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Sources: Bloomberg and S&P Global Market Intelligence. Assumes reinvestment of dividends.
(1)Alexandria’s IPO priced at $20.00 per share on May 27, 1997.
(2)Represents the FTSE Nareit Equity Office Index.
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As of December 31, 2022.
(1)Quarter annualized. Refer to “Net debt and preferred stock to Adjusted EBITDA” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
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As of December 31, 2022.
(1)Represents the percentage of our annual rental revenue generated by our top 20 tenants that are also investment-grade or publicly traded large cap tenants. Refer to “Annual rental revenue” and “Investment-grade or publicly traded large cap tenants” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
(2)Represents annual rental revenue currently generated from space that is targeted for a future change in use, including 1.1% of total annual rental revenue that is generated from covered land play projects. The weighted-average remaining term of these leases is 5.2 years.
(3)Our other tenants, which aggregate 2.0% of our annual rental revenue, comprise technology, professional services, finance, telecommunications, and construction/real estate companies and less than 1.0% of retail-related tenants by annual rental revenue.
(4)Represents annual rental revenue in effect as of December 31, 2022. Refer to “Annual rental revenue” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
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(1)Based on the closing price of our common stock as of December 31, 2022 of $145.67 and the common stock dividend declared for the three months ended December 31, 2022 of $1.21 annualized.
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(1)Includes initial proceeds from our joint venture partners’ contribution toward construction projects.
(2)Represents the aggregate gain and consideration in excess of book value recognized on dispositions and partial interest sales, respectively.
(3)Represents the weighted-average capitalization rates for stabilized operating assets.
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Refer to “Net operating income” in the “Definitions and reconciliations” of our Supplemental Information for additional details and its reconciliation from the most directly comparable financial measures presented in accordance with GAAP.
(1)As of December 31, 2022. Represents projects under construction aggregating 5.6 million RSF and seven near-term projects aggregating 2.0 million RSF expected to commence construction during the next four quarters.
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As of December 31, 2022.
(1)Refer to “Key credit metrics” of our Supplemental Information for additional details.
(2)Refer to “Annual rental revenue” and “Investment-grade or publicly traded large cap tenants” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
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(1)A credit rating is not a recommendation to buy, sell, or hold securities and may be subject to revision or withdrawal at any time. Top 10% ranking represents credit rating levels from Moody’s Investors Service and S&P Global Ratings for publicly traded U.S. REITs, from Bloomberg Professional Services as of December 31, 2022.
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As of December 31, 2022.
(1)Quarter annualized. Refer to “Net debt and preferred stock to Adjusted EBITDA” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
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(1)Reflects current score for Alexandria and latest scores available for the FTSE Nareit All REITs Index companies from Bloomberg Professional Services as of December 31, 2022.
(2)Top 10% ranking among companies included in the Sustainalytics Global Universe, based on information available from Bloomberg Professional Services as of December 31, 2022.
(3)Reflects current scores for Alexandria and latest scores available for the FTSE Nareit All REITs Index companies on ISS’s website as of December 31, 2022.
(4)Top 10% ranking among FTSE Nareit All REITs Index companies, based on information available from Bloomberg Professional Services as of December 31, 2022.
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Environmental progress data for 2021 reflected in the chart above received independent limited assurance from DNV Business Assurance USA, Inc.
(1)2025 environmental goal for Alexandria’s cumulative progress relative to a 2015 baseline on a like-for-like basis for buildings in operation that the Company directly manages.
(2)2025 environmental goal for buildings in operation that Alexandria indirectly and directly manages. In alignment with industry best practice, the Company reports waste diversion annually; the 2025 goal is to achieve a waste diversion rate of at least 45% by 2025.
(3)Progress toward 2025 goal.
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Table of Contents
December 31, 2022
EARNINGS PRESS RELEASEPagePage
Fourth Quarter and Year Ended December 31, 2022 Financial and Operating Results
SUPPLEMENTAL INFORMATIONPagePage
External Growth / Investments in Real Estate
New Class A Development and Redevelopment Properties:
Internal Growth
Balance Sheet Management
Definitions and Reconciliations
This document includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Please refer to page 7 of this Earnings Press Release and Supplemental Information for further information.

This document is not an offer to sell or a solicitation to buy securities of Alexandria Real Estate Equities, Inc. Any offers to sell or solicitations to buy our securities shall be made only by means of a prospectus approved for that purpose. Unless otherwise indicated, the “Company,” “Alexandria,” “ARE,” “we,” “us,” and “our” refer to Alexandria Real Estate Equities, Inc. and our consolidated subsidiaries.
Alexandria Real Estate Equities, Inc. All Rights Reserved. © 2023
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Alexandria Real Estate Equities, Inc. Reports:
4Q22 and 2022 Net Income per Share – Diluted of $0.31 and $3.18, respectively; and
4Q22 and 2022 FFO per Share – Diluted, As Adjusted, of $2.14 and $8.42, respectively
PASADENA, Calif. – January 30, 2023 – Alexandria Real Estate Equities, Inc. (NYSE: ARE) announced financial and operating results for the fourth quarter and year ended December 31, 2022.
Key highlights
Operating results4Q224Q2120222021
Total revenues:
In millions$670.3 $576.9 $2,589.0 $2,114.2 
Growth16.2 %22.5 %
Net income attributable to Alexandria’s common stockholders – diluted
In millions$51.8 $72.8 $513.3 $563.4 
Per share$0.31 $0.47 $3.18 $3.82 
Funds from operations attributable to Alexandria’s common stockholders – diluted, as adjusted
In millions$353.6 $303.6 $1,361.7 $1,144.9 
Per share$2.14 $1.97 $8.42 $7.76 
An operationally excellent, industry-leading REIT with a high-quality client base of approximately 1,000 tenants supporting high-quality revenues, cash flows, and strong margins
Percentage of total annual rental revenue in effect from investment-grade or publicly traded large cap tenants48 %
Sustained strength in tenant collections:
Tenant receivables as of December 31, 2022
$7.6million
January 2023 tenant rent and receivables collected as of January 30, 2023
99.4 %
Occupancy of operating properties in North America94.8 %
Operating margin70 %
Adjusted EBITDA margin69 %
Weighted-average remaining lease term:
All tenants7.1years
Top 20 tenants9.4years
Second-highest annual leasing volume and rental rate increases (cash basis)
Annual leasing volume of 8.4 million RSF in 2022 represents the second highest in Company history, with 74% generated from our client base of approximately 1,000 tenants.
4Q22 leasing volume of 2.0 million RSF represents the fourth highest in Company history.
Rental rate increase (cash basis) of 22.1% on lease renewals and re-leasing of space represents the second-highest rental rate growth (cash basis) in Company history.
4Q222022
Total leasing activity – RSF2,000,322 8,405,587 
Lease renewals and re-leasing of space:
RSF (included in total leasing activity above)1,494,345 4,540,325 
Rental rate increases26.0%
(1)
31.0%
Rental rate increases (cash basis)19.6%
(1)
22.1%
(1)Includes rental rate increases related to two recently acquired office leases, including one lease subject to a fixed-rate renewal option and one full-building lease in a non-core submarket. Excluding these leases, rental rate increases for the three months ended December 31, 2022 were 36.8% and 31.4% (cash basis).



Continued strong net operating income and internal growth, including highest annual same property and third-highest quarterly same property growth (cash basis)
Net operating income (cash basis) of $1.7 billion for 4Q22 annualized, up $248.4 million, or 17.3%, compared to 4Q21 annualized.
96% of our leases contain contractual annual rent escalations approximating 3%.
Same property net operating income growth:
4.7% and 10.9% (cash basis) for 4Q22 over 4Q21, representing the third-highest (cash basis) growth in Company history.
6.6% and 9.6% (cash basis) for 2022 over 2021, with both increases representing the highest growth in Company history.
Our 2022 same property growth outperformed our 10-year averages of 3.6% and 6.7% (cash basis) as a result of an increase in same property occupancy of 100 bps and early lease renewals that commenced in late 2021/early 2022.
Continued strong and flexible balance sheet with lowest leverage in Company history and 13.2 years of remaining term of outstanding debt
Investment-grade credit ratings ranked in the top 10% among all publicly traded U.S. REITs.
Net debt and preferred stock to Adjusted EBITDA of 5.1x, the lowest ratio in Company history, and fixed-charge coverage ratio of 5.0x for 4Q22 annualized.
Total debt and preferred stock to gross assets of 25%.
99.4% of our debt has a fixed rate.
13.2 years weighted-average remaining term of debt.
No debt maturities prior to 2025.
$5.3 billion of liquidity.
$1.4 billion of contractual construction funding commitments from existing real estate joint venture partners expected over the next four years.
Continued strong, consistent, and increasing dividends with a focus on retaining significant net cash flows from operating activities after dividends for reinvestment
Common stock dividend declared for 4Q22 of $1.21 per common share, aggregating $4.72 per common share for the year ended December 31, 2022, up 24 cents, or 5%, over the year ended December 31, 2021.
Dividend yield of 3.3% as of December 31, 2022.
Dividend payout ratio of 58% for the three months ended December 31, 2022.
Average annual dividend per-share growth of 6.5% over the last five years.
Alexandria’s value-creation pipeline drives visibility for future growth aggregating over $655 million of incremental net operating income
Highly leased value-creation pipeline of current and seven near-term projects expected to generate greater than $655 million of incremental net operating income, primarily commencing from 1Q23 through 4Q25.
7.6 million RSF of value-creation projects, which are 72% leased.
77% of the leased RSF of our value-creation projects was generated from our client base of approximately 1,000 tenants.
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Fourth Quarter and Year Ended December 31, 2022 Financial and Operating Results (continued)
December 31, 2022
Key items included in operating results
Key items included in net income attributable to Alexandria’s common stockholders:
4Q224Q214Q224Q212022202120222021
(In millions, except per share amounts)
AmountPer Share – DilutedAmountPer Share – Diluted
Impairment of real estate$(26.2)$— $(0.16)$— $(65.0)$(52.7)$(0.40)$(0.35)
Loss on early extinguishment of debt— — — — (3.3)(67.3)(0.02)(0.46)
Gain on sales of real estate— 124.2 — 0.80 537.9 126.6 3.33 0.86 
Acceleration of stock compensation expense due to executive officer resignation— — — — (7.2)— (0.04)— 
Unrealized (losses) gains on non-real estate investments(24.1)(139.7)(0.15)(0.91)(412.2)43.6 (2.55)0.30 
Impairment of non-real estate investments(20.5)— (0.12)— (20.5)— (0.13)— 
Significant realized gains on non-real estate investments— — — — — 110.1 — 0.75 
Total
$(70.8)$(15.5)$(0.43)$(0.11)$29.7 $160.3 $0.19 $1.10 
Refer to “Funds from operations and funds from operations per share” of this Earnings Press Release for additional details.
Strong balance sheet management
Key metrics as of December 31, 2022
$35.0 billion in total market capitalization.
$24.9 billion in total equity capitalization, which ranks in the top 10% among all publicly traded U.S. REITs.
No remaining LIBOR-based debt ahead of June 2023 phase-out.
4Q22Goal
QuarterTrailing
4Q23
Annualized12 MonthsAnnualized
Net debt and preferred stock to Adjusted EBITDA5.1x5.2xLess than or equal to 5.1x
Fixed-charge coverage ratio5.0x5.0x4.5x to 5.0x
Key capital events
During 4Q22, we settled outstanding forward equity sales agreements by issuing 8.0 million shares of common stock at an average price of $186.87 and received net proceeds of $1.5 billion.
In December 2022, we entered into new forward equity sales agreements aggregating $104.7 million to sell 699,274 shares under our ATM program at an average price of $149.68 per share (before underwriter discounts). We expect to settle these forward equity sales agreements in 2023.
As of December 31, 2022, the remaining aggregate amount available under our ATM program for future sales of common stock was $141.9 million. We expect to establish a new ATM program in 1Q23.
Investments
As of December 31, 2022:
Our non-real estate investments aggregated $1.6 billion.
Unrealized gains presented in our consolidated balance sheet were $397.0 million, comprising gross unrealized gains and losses aggregating $506.4 million and $109.4 million, respectively.
Investment loss of $19.7 million for the three months ended December 31, 2022 presented in our consolidated statement of operations consisted of $25.0 million of realized gains, $24.1 million of unrealized losses/changes in fair value, and $20.5 million of impairments primarily related to three non-real estate investments in privately held entities that do not report NAV.
External growth and investments in real estate
Delivery and commencement of value-creation projects
During 4Q22, we placed into service development and redevelopment projects aggregating 497,755 RSF across multiple submarkets, resulting in $28 million of incremental annual net operating income.
Annual net operating income (cash basis) is expected to increase by $57 million upon the burn-off of initial free rent from recently delivered projects.
Commenced two development projects aggregating 467,567 RSF during 4Q22, including 212,796 RSF at 1450 Owens Street in our Mission Bay submarket, which will be 100% funded by our joint venture partner, and 254,771 RSF at 10075 Barnes Canyon Road in our Sorrento Mesa submarket, which will be 50% funded by our joint venture partner.
Value-creation pipeline of new Class A development and redevelopment projects as a percentage of gross assets4Q22
Under construction projects 68% leased/negotiating
10%
Near-term projects expected to commence construction in the next four quarters 88% leased
2%
Income-producing/potential cash flows/covered land play(1)
7%
Land3%
(1)Includes projects that have existing buildings that are generating or can generate operating cash flows. Also includes development rights associated with existing operating campuses. These projects aggregate 1.1% of total annual rental revenue as of December 31, 2022 and are included in targeted for a future change in use in our industry mix chart. Refer to “High-quality and diverse client base in AAA locations” in our Supplemental Information.
81% of construction costs related to active development and redevelopment projects aggregating 5.6 million RSF are under a guaranteed maximum price (“GMP”) contract or other fixed contracts. Our budgets also include construction cost contingencies in GMP contracts plus additional landlord contingencies that generally range from 3% to 5%.
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Fourth Quarter and Year Ended December 31, 2022 Financial and Operating Results (continued)
December 31, 2022
Industry and ESG leadership: catalyzing and leading the way for positive change to benefit human health and society
In January 2023, Alexandria Venture Investments was recognized by Silicon Valley Bank in its “Healthcare Investments and Exits: Annual Report 2022” as the #1 most active corporate investor in biopharma by new deal volume (2021-2022) for the sixth consecutive year. Alexandria’s venture activity provides us with, among other things, mission-critical data on and insights into key macro life science industry and innovation trends.
In November 2022, our executive chairman and founder, Joel S. Marcus, presented at the much-anticipated Annual Baron Investment Conference for a rare second time. Mr. Marcus opened the program with a presentation on what renowned author and business strategist Jim Collins describes as our “Superior Results, Distinctive Impact, and Lasting Endurance.”
In November 2022, Alexandria earned several 2022 TOBY (The Outstanding Building of the Year) Awards from BOMA (Building Owners and Managers Association) in Boston, Seattle, and Raleigh-Durham. The TOBY Awards recognize quality in commercial buildings and reward excellence in building management.
In our Cambridge/Inner Suburbs submarket: Four recognitions across three of our premier mega campuses – Alexandria Center® at Kendall Square, Alexandria Center® at One Kendall Square, and Alexandria Technology Square® – for Corporate Facility, Laboratory Building, Renovated Building, and Building Under 100,000 SF categories.
In our Lake Union submarket: A recognition for 1165 Eastlake Avenue East on The Eastlake Life Science Campus by Alexandria mega campus in the Corporate Facility category.
In our Research Triangle submarket: A recognition for 9 Laboratory Drive on our Alexandria Center® for AgTech campus in the Life Science category.
In October 2022, Mr. Marcus, as a newly appointed member of the Prix Galien USA’s esteemed Awards jury, honored groundbreaking medical innovations in life science. He served on the Prix Galien committee, alongside other influential science leaders, that recognized the Best Startup, Best Digital Health Solution and the inaugural Best Incubators, Accelerators and Equity.
In October 2022, 9880 Campus Point Drive on the Campus Point by Alexandria mega campus in our University Town Center submarket received an Orchid award for Architecture from the San Diego Architectural Foundation, and a People’s Choice Orchid. The facility is home to Alexandria GradLabs®, a dynamic platform that is accelerating the growth of promising early-stage life science companies.
Alexandria is addressing some of today’s most urgent societal challenges through our eight social responsibility pillars, including the mental health crisis and opioid addiction. In October 2022:
Alexandria presented a timely conversation on the state of mental health in America with former congressman Patrick J. Kennedy, one of the world’s leading voices and policymakers on mental health, at the Galien Forum USA 2022, which was held at the Alexandria Center® for Life Science – New York City.
OneFifteen, a novel, data-driven comprehensive care model we developed in partnership with Verily, celebrated its third anniversary of the campus’s opening in Dayton, Ohio. OneFifteen has treated over 5,800 patients since opening its doors in October 2019.
About Alexandria Real Estate Equities, Inc.
Alexandria Real Estate Equities, Inc. (NYSE: ARE), an S&P 500® company, is a best-in-class, mission-driven life science REIT making a positive and lasting impact on the world. As the pioneer of the life science real estate niche since its founding in 1994, Alexandria is the preeminent and longest-tenured owner, operator, and developer of collaborative life science, agtech, and technology campuses in AAA innovation cluster locations, including Greater Boston, the San Francisco Bay Area, New York City, San Diego, Seattle, Maryland, and Research Triangle. The trusted partner to approximately 1,000 tenants, Alexandria has a total market capitalization of $35.0 billion and an asset base in North America of 74.6 million square feet (“SF”) as of December 31, 2022, which includes 41.8 million RSF of operating properties and 5.6 million RSF of Class A properties undergoing construction, 9.9 million RSF of near-term and intermediate-term development and redevelopment projects, and 17.3 million SF of future development projects. Alexandria has a longstanding and proven track record of developing Class A properties clustered in life science, agtech, and technology campuses that provide our innovative tenants with highly dynamic and collaborative environments that enhance their ability to successfully recruit and retain world-class talent and inspire productivity, efficiency, creativity, and success. Alexandria also provides strategic capital to transformative life science, agrifoodtech, climate innovation, and technology companies through our venture capital platform. We believe our unique business model and diligent underwriting ensure a high-quality and diverse tenant base that results in higher occupancy levels, longer lease terms, higher rental income, higher returns, and greater long-term asset value. For additional information on Alexandria, please visit www.are.com.
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Acquisitions
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December 31, 2022
(Dollars in thousands)
PropertySubmarket/MarketDate of
Purchase
Number of PropertiesOperating
Occupancy
Square FootagePurchase Price
Acquisitions With Development/Redevelopment Opportunities(1)
Future DevelopmentOperating With Future Development/ Redevelopment
Operating(2)
Total(3)
Completed in YTD 3Q223992 %6,538,991 3,305,764 451,760 9,600,231 $2,437,592 
Completed in 4Q22:
35 Gatehouse Drive(4)
Route 128/Greater Boston12/29/221100 75,000 31,611 265,965 372,576 272,500 
1001 Trinity Street and 1020 Red River StreetAustin/Texas10/4/222100 51,038 198,972 — 250,010 108,000 
Other360 
3100 126,038 230,583 
(5)
265,965 
(5)
622,586 380,860 
Total 2022 acquisitions4293 %6,665,029 3,536,347 717,725 10,222,817 $2,818,452 

(1)We expect to provide total estimated costs and related yields for development and redevelopment projects in the future, subsequent to the commencement of construction.
(2)Represents the operating component of our value-creation acquisitions that is not expected to undergo future development or redevelopment.
(3)Represents total square footage upon completion of development or redevelopment of one or more new Class A properties. Square footage presented includes RSF of buildings currently in operation with future development or redevelopment opportunities. Refer to “Definitions and reconciliations” in our Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(4)Represents an opportunity to expand our existing properties at 40, 50, and 60 Sylvan Road and 840 Winter Street into a mega campus.
(5)We expect the acquisitions completed during the three months ended December 31, 2022 to generate initial annual net operating income of approximately $28 million for the twelve months following acquisition. These acquisitions included three operating properties with a weighted-average acquisition date of December 8, 2022 (weighted by initial annual net operating income).

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Dispositions and Sales of Partial Interests
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December 31, 2022
(Dollars in thousands, except per RSF amounts)
Capitalization Rate
(Cash Basis)
Sales Price per RSFGain or Consideration in Excess of Book Value
PropertySubmarket/MarketDate of SaleInterest SoldRSFCapitalization RateSales Price
100 Binney Street
Cambridge/Inner Suburbs/
Greater Boston
3/30/2270 %432,931 3.6 %3.5 %$713,228 
(1)
$2,353 $413,615 
(2)
300 Third Street
Cambridge/Inner Suburbs/
Greater Boston
6/27/2270 %131,963 4.6 %4.3 %166,485 
(1)
$1,802 113,020 
(2)
Alexandria Park at 128, 285 Bear Hill Road, 111 and 130 Forbes Boulevard, and 20 Walkup Drive
Route 128 and Route 495/
Greater Boston
6/8/22100 %617,043 5.1 %5.1 %334,397 $542 202,325 
1450 Owens StreetMission Bay/San Francisco Bay Area7/1/2220 %
(3)
191,000 N/AN/A25,039 
(1)
N/A10,083 
(2)
341 and 343 Oyster Point Boulevard, 7000 Shoreline Court, and Shoreway Science CenterSouth San Francisco and Greater Stanford/San Francisco Bay Area9/15/22100 %330,379 5.2 %5.2 %383,635 $1,161223,127 
3215 Merryfield RowTorrey Pines/San Diego9/1/2270 %170,523 4.5 %4.2 %149,940 
(1)
$1,25642,214 
(2)
Summers Ridge Science ParkSorrento Mesa/San Diego9/15/2270 %316,531 4.9 %4.6 %159,600 
(1)
$72065,097 
(2)
7330 and 7360 Carroll RoadSorrento Mesa/San Diego9/15/22100 %84,442 4.4 %4.6 %59,476 $70435,463 
OtherVariousN/AN/A230,496 N/A77,003 
Total 2022 dispositions and sales of partial interests$2,222,296 $1,181,947 

(1)Represents the contractual sales price for the percentage interest of the property sold by us.
(2)We retained control over the newly formed real estate joint venture and therefore continued to consolidate this property. We accounted for the difference between the consideration received and the book value of the interest sold as an equity transaction, with no gain or loss recognized in earnings.
(3)Relates to the sale of a partial interest in a land parcel. The noncontrolling interest share of our joint venture partner is anticipated to increase to 75% as our partner contributes capital for construction over time. As of December 31, 2022, the noncontrolling interest share of our joint venture partner was 40.3%.

