FORM OF MASTER CONFIRMATION FOR CONTINGENT FORWARDS

Ladies and Gentlemen:

The purpose of this communication (this “Master Confirmation”) is to set forth the terms and conditions of the transactions to be entered into from time to time (each, a “Transaction” and, collectively, the “Transactions”) between [DEALER] (“Party A”)[, represented by [●] as its agent (“Agent”),] and Easterly Government Properties, Inc. (“Party B”) in accordance with the terms of the Amended and Restated Equity Distribution Agreement (the “Distribution Agreement”), dated as of August 4, 2026, among Party A, Party B, Easterly Government Properties LP, a Delaware limited partnership (the “Operating Partnership”) and the other parties thereto. Each Transaction will be evidenced by a supplemental confirmation substantially in the form of Annex A hereto (each, a “Supplemental Confirmation”, and each such Supplemental Confirmation, together with this Master Confirmation, a “Confirmation” for purposes of the Agreement specified below). Each Confirmation will be a confirmation for purposes of Rule 10b-10 promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Each Confirmation shall supplement, form a part of and be subject to an agreement (the “Agreement”) in the form of the 1992 ISDA Master Agreement (Multicurrency—Cross Border) (the “ISDA Form”), as published by ISDA, as if Party A and Party B had executed the ISDA Form on the date hereof (but without any Schedule except for (i) the election of Loss and Second Method, New York law (without regard to New York’s choice of laws doctrine other than Title 14 of Article 5 of the New York General Obligations Law) as the governing law and US Dollars (“USD”) as the Termination Currency, and (ii) the replacement of the word “third” in the last line of Section 5(a)(i) with the word “second”. All provisions contained in the Agreement are incorporated into and shall govern each Confirmation except as expressly modified below. Each Confirmation will evidence a complete and binding agreement between Party A and Party B as to the terms of the relevant Transaction and will replace any previous agreement between the parties with respect to the subject matter thereof.

The Transactions under this Master Confirmation shall be the only Transactions under the Agreement. If there exists any ISDA Master Agreement between Party A or any of its Affiliates and Party B or any confirmation or other agreement between Party A or any of its Affiliates and Party B pursuant to which an ISDA Master Agreement is deemed to exist between Party A or any of its Affiliates and Party B, then notwithstanding anything to the contrary in such ISDA Master Agreement, such confirmation or agreement or any other agreement to which Party A or any of its Affiliates and Party B are parties, none of the Transactions to which this Master Confirmation relates shall be considered a “Transaction” under, or otherwise governed by, such existing or deemed ISDA Master Agreement. In the event of any inconsistency among the Agreement, this Master Confirmation, any Supplemental Confirmation and the Equity Definitions, the following will prevail in the order of precedence indicated: (i) such Supplemental Confirmation; (ii) this Master Confirmation; (iii) the Equity Definitions; and (iv) the Agreement.

General Terms:

Trade Date: For each Transaction, as set forth in the related Supplemental Confirmation.

Maturity Date: For each Transaction, as set forth in the related Supplemental Confirmation.

Seller: Party B

Buyer: Party A

Shares: The common stock par value $0.01 per Share, of Party B (Ticker: “DEA”)

Components: Each Transaction will be divided into a number of individual Components equal to the number of Components for such Transaction, each with the terms set forth in this Master Confirmation and the related Supplemental Confirmation, and, in particular, with the Maximum Number of Shares and Contingency Expiration Date set forth in the related Supplemental Confirmation. The payments and deliveries to be made upon settlement of each Transaction will be determined separately for each Component as if each Component were a separate Transaction under the Agreement.

Maximum Transaction Number of Shares: For each Transaction, as set forth in the related Supplemental Confirmation. For the avoidance of doubt, the Maximum Transaction Number of Shares for any Transaction shall not exceed the number of Shares introduced into the public markets by the Forward Seller (as defined in the Distribution Agreement and referred to herein as the “Forward Hedge Seller”) in connection with the Initial Hedge Position in respect of such Transaction pursuant to the Distribution Agreement.

Transaction Number of Shares: For each Transaction, initially zero; and subject to increase from time to time pursuant to the terms set forth under “Contingency Terms” below. The Calculation Agent shall promptly notify Party B of any change in the Transaction Number of Shares and the Maximum Number of Shares for each Component of such Transaction from time to time.

Maximum Number of Shares: With respect to each Component of a Transaction, the Maximum Transaction Number of Shares divided by the number of Components for such Transaction (rounded using a rounding convention determined by the Calculation Agent, with any remainder allocated to the final Component of such Transaction), as specified in the related Supplemental Confirmation. For the avoidance of doubt, the Maximum Number of Shares for any Component of a Transaction shall, if applicable, be reduced from time to time pursuant to terms set forth under “Contingency Terms” below.

