Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not 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>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2021-05-03 Sale | 2021-05-05 4:10 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $35.7 | $89,238 | 86,407 (Direct) | View |
| 2021-04-22 Sale | 2021-04-23 4:05 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $33.32 | $83,300 | 88,907 (Direct) | View |
| 2021-03-03 Sale | 2021-03-05 4:05 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 3,000 | $41.38 | $124,140 | 91,407 (Direct) | View |
| 2021-03-01 Sale | 2021-03-03 4:10 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $38.84 | $97,099 | 94,407 (Direct) | View |
| 2021-02-02 Sale | 2021-02-04 4:05 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $33.05 | $82,625 | 126,385 (Direct) | View |
| 2021-01-14 Sale | 2021-01-15 4:06 pm | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $33.09 | $82,725 | 99,407 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-01-29 Tax Withholding | 2024-01-31 4:30 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 1,476 | $1.9 | 49,164 (Direct) | View |
| 2024-01-29 Exercise | 2024-01-31 4:30 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 5,021 | $0 | 49,164 (Direct) | View |
| 2024-01-15 Exercise | 2024-01-17 5:00 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 14,131 | $0 | 65,700 (Direct) | View |
| 2024-01-15 Tax Withholding | 2024-01-17 5:00 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 4,897 | $1.91 | 65,700 (Direct) | View |
| 2023-10-15 Tax Withholding | 2023-10-17 6:00 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,183 | $3.24 | 43,822 (Direct) | View |
| 2023-10-15 Exercise | 2023-10-17 6:00 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 7,437 | $0 | 43,822 (Direct) | View |
| 2023-07-15 Exercise | 2023-07-18 4:35 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 7,437 | $0 | 46,005 (Direct) | View |
| 2023-07-15 Tax Withholding | 2023-07-18 4:35 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,183 | $5.08 | 46,005 (Direct) | View |
| 2023-04-15 Exercise | 2023-04-18 4:19 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 7,437 | $0 | 48,188 (Direct) | View |
| 2023-04-15 Tax Withholding | 2023-04-18 4:19 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,183 | $4.5 | 48,188 (Direct) | View |
| 2023-01-20 Option Award | 2023-01-24 4:13 pm | N/A 2033-01-20 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 80,325 | $0 | 80,325 (Direct) | View |
| 2023-01-15 Tax Withholding | 2023-01-18 5:05 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,578 | $5.1 | 50,371 (Direct) | View |
| 2023-01-15 Exercise | 2023-01-18 5:05 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 7,438 | $0 | 50,371 (Direct) | View |
| 2022-10-15 Exercise | 2022-10-18 4:45 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 7,438 | $0 | 52,949 (Direct) | View |
| 2022-10-15 Tax Withholding | 2022-10-18 4:45 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,184 | $5.61 | 52,949 (Direct) | View |
| 2022-07-15 Exercise | 2022-07-19 4:09 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 14,876 | $0 | 55,133 (Direct) | View |
| 2022-07-15 Tax Withholding | 2022-07-19 4:09 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 4,367 | $7.18 | 55,133 (Direct) | View |
| 2022-01-21 Option Award | 2022-01-25 4:05 pm | N/A 2032-01-21 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 178,500 | $0 | 178,500 (Direct) | View |
| 2021-05-03 Exercise | 2021-05-05 4:10 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $0 | 86,407 (Direct) | View |
| 2021-05-03 Exercise | 2021-05-05 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $4.59 | 86,407 (Direct) | View |
| 2021-04-22 Exercise | 2021-04-23 4:05 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $0 | 88,907 (Direct) | View |
| 2021-04-22 Exercise | 2021-04-23 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $4.59 | 88,907 (Direct) | View |
| 2021-03-03 Exercise | 2021-03-05 4:05 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 3,000 | $0 | 91,407 (Direct) | View |
| 2021-03-03 Exercise | 2021-03-05 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 3,000 | $4.59 | 91,407 (Direct) | View |
| 2021-03-01 Exercise | 2021-03-03 4:10 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $0 | 94,407 (Direct) | View |
| 2021-03-01 Exercise | 2021-03-03 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $4.59 | 94,407 (Direct) | View |
| 2021-01-22 Option Award | 2021-02-04 4:05 pm | N/A 2031-01-21 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 29,478 | $0 | 126,385 (Direct) | View |
| 2021-02-02 Exercise | 2021-02-04 4:05 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $0 | 126,385 (Direct) | View |
| 2021-02-02 Exercise | 2021-02-04 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $4.59 | 126,385 (Direct) | View |
| 2021-01-14 Exercise | 2021-01-15 4:06 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $0 | 99,407 (Direct) | View |
| 2021-01-14 Exercise | 2021-01-15 4:06 pm | N/A N/A | Generation Bio Co. | GBIO | Zimmermann Tracy CHIEF DEVELOPMENT OFFICER | 2,500 | $4.59 | 99,407 (Direct) | View |
| 2020-11-09 Option Award | 2020-11-10 4:10 pm | N/A 2030-11-08 | Generation Bio Co. | GBIO | Zimmermann Tracy Chief Development Officer | 97,500 | $0 | 97,500 (Direct) | View |
Ownership | 2020-11-10 4:05 pm | N/A 2028-12-05 | Generation Bio Co. | GBIO | Zimmermann Tracy Chief Development Officer | 0 | $0 | 113,936 (Direct) | View |