v3.26.1
Pay vs Performance Disclosure - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pay vs Performance Disclosure      
Pay vs Performance Disclosure, Table
PAY VERSUS PERFORMANCE
As required by Item 402(v) of Regulation S-K, we are providing the following information about the relationship between “compensation actually paid” to our named executive officers (“NEOs”), including our principal executive officer (“PEO”) and certain financial performance of the Company. As we are a “smaller reporting company,” as defined under Item 10(f)(1) of Regulation S-K, we are providing information relating only to fiscal years 2025, 2024 and 2023.
Year
(a)
Summary
Compensation
Table Total
for PEO(1)
($)
(b)
Compensation
Actually Paid
to PEO(2)
($)
(c)
Average
Summary
Compensation
Table Total
for Non-PEO
NEOs(3)
($)
(d)
Average
Compensation
Actually Paid
to Non-PEO
NEOs(4)
($)
(e)
Value of Initial Fixed
$100 Investment
Based On:
Net Income
(thousands)(6)
($)
(h)
Total Shareholder
Return(5)
($)
(f)
2025
4,222,265
9,637,099
2,009,530
3,596,263
44.35
(274,448)
2024
1,495,376
(3,237,463)
1,606,237
72,810
18.44
(342,994)
2023
2,647,476
(7,936,183)
3,210,333
1,129,554
55.91
(234,632)
(1)
The dollar amounts reported in column (b) are the amounts of total compensation reported for Lynn Seely, M.D., our President and Chief Executive Officer, for all three years reported in the “Total” column of the Summary Compensation Table. Refer to “Executive Compensation—Summary Compensation Table.”
(2)
The dollar amounts reported in column (c) represent the amounts of “compensation actually paid” to Dr. Seely, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Dr. Seely during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to Dr. Seely’s total compensation for each year to determine the compensation actually paid:
Year
Reported
Summary Compensation
Table Total for PEO
($)
Reported
Value of Equity
Awards for
PEO (a)
($)
Equity
Award Adjustments for
PEO (b)
($)
Compensation Actually
Paid to PEO
($)
2025
4,222,265
3,094,357
8,509,191
9,637,099
2024
1,495,376
474,000
(4,258,839)
(3,237,463)
2023
2,647,476
1,685,250
(8,898,409)
(7,936,183)
(a)
The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the Summary Compensation Table for the applicable year.
(b)
The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the applicable year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts deducted or added in calculating the equity award adjustments are as follows:
Year
Year End
Fair Value of
Equity
Awards for
PEO
($)
Change in Fair
Value of
Outstanding
and Unvested
Equity Awards
for PEO
($)
Fair Value as
of Vesting
Date of Equity
Awards Granted and
Vested in the
Year for PEO
($)
Change in Fair
Value of Equity
Awards Granted in
Prior Years that
Vested in the Year
for PEO
($)
Fair Value at the
End of the Prior
Year of Equity
Awards that Failed
to Meet Vesting
Conditions in the
Year for PEO
($)
Total Equity
Award
Adjustments
for PEO
($)
2025
5,950,339
2,447,420
179,712
(42,400)
(25,880)
8,509,191
2024
585,540
(4,464,450)
(379,929)
(4,258,839)
2023
(7,001,445)
(1,896,964)
(8,898,409)
(3)
The dollar amounts reported in column (d) represent the average of the amounts reported for the NEOs as a group (excluding our PEO) in the “Total” column of the Summary Compensation Table in each applicable year. The NEOs (excluding our PEO) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2025, Stephen Hill and Gary Lee, Ph.D.; (i) for 2024, Stephen Hill and Matthew Lang (our former Chief Business Officer); and (ii) for 2023, Charles Newton (our former Chief Financial Officer), Stephen Hill, Matthew Lang, Gary Lee, Ph.D. and Tina Albertson, M.D., Ph.D.
(4)
The dollar amounts reported in column (e) represent the average amount of “compensation actually paid” to the NEOs as a group (excluding our PEO), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding our PEO) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to average total compensation for the NEOs as a group (excluding our PEO) for each year to determine the compensation actually paid, using the same methodology described above in Note (2)(b):
Year
Average
Reported Summary
Compensation Table
Total for Non-PEO NEOs
($)
Average
Reported
Value of Equity
Awards
($)
Average Equity
Award Adjustments(a)
($)
Average Compensation
Actually Paid to Non-
PEO NEOs
($)
2025
2,009,530
1,200,846
2,787,579
3,596,263
2024
1,606,237
666,450
(866,977)
72,810
2023
3,210,333
2,410,690
329,911
1,129,554
(a)
The amounts deducted or added in calculating the total average equity award adjustments are as follows:
Year
Average
Year End Fair
Value of Equity
Awards
($)
Average
Change in
Fair Value of
Outstanding
and Unvested
Equity
Awards
($)
Average Fair
Value as of
Vesting Date
of Equity
Awards
Granted and
Vested in the
Year
($)
Average
Change in
Fair Value of
Equity
Awards
Granted in
Prior Years
that Vested
in the Year
($)
Average Fair
Value at the
End of the
Prior Year of
Equity Awards
that Failed to
Meet Vesting
Conditions in
the Year
($)
Total Average
Equity Award
Adjustments
($)
2025
2,255,953
478,251
59,925
(1,374)
(5,176)
2,787,579
2024
281,657
(1,076,339)
87,042
(159,337)
(866,977)
2023
1,043,424
(536,147)
172,101
(106,207)
(243,260)
329,911
(5)
For the relevant fiscal year, represents the cumulative total stockholder return of our common stock at the end of such fiscal year. In each case, assume an initial investment of $100 on December 31, 2021.
(6)
The dollar amounts reported represent the amount of net loss reflected in our audited financial statements for the applicable year. Due to the fact that we are not a commercial-stage company, we did not have any revenue during the periods presented. Consequently, we did not use net income (loss) as a performance measure in our executive compensation program.
   