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Guidance
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December 31, 2022
(Dollars in millions, except per share amounts)
The following guidance is based on our current view of existing market conditions and assumptions for the year ending December 31, 2023 and is consistent with the guidance issued on our Form 8-K filed on November 30, 2022, except for an update to “excess 2022 bond capital held as cash at December 31, 2022,” which reflects the actual amount of $300 million as of December 31, 2022, compared to the prior guidance range from $200 million to $300 million.

There can be no assurance that actual 2023 results will not be materially higher or lower than these expectations. Also, refer to our discussion of “forward-looking statements” on page 7 of this Earnings Press Release for additional details.

Projected 2023 Earnings per Share and Funds From Operations per Share Attributable to Alexandria’s Common Stockholders – Diluted
Earnings per share(1)
$3.41 to $3.61
Depreciation and amortization of real estate assets5.50
Allocation to unvested restricted stock awards(0.05)
Funds from operations per share(2)
$8.86 to $9.06
Midpoint$8.96
Key AssumptionsLowHigh
Occupancy percentage in North America as of December 31, 2023
94.8%95.8%
Lease renewals and re-leasing of space:
Rental rate increases27.0%32.0%
Rental rate increases (cash basis)11.0%16.0%
Same property performance:
Net operating income increase2.0%4.0%
Net operating income increase (cash basis)4.0%6.0%
Straight-line rent revenue$130 $145 
General and administrative expenses$183 $193 
Capitalization of interest$342 $362 
Interest expense$74 $94 
Key Credit Metrics
2023 Guidance
Net debt and preferred stock to Adjusted EBITDA – 4Q23 annualized
Less than or equal to 5.1x
Fixed-charge coverage ratio – 4Q23 annualized
4.5x to 5.0x
Key Sources and Uses of CapitalRangeMidpoint
Sources of capital:
Incremental debt$550 $850 $700 
Excess 2022 bond capital held as cash at December 31, 2022300 300 300 
Net cash provided by operating activities after dividends350 400 375 
Real estate dispositions, sales of partial interests, and issuances of common equity1,400 2,400 1,900 
(3)
Total sources of capital$2,600 $3,950 $3,275 
Uses of capital:
Construction (refer to page 48)
$2,400 $3,550 $2,975 
Acquisitions (refer to page 4)
200 400 300 
Total uses of capital$2,600 $3,950 $3,275 
Incremental debt (included above):
Issuance of unsecured senior notes payable$500 $1,000 $750 
Unsecured senior line of credit, commercial paper, and other50 (150)(50)
Incremental debt$550 $850 $700 

(1)Excludes unrealized gains or losses after December 31, 2022 that are required to be recognized in earnings and are excluded from funds from operations per share, as adjusted.
(2)Refer to “Funds from operations and funds from operations, as adjusted, attributable to Alexandria’s common stockholders” in the “Definitions and reconciliations” of our Supplemental Information for additional details.
(3)Refer to “Key capital events” on page 2 of this Earnings Press Release for additional details. During the three months ended December 31, 2022, we entered into new forward equity sales agreements aggregating $104.7 million to sell 699,274 shares under our ATM program at an average price of $149.68 per share (before underwriter discounts). We expect to settle these forward equity sales agreements in 2023 and establish a new ATM program in 1Q23.
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Earnings Call Information and About the Company
December 31, 2022
We will host a conference call on Tuesday, January 31, 2023, at 3:00 p.m. Eastern Time (“ET”)/noon Pacific Time (“PT”), which is open to the general public, to discuss our financial and operating results for the fourth quarter and year ended December 31, 2022. To participate in this conference call, dial (833) 366-1125 or (412) 902-6738 shortly before 3:00 p.m. ET/noon PT and ask the operator to join the call for Alexandria Real Estate Equities, Inc. The audio webcast can be accessed at www.are.com in the “For Investors” section. A replay of the call will be available for a limited time from 5:00 p.m. ET/2:00 p.m. PT on Tuesday, January 31, 2023. The replay number is (877) 344-7529 or (412) 317-0088, and the access code is 7024203.

Additionally, a copy of this Earnings Press Release and Supplemental Information for the fourth quarter and year ended December 31, 2022 is available in the “For Investors” section of our website at www.are.com or by following this link: https://www.are.com/fs/2022q4.pdf.

For any questions, please contact Joel S. Marcus, executive chairman and founder; Peter M. Moglia, chief executive officer and co-chief investment officer; Dean A. Shigenaga, president and chief financial officer; Paula Schwartz, managing director of Rx Communications Group, at (917) 633-7790; or Sara M. Kabakoff, vice president – strategic communications.

About the Company

Alexandria Real Estate Equities, Inc. (NYSE: ARE), an S&P 500® company, is a best-in-class, mission-driven life science REIT making a positive and lasting impact on the world. As the pioneer of the life science real estate niche since its founding in 1994, Alexandria is the preeminent and longest-tenured owner, operator, and developer of collaborative life science, agtech, and technology campuses in AAA innovation cluster locations, including Greater Boston, the San Francisco Bay Area, New York City, San Diego, Seattle, Maryland, and Research Triangle. The trusted partner to approximately 1,000 tenants, Alexandria has a total market capitalization of $35.0 billion and an asset base in North America of 74.6 million SF as of December 31, 2022, which includes 41.8 million RSF of operating properties and 5.6 million RSF of Class A properties undergoing construction, 9.9 million RSF of near-term and intermediate-term development and redevelopment projects, and 17.3 million SF of future development projects. Alexandria has a longstanding and proven track record of developing Class A properties clustered in life science, agtech, and technology campuses that provide our innovative tenants with highly dynamic and collaborative environments that enhance their ability to successfully recruit and retain world-class talent and inspire productivity, efficiency, creativity, and success. Alexandria also provides strategic capital to transformative life science, agrifoodtech, climate innovation, and technology companies through our venture capital platform. We believe our unique business model and diligent underwriting ensure a high-quality and diverse tenant base that results in higher occupancy levels, longer lease terms, higher rental income, higher returns, and greater long-term asset value. For additional information on Alexandria, please visit www.are.com.

***********

This document includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements include, without limitation, statements regarding our 2023 earnings per share attributable to Alexandria’s common stockholders – diluted, 2023 funds from operations per share attributable to Alexandria’s common stockholders – diluted, net operating income, and our projected sources and uses of capital. You can identify the forward-looking statements by their use of forward-looking words, such as “forecast,” “guidance,” “goals,” “projects,” “estimates,” “anticipates,” “believes,” “expects,” “intends,” “may,” “plans,” “seeks,” “should,” “targets,” or “will,” or the negative of those words or similar words. These forward-looking statements are based on our current expectations, beliefs, projections, future plans and strategies, anticipated events or trends, and similar expressions concerning matters that are not historical facts, as well as a number of assumptions concerning future events. There can be no assurance that actual results will not be materially higher or lower than these expectations. These statements are subject to risks, uncertainties, assumptions, and other important factors that could cause actual results to differ materially from the results discussed in the forward-looking statements. Factors that might cause such a difference include, without limitation, our failure to obtain capital (debt, construction financing, and/or equity) or refinance debt maturities, lower than expected yields, increased interest rates and operating costs, adverse economic or real estate developments in our markets, our failure to successfully place into service and lease any properties undergoing development or redevelopment and our existing space held for future development or redevelopment (including new properties acquired for that purpose), our failure to successfully operate or lease acquired properties, decreased rental rates, increased vacancy rates or failure to renew or replace expiring leases, defaults on or non-renewal of leases by tenants, adverse general and local economic conditions, an unfavorable capital market environment, decreased leasing activity or lease renewals, failure to obtain LEED and other healthy building certifications and efficiencies, and other risks and uncertainties detailed in our filings with the Securities and Exchange Commission (“SEC”). Accordingly, you are cautioned not to place undue reliance on such forward-looking statements. All forward-looking statements are made as of the date of this Earnings Press Release and Supplemental Information, and unless otherwise stated, we assume no obligation to update this information and expressly disclaim any obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise. For more discussion relating to risks and uncertainties that could cause actual results to differ materially from those anticipated in our forward-looking statements, and risks to our business in general, please refer to our SEC filings, including our most recent annual report on Form 10-K and any subsequent quarterly reports on Form 10-Q.

Alexandria®, Lighthouse Design® logo, Building the Future of Life-Changing Innovation®, That’s What’s in Our DNA®, At the Vanguard and Heart of the Life Science Ecosystem™, Alexandria Center®, Alexandria Technology Square®, Alexandria Technology Center®, and Alexandria Innovation Center® are copyrights and trademarks of Alexandria Real Estate Equities, Inc. All other company names, trademarks, and logos referenced herein are the property of their respective owners.
7

Consolidated Statements of Operations
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December 31, 2022
(Dollars in thousands, except per share amounts)
 Three Months EndedYear Ended
 12/31/22

9/30/226/30/223/31/2212/31/2112/31/2212/31/21
Revenues:       
Income from rentals$665,674 $656,853 $640,959 $612,554 $574,656 $2,576,040 $2,108,249 
Other income4,607 2,999 2,805 2,511 2,267 12,922 5,901 
Total revenues670,281 659,852 643,764 615,065 576,923 2,588,962 2,114,150 
Expenses:
Rental operations204,352 201,189 196,284 181,328 175,717 783,153 623,555 
General and administrative42,992 49,958 43,397 40,931 41,654 177,278 151,461 
Interest17,522 22,984 24,257 29,440 34,862 94,203 142,165 
Depreciation and amortization264,480 254,929 242,078 240,659 239,254 1,002,146 821,061 
Impairment of real estate26,186 38,783 — — — 64,969 52,675 
Loss on early extinguishment of debt— — 3,317 — — 3,317 67,253 
Total expenses555,532 567,843 509,333 492,358 491,487 2,125,066 1,858,170 
Equity in earnings of unconsolidated real estate joint ventures172 40 213 220 3,018 645 12,255 
Investment (loss) income(19,653)(32,305)(39,481)(240,319)(112,884)(331,758)259,477 
Gain on sales of real estate— 323,699 214,219 — 124,226 537,918 126,570 
Net income (loss)95,268 383,443 309,382 (117,392)99,796 670,701 654,282 
Net income attributable to noncontrolling interests(40,949)(38,747)(37,168)(32,177)(24,901)(149,041)(83,035)
Net income (loss) attributable to Alexandria Real Estate Equities, Inc.’s stockholders54,319 344,696 272,214 (149,569)74,895 521,660 571,247 
Net income attributable to unvested restricted stock awards
(2,526)(3,257)(2,934)(2,081)(2,098)(8,392)(7,848)
Net income (loss) attributable to Alexandria Real Estate Equities, Inc.’s common stockholders$51,793 $341,439 $269,280 $(151,650)$72,797 $513,268 $563,399 
Net income (loss) per share attributable to Alexandria Real Estate Equities, Inc.’s common stockholders:
Basic$0.31 $2.11 $1.67 $(0.96)$0.47 $3.18 $3.83 
Diluted$0.31 $2.11 $1.67 $(0.96)$0.47 $3.18 $3.82 
Weighted-average shares of common stock outstanding:
Basic165,393 161,554 161,412 158,198 153,464 161,659 146,921 
Diluted165,393 161,554 161,412 158,198 154,307 161,659 147,460 
Dividends declared per share of common stock$1.21 $1.18 $1.18 $1.15 $1.15 $4.72 $4.48 

8

Consolidated Balance Sheets
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December 31, 2022
(In thousands)

12/31/229/30/226/30/223/31/2212/31/21
Assets    
Investments in real estate$29,945,440 $28,771,745 $27,952,931 $27,100,009 $24,980,669 
Investments in unconsolidated real estate joint ventures38,435 38,285 37,587 38,456 38,483 
Cash and cash equivalents825,193 533,824 420,258 775,060 361,348 
Restricted cash32,782 332,344 97,404 95,106 53,879 
Tenant receivables7,614 7,759 7,069 7,570 7,379 
Deferred rent942,646 918,995 905,699 881,743 839,335 
Deferred leasing costs516,275 506,864 498,434 484,184 402,898 
Investments1,615,074 1,624,921 1,657,461 1,661,101 1,876,564 
Other assets 1,599,940 1,633,877 1,667,210 1,801,027 1,658,818 
Total assets$35,523,399 $34,368,614 $33,244,053 $32,844,256 $30,219,373 
Liabilities, Noncontrolling Interests, and Equity
Secured notes payable$59,045 $40,594 $24,986 $208,910 $205,198 
Unsecured senior notes payable10,100,717 10,098,588 10,096,462 10,094,337 8,316,678 
Unsecured senior line of credit and commercial paper— 386,666 149,958 — 269,990 
Accounts payable, accrued expenses, and other liabilities
2,471,259 2,393,764 2,317,940 2,172,692 2,210,410 
Dividends payable209,131 193,623 192,571 187,701 183,847 
Total liabilities12,840,152 13,113,235 12,781,917 12,663,640 11,186,123 
Commitments and contingencies
Redeemable noncontrolling interests9,612 9,612 9,612 9,612 9,612 
Alexandria Real Estate Equities, Inc.’s stockholders’ equity:
Common stock
1,707 1,626 1,615 1,614 1,580 
Additional paid-in capital18,991,492 17,639,434 17,149,571 16,934,094 16,195,256 
Accumulated other comprehensive loss(20,812)(24,725)(11,851)(5,727)(7,294)
Alexandria Real Estate Equities, Inc.’s stockholders’ equity18,972,387 17,616,335 17,139,335 16,929,981 16,189,542 
Noncontrolling interests3,701,248 3,629,432 3,313,189 3,241,023 2,834,096 
Total equity22,673,635 21,245,767 20,452,524 20,171,004 19,023,638 
Total liabilities, noncontrolling interests, and equity
$35,523,399 $34,368,614 $33,244,053 $32,844,256 $30,219,373 

9

Funds From Operations and Funds From Operations per Share
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December 31, 2022
(In thousands)
The following table presents a reconciliation of net income (loss) attributable to Alexandria’s common stockholders, the most directly comparable financial measure presented in accordance with U.S. generally accepted accounting principles (“GAAP”), including our share of amounts from consolidated and unconsolidated real estate joint ventures, to funds from operations attributable to Alexandria’s common stockholders – diluted, and funds from operations attributable to Alexandria’s common stockholders – diluted, as adjusted, for the periods below:

 
Three Months EndedYear Ended
12/31/229/30/226/30/223/31/2212/31/2112/31/2212/31/21
Net income (loss) attributable to Alexandria’s common stockholders$51,793 $341,439 $269,280 $(151,650)$72,797 $513,268 $563,399 
Depreciation and amortization of real estate assets261,185 251,453 238,565 237,160 234,979 988,363 804,633 
Noncontrolling share of depreciation and amortization from consolidated real estate JVs
(29,702)(27,790)(26,418)(23,681)(21,265)(107,591)(70,880)
Our share of depreciation and amortization from unconsolidated real estate JVs
982 795 934 955 3,058 3,666 13,734 
Gain on sales of real estate— (323,699)(214,219)— (124,226)(537,918)(126,570)
Impairment of real estate – rental properties
20,899 
(1)
— — — — 20,899 25,485 
Allocation to unvested restricted stock awards
(953)1,002 — — — (1,118)(6,315)
Funds from operations attributable to Alexandria’s common stockholders – diluted(2)
304,204 243,200 268,142 62,784 165,343 879,569 1,203,486 
Unrealized losses (gains) on non-real estate investments24,117 56,515 68,128 263,433 139,716 412,193 (43,632)
Significant realized gains on non-real estate investments— — — — — — (110,119)
Impairment of non-real estate investments20,512 
(3)
— — — — 20,512 
(3)
— 
Impairment of real estate
5,287 38,783 — — — 44,070 27,190 
Loss on early extinguishment of debt
— — 3,317 — — 3,317 67,253 
Acceleration of stock compensation expense due to executive officer resignation— 7,185 — — — 7,185 — 
Allocation to unvested restricted stock awards
(482)(1,033)(778)(1,604)(1,432)(5,137)710 
Funds from operations attributable to Alexandria’s common stockholders – diluted, as adjusted$353,638 $344,650 $338,809 $324,613 $303,627 $1,361,709 $1,144,888 


(1)Primarily consists of an impairment of one real estate asset recognized to reduce the carrying amount of the asset to its estimated fair value, less costs to sell, upon its classification as held for sale in December 2022. We expect to complete the sale of this asset during 2023.
(2)Calculated in accordance with standards established by the Nareit Board of Governors.
(3)Primarily relates to three investments in privately held entities that do not report NAV.

10

Funds From Operations and Funds From Operations per Share (continued)
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December 31, 2022
(In thousands, except per share amounts)

The following table presents a reconciliation of net income (loss) per share attributable to Alexandria’s common stockholders, the most directly comparable financial measure presented in accordance with GAAP, including our share of amounts from consolidated and unconsolidated real estate joint ventures, to funds from operations per share attributable to Alexandria’s common stockholders – diluted, and funds from operations per share attributable to Alexandria’s common stockholders – diluted, as adjusted, for the periods below. Per share amounts may not add due to rounding.

Three Months EndedYear Ended
12/31/229/30/226/30/223/31/2212/31/2112/31/2212/31/21
Net income (loss) per share attributable to Alexandria’s common stockholders – diluted$0.31 $2.11 $1.67 $(0.96)$0.47 $3.18 $3.82 
Depreciation and amortization of real estate assets
1.41 1.39 1.32 1.36 1.40 5.47 5.07 
Gain on sales of real estate— (2.00)(1.33)— (0.80)(3.33)(0.86)
Impairment of real estate – rental properties0.13 
(1)
— — — — 0.13 0.17 
Allocation to unvested restricted stock awards
(0.01)0.01 — — — (0.01)(0.04)
Funds from operations per share attributable to Alexandria’s common stockholders – diluted
1.84 1.51 1.66 0.40 1.07 5.44 8.16 
Unrealized losses (gains) on non-real estate investments0.15 0.35 0.42 1.67 0.91 2.55 (0.30)
Significant realized gains on non-real estate investments— — — — — — (0.75)
Impairment of non-real estate investments0.12 
(1)
— — — — 0.13 
(1)
— 
Impairment of real estate0.03 0.24 — — — 0.27 0.18 
Loss on early extinguishment of debt
— — 0.02 — — 0.02 0.46 
Acceleration of stock compensation expense due to executive officer resignation— 0.04 — — — 0.04 — 
Allocation to unvested restricted stock awards
— (0.01)— (0.02)(0.01)(0.03)0.01 
Funds from operations per share attributable to Alexandria’s common stockholders – diluted, as adjusted
$2.14 $2.13 $2.10 $2.05 $1.97 $8.42 $7.76 
Weighted-average shares of common stock outstanding for calculation of:
Earnings per share – diluted165,393 161,554 161,412 158,198 154,307 161,659 147,460 
Funds from operations, diluted, per share165,393 161,554 161,412 158,209 154,307 161,659 147,460 
Funds from operations, diluted, as adjusted, per share165,393 161,554 161,412 158,209 154,307 161,659 147,460 

(1)Refer to footnotes on the previous page for additional details.

11








SUPPLEMENTAL
INFORMATION









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Company Profile
December 31, 2022
Alexandria Real Estate Equities, Inc. (NYSE: ARE), an S&P 500® company, is a best-in-class, mission-driven life science REIT making a positive and lasting impact on the world. As the pioneer of the life science real estate niche since its founding in 1994, Alexandria is the preeminent and longest-tenured owner, operator, and developer of collaborative life science, agtech, and technology campuses in AAA innovation cluster locations, including Greater Boston, the San Francisco Bay Area, New York City, San Diego, Seattle, Maryland, and Research Triangle. The trusted partner to approximately 1,000 tenants, Alexandria has a total market capitalization of $35.0 billion and an asset base in North America of 74.6 million SF as of December 31, 2022, which includes 41.8 million RSF of operating properties and 5.6 million RSF of Class A properties undergoing construction, 9.9 million RSF of near-term and intermediate-term development and redevelopment projects, and 17.3 million SF of future development projects. Alexandria has a longstanding and proven track record of developing Class A properties clustered in life science, agtech, and technology campuses that provide our innovative tenants with highly dynamic and collaborative environments that enhance their ability to successfully recruit and retain world-class talent and inspire productivity, efficiency, creativity, and success. Alexandria also provides strategic capital to transformative life science, agrifoodtech, climate innovation, and technology companies through our venture capital platform. We believe our unique business model and diligent underwriting ensure a high-quality and diverse tenant base that results in higher occupancy levels, longer lease terms, higher rental income, higher returns, and greater long-term asset value. For additional information on Alexandria, please visit www.are.com.

Tenant base

Alexandria is known for our high-quality and diverse tenant base, with 48% of our total annual rental revenue being generated from tenants that are investment-grade rated or publicly traded large cap companies. The quality, diversity, breadth, and depth of our significant relationships with our tenants provide Alexandria with high-quality and stable cash flows. Alexandria’s underwriting team and long-term industry relationships positively distinguish us from all other publicly traded REITs and real estate companies.

Executive and senior management team

Alexandria’s executive and senior management team has unique experience and expertise in creating, owning, and operating highly dynamic and collaborative campuses in key life science, agtech, and technology cluster locations that inspire innovation. From our development of high-quality, sustainable real estate to our ongoing cultivation of collaborative environments with unique amenities and events, the Alexandria team has a best-in-class reputation of excellence in our niche. Alexandria’s highly experienced management team also includes regional market directors with leading reputations and longstanding relationships within the life science, agtech, and technology communities in their respective innovation clusters. We believe that our expertise, experience, reputation, and key relationships in the real estate, life science, agtech, and technology sectors provide Alexandria significant competitive advantages in attracting new business opportunities.
Alexandria’s executive and senior management team consists of 60 individuals, averaging 24 years of real estate experience, including 12 years with Alexandria. Our executive management team alone averages 18 years with Alexandria.
EXECUTIVE MANAGEMENT TEAM
Joel S. MarcusPeter M. Moglia
Executive Chairman & FounderChief Executive Officer &
Co-Chief Investment Officer
Dean A. ShigenagaDaniel J. Ryan
President & Chief Financial OfficerCo-Chief Investment Officer & Regional Market Director – San Diego
Hunter L. KassJohn H. Cunningham
Executive Vice President – Regional Market Director – Greater BostonExecutive Vice President – Regional Market Director – New York City
Lawrence J. DiamondVincent R. Ciruzzi
Co-Chief Operating Officer & Regional Market Director – MarylandChief Development Officer
Joseph HakmanJackie B. Clem
Co-Chief Operating Officer &
Chief Strategic Transactions Officer
General Counsel & Secretary
Marc E. BindaAndres R. Gavinet
Executive Vice President –
Finance & Treasurer
Chief Accounting Officer
Gary D. DeanTerezia C. Nemeth
Executive Vice President –
Real Estate Legal Affairs
Executive Vice President – Regional Market Director – San Francisco
Bay Area
Onn C. LeeKristina A. Fukuzaki-Carlson
Executive Vice President –
Accounting
Executive Vice President –
Business Operations
Madeleine T. Alsbrook
Executive Vice President –
Talent Management
13

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Investor Information
December 31, 2022
Corporate Headquarters New York Stock Exchange Trading Symbol Information Requests
26 North Euclid Avenue Common stock: ARE Phone:(626) 578-0777
Pasadena, California 91101  Email:corporateinformation@are.com
   Website:www.are.com
Equity Research Coverage
Alexandria is currently covered by the following research analysts. This list may be incomplete and is subject to change as firms initiate or discontinue coverage of our company. Please note that any opinions, estimates, or forecasts regarding our historical or predicted performance made by these analysts are theirs alone and do not represent opinions, estimates, or forecasts of Alexandria or our management. Alexandria does not by our reference or distribution of the information below imply our endorsement of or concurrence with any opinions, estimates, or forecasts of these analysts. Interested persons may obtain copies of analysts’ reports on their own as we do not distribute these reports. Several of these firms may, from time to time, own our stock and/or hold other long or short positions in our stock and may provide compensated services to us.