Initial Forward Price: For each Transaction, initially as set forth in the related Supplemental Confirmation. The Initial Forward Price shall be decreased by the Forward Price Reduction Amounts set forth in the relevant Supplemental Confirmation under “Forward Price Reduction Amounts” on the corresponding Forward Price Reduction Dates set forth therein that occur on or before the Contingency Completion Date for such Transaction.

Forward Price: For each Transaction:

Forward Hedge Selling Commission Rate: For each Transaction, as set forth in the related Supplemental Confirmation.

Daily Rate: For any day, a rate (which may be positive or negative) equal to (i) (a) Overnight Bank Rate (or if the Overnight Bank Rate is no longer available, a successor rate selected by the Calculation Agent in its commercially reasonable discretion) for such day minus (b) the Spread divided by (ii) 360.

Overnight Bank Rate: For any day, the rate set forth for such day opposite the caption “Overnight bank funding rate”, as such rate is displayed on Bloomberg Screen “OBFR01 <Index> <GO>”, or any successor page; provided that, if no rate appears for a particular day on such page, the rate for the immediately preceding day for which a rate does so appear shall be used for such day.

Spread: For each Transaction, as set forth in the related Supplemental Confirmation.

Forward Price Reduction Dates: For each Transaction, as set forth in the related Supplemental Confirmation.

Forward Price Reduction Amounts: For each Forward Price Reduction Date, the Forward Price Reduction Amount set forth opposite such date in the Supplemental Confirmation.

Contingency Premium: For all Components comprising a Transaction, as set forth in the related Supplemental Confirmation.

Contingency Premium Payment Date: For each Transaction, the later of (i) the second Currency Business Day following the Trade Date for such Transaction and (ii) the first Currency Business Day following the date on which Party B executes the related Supplemental Confirmation evidencing such Transaction.

It shall be a condition to Party A’s obligation to pay to Party B the Contingency Premium on the Contingency Premium Payment Date that Party B shall have satisfied (or caused to have satisfied) each of the conditions set forth in Section 8 of this Master Confirmation.

Initial Share Price: For each Transaction, unless otherwise agreed between the parties, the volume-weighted average price per Share at which Forward Hedge Seller establishes the initial hedge of the equity price risk undertaken by Party A with respect to the Maximum Transaction Number of Shares for such Transaction during the Forward Hedge Selling Period (as defined in the Distribution Agreement) by selling Shares in transactions effected under the Prospectus (as defined in the Distribution Agreement (as defined below)), net of any sales commissions or other discounts as set forth in the Distribution Agreement, in amounts and at times determined by Party A (or Forward Hedge Seller) but pursuant to commercially reasonable instructions or parameters (e.g., limit prices) as Party B may notify Party A from time to time (and Party A will use good faith efforts to comply with any such instructions or parameters, subject to market conditions, and subject to applicable legal, regulatory or self-regulatory requirements or related policies and procedures (whether or not such requirements, policies or procedures are imposed by law or have been voluntarily adopted by Party A), and as set forth in the Supplemental Confirmation. The number of Shares comprising Party A’s initial hedge is referred to herein as the “Initial Hedge Position”.

Exchange: The New York Stock Exchange

Related Exchange(s): All Exchanges

Clearance System: The Depository Trust Company (“DTC”)

Prepayment: Not Applicable

Variable Obligation: Not Applicable

Contingency Provisions:

In respect of any Component:

Contingency: On any Scheduled Trading Day from, and including, the Trade Date to, and including, the Contingency Expiration Date for such Component between 9:00 a.m. (New York City time) and 7:00 p.m. (New York City time), Party A may, from time to time, designate any number of Shares with respect to such Component (the “Designated Shares” and each such Scheduled Trading Day on which such designation occurred, a “Contingency Exercise Date”) up to the then-Maximum Number of Shares with respect to such Component, in which case the Transaction Number of Shares with respect to the relevant Transaction shall be increased by such number of Designated Shares and the Maximum Number of Shares for such Component shall be reduced by such number of Designated Shares; provided that, unless Party A notifies Party B otherwise by 9:00 a.m. (New York City time) on the Scheduled Trading Day immediately following such Contingency Expiration Date), if the Reference Price is greater than the Initial Forward Price, Party A shall be deemed to have designated Designated Shares equal to the then-Maximum Number of Shares with respect to such Component. For the avoidance of doubt, subject to the immediately preceding proviso, Party A’s right to designate any Designated Shares with respect to any then-Maximum Number of Shares shall be deemed to have expired as of 7:00 p.m. (New York City time) on such Contingency Expiration Date, and the Maximum Number of Shares with respect to such Component shall be reduced to zero. At any time, the portion of the relevant Transaction corresponding to the Transaction Number of Shares is referred to herein as the “Contingency Exercised Portion,” and the remaining portion is referred to herein as the “Remaining Contingency Portion.”

