Geron Corp
GERN- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000886744
No open-market purchases or sales by Geron Corp insiders were filed in the last 90 days; 260 institutions reported holding it in 13F filings for Q2 2026, worth $626.1M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +6 vs. previous quarter
- 260
- 13F valueReported value at the end of Q2 2026
- $626.1M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding GERN, Q2 2026
No superinvestor reported holding GERN at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Geron Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 (view filing) | Feb 18 | 1 day | Robertson MichelleEVP, CHIEF FINANCIAL OFFICER | SSale | −9.86K | $1.94 | −$19.1K | −35.8%17.6K after | |
| May 13, 2025 (view filing) | May 9 | 4 days | Lawlis V BryanDirector | PPurchase | +13.3K | $1.18 | +$15.7K | New position13.3K after | |
| Mar 3, 2025 (view filing) | Feb 27 | 4 days | Samuels Scott AlanEVP, Chief Legal Officer | PPurchase | +15.0K | $1.61 | +$24.1K | +128.4%26.7K after | |
| Mar 3, 2025 (view filing) | Feb 27 | 4 days | Scarlett John AChairman, President and CEO | PPurchase | +12.5K | $1.77 | +$22.1K | New position12.5K after | |
| Mar 3, 2025 (view filing) | Feb 27 | 4 days | Ziegler JamesEVP, Chief Commercial Officer | PPurchase | +100.0K | $1.60 | +$160.0K | New position100.0K after | |
| Jul 10, 2024 (view filing) | Jul 8 | 2 days | Grethlein Andrew JEVP, Chief Operating Officer | SSale | −674.3K | $4.56 | −$3.08M | −100.0%0 after | |
| Jun 12, 2024 (view filing) | Jun 10 | 2 days | Feller FayeEVP, Chief Medical Officer | SSale | −287.9K | $4.63 | −$1.33M | −100.0%0 after | |
| Jun 12, 2024 (view filing) | Jun 10 | 2 days | Kapur AnilEVP, Corp Strategy & CCO | SSale | −421.9K | $4.65 | −$1.96M | −100.0%0 after | |
| Jun 5, 2024 (view filing) | Jun 4 | 1 day | Scarlett John AChairman, President and CEO | SSale | −600.0K | $4.00 | −$2.40M | −50.0%600.0K after | |
| May 17, 2024 (view filing) | May 15 | 2 days | Lawlis V BryanDirector | SSale | −35.0K | $3.75 | −$131.3K | −100.0%0 after | 10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Geron Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 49,115,571 | $62.9M | 0.00% | +1,795,792+3.8% | Added |
| Ra Capital Management, L.P. | 42,809,751 | $54.8M | 0.48% | −20,961,615−32.9% | Reduced |
| Soleus Capital Management, L.P. | 42,808,659 | $54.8M | 1.89% | +1,300,000+3.1% | Added |
| State Street Corp | 35,856,671 | $45.9M | 0.00% | +5,359,488+17.6% | Added |
| Citadel Advisors LLC | 29,038,928 | $37.2M | 0.02% | +7,462,359+34.6% | Added |
| Vanguard Capital Management LLC | 27,250,215 | $34.9M | 0.00% | +581,186+2.2% | Added |
| Nantahala Capital Management, LLC | 24,450,000 | $31.3M | 0.95% | +13,225,000+117.8% | Added |
| Clearbridge Investments, LLC | 19,648,853 | $25.2M | 0.02% | +28,533+0.1% | Added |
| Eversept Partners, LP | 18,717,422 | $24.0M | 1.31% | −117,461−0.6% | Reduced |
| Goldman Sachs Group Inc | 16,633,368 | $21.3M | 0.00% | +5,456,777+48.8% | Added |