Bank of America Merrill LynchCitigroup Global Markets Inc.JMP SecuritiesRBC Capital Markets
Jeff Spector / Joshua DennerleinNicholas Joseph / Michael GriffinAaron HechtMichael Carroll / Aditi Balachandran
(646) 855-1363 / (646) 855-1681(212) 816-1909 / (212) 816-5871(415) 835-3963(440) 715-2649 / (212) 428-6200
BTIG, LLCEvercore ISIJ.P. Morgan Securities LLCRobert W. Baird & Co. Incorporated
Tom Catherwood / John NickodemusSteve Sakwa / Jay PoskittAnthony Paolone / Ray ZhongDavid Rodgers / Nicholas Thillman
(212) 738-6140 / (212) 738-6050(212) 446-9462 / (212) 752-0886(212) 622-6682 / (212) 622-5411(216) 737-7341 / (414) 298-5053
CFRAGreen StreetMizuho Securities USA LLCSMBC Nikko Securities America, Inc.
Kenneth LeonDylan Burzinski / Michael Manos Vikram Malhotra / Georgi DinkovRichard Anderson / Jay Kornreich
(646) 517-2552(949) 640-8780 / (949) 640-8780(212) 282-3827 / (617) 352-1721(646) 521-2351 / (646) 424-3202
Fixed Income CoverageRating Agencies
Barclays Capital Inc.Stifel Financial Corp.Moody’s Investors Service S&P Global Ratings
Srinjoy Banerjee Thierry Perrein(212) 553-0376 Michael Souers
(212) 526-3521 (646) 376-5303 (212) 438-2508
J.P. Morgan Securities LLC
Mark Streeter / Ian Snyder
(212) 834-5086 / (212) 834-3798
14

Financial and Asset Base Highlights
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December 31, 2022
(Dollars in thousands, except per share amounts)
 
Three Months Ended (unless stated otherwise)
12/31/229/30/226/30/223/31/2212/31/21
Selected financial data from consolidated financial statements and related information
Rental revenues
$499,348 $496,146 $485,067 $469,537 $435,637 
Tenant recoveries
$166,326 $160,707 $155,892 $143,017 $139,019 
General and administrative expenses$42,992 $49,958 $43,397 $40,931 $41,654 
General and administrative expenses as a percentage of net operating income –
trailing 12 months
9.8%10.1%9.8%10.0%10.2%
Operating margin70%70%70%71%70%
Adjusted EBITDA margin
69%69%70%71%71%
Adjusted EBITDA – quarter annualized
$1,846,936 $1,810,764 $1,797,488 $1,734,956 $1,631,244 
Adjusted EBITDA – trailing 12 months
$1,797,536 $1,743,613 $1,680,335 $1,601,857 $1,517,838 
Net debt at end of period
$9,376,705 $9,736,627 $9,832,722 $9,514,256 $8,442,115 
Net debt and preferred stock to Adjusted EBITDA – quarter annualized5.1x5.4x5.5x5.5x5.2x
Net debt and preferred stock to Adjusted EBITDA – trailing 12 months5.2x5.6x5.9x5.9x5.6x
Total debt and preferred stock at end of period$10,159,762 $10,525,848 $10,271,406 $10,303,247 $8,791,866 
Gross assets at end of period$39,877,462 $38,516,844 $37,304,589 $36,795,922 $33,990,614 
Total debt and preferred stock to gross assets at end of period25%27%28%28%26%
Fixed-charge coverage ratio – quarter annualized
5.0x4.9x5.1x5.1x5.3x
Fixed-charge coverage ratio – trailing 12 months
5.0x5.1x5.1x5.1x5.0x
Unencumbered net operating income as a percentage of total net operating income
100%100%100%97%97%
Closing stock price at end of period
$145.67 $140.19 $145.03 $201.25 $222.96 
Common shares outstanding (in thousands) at end of period
170,748 162,620 161,456 161,408 158,044 
Total equity capitalization at end of period
$24,872,919 $22,797,633 $23,415,970 $32,483,420 $35,237,463 
Total market capitalization at end of period
$35,032,681 $33,323,481 $33,687,376 $42,786,667 $44,029,329 
Dividend per share – quarter/annualized
$1.21/$4.84$1.18/$4.72$1.18/$4.72$1.15/$4.60$1.15/$4.60
Dividend payout ratio for the quarter
58%56%56%57%60%
Dividend yield – annualized
3.3%3.4%3.3%2.3%2.1%
Amounts related to operating leases:
Operating lease liabilities at end of period$406,700 $409,030 $412,535 $405,818 $434,745 
Rent expense
$8,722 $8,502 $7,924 $7,718 $7,124 
Capitalized interest
$79,491 $73,189 $68,202 $57,763 $44,078 
Weighted-average interest rate for capitalization of interest during the period
3.65%3.55%3.56%3.26%3.22%

15

Financial and Asset Base Highlights (continued)
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December 31, 2022
(Dollars in thousands, except annual rental revenue per occupied RSF amounts)
 
Three Months Ended (unless stated otherwise)
12/31/229/30/226/30/223/31/2212/31/21
Amounts included in funds from operations and non-revenue-enhancing capital expenditures
Straight-line rent revenue
$24,185 $24,431 $27,362 $42,025 $25,942 
Amortization of acquired below-market leases
$20,125 $23,546 $16,760 $13,915 $15,737 
Straight-line rent expense on ground leases$487 $583 $354 $416 $301 
Stock compensation expense
$11,586 $17,786 $14,340 $14,028 $14,253 
Amortization of loan fees
$3,975 $3,235 $3,236 $3,103 $2,911 
Amortization of debt (discounts) premiums$(272)$(269)$(267)$424 $502 
Non-revenue-enhancing capital expenditures:
Building improvements
$4,128 $3,963 $4,199 $4,110 $4,027 
Tenant improvements and leasing commissions
$25,049 $48,960 $24,562 $27,791 $109,516 
Operating statistics and related information (at end of period)
Number of properties – North America
432 431 436 446 414 
RSF – North America (including development and redevelopment projects under construction)
47,371,259 46,690,943 46,934,653 47,364,067 43,670,737 
Total square feet – North America
74,566,128 74,450,918 74,087,636 74,185,859 66,970,705 
Annual rental revenue per occupied RSF – North America$51.75 $50.99 $50.80 $49.42 $48.65 
Occupancy of operating properties – North America94.8%94.3%94.6%94.7%94.0%
Occupancy of operating and redevelopment properties – North America89.4%88.6%89.0%88.9%88.5%
Weighted-average remaining lease term (in years)
7.17.27.17.37.5
Total leasing activity – RSF
2,000,322 1,662,069 2,279,758 2,463,438 4,094,174 
Lease renewals and re-leasing of space – change in average new rental rates over expiring rates:
Rental rate increases
26.0%27.1%45.4%32.2%35.9%
Rental rate increases (cash basis)19.6%22.6%33.9%16.5%22.9%
RSF (included in total leasing activity above)1,494,345 1,094,821 1,087,082 864,077 1,947,727 
Same property – percentage change over comparable quarter from prior year:
Net operating income increase4.7%5.1%7.5%7.6%5.0%
Net operating income increase (cash basis)10.9%10.6%10.2%7.3%7.5%
16

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High-Quality Client Base
December 31, 2022
Long-Duration and Stable Cash Flows From
High-Quality Tenants

Investment-Grade or
Publicly Traded Large Cap Tenants
REIT Industry-Leading
Tenant Client Base
48%
90%
of ARE’s Total Annual Rental Revenue(1)
Long-Duration Lease Terms
of ARE’s Top 20 Tenants
7.1 YearsAnnual Rental Revenue
Is From Investment-Grade
or Publicly Traded Large Cap Tenants(1)
Weighted-Average Remaining Term(2)

Refer to “Annual rental revenue” in the “Definitions and reconciliations” of this Supplemental Information for additional details about our methodology of calculating annual rental revenue from unconsolidated real estate joint ventures.

(1)Represents annual rental revenue in effect as of December 31, 2022.
(2)Based on total annual rental revenue in effect as of December 31, 2022.
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High-Quality and Diverse Client Base in AAA Locations
December 31, 2022
Industry Mix of Approximately 1,000 Tenants
AAA Locations
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Percentage of ARE’s Annual Rental Revenue(3)


Refer to “Annual rental revenue” in the “Definitions and reconciliations” of this Supplemental Information for additional details about our methodology of calculating annual rental revenue from unconsolidated real estate joint ventures.

(1)Represents annual rental revenue currently generated from space that is targeted for a future change in use, including 1.1% of total annual rental revenue that is generated from covered land play projects. The weighted-average remaining term of these leases is 5.2 years.
(2)Our other tenants, which aggregate 2.0% of our annual rental revenue, comprise technology, professional services, finance, telecommunications, and construction/real estate companies and less than 1.0% of retail-related tenants by annual rental revenue.
(3)Represents annual rental revenue in effect as of December 31, 2022.
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Occupancy
December 31, 2022
Solid Occupancy From Historically Strong Demand
for Class A Properties in AAA Locations


Solid Historical Occupancy(1)
Occupancy Across Key Locations
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96%
Over 10 Years

(1)Represents average occupancy of operating properties in North America as of each December 31 for the last 10 years.
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Key Operating Metrics
December 31, 2022
Historical Same Property
Net Operating Income Growth(1)
Favorable Lease Structure(3)
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Strategic Lease Structure by Owner and Operator of Collaborative
Life Science, Agtech, and Technology Campuses
Increasing cash flows
Percentage of leases containing
annual rent escalations
96%
Stable cash flows
Percentage of triple
net leases
93%
Lower capex burden
Percentage of leases providing for the
recapture of capital expenditures
93%
Historical Rental Rate Growth:
Renewed/Re-Leased Space
Margins(4)
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OperatingAdjusted EBITDA
70%69%
(1)Refer to “Same property performance” and “Definitions and reconciliations” of this Supplemental Information for additional details. “Definitions and reconciliations” contains the definition of “Net operating income” and its reconciliation from the most directly comparable financial measures presented in accordance with GAAP.
(2)Our 2022 same property growth outperformed our 10-year averages of 3.6% and 6.7% (cash basis) as a result of an increase in same property occupancy of 100 bps and early lease renewals that commenced in late 2021/early 2022.
(3)Percentages calculated based on annual rental revenue in effect as of December 31, 2022.
(4)Represents percentages for the three months ended December 31, 2022.
20

Same Property Performance
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December 31, 2022
(Dollars in thousands)
December 31, 2022December 31, 2022
Same Property Financial Data
Three Months EndedYear Ended
Same Property Statistical Data
Three Months EndedYear Ended
Percentage change over comparable period from prior year:
Number of same properties
306253
Net operating income increase
4.7%6.6%
Rentable square feet
31,099,21126,121,796
Net operating income increase (cash basis)
10.9%9.6%
Occupancy – current-period average
95.2%95.7%
Operating margin
69%70%
Occupancy – same-period prior-year average
94.9%94.7%

 Three Months Ended December 31,Year Ended December 31,
20222021$ Change% Change20222021$ Change% Change
Income from rentals:
Same properties$397,105 $375,258 $21,847 5.8 %$1,385,380 $1,289,246 $96,134 7.5 %
Non-same properties102,243 60,379 41,864 69.3 564,718 329,346 235,372 71.5 
Rental revenues499,348 435,637 63,711 14.6 1,950,098 1,618,592 331,506 20.5 
Same properties135,755 119,833 15,922 13.3 478,333 407,450 70,883 17.4 
Non-same properties30,571 19,186 11,385 59.3 147,609 82,207 65,402 79.6 
Tenant recoveries166,326 139,019 27,307 19.6 625,942 489,657 136,285 27.8 
Income from rentals665,674 574,656 91,018 15.8 2,576,040 2,108,249 467,791 22.2 
Same properties184 155 29 18.7 620 479 141 29.4 
Non-same properties4,423 2,112 2,311 109.4 12,302 5,422 6,880 126.9 
Other income4,607 2,267 2,340 103.2 12,922 5,901 7,021 119.0 
Same properties533,044 495,246 37,798 7.6 1,864,333 1,697,175 167,158 9.8 
Non-same properties137,237 81,677 55,560 68.0 724,629 416,975 307,654 73.8 
Total revenues670,281 576,923 93,358 16.2 2,588,962 2,114,150 474,812 22.5 
Same properties163,887 142,521 21,366 15.0 561,301 475,209 86,092 18.1 
Non-same properties40,465 33,196 7,269 21.9 221,852 148,346 73,506 49.6 
Rental operations204,352 175,717 28,635 16.3 783,153 623,555 159,598 25.6 
Same properties369,157 352,725 16,432 4.7 1,303,032 1,221,966 81,066 6.6 
Non-same properties96,772 48,481 48,291 99.6 502,777 268,629 234,148 87.2 
Net operating income$465,929 $401,206 $64,723 16.1 %$1,805,809 $1,490,595 $315,214 21.1 %
Net operating income – same properties
$369,157 $352,725 $16,432 4.7 %$1,303,032 $1,221,966 $81,066 6.6 %
Straight-line rent revenue (8,498)(24,362)15,864 (65.1)(54,991)(79,602)24,611 (30.9)
Amortization of acquired below-market leases(9,274)(11,492)2,218 (19.3)(26,224)(27,252)1,028 (3.8)
Net operating income – same properties (cash basis)
$351,385 $316,871 $34,514 10.9 %$1,221,817 $1,115,112 $106,705 9.6 %

Refer to “Same property comparisons” in the “Definitions and reconciliations” of this Supplemental Information for a reconciliation of same properties to total properties. “Definitions and reconciliations” also contains definitions of “Tenant recoveries” and “Net operating income” and their respective reconciliations from the most directly comparable financial measures presented in accordance with GAAP.
21

Leasing Activity
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December 31, 2022
(Dollars per RSF)
Three Months EndedYear EndedYear Ended
December 31, 2022December 31, 2022December 31, 2021
Including
Straight-Line Rent
Cash BasisIncluding
Straight-Line Rent
Cash BasisIncluding
Straight-Line Rent
Cash Basis
Leasing activity:
Renewed/re-leased space(1)
  
Rental rate changes
26.0%
(2)
19.6%
(2)
31.0%22.1%
(3)
37.9%22.6%
New rates
$35.59 $34.17 $50.37 $48.48 $59.00 $55.60 
Expiring rates
$28.24 $28.58 $38.44 $39.69 $42.80 $45.36 
RSF
1,494,345 4,540,325 4,614,040 
Tenant improvements/leasing commissions
$16.29 $27.83 $41.05 
Weighted-average lease term
5.2 years5.0 years6.3 years
Developed/redeveloped/previously vacant space leased(4)
New rates
$57.35 $44.03 $73.46 $64.04 $78.52 $69.42 
RSF
505,977 3,865,262 4,902,261 
Weighted-average lease term
6.1 years11.8 years11.2 years
Leasing activity summary (totals):
New rates
$41.10 $36.67 $60.98 $55.64 $69.05 $62.72 
RSF
2,000,322 8,405,587 
(3)(5)
9,516,301 
Weighted-average lease term
5.4 years8.1 years8.8 years
Lease expirations(1)
Expiring rates
$30.62 $31.01 $37.41 $38.06 $41.53 $43.70 
RSF2,048,061 6,572,286 5,747,192 


Leasing activity includes 100% of results for each property in which we have an investment in North America.

(1)Excludes month-to-month leases aggregating 266,292 RSF and 110,180 RSF as of December 31, 2022 and 2021, respectively.
(2)Includes rental rate increases related to two recently acquired office leases, including one lease subject to a fixed-rate renewal option and one full-building lease in a non-core submarket. Excluding these leases, rental rate increases for the three months ended December 31, 2022 were 36.8% and 31.4% (cash basis).
(3)Represents the second highest annual leasing volume and annual rental rate growth (cash basis) in Company history.
(4)Refer to “New Class A development and redevelopment properties: summary of pipeline” of this Supplemental Information for additional details on total project costs.
(5)During the year ended December 31, 2022, we granted tenant concessions/free rent averaging 2.1 months with respect to the 8,405,587 RSF leased. Approximately 63% of the leases executed during the year ended December 31, 2022 did not include concessions for free rent.
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Contractual Lease Expirations
December 31, 2022
YearRSFPercentage of
Occupied RSF
Annual Rental Revenue (per RSF)(1)
Percentage of Total
Annual Rental Revenue
2023
(2)
2,871,438 7.3 %$45.10 6.5 %
20244,341,944 11.1 %$46.70 10.2 %
20253,312,092 8.5 %$48.22 8.1 %
20262,628,988 6.7 %$50.79 6.7 %
20272,669,028 6.8 %$55.36 7.5 %
20284,160,778 10.6 %$51.51 10.8 %
20292,467,070 6.3 %$53.31 6.6 %
20302,766,240 7.1 %$58.03 8.1 %
20313,006,892 7.7 %$52.83 8.0 %
20321,298,945 3.3 %$56.91 3.7 %
Thereafter9,613,205 24.6 %$48.72 23.8 %

Market
2023 Contractual Lease Expirations (in RSF)
Annual Rental Revenue
(per RSF)(1)
2024 Contractual Lease Expirations (in RSF)
Annual Rental Revenue
(per RSF)(1)
LeasedNegotiating/
Anticipating
Targeted for
Future Development/
Redevelopment(3)
Remaining
Expiring
Leases(4)
Total(2)
LeasedNegotiating/
Anticipating
Targeted for Future
Development/
Redevelopment(3)
Remaining
Expiring Leases(4)
Total
Greater Boston61,091 83,346 323,110 428,905 896,452 $56.56 102,060 

5,881 122,465 

500,918 731,324 $73.74 
San Francisco Bay Area30,876 10,208 — 342,952 384,036 52.63 35,798 407,369 — 

592,252 1,035,419 50.33 
New York City— — — 88,372 88,372 N/A— — 349,947 5,645 355,592 N/A
San Diego184,287 124,745 — 426,615 

735,647 33.50 — — 

580,021 394,852 974,873 31.10 
Seattle14,979 8,167 18,680 266,038 307,864 27.22 — 267,350 50,552 415,503 733,405 35.04 
Maryland6,674 115,454 — 131,735 253,863 35.41 — 3,555 — 

62,016 65,571 25.15 
Research Triangle81,956 15,043 — 77,286 174,285 33.08 15,519 — — 194,008 209,527 52.01 
Texas— — — — — — — — 126,034 72,938 198,972 33.91 
Canada13,321 — — 2,484 15,805 28.89 — — — 6,786 6,786 24.38 
Non-cluster/other markets— — — 15,114 15,114 41.42 — — — 30,475 30,475 65.74 
Total393,184 356,963 341,790 1,779,501 2,871,438 $45.10 153,377 684,155 1,229,019 2,275,393 

4,341,944 $46.70 
Percentage of expiring leases
14 %12 %12 %62 %100 %%16 %28 %52 %100 %

(1)Represents amounts in effect as of December 31, 2022.
(2)Excludes month-to-month leases aggregating 266,292 RSF as of December 31, 2022.
(3)Represents RSF targeted for future development or redevelopment upon expiration of existing in-place leases primarily related to recently acquired properties with an average contractual lease expiration date of January 7, 2023 and July 13, 2024 for 2023 and 2024, respectively, weighted by annual rental revenue. Refer to “Investments in real estate” in the “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(4)The largest remaining contractual expiration for 2023 and 2024 is 108,020 RSF in our Bothell submarket and 98,808 RSF in our Mission Bay submarket, respectively.