Contingency Expiration Dates: As set forth in the related Supplemental Confirmation (or, if such date is not a Scheduled Trading Day, the next following Scheduled Trading Day that is not already a Contingency Expiration Date for another Component under any Transaction).

Reference Price: The official closing price of a Share on the relevant Contingency Expiration Date published on Bloomberg Page “<DEA US EQUITY> <HP>” (or any successor page thereto), or if such price is not so reported on such date for any reason or is manifestly erroneous, the Reference Price on such Contingency Expiration Date shall be determined by the Calculation Agent in good faith and in a commercially reasonable manner.

Market Disruption Event: The definition of “Market Disruption Event” in Section 6.3(a) of the Equity Definitions is hereby amended by deleting the words “at any time during the one-hour period that ends at the relevant Valuation Time, Latest Exercise Time, Knock-in Valuation Time or Knock-out Valuation

Time, as the case may be” and replacing the words “or (iii) an Early Closure” with “(iii) an Early Closure that the Calculation Agent determines is material, or (iv) a Regulatory Disruption, in each case at any time on any Scheduled Trading Day during the period commencing on, and including, the Trade Date of the relevant Transaction to, and including, the Contingency Expiration Date of such Component (such period, the “Term of a Component”) or during any Unwind Period”.

The definition of “Early Closure” in Section 6.3(d) of the Equity Definitions is hereby amended by deleting the remainder of the provision following the term “Scheduled Closing Time” in the fourth line thereof.

Notwithstanding the second and third sentences of Section 3.1(f) of the Equity Definitions, if any Scheduled Trading Day during the Term of a Component is a Disrupted Day, then Party A may postpone the Contingency Expiration Date specified in the related Supplemental Confirmation for such Transaction to a Scheduled Trading Day determined by Party A.

Regulatory Disruption: Any event that Party A, in its good faith and commercially reasonable discretion based on advice of counsel, determines makes it appropriate with regard to any legal, regulatory or self-regulatory requirements or related policies and procedures (whether or not such requirements, policies or procedures are imposed by law or have been voluntarily adopted by Party A or its affiliates), for Party A to refrain from or decrease any market activity in connection with the relevant Transaction. Whenever a Regulatory Disruption occurs, Party A shall notify Party B of such occurrence as soon as reasonably practicable under the circumstances; provided that Party A shall not be required to communicate to Party B the reason for Party A’s exercise of its rights pursuant to this provision if Party A reasonably determines in good faith that disclosing such reason may result in a violation of any legal, regulatory, or self-regulatory requirements or related policies and procedures (whether or not such requirements, policies or procedures are imposed by law or have been voluntarily adopted by Party A).

Settlement Terms:

Settlement Date: Any Scheduled Trading Day following the Contingency Completion Date for any Transaction and up to and including the Maturity Date for such Transaction that is either:

provided that such Maturity Date will be a Settlement Date if on such date the Transaction Number of Shares for such Transaction for which a Settlement Date has not already been designated is greater than zero.

Settlement Shares: (a) With respect to any Settlement Date other than the Maturity Date for such Transaction, the number of Shares designated as such by Party B in the relevant Settlement Notice or designated by Party A pursuant to the “Termination Settlement” provisions of Section 8(f) below, as applicable; provided that the Settlement Shares so designated shall not exceed the Transaction Number of Shares for such Transaction at that time; and

(b) with respect to the Settlement Date on the Maturity Date for such Transaction, a number of Shares equal to the Transaction Number of Shares for such Transaction at that time;

in each case with the Transaction Number of Shares for such Transaction determined taking into account pending Settlement Shares.

Settlement Method: Physical Settlement, Cash Settlement, or Net Share Settlement, at the election of Party B as set forth in a Settlement Notice that satisfies the Settlement Notice Requirements; provided that Physical Settlement shall apply (i) if no Settlement Method is validly selected, (ii) with respect to any Settlement Shares in respect of which Party A is unable, in good faith and in its commercially

reasonable discretion, to unwind its hedge by the end of the Unwind Period (taking into account any restrictions on Party A resulting from any Overlap Unwind Period (as defined below)) (A) in a manner that, in the reasonable discretion of Party A, is consistent with the requirements for qualifying for the safe harbor provided by Rule 10b-18 or (B) due to the occurrence of Disrupted Days or to the lack of sufficient liquidity in the Shares on any Exchange Business Day during the Unwind Period and (iii) to any Termination Settlement Date (as defined under “Termination Settlement” in Section 8(f) below); provided further that, if Physical Settlement applies under clause (ii) immediately above, Party A shall provide written notice to Party B at least one Scheduled Trading Day prior to the applicable Settlement Date.

