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 |