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 |
2025-02-27 Purchase |
2025-03-03 06:01 am |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
12,500 | $1.765 | $22,063 | 137,500 (Indirect Direct) |
View |
2024-06-04 Sale |
2024-06-05 4:05 pm |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
600,000 | $4 | $2,400,000 | 600,000 (Direct) |
View |
2023-02-08 Sale |
2023-02-10 9:47 pm |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
1,340,000 | $3.0367 | $4,069,133 | 0 (Direct) |
View |
2021-08-05 Sale |
2021-08-05 5:57 pm |
CHIASMA INC | CHMA | SCARLETT JOHN A Director |
61,322 | $0 | $0 | 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 | SCARLETT JOHN A Chairman, President and CEO |
2,867,000 | $0 | 2,867,000 (Direct) |
View |
2024-06-06 Option Award |
2024-06-07 4:10 pm |
N/A 2028-11-06 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
1,000,000 | $0 | 1,000,000 (Direct) |
View |
2024-06-04 Exercise |
2024-06-05 4:05 pm |
N/A 2026-02-11 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
600,000 | $0 | 600,000 (Direct) |
View |
2024-06-04 Exercise |
2024-06-05 4:05 pm |
N/A N/A |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
600,000 | $2.54 | 600,000 (Direct) |
View |
2024-02-14 Option Award |
2024-02-16 4:06 pm |
N/A 2034-02-13 |
GERON CORP | GERN | SCARLETT JOHN A CHAIRMAN, PRESIDENT AND CEO |
3,000,000 | $0 | 3,000,000 (Direct) |
View |
2023-08-15 Option Award |
2023-09-21 8:32 pm |
2023-08-15 2028-11-06 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
500,000 | $0 | 500,000 (Direct) |
View |
2023-02-22 Option Award |
2023-02-24 7:16 pm |
N/A 2033-02-21 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
1,750,000 | $0 | 1,750,000 (Direct) |
View |
2023-02-08 Exercise |
2023-02-10 9:47 pm |
N/A 2023-02-13 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
1,340,000 | $0 | 0 (Direct) |
View |
2023-02-08 Exercise |
2023-02-10 9:47 pm |
N/A N/A |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
1,340,000 | $1.5 | 0 (Direct) |
View |
2022-02-16 Option Award |
2022-02-18 6:03 pm |
N/A 2032-02-15 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
2,100,000 | $0 | 2,100,000 (Direct) |
View |
2021-06-16 Option Award |
2021-06-17 6:46 pm |
N/A 2031-06-15 |
CytomX Therapeutics Inc. | CTMX | SCARLETT JOHN A Director |
20,000 | $0 | 20,000 (Direct) |
View |
2021-02-02 Option Award |
2021-02-04 7:44 pm |
N/A 2031-02-01 |
GERON CORP | GERN | SCARLETT JOHN A Chairman, President and CEO |
600,000 | $0 | 600,000 (Direct) |
View |
2020-06-17 Option Award |
2020-06-18 3:01 pm |
N/A 2030-06-16 |
CytomX Therapeutics Inc. | CTMX | SCARLETT JOHN A Director |
20,000 | $0 | 20,000 (Direct) |
View |
2020-06-11 Option Award |
2020-06-12 8:27 pm |
N/A 2030-06-11 |
CHIASMA INC | CHMA | SCARLETT JOHN A Director |
13,000 | $0 | 13,000 (Direct) |
View |