Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-02-12 09:28 am Sale | 2024-12-31 | 13G | Generation Bio Co. GBIO | FMR LLC | 4,626,045 6.900% | -726,354 (-13.57%) | Filing History |
| 2024-12-09 6:18 pm Sale | 2024-12-05 | 13G | Generation Bio Co. GBIO | BB BIOTECH AG | 3,310,869 5.000% | -297,411 (-8.24%) | Filing History |
| 2024-11-14 1:22 pm Purchase | 2024-09-30 | 13G | Generation Bio Co. GBIO | PRICE T ROWE ASSOCIATES INC | 9,351,590 14.000% | 2,425,416 (+35.02%) | Filing History |
| 2024-11-08 2:17 pm Unchanged | 2024-09-30 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 3,415,998 5.100% | 0 (Unchanged) | Filing History |
| 2024-10-23 5:04 pm Purchase | 2024-09-30 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 3,415,998 5.100% | 247,583 (+7.81%) | Filing History |
| 2024-02-14 10:03 am Sale | 2023-12-31 | 13G | Generation Bio Co. GBIO | PRICE T ROWE ASSOCIATES INC | 6,926,174 10.500% | -334,872 (-4.61%) | Filing History |
| 2024-02-13 06:17 am Unchanged | 2023-12-31 | 13G | Generation Bio Co. GBIO | BB BIOTECH AG | 3,608,280 5.500% | 0 (Unchanged) | Filing History |
| 2024-02-09 4:05 pm Unchanged | 2023-12-31 | 13G | Generation Bio Co. GBIO | Atlas Venture Fund X L.P. | 7,111,939 10.800% | 0 (Unchanged) | Filing History |
| 2024-02-09 09:03 am Sale | 2024-02-08 | 13G | Generation Bio Co. GBIO | FMR LLC | 5,352,399 8.100% | -1,210,960 (-18.45%) | Filing History |
| 2024-01-08 4:35 pm Sale | 2023-12-31 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 3,168,415 4.800% | -539,652 (-14.55%) | Filing History |
| 2023-12-11 09:09 am Sale | 2023-12-08 | 13G | Generation Bio Co. GBIO | FMR LLC | 6,563,359 9.932% | -2,349,972 (-26.36%) | Filing History |
| 2023-03-24 4:27 pm Purchase | 2023-03-24 | 13G | Generation Bio Co. GBIO | ModernaTX Inc. | 5,859,375 8.900% | 5,859,375 (New Position) | Filing History |
| 2023-02-14 4:18 pm Sale | 2022-12-31 | 13G | Generation Bio Co. GBIO | BB BIOTECH AG | 3,608,280 6.100% | -244,900 (-6.36%) | Filing History |
| 2023-02-14 4:06 pm Sale | 2022-12-31 | 13G | Generation Bio Co. GBIO | Partner Fund Management L.P. | 2,903,192 4.900% | -110,520 (-3.67%) | Filing History |
| 2023-02-14 12:40 pm Purchase | 2022-12-31 | 13G | Generation Bio Co. GBIO | T. Rowe Price Investment Management Inc. | 3,577,755 6.000% | 3,577,755 (New Position) | Filing History |
| 2023-02-14 12:38 pm Sale | 2022-12-31 | 13G | Generation Bio Co. GBIO | PRICE T ROWE ASSOCIATES INC | 7,261,046 12.200% | -1,386,075 (-16.03%) | Filing History |
| 2023-02-09 11:19 am Sale | 2022-12-30 | 13G | Generation Bio Co. GBIO | VANGUARD GROUP INC | 2,231,499 3.760% | -1,362,962 (-37.92%) | Filing History |
| 2023-02-09 10:59 am Purchase | 2023-02-09 | 13G | Generation Bio Co. GBIO | FMR LLC | 8,913,331 14.999% | 376,869 (+4.41%) | Filing History |
| 2023-02-01 5:12 pm Purchase | 2022-12-31 | 13G | Generation Bio Co. GBIO | Farallon Capital Partners, L.P. | 1,249,382 2.100% | 1,249,382 (New Position) | Filing History |
| 2023-02-01 4:54 pm Purchase | 2022-12-31 | 13G | Generation Bio Co. GBIO | BlackRock Inc. BLK | 3,708,067 6.200% | 540,411 (+17.06%) | Filing History |