23

Top 20 Tenants
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December 31, 2022
(Dollars in thousands, except average market cap amounts)
90% of Top 20 Tenants Annual Rental Revenue Is From Investment-Grade
or Publicly Traded Large Cap Tenants(1)

Tenant
Remaining Lease Term(1) (in years)
Aggregate
RSF
Annual Rental Revenue(1)
Percentage of Aggregate Annual Rental Revenue(1)
Investment-Grade
Credit Ratings
Average Market Cap(1)
(in billions)
Moody’sS&P
1Bristol-Myers Squibb Company4.3 962,439 $69,870 3.5 %A2A+$156.1 
2Moderna, Inc.13.8 908,340 51,926 2.6 $62.1 
3Eli Lilly and Company6.2 743,267 49,890 2.5 A2A+$292.5 
4Takeda Pharmaceutical Company Limited7.0 549,760 37,399 1.9 Baa2BBB+$45.0 
5Illumina, Inc.7.6 891,495 36,204 1.8 Baa3BBB$40.2 
6Sanofi7.6 434,648 34,104 1.7 A1AA$122.2 
7
2seventy bio, Inc.(2)
10.7 312,805 33,617 1.7 $0.5 
8Novartis AG5.6 447,831 30,749 1.5 A1AA-$206.3 
9TIBCO Software, Inc.4.2 
(3)
292,013 28,537 1.4 $— 
10Uber Technologies, Inc.59.7 
(4)
1,009,188 27,704 1.4 $57.7 
11Roche6.5 417,011 27,188 1.4 Aa2AA$290.6 
12Amgen Inc.3.5 503,832 24,680 1.2 Baa1BBB+$133.2 
13Pfizer Inc.1.7 416,996 22,376 1.1 A1A+$280.1 
14Massachusetts Institute of Technology6.1 257,626 21,438 1.1 AaaAAA$— 
15Harvard University2.0 
(3)
286,580 20,086 1.0 AaaAAA$— 
16Boston Children’s Hospital13.8 269,816 20,066 1.0 Aa2AA$— 
17United States Government7.3 315,908 19,660 1.0 AaaAA+$— 
18New York University8.9 203,500 19,241 1.0 Aa1AA+$— 
19Merck & Co., Inc.11.3 300,930 18,913 0.9 A1A+$227.3 
20AstraZeneca PLC3.8 348,363 18,641 0.9 A3A$195.1 
Total/weighted-average
9.4 
(4)
9,872,348 $612,289 30.6 %

(1)Based on total annual rental revenue in effect as of December 31, 2022. Represents the percentage of our annual rental revenue generated by our top 20 tenants that are also investment-grade or publicly traded large cap tenants. Refer to “Annual rental revenue” and “Investment-grade or publicly traded large cap tenants” in the “Definitions and reconciliations” of this Supplemental Information for additional details about our methodology of calculating annual rental revenue from unconsolidated real estate joint ventures and average market capitalization, respectively.
(2)Represents two leases in our Greater Boston and Seattle markets with in-place cash rents that are 20%–25% below current market. As of September 30, 2022, 2seventy bio, Inc. held $127.0 million of cash and cash equivalents.
(3)Includes leases at recently acquired properties with future development and redevelopment opportunities. The leases with these tenants were in place when we acquired the properties.
(4)Includes (i) ground leases for land at 1455 and 1515 Third Street (two buildings aggregating 422,980 RSF) and (ii) leases at 1655 and 1725 Third Street (two buildings aggregating 586,208 RSF) owned by our unconsolidated real estate joint venture in which we have an ownership interest of 10%. Annual rental revenue is presented using 100% of the annual rental revenue from our consolidated properties and our share of annual rental revenue from our unconsolidated real estate joint ventures. Refer to footnote 1 for additional details. Excluding the ground leases, the weighted-average remaining lease term for our top 20 tenants was 7.1 years as of December 31, 2022.
24

Summary of Properties and Occupancy
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December 31, 2022
(Dollars in thousands, except per RSF amounts)

Summary of properties
Market
RSFNumber of PropertiesAnnual Rental Revenue
OperatingDevelopmentRedevelopmentTotal% of TotalTotal% of TotalPer RSF
Greater Boston
11,450,547 1,546,965 1,200,173 14,197,685 30 %84 $731,010 36 %$67.58 
San Francisco Bay Area8,100,245 443,388 300,010 8,843,643 19 67 452,191 23 61.88 
New York City
1,270,019 — — 1,270,019 97,413 83.14 
San Diego
8,099,957 254,771 — 8,354,728 18 94 330,713 16 42.79 
Seattle
2,814,446 311,631 213,976 3,340,053 46 109,029 39.95 
Maryland
3,459,475 282,000 91,134 3,832,609 50 115,347 35.12 
Research Triangle
3,596,979 268,038 376,871 4,241,888 42 99,055 29.31 
Texas1,724,585 — 201,499 1,926,084 15 45,785 29.11 
Canada
577,225 — 107,081 684,306 9,868 21.15 
Non-cluster/other markets382,960 — — 382,960 11 14,554 50.70 
Properties held for sale
297,284 — — 297,284 — 10 
(1)
2,476 — N/A
North America41,773,722 3,106,793 2,490,744 47,371,259 100 %432 $2,007,441 100 %$51.75 
5,597,537
(1)Represents properties held for sale in three submarkets, including eight contiguous properties aggregating 128,870 RSF in a non-core submarket.

Summary of occupancy
 Operating PropertiesOperating and Redevelopment Properties
Market12/31/229/30/2212/31/2112/31/229/30/2212/31/21
Greater Boston94.5 %94.4 %95.2 %85.5 %84.7 %83.2 %
San Francisco Bay Area96.7 96.2 93.0 93.3 92.8 92.6 
New York City92.3 96.5 98.4 92.3 92.3 91.0 
San Diego95.4 95.2 93.1 95.4 95.2 91.7 
Seattle97.0 97.1 95.6 90.1 90.2 88.5 
Maryland95.8 95.4 99.8 93.3 92.3 96.0 
Research Triangle94.0 93.5 94.6 85.0 84.5 86.1 
Texas91.2 78.4 N/A81.6 69.9 N/A
Subtotal95.1 94.5 94.9 89.9 88.9 89.1 
Canada80.8 93.0 78.6 68.2 78.5 78.6 
Non-cluster/other markets75.0 75.0 75.1 75.0 75.0 75.1 
North America94.8 %94.3 %94.0 %89.4 %88.6 %88.5 %

25

Property Listing
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December 31, 2022
(Dollars in thousands)
Mega Campuses Encompass 68% of Our Operating Property RSF(1)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
Greater Boston
Cambridge/Inner Suburbs
Mega Campus: Alexandria Center® at Kendall Square
2,449,354 — 403,892 2,853,246 11$198,373 99.1 %85.1 %
50(2), 60(2), 75/125(2), 100(2), and 225(2) Binney Street, 215 First Street, 150 Second Street, 300 Third Street(2), 11 Hurley Street, One Rogers Street, and 100 Edwin H. Land Boulevard
Mega Campus: Alexandria Center® at One Kendall Square
903,777 462,100 — 1,365,877 1276,350 95.8 95.8 
One Kendall Square (Buildings 100, 200, 300, 400, 500, 600/700, 1400, 1800, and 2000), 325 and 399 Binney Street, and One Hampshire Street
Mega Campus: Alexandria Technology Square®
1,185,190 — — 1,185,190 7116,609 99.1 99.1 
100, 200, 300, 400, 500, 600, and 700 Technology Square
Mega Campus: The Arsenal on the Charles872,665 248,018 — 1,120,683 1350,582 96.2 96.2 
  311, 321, and 343 Arsenal Street, 300, 400, and 500 North Beacon Street,
     1, 2, 3, and 4 Kingsbury Avenue, and 100, 200, and 400 Talcott Avenue
Mega Campus: 480 Arsenal Way and 446, 458, 500, and 550 Arsenal Street533,327 — — 533,327 524,241 97.6 97.6 
99 Coolidge Avenue(2)
— 320,809 — 320,809 1— N/AN/A
640 Memorial Drive
242,477 — — 242,477 119,320 77.6 77.6 
780 and 790 Memorial Drive 99,658 — — 99,658 29,257 100.0 100.0 
Cambridge/Inner Suburbs
6,286,448 1,030,927 403,892 7,721,267 52494,732 97.3 91.4 
Fenway
Mega Campus: Alexandria Center® for Life Science – Fenway
1,267,572 170,043 — 1,437,615 294,904 92.9 92.9 
401 Park Drive and 201 Brookline Avenue(2)
Seaport Innovation District
5 and 15(2) Necco Street
95,400 345,995 — 441,395 24,414 86.6 86.6 
Mega Campus: 380 and 420 E Street195,506 — — 195,506 24,490 100.0 100.0 
Seaport Innovation District290,906 345,995 — 636,901 48,904 95.6 95.6 
Route 128
Mega Campus: 40, 50, and 60 Sylvan Road, 35 Gatehouse Drive, and 840 Winter Street638,651 — 342,412 981,063 538,439 100.0 65.1 
Mega Campus: One Moderna Way706,988 — — 706,988 429,059 100.0 100.0 
19, 225, and 235 Presidential Way585,022 — — 585,022 313,996 99.9 99.9 
275 Grove Street
509,702 — — 509,702 315,704 66.1 66.1 
225, 266, and 275 Second Avenue
329,005 — — 329,005 318,650 100.0 100.0 
100 Beaver Street
82,330 — — 82,330 15,262 100.0 100.0 
Route 1282,851,698 — 342,412 3,194,110 19121,110 93.9 83.8 
Other753,923 — 453,869 1,207,792 711,360 75.2 46.9 
Greater Boston
11,450,547 1,546,965 1,200,173 14,197,685 84$731,010 94.5 %85.5 %


(1)Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.
(2)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
26

Property Listing (continued)
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December 31, 2022
(Dollars in thousands)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
San Francisco Bay Area
Mission Bay
Mega Campus: Alexandria Center® for Science and Technology –
Mission Bay(1)
2,015,177 212,796 — 2,227,973 10$98,444 100.0 %100.0 %
1455(2), 1515(2), 1655, and 1725 Third Street, 409 and 499 Illinois Street, 1450, 1500, and 1700 Owens Street, and 455 Mission Bay Boulevard South
Mission Bay2,015,177 212,796 — 2,227,973 1098,444 100.0 100.0 
South San Francisco
Mega Campus: Alexandria Technology Center® – Gateway(1)
1,114,890 230,592 300,010 1,645,492 1260,385 92.6 73.0 
600(2), 601, 611, 630(2), 650(2), 651, 681, 685, 701, 751, 901(2), and 951(2)
Gateway Boulevard
Mega Campus: 213(1), 249, 259, 269, and 279 East Grand Avenue
919,704 — — 919,704 548,854 100.0 100.0 
Mega Campus: 1122 and 1150 El Camino Real725,172 — — 725,172 210,948 97.8 97.8 
Alexandria Center® for Life Science – South San Francisco
504,551 — — 504,551 337,153 100.0 100.0 
201 Haskins Way and 400 and 450 East Jamie Court
500 Forbes Boulevard(1)
155,685 — — 155,685 110,680 100.0 100.0 
849/863 Mitten Road/866 Malcolm Road
103,857 — — 103,857 14,834 100.0 100.0 
South San Francisco3,523,859 230,592 300,010 4,054,461 24172,854 97.2 89.6 
Greater Stanford
Mega Campus: Alexandria Center® for Life Science – San Carlos
739,192 — — 739,192 949,953 97.3 97.3 
825, 835, 960, and 1501-1599 Industrial Road
Alexandria Stanford Life Science District
703,742 — — 703,742 965,349 100.0 100.0 
3160, 3165, 3170, and 3181 Porter Drive and 3301, 3303, 3305, 3307, and 3330 Hillview Avenue
3875 Fabian Way228,000 — — 228,000 19,402 100.0 100.0 
3412, 3420, 3440, 3450, and 3460 Hillview Avenue338,751 — — 338,751 520,926 73.8 73.8 
2100, 2200, 2300, and 2400 Geng Road196,276 — — 196,276 48,448 70.7 70.7 
2475 and 2625/2627/2631 Hanover Street and 1450 Page Mill Road194,503 — — 194,503 318,040 100.0 100.0 
2425 Garcia Avenue/2400/2450 Bayshore Parkway
99,208 — — 99,208 14,257 100.0 100.0 
3350 West Bayshore Road
61,537 — — 61,537 14,518 99.9 99.9 
Greater Stanford2,561,209 — — 2,561,209 33180,893 93.5 93.5 
San Francisco Bay Area8,100,245 443,388 300,010 8,843,643 67452,191 96.7 93.3 
New York City
New York City
Mega Campus: Alexandria Center® for Life Science – New York City
740,972 — — 740,972 371,779 94.2 94.2 
430 and 450 East 29th Street
219 East 42nd Street
349,947 — — 349,947 118,638 100.0 100.0 
Alexandria Center® for Life Science – Long Island City
179,100 — — 179,100 16,996 69.1 69.1 
30-02 48th Avenue
New York City
1,270,019   1,270,019 5$97,413 92.3 %92.3 %

Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
(2)We own 100% of this property.
27

Property Listing (continued)
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December 31, 2022
(Dollars in thousands)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
San Diego
Torrey Pines
Mega Campus: One Alexandria Square and One Alexandria North
904,883 — — 904,883 10$53,236 99.9 %99.9 %
3115 and 3215(1) Merryfield Row, 3010, 3013, and 3033 Science Park Road, 10975 and 11119 North Torrey Pines Road, 10975, 10995, and 10996 Torreyana Road, and 3545 Cray Court
ARE Torrey Ridge
298,863 — — 298,863 315,747 100.0 100.0 
10578, 10618, and 10628 Science Center Drive
ARE Nautilus
213,900 — — 213,900 411,297 88.1 88.1 
3530 and 3550 John Hopkins Court and 3535 and 3565 General Atomics Court
Torrey Pines1,417,646 — — 1,417,646 1780,280 98.2 98.2 
University Town Center
Mega Campus: Campus Point by Alexandria(1)
1,662,342 — — 1,662,342 1175,970 97.7 97.7 
9880(2), 10010(2), 10140(2), 10210, 10260, 10290, and 10300 Campus Point Drive and 4161, 4224, 4242, and 4275(2) Campus Point Court
Mega Campus: 5200 Illumina Way(1)
792,687 — — 792,687 629,978 100.0 100.0 
Mega Campus: University District415,462 — — 415,462 718,641 100.0 100.0 
9625 Towne Centre Drive(1), 4755, 4757, and 4767 Nexus Center Drive, 4796 Executive Drive, 8505 Costa Verde Boulevard, and 4260 Nobel Drive
University Town Center2,870,491 — — 2,870,491 24124,589 98.7 98.7 
Sorrento Mesa
Mega Campus: SD Tech by Alexandria(1)
1,059,754 254,771 — 1,314,525 1543,387 94.1 94.1 
9605, 9645, 9675, 9685, 9725, 9735, 9808, 9855, and 9868 Scranton Road, 5505 Morehouse Drive(2), and 10055, 10065, 10075, 10121(2), and 10151(2) Barnes Canyon Road
Mega Campus: Sequence District by Alexandria803,319 — — 803,319 723,993 89.0 89.0 
6260, 6290, 6310, 6340, 6350, 6420, and 6450 Sequence Drive
Pacific Technology Park(1)
544,352 — — 544,352 58,106 88.6 88.6 
9389, 9393, 9401, 9455, and 9477 Waples Street
Summers Ridge Science Park(1)
316,531 — — 316,531 411,521 100.0 100.0 
9965, 9975, 9985, and 9995 Summers Ridge Road
Scripps Science Park by Alexandria244,083 — — 244,083 310,226 100.0 100.0 
10102 Hoyt Park Drive and 10256 and 10260 Meanley Drive
ARE Portola
101,857 — — 101,857 33,880 100.0 100.0 
6175, 6225, and 6275 Nancy Ridge Drive
5810/5820 Nancy Ridge Drive
83,354 — — 83,354 13,853 100.0 100.0 
9877 Waples Street63,774 — — 63,774 12,521 100.0 100.0 
5871 Oberlin Drive
33,842 — — 33,842 11,772 100.0 100.0 
Sorrento Mesa3,250,866 254,771 — 3,505,637 40$109,259 93.5 %93.5 %

Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
(2)We own 100% of this property.
28

Property Listing (continued)
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December 31, 2022
(Dollars in thousands)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
San Diego (continued)
Sorrento Valley
3911, 3931, 3985, 4025, and 4045 Sorrento Valley Boulevard131,698 — — 131,698 5$3,930 75.7 %75.7 %
11025, 11035, 11045, 11055, 11065, and 11075 Roselle Street
119,513 — — 119,513 64,312 100.0 100.0 
Sorrento Valley251,211 — — 251,211 118,242 87.3 87.3 
Other309,743 — — 309,743 28,343 79.5 79.5 
San Diego
8,099,957 254,771  8,354,728 94330,713 95.4 95.4 
Seattle
Lake Union
Mega Campus: The Eastlake Life Science Campus by Alexandria937,290 311,631 — 1,248,921 956,305 97.4 97.4 
1150, 1165, 1201(1), 1208(1), 1551, and 1616 Eastlake Avenue East, 188 and 199(1) East Blaine Street, and 1600 Fairview Avenue East
Mega Campus: Alexandria Center® for Life Science – South Lake Union
400(1) and 601 Dexter Avenue North
309,434 — — 309,434 215,494 100.0 100.0 
219 Terry Avenue North
30,705 — — 30,705 11,935 100.0 100.0 
Lake Union1,277,429 311,631 — 1,589,060 1273,734 98.1 98.1 
SoDo
830 4th Avenue South42,380 — — 42,380 11,691 70.5 70.5 
Elliott Bay
3000/3018 Western Avenue
47,746 — — 47,746 13,147 100.0 100.0 
410 West Harrison Street and 410 Elliott Avenue West
36,849 — — 36,849 21,613 100.0 100.0 
Elliott Bay84,595 — — 84,595 34,760 100.0 100.0 
Bothell
Mega Campus: Alexandria Center® for Advanced Technologies – Canyon Park
1,060,958 — — 1,060,958 2223,042 96.7 96.7 
22121 and 22125 17th Avenue Southeast, 22021, 22025, 22026, 22030, 22118, and 22122 20th Avenue Southeast, 22333, 22422, 22515, 22522, 22722, and 22745 29th Drive Southeast, 21540, 22213, and 22309 30th Drive Southeast, and 1629, 1631, 1725, 1916, and 1930 220th Street Southeast
Alexandria Center® for Advanced Technologies – Monte Villa Parkway
246,647 — 213,976 460,623 64,657 97.3 52.1 
3301, 3303, 3305, 3307, 3555, and 3755 Monte Villa Parkway
Bothell1,307,605 — 213,976 1,521,581 2827,699 96.8 83.2 
Other102,437 — — 102,437 21,145 93.5 93.5 
Seattle
2,814,446 311,631 213,976 3,340,053 46$109,029 97.0 %90.1 %


Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
29

Property Listing (continued)
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December 31, 2022
(Dollars in thousands)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
Maryland
Rockville
Mega Campus: Alexandria Center® for Life Science – Shady Grove
1,090,102 282,000 61,322 1,433,424 19$49,353 99.0 %93.7 %
9601, 9603, 9605, 9704, 9708, 9712, 9714, 9800, 9804, 9808, 9900, and 9950 Medical Center Drive, 14920 and 15010 Broschart Road, 9920 Belward Campus Drive, and 9810 Darnestown Road
1330 Piccard Drive
131,511 — — 131,511 14,034 100.0 100.0 
1405 and 1450(1) Research Boulevard
114,849 — — 114,849 22,631 62.8 62.8 
1500 and 1550 East Gude Drive
91,359 — — 91,359 21,844 100.0 100.0 
5 Research Place
63,852 — — 63,852 12,999 100.0 100.0 
5 Research Court
51,520 — — 51,520 11,788 100.0 100.0 
12301 Parklawn Drive
49,185 — — 49,185 11,530 100.0 100.0 
Rockville1,592,378 282,000 61,322 1,935,700 2764,179 96.6 93.0 
Gaithersburg
Alexandria Technology Center® – Gaithersburg I
613,438 — — 613,438 917,359 98.6 98.6 
9, 25, 35, 45, 50, and 55 West Watkins Mill Road and 910, 930, and 940 Clopper Road
Alexandria Technology Center® – Gaithersburg II
486,324 — — 486,324 717,632 96.5 96.5 
700, 704, and 708 Quince Orchard Road and 19, 20, 21, and 22 Firstfield Road
20400 Century Boulevard50,738 — 29,812 80,550 12,035 100.0 63.0 
401 Professional Drive
63,154 — — 63,154 11,918 100.0 100.0 
950 Wind River Lane
50,000 — — 50,000 11,234 100.0 100.0 
620 Professional Drive
27,950 — — 27,950 11,207 100.0 100.0 
Gaithersburg1,291,604 — 29,812 1,321,416 2041,385 98.0 95.8 
Beltsville
8000/9000/10000 Virginia Manor Road 191,884 — — 191,884 12,951 100.0 100.0 
101 West Dickman Street(1)
135,423 — — 135,423 1705 51.1 51.1 
Beltsville327,307 — — 327,307 23,656 79.8 79.8 
Northern Virginia
14225 Newbrook Drive248,186 — — 248,186 16,127 100.0 100.0 
Maryland
3,459,475 282,000 91,134 3,832,609 50$115,347 95.8 %93.3 %

Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
30

Property Listing (continued)
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December 31, 2022
(Dollars in thousands)
Market / Submarket / Address
RSF
Number of PropertiesAnnual Rental Revenue
Occupancy Percentage
OperatingOperating and Redevelopment
OperatingDevelopmentRedevelopmentTotal
Research Triangle
Research Triangle
Mega Campus: Alexandria Center® for Life Science – Durham
1,880,185 — 376,871 2,257,056 16$37,681 93.2 %77.6 %
6, 8, 10, 12, 14, 40, 41, 42, and 65 Moore Drive, 21, 25, 27, 29, and 31
Alexandria Way, 2400 Ellis Road, and 14 TW Alexander Drive
Mega Campus: Alexandria Center® for Advanced Technologies – Research Triangle
350,267 180,000 — 530,267 515,869 93.9 93.9 
4, 6, 8, 10, and 12 Davis Drive
Alexandria Center® for AgTech
342,881 — — 342,881 215,315 94.1 94.1 
5 and 9 Laboratory Drive
104, 108, 110, 112, and 114 TW Alexander Drive227,902 — — 227,902 57,375 94.3 94.3 
Alexandria Technology Center® – Alston
186,870 — — 186,870 34,009 94.1 94.1 
100, 800, and 801 Capitola Drive
6040 George Watts Hill Drive61,547 88,038 — 149,585 22,148 100.0 100.0 
Alexandria Innovation Center® – Research Triangle
136,729 — — 136,729 33,963 97.2 97.2 
7010, 7020, and 7030 Kit Creek Road
7 Triangle Drive
104,531 — — 104,531 14,422 100.0 100.0 
2525 East NC Highway 54
82,996 — — 82,996 13,651 100.0 100.0 
407 Davis Drive
81,956 — — 81,956 11,644 100.0 100.0 
601 Keystone Park Drive
77,395 — — 77,395 11,072 74.3 74.3 
5 Triangle Drive
32,120 — — 32,120 11,147 100.0 100.0 
6101 Quadrangle Drive
31,600 — — 31,600 1759 100.0 100.0 
Research Triangle
3,596,979 268,038 376,871 4,241,888 4299,055 94.0 85.0 
Texas
Austin
Mega Campus: Intersection Campus1,525,613 — — 1,525,613 1239,039 90.0 90.0 
1001 Trinity Street and 1020 Red River Street198,972 — — 198,972 26,746 100.0 100.0 
Austin1,724,585 — — 1,724,585 1445,785 90.0 90.0 
Greater Houston
8800 Technology Forest Place— — 201,499 201,499 1— N/A— 
Texas1,724,585  201,499 1,926,084 1545,785 91.2 81.6 
Canada
577,225 — 107,081 684,306 89,868 80.8 68.2 
Non-cluster/other markets382,960 — — 382,960 1114,554 75.0 75.0 
North America, excluding properties held for sale
41,476,438 3,106,793 2,490,744 47,073,975 4222,004,965 94.8 %89.4 %
Properties held for sale
297,284 — — 297,284 102,476 34.0 %34.0 %
Total North America
41,773,722 3,106,793 2,490,744 47,371,259 432$2,007,441 