Settlement Notice Requirements: Notwithstanding any other provision hereof, a Settlement Notice delivered by Party B that specifies Cash Settlement or Net Share Settlement will not be effective to establish a Settlement Date or require Cash Settlement or Net Share Settlement unless (i) Party B delivers to Party A with such Settlement Notice representations, dated as of the date of such Settlement Notice and signed by Party B, in the form set forth in “Settlement Method Election Representations” below and (ii) the same Settlement Method is specified to be applicable for all Components of a Transaction designated in such Settlement Notice.

Settlement Method Election

Representations: (A) Party B is not aware of any material nonpublic information concerning itself or the Shares, (B) Party B is electing Cash Settlement or Net Share Settlement in good faith and not as part of a plan or scheme to evade compliance with Rule 10b-5 under the Exchange Act (“Rule 10b-5”) or any other provision of the federal securities laws, (C) it is not making such election to create actual or apparent trading activity in the Shares (or any security convertible into or exchangeable for Shares) or to raise or depress or otherwise manipulate the price of the Shares (or any security convertible into or exchangeable for Shares), (D) such election, and settlement in accordance therewith, does not and will not violate or conflict with any law, regulation or supervisory guidance applicable to Party B, or any order or judgment of any court or other agency of government applicable to it or any of its assets, and any governmental consents that are required to have been obtained by Party B with respect to such election or settlement have been obtained and are in full force and effect and all conditions of any such consents have been complied with and (E) Party B will be able to purchase the number of Shares equal to the greater of (x) the number of Settlement Shares designated in the relevant Settlement Notice and (y) a number of Shares with a value as of the date of such Settlement Notice equal to the product of (I) such number of Settlement Shares and (II) the applicable Forward Price(s) for such Cash Settlement or Net Share

Settlement, in compliance with the laws of Party B’s jurisdiction of organization in accordance with its organizational documents and the required corporate approvals thereunder (if any).

Physical Settlement: If Physical Settlement is applicable, then Party B shall deliver to Party A through the Clearance System a number of Shares equal to the Settlement Shares for such Settlement Date, and Party A shall pay to Party B, by wire transfer of immediately available funds to an account designated by Party B, an amount equal to the Physical Settlement Amount for such Settlement Date. If, on any Settlement Date, the Shares to be delivered by Party B to Party A hereunder are not so delivered (the “Deferred Shares”), and a Forward Price Reduction Date occurs during the period from, and including, such Settlement Date to, but excluding, the date such Shares are actually delivered to Party A, then the portion of the Physical Settlement Amount payable by Party A to Party B in respect of the Deferred Shares shall be reduced by the corresponding Forward Price Reduction Amount set forth in the relevant Supplemental Confirmation under “Forward Price Reduction Amounts” for such Forward Price Reduction Date, multiplied by the number of Deferred Shares.

Physical Settlement Amount: For any Settlement Date for which Physical Settlement is applicable, an amount in cash equal to the product of (a) the Forward Price for such Transaction in effect on the relevant Settlement Date multiplied by (b) the Settlement Shares for such Settlement Date.

Cash Settlement: On any Settlement Date in respect of which Cash Settlement applies, if the Cash Settlement Amount is a positive number, Party A will pay the Cash Settlement Amount to Party B. If the Cash Settlement Amount is a negative number, Party B will pay the absolute value of the Cash Settlement Amount to Party A. Such amounts shall be paid on such Settlement Date by wire transfer of immediately available funds.

Cash Settlement Amount: An amount determined by the Calculation Agent equal to:

Net Share Settlement: On any Settlement Date in respect of which Net Share Settlement applies, if the Cash Settlement Amount is a (i) positive number, Party A shall deliver a number of Shares to Party B equal to the Net Share Settlement Shares, or (ii) negative number, Party B shall deliver a number of Shares to Party A equal to the Net Share Settlement Shares; provided that, if Party A determines in its commercially reasonable judgment that it would be required to deliver Net Share Settlement Shares to Party B, Party A may elect to deliver a portion of such Net Share Settlement Shares on one or more dates prior to the applicable Settlement Date.

Net Share Settlement Shares: With respect to a Settlement Date, the absolute value of the Cash Settlement Amount divided by the Unwind Price, with the number of Shares rounded up in the event such calculation results in a fractional number.

Unwind Period: The period from and including the first Exchange Business Day following the date Party B validly elects Cash Settlement or Net Share Settlement in respect of a Settlement Date through the Exchange Business Day preceding such Settlement Date, subject to “Other Forwards” as described in 8(d) below and “Termination Settlement” as described in Section 8(f) below.

