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 |
| 2025-01-10 Purchase | 2025-01-14 4:05 pm | Generation Bio Co. | GBIO | Quinn Anthony G. Director | 210,791 | $0.96403 | $203,209 | 299,286 (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 |
| 2025-10-15 Exercise | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 114 | $0 | 14,711 (Direct) | View |
| 2025-10-15 Tax Withholding | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 34 | $6.71 | 14,711 (Direct) | View |
| 2025-10-15 Exercise | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 527 | $0 | 189,618 (Direct) | View |
| 2025-10-15 Tax Withholding | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 155 | $6.71 | 189,618 (Direct) | View |
| 2025-10-15 Exercise | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 334 | $0 | 4,353 (Direct) | View |
| 2025-10-15 Tax Withholding | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 99 | $6.71 | 4,353 (Direct) | View |
| 2025-10-15 Exercise | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 159 | $0 | 4,453 (Direct) | View |
| 2025-10-15 Tax Withholding | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 47 | $6.71 | 4,453 (Direct) | View |
| 2025-10-15 Exercise | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 58 | $0 | 2,161 (Direct) | View |
| 2025-10-15 Tax Withholding | 2025-10-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 18 | $6.71 | 2,161 (Direct) | View |
| 2025-07-15 Tax Withholding | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 983 | $0.426 | 44,528 (Direct) | View |
| 2025-07-15 Exercise | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 3,347 | $0 | 44,528 (Direct) | View |
| 2025-07-15 Tax Withholding | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 173 | $0.426 | 21,793 (Direct) | View |
| 2025-07-15 Exercise | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 587 | $0 | 21,793 (Direct) | View |
| 2025-07-15 Tax Withholding | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 468 | $0.426 | 45,013 (Direct) | View |
| 2025-07-15 Exercise | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 1,592 | $0 | 45,013 (Direct) | View |
| 2025-07-15 Tax Withholding | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 337 | $0.426 | 147,464 (Direct) | View |
| 2025-07-15 Exercise | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 1,147 | $0 | 147,464 (Direct) | View |
| 2025-07-15 Tax Withholding | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 1,548 | $0.426 | 1,897,748 (Direct) | View |
| 2025-07-15 Exercise | 2025-07-17 4:10 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 5,273 | $0 | 1,897,748 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:19 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Cooper Ronald Harold Wilfred Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Christensen Gustav Director | 30,000 | $0 | 60,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Quinn Anthony G. Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | JONAS JEFFREY M Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Nicholson Donald William Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Stehman-Breen Catherine Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Rowland Charles A Jr Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Rhodes Jason P Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-06 4:05 pm | N/A 2035-06-03 | Generation Bio Co. | GBIO | Appelhans Dannielle Director | 30,000 | $0 | 30,000 (Direct) | View |
| 2025-04-15 Tax Withholding | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 337 | $0.3678 | 136,542 (Direct) | View |
| 2025-04-15 Exercise | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 1,147 | $0 | 136,542 (Direct) | View |
| 2025-04-15 Tax Withholding | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 1,548 | $0.3678 | 1,888,037 (Direct) | View |
| 2025-04-15 Exercise | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 5,274 | $0 | 1,888,037 (Direct) | View |
| 2025-04-15 Tax Withholding | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 468 | $0.3678 | 34,222 (Direct) | View |
| 2025-04-15 Exercise | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 1,592 | $0 | 34,222 (Direct) | View |
| 2025-04-15 Tax Withholding | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 983 | $0.3678 | 45,511 (Direct) | View |
| 2025-04-15 Exercise | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 3,347 | $0 | 45,511 (Direct) | View |
| 2025-04-15 Tax Withholding | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 173 | $0.3678 | 21,966 (Direct) | View |
| 2025-04-15 Exercise | 2025-04-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 587 | $0 | 21,966 (Direct) | View |
| 2025-01-15 Tax Withholding | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 204 | $0.888 | 22,139 (Direct) | View |
| 2025-01-15 Exercise | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 587 | $0 | 22,139 (Direct) | View |
| 2025-01-15 Tax Withholding | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 1,160 | $0.888 | 46,494 (Direct) | View |
| 2025-01-15 Exercise | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 3,347 | $0 | 46,494 (Direct) | View |
| 2025-01-15 Tax Withholding | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 398 | $0.888 | 136,879 (Direct) | View |
| 2025-01-15 Exercise | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 1,147 | $0 | 136,879 (Direct) | View |
| 2025-01-15 Tax Withholding | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 552 | $0.888 | 34,690 (Direct) | View |
| 2025-01-15 Exercise | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 1,592 | $0 | 34,690 (Direct) | View |
| 2025-01-15 Tax Withholding | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 1,828 | $0.888 | 1,889,585 (Direct) | View |
| 2025-01-15 Exercise | 2025-01-17 4:05 pm | N/A N/A | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 5,274 | $0 | 1,889,585 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-14 4:16 pm | N/A 2035-01-09 | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 355,260 | $0 | 355,260 (Direct) | View |
Ownership | 2025-01-14 4:12 pm | N/A N/A | Generation Bio Co. | GBIO | Conway Kevin John Chief Financial Officer | 0 | $0 | 227,604 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-14 4:05 pm | N/A 2035-01-09 | Generation Bio Co. | GBIO | Samayoa Phillip CHIEF SCIENTIFIC OFFICER | 251,030 | $0 | 377,990 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-14 4:05 pm | N/A 2035-01-09 | Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER | 251,030 | $0 | 271,948 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-14 4:05 pm | N/A 2035-01-09 | Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO | 901,690 | $0 | 2,745,644 (Direct) | View |
| 2025-01-10 Option Award | 2025-01-14 4:05 pm | N/A 2035-01-09 | Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER | 251,030 | $0 | 251,030 (Direct) | View |