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| Keyboard |
| Geron Corp | |
|---|---|
| Ticker | GERN |
| CIK # | 0000886744 |
| CUSIP | 374163103 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | 230 Constitution Drive, Menlo Park, CA 94025 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0000886744] | 10-K | |
| [0000886744] | 10-Q | |
| [0000886744] | 3 | |
| [0000886744] | 4 | |
| [0000886744] | 5 | |
| [0000886744] | 8-K | |
| [0000886744] | SC 13D | |
| [0000886744] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Andrews Patricia S
Stock Option (Right to Buy) · derivative
|
2026-03-25 | Grant | 270,000 | $0.00 | |
|
Chinoporos Constantine
Stock Option (Right to Buy) · derivative
|
2026-03-25 | Grant | 270,000 | $0.00 | |
|
Robertson Michelle
Common Stock
|
2026-02-18 | Sell | 9,855 | $1.94 | 19,119 |
|
Robertson Michelle
Restricted Stock Units · derivative
|
2026-02-18 | Option exercise | 27,500 | $0.00 | |
|
Robertson Michelle
Common Stock
|
2026-02-18 | Option exercise | 27,500 | $0.00 | |
|
Robertson Michelle
Stock Option (Right to Buy) · derivative
|
2026-02-17 | Grant | 1,660,000 | $0.00 | |
|
Eid Joseph
Stock Option (Right to Buy) · derivative
|
2026-02-17 | Grant | 2,220,000 | $0.00 | |
|
Spiegel Robert J
Common Stock
|
2025-12-31 | Grant | 5,918 | $1.32 | 7,812 |
|
ElNawawi Ahmed
Stock Option (right to buy) · derivative
|
2025-10-20 | Grant | 3,000,000 | $0.00 | |
|
Spiegel Robert J
Common Stock
|
2025-09-30 | Grant | 5,702 | $1.37 | 7,812 |
|
Semerjian Harout
Stock Option (right to buy) · derivative
|
2025-08-07 | Grant | 4,000,000 | $0.00 | |
|
Semerjian Harout
Stock Option (right to buy) · derivative
|
2025-08-07 | Grant | 7,000,000 | $0.00 | |
|
Spiegel Robert J
Common Stock
|
2025-06-30 | Grant | 5,540 | $1.41 | 7,811 |
|
Molineaux Susan
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
Spiegel Robert J
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
O'Farrell Elizabeth G
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
McDonald John F
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
Aggarwal Gaurav
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
Bir Dawn Carter
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
|
Lawlis V Bryan
Stock Option (right to buy) · derivative
|
2025-05-21 | Grant | 180,000 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 256 | 498,007,567 |
| 2025-12-31 | 262 | 475,852,622 |
| 2025-09-30 | 264 | 504,003,479 |
| 2025-06-30 | 258 | 510,896,809 |
| 2025-03-31 | 271 | 506,285,954 |
| 2024-12-31 | 287 | 486,463,102 |
| 2024-09-30 | 257 | 505,321,411 |
| 2024-06-30 | 240 | 456,365,970 |
| 2024-03-31 | 232 | 442,400,398 |
| 2023-12-31 | 204 | 406,255,216 |
| 2023-09-30 | 204 | 372,484,814 |
| 2023-06-30 | 202 | 344,429,301 |