Other Applicable Provisions: To the extent Party A or Party B is obligated to deliver Shares hereunder, the provisions of Sections 9.2 (last sentence only), 9.4, 9.8, 9.9, 9.10 and 9.11 of the Equity Definitions will be applicable as if “Physical Settlement” applied to the Transaction; provided that, in such case, with respect to any delivery of Shares by Party A, the Representation and Agreement contained in Section 9.11 of the Equity Definitions shall be modified by excluding any representations therein relating to restrictions, obligations, limitations or requirements under applicable securities laws that exist as a result of the fact that Party B is the issuer of the Shares.

Share Adjustments; Dividends:

Method of Adjustment: Calculation Agent Adjustment. For the avoidance of doubt, in making any adjustments under the Equity Definitions, the Calculation Agent may make commercially reasonable adjustments, if any, to any one or more of the Initial Forward Price, the Forward Price, the Maximum Number of Shares for any Component and the Transaction Number of Shares. Notwithstanding the foregoing, any cash dividends or distributions on the Shares, whether or not extraordinary, shall be governed by the provisions of “Dividend Adjustment” below in lieu of Article 10 or Section 11.2(c) of the Equity Definitions with respect to the Remaining Contingency Portion of each Transaction or by the provisions of “Acceleration Events” and “Termination Settlement” as described in Section 8(e) and Section 8(f), respectively, below with respect to the Contingency Exercised Portion of such Transaction.

Dividend Adjustment: If at any time during the period from, and including, a Forward Price Reduction Date for a Transaction to, and including, the succeeding Forward Price Reduction Date, an ex-dividend date for any cash dividend occurs with respect to the Shares (an “Ex-Dividend Date”), and that dividend is greater than the Forward Price Reduction Amount corresponding to such succeeding Forward Price Reduction Date on a per Share basis, then the Calculation Agent will adjust one or more of the Initial Forward Price, the Maximum Number of Shares for any Component of such Transaction or any other variable relevant to the valuation, exercise, settlement, payment or other terms of such Component to preserve the fair value of the Remaining Contingency Portion of the Transaction after taking into account such dividend.

Extraordinary Events: Notwithstanding anything to the contrary in the Equity Definitions, with respect to the Remaining Contingency Portion of any Transaction, the consequences of any Extraordinary Event or any Announcement Event shall be as specified below in this Section 2 of this Master Confirmation, and with respect to the Contingency Exercised Portion of such Transaction, the consequences of any Extraordinary Event shall be as specified below under the headings “Acceleration Events” and “Termination Settlement” in Section 8(e) and Section 8(f), respectively.

New Shares: Section 12.1(i) of the Equity Definitions is hereby amended (a) by deleting the text in clause (i) thereof in its entirety (including the word “and” following clause (i)) and replacing it with the phrase “publicly quoted, traded or listed (or whose related depositary receipts are publicly quoted, traded or listed) on any of the New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or their respective successors)” and (b) by inserting immediately prior to the period the

phrase “and (iii) of an entity or person that is a corporation organized under the laws of the United States, any State thereof or the District of Columbia that also becomes Party B under the applicable Transaction following such Merger Event or Tender Offer”.

Consequence of Merger Events:

Merger Event: Applicable.

Share-for-Share: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Share-for-Other: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Share-for-Combined: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Consequence of Tender Offers:

Tender Offer: Applicable; provided that Section 12.1(d) of the Equity Definitions shall be amended by replacing the reference therein to “10%” with a reference to “20%.”

Share-for-Share: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Share-for-Other: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Share-for-Combined: Modified Calculation Agent Adjustment or Cancellation and Payment, at the election of Party A.

Composition of Combined

Consideration: Not Applicable; provided that, notwithstanding Sections 12.1 and 12.5(b) of the Equity Definitions, to the extent that the composition of the consideration for the relevant Shares pursuant to a Tender Offer or Merger Event could be determined by a holder of the Shares, the Calculation Agent will determine such composition.

Announcement Event: If (i) an Announcement Date occurs in respect of any event or transaction that would, if consummated, lead to a Merger Event (for purposes of this and related provisions, the definition of Merger Event shall be read with the references therein to “100%” being replaced by “35%” and without reference to the clause beginning immediately following the definition of Reverse Merger therein to the end of such definition), a Tender Offer, or other acquisition or disposition by Party B or its subsidiaries where the aggregate consideration or value exceeds 35% of the market capitalization of Party B as of the Announcement Date (such other acquisition or disposition, a “Significant Transaction”) or (ii) there is a public announcement by Party B of an intention to solicit or enter into, or to explore

strategic alternatives or other similar undertakings that may include, a Merger Event, Tender Offer or Significant Transaction, or any subsequent public announcement by Party B of a change to such intention (the occurrence of (i) or (ii), an “Announcement Event”), as determined by the Calculation Agent, then the “Consequences of Announcement Event” set forth below shall apply in respect of such Announcement Event. For purposes of any Transaction, a Significant Transaction shall be an Extraordinary Event.