Named Executive Officers, Footnote
(1)
The dollar amounts reported in column (b) are the amounts of total compensation reported for Lynn Seely, M.D., our President and Chief Executive Officer, for all three years reported in the “Total” column of the Summary Compensation Table. Refer to “Executive Compensation—Summary Compensation Table.”
(3)
The dollar amounts reported in column (d) represent the average of the amounts reported for the NEOs as a group (excluding our PEO) in the “Total” column of the Summary Compensation Table in each applicable year. The NEOs (excluding our PEO) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2025, Stephen Hill and Gary Lee, Ph.D.; (i) for 2024, Stephen Hill and Matthew Lang (our former Chief Business Officer); and (ii) for 2023, Charles Newton (our former Chief Financial Officer), Stephen Hill, Matthew Lang, Gary Lee, Ph.D. and Tina Albertson, M.D., Ph.D.
   
PEO Total Compensation Amount $ 4,222,265 $ 1,495,376 $ 2,647,476
PEO Actually Paid Compensation Amount $ 9,637,099 (3,237,463) (7,936,183)
Adjustment To PEO Compensation, Footnote
(2)
The dollar amounts reported in column (c) represent the amounts of “compensation actually paid” to Dr. Seely, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Dr. Seely during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to Dr. Seely’s total compensation for each year to determine the compensation actually paid:
Year
Reported
Summary Compensation
Table Total for PEO
($)
Reported
Value of Equity
Awards for
PEO (a)
($)
Equity
Award Adjustments for
PEO (b)
($)
Compensation Actually
Paid to PEO
($)
2025
4,222,265
3,094,357
8,509,191
9,637,099
2024
1,495,376
474,000
(4,258,839)
(3,237,463)
2023
2,647,476
1,685,250
(8,898,409)
(7,936,183)
(a)
The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” and “Option Awards” columns in the Summary Compensation Table for the applicable year.
(b)
The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the applicable year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts deducted or added in calculating the equity award adjustments are as follows:
Year
Year End
Fair Value of
Equity
Awards for
PEO
($)
Change in Fair
Value of
Outstanding
and Unvested
Equity Awards
for PEO
($)
Fair Value as
of Vesting
Date of Equity
Awards Granted and
Vested in the
Year for PEO
($)
Change in Fair
Value of Equity
Awards Granted in
Prior Years that
Vested in the Year
for PEO
($)
Fair Value at the
End of the Prior
Year of Equity
Awards that Failed
to Meet Vesting
Conditions in the
Year for PEO
($)
Total Equity
Award
Adjustments
for PEO
($)
2025
5,950,339
2,447,420
179,712
(42,400)
(25,880)
8,509,191
2024
585,540
(4,464,450)
(379,929)
(4,258,839)
2023
(7,001,445)
(1,896,964)
(8,898,409)
   