Refer to “New Class A development and redevelopment properties: summary of pipeline” and to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

31

Investments in Real Estate
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December 31, 2022
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Refer to “Net operating income” in the “Definitions and reconciliations” of our Supplemental Information for additional details and its reconciliation from the most directly comparable financial measures presented in accordance with GAAP.
(1)As of December 31, 2022. Represents projects under construction aggregating 5.6 million RSF and seven near-term projects aggregating 2.0 million RSF expected to commence construction during the next four quarters.
32

Investments in Real Estate
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December 31, 2022
(Dollars in thousands)



Development and Redevelopment
OperatingUnder ConstructionNear
Term
Intermediate
Term
FutureSubtotalTotal
Investments in real estate
Gross book value as of December 31, 2022(1)
$25,568,121 $4,055,353 $1,738,913 $918,528 $2,002,541 $8,715,335 $34,283,456 
Square footage
Operating41,773,722 — — — — — 41,773,722 
New Class A development and redevelopment properties— 5,597,537 6,248,830 
(2)
4,780,268 20,716,308 37,342,943 37,342,943 
Value-creation square feet currently included in rental properties(3)
— — (656,378)(434,776)(3,459,383)(4,550,537)(4,550,537)
Total square footage
41,773,722 5,597,537 5,592,452 4,345,492 17,256,925 32,792,406 74,566,128 


(1)Balances exclude accumulated depreciation and our share of the cost basis associated with our properties held by our unconsolidated real estate joint ventures, which is classified as investments in unconsolidated real estate joint ventures in our consolidated balance sheets. Refer to “Investments in real estate” in the “Definitions and reconciliations” of this Supplemental Information for reconciliation detail of investments in real estate.
(2)Includes 2.0 million RSF currently 88% leased and expected to commence construction in the next four quarters. Refer to “New Class A development and redevelopment properties: current projects” for additional details.
(3)Refer to “Investments in real estate” in the “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
33

New Class A Development and Redevelopment Properties: Recent Deliveries
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December 31, 2022
The Arsenal on the Charles201 Brookline Avenue201 Haskins Way825 and 835 Industrial Road
Greater Boston/
Cambridge/Inner Suburbs
Greater Boston/
Fenway
San Francisco Bay Area/
South San Francisco
San Francisco Bay Area/
Greater Stanford
387,678 RSF340,073 RSF323,190 RSF526,129 RSF
96% Occupancy100% Occupancy100% Occupancy100% Occupancy
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3160 Porter Drive30-02 48th Avenue3115 Merryfield Row10055 Barnes Canyon Road
San Francisco Bay Area/
Greater Stanford
New York City/New York CitySan Diego/Torrey PinesSan Diego/Sorrento Mesa
92,300 RSF137,187 RSF146,456 RSF195,435 RSF
83% Occupancy69% Occupancy93% Occupancy100% Occupancy
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34

New Class A Development and Redevelopment Properties: Recent Deliveries (continued)
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December 31, 2022
10102 Hoyt Park Drive5505 Morehouse Drive9601 and 9603 Medical Center Drive9950 Medical Center Drive
San Diego/Sorrento MesaSan Diego/Sorrento MesaMaryland/RockvilleMaryland/Rockville
144,113 RSF79,945 RSF34,589 RSF84,264 RSF
100% Occupancy100% Occupancy100% Occupancy100% Occupancy
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20400 Century Boulevard
2400 Ellis Road, 40 and 41 Moore Drive, and
14 TW Alexander Drive(1)
5 and 9 Laboratory Drive(2)
8 and 10 Davis Drive(3)
Maryland/GaithersburgResearch Triangle/Research TriangleResearch Triangle/Research TriangleResearch Triangle/Research Triangle
50,738 RSF326,445 RSF342,881 RSF250,000 RSF
100% Occupancy100% Occupancy94% Occupancy94% Occupancy
q422centuryblvd20400.jpg
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q422lab9v1.jpg
q422davis10.jpg
(1)Image represents 2400 Ellis Road in our Alexandria Center® for Life Science – Durham mega campus.
(2)Image represents 9 Laboratory Drive in our Alexandria Center® for AgTech campus.
(3)Image represents 10 Davis Drive in our Alexandria Center® for Advanced Technologies – Research Triangle mega campus.
35

New Class A Development and Redevelopment Properties: Recent Deliveries (continued)
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December 31, 2022
(Dollars in thousands)
Deliveries in 4Q22 commenced $28 million in annual net operating income
Property/Market/SubmarketOur Ownership InterestRSF Placed in Service
Occupancy Percentage(2)
Total ProjectUnlevered Yields
4Q22 Delivery Date(1)
Prior to 1/1/221Q222Q223Q224Q22TotalInitial StabilizedInitial Stabilized (Cash Basis)
RSFInvestment
Development projects
201 Brookline Avenue/Greater Boston/Fenway11/3/2298.8%— — — 261,990 78,083 340,073 100%510,116 $734,000 7.2 %6.2 %
201 Haskins Way/San Francisco Bay Area/South San FranciscoN/A100%270,879 52,311 — — — 323,190 100%323,190 367,000 6.3 6.0 
825 and 835 Industrial Road/San Francisco Bay Area/Greater StanfordN/A100%476,211 49,918 — — — 526,129 100%526,129 631,000 6.7 6.5 
3115 Merryfield Row/San Diego/Torrey PinesN/A100%— 146,456 — — — 146,456 93%146,456 150,000 6.3 6.2 
10055 Barnes Canyon Road/San Diego/Sorrento Mesa11/21/2250.0%— — 110,454 9,473 75,508 195,435 100%195,435 189,000 7.2 6.7 
10102 Hoyt Park Drive/San Diego/Sorrento Mesa11/15/22100%— — — — 144,113 144,113 100%144,113 114,000 7.4 6.8 
9950 Medical Center Drive/Maryland/RockvilleN/A100%— 84,264 — — — 84,264 100%84,264 57,000 8.9 7.8 
5 and 9 Laboratory Drive/Research Triangle/Research Triangle12/21/22100%267,509 11,211 — 1,485 62,676 342,881 94%342,881 221,000 6.9 7.0 
8 and 10 Davis Drive/Research Triangle/ Research TriangleN/A100%65,247 44,980 139,773 — — 250,000 94%250,000 159,000 7.6 7.3 
Redevelopment projects
The Arsenal on the Charles/Greater Boston/Cambridge/Inner Suburbs12/31/22100%137,111 99,796 50,663 43,351 56,757 387,678 96%872,665 834,000 6.3 5.6 
3160 Porter Drive/San Francisco Bay Area/Greater StanfordN/A100%57,696 34,604 — — — 92,300 83%92,300 117,000 4.6 4.6 
30-02 48th Avenue/New York City/New York City12/31/22100%41,848 11,092 18,689 10,197 55,361 137,187 69%179,100 248,000 5.8 6.0 
5505 Morehouse Drive/San Diego/Sorrento MesaN/A100%28,324 — 51,621 — — 79,945 100%79,945 68,000 7.1 7.2 
9601 and 9603 Medical Center Drive/Maryland/Rockville11/17/22100%17,378 — — — 17,211 34,589 100%95,911 54,000 8.4 7.1 
20400 Century Boulevard/Maryland/Gaithersburg10/17/22100%— 32,033 4,194 6,465 8,046 50,738 100%80,550 35,000 8.5 8.6 
2400 Ellis Road, 40 and 41 Moore Drive, and 14 TW Alexander Drive/Research Triangle/Research TriangleN/A100%326,445 — — — — 326,445 100%703,316 337,000 7.5 6.7 
Weighted average/total11/18/221,688,648 566,665 375,394 332,961 497,755 3,461,423 4,626,371 $4,315,000 6.8 %6.3 %
Refer to “New Class A development and redevelopment properties: current projects” of this Supplemental Information for details on the RSF in service and under construction, if applicable.

(1)Represents the average delivery date for deliveries that occurred during the current quarter, weighted by annual rental revenue.
(2)Relates to total operating RSF placed in service as of the most recent delivery.
36

New Class A Development and Redevelopment Properties: Current Projects
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December 31, 2022

325 Binney StreetOne Rogers Street99 Coolidge Avenue
500 North Beacon Street and
4 Kingsbury Avenue(1)
201 Brookline Avenue
Greater Boston/
Cambridge/Inner Suburbs
Greater Boston/
Cambridge/Inner Suburbs
Greater Boston/
Cambridge/Inner Suburbs
Greater Boston/
Cambridge/Inner Suburbs
Greater Boston/Fenway
462,100 RSF403,892 RSF320,809 RSF248,018 RSF170,043 RSF
100% Leased100% Leased36% Leased/Negotiating85% Leased/Negotiating98% Leased/Negotiating
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15 Necco Street
40, 50, and 60 Sylvan Road(2)
1450 Owens Street651 Gateway Boulevard751 Gateway Boulevard
Greater Boston/
Seaport Innovation District
Greater Boston/Route 128San Francisco Bay Area/
Mission Bay
San Francisco Bay Area/
South San Francisco
San Francisco Bay Area/
South San Francisco
345,995 RSF202,428 RSF212,796 RSF300,010 RSF230,592 RSF
97% Leased/Negotiating61% Leased/Negotiating—% Leased/Negotiating7% Leased/Negotiating100% Leased
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(1)Image represents 500 North Beacon Street in our The Arsenal on the Charles mega campus.
(2)Image represents 50 Sylvan Road.
37

New Class A Development and Redevelopment Properties: Current Projects (continued)
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December 31, 2022
10075 Barnes Canyon Road1150 Eastlake Avenue East9810 Darnestown Road9808 Medical Center Drive
San Diego/Sorrento MesaSeattle/Lake UnionMaryland/RockvilleMaryland/Rockville
254,771 RSF311,631 RSF192,000 RSF90,000 RSF
—% Leased/Negotiating89% Leased/Negotiating100% Leased73% Leased/Negotiating
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9601 and 9603 Medical Center Drive
2400 Ellis Road, 40 and 41 Moore Drive, and 14 TW Alexander Drive(1)
4 Davis Drive6040 George Watts Hill Drive,
Phase II
Maryland/RockvilleResearch Triangle/Research TriangleResearch Triangle/Research TriangleResearch Triangle/Research Triangle
61,322 RSF376,871 RSF180,000 RSF88,038 RSF
100% Leased86% Leased/Negotiating6% Leased/Negotiating100% Leased
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(1)Image represents 41 Moore Drive in our Alexandria Center® for Life Science – Durham mega campus.


38

New Class A Development and Redevelopment Properties: Current Projects (continued)
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December 31, 2022
Market
Property/Submarket
Square FootagePercentage
Occupancy(1)
Dev/RedevIn ServiceCIPTotalLeasedLeased/NegotiatingInitialStabilized
Under construction
Greater Boston
325 Binney Street/Cambridge/Inner SuburbsDev— 462,100 462,100 100 %100 %20232024
One Rogers Street/Cambridge/Inner SuburbsRedev4,367 403,892 408,259 100 100 20232023
99 Coolidge Avenue/Cambridge/Inner SuburbsDev— 320,809 320,809 36 36 20242025
500 North Beacon Street and 4 Kingsbury Avenue/Cambridge/Inner SuburbsDev— 248,018 248,018 85 85 20242025
201 Brookline Avenue/FenwayDev340,073 170,043 510,116 97 98 3Q222023
15 Necco Street/Seaport Innovation DistrictDev— 345,995 345,995 97 97 20242024
40, 50, and 60 Sylvan Road/Route 128Redev312,845 202,428 515,273 61 61 20232024
840 Winter Street/Route 128Redev28,230 139,984 168,214 100 100 20242024
OtherRedev— 453,869 453,869 — — 
(2)
20232025
San Francisco Bay Area
1450 Owens Street/Mission BayDev— 212,796 212,796 — — 
(2)
20242025
651 Gateway Boulevard/South San FranciscoRedev— 300,010 300,010 
(2)
20232025
751 Gateway Boulevard/South San FranciscoDev— 230,592 230,592 100 100 20232023
San Diego
10075 Barnes Canyon Road/Sorrento MesaDev— 254,771 254,771 — — 
(2)
20242025
Seattle
1150 Eastlake Avenue East/Lake UnionDev— 311,631 311,631 89 89 20232024
Alexandria Center® for Advanced Technologies – Monte Villa Parkway/Bothell
Redev246,647 213,976 460,623 84 84 20232024
Maryland
9810 Darnestown Road/RockvilleDev— 192,000 192,000 100 100 20242024
9808 Medical Center Drive/RockvilleDev— 90,000 90,000 29 73 20232024
9601 and 9603 Medical Center Drive/RockvilleRedev34,589 61,322 95,911 100 100 4Q212023
20400 Century Boulevard/GaithersburgRedev50,738 29,812 80,550 100 100 1Q222023
Research Triangle
2400 Ellis Road, 40 and 41 Moore Drive, and 14 TW Alexander Drive/
Research Triangle
Redev326,445 376,871 703,316 86 86 2Q212024
4 Davis Drive/Research TriangleDev— 180,000 180,000 — 
(2)
20232024
6040 George Watts Hill Drive, Phase II/Research TriangleDev— 88,038 88,038 100 100 20242024
Texas
8800 Technology Forest Place/Greater HoustonRedev— 201,499 201,499 23 23 20232024
Canada
CanadaRedev22,992 107,081 130,073 71 81 20232024
1,366,926 5,597,537 6,964,463 67 %68 %
(1)Initial occupancy dates are subject to leasing and/or market conditions. Multi-tenant projects may have occupancy by tenants over a period of time. Stabilized occupancy may vary depending on single tenancy versus multi-tenancy.
(2)This project is focused on demand from our existing tenants in our adjacent properties/campuses and will also address demand from other non-Alexandria properties/campuses.
39

New Class A Development and Redevelopment Properties: Current Projects (continued)
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December 31, 2022
Market
Property/Submarket
Square FootagePercentage
Dev/RedevIn ServiceCIPTotalLeasedLeased/Negotiating
Near-term projects expected to commence construction in the next four quarters
San Francisco Bay Area
230 Harriet Tubman Way/South San FranciscoDev— 285,346 285,346 100 %100 %
San Diego
11255 and 11355 North Torrey Pines Road/Torrey PinesDev— 309,094 309,094 100 100 
10931 and 10933 North Torrey Pines Road/Torrey PinesDev— 299,158 299,158 100 100 
Campus Point by Alexandria, Phase II/University Town CenterDev— 426,927 426,927 100 100 
Campus Point by Alexandria, Phase I/University Town CenterDev— 171,102 171,102 100 100 
Seattle
701 Dexter Avenue North/Lake UnionDev— 226,586 226,586 — — 
(1)
Maryland
9820 Darnestown Road/RockvilleDev— 250,000 250,000 100 100 
— 1,968,213 1,968,213 88 88 
Total1,366,926 7,565,750 8,932,676 72 %72 %
(1)This project was initiated due to demand from neighboring tenants.
40

New Class A Development and Redevelopment Properties: Current Projects (continued)
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December 31, 2022
(Dollars in thousands)

Our Ownership InterestAt 100%Unlevered Yields
Market
Property/Submarket
In ServiceCIPCost to CompleteTotal at
Completion
Initial StabilizedInitial Stabilized (Cash Basis)
Under construction
Greater Boston
325 Binney Street/Cambridge/Inner Suburbs100 %$— $477,206 $413,794 $891,000 8.5 %7.2 %
One Rogers Street/Cambridge/Inner Suburbs100 %10,814 1,040,421 154,765 1,206,000 5.2 %4.2 %
99 Coolidge Avenue/Cambridge/Inner Suburbs75.0 %— 174,817 TBD
500 North Beacon Street and 4 Kingsbury Avenue/Cambridge/Inner Suburbs100 %— 156,299 270,701 427,000 6.2 %5.5 %
201 Brookline Avenue/Fenway98.8 %482,455 208,188 43,357 734,000 7.2 %6.2 %
15 Necco Street/Seaport Innovation District90.0 %— 339,207 227,793 567,000 6.7 %5.5 %
40, 50, and 60 Sylvan Road/Route 128100 %173,686 151,887 TBD
840 Winter Street/Route 128100 %13,642 99,117 95,241 208,000 7.5 %6.5 %
Other100 %— 128,736 TBD
San Francisco Bay Area
1450 Owens Street/Mission Bay59.7 %— 122,012 TBD
651 Gateway Boulevard/South San Francisco50.0 %— 182,941 
751 Gateway Boulevard/South San Francisco51.0 %— 171,315 118,685 290,000 6.5 %6.3 %
San Diego
10075 Barnes Canyon Road/Sorrento Mesa50.0 %— 51,389 TBD
Seattle
1150 Eastlake Avenue East/Lake Union100 %— 213,339 191,661 405,000 6.4 %6.2 %
Alexandria Center® for Advanced Technologies – Monte Villa Parkway/Bothell
100 %59,309 99,001 70,690 229,000 6.3 %6.2 %
Maryland
9810 Darnestown Road/Rockville100 %— 78,508 54,492 133,000 6.9 %6.2 %
9808 Medical Center Drive/Rockville100 %— 51,050 TBD
9601 and 9603 Medical Center Drive/Rockville100 %18,187 30,907 4,906 54,000 8.4 %7.1 %
20400 Century Boulevard/Gaithersburg100 %21,185 7,584 6,231 35,000 8.5 %8.6 %
Research Triangle
2400 Ellis Road, 40 and 41 Moore Drive, and 14 TW Alexander Drive/Research Triangle100 %93,858 121,944 121,198 337,000 7.5 %6.7 %
4 Davis Drive/Research Triangle100 %— 38,090 TBD
6040 George Watts Hill Drive, Phase II/Research Triangle100 %— 20,583 43,417 64,000 8.0 %7.0 %
Texas
8800 Technology Forest Place/Greater Houston100 %— 73,436 TBD
Canada
Canada100 %3,154 17,376 TBD
$876,290 $4,055,353 $3,690,000 
(1)
$8,620,000 
(1)
(1)Amounts rounded to the nearest $10 million and include preliminary estimated amounts for projects listed as TBD.
41

New Class A Development and Redevelopment Properties: Current Projects (continued)
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December 31, 2022
(Dollars in thousands)
Our Ownership InterestAt 100%
Market
Property/Submarket
In ServiceCIPCost to CompleteTotal at
Completion
Near-term projects expected to commence construction in the next four quarters
San Francisco Bay AreaTBD
230 Harriet Tubman Way/South San Francisco45.3 %$— $110,278 
San Diego
11255 and 11355 North Torrey Pines Road/Torrey Pines100 %— 126,748 
10931 and 10933 North Torrey Pines Road/Torrey Pines100 %— 83,241 
Campus Point by Alexandria, Phase II/University Town Center55.0 %— 53,495 
Campus Point by Alexandria, Phase I/University Town Center55.0 %— 46,821 
Seattle
701 Dexter Avenue North/Lake Union100 %— 124,303 
Maryland
9820 Darnestown Road/Rockville100 %— 38,952 
— 583,838 1,830,000 
(1)
2,420,000 
(1)
Total$876,290 $4,639,191 $5,520,000 
(1)
$11,040,000 
(1)
Our share of investment(2)
$4,660,000 
(1)
$9,730,000 
(1)

(1)Amounts rounded to the nearest $10 million and include preliminary estimated amounts for projects listed as TBD.
(2)Represents our share of investment based on our ownership percentages at the completion of development or redevelopment projects.