Announcement Date: The definition of “Announcement Date” in Section 12.1(l) of the Equity Definitions is hereby amended by (i) adding the words “or a Significant Transaction” immediately following the words “Merger Event” in the second and third lines thereof, (ii) replacing the words “a firm” with the word “any” in the second and fourth lines thereof, (iii) replacing the word “leads to the” with the words “would, if consummated, lead to a” in the third and the fifth lines thereof, (iv) adding after the words “voting shares” in the fifth line thereof the words “, voting power or Shares”, (v) inserting the words “by Party B, any agent of Party B, a Valid Third Party Entity or any agent of a Valid Third Party Entity” after the word “announcement” in the second and the fourth lines thereof and (vi) inserting the words “, as determined by the Calculation Agent, or any subsequent public announcement by Party B, any agent of Party B, a Valid Third Party Entity or any agent of a Valid Third Party Entity of a change to such transaction or intention (including, without limitation, a new announcement, whether or not by the same party, relating to such a transaction or intention or the announcement of a withdrawal from, or the abandonment or discontinuance of, such a transaction or intention)” at the end of each of clauses (i) and (ii) thereof.

Valid Third Party: In respect of any transaction or event, any third party that has a bona fide intent to enter into or consummate such transaction or event (it being understood and agreed that in determining whether such third party has such a bona fide intent, the Calculation Agent may take into consideration the effect of the relevant announcement by such third party on the Shares and/or options relating to the Shares).

Consequences of Announcement Event: With respect to any Announcement Event, the Calculation Agent shall determine the economic effect of such Announcement Event on the theoretical value of each Component of the Transaction to Party A (including without limitation any change in volatility, expected dividends, stock loan rate or liquidity relevant to the Shares or to the Transaction) (i) one or more times on or after the relevant Announcement Date or other date of announcement and (ii) on the Contingency Expiration Date or any earlier date of termination or cancellation for such Component and, in the case of clause (i) or (ii), (x) the Calculation Agent shall adjust the terms of such

Component to account for such economic effect and determine the effective date of such adjustment or (y) if the Calculation Agent determines, on or after the Announcement Date or other date of announcement, that no adjustment it could make under clause (x) above is likely to produce a commercially reasonable result, may notify the parties that such Component of the Transaction will be terminated, in which case the amount payable upon such termination will be determined pursuant to the terms of this Master Confirmation as if such Announcement Event were an Extraordinary Event to which Cancellation and Payment were applicable. For the avoidance of doubt, any such adjustment shall be without prejudice to the application of the provisions set forth in the preceding sentence, “Consequences of Merger Events” or “Consequences of Tender Offers” with respect to any other Announcement Date in respect of the same event or transaction, or, if the related Merger Date or Tender Offer Date occurs on or prior to the Contingency Expiration Date or earlier date of termination or cancellation for such Component, with respect to the related Merger Event or Tender Offer; provided that any such adjustment shall be taken into account by the Calculation Agent or the Determining Party, as the case may be, in determining any subsequent adjustment to the terms of the Transaction, or in subsequently determining any payment amount, Cancellation Amount or Early Termination Amount, as the case may be, on account of any related Announcement Date, Merger Event or Tender Offer.

Nationalization, Insolvency or Delisting: Cancellation and Payment; provided that, in addition to the provisions of Section 12.6(a)(iii) of the Equity Definitions, it will also constitute a Delisting if the Exchange is located in the United States and the Shares are not immediately re-listed, re-traded or re-quoted on any of the New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or their respective successors); if the Shares are immediately re-listed, re-traded or re-quoted on any of the New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or their respective successors), such exchange or quotation system shall thereafter be deemed to be the Exchange.

Limitation on Certain Adjustments: Notwithstanding any provision of the Equity Definitions or this Master Confirmation to the contrary, no adjustment as a result of a Potential Adjustment Event (other than a Potential Adjustment Event described in Section 11.2(e)(i) or (ii)(A) of the Equity Definitions) or an Extraordinary Event shall increase the Maximum Transaction Number of Shares. Notwithstanding any provision of the Equity Definitions or this Master Confirmation to the contrary, if the Calculation Agent determines that no such adjustment that it could make in accordance with the preceding sentence will produce a commercially reasonable result, then the Calculation Agent may notify the parties that the

consequence of such event shall be the termination of such Transaction, in which case “Cancellation and Payment” will be deemed to apply and any payment to be made by one party to the other shall be calculated in accordance with Section 12.7 of the Equity Definitions.

