GENERATION BIO CO. 2024-2025 Proxy Voting Records

Description as filed by funds: Election of three Class II directors to our board of directors, each to serve until the 2028 Annual Meeting of Stockholders: Jason Rhodes

GENERATION BIO CO.’s own tally for this item (“Elect Director: Jason Rhodes”): 30,123,306 for, 8,341,110 withheld, per its Form 8-K filed June 5, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 78% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 31 managers: 12,744,523 for, 2,966,849 withheld. Showing the 25 largest; every one is in the interactive database (link above).

Institutional-manager reports, all 1 managers: 341,725 for.

Description as filed by funds: Election of three Class II directors to our board of directors, each to serve until the 2028 Annual Meeting of Stockholders: Ron Cooper

GENERATION BIO CO.’s own tally for this item (“Elect Director: Ron Cooper”): 31,328,687 for, 7,135,729 withheld, per its Form 8-K filed June 5, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 81% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 31 managers: 13,293,409 for, 1,066,819 withheld, 1,351,144 abstained. Showing the 25 largest; every one is in the interactive database (link above).

Institutional-manager reports, all 1 managers: 341,725 for.

Description as filed by funds: Election of three Class II directors to our board of directors, each to serve until the 2028 Annual Meeting of Stockholders: Anthony Quinn, M.B. Ch. N., Ph.D.

GENERATION BIO CO.’s own tally for this item (“Elect Director: Anthony Quinn, M.B. Ch.B., Ph.D.”): 38,100,685 for, 363,731 withheld, per its Form 8-K filed June 5, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 99.0% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 26 asset managers below reported 14,161,269 for, 161,267 withheld.

Showing the 25 largest of 26 asset managers. All 26 are in the interactive database (link above).

Description as filed by funds: Adoption and approval of an amendment to our restated certificate of incorporation to effect a reverse stock split of our issued shares of common stock at a ratio within the range of not less than 1-for-10 and not greater than 1-for-30, without reducing the authorized number of shares of our common stock, with the exact ratio within such range and the implementation and timing of such reverse stock split to be determined at the sole discretion of our board of directors, without further approval or authorization of our stockholders.

GENERATION BIO CO.’s own tally for this item (“4. Adoption and approval of an amendment to the Company's restated certificate of incorporation to effect a reverse stock split of the Company's issued shares of common stock at a ratio within the range of not less than ”): 49,670,638 for, 837,631 against — passed, per its Form 8-K filed June 5, 2025 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Based on the votes set forth above, the stockholders of the Company approved the adoption and approval of an amendment to the Company's restated certificate of incorporation to effect a reverse stock split of the Company's issued shares of common stock at a ratio within the range of not less than 1…”
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 31 managers: 15,711,372 for. Showing the 25 largest; every one is in the interactive database (link above).

Institutional-manager reports, all 1 managers: 341,725 against.

Description as filed by funds: APPROVAL, ON AN ADVISORY (NON-BINDING) BASIS, OF THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS.

GENERATION BIO CO.’s own tally for this item (“3. Approval, on an advisory (non-binding) basis, of the compensation of the Company's named executive officers; and”): 38,082,392 for, 359,912 against — passed, per its Form 8-K filed June 5, 2025 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Based on the votes set forth above, the stockholders of the Company approved, on an advisory (non-binding) basis, of the compensation of its named executive officers.”
Support: 99.0% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 31 managers: 15,622,260 for, 89,112 against. Showing the 25 largest; every one is in the interactive database (link above).

Institutional-manager reports, all 67 managers: 31,251,552 for, 70,468 against. Showing the 25 largest; every one is in the interactive database (link above).

Description as filed by funds: Ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025.

GENERATION BIO CO.’s own tally for this item (“2. Ratification of the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025”): 50,507,873 for, 113,314 against — passed, per its Form 8-K filed June 5, 2025 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Based on the votes set forth above, the stockholders of the Company ratified the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm to serve for the year ending December 31, 2025.”
Support: 99.7% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 31 managers: 15,711,372 for. Showing the 25 largest; every one is in the interactive database (link above).

Institutional-manager reports, all 1 managers: 341,725 for.