Generation Bio Co. - GBIO

All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)? Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).

Files summary

Total files loaded: 34
Latest filed: Feb 17, 2026
Form Count
4 22
SCHEDULE 13G/A 5
8-K 4
SCHEDULE 13G 3

Latest files

Filed Form Report period Accession SEC
Feb 17, 2026 SCHEDULE 13G/A 0000080255-26-000277 View
Feb 12, 2026 SCHEDULE 13G/A 0001037389-26-000010 View
Feb 11, 2026 SCHEDULE 13G/A 0001957912-26-000011 View
Feb 09, 2026 8-K Feb 06, 2026 0001104659-26-012121 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012182 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012184 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012188 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012189 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012190 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012191 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012192 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012193 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012194 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012195 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012196 View
Feb 09, 2026 4 Feb 09, 2026 0001104659-26-012197 View
Feb 09, 2026 4 Feb 09, 2026 0001231919-26-000124 View
Feb 06, 2026 SCHEDULE 13G 0001957912-26-000009 View
Feb 04, 2026 4 Feb 02, 2026 0001828153-26-000004 View
Feb 04, 2026 4 Feb 02, 2026 0001732701-26-000004 View
Feb 04, 2026 4 Feb 02, 2026 0002051408-26-000005 View
Jan 16, 2026 4 Jan 15, 2026 0001828153-26-000002 View
Jan 16, 2026 4 Jan 15, 2026 0001732701-26-000002 View
Jan 16, 2026 4 Jan 15, 2026 0002051408-26-000002 View
Dec 15, 2025 8-K Dec 15, 2025 0001104659-25-121219 View
Nov 21, 2025 4 Oct 31, 2025 0001732701-25-000007 View
Nov 14, 2025 SCHEDULE 13G/A 0000080255-25-000831 View
Nov 14, 2025 SCHEDULE 13G 0002006045-25-000003 View
Nov 14, 2025 SCHEDULE 13G/A 0002006045-25-000004 View
Nov 13, 2025 SCHEDULE 13G 0001037389-25-000072 View
Nov 05, 2025 8-K Nov 05, 2025 0001104659-25-106998 View
Oct 31, 2025 4 Oct 31, 2025 0001907682-25-000008 View
Oct 31, 2025 4 Oct 31, 2025 0001946316-25-000008 View
Oct 22, 2025 8-K Oct 21, 2025 0001104659-25-101535 View