Velarion · Company Intelligence
Compensation Brief
Fiscal year 2024 · Filings through 2026-05-01

Generation Bio Co. (GBIO)

CEO Geoff McDonough was paid $1,808,274 in fiscal year 2024, ↓ down 21.9% from fiscal year 2023, the 1st percentile of its disclosed peer group (SEC filing 0001558370-25-005263 ↗): executive and director compensation, incentive-plan design, equity activity, and governance — every figure in this brief is traceable to its exact location in the company’s SEC filing — the document, the section, the page, and the table, linked directly.

$1,808,274 ↓
Geoff McDonough total, FY2024
1st
CEO pay percentile vs peers
8:1
CEO-to-median pay ratio
99.06%
Say-on-pay support, latest vote
01

Summary Compensation Table — fiscal year 2024

Named executive officerSalaryBonusStock awardsOption awardsNon-equity incentivePension / NQDCAll otherTotal
Geoff McDonough$655,301$0$0$790,358$360,416$0$2,199$1,808,274
President and Chief Executive Officer
Matthew Stanton519,16700250,807207,667015,397993,038
Chief Scientific Officer
Antionette Paone475,14100250,807190,056015,958931,962
Chief Operating Officer
Phillip Samayoa475,00000250,807190,000015,956931,763
Chief Strategy Officer
Matthew Norkunas472,44200250,807188,9770—914,246
Chief Financial Officer

A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed in the filing, without adjustment.

Three-year trend — total compensation per named executive

Named executive officerFY2024 totalFY2023 totalFY2022 totalΔ FY2023→2024
Geoff McDonough$1,808,274$2,315,263$3,966,762↓ −506,989
Matthew Stanton993,0381,151,3381,615,614↓ −158,300
Antionette Paone931,9621,070,0981,582,356↓ −138,136
Phillip Samayoa931,763914,8741,482,616↑ +16,889
Matthew Norkunas914,2461,144,3311,571,892↓ −230,085

Prior-year totals as disclosed in the corresponding proxy; deltas are computed values with the derivation shown in the register.

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Companies that benchmark against GBIO
No companies currently name GBIO as a compensation peer in their most recent disclosure.

This is the complete answer, not a partial one — the list is never padded.

02

Equity transactions since the proxy statement was filed

No insider equity transactions reported since the proxy statement.

04

Outstanding equity awards at fiscal year-end 2024

ExecutiveAwardShares unvestedExercise priceMarket value unvested
Phillip SamayoaOption18,3456.49—
Geoff McDonoughOption506,2501.86—
Geoff McDonoughOption117,1856.49—
Geoff McDonoughRSU47,459—50,307
Matthew NorkunasOption37,1856.49—
Antionette PaoneOption160,6501.86—
Antionette PaoneRSU14,324—15,183
Geoff McDonoughOption94,9214.71—
Antionette PaoneOption1,96830.25—
Phillip SamayoaOption1,37530.25—
Geoff McDonoughOption120,2341.39—
Matthew NorkunasRSU16,732—17,736
Phillip SamayoaRSU10,317—10,936
Matthew StantonRSU15,059—15,963
Geoff McDonoughOption15,68730.25—
Matthew NorkunasOption2,05130.25—
Matthew NorkunasOption38130.73—
Matthew NorkunasOption30,1214.71—
Phillip SamayoaOption48,1255.53—
Matthew NorkunasOption38,1541.39—
Matthew NorkunasOption160,6501.86—
Antionette PaoneOption20,6256.49—
Antionette PaoneOption34,3755.23—
Antionette PaoneOption28,6494.71—
Antionette PaoneOption38,1541.39—
Phillip SamayoaOption3,75035.66—
Phillip SamayoaOption20,6374.71—
Phillip SamayoaOption38,1541.39—
Phillip SamayoaOption160,6501.86—
Matthew StantonOption1,87530.73—
Matthew StantonOption4,59330.25—
Matthew StantonOption38,1541.39—
Matthew StantonOption37,1856.49—
Matthew StantonOption30,1214.71—
Matthew StantonOption160,6501.86—
05

Incentive-plan design — the Compensation Discussion & Analysis

The goals of our compensation programs are to pay for performance and ensure that the interests of our employees, including our NEOs, are aligned with the interests of our stockholders and our business goals, and that the total compensation paid to each of our NEOs is fair, reasonable, and competitive. We aim to target the 50th percentile of our peer group for each compensation element for our NEOs.