Additional Disruption Events:

Change in Law: Applicable; provided that Section 12.9(a)(ii) of the Equity Definitions is hereby amended by (i) replacing the phrase “the interpretation” in the third line thereof with the phrase “or announcement or statement of the formal or informal interpretation”, (ii) deleting the words “a party to such Transaction” in the fifth line thereof and replacing them with the words “Party A”, (iii) replacing the word “Shares” with “Hedge Positions” in the sixth line thereof, (iv) immediately following the word “Transaction” in clause (X) thereof, adding the phrase “in the manner contemplated by the Hedging Party on the Trade Date” and (v) adding the words “, or holding, acquiring or disposing of Shares or any Hedge Positions relating to,” after the word “under” in clause (Y) thereof.

Failure to Deliver: Not Applicable

Insolvency Filing: Applicable

Hedging Disruption: Applicable; provided that:

(i) Section 12.9(a)(v) of the Equity Definitions is hereby amended by (a) inserting the following words at the end of clause (A) thereof: “in the manner contemplated by the Hedging Party on the Trade Date” and (b) inserting the following two phrases at the end of such Section:

“For the avoidance of doubt, the term “equity price risk” shall be deemed to include, but shall not be limited to, stock price and volatility risk. And, for the further avoidance of doubt, any such transactions or assets referred to in phrases (A) or (B) above must be available on commercially reasonable pricing terms.”; and

(ii) Section 12.9(b)(iii) of the Equity Definitions is hereby amended by inserting in the third line thereof, after the words “to terminate the Transaction”, the words “or a portion of the Transaction affected by such Hedging Disruption”.

Increased Cost of Hedging: Applicable.

Loss of Stock Borrow: Applicable.

Maximum Stock Loan Rate: [•] basis points.

Increased Cost of Stock Borrow: Applicable.

Initial Stock Loan Rate: [•] basis points.

Hedging Party: For all applicable Additional Disruption Events, Party A.

Determining Party: For all applicable Extraordinary Events, Party A, whose judgments, determinations and calculations shall be made in good faith and in a commercially reasonable manner; provided that, following any determination or calculation by the Determining Party hereunder, upon a request by Party B, the Determining Party shall promptly (but in any event within three Scheduled Trading Days) provide to Party B by e-mail to the e-mail address provided by Party B in such request a report (in a commonly used file format for the storage and manipulation of financial data) displaying in reasonable detail the basis for such determination or calculation (including any assumptions used in making such determination or calculation), it being understood that the Determining Party shall not be obligated to disclose any proprietary or confidential models or other proprietary or confidential information used by it for such determination or calculation.

Non-Reliance: Applicable.

Agreements and Acknowledgments

Regarding Hedging Activities: Applicable.

Additional Acknowledgments: Applicable.

To be advised.

Account for delivery of Shares from Party B:

To be advised.

Account for delivery of Shares to Party B:

To be advised.

To be advised.

Account for delivery of Shares from Party A:

To be advised.

Account for delivery of Shares to Party A:

To be advised.

[•]

[•]

[Signature page follows.]

Please confirm by signing below that the foregoing correctly sets forth the terms of the agreement between Party A and Party B with respect to any Transaction contemplated by this Master Confirmation and return to us.

Yours faithfully,

Confirmed as of the date first above written:

EASTERLY GOVERNMENT PROPERTIES, INC.

By:
Name:
Title:

APPENDIX 1

ADDITIONAL PROVISIONS

Share Termination Alternative: If applicable, Party B shall deliver to Party A the Share Termination Delivery Property on the date (the “Share Termination Payment Date”) on which the Payment Obligation would otherwise be due pursuant to Section 12.7 or Section 12.9 of the Equity Definitions or Section 6(d)(ii) of the Agreement, as applicable, subject to Paragraph (l)(i) below, in satisfaction, subject to Paragraph (l)(ii) below, of the relevant Payment Obligation, in the manner reasonably requested by Party A free of payment.

Share Termination Delivery Property: A number of Share Termination Delivery Units, as calculated by the Calculation Agent, equal to the relevant Payment Obligation divided by the Share Termination Unit Price. The Calculation Agent shall adjust the amount of Share Termination Delivery Property by replacing any fractional portion of a security therein with an amount of cash equal to the value of such fractional security based on the values used to calculate the Share Termination Unit Price (without giving effect to any discount pursuant to Paragraph (l)(i) below).

