v3.26.3
Pay vs Performance Disclosure - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
In accordance with rules adopted by the Securities and Exchange Commission pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, we provide the following disclosure regarding executive compensation for our principal executive officer (“PEO”) and Non-PEO NEOs and Company performance for the fiscal years listed below. For the most recently completed fiscal year, we did not use any financial performance measure to link Compensation Actually Paid to our NEOs to the Company’s performance; accordingly, this disclosure does not present a company-selected measure in the table below nor a tabular list of our most important performance measures, as permitted under the rules promulgated by the Securities and Exchange Commission.
 
Year
   Summary
Compensation
Table Total
for PEO1

($)
     Compensation
Actually Paid to
PEO1, 2, 3

($)
     Average
Summary
Compensation
Table Total
for Non-PEO
NEOs1

($)
     Average
Compensation
Actually Paid to
Non-PEO
NEOs1,2,3

($)
     Value of Initial
Fixed $100
Investment based
on:4
     Net Income
($ Millions)
 
   TSR
($)
     Peer
Group
TSR
($)
 
2025
     12,277,916        18,587,740        3,206,544        4,815,261        216.01        66.11        (204.4 ) 
2024
     4,272,299        17,389,937        1,790,789        6,201,653        157.18        36.63        (97.0 ) 
2023
     3,874,300        2,219,787        1,740,206        1,235,658        64.17        42.91        (57.5 ) 
2022
     2,667,997        6,079,613        1,190,292        2,247,169        88.95        48.02        (161.8 ) 
2021
     3,892,610        1,265,141        1,530,003        519,760        39.90        76.63        (122.2 ) 
 
1.
Paul Bolno, MD., MBA was our PEO for each year presented. The individuals comprising the Non-PEO NEOs for each year presented are listed below.
 
2021
 
2022
 
2023
 
2024
 
2025
Michael Panzara, M.D., MPH   Kyle Moran, CFA   Kyle Moran, CFA   Christopher Francis, Ph.D.   Christopher Francis, Ph.D.
Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.   Kyle Moran, CFA   Kyle Moran, CFA
      Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.
 
2.
The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K and do not reflect compensation actually earned, realized, or received by the Company’s NEOs. These amounts reflect the Summary Compensation Table Total with certain adjustments as described in footnote 3 below.
3.
Compensation Actually Paid reflects the exclusions and inclusions of certain amounts for the PEO and the Non-PEO NEOs as set forth below. Equity values are calculated in accordance with FASB ASC Topic 718. Amounts in the Exclusion of Stock and Option Awards column are the totals from the Stock Awards and Option Awards columns set forth in the Summary Compensation Table.
 
Year
   Summary
Compensation
Table Total
for PEO

($)
     Exclusion of
Stock and
Option Awards
for PEO

($)
     Inclusion of
Equity Values
for PEO

($)
     Compensation
Actually Paid to
PEO

($)
 
2025
     12,277,916        (10,926,840 )       17,236,664        18,587,740  
 
Year
   Average
Summary
Compensation
Table Total for
Non-PEO
NEOs

($)
     Average
Exclusion of
Stock and
Option Awards
for Non-PEO
NEOs

($)
     Average
Inclusion of
Equity Values
for Non-PEO
NEOs

($)
     Average
Compensation
Actually Paid to
Non-PEO
NEOs

($)
 
2025
     3,206,544        (2,393,803 )       4,002,520        4,815,261  
 
The amounts in the Inclusion of Equity Values in the tables above are derived from the amounts set forth in the following tables:
 
Year
  
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
PEO

($)
    
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for PEO

($)
   
Fair Value at
Last Day of
Prior Year of
Equity
Awards
Forfeited
During Year
for PEO

($)
    
Total -
Inclusion of

Equity
Values for
PEO

($)
 
2024
     15,587,325        3,991,413        —            (2,342,074 )      —            17,236,664  
 
Year
  
Average
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
Non-PEO
NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
Non-PEO
NEOs

($)
    
Average
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for Non-PEO

NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for Non-PEO

NEOs

($)
   
Average Fair
Value at Last
Day of Prior
Year of
Equity
Awards
Forfeited
During Year
for Non-PEO
NEOs

($)
    
Total -
Average
Inclusion of

Equity
Values for
Non-PEO
NEOs

($)
 
