Geron
GERN · NASDAQ
$1.24+$0.04 (+3.33%)TodayMarket closed ·
Prev close $1.20
Who owns GERN
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 45.1% of GERN’s shares.
- BlackRock Institutional Trust Company, N.A.6.7%
- RA Capital Management, LP6.7%
- Soleus Capital Management, L.P.6.7%
- State Street Investment Management (US)5.6%
- Next 6 largest institutions19.5%
- All other shareholders54.9%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 42.82M | 6.68% |
| RA Capital Management, LP | 42.81M | 6.67% |
| Soleus Capital Management, L.P. | 42.81M | 6.67% |
| State Street Investment Management (US) | 35.86M | 5.59% |
| Citadel Advisors LLC | 29.04M | 4.53% |
| Vanguard Capital Management, LLC | 27.25M | 4.25% |
| ClearBridge Investments, LLC | 19.65M | 3.06% |
| Eversept Partners, LP | 18.72M | 2.92% |
| Goldman Sachs & Co. LLC | 15.94M | 2.48% |
| Geode Capital Management, L.L.C. | 14.56M | 2.27% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| State Street SPDR S&P Biotech ETF | 23.02M | 3.59% |
| Vanguard Total Stock Market Index Fund | 20.45M | 3.19% |
| iShares Russell 2000 ETF | 14.42M | 2.25% |
| Vanguard Explorer Fund | 12.98M | 2.02% |
| ClearBridge Small Cap Growth Fund | 6.32M | 0.98% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of GERN in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Spiegel Robert J. | Award | 6.35K | $7.81K |
| Spiegel Robert J. | Award | 6.10K | $7.81K |
| McDonald John F | Award | 220.00K | — |
| O'Farrell Elizabeth G. | Award | 220.00K | — |
| Bir Dawn Carter | Award | 220.00K | — |
| Molineaux Susan | Award | 220.00K | — |
| Spiegel Robert J. | Award | 220.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 73.89M
- Days to cover
- 7.39
- % of shares outstanding
- 11.52%
- Average daily volume
- 10.00M
- Change since last report
- −10.6%
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