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 |
2022-06-07 Purchase |
2022-06-07 5:30 pm |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
25,000 | $1.3305 | $33,263 | 29,233 (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 |
2025-03-04 Option Award |
2025-03-06 4:16 pm |
N/A 2035-03-03 |
CERO THERAPEUTICS HOLDINGS INC. | CERO | Byrnes Michael Director |
17,923 | $0 | 17,923 (Direct) |
View |
2025-02-24 Option Award |
2025-02-26 5:57 pm |
N/A 2034-09-30 |
CERO THERAPEUTICS HOLDINGS INC. | CERO | Byrnes Michael Director |
127,500 | $0 | 255,000 (Direct) |
View |
2024-12-02 Option Award |
2024-12-04 9:11 pm |
N/A 2034-09-30 |
CERO THERAPEUTICS HOLDINGS INC. | CERO | Byrnes Michael Director |
127,500 | $0 | 127,500 (Direct) |
View |
2024-05-15 Option Award |
2024-05-17 4:00 pm |
N/A N/A |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
1,387 | $1.683 | 3,117 (Direct) |
View |
2024-03-25 Option Award |
2024-03-27 9:24 pm |
N/A 2034-03-24 |
CERO THERAPEUTICS HOLDINGS INC. | CERO | Byrnes Michael Director |
112,500 | $0 | 112,500 (Direct) |
View |
2024-02-19 Option Award |
2024-02-21 5:02 pm |
N/A 2034-02-18 |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
40,000 | $0 | 40,000 (Direct) |
View |
2023-11-15 Option Award |
2023-11-16 5:26 pm |
N/A N/A |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
4,524 | $0.4973 | 43,271 (Direct) |
View |
2023-05-15 Option Award |
2023-05-16 08:01 am |
N/A N/A |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
4,863 | $0.459 | 38,747 (Direct) |
View |
2023-01-17 Option Award |
2023-01-19 5:02 pm |
N/A 2033-01-16 |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
500,000 | $0 | 500,000 (Direct) |
View |
2022-11-15 Option Award |
2022-11-16 6:30 pm |
N/A N/A |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
4,651 | $0.4684 | 33,884 (Direct) |
View |
2022-06-20 Option Award |
2022-06-22 4:17 pm |
N/A 2032-06-19 |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
235,541 | $0 | 235,541 (Direct) |
View |
2022-05-13 Option Award |
2022-05-17 8:46 pm |
N/A N/A |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
4,233 | $1.53 | 4,233 (Direct) |
View |
2022-01-20 Option Award |
2022-01-24 8:11 pm |
N/A 2032-01-19 |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
235,541 | $0 | 235,541 (Direct) |
View |
2021-08-25 Option Award |
2021-08-27 6:01 pm |
N/A 2030-12-09 |
eFFECTOR Therapeutics Inc. | EFTR | Byrnes Michael Chief Financial Officer |
387,787 | $0 | 387,787 (Direct) |
View |