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 |
2024-07-08 Sale |
2024-07-10 4:05 pm |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
674,348 | $4.557 | $3,073,004 | 0 (Direct) |
View |
2023-02-09 Sale |
2023-02-10 9:49 pm |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
384,719 | $3.03 | $1,165,699 | 0 (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 |
2025-02-18 Option Award |
2025-02-20 4:05 pm |
N/A 2035-02-17 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
979,000 | $0 | 979,000 (Direct) |
View |
2024-07-08 Exercise |
2024-07-10 4:05 pm |
N/A N/A |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
674,348 | $1.72 | 0 (Direct) |
View |
2024-07-08 Exercise |
2024-07-10 4:05 pm |
N/A 2028-11-06 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
674,348 | $0 | 0 (Direct) |
View |
2024-06-06 Option Award |
2024-06-07 4:10 pm |
N/A 2028-11-06 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
452,804 | $0 | 452,804 (Direct) |
View |
2024-02-14 Option Award |
2024-02-16 4:07 pm |
N/A 2034-02-13 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, CHIEF OPERATING OFFICER |
1,200,000 | $0 | 1,200,000 (Direct) |
View |
2023-08-15 Option Award |
2023-09-21 8:32 pm |
2023-08-15 2028-11-06 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
221,544 | $0 | 221,544 (Direct) |
View |
2023-02-22 Option Award |
2023-02-24 7:18 pm |
N/A 2033-02-21 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
780,000 | $0 | 780,000 (Direct) |
View |
2023-02-09 Exercise |
2023-02-10 9:49 pm |
N/A N/A |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
150,000 | $1.51 | 0 (Direct) |
View |
2023-02-09 Exercise |
2023-02-10 9:49 pm |
N/A 2023-02-12 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
150,000 | $0 | 0 (Direct) |
View |
2022-09-12 Exercise |
2022-09-14 5:47 pm |
N/A N/A |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
234,719 | $1.7 | 300,000 (Direct) |
View |
2022-09-12 Exercise |
2022-09-14 5:47 pm |
N/A 2022-09-19 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
234,719 | $0 | 300,000 (Direct) |
View |
2022-02-16 Option Award |
2022-02-18 6:06 pm |
N/A 2032-02-15 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
750,000 | $0 | 750,000 (Direct) |
View |
2021-02-02 Option Award |
2021-02-04 7:42 pm |
N/A 2031-02-01 |
GERON CORP | GERN | GRETHLEIN ANDREW J EVP, Chief Operating Officer |
300,000 | $0 | 300,000 (Direct) |
View |