Share Termination Unit Price: The value to Party A of property contained in one Share Termination Delivery Unit on the date such Share Termination Delivery Units are to be delivered as Share Termination Delivery Property, as determined by the Calculation Agent in its discretion by commercially reasonable means. In the case of a Private Placement of Share Termination Delivery Units that are Restricted Shares (as defined below), as set forth in Paragraph (l)(i) below, the Share Termination Unit Price shall be determined by the discounted price applicable to such Share Termination Delivery Units. In the case of a Registration Settlement of Share Termination Delivery Units that are Restricted Shares (as defined below) as set forth in Paragraph (l)(ii) below, notwithstanding the foregoing, the Share Termination Unit Price shall be the Reference Price on the Merger Date, Tender Offer Date, Announcement Date (in the case of a Nationalization, Insolvency or Delisting), Early

Termination Date or date of cancellation, as applicable. The Calculation Agent shall notify Party B of the Share Termination Unit Price at the time of notification of such Payment Obligation to Party B or, if applicable, at the time the discounted price applicable to the relevant Share Termination Units is determined pursuant to Paragraph (l)(i).

Share Termination Delivery Unit: One Share or, if the Shares have changed into cash or any other property or the right to receive cash or any other property as the result of a Nationalization, Insolvency or Merger Event (any such cash or other property, the “Exchange Property”), a unit consisting of the type and amount of Exchange Property received by a holder of one Share (without consideration of any requirement to pay cash or other consideration in lieu of fractional amounts of any securities) in such Nationalization, Insolvency or Merger Event. If such Nationalization, Insolvency or Merger Event involves a choice of Exchange Property to be received by holders, such holder shall be deemed to have elected to receive the maximum possible amount of cash.

Failure to Deliver: Inapplicable

Other applicable provisions: If Share Termination Alternative is applicable, the provisions of Sections 9.8, 9.9, 9.11 and 9.12 (as modified above) of the Equity Definitions will be applicable, except that all references in such provisions to “Physically-settled” shall be read as references to “Share Termination Settled” and all references to “Shares” shall be read as references to “Share Termination Delivery Units”. “Share Termination Settled” in relation to a Transaction means that the Share Termination Alternative is applicable to such Transaction.

(A) deleting (1) subsection (A) in its entirety, (2) the phrase “or (B)” following subsection (A) and (3) the phrase “in each case” in subsection (B); and

(B) replacing the phrase “neither the Non-Hedging Party nor the Lending Party lends Shares” with the phrase “such Lending Party does not lend Shares” in the penultimate sentence.

(A) adding the word “or” immediately before subsection “(B)” and deleting the comma at the end of subsection (A); and

(B) (1) deleting subsection (C) in its entirety, (2) deleting the word “or” immediately preceding subsection (C), (3) deleting the penultimate sentence in its entirety and replacing it with the sentence “The Hedging Party will determine the Cancellation Amount payable by one party to the other.” and (4) deleting clause (X) in the final sentence.

(A) adding the word “or” immediately before subsection “(B)” and deleting the comma at the end of subsection (A); and

(B) (1) deleting subsection (C) in its entirety, (2) deleting the word “or” immediately preceding subsection (C) and (3) deleting the final sentence in its entirety and replacing it with the sentence “The Hedging Party will determine the Cancellation Amount payable by one party to the other.”

EXHIBIT A

FORM OF SUPPLEMENTAL CONFIRMATION

Date: [___], 20[___]

From: [Dealer Name] (“Party A”)

To: Easterly Government Properties, Inc. (“Party B”)

The purpose of this Supplemental Confirmation is to confirm the terms and conditions of the Transaction entered into between [Party A Name] (“Party A”) and Easterly Government Properties, Inc. (“Party B”), on the Trade Date specified below. This Supplemental Confirmation is a binding contract between Party A and Party B as of the relevant Trade Date for the Transaction referenced below.

1. This Supplemental Confirmation supplements, forms part of, and is subject to the Master Confirmation – Contingent Forward Transactions dated as of August 4, 2026 between Party A and Party B (as amended and supplemented from time to time, the “Master Confirmation”). All provisions contained in the Agreement (as modified and as defined in the Master Confirmation) shall govern this Supplemental Confirmation, except as expressly modified below, and capitalized terms used but not defined herein shall have the meanings specified in the Master Confirmation.

2. The terms of the Transaction to which this Supplemental Confirmation relates are as follows:

The Forward Price Reduction Dates and Forward Price Reduction Amounts for the Transaction are as set forth below.

For each Component of the Transaction, the Maximum Number of Shares and the Contingency Expiration Dates are as set forth below.

[Signature Page Follows.]

Party B hereby agrees (a) to check this Supplemental Confirmation carefully and immediately upon receipt so that errors or discrepancies can be promptly identified and rectified and (b) to confirm that the foregoing correctly sets forth the terms of the agreement between us with respect to the particular Transaction to which this Supplemental Confirmation relates by manually signing this Supplemental Confirmation and providing any other information requested herein or in the Master Confirmation and immediately sending an executed copy to us.

Yours sincerely,

Confirmed as of the date first above written:

EASTERLY GOVERNMENT PROPERTIES, INC.

By:
Name:
Title: