Common Stock, Shares, Issued of Generation Bio Co. from 31 Dec 2019 to 30 Sep 2025

Taxonomy & unit
us-gaap: shares
Description
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.
Summary
Generation Bio Co. quarterly Common Stock, Shares, Issued in shares history and change rate from 31 Dec 2019 to 30 Sep 2025.
  • Generation Bio Co. Common Stock, Shares, Issued for the quarter ending 30 Sep 2025 was 6,735,676, a 90% decline year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Issued, Quarterly (shares)
Common Stock, Shares, Issued, YoY Quarterly Change (%)

Generation Bio Co. Quarterly Common Stock, Shares, Issued (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q3 2025 6,735,676 -60,017,832 -90% 30 Sep 2025 10-Q 05 Nov 2025 2025 Q3
Q2 2025 6,733,413 -59,969,321 -90% 30 Jun 2025 10-Q 12 Aug 2025 2025 Q2
Q1 2025 67,008,511 +529,411 +0.8% 31 Mar 2025 10-Q 07 May 2025 2025 Q1
Q4 2024 6,697,197 -59,508,353 -90% 31 Dec 2024 10-Q 05 Nov 2025 2025 Q3
Q3 2024 66,753,508 +825,552 +1.3% 30 Sep 2024 10-Q 06 Nov 2024 2024 Q3
Q2 2024 66,702,734 +918,484 +1.4% 30 Jun 2024 10-Q 07 Aug 2024 2024 Q2
Q1 2024 66,479,100 +943,437 +1.4% 31 Mar 2024 10-Q 13 May 2024 2024 Q1
Q4 2023 66,205,550 +6,700,113 +11% 31 Dec 2023 10-K 13 Mar 2025 2024 FY
Q3 2023 65,927,956 +6,652,787 +11% 30 Sep 2023 10-Q 09 Nov 2023 2023 Q3
Q2 2023 65,784,250 +8,187,109 +14% 30 Jun 2023 10-Q 02 Aug 2023 2023 Q2
Q1 2023 65,535,663 +8,531,535 +15% 31 Mar 2023 10-Q 10 May 2023 2023 Q1
Q4 2022 59,505,437 +2,524,736 +4.4% 31 Dec 2022 10-K 06 Mar 2024 2023 FY
Q3 2022 59,275,169 +2,397,137 +4.2% 30 Sep 2022 10-Q 03 Nov 2022 2022 Q3
Q2 2022 57,597,141 +864,831 +1.5% 30 Jun 2022 10-Q 04 Aug 2022 2022 Q2
Q1 2022 57,004,128 +444,911 +0.79% 31 Mar 2022 10-Q 05 May 2022 2022 Q1
Q4 2021 56,980,701 +10,010,689 +21% 31 Dec 2021 10-K 23 Feb 2023 2022 FY
Q3 2021 56,878,032 +10,361,557 +22% 30 Sep 2021 10-Q 10 Nov 2021 2021 Q3
Q2 2021 56,732,310 +10,495,214 +23% 30 Jun 2021 10-Q 11 Aug 2021 2021 Q2
Q1 2021 56,559,217 31 Mar 2021 10-Q 12 May 2021 2021 Q1
Q4 2020 46,970,012 +39,993,935 +573% 31 Dec 2020 10-K 24 Feb 2022 2021 FY
Q3 2020 46,516,475 30 Sep 2020 10-Q 10 Nov 2020 2020 Q3
Q2 2020 46,237,096 30 Jun 2020 10-Q 11 Aug 2020 2020 Q2
Q4 2019 6,976,077 31 Dec 2019 10-K 18 Mar 2021 2020 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.