CEO STI target (% of salary)—
CEO LTI target (% of salary)—
Independent consultantCompensia
Clawback policytrue
Anti-hedgingtrue
Anti-pledgingtrue
06

Say-on-pay — recent advisory votes

Meeting yearMeeting dateForAgainstAbstainSupportOutcome
20252025-06-0438,082,392359,91222,11299.06%Passed
20242024-06-0647,772,176373,24615,12599.22%Passed
20232023-06-0857,779,16294,30215,03399.84%Passed
20212021-06-09—————

Rows are labeled by annual-meeting year, with the meeting date beside each; the vote held in a given year acts on the prior fiscal year's compensation.

Say-on-pay — history, company's computation

Meeting yearMeeting dateApproval — company's computation
20252025-06-0499.06%a
20242024-06-0699.22%b
20232023-06-0899.84%c

a. Voting standard not stated in the filing.

b. Voting standard not stated in the filing.

c. Voting standard not stated in the filing.

Approval percentages are the company's own reported computations under its own stated standard, not recomputed by Velarion. Where a company does not state a standard, none is assumed.

07

CEO pay ratio

Ratio (CEO : median employee)8 : 1
CEO total compensation—
Median employee compensation$218,104
08

Director compensation — fiscal year 2024

DirectorCash feesStock awardsOption awardsNon-equity incentiveAll otherTotal
Jason RhodesIndependent · Board Chair · Talent Committee (Chair)$85,000$0$166,476——$251,476
Charles RowlandIndependent · Audit Committee (Chair)55,0000166,476——221,476
Ron CooperIndependent · Nominating and Corporate Governance Committee (Chair)48,0000166,476——214,476
Anthony Quinn, M.B. Ch.B., Ph.DIndependent · Audit Committee47,5000166,476——213,976
Gustav ChristensenIndependent · Audit Committee47,5000166,476——213,976
Donald Nicholson, Ph.DIndependent · Talent Committee47,5000166,476——213,976
Catherine Stehman-Breen, M.DIndependent · Talent Committee47,5000166,476——213,976
Jeffrey Jonas, M.DIndependent · Nominating and Corporate Governance Committee44,0000166,476——210,476
Dannielle AppelhansIndependent · Nominating and Corporate Governance Committee44,0000166,476——210,476
Geoff McDonough, M.DEmployee director—————0
09

Board fee structure and ownership guideline

Annual cash retainer$40,000
Annual equity retainer—
Per board meeting fee—
Committee chair fees (audit / comp / nom-gov)7,500 / 7,500 / 4,000
Stock ownership guideline—
09b

Total cost of the board

ComponentFY2024
Cash retainers and fees$466,000
Equity awards (grant-date value)$0
All other compensation$0
Total cost of the board$466,000

Computed as the sum of the director compensation table rows above; inputs and formula shown in the register.

10

Disclosed peer group — fiscal year 2024

The compensation peer group as the company disclosed it in its own proxy — the reference set behind the percentile above.

10a

Peer reciprocity

Of the companies Generation Bio Co. names as compensation peers, which name it back in their own disclosed peer groups. A peer set the market reciprocates reads differently from one selected in a single direction.

Reciprocity shown where the peer's own current proxy has been read — each mark is cited in the register to that peer's filing. A dash means the peer's current proxy was read and names no reciprocal group including Generation Bio Co..

10b

Chief executive pay against the peer group

Most recent fiscal-year chief executive compensation at each disclosed peer, taken from that company's own proxy statement.

RankCompanyFYChief executiveSalaryStock awardsOption awardsNon-equity incentiveTotal
1Verve Therapeutics, Inc.2024Sekar Kathiresan$639,231$1,683,000$4,727,372$378,972$7,442,663
2Entrada Therapeutics, Inc.2025Dipal Doshi635,0001,387,4281,452,059349,2503,837,737
3Poseida Therapeutics, Inc.2023Mark Gergen611,6671,442,2851,413,936336,4203,818,018
4Voyager Therapeutics, Inc.2025Alfred Sandrock674,903611,900843,900361,9172,508,370
5Cabaletta Bio, Inc.2025Steven Nichtberger659,55001,266,978446,9822,401,555
6Editas Medicine, Inc.2025Gilmore O'Neill686,57401,282,937375,1642,353,655
7Precision BioSciences, Inc.2025Michael Amoroso650,8751,025,086002,189,467
8Caribou Biosciences, Inc.2025Rachel Haurwitz667,534192,818654,54101,840,965
9Generation Bio Co.2024Geoff McDonough655,3010790,358360,4161,808,274
—Adicet Bio, Inc.——————not in coverage universe
—Tenaya Therapeutics, Inc.——————not in coverage universe

Each peer's compensation is from its most recently filed proxy; fiscal years differ by company. Each peer's figures come from its own filings; the subject company is highlighted. Peers whose chief executive compensation is outside our coverage universe are stated as such, never left blank.

