Weighted Average Number of Shares Outstanding, Basic of Generation Bio Co. from 2019 to Q3 2025

Taxonomy & unit
us-gaap: shares
Description
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
Summary
Generation Bio Co. quarterly/annual Weighted Average Number of Shares Outstanding, Basic history and change rate from 2019 to Q3 2025.
  • Generation Bio Co. Weighted Average Number of Shares Outstanding, Basic for the quarter ending 30 Sep 2025 was 6.74M shares, a 0.92% increase year-over-year.
  • Generation Bio Co. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 66.6M shares, a 3.32% increase from 2023.
  • Generation Bio Co. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 64.5M shares, a 11% increase from 2022.
  • Generation Bio Co. annual Weighted Average Number of Shares Outstanding, Basic for 2022 was 58.1M shares, a 3.23% increase from 2021.
Weighted Average Number of Shares Outstanding, Basic, Quarterly (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Quarterly Change (%)
Weighted Average Number of Shares Outstanding, Basic, Annual (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Annual Change (%)

Generation Bio Co. Quarterly Weighted Average Number of Shares Outstanding, Basic (shares)

Period TTM Value Value YoY Chg Change % Start Date End Date Report Filed
Q3 2025 6.74M +61.6K +0.92% 01 Jul 2025 30 Sep 2025 10-Q 05 Nov 2025
Q2 2025 6.7M +50.5K +0.76% 01 Apr 2025 30 Jun 2025 10-Q 12 Aug 2025
Q1 2025 67M +569K +0.86% 01 Jan 2025 31 Mar 2025 10-Q 07 May 2025
Q4 2024 66.6M +2.14M +3.32% 01 Oct 2024 31 Dec 2024 10-K 13 Mar 2025
Q3 2024 6.67M -59.2M -89.9% 01 Jul 2024 30 Sep 2024 10-Q 05 Nov 2025
Q2 2024 6.65M -59M -89.9% 01 Apr 2024 30 Jun 2024 10-Q 12 Aug 2025
Q1 2024 66.4M +6.2M +10.3% 01 Jan 2024 31 Mar 2024 10-Q 07 May 2025
Q4 2023 64.5M +6.37M +11% 01 Oct 2023 31 Dec 2023 10-K 13 Mar 2025
Q3 2023 65.9M +7.03M +11.9% 01 Jul 2023 30 Sep 2023 10-Q 06 Nov 2024
Q2 2023 65.7M +8.51M +14.9% 01 Apr 2023 30 Jun 2023 10-Q 07 Aug 2024
Q1 2023 60.2M +3.23M +5.67% 01 Jan 2023 31 Mar 2023 10-Q 13 May 2024
Q4 2022 58.1M +1.82M +3.23% 01 Oct 2022 31 Dec 2022 10-K 13 Mar 2025
Q3 2022 58.9M +2.24M +3.96% 01 Jul 2022 30 Sep 2022 10-Q 09 Nov 2023
Q2 2022 57.1M +831K +1.48% 01 Apr 2022 30 Jun 2022 10-Q 02 Aug 2023
Q1 2022 57M +1.63M +2.94% 01 Jan 2022 31 Mar 2022 10-Q 10 May 2023
Q4 2021 56.3M 01 Oct 2021 31 Dec 2021 10-K 06 Mar 2024
Q3 2021 56.6M 01 Jul 2021 30 Sep 2021 10-Q 03 Nov 2022
Q2 2021 56.3M 01 Apr 2021 30 Jun 2021 10-Q 04 Aug 2022
Q1 2021 55.4M 01 Jan 2021 31 Mar 2021 10-Q 05 May 2022

Generation Bio Co. Annual Weighted Average Number of Shares Outstanding, Basic (shares)

Period Value YoY Chg Change % Start Date End Date Report Filed
2024 66.6M +2.14M +3.32% 01 Jan 2024 31 Dec 2024 10-K 13 Mar 2025
2023 64.5M +6.37M +11% 01 Jan 2023 31 Dec 2023 10-K 13 Mar 2025
2022 58.1M +1.82M +3.23% 01 Jan 2022 31 Dec 2022 10-K 13 Mar 2025
2021 56.3M +29M +107% 01 Jan 2021 31 Dec 2021 10-K 06 Mar 2024
2020 27.3M +22.5M +476% 01 Jan 2020 31 Dec 2020 10-K 23 Feb 2023
2019 4.73M 01 Jan 2019 31 Dec 2019 10-K 24 Feb 2022
* An asterisk sign (*) next to the value indicates that the value is likely invalid.