42

New Class A Development and Redevelopment Properties: Summary of Pipeline
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December 31, 2022
(Dollars in thousands)


Market
Property/Submarket
Our Ownership InterestBook ValueSquare Footage
Development and Redevelopment
Under ConstructionNear
Term
Intermediate
Term
Future
Total(1)
Greater Boston
Mega Campus: Alexandria Center® at One Kendall Square/Cambridge/
Inner Suburbs
100 %$477,206 462,100 — — — 462,100 
325 Binney Street
Mega Campus: Alexandria Center® at Kendall Square/Cambridge/
Inner Suburbs
100 %1,097,991 403,892 104,500 — 41,955 550,347 
One Rogers Street and 100 Edwin H. Land Boulevard
99 Coolidge Avenue/Cambridge/Inner Suburbs75.0 %174,817 320,809 — — — 320,809 
Mega Campus: The Arsenal on the Charles/Cambridge/Inner Suburbs100 %167,226 248,018 — — 342,603 590,621 
 311 Arsenal Street, 500 North Beacon Street, and 4 Kingsbury Avenue
Mega Campus: Alexandria Center® for Life Science – Fenway/Fenway
(2)
524,791 170,043 507,997 — — 678,040 
201 Brookline Avenue and 421 Park Drive
15 Necco Street/Seaport Innovation District90.0 %339,207 345,995 — — — 345,995 
Mega Campus: 40, 50, and 60 Sylvan Road, 35 Gatehouse Drive, and 840 Winter Street/Route 128100 %308,205 342,412 341,075 — 515,000 1,198,487 
275 Grove Street/Route 128100 %— — 160,251 — — 160,251 
10 Necco Street/Seaport Innovation District100 %98,667 — — 175,000 — 175,000 
215 Presidential Way/Route 128100 %6,808 — — 112,000 — 112,000 
Mega Campus: 480 Arsenal Way and 446, 458, 500, and 550 Arsenal Street/Cambridge/Inner Suburbs100 %77,582 — — — 902,000 902,000 
446, 458, and 550 Arsenal Street
Mega Campus: Alexandria Technology Square®/Cambridge/Inner Suburbs
100 %7,881 — — — 100,000 100,000 
Mega Campus: 380 and 420 E Street/Seaport Innovation District100 %125,786 — — — 1,000,000 1,000,000 
99 A Street/Seaport Innovation District100 %49,800 — — — 235,000 235,000 
Mega Campus: One Moderna Way/Route 128100 %24,686 — — — 1,100,000 1,100,000 
Other value-creation projects100 %202,708 453,869 260,992 — 449,549 1,164,410 
$3,683,361 2,747,138 1,374,815 287,000 4,686,107 9,095,060 



Refer to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)Represents total square footage upon completion of development or redevelopment of one or more new Class A properties. Square footage presented includes RSF of buildings currently in operation at properties that also have inherent future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property and commence future construction. Refer to “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(2)We have a 98.8% ownership interest in 201 Brookline Avenue aggregating 170,043 RSF, which is currently under construction, and a 100% ownership interest in the near-term development project at 421 Park Drive aggregating 507,997 SF.
43

New Class A Development and Redevelopment Properties: Summary of Pipeline (continued)
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December 31, 2022
(Dollars in thousands)

Market
Property/Submarket
Our Ownership InterestBook ValueSquare Footage
Development and Redevelopment
Under ConstructionNear
Term
Intermediate
Term
Future
Total(1)
San Francisco Bay Area
Mega Campus: Alexandria Center® for Science and Technology – Mission Bay/Mission Bay
59.7 %$122,012 212,796 — — — 212,796 
1450 Owens Street
Mega Campus: Alexandria Technology Center® – Gateway/
South San Francisco
(2)
378,730 530,602 — — 291,000 821,602 
651 and 751 Gateway Boulevard
Alexandria Center® for Life Science – Millbrae/South San Francisco
45.3 %252,173 — 633,747 — — 633,747 
230 Harriet Tubman Way, 201 and 231 Adrian Road, and 6 and 30 Rollins Road
3825 and 3875 Fabian Way/Greater Stanford100 %137,076 — — 250,000 228,000 478,000 
Mega Campus: Alexandria Center® for Life Science – San Carlos/Greater Stanford
100 %397,323 — 105,000 700,000 692,830 1,497,830 
960 Industrial Road, 987 and 1075 Commercial Street, and 888 Bransten Road
901 California Avenue/Greater Stanford100 %11,698 — 56,924 — — 56,924 
Mega Campus: 88 Bluxome Street/SoMa100 %348,135 — 1,070,925 — — 1,070,925 
Mega Campus: 1122, 1150, and 1178 El Camino Real/South San Francisco100 %350,590 — — — 1,930,000 1,930,000 
Mega Campus: 211(3), 213(3), 249, 259, 269, and 279 East Grand Avenue/
South San Francisco
100 %6,655 — — — 90,000 90,000 
211 East Grand Avenue
Other value-creation projects100 %— — — — 25,000 25,000 
2,004,392 743,398 1,866,596 950,000 3,256,830 6,816,824 
New York City
Mega Campus: Alexandria Center® for Life Science – New York City/
New York City
100 %133,505 — — 550,000 
(4)
— 550,000 
219 East 42nd Street/New York City100 %— — — 579,947 — 579,947 
$133,505   1,129,947  1,129,947 



Refer to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)Represents total square footage upon completion of development or redevelopment of one or more new Class A properties. Square footage presented includes RSF of buildings currently in operation at properties that also have inherent future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property and commence future construction. Refer to “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(2)We own a 50.0% ownership interest in 651 Gateway Boulevard aggregating 300,010 RSF and a 51.0% ownership interest in 751 Gateway Boulevard aggregating 230,592 RSF.
(3)We own a partial interest in this property through a real estate joint venture. Refer to “Joint venture financial information” of this Supplemental Information for additional details.
(4)Pursuant to an option agreement, we are currently negotiating a long-term ground lease with the City of New York for the future site of a new building of approximately 550,000 SF.
44

New Class A Development and Redevelopment Properties: Summary of Pipeline (continued)
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December 31, 2022
(Dollars in thousands)

Market
Property/Submarket
Our Ownership InterestBook ValueSquare Footage
Development and Redevelopment
Under ConstructionNear
Term
Intermediate
Term
Future
Total(1)
San Diego
Mega Campus: SD Tech by Alexandria/Sorrento Mesa50.0 %$116,330 254,771 — 160,000 333,845 748,616 
9805 Scranton Road and 10065 and 10075 Barnes Canyon Road
Mega Campus: One Alexandria Square and One Alexandria North/Torrey Pines100 %262,456 — 608,252 125,280 — 733,532 
10931, 10933, 11255, and 11355 North Torrey Pines Road and 10975 and 10995 Torreyana Road
Mega Campus: Campus Point by Alexandria/University Town Center55.0 %259,044 — 598,029 — 1,074,445 1,672,474 
10010(2), 10140(2), and 10260 Campus Point Drive and 4110, 4150, 4161, and 4275(2) Campus Point Court
Mega Campus: Sequence District by Alexandria/Sorrento Mesa100 %43,100 — 200,000 509,000 1,089,915 1,798,915 
6260, 6290, 6310, 6340, 6350, and 6450 Sequence Drive
Scripps Science Park by Alexandria/Sorrento Mesa100 %69,978 — 105,000 175,041 164,000 444,041 
10048 and 10219 Meanley Drive, and 10277 Scripps Ranch Boulevard
Mega Campus: University District/University Town Center100 %143,990 — — 937,000 — 937,000 
9363, 9373, and 9393 Towne Centre Drive, 8410-8750 Genesee Avenue, and 4282 Esplanade Court
Pacific Technology Park/Sorrento Mesa50.0 %21,981 — — 149,000 — 149,000 
9444 Waples Street
Mega Campus: 5200 Illumina Way/University Town Center51.0 %16,652 — — — 451,832 451,832 
4025, 4031, 4045, and 4075 Sorrento Valley Boulevard/Sorrento Valley100 %21,282 — — — 247,000 247,000 
Other value-creation projects100 %68,606 — — — 475,000 475,000 
1,023,419 254,771 1,511,281 2,055,321 3,836,037 7,657,410 
Seattle
Mega Campus: The Eastlake Life Science Campus by Alexandria/
Lake Union
100 %213,339 311,631 — — — 311,631 
1150 Eastlake Avenue East
Alexandria Center® for Advanced Technologies – Monte Villa Parkway/Bothell
100 %99,001 213,976 50,552 — — 264,528 
3301, 3555, and 3755 Monte Villa Parkway
Mega Campus: Alexandria Center® for Life Science – South Lake Union/
Lake Union
(3)
377,870 — 1,095,586 — 188,400 1,283,986 
601 and 701 Dexter Avenue North and 800 Mercer Street
830 and 1010 4th Avenue South/SoDo100 %$53,937 — — — 597,313 597,313 


Refer to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)Represents total square footage upon completion of development or redevelopment of one or more new Class A properties. Square footage presented includes RSF of buildings currently in operation at properties that also have inherent future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property and commence future construction. Refer to “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(2)We have a 100% ownership interest in this property.
(3)We have a 100% ownership interest in 601 and 701 Dexter Avenue North aggregating 414,986 SF and a 60% ownership interest in the near-term development project at 800 Mercer Street aggregating 869,000 SF.
45

New Class A Development and Redevelopment Properties: Summary of Pipeline (continued)
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December 31, 2022
(Dollars in thousands)

Market
Property/Submarket
Our Ownership InterestBook ValueSquare Footage
Development and Redevelopment
Under ConstructionNear
Term
Intermediate
Term
Future
Total(1)
Seattle (continued)
Mega Campus: Alexandria Center® for Advanced Technologies – Canyon Park/Bothell
100 %$14,059 — — — 230,000 230,000 
21660 20th Avenue Southeast
Other value-creation projects100 %84,369 — — — 691,000 691,000 
842,575 525,607 1,146,138  1,706,713 3,378,458 
Maryland
Mega Campus: Alexandria Center® for Life Science – Shady Grove/Rockville
100 %218,117 343,322 250,000 258,000 38,000 889,322 
9601, 9603, and 9808 Medical Center Drive and 9810, 9820, and 9830 Darnestown Road
20400 Century Boulevard/Gaithersburg100 %7,584 29,812 — — — 29,812 
225,701 373,134 250,000 258,000 38,000 919,134 
Research Triangle
Mega Campus: Alexandria Center® for Life Science – Durham/
Research Triangle
100 %271,547 376,871 — — 2,060,000 2,436,871 
40 and 41 Moore Drive and 14 TW Alexander Drive
Mega Campus: Alexandria Center® for Advanced Technologies – Research Triangle/Research Triangle
100 %74,801 180,000 — — 990,000 1,170,000 
4 and 12 Davis Drive
6040 George Watts Hill Drive, Phase II/Research Triangle100 %20,583 88,038 — — — 88,038 
Mega Campus: Alexandria Center® for NextGen Medicines/
Research Triangle
100 %100,290 — 100,000 100,000 855,000 1,055,000 
3029 East Cornwallis Road
120 TW Alexander Drive, 2752 East NC Highway 54, and 10 South Triangle Drive/Research Triangle100 %51,083 — — — 750,000 750,000 
Other value-creation projects100 %4,185 — — — 76,262 76,262 
$522,489 644,909 100,000 100,000 4,731,262 5,576,171 
Refer to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)Represents total square footage upon completion of development or redevelopment of one or more new Class A properties. Square footage presented includes RSF of buildings currently in operation at properties that also have inherent future development or redevelopment opportunities. Upon expiration of existing in-place leases, we have the intent to demolish or redevelop the existing property and commence future construction. Refer to “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
46

New Class A Development and Redevelopment Properties: Summary of Pipeline (continued)
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December 31, 2022
(Dollars in thousands)

Market
Property/Submarket
Our Ownership InterestBook ValueSquare Footage
Development and Redevelopment
Under ConstructionNear
Term
Intermediate
Term
Future
Total(1)
Texas
8800 Technology Forest Place/Greater Houston100 %$84,514 201,499 — — 116,287 317,786 
1020 Red River Street/Austin100 %9,197 — — — 177,072 177,072 
Other value-creation projects100 %127,618 — — — 1,694,000 1,694,000 
221,329 201,499 — — 1,987,359 2,188,858 
Canada100 %17,376 107,081 — — 124,000 231,081 
Other value-creation projects100 %41,188 — — — 350,000 350,000 
Total pipeline as of December 31, 2022
$8,715,335 
(2)
5,597,537 6,248,830 4,780,268 20,716,308 37,342,943 


Refer to “Mega campus” in the “Definitions and reconciliations” of this Supplemental Information for additional details.

(1)Total square footage includes 4,550,537 RSF of buildings currently in operation that we intend to demolish or redevelop and commence future construction. Refer to “Definitions and reconciliations” of this Supplemental Information for additional details on value-creation square feet currently included in rental properties.
(2)Total book value includes $4.1 billion of projects currently under construction that are 68% leased/negotiating. We also expect to commence construction on seven near-term projects aggregating $583.8 million, which are 88% leased, in the next four quarters.
47

Construction Spending
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December 31, 2022
(In thousands)



Year Ended
December 31, 2022
Construction Spending
Additions to real estate – consolidated projects
$3,307,313 
Investments in unconsolidated real estate joint ventures1,442 
Contributions from noncontrolling interests(320,057)
Construction spending (cash basis)2,988,698 
Change in accrued construction102,801 
Construction spending$3,091,499 

Year Ending
December 31, 2023
Projected Construction Spending
Development, redevelopment, and pre-construction projects$3,549,000 
Contributions from noncontrolling interests (consolidated real estate joint ventures)
(794,000)
(1)
Revenue-enhancing and repositioning capital expenditures
160,000 
Non-revenue-enhancing capital expenditures60,000 
Guidance midpoint$2,975,000 
(1)Approximately 55% of this amount represents contractual funding commitments from our existing consolidated real estate joint ventures, and the remaining amount is from projected new real estate joint ventures.

48

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Joint Venture Financial Information
December 31, 2022
Consolidated Real Estate Joint Ventures
PropertyMarketSubmarket
Noncontrolling
Interest Share(1)
Operating RSF
at 100%
50 and 60 Binney StreetGreater BostonCambridge/Inner Suburbs66.0%532,395
75/125 Binney StreetGreater BostonCambridge/Inner Suburbs60.0%388,270
100 and 225 Binney Street and 300 Third StreetGreater BostonCambridge/Inner Suburbs70.0%870,106
99 Coolidge AvenueGreater BostonCambridge/Inner Suburbs25.0%
(2)
Alexandria Center® for Science and Technology – Mission Bay(3)
San Francisco Bay AreaMission Bay75.0%1,005,989
1450 Owens StreetSan Francisco Bay AreaMission Bay40.3%
(4)
(2)
601, 611, 651, 681, 685, and 701 Gateway BoulevardSan Francisco Bay AreaSouth San Francisco50.0%789,567
751 Gateway BoulevardSan Francisco Bay AreaSouth San Francisco49.0%
(2)
211 and 213 East Grand AvenueSan Francisco Bay AreaSouth San Francisco70.0%300,930
500 Forbes BoulevardSan Francisco Bay AreaSouth San Francisco90.0%155,685
Alexandria Center® for Life Science – Millbrae
San Francisco Bay AreaSouth San Francisco54.7%
3215 Merryfield RowSan DiegoTorrey Pines70.0%170,523
Campus Point by Alexandria(5)
San DiegoUniversity Town Center45.0%1,337,916
5200 Illumina WaySan DiegoUniversity Town Center49.0%792,687
9625 Towne Centre DriveSan DiegoUniversity Town Center49.9%163,648
SD Tech by Alexandria(6)
San DiegoSorrento Mesa50.0%876,869
Pacific Technology ParkSan DiegoSorrento Mesa50.0%544,352
Summers Ridge Science Park(7)
San DiegoSorrento Mesa70.0%316,531
1201 and 1208 Eastlake Avenue East and 199 East Blaine Street SeattleLake Union70.0%321,218
400 Dexter Avenue NorthSeattleLake Union70.0%290,754
800 Mercer StreetSeattleLake Union40.0%
Unconsolidated Real Estate Joint Ventures
PropertyMarketSubmarket
Our Ownership Share(8)
Operating RSF
at 100%
1655 and 1725 Third StreetSan Francisco Bay AreaMission Bay10.0%586,208
1401/1413 Research BoulevardMarylandRockville65.0%
(9)
(10)
1450 Research BoulevardMarylandRockville73.2%
(11)
42,679
101 West Dickman StreetMarylandBeltsville57.9%
(11)
135,423

(1)In addition to the consolidated real estate joint ventures listed, various partners hold insignificant noncontrolling interests in three other real estate joint ventures in North America.
(2)Represents a property currently under construction. Refer to “New Class A development and redevelopment properties: current projects” for additional details.
(3)Includes 409 and 499 Illinois Street, 1500 and 1700 Owens Street, and 455 Mission Bay Boulevard South.
(4)The noncontrolling interest share of our joint venture partner is anticipated to increase to 75% as our partner contributes 100% of the remaining cost to complete the project over time.
(5)Includes 10210, 10260, 10290, and 10300 Campus Point Drive and 4110, 4150, 4161, 4224, and 4242 Campus Point Court.
(6)Includes 9605, 9645, 9675, 9685, 9725, 9735, 9808, 9855, and 9868 Scranton Road and 10055, 10065, and 10075 Barnes Canyon Road.
(7)Includes 9965, 9975, 9985, and 9995 Summers Ridge Road.
(8)In addition to the unconsolidated real estate joint ventures listed, we hold an interest in one other insignificant unconsolidated real estate joint venture in North America.
(9)Represents our ownership interest; our voting interest is limited to 50%.
(10)Represents a joint venture with a distinguished retail real estate developer for a retail shopping center aggregating 84,837 RSF.
(11)Represents a joint venture with a local real estate operator in which our partner manages the day-to-day activities that significantly affect the economic performance of the joint venture.
49

Joint Venture Financial Information (continued)
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December 31, 2022
(In thousands)


As of December 31, 2022
Noncontrolling Interest
Share of Consolidated
Real Estate JVs
Our Share of
Unconsolidated Real
Estate JVs
Investments in real estate$3,392,839 $114,664 
Cash, cash equivalents, and restricted cash129,186 4,729 
Other assets386,667 11,346 
Secured notes payable (refer to page 54)
(14,599)(87,694)
Other liabilities(183,233)(4,610)
Redeemable noncontrolling interests(9,612)— 
$3,701,248 $38,435 


Noncontrolling Interest Share of Consolidated Real Estate JVsOur Share of
Unconsolidated Real Estate JVs
December 31, 2022December 31, 2022
Three Months EndedYear EndedThree Months EndedYear Ended
Total revenues$102,013 $366,794 $2,689 $11,130 
Rental operations(31,176)(109,358)(753)(3,197)
70,837 257,436 1,936 7,933 
General and administrative(372)(1,594)(10)(106)
Interest(15)(15)(772)(3,516)
Depreciation and amortization of real estate assets(29,702)(107,591)(982)(3,666)
Fixed returns allocated to redeemable noncontrolling interests(1)
201 805 — — 
$40,949 $149,041 $172 $645 
Straight-line rent and below-market lease revenue $3,858 $15,776 $274 $1,136 
Funds from operations(2)
$70,651 $256,632 $1,154 $4,311 


(1)Represents an allocation of joint venture earnings to redeemable noncontrolling interests primarily in one property in our South San Francisco submarket. These redeemable noncontrolling interests earn a fixed return on their investment rather than participate in the operating results of the property.
(2)Refer to “Funds from operations and funds from operations per share” in our Earnings Press Release and “Funds from operations and funds from operations, as adjusted, attributable to Alexandria’s common stockholders” in the “Definitions and reconciliations” of this Supplemental Information for the definition and its reconciliation from the most directly comparable financial measure presented in accordance with GAAP.



50

Investments
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December 31, 2022
(Dollars in thousands)

We hold strategic investments in publicly traded companies and privately held entities primarily involved in the life science, agtech, and technology industries. The tables below summarize components of our non-real estate investments and investment income. For additional details, refer to “Investments” in the “Definitions and reconciliations” of this Supplemental Information.

December 31, 2022
Three Months EndedYear EndedYear Ended December 31, 2021
Realized gains$4,464 
(1)
$80,435 
(1)
$215,845 
(2)
Unrealized (losses) gains(24,117)(412,193)43,632 
Investment (loss) income$(19,653)$(331,758)$259,477 

December 31, 2022
InvestmentsCostUnrealized
Gains
Unrealized LossesCarrying Amount
Publicly traded companies$210,986 $96,271 $(100,118)$207,139 
Entities that report NAV452,391 315,071 (7,710)759,752 
Entities that do not report NAV:
Entities with observable price changes100,296 95,062 (1,574)193,784 
Entities without observable price changes388,940 — — 388,940 
Investments accounted for under the equity method of accounting  N/AN/AN/A65,459 
December 31, 2022$1,152,613 
(3)
$506,404 $(109,402)$1,615,074 
December 31, 2021$1,007,303 $830,863 $(33,190)$1,876,564 

(1)For the three months and year ended December 31, 2022, includes impairments aggregating $20.5 million primarily related to three non-real estate investments in privately held entities that do not report NAV.
(2)Includes six separate significant realized gains aggregating $110.1 million related to the following transactions: (i) the sales of investments in three publicly traded biotechnology companies, (ii) a distribution received from a limited partnership investment, and (iii) the acquisition of two of our privately held non-real estate investments in a biopharmaceutical company and a biotechnology company.
(3)Represents 2.9% of gross assets as of December 31, 2022.

Public/Private
Mix (Cost)
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Tenant/Non-Tenant
Mix (Cost)
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51

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Key Credit Metrics
December 31, 2022

LiquidityMinimal Outstanding Borrowings and Significant Availability on Unsecured Senior Line of Credit
(in millions)
$5.3B
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(in millions)
Availability under our unsecured senior line of credit, net of amounts outstanding under our commercial paper program$4,000 
Outstanding forward equity sales agreements(1)
102 
Cash, cash equivalents, and restricted cash858 
Remaining construction loan commitments136 
Investments in publicly traded companies207 
Liquidity as of December 31, 2022
$5,303 
Net Debt and Preferred Stock to Adjusted EBITDA(2)
Fixed-Charge Coverage Ratio(2)
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(1)Represents expected net proceeds from the future settlement of 0.7 million shares under forward equity sales agreements after underwriter discounts.
(2)Quarter annualized. Refer to “Fixed-charge coverage ratio” and “Net debt and preferred stock to Adjusted EBITDA” in the “Definitions and reconciliations” of this Supplemental Information for additional details.
52

Summary of Debt
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December 31, 2022
(In millions)





Weighted-Average Remaining Term of 13.2 Years
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(1)Refer to footnotes 2 through 4 on the next page under “Fixed-rate and variable-rate debt” for additional details.
53

Summary of Debt (continued)
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December 31, 2022
(Dollars in thousands)

Fixed-rate and variable-rate debtFixed-Rate
Debt
Variable-Rate DebtTotalPercentageWeighted-Average
Interest Rate(1)
Remaining Term
(in years)
Secured notes payable$649 $58,396 $59,045 0.6 %6.75 %4.0
Unsecured senior notes payable10,100,717 — 10,100,717 99.4 3.51 13.3
Unsecured senior line of credit(2) and commercial paper program(3)
— — — — N/A5.1
(4)
Total/weighted average$10,101,366 $58,396 $10,159,762 100.0 %3.53 %13.2
(4)
Percentage of total debt99.4 %0.6 %100.0 %
(1)Represents the weighted-average interest rate as of the end of the applicable period, including expense/income related to the amortization of loan fees, amortization of debt premiums (discounts), and other bank fees.
(2)In September 2022, we amended our unsecured senior line of credit to extend the maturity date to January 22, 2028 from January 6, 2026, increase the commitments to $4.0 billion from $3.0 billion, and convert the interest rate to SOFR+0.875% from LIBOR+0.815%. In addition, the rate is subject to a sustainability adjustment of +/- four basis points based upon our ability to achieve certain annual sustainability targets. As of December 31, 2022, we had no outstanding balance on our unsecured senior line of credit.
(3)The commercial paper program provides us with the ability to issue up to $2.0 billion of commercial paper notes that bear interest at short-term fixed rates and can generally be issued with a maturity of 30 days or less and with a maximum maturity of 397 days from the date of issuance. Borrowings under the program are used to fund short-term capital needs and are backed by our unsecured senior line of credit. In the event we are unable to issue commercial paper notes or refinance outstanding borrowings under terms equal to or more favorable than those under our unsecured senior line of credit, we expect to borrow under the unsecured senior line of credit at SOFR+0.875%. As of December 31, 2022, we had no commercial paper notes outstanding.
(4)We calculate the weighted-average remaining term of our commercial paper notes by using the maturity date of our unsecured senior line of credit. Using the maturity date of our outstanding commercial paper, the consolidated weighted-average maturity of our debt is 13.2 years. The commercial paper notes sold during the year ended December 31, 2022 were issued at a weighted-average yield to maturity of 1.91% and had a weighted-average maturity term of 13 days.