10c

Incentive design against the same peers

CompanyAnnual incentive payoutLong-term vehicle mixPSU measures include TSRCompensation consultant
Generation Bio Co.not disclosednot disclosednot disclosedCompensia
Adicet Bio, Inc.not disclosednot disclosednot disclosednot disclosed
Cabaletta Bio, Inc.114.49%Options 100not disclosedAon
Caribou Biosciences, Inc.not disclosednot disclosednot disclosedAlpine Rewards, LLC
Editas Medicine, Inc.91%Options 100not disclosedPearl Meyer & Partners, LLC
Entrada Therapeutics, Inc.not disclosednot disclosedNoPay Governance
Poseida Therapeutics, Inc.not disclosednot disclosednot disclosedAon Consulting, Inc.
Precision BioSciences, Inc.115%RSU 100not disclosedAon
Tenaya Therapeutics, Inc.not disclosednot disclosednot disclosednot disclosed
Verve Therapeutics, Inc.not disclosednot disclosednot disclosedRadford Data & Analytics from Aon plc
Voyager Therapeutics, Inc.97.5%not disclosedNoAlpine Rewards, LLC

Read from each company's Compensation Discussion and Analysis: annual incentive payout as a percentage of target, the disclosed long-term vehicle mix, whether performance-share measures include a total shareholder return component, and the retained compensation consultant. “Not disclosed” appears only where the company's filing does not state the item.

10d

Frequently asked questions

Who was the highest-paid executive at Generation Bio Co. in fiscal 2024?
As disclosed, Geoff McDonough (President and Chief Executive Officer) was the highest-paid executive at Generation Bio Co. in fiscal 2024, with total compensation of $1,808,274.
How does Generation Bio Co.'s chief executive pay compare to its disclosed peer group?
As disclosed, Geoff McDonough's total compensation ranked at the 1st percentile of Generation Bio Co.'s disclosed peer group.
What is Generation Bio Co.'s CEO-to-median employee pay ratio?
As disclosed, Generation Bio Co.'s CEO-to-median employee pay ratio was 8:1.
How did shareholders vote on Generation Bio Co.'s executive compensation?
As disclosed, 99.06% of shareholders supported Generation Bio Co.'s executive compensation in the latest say-on-pay vote.
How much does Generation Bio Co. spend in total on board compensation for fiscal 2024?
As disclosed, Generation Bio Co. reported total board compensation of $466,000 for fiscal 2024.

Answers are drawn only from the figures disclosed in this brief and cited to their location in the source filing. Where a figure required for an answer is not disclosed, that is stated rather than estimated.

11

Source register

Each figure's location is given both for the eye (section · page · table · row · column) and for a script (table/row/column index and exact character span in the filed document). Any figure can be independently confirmed against the source.