Non-PEO NEO Average Total Compensation Amount $ 2,009,530 1,606,237 3,210,333
Non-PEO NEO Average Compensation Actually Paid Amount $ 3,596,263 72,810 1,129,554
Adjustment to Non-PEO NEO Compensation Footnote
(4)
The dollar amounts reported in column (e) represent the average amount of “compensation actually paid” to the NEOs as a group (excluding our PEO), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding our PEO) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to average total compensation for the NEOs as a group (excluding our PEO) for each year to determine the compensation actually paid, using the same methodology described above in Note (2)(b):
Year
Average
Reported Summary
Compensation Table
Total for Non-PEO NEOs
($)
Average
Reported
Value of Equity
Awards
($)
Average Equity
Award Adjustments(a)
($)
Average Compensation
Actually Paid to Non-
PEO NEOs
($)
2025
2,009,530
1,200,846
2,787,579
3,596,263
2024
1,606,237
666,450
(866,977)
72,810
2023
3,210,333
2,410,690
329,911
1,129,554
(a)
The amounts deducted or added in calculating the total average equity award adjustments are as follows:
Year
Average
Year End Fair
Value of Equity
Awards
($)
Average
Change in
Fair Value of
Outstanding
and Unvested
Equity
Awards
($)
Average Fair
Value as of
Vesting Date
of Equity
Awards
Granted and
Vested in the
Year
($)
Average
Change in
Fair Value of
Equity
Awards
Granted in
Prior Years
that Vested
in the Year
($)
Average Fair
Value at the
End of the
Prior Year of
Equity Awards
that Failed to
Meet Vesting
Conditions in
the Year
($)
Total Average
Equity Award
Adjustments
($)
2025
2,255,953
478,251
59,925
(1,374)
(5,176)
2,787,579
2024
281,657
(1,076,339)
87,042
(159,337)
(866,977)
2023
1,043,424
(536,147)
172,101
(106,207)
(243,260)
329,911
   
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid and Cumulative Company TSR
The chart below shows the relationship between the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs, on the one hand, to the Company’s cumulative TSR over the years presented in the table, on the other.
   
Compensation Actually Paid vs. Net Income
Compensation Actually Paid and Net Loss
Because we are a pre-commercial stage company, we had no revenue during the periods presented. Consequently, we do not use net income (loss) as a performance measure in our executive compensation program. Moreover, as a pre-commercial stage company with only limited, nonrecurring revenue associated with license and collaboration agreements, we do not believe there is any meaningful relationship between our net income (loss) and compensation actually paid to our NEOs during the periods presented.
   
Total Shareholder Return Amount $ 44.35 18.44 55.91
Net Income (Loss) $ (274,448,000) $ (342,994,000) $ (234,632,000)
PEO Name Lynn Seely, M.D. Lynn Seely, M.D. Lynn Seely, M.D.
Equity Awards Adjustments, Footnote
(b)
The equity award adjustments for each applicable year include the addition (or subtraction, as applicable) of the following: (i) the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the applicable year, the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts deducted or added in calculating the equity award adjustments are as follows:
Year
Year End
Fair Value of
Equity
Awards for
PEO
($)
Change in Fair
Value of
Outstanding
and Unvested
Equity Awards
for PEO
($)
Fair Value as
of Vesting
Date of Equity
Awards Granted and
Vested in the
Year for PEO
($)
Change in Fair
Value of Equity
Awards Granted in
Prior Years that
Vested in the Year
for PEO
($)
Fair Value at the
End of the Prior
Year of Equity
Awards that Failed
to Meet Vesting
Conditions in the
Year for PEO
($)
Total Equity
Award
Adjustments
for PEO
($)
2025
5,950,339
2,447,420
179,712
(42,400)
(25,880)
8,509,191
2024
585,540
(4,464,450)
(379,929)
(4,258,839)
2023
(7,001,445)
(1,896,964)
(8,898,409)
(a)
The amounts deducted or added in calculating the total average equity award adjustments are as follows:
Year
Average
Year End Fair
Value of Equity
Awards
($)
Average
Change in
Fair Value of
Outstanding
and Unvested
Equity
Awards
($)
Average Fair
Value as of
Vesting Date
of Equity
Awards
Granted and
Vested in the
Year
($)
Average
Change in
Fair Value of
Equity
Awards
Granted in
Prior Years
that Vested
in the Year
($)
Average Fair
Value at the
End of the
Prior Year of
Equity Awards
that Failed to
Meet Vesting
Conditions in
the Year
($)
Total Average
Equity Award
Adjustments
($)
2025
2,255,953
478,251
59,925
(1,374)
(5,176)
2,787,579
2024
281,657
(1,076,339)
87,042
(159,337)
(866,977)
2023
1,043,424
(536,147)
172,101
(106,207)
(243,260)
329,911
   
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount $ (3,094,357) $ (474,000) $ (1,685,250)
PEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 8,509,191 (4,258,839) (8,898,409)
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 5,950,339 585,540 0
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 2,447,420 (4,464,450) (7,001,445)
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 179,712 0 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 (42,400) (379,929) (1,896,964)
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 (25,880) 0 0
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (1,200,846) (666,450) (2,410,690)
Non-PEO NEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 2,787,579 (866,977) 329,911
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 2,255,953 281,657 1,043,424
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 478,251 (1,076,339) (536,147)
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 59,925 87,042 172,101
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 (1,374) (159,337) (106,207)
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 $ (5,176) $ 0 $ (243,260)