2024
     3,417,171        1,359,130        —            (773,781 )      —            4,002,520  
 
4.
The Peer Group TSR set forth in this table utilizes the peer companies used for compensation benchmarking purposes, which are summarized in our Compensation Discussion & Analysis section of the proxy statement, for the years reflected in the table above. The comparison assumes $100 was invested for the period starting December 31, 2020, through the end of the listed year in the Company and in the compensation benchmarking peers, respectively. Historical stock performance is not necessarily indicative of future stock performance. For 2025, for better alignment with compensation peer selection criteria, we updated our peer group from prior years by adding uniQure N.V. and removing Sangamo Therapeutics, Inc. The current peer group is shown below. The peer group TSR performance for the 2024 peer group disclosed in our 2025 proxy statement, absent this change, would have been, for the years ending 12/31/2021, 12/31/2022, 12/31/2023, 12/31/2024, and 12/31/2025 respectively: $
76
.00, $46.36, $41.97, $34.94, and $63.37.
 
2025
Alector, Inc.    Denali Therapeutics Inc.    Prime Medicine, Inc
Arcturus Therapeutics Holdings Inc.    Dyne Therapeutics, Inc.    PTC Therapeutics, Inc.
Arrowhead Pharmaceuticals Inc    Editas Medicine, Inc.    Stoke Therapeutics, Inc.
Avidity Biosciences Inc.    Intellia Therapeutics, Inc.    uniQure N.V.
Beam Therapeutics, Inc.    Ionis Pharmaceuticals, Inc.    Verve Therapeutics, Inc.
       
Named Executive Officers, Footnote
2021
 
2022
 
2023
 
2024
 
2025
Michael Panzara, M.D., MPH   Kyle Moran, CFA   Kyle Moran, CFA   Christopher Francis, Ph.D.   Christopher Francis, Ph.D.
Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.   Kyle Moran, CFA   Kyle Moran, CFA
      Chandra Vargeese, Ph.D.   Chandra Vargeese, Ph.D.
       
Peer Group Issuers, Footnote The Peer Group TSR set forth in this table utilizes the peer companies used for compensation benchmarking purposes, which are summarized in our Compensation Discussion & Analysis section of the proxy statement, for the years reflected in the table above. The comparison assumes $100 was invested for the period starting December 31, 2020, through the end of the listed year in the Company and in the compensation benchmarking peers, respectively. Historical stock performance is not necessarily indicative of future stock performance.        
PEO Total Compensation Amount $ 12,277,916 $ 4,272,299 $ 3,874,300 $ 2,667,997 $ 3,892,610
PEO Actually Paid Compensation Amount $ 18,587,740 17,389,937 2,219,787 6,079,613 1,265,141
Adjustment To PEO Compensation, Footnote
Year
   Summary
Compensation
Table Total
for PEO

($)
     Exclusion of
Stock and
Option Awards
for PEO

($)
     Inclusion of
Equity Values
for PEO

($)
     Compensation
Actually Paid to
PEO

($)
 
2025
     12,277,916        (10,926,840 )       17,236,664        18,587,740  
 
Year
   Average
Summary
Compensation
Table Total for
Non-PEO
NEOs

($)
     Average
Exclusion of
Stock and
Option Awards
for Non-PEO
NEOs

($)
     Average
Inclusion of
Equity Values
for Non-PEO
NEOs

($)
     Average
Compensation
Actually Paid to
Non-PEO
NEOs

($)
 
2025
     3,206,544        (2,393,803 )       4,002,520        4,815,261  
 
The amounts in the Inclusion of Equity Values in the tables above are derived from the amounts set forth in the following tables:
 
Year
  
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
PEO

($)
    
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for PEO

($)
   
Fair Value at
Last Day of
Prior Year of
Equity
Awards
Forfeited
During Year
for PEO

($)
    
Total -
Inclusion of

Equity
Values for
PEO

($)
 
2024
     15,587,325        3,991,413        —            (2,342,074 )      —            17,236,664  
 
Year
  
Average
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
Non-PEO
NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
Non-PEO
NEOs

($)
    
Average
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for Non-PEO

NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for Non-PEO

NEOs

($)
   
Average Fair
Value at Last
Day of Prior
Year of
Equity
Awards
Forfeited
During Year
for Non-PEO
NEOs

($)
    