Average debt outstanding and weighted-average interest rateAverage Debt OutstandingWeighted-Average Interest Rate
December 31, 2022December 31, 2022
Three Months EndedYear EndedThree Months EndedYear Ended
Long-term fixed-rate debt$10,174,809 $9,999,145 3.51 %3.50 %
Short-term variable-rate unsecured senior line of credit and commercial paper program debt
341,175 564,649 4.10 1.72 
Blended average interest rate10,515,984 10,563,794 3.53 3.40 
Loan fee amortization and annual facility fee related to unsecured senior line of creditN/AN/A0.12 0.11 
Total/weighted average$10,515,984 $10,563,794 3.65 %3.51 %


54

Summary of Debt (continued)
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December 31, 2022
(Dollars in thousands)


Debt covenantsUnsecured Senior Notes PayableUnsecured Senior Line of Credit
Debt Covenant Ratios(1)
RequirementDecember 31, 2022RequirementDecember 31, 2022
Total Debt to Total Assets≤ 60%27%≤ 60.0%26.6%
Secured Debt to Total Assets≤ 40%0.2%≤ 45.0%0.1%
Consolidated EBITDA to Interest Expense≥ 1.5x18.2x≥ 1.50x4.34x
Unencumbered Total Asset Value to Unsecured Debt≥ 150%363%N/AN/A
Unsecured Interest Coverage RatioN/AN/A≥ 1.75x18.87x
(1)All covenant ratio titles utilize terms as defined in the respective debt and credit agreements. The calculation of consolidated EBITDA is based on the definitions contained in our loan agreements and is not directly comparable to the computation of EBITDA as described in Exchange Act Release No. 47226.


Unconsolidated real estate joint ventures’ debtAt 100%
Unconsolidated Joint VentureMaturity DateStated Rate
Interest Rate(1)
Aggregate Commitment
Debt Balance(2)
Our Share
1401/1413 Research Boulevard12/23/242.70%3.33%$28,500 $28,146 65.0%
1655 and 1725 Third Street
3/10/254.50%4.57%600,000 599,081 10.0%
101 West Dickman Street11/10/26SOFR+1.95%
(3)
6.38%26,750 11,575 57.9%
1450 Research Boulevard12/10/26SOFR+1.95%
(3)
6.44%13,000 3,802 73.2%
$668,250 $642,604 
(1)Includes interest expense and amortization of loan fees.
(2)Represents outstanding principal, net of unamortized deferred financing costs, as of December 31, 2022.
(3)This loan is subject to a fixed SOFR floor rate of 0.75%.
55

Summary of Debt (continued)
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December 31, 2022
(Dollars in thousands)

DebtStated 
Rate
Interest
Rate(1)
Maturity
Date(2)
Principal Payments Remaining for the Periods Ending December 31,PrincipalUnamortized (Deferred Financing Cost), (Discount)/PremiumTotal
20232024202520262027Thereafter
Secured notes payable
Greater Boston(3)
SOFR+2.70 %6.75 %11/19/26$— $— $— $59,717 $— $— $59,717 $(1,321)$58,396 
San Francisco Bay Area6.50 %6.50 7/1/3630 32 34 36 38 479 649 — 649 
Secured debt weighted-average interest rate/subtotal
6.75 30 32 34 59,753 38 479 60,366 (1,321)59,045 
Unsecured senior line of credit and commercial paper program(4)
(4)
N/A
(4)
1/22/28
(4)
(4)
— — — — — 
(4)
— — — 
Unsecured senior notes payable
3.45 %3.62 4/30/25— — 600,000 — — — 600,000 (2,061)597,939 
Unsecured senior notes payable
4.30 %4.50 1/15/26— — — 300,000 — — 300,000 (1,507)298,493 
Unsecured senior notes payable – green bond
3.80 %3.96 4/15/26— — — 350,000 — — 350,000 (1,631)348,369 
Unsecured senior notes payable
3.95 %4.13 1/15/27— — — — 350,000 — 350,000 (2,074)347,926 
Unsecured senior notes payable
3.95 %4.07 1/15/28— — — — — 425,000 425,000 (2,152)422,848 
Unsecured senior notes payable
4.50 %4.60 7/30/29— — — — — 300,000 300,000 (1,469)298,531 
Unsecured senior notes payable
2.75 %2.87 12/15/29— — — — — 400,000 400,000 (2,879)397,121 
Unsecured senior notes payable
4.70 %4.81 7/1/30— — — — — 450,000 450,000 (2,796)447,204 
Unsecured senior notes payable
4.90 %5.05 12/15/30— — — — — 700,000 700,000 (6,290)693,710 
Unsecured senior notes payable
3.375 %3.48 8/15/31— — — — — 750,000 750,000 (5,628)744,372 
Unsecured senior notes payable – green bond2.00 %2.12 5/18/32— — — — — 900,000 900,000 (8,802)891,198 
Unsecured senior notes payable
1.875 %1.97 2/1/33— — — — — 1,000,000 1,000,000 (8,840)991,160 
Unsecured senior notes payable – green bond2.95 %3.07 3/15/34— — — — — 800,000 800,000 (8,737)791,263 
Unsecured senior notes payable
4.85 %4.93 4/15/49— — — — — 300,000 300,000 (3,102)296,898 
Unsecured senior notes payable
4.00 %3.91 2/1/50— — — — — 700,000 700,000 10,222 710,222 
Unsecured senior notes payable
3.00 %3.08 5/18/51— — — — — 850,000 850,000 (11,988)838,012 
Unsecured senior notes payable
3.55 %3.63 3/15/52— — — — — 1,000,000 1,000,000 (14,549)985,451 
Unsecured debt weighted average/subtotal3.51 — — 600,000 650,000 350,000 8,575,000 10,175,000 (74,283)10,100,717 
Weighted-average interest rate/total
3.53 %$30 $32 $600,034 $709,753 $350,038 $8,575,479 $10,235,366 $(75,604)$10,159,762 
Balloon payments
$— $— $600,000 $709,717 $350,000 $8,575,068 $10,234,785 $— $10,234,785 
Principal amortization
30 32 34 36 38 411 581 (75,604)(75,023)
Total debt$30 $32 $600,034 $709,753 $350,038 $8,575,479 $10,235,366 $(75,604)$10,159,762 
Fixed-rate debt$30 $32 $600,034 $650,036 $350,038 $8,575,479 $10,175,649 $(74,283)$10,101,366 
Variable-rate debt— — — 59,717 — — 59,717 (1,321)58,396 
Total debt
$30 $32 $600,034 $709,753 $350,038 $8,575,479 $10,235,366 $(75,604)$10,159,762 
Weighted-average stated rate on maturing debt
N/AN/A3.45%3.92%3.95%3.33%
(1)Represents the weighted-average interest rate as of the end of the applicable period, including amortization of loan fees, amortization of debt premiums (discounts), and other bank fees.
(2)Reflects any extension options that we control.
(3)Represents a secured construction loan held by our consolidated real estate joint venture at 99 Coolidge Avenue, of which we own a 75.0% interest. As of December 31, 2022, this joint venture has $135.6 million available under existing lender commitments. The interest rate shall be reduced from SOFR+2.70% to SOFR+2.10% over time upon the completion of certain leasing, construction, and financial covenant milestones.
(4)Refer to footnotes 2 through 4 under the “Fixed-rate and variable-rate debt” header of this “Summary of Debt”.
56

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Definitions and Reconciliations
December 31, 2022


This section contains additional details for sections throughout this Supplemental Information and the accompanying Earnings Press Release, as well as explanations and reconciliations of certain non-GAAP financial measures and the reasons why we use these supplemental measures of performance and believe they provide useful information to investors. Additional detail can be found in our most recent annual report on Form 10-K and subsequent quarterly reports on Form 10-Q, as well as other documents filed with or furnished to the SEC from time to time.

Adjusted EBITDA and Adjusted EBITDA margin
 
The following table reconciles net income (loss), the most directly comparable financial measure calculated and presented in accordance with GAAP, to Adjusted EBITDA and calculates the Adjusted EBITDA margin:
 
Three Months Ended
(Dollars in thousands)
12/31/229/30/226/30/223/31/2212/31/21
Net income (loss)$95,268 $383,443 $309,382 $(117,392)$99,796 
Interest expense
17,522 22,984 24,257 29,440 34,862 
Income taxes
2,063 1,950 2,089 3,571 4,156 
Depreciation and amortization264,480 254,929 242,078 240,659 239,254 
Stock compensation expense11,586 17,786 14,340 14,028 14,253 
Loss on early extinguishment of debt
— — 3,317 — — 
Gain on sales of real estate— (323,699)(214,219)— (124,226)
Unrealized losses on non-real estate investments24,117 56,515 68,128 263,433 139,716 
Impairment of real estate
26,186 38,783 — — — 
Impairment of non-real estate investments20,512 — — — — 
Adjusted EBITDA
$461,734 $452,691 $449,372 $433,739 $407,811 
Total revenues$670,281 $659,852 $643,764 $615,065 $576,923 
Adjusted EBITDA margin
69%69%70%71%71%

We use Adjusted EBITDA as a supplemental performance measure of our operations, for financial and operational decision-making, and as a supplemental means of evaluating period-to-period comparisons on a consistent basis. Adjusted EBITDA is calculated as earnings before interest, taxes, depreciation, and amortization (“EBITDA”), excluding stock compensation expense, gains or losses on early extinguishment of debt, gains or losses on sales of real estate, impairments of real estate, and significant termination fees. Adjusted EBITDA also excludes unrealized gains or losses and significant realized gains or losses and impairments that result from our non-real estate investments. These non-real estate investment amounts are classified in our consolidated statements of operations outside of total revenues.

We believe Adjusted EBITDA provides investors with relevant and useful information as it allows investors to evaluate the operating performance of our business activities without having to account for differences recognized because of investing and financing decisions related to our real estate and non-real estate investments, our capital structure, capital market transactions, and variances resulting from the volatility of market conditions outside of our control. For example, we exclude gains or losses on the early extinguishment of debt to allow investors to measure our performance independent of our indebtedness and capital structure. We believe that adjusting for the effects of impairments and gains or losses on sales of real estate, significant impairments and realized gains or losses on non-real estate investments, and significant termination fees allows investors to evaluate performance from period to period on a consistent basis without having to account for differences recognized because of investing and financing decisions related to our real estate and non-real estate investments or other corporate activities that may not be representative of the operating performance of our properties.

In addition, we believe that excluding charges related to stock compensation and unrealized gains or losses facilitates for investors a comparison of our business activities across periods without the volatility resulting from market forces outside of our control. Adjusted EBITDA has limitations as a measure of our performance. Adjusted EBITDA does not reflect our historical expenditures or future requirements for capital expenditures or contractual commitments. While Adjusted EBITDA is a relevant measure of performance, it does not represent net income (loss) or cash flows from operations calculated and presented in accordance with GAAP, and it should not be considered as an alternative to those indicators in evaluating performance or liquidity.

In order to calculate the Adjusted EBITDA margin, we divide Adjusted EBITDA by total revenues as presented in our consolidated statements of operations. We believe that this supplemental performance measure provides investors with additional useful information regarding the profitability of our operating activities.

Annual rental revenue

Annual rental revenue represents the annualized fixed base rental obligations, calculated in accordance with GAAP, for leases in effect as of the end of the period, related to our operating RSF. Annual rental revenue is presented using 100% of the annual rental revenue from our consolidated properties and our share of annual rental revenue for our unconsolidated real estate joint ventures. Annual rental revenue per RSF is computed by dividing annual rental revenue by the sum of 100% of the RSF of our consolidated properties and our share of the RSF of properties held in unconsolidated real estate joint ventures. As of December 31, 2022, approximately 93% of our leases (on an annual rental revenue basis) were triple net leases, which require tenants to pay substantially all real estate taxes, insurance, utilities, repairs and maintenance, common area expenses, and other operating expenses (including increases thereto) in addition to base rent. Annual rental revenue excludes these operating expenses recovered from our tenants. Amounts recovered from our tenants related to these operating expenses, along with base rent, are classified in income from rentals in our consolidated statements of operations.

Capitalization rates

Capitalization rates are calculated based on net operating income and net operating income (cash basis) annualized for the quarter preceding the date on which the property is sold, or near-term prospective net operating income.
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Definitions and Reconciliations (continued)
December 31, 2022
Cash interest

Cash interest is equal to interest expense calculated in accordance with GAAP plus capitalized interest, less amortization of loan fees and debt premiums (discounts). Refer to the definition of fixed-charge coverage ratio for a reconciliation of interest expense, the most directly comparable financial measure calculated and presented in accordance with GAAP, to cash interest.

Class A properties and AAA locations

Class A properties are properties clustered in AAA locations that provide innovative tenants with highly dynamic and collaborative environments that enhance their ability to successfully recruit and retain world-class talent and inspire productivity, efficiency, creativity, and success. Class A properties generally command higher annual rental rates than other classes of similar properties.

AAA locations are in close proximity to concentrations of specialized skills, knowledge, institutions, and related businesses. Such locations are generally characterized by high barriers to entry for new landlords, high barriers to exit for tenants, and a limited supply of available space.

Construction costs related to active development and redevelopment projects under contract

Includes (i) costs incurred to date, (ii) remaining costs to complete under a general contractor’s guaranteed maximum price (“GMP”) construction contract or other fixed contracts, and (iii) our maximum committed tenant improvement allowances under our executed leases. The general contractor’s GMP contract or other fixed contracts reduce our exposure to costs of construction materials, labor, and services from third-party contractors and suppliers, unless the overruns result from, among other things, a force majeure event or a change in the scope of work covered by the contract.

Development, redevelopment, and pre-construction

A key component of our business model is our disciplined allocation of capital to the development and redevelopment of new Class A properties, and property enhancements identified during the underwriting of certain acquired properties, located in collaborative life science, agtech, and technology campuses in AAA innovation clusters. These projects are generally focused on providing high-quality, generic, and reusable spaces that meet the real estate requirements of, and are reusable by, a wide range of tenants. Upon completion, each value-creation project is expected to generate a significant increase in rental income, net operating income, and cash flows. Our development and redevelopment projects are generally in locations that are highly desirable to high-quality entities, which we believe results in higher occupancy levels, longer lease terms, higher rental income, higher returns, and greater long-term asset value.

Development projects generally consist of the ground-up development of generic and reusable facilities. Redevelopment projects consist of the permanent change in use of office, warehouse, and shell space into office/laboratory, agtech, or tech office space. We generally will not commence new development projects for aboveground construction of new Class A office/laboratory, agtech, and tech office space without first securing significant pre-leasing for such space, except when there is solid market demand for high-quality Class A properties.

Pre-construction activities include entitlements, permitting, design, site work, and other activities preceding commencement of construction of aboveground building improvements. The advancement of pre-construction efforts is focused on reducing the time required to deliver projects to prospective tenants. These critical activities add significant value for future ground-up development and are required for the vertical construction of buildings. Ultimately, these projects will provide high-quality facilities and are expected to generate significant revenue and cash flows.

Development, redevelopment, and pre-construction spending also includes the following costs: (i) amounts to bring certain acquired properties up to market standard and/or other costs identified during the acquisition process (generally within two years of acquisition) and (ii) permanent conversion of space for highly flexible, move-in-ready office/laboratory space to foster the growth of promising early- and growth-stage life science companies.

Revenue-enhancing and repositioning capital expenditures represent spending to reposition or significantly change the use of a property, including through improvement in the asset quality from Class B to Class A.

Non-revenue-enhancing capital expenditures represent costs required to maintain the current revenues of a stabilized property, including the associated costs for renewed and re-leased space.

Dividend payout ratio (common stock)

Dividend payout ratio (common stock) is the ratio of the absolute dollar amount of dividends on our common stock (shares of common stock outstanding on the respective record dates multiplied by the related dividend per share) to funds from operations attributable to Alexandria’s common stockholders – diluted, as adjusted.

Dividend yield

Dividend yield for the quarter represents the annualized quarter dividend divided by the closing common stock price at the end of the quarter.

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Definitions and Reconciliations (continued)
December 31, 2022
Fixed-charge coverage ratio

Fixed-charge coverage ratio is a non-GAAP financial measure representing the ratio of Adjusted EBITDA to fixed charges. We believe that this ratio is useful to investors as a supplemental measure of our ability to satisfy fixed financing obligations and preferred stock dividends. Cash interest is equal to interest expense calculated in accordance with GAAP plus capitalized interest, less amortization of loan fees and debt premiums (discounts).

The following table reconciles interest expense, the most directly comparable financial measure calculated and presented in accordance with GAAP, to cash interest and computes fixed-charge coverage ratio:
 Three Months Ended
(Dollars in thousands)12/31/229/30/226/30/223/31/2212/31/21
Adjusted EBITDA$461,734 $452,691 $449,372 $433,739 $407,811 
Interest expense
$17,522 $22,984 $24,257 $29,440 $34,862 
Capitalized interest79,491 73,189 68,202 57,763 44,078 
Amortization of loan fees(3,975)(3,235)(3,236)(3,103)(2,911)
Amortization of debt (discounts) premiums(272)(269)(267)424 502 
Cash interest and fixed charges$92,766 $92,669 $88,956 $84,524 $76,531 
Fixed-charge coverage ratio:
– quarter annualized5.0x4.9x5.1x5.1x5.3x
– trailing 12 months5.0x5.1x5.1x5.1x5.0x
Funds from operations and funds from operations, as adjusted, attributable to Alexandria’s common stockholders

GAAP-basis accounting for real estate assets utilizes historical cost accounting and assumes that real estate values diminish over time. In an effort to overcome the difference between real estate values and historical cost accounting for real estate assets, the Nareit Board of Governors established funds from operations as an improved measurement tool. Since its introduction, funds from operations has become a widely used non-GAAP financial measure among equity REITs. We believe that funds from operations is helpful to investors as an additional measure of the performance of an equity REIT. Moreover, we believe that funds from operations, as adjusted, allows investors to compare our performance to the performance of other real estate companies on a consistent basis, without having to account for differences recognized because of real estate acquisition and disposition decisions, financing decisions, capital structure, capital market transactions, variances resulting from the volatility of market conditions outside of our control, or other corporate activities that may not be representative of the operating performance of our properties.

The 2018 White Paper published by the Nareit Board of Governors (the “Nareit White Paper”) defines funds from operations as net income (computed in accordance with GAAP), excluding gains or losses on sales of real estate, and impairments of real estate, plus depreciation and amortization of operating real estate assets, and after adjustments for our share of consolidated and unconsolidated partnerships and real estate joint ventures. Impairments represent the write-down of assets when fair value over the recoverability period is less than the carrying value due to changes in general market conditions and do not necessarily reflect the operating performance of the properties during the corresponding period.

We compute funds from operations, as adjusted, as funds from operations calculated in accordance with the Nareit White Paper, excluding significant gains, losses, and impairments realized on non-real estate investments, unrealized gains or losses on non-real estate investments, gains or losses on early extinguishment of debt, significant termination fees, acceleration of stock compensation expense due to the resignation of an executive officer, deal costs, the income tax effect related to such items, and the amount of such items that is allocable to our unvested restricted stock awards. We compute the amount that is allocable to our unvested restricted stock awards using the two-class method. Under the two-class method, we allocate net income (after amounts attributable to noncontrolling interests) to common stockholders and to unvested restricted stock awards by applying the respective weighted-average shares outstanding during each quarter-to-date and year-to-date period. This may result in a difference of the summation of the quarter-to-date and year-to-date amounts. Neither funds from operations nor funds from operations, as adjusted, should be considered as alternatives to net income (determined in accordance with GAAP) as indications of financial performance, or to cash flows from operating activities (determined in accordance with GAAP) as measures of liquidity, nor are they indicative of the availability of funds for our cash needs, including our ability to make distributions.

The following table reconciles net income to funds from operations for the share of consolidated real estate joint ventures attributable to noncontrolling interests and our share of unconsolidated real estate joint ventures:
Noncontrolling Interest Share of Consolidated Real Estate JVsOur Share of Unconsolidated
Real Estate JVs
December 31, 2022December 31, 2022
(In thousands)Three Months EndedYear EndedThree Months EndedYear Ended
Net income$40,949 $149,041 $172 $645 
Depreciation and amortization of real estate assets29,702 107,591 982 3,666 
Funds from operations$70,651 $256,632 $1,154 $4,311 

Gross assets

Gross assets are calculated as total assets plus accumulated depreciation:
(In thousands)12/31/229/30/226/30/223/31/2212/31/21
Total assets$35,523,399 $34,368,614 $33,244,053 $32,844,256 $30,219,373 
Accumulated depreciation4,354,063 4,148,230 4,060,536 3,951,666 3,771,241 
Gross assets$39,877,462 $38,516,844 $37,304,589 $36,795,922 $33,990,614 

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Definitions and Reconciliations (continued)
December 31, 2022
Initial stabilized yield (unlevered)

Initial stabilized yield is calculated as the estimated amounts of net operating income at stabilization divided by our investment in the property. Our initial stabilized yield excludes the benefit of leverage. Our cash rents related to our value-creation projects are generally expected to increase over time due to contractual annual rent escalations. Our estimates for initial stabilized yields, initial stabilized yields (cash basis), and total costs at completion represent our initial estimates at the commencement of the project. We expect to update this information upon completion of the project, or sooner if there are significant changes to the expected project yields or costs.
Initial stabilized yield reflects rental income, including contractual rent escalations and any rent concessions over the term(s) of the lease(s), calculated on a straight-line basis.
Initial stabilized yield (cash basis) reflects cash rents at the stabilization date after initial rental concessions, if any, have elapsed and our total cash investment in the property.

Investment-grade or publicly traded large cap tenants

Investment-grade or publicly traded large cap tenants represent tenants that are investment-grade rated or publicly traded companies with an average daily market capitalization greater than $10 billion for the twelve months ended December 31, 2022, as reported by Bloomberg Professional Services. Credit ratings from Moody’s Investors Service and S&P Global Ratings reflect credit ratings of the tenant’s parent entity, and there can be no assurance that a tenant’s parent entity will satisfy the tenant’s lease obligation upon such tenant’s default. We monitor the credit quality and related material changes of our tenants. Material changes that cause a tenant’s market capitalization to decrease below $10 billion, which are not immediately reflected in the twelve-month average, may result in their exclusion from this measure.

Space Intentionally Blank

Investments

We hold strategic investments in publicly traded companies and privately held entities primarily involved in the life science, agtech, and technology industries. We recognize, measure, present, and disclose these investments as follows:
Statements of Operations
Balance SheetGains and Losses
Carrying AmountUnrealizedRealized
Difference between proceeds received upon disposition and historical cost
Publicly traded companies
Fair valueChanges in fair value
Privately held entities without readily determinable fair values that:
Report NAVFair value, using NAV as a practical expedientChanges in NAV, as a practical expedient to fair value
Do not report NAV
Cost, adjusted for observable price changes and impairments(1)
Observable price changes(1)
Impairments to reduce costs to fair value, which result in an adjusted cost basis and the differences between proceeds received upon disposition and adjusted or historical cost
Equity method investments
Contributions, adjusted for our share of the investee’s earnings or losses, less distributions received, reduced by other-than-temporary impairments
Our share of unrealized gains or losses reported by the investee
Our share of realized gains or losses reported by the investee, and other-than-temporary impairments
(1)An observable price is a price observed in an orderly transaction for an identical or similar investment of the same issuer. Observable price changes result from, among other things, equity transactions for the same issuer with similar rights and obligations executed during the reporting period, including subsequent equity offerings or other reported equity transactions related to the same issuer.

Investments in real estate

The following table reconciles our investments in real estate as of December 31, 2022:
(In thousands)Investments in
Real Estate
Gross investments in real estate – North America$34,283,456 
Less: accumulated depreciation – North America(4,349,780)
Net investments in real estate – North America29,933,676 
Net investments in real estate – Asia11,764 
Investments in real estate$29,945,440 
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Definitions and Reconciliations (continued)
December 31, 2022
The square footage presented in the table below includes RSF of buildings in operation as of December 31, 2022, primarily representing lease expirations or vacant space at recently acquired properties that also have inherent future development or redevelopment opportunities and for which we have the intent to demolish or redevelop the existing property upon expiration of the existing in-place leases and commencement of future construction:
Dev/
Redev
RSF of Lease Expirations Targeted for
Development and Redevelopment
Property/Submarket20232024
Thereafter(1)
Total
Near-term projects:
100 Edwin H. Land Boulevard/Cambridge/Inner SuburbsRedev— 104,500 — 104,500 
40 Sylvan Road/Route 128Redev312,845 — — 312,845 
275 Grove Street/Route 128Redev— — 160,251 160,251 
840 Winter Street/Route 128Redev10,265 17,965 — 28,230 
3301 Monte Villa Parkway/BothellRedev— 50,552 — 50,552 
323,110 173,017 160,251 656,378 
Intermediate-term projects:
219 East 42nd Street/New York CityDev— 349,947 — 349,947 
10975 and 10995 Torreyana Road/Torrey PinesDev— 84,829 — 84,829 
— 434,776 — 434,776 
Future projects:
311 Arsenal Street/Cambridge/Inner SuburbsRedev— — 308,446 308,446 
550 Arsenal Street/Cambridge/Inner SuburbsDev— — 260,867 260,867 
446 and 458 Arsenal Street/Cambridge/Inner SuburbsDev— — 38,200 38,200 
380 and 420 E Street/Seaport Innovation DistrictDev— — 195,506 195,506 
Other/Greater BostonRedev— — 167,549 167,549 
1122 and 1150 El Camino Real/South San FranciscoDev— — 655,172 655,172 
3875 Fabian Way/Greater StanfordDev— — 228,000 228,000 
960 Industrial Road/Greater StanfordDev— — 110,000 110,000 
Campus Point by Alexandria/University Town CenterDev— 495,192 — 495,192 
Sequence District by Alexandria/Sorrento MesaDev/Redev— — 688,034 688,034 
4025 and 4045 Sorrento Valley Boulevard/Sorrento ValleyDev— — 22,886 22,886 
601 Dexter Avenue North/Lake UnionDev18,680 — — 18,680 
830 4th Avenue South/SoDoDev— — 42,380 42,380 
Other/SeattleDev— — 102,437 102,437 
1020 Red River Street/AustinRedev— 126,034 — 126,034 
18,680 621,226 2,819,477 3,459,383 
341,790 1,229,019 2,979,728 4,550,537 
(1)Includes vacant square footage as of December 31, 2022.

Joint venture financial information

We present components of balance sheet and operating results information related to our real estate joint ventures, which are not presented, or intended to be presented, in accordance with GAAP. We present the proportionate share of certain financial line items as follows: (i) for each real estate joint venture that we consolidate in our financial statements, which are controlled by us through contractual rights or majority voting rights, but of which we own less than 100%, we apply the noncontrolling interest economic ownership percentage to each financial item to arrive at the amount of such cumulative noncontrolling interest share of each component presented; and (ii) for each real estate joint venture that we do not control and do not consolidate, and are instead controlled jointly or by our joint venture partners through contractual rights or majority voting rights, we apply our economic ownership percentage to each financial item to arrive at our proportionate share of each component presented.

The components of balance sheet and operating results information related to our real estate joint ventures do not represent our legal claim to those items. For each entity that we do not wholly own, the joint venture agreement generally determines what equity holders can receive upon capital events, such as sales or refinancing, or in the event of a liquidation. Equity holders are normally entitled to their respective legal ownership of any residual cash from a joint venture only after all liabilities, priority distributions, and claims have been repaid or satisfied.

We believe that this information can help investors estimate the balance sheet and operating results information related to our partially owned entities. Presenting this information provides a perspective not immediately available from consolidated financial statements and one that can supplement an understanding of the joint venture assets, liabilities, revenues, and expenses included in our consolidated results.

The components of balance sheet and operating results information related to our real estate joint ventures are limited as an analytical tool as the overall economic ownership interest does not represent our legal claim to each of our joint ventures’ assets, liabilities, or results of operations. In addition, joint venture financial information may include financial information related to the unconsolidated real estate joint ventures that we do not control. We believe that in order to facilitate for investors a clear understanding of our operating results and our total assets and liabilities, joint venture financial information should be examined in conjunction with our consolidated statements of operations and balance sheets. Joint venture financial information should not be considered an alternative to our consolidated financial statements, which are presented and prepared in accordance with GAAP.


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Definitions and Reconciliations (continued)
December 31, 2022
Key items included in net income attributable to Alexandria’s common stockholders

We present a tabular comparison of items, whether gain or loss, that may facilitate a high-level understanding of our results and provide context for the disclosures included in this Supplemental Information, our most recent annual report on Form 10-K, and our subsequent quarterly reports on Form 10-Q. We believe that such tabular presentation promotes a better understanding for investors of the corporate-level decisions made and activities performed that significantly affect comparison of our operating results from period to period. We also believe that this tabular presentation will supplement for investors an understanding of our disclosures and real estate operating results. Gains or losses on sales of real estate and impairments of held for sale assets are related to corporate-level decisions to dispose of real estate. Gains or losses on early extinguishment of debt are related to corporate-level financing decisions focused on our capital structure strategy. Significant realized and unrealized gains or losses on non-real estate investments, impairments of real estate and non-real estate investments, and acceleration of stock compensation expense due to the resignation of an executive officer are not related to the operating performance of our real estate assets as they result from strategic, corporate-level non-real estate investment decisions and external market conditions. Impairments of non-real estate investments are not related to the operating performance of our real estate as they represent the write-down of non-real estate investments when their fair values decrease below their respective carrying values due to changes in general market or other conditions outside of our control. Significant items, whether a gain or loss, included in the tabular disclosure for current periods are described in further detail in this Supplemental Information and accompanying Earnings Press Release.

Mega campus

Mega campuses are cluster campuses that consist of approximately 1 million RSF or more, including operating, active development/redevelopment, and land RSF less operating RSF expected to be demolished. The following table reconciles our operating RSF as of December 31, 2022:

Operating RSF
Mega campus28,554,356 
Non-mega campus13,219,366 
Total41,773,722 
Mega campus RSF as a percentage of total operating property RSF68 %

Net cash provided by operating activities after dividends

Net cash provided by operating activities after dividends includes the deduction for distributions to noncontrolling interests. For purposes of this calculation, changes in operating assets and liabilities are excluded as they represent timing differences.


Net debt and preferred stock to Adjusted EBITDA

Net debt and preferred stock to Adjusted EBITDA is a non-GAAP financial measure that we believe is useful to investors as a supplemental measure of evaluating our balance sheet leverage. Net debt and preferred stock is equal to the sum of total consolidated debt less cash, cash equivalents, and restricted cash, plus preferred stock outstanding as of the end of the period. Refer to the definition of Adjusted EBITDA and Adjusted EBITDA margin for further information on the calculation of Adjusted EBITDA.

The following table reconciles debt to net debt and preferred stock and computes the ratio to Adjusted EBITDA:
(Dollars in thousands)12/31/229/30/226/30/223/31/2212/31/21
Secured notes payable$59,045 $40,594 $24,986 $208,910 $205,198 
Unsecured senior notes payable 10,100,717 10,098,588 10,096,462 10,094,337 8,316,678 
Unsecured senior line of credit and commercial paper— 386,666 149,958 — 269,990 
Unamortized deferred financing costs74,918 76,947 78,978 81,175 65,476 
Cash and cash equivalents(825,193)(533,824)(420,258)(775,060)(361,348)
Restricted cash(32,782)(332,344)(97,404)(95,106)(53,879)
Preferred stock— — — — — 
Net debt and preferred stock$9,376,705 $9,736,627 $9,832,722 $9,514,256 $8,442,115 
Adjusted EBITDA:
– quarter annualized$1,846,936 $1,810,764 $1,797,488 $1,734,956 $1,631,244 
– trailing 12 months$1,797,536 $1,743,613 $1,680,335 $1,601,857 $1,517,838 
Net debt and preferred stock to Adjusted EBITDA:
– quarter annualized5.1 x5.4 x5.5 x5.5 x5.2 x
– trailing 12 months5.2 x5.6 x5.9 x5.9 x5.6 x

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Definitions and Reconciliations (continued)
December 31, 2022
Net operating income, net operating income (cash basis), and operating margin

The following table reconciles net income to net operating income and net operating income (cash basis) and computes operating margin:
Three Months EndedYear Ended
(Dollars in thousands)12/31/2212/31/2112/31/2212/31/21
Net income$95,268 $99,796 $670,701 $654,282 
Equity in earnings of unconsolidated real estate joint ventures(172)(3,018)(645)(12,255)
General and administrative expenses
42,992 41,654 177,278 151,461 
Interest expense17,522 34,862 94,203 142,165 
Depreciation and amortization
264,480 239,254 1,002,146 821,061 
Impairment of real estate
26,186 

— 64,969 52,675 
Loss on early extinguishment of debt
— — 3,317 67,253 
Gain on sales of real estate— (124,226)(537,918)(126,570)
Investment loss (income)19,653 112,884 331,758 (259,477)
Net operating income465,929 401,206 1,805,809 1,490,595 
Straight-line rent revenue
(24,185)(25,942)(118,003)(115,145)
Amortization of acquired below-market leases
(20,125)(15,737)(74,346)(54,780)
Net operating income (cash basis)$421,619 $359,527 $1,613,460 $1,320,670 
Net operating income (cash basis) annualized
$1,686,476 $1,438,108 $1,613,460 $1,320,670 
Net operating income (from above)$465,929 $401,206 $1,805,809 $1,490,595 
Total revenues$670,281 $576,923 $2,588,962 $2,114,150 
Operating margin70%70%70%71%

Net operating income is a non-GAAP financial measure calculated as net income, the most directly comparable financial measure calculated and presented in accordance with GAAP, excluding equity in the earnings of our unconsolidated real estate joint ventures, general and administrative expenses, interest expense, depreciation and amortization, impairments of real estate, gains or losses on early extinguishment of debt, gains or losses on sales of real estate, and investment income or loss. We believe net operating income provides useful information to investors regarding our financial condition and results of operations because it primarily reflects those income and expense items that are incurred at the property level. Therefore, we believe net operating income is a useful measure for investors to evaluate the operating performance of our consolidated real estate assets. Net operating income on a cash basis is net operating income adjusted to exclude the effect of straight-line rent and amortization of acquired above- and below-market lease revenue adjustments required by GAAP. We believe that net operating income on a cash basis is helpful to investors as an additional measure of operating performance because it eliminates straight-line rent revenue and the amortization of acquired above- and below-market leases.

Furthermore, we believe net operating income is useful to investors as a performance measure of our consolidated properties because, when compared across periods, net operating income reflects trends in occupancy rates, rental rates, and operating costs, which provide a perspective not immediately apparent from net income or loss. Net operating income can be used to measure the initial stabilized yields of our properties by calculating net operating income generated by a property divided by our investment in the property. Net operating income excludes certain components from net income in order to provide results that are more closely related to the results of operations of our properties. For example, interest expense is not necessarily linked to the operating performance of a real estate asset and is often incurred at the corporate level rather than at the property level. In addition, depreciation and amortization, because of historical cost accounting and useful life estimates, may distort comparability of operating performance at the property level. Impairments of real estate have been excluded in deriving net operating income because we do not consider impairments of real estate to be property-level operating expenses. Impairments of real estate relate to changes in the values of our assets and do not reflect the current operating performance with respect to related revenues or expenses. Our impairments of real estate represent the write-down in the value of the assets to the estimated fair value less cost to sell. These impairments result from investing decisions or a deterioration in market conditions. We also exclude realized and unrealized investment gain or loss, which results from investment decisions that occur at the corporate level related to non-real estate investments in publicly traded companies and certain privately held entities. Therefore, we do not consider these activities to be an indication of operating performance of our real estate assets at the property level. Our calculation of net operating income also excludes charges incurred from changes in certain financing decisions, such as losses on early extinguishment of debt, as these charges often relate to corporate strategy. Property operating expenses included in determining net operating income primarily consist of costs that are related to our operating properties, such as utilities, repairs, and maintenance; rental expense related to ground leases; contracted services, such as janitorial, engineering, and landscaping; property taxes and insurance; and property-level salaries. General and administrative expenses consist primarily of accounting and corporate compensation, corporate insurance, professional fees, office rent, and office supplies that are incurred as part of corporate office management. We calculate operating margin as net operating income divided by total revenues.

We believe that in order to facilitate for investors a clear understanding of our operating results, net operating income should be examined in conjunction with net income or loss as presented in our consolidated statements of operations. Net operating income should not be considered as an alternative to net income or loss as an indication of our performance, nor as an alternative to cash flows as a measure of our liquidity or our ability to make distributions.

Operating statistics

We present certain operating statistics related to our properties, including number of properties, RSF, occupancy percentage, leasing activity, and contractual lease expirations as of the end of the period. We believe these measures are useful to investors because they facilitate an understanding of certain trends for our properties. We compute the number of properties, RSF, occupancy percentage, leasing activity, and contractual lease expirations at 100% for all properties in which we have an investment, including properties owned by our consolidated and unconsolidated real estate joint ventures. For operating metrics based on annual rental revenue, refer to the definition of annual rental revenue herein.


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Definitions and Reconciliations (continued)
December 31, 2022
Same property comparisons

As a result of changes within our total property portfolio during the comparative periods presented, including changes from assets acquired or sold, properties placed into development or redevelopment, and development or redevelopment properties recently placed into service, the consolidated total income from rentals, as well as rental operating expenses in our operating results, can show significant changes from period to period. In order to supplement an evaluation of our results of operations over a given quarterly or annual period, we analyze the operating performance for all consolidated properties that were fully operating for the entirety of the comparative periods presented, referred to as same properties. We separately present quarterly and year-to-date same property results to align with the interim financial information required by the SEC in our management’s discussion and analysis of our financial condition and results of operations. These same properties are analyzed separately from properties acquired subsequent to the first day in the earliest comparable quarterly or year-to-date period presented, properties that underwent development or redevelopment at any time during the comparative periods, unconsolidated real estate joint ventures, properties classified as held for sale, and corporate entities (legal entities performing general and administrative functions), which are excluded from same property results. Additionally, termination fees, if any, are excluded from the results of same properties.

Space Intentionally Blank
The following table reconciles the number of same properties to total properties for the year ended December 31, 2022:
Redevelopment – placed into
Development – under constructionProperties
service after January 1, 2021
Properties
4 Davis Drive700 Quince Orchard Road
201 Brookline Avenue3160 Porter Drive
15 Necco Street5505 Morehouse Drive
751 Gateway BoulevardThe Arsenal on the Charles11 
325 Binney Street30-02 48th Avenue
1150 Eastlake Avenue EastOther
9810 Darnestown Road16 
99 Coolidge Avenue
Acquisitions after January 1, 2021
Properties
500 North Beacon Street and 4 Kingsbury Avenue3301, 3303, 3305, 3307, 3420, and 3440 Hillview Avenue
9808 Medical Center DriveSequence District by Alexandria
6040 George Watts Hill Drive
Alexandria Center® for Life Science – Fenway
1450 Owens Street
10075 Barnes Canyon Road550 Arsenal Street
14 1501-1599 Industrial Road
Development – placed into
One Investors Way
service after January 1, 2021
Properties2475 Hanover Street
1165 Eastlake Avenue East10975 and 10995 Torreyana Road
201 Haskins Way1Pacific Technology Park
825 and 835 Industrial Road21122 and 1150 El Camino Real
9950 Medical Center Drive112 Davis Drive
3115 Merryfield Row18505 Costa Verde Boulevard and 4260 Nobel Drive
8 and 10 Davis Drive
5 and 9 Laboratory Drive225 and 235 Presidential Way
10055 Barnes Canyon Road104 TW Alexander Drive
10102 Hoyt Park DriveOne Hampshire Street
12 Intersection Campus12 
Redevelopment – under constructionProperties100 Edwin H. Land Boulevard
2400 Ellis Road, 40 and 41 Moore Drive, and 14 TW Alexander Drive10010 and 10140 Campus Point Drive and 4275 Campus Point Court
840 Winter Street446 and 458 Arsenal Street
20400 Century Boulevard35 Gatehouse Drive
9601 and 9603 Medical Center Drive1001 Trinity Street and 1020 Red River Street
One Rogers Street
40, 50, and 60 Sylvan RoadOther37 
Alexandria Center® for Advanced Technologies – Monte Villa Parkway
99 
Unconsolidated real estate JVs
651 Gateway BoulevardProperties held for sale10 
8800 Technology Forest PlaceTotal properties excluded from same properties179 
Canada
OtherSame properties253 
24 
Total properties in North America as of December 31, 2022
432 
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Definitions and Reconciliations (continued)
December 31, 2022
Stabilized occupancy date

The stabilized occupancy date represents the estimated date on which the project is expected to reach occupancy of 95% or greater.

Tenant recoveries

Tenant recoveries represent revenues comprising reimbursement of real estate taxes, insurance, utilities, repairs and maintenance, common area expenses, and other operating expenses and earned in the period during which the applicable expenses are incurred and the tenant’s obligation to reimburse us arises.

We classify rental revenues and tenant recoveries generated through the leasing of real estate assets within revenues in income from rentals in our consolidated statements of operations. We provide investors with a separate presentation of rental revenues and tenant recoveries in “Same Property Performance” of this Supplemental Information because we believe it promotes investors’ understanding of our operating results. We believe that the presentation of tenant recoveries is useful to investors as a supplemental measure of our ability to recover operating expenses under our triple net leases, including recoveries of utilities, repairs and maintenance, insurance, property taxes, common area expenses, and other operating expenses, and of our ability to mitigate the effect to net income for any significant variability to components of our operating expenses.

The following table reconciles income from rentals to tenant recoveries:
Three Months EndedYear Ended
(In thousands)12/31/229/30/226/30/223/31/2212/31/2112/31/2212/31/21
Income from rentals$665,674 $656,853 $640,959 $612,554 $574,656 $2,576,040 $2,108,249 
Rental revenues(499,348)(496,146)(485,067)(469,537)(435,637)(1,950,098)(1,618,592)
Tenant recoveries$166,326 $160,707 $155,892 $143,017 $139,019 $625,942 $489,657 

Total equity capitalization

Total equity capitalization is equal to the outstanding shares of common stock multiplied by the closing price on the last trading day at the end of each period presented.

Total market capitalization

Total market capitalization is equal to the sum of total equity capitalization and total debt.


Unencumbered net operating income as a percentage of total net operating income

Unencumbered net operating income as a percentage of total net operating income is a non-GAAP financial measure that we believe is useful to investors as a performance measure of the results of operations of our unencumbered real estate assets as it reflects those income and expense items that are incurred at the unencumbered property level. Unencumbered net operating income is derived from assets classified in continuing operations, which are not subject to any mortgage, deed of trust, lien, or other security interest, as of the period for which income is presented.

The following table summarizes unencumbered net operating income as a percentage of total net operating income:
 
Three Months Ended
(Dollars in thousands)
12/31/229/30/226/30/223/31/2212/31/21
Unencumbered net operating income
$464,944 $457,656 $446,473 $420,960 $390,017 
Encumbered net operating income
985 1,007 1,007 12,777 11,189 
Total net operating income$465,929 $458,663 $447,480 $433,737 $401,206 
Unencumbered net operating income as a percentage of total net operating income
100%100%100%97%97%

Weighted-average interest rate for capitalization of interest

The weighted-average interest rate required for calculating capitalization of interest pursuant to GAAP represents a weighted-average rate as of the end of the applicable period, based on the rates applicable to borrowings outstanding during the period, including expense/income related to interest rate hedge agreements, amortization of loan fees, amortization of debt premiums (discounts), and other bank fees. A separate calculation is performed to determine our weighted-average interest rate for capitalization for each month. The rate will vary each month due to changes in variable interest rates, outstanding debt balances, the proportion of variable-rate debt to fixed-rate debt, the amount and terms of interest rate hedge agreements, and the amount of loan fee and premium (discount) amortization.

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Definitions and Reconciliations (continued)
December 31, 2022
Weighted-average shares of common stock outstanding – diluted

From time to time, we enter into capital market transactions, including forward equity sales agreements (“Forward Agreements”), to fund acquisitions, to fund construction of our highly leased development and redevelopment projects, and for general working capital purposes. We are required to consider the potential dilutive effect of our Forward Agreements under the treasury stock method while the Forward Agreements are outstanding. As of December 31, 2022, we had Forward Agreements outstanding to sell an aggregate of 0.7 million shares of common stock.

The weighted-average shares of common stock outstanding used in calculating EPS – diluted, FFO per share – diluted, and FFO per share – diluted, as adjusted, during each period are calculated as follows. Also shown are the weighted-average unvested shares associated with restricted stock awards used in calculating amounts allocable to unvested stock award holders for each of the respective periods presented below:
Three Months EndedYear Ended
(In thousands)12/31/229/30/226/30/223/31/2212/31/2112/31/2212/31/21
Basic shares for earnings per share165,393 161,554 161,412 158,198 153,464 161,659 146,921 
Forward Agreements— — — — 843 — 539 
Diluted shares for earnings per share165,393 161,554 161,412 158,198 154,307 161,659 147,460 
Basic shares for funds from operations per share and funds from operations per share, as adjusted165,393 161,554 161,412 158,198 153,464 161,659 146,921 
Forward Agreements— — — 11 843 — 539 
Diluted shares for funds from operations per share and funds from operations per share, as adjusted165,393 161,554 161,412 158,209 154,307 161,659 147,460 
Unvested restricted shares used in the allocation of net income, funds from operations, and funds from operations, as adjusted1,614 1,648 1,806 1,826 1,813 1,723 1,782 
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