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 |
2024-01-02 Sale |
2024-01-03 4:35 pm |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
2,445 | $1.62 | $3,961 | 166,478 (Direct) |
View |
2024-01-02 Sale |
2024-01-03 4:35 pm |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
2,445 | $1.62 | $3,961 | 267,906 (Direct) |
View |
2023-12-08 Purchase |
2023-12-11 4:30 pm |
Generation Bio Co. | GBIO | Appelhans Dannielle Director |
8,000 | $1.7924 | $14,339 | 20,000 (Indirect Direct) |
View |
2023-12-04 Purchase |
2023-12-06 4:30 pm |
Generation Bio Co. | GBIO | Appelhans Dannielle Director |
12,000 | $1.5 | $18,000 | 12,000 (Direct) |
View |
2023-12-01 Purchase |
2023-12-05 4:30 pm |
Generation Bio Co. | GBIO | Quinn Anthony G. Director |
88,495 | $1.41 | $124,778 | 161,332 (Indirect Direct) |
View |
2023-12-01 Purchase |
2023-12-05 4:30 pm |
Generation Bio Co. | GBIO | Rowland Charles A Jr Director |
342,960 | $1.3931 | $477,778 | 534,757 (Direct) |
View |
2023-12-01 Purchase |
2023-12-05 4:30 pm |
Generation Bio Co. | GBIO | Nicholson Donald William Director |
100,000 | $1.44 | $144,000 | 213,576 (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 |
2024-06-06 Option Award |
2024-06-10 4:05 pm |
N/A 2034-06-05 |
Generation Bio Co. | GBIO | Appelhans Dannielle Director |
60,000 | $0 | 60,000 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
1,674 | $0 | 263,362 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
492 | $3.7 | 263,362 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
1,147 | $0 | 126,369 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
337 | $3.7 | 126,369 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
1,592 | $0 | 31,315 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
468 | $3.7 | 31,315 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
3,347 | $0 | 76,048 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
492 | $3.7 | 76,048 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
5,274 | $0 | 1,882,927 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
1,548 | $3.7 | 1,882,927 (Direct) |
View |
2024-04-15 Exercise |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER |
13,388 | $0 | 49,620 (Direct) |
View |
2024-04-15 Tax Withholding |
2024-04-17 5:10 pm |
N/A N/A |
Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER |
3,930 | $3.7 | 49,620 (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 |
2024-01-29 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 | Kerr Douglas CHIEF MEDICAL OFFICER |
5,021 | $0 | 385,628 (Direct) |
View |
2024-01-29 Tax Withholding |
2024-01-31 4:30 pm |
N/A N/A |
Generation Bio Co. | GBIO | Kerr Douglas CHIEF MEDICAL OFFICER |
1,476 | $1.9 | 385,628 (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 |
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 | Kerr Douglas CHIEF MEDICAL OFFICER |
4,897 | $1.91 | 409,601 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Kerr Douglas CHIEF MEDICAL OFFICER |
14,131 | $0 | 409,601 (Direct) |
View |
2024-01-15 Tax Withholding |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
4,897 | $1.91 | 263,854 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
14,131 | $0 | 263,854 (Direct) |
View |
2024-01-15 Tax Withholding |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
5,478 | $1.91 | 77,032 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
15,805 | $0 | 77,032 (Direct) |
View |
2024-01-15 Tax Withholding |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
15,431 | $1.91 | 1,884,475 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
44,531 | $0 | 1,884,475 (Direct) |
View |
2024-01-15 Tax Withholding |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
3,020 | $1.91 | 126,706 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
8,712 | $0 | 126,706 (Direct) |
View |
2024-01-15 Tax Withholding |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
3,637 | $1.91 | 31,783 (Direct) |
View |
2024-01-15 Exercise |
2024-01-17 5:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
10,492 | $0 | 31,783 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
160,650 | $0 | 166,478 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
160,650 | $0 | 160,650 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
160,650 | $0 | 267,906 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
160,650 | $0 | 160,650 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
506,250 | $0 | 2,298,344 (Direct) |
View |
2024-01-02 Option Award |
2024-01-03 4:35 pm |
N/A 2034-01-01 |
Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER |
118,837 | $0 | 118,837 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
76,310 | $0 | 76,310 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
76,310 | $0 | 76,310 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
76,310 | $0 | 76,310 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
76,310 | $0 | 76,310 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
240,470 | $0 | 240,470 (Direct) |
View |
2023-12-01 Option Award |
2023-12-05 4:30 pm |
N/A 2033-11-30 |
Generation Bio Co. | GBIO | Howze Yalonda CHIEF LEGAL OFFICER |
76,310 | $0 | 76,310 (Direct) |
View |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
1,211 | $3.24 | 111,381 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Samayoa Phillip CHIEF STRATEGY OFFICER |
4,125 | $0 | 111,381 (Direct) |
View |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
2,183 | $3.24 | 241,976 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Stanton Matthew CHIEF SCIENTIFIC OFFICER |
7,437 | $0 | 241,976 (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 |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
2,675 | $3.24 | 55,735 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Norkunas Matthew CHIEF FINANCIAL OFFICER |
9,111 | $0 | 55,735 (Direct) |
View |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
10,395 | $3.24 | 1,813,086 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | MCDONOUGH GEOFF PRESIDENT AND CEO |
23,437 | $0 | 1,813,086 (Direct) |
View |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Kerr Douglas CHIEF MEDICAL OFFICER |
2,183 | $3.24 | 377,841 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Kerr Douglas CHIEF MEDICAL OFFICER |
7,437 | $0 | 377,841 (Direct) |
View |
2023-10-15 Tax Withholding |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
1,211 | $3.24 | 9,953 (Direct) |
View |
2023-10-15 Exercise |
2023-10-17 6:00 pm |
N/A N/A |
Generation Bio Co. | GBIO | Paone Antoinette CHIEF OPERATING OFFICER |
4,125 | $0 | 9,953 (Direct) |
View |