Total -
Average
Inclusion of

Equity
Values for
Non-PEO
NEOs

($)
 
2024
     3,417,171        1,359,130        —            (773,781 )      —            4,002,520  
       
Non-PEO NEO Average Total Compensation Amount $ 3,206,544 1,790,789 1,740,206 1,190,292 1,530,003
Non-PEO NEO Average Compensation Actually Paid Amount $ 4,815,261 6,201,653 1,235,658 2,247,169 519,760
Adjustment to Non-PEO NEO Compensation Footnote
Year
   Summary
Compensation
Table Total
for PEO

($)
     Exclusion of
Stock and
Option Awards
for PEO

($)
     Inclusion of
Equity Values
for PEO

($)
     Compensation
Actually Paid to
PEO

($)
 
2025
     12,277,916        (10,926,840 )       17,236,664        18,587,740  
 
Year
   Average
Summary
Compensation
Table Total for
Non-PEO
NEOs

($)
     Average
Exclusion of
Stock and
Option Awards
for Non-PEO
NEOs

($)
     Average
Inclusion of
Equity Values
for Non-PEO
NEOs

($)
     Average
Compensation
Actually Paid to
Non-PEO
NEOs

($)
 
2025
     3,206,544        (2,393,803 )       4,002,520        4,815,261  
 
The amounts in the Inclusion of Equity Values in the tables above are derived from the amounts set forth in the following tables:
 
Year
  
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
PEO

($)
    
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for PEO

($)
    
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for PEO

($)
   
Fair Value at
Last Day of
Prior Year of
Equity
Awards
Forfeited
During Year
for PEO

($)
    
Total -
Inclusion of

Equity
Values for
PEO

($)
 
2024
     15,587,325        3,991,413        —            (2,342,074 )      —            17,236,664  
 
Year
  
Average
Year-End
Fair Value of
Equity
Awards
Granted
During Year
That
Remained
Unvested as
of Last Day
of Year for
Non-PEO
NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to Last
Day of Year
of Unvested
Equity
Awards for
Non-PEO
NEOs

($)
    
Average
Vesting-Date

Fair Value of
Equity
Awards
Granted
During Year
that Vested
During Year
for Non-PEO

NEOs

($)
    
Average
Change in
Fair Value
from Last
Day of Prior
Year to
Vesting Date
of Unvested
Equity
Awards that
Vested
During Year
for Non-PEO

NEOs

($)
   
Average Fair
Value at Last
Day of Prior
Year of
Equity
Awards
Forfeited
During Year
for Non-PEO
NEOs

($)
    
Total -
Average
Inclusion of

Equity
Values for
Non-PEO
NEOs

($)
 
2024
     3,417,171        1,359,130        —            (773,781 )      —            4,002,520  
       
Compensation Actually Paid vs. Total Shareholder Return
Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Total Stockholder Return (“TSR”)
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and the cumulative TSR over the five most recently completed fiscal years for the Company and the Peer Group TSR.
 
 
LOGO
       
Compensation Actually Paid vs. Net Income
Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Net Income
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and our net income during the five most recently completed fiscal years.
 
 
LOGO
       
Total Shareholder Return Vs Peer Group
Relationship Between PEO and Non-PEO NEO Compensation Actually Paid and Total Stockholder Return (“TSR”)
The following chart sets forth the relationship between Compensation Actually Paid to our PEO, the average of Compensation Actually Paid to our Non-PEO NEOs, and the cumulative TSR over the five most recently completed fiscal years for the Company and the Peer Group TSR.
 
 
LOGO
       
Total Shareholder Return Amount $ 216.01 157.18 64.17 88.95 39.9
Peer Group Total Shareholder Return Amount 66.11 36.63 42.91 48.02 76.63
Net Income (Loss) $ (204,400,000) (97,000,000) $ (57,500,000) $ (161,800,000) $ (122,200,000)
PEO Name Paul Bolno        
PEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ 17,236,664        
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   15,587,325      
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   3,991,413      
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   0      
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   (2,342,074)      
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   0      
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   17,236,664      
PEO | Stock and Option Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (10,926,840)        
Non-PEO NEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 4,002,520        
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   3,417,171      
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   1,359,130      
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   0      
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   (773,781)      
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   0      
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount   $ 4,002,520      
Non-PEO NEO | Stock and Option Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (2,393,803)