Companies / Geron Corp
Geron Corp
Financials · FY2023
Ownership
642.5M shares outstanding · as of Jul 31, 2026
Ownership
| Insiders | 0.03% | 212,109 |
| 10%+ / strategic | 10.64% | 68,367,942 |
| Institutions | 67.79% | 435,513,944 |
| Public float | 21.54% | 138,379,414 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 5
View all →| Insider | % of shares | Shares |
|---|---|---|
Spiegel Robert J.Director | 0.03% | 194,464 |
Robertson MichelleEVP, CHIEF FINANCIAL OFFICER | <0.01% | 17,645 |
Andrews Patricia SDirector | — | — |
Chinoporos ConstantineDirector | — | — |
Eid JosephEVP, R&D; Chief Medical Office | — | — |
Institutional holders 264
View all →| Holder | Value | % of shares |
|---|---|---|
| $95.02M | 9.93% | |
| $62.87M | 7.64% | |
| $47.07M | 5.55% | |
| $45.90M | 5.58% | |
| $42.91M | 5.06% | |
| $35.94M | 4.24% | |
| $30.74M | 3.63% | |
| $29.23M | 3.05% | |
| $23.31M | 2.75% | |
| $21.35M | 2.52% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 18, 2026 | Robertson Michelle Executive | Sell | Common Stock | $19.1K | -10K -35.84% | 17,645 <0.01% of shares | low |
| Dec 31, 2025 | Spiegel Robert J. Director | Grant | Common Stock | $7.8K | +6K +3.14% | 194,464 0.03% of shares | low |
| Feb 18, 2026 | Robertson Michelle Executive | Exercise | Common Stock | $0 | +28K | 27,500 <0.01% of shares | low |
| Mar 25, 2026 | Chinoporos Constantine Director | Grant | Stock Option (Right to Buy) | — | +270K | 270,000 0.04% of shares | low |
| Feb 17, 2026 | Eid Joseph Executive | Grant | Stock Option (Right to Buy) | — | +2.2M | 2,220,000 0.35% of shares | low |
| Feb 18, 2026 | Robertson Michelle Executive | Exercise | Restricted Stock Units | — | -28K -25.00% | 82,500 0.01% of shares | low |
| Feb 17, 2026 | Robertson Michelle Executive | Grant | Stock Option (Right to Buy) | — | +1.7M | 1,660,000 0.26% of shares | low |
| Mar 25, 2026 | Andrews Patricia S Director | Grant | Stock Option (Right to Buy) | — | +270K | 270,000 0.04% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| State Street Corporation | Passive13G | — |
| Vanguard Group Inc | Passive13G/A | — |
| Soleus Capital Master Fund, L.P. | Passive13G | — |
| Deep Track Capital, LP | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| GERN | — | 374163103 |