#SupportsDocumentFiledAccessionLocation in document
1Section 01, Geoff McDonoughDEF 14A2025-04-230001558370-25-005263Section “Summary Compensation Table” · page 43. As printed: 1,808,274. Filing ↗machine: r6 · c14 · span 601081–601090
2Section 01, Matthew StantonDEF 14A2025-04-230001558370-25-005263Section “Summary Compensation Table” · page 43. As printed: 993,038. Filing ↗machine: r18 · c14 · span 645227–645234
3Section 01, Antionette PaoneDEF 14A2025-04-230001558370-25-005263Section “Summary Compensation Table” · page 43. As printed: 931,962. Filing ↗machine: r12 · c14 · span 623023–623030
4Section 01, Phillip SamayoaDEF 14A2025-04-230001558370-25-005263Section “Summary Compensation Table” · page 43. As printed: 931,763. Filing ↗machine: r15 · c14 · span 633865–633872
5Section 01, Matthew NorkunasDEF 14A2025-04-230001558370-25-005263Section “Summary Compensation Table” · page 43. As printed: 914,246. Filing ↗machine: r9 · c14 · span 611981–611988
6Section 07, pay ratioDEF 14A2025-04-230001558370-25-005263Section “CEO Pay Ratio”. As printed: 8 : 1. Filing ↗
7Section 08, Jason RhodesDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 251,476. Filing ↗machine: span 364373–364541
8Section 08, Charles RowlandDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 221,476. Filing ↗machine: span 365913–366081
9Section 08, Ron CooperDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 214,476. Filing ↗machine: span 357921–358089
10Section 08, Anthony Quinn, M.B. Ch.B., Ph.DDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 213,976. Filing ↗machine: span 362703–362871
11Section 08, Gustav ChristensenDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 213,976. Filing ↗machine: span 356253–356421
12Section 08, Donald Nicholson, Ph.DDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 213,976. Filing ↗machine: span 361146–361314
13Section 08, Catherine Stehman-Breen, M.DDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 213,976. Filing ↗machine: span 367600–367768
14Section 08, Jeffrey Jonas, M.DDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 210,476. Filing ↗machine: span 359465–359633
15Section 08, Dannielle AppelhansDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 210,476. Filing ↗machine: span 354710–354878
16Section 08, Geoff McDonough, M.DDEF 14A2025-04-230001558370-25-005263Section “Director Compensation”. As printed: 0. Filing ↗
17Section 06, 2025 voteForm 8-K2025-06-050001558370-25-008432Item 5.07 · say-on-pay result. As reported: 99.06% (votes for as printed: 38,082,392). Filing ↗
18Section 06, 2024 voteForm 8-K2024-06-070001558370-24-009013Item 5.07 · say-on-pay result. As reported: 99.22% (votes for as printed: 47,772,176). Filing ↗
19Section 06, 2023 voteForm 8-K2023-06-090001558370-23-010949Item 5.07 · say-on-pay result. As reported: 99.84% (votes for as printed: 57,779,162). Filing ↗
20Section 01 trend, Δ column (computed)Computed——Δ = current-FY total − prior-FY total per named officer.machine: formula: Δ = FY(n) − FY(n−1)
21Section 09b board cost (computed)Computed——Cash 466,000 + equity 0 + all other 0 = 466,000, summed across the director compensation table rows.machine: formula: Σ = 466,000
22Verve Therapeutics, Inc., Section 10b CEO totalDEF 14A2025-04-250000950170-25-058325CEO total compensation as printed in Verve Therapeutics, Inc.'s own proxy. As printed: 7,442,663. Filing ↗machine: r2 · c20 · span 327433–327442
23Entrada Therapeutics, Inc., Section 10b CEO totalDEF 14A2026-04-240001689375-26-000021CEO total compensation as printed in Entrada Therapeutics, Inc.'s own proxy. As printed: 3,837,737. Filing ↗machine: t12 · r2 · c14 · span 336891–336900
24Poseida Therapeutics, Inc., Section 10b CEO totalDEF 14A2024-04-250000950170-24-048291CEO total compensation as printed in Poseida Therapeutics, Inc.'s own proxy. As printed: 3,818,018. Filing ↗machine: span 428155–428164
25Voyager Therapeutics, Inc., Section 10b CEO totalDEF 14A2026-04-280001104659-26-050297CEO total compensation as printed in Voyager Therapeutics, Inc.'s own proxy. As printed: 2,508,370. Filing ↗machine: t9 · r1 · c47 · span 370852–370861
26Cabaletta Bio, Inc., Section 10b CEO totalDEF 14A2026-04-280001193125-26-183557CEO total compensation as printed in Cabaletta Bio, Inc.'s own proxy. As printed: 2,401,555. Filing ↗
27Editas Medicine, Inc., Section 10b CEO totalDEF 14A2026-04-280001650664-26-000037CEO total compensation as printed in Editas Medicine, Inc.'s own proxy. As printed: 2,353,655. Filing ↗machine: t42 · r2 · c12 · span 545455–545464
28Precision BioSciences, Inc., Section 10b CEO totalDEF 14A2026-04-080001140361-26-013757CEO total compensation as printed in Precision BioSciences, Inc.'s own proxy. As printed: 2,189,467. Filing ↗machine: r2 · c19 · span 829996–830005
29Caribou Biosciences, Inc., Section 10b CEO totalDEF 14A2026-05-010001619856-26-000028CEO total compensation as printed in Caribou Biosciences, Inc.'s own proxy. As printed: 1,840,965. Filing ↗machine: r2 · c39 · span 191689–191698
30Generation Bio Co. (subject), Section 10b CEO totalDEF 14A2025-04-230001558370-25-005263CEO total compensation as printed in Generation Bio Co.'s own proxy. As printed: 1,808,274. Filing ↗machine: r6 · c14 · span 601081–601090
31Section 10a, Precision BioSciences, Inc. reciprocityDEF 14A—0001140361-26-013757Precision BioSciences, Inc.'s most recent proxy was read; its disclosed peer group does not include Generation Bio Co.. Filing ↗
32Section 10a, Editas Medicine, Inc. reciprocityDEF 14A—0001650664-26-000037Editas Medicine, Inc.'s most recent proxy was read; its disclosed peer group does not include Generation Bio Co.. Filing ↗
33Section 10a, Voyager Therapeutics, Inc. reciprocityDEF 14A—0001104659-26-050297Voyager Therapeutics, Inc.'s most recent proxy was read; its disclosed peer group does not include Generation Bio Co.. Filing ↗

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