Geron
- Market cap
- 770.97M
- P/E (TTM)i
- -10.91
- P/Bi
- 3.53
- EPSi
- -0.13
- Div yieldi
- 0.00%
- 52W posi
- 16%
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
- Total institutional ownership (as a % of shares) was little changed.
Institutional ownership
- Held by institutions
- 74.84% +0.01pp
- Institutions
- 291
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions added shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Top holders as of 2026-06-30
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 46 buys · 3 sells
| Name | Role | Stake |
|---|---|---|
| Robert Jay Spiegel | Independent Director | 0.03% |
| Susan Molineaux | Independent Director | 0.02% |
| James Ziegler | Executive Vice President | 0.02% |
| Elizabeth O'Farrell | Lead Independent Director | 0.01% |
| Scott Samuels | Executive Vice President | 0.00% |
| Michelle Robertson | Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer | 0.00% |
| V. Lawlis | Independent Director | 0.00% |
| Ahmed ElNawawi | Executive Vice President | 0.00% |
| Gaurav Aggarwal | Director | -- |
| Joseph Eiden | -- | -- |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-29 | Robert Jay Spiegel | Independent Director | Other Acquisition | +6,351 | $1.23 |
| 2026-06-29 | Robert Jay Spiegel | Independent Director | Other Acquisition | +6,103 | $1.28 |
| 2026-05-19 | Elizabeth O'Farrell | Lead Independent Director | Other Derivative Acquisition | +220,000 | $1.26 |
| 2026-05-19 | Robert Jay Spiegel | Independent Director | Other Derivative Acquisition | +220,000 | $1.26 |
| 2026-05-19 | Susan Molineaux | Independent Director | Other Derivative Acquisition | +220,000 | $1.26 |
| 2026-05-19 | John McDonald | Independent Director | Other Derivative Acquisition | +220,000 | $1.26 |
| 2026-05-19 | Dawn Bir | Independent Director | Other Derivative Acquisition | +220,000 | $1.26 |
| 2026-04-12 | Timothy Williams | Executive Vice President | Other Derivative Acquisition | +2,500,000 | $1.73 |
| 2026-03-30 | Robert Jay Spiegel | Independent Director | Other Acquisition | +5,243 | $1.49 |
| 2026-03-24 | Patricia Susan Andrews | Director | Other Derivative Acquisition | +270,000 | $1.57 |
| 2026-03-24 | Constantine Chinoporos | Director | Other Derivative Acquisition | +270,000 | $1.57 |
| 2026-02-17 | Michelle Robertson | Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer | Derivative Exercise and Sale | -9,855 | $1.94 |
| 2026-02-17 | Michelle Robertson | Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer | Derivative Exercise and Retained | +17,645 | -- |
| 2026-02-16 | Joseph Eiden | -- | Other Derivative Acquisition | +2,220,000 | $1.80 |
| 2026-02-16 | Michelle Robertson | Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer | Other Derivative Acquisition | +1,660,000 | $1.80 |
| 2025-12-30 | Robert Jay Spiegel | Independent Director | Other Acquisition | +5,918 | $1.32 |
| 2025-12-14 | James Ziegler | Executive Vice President | Intent to Sell (Form 144) | -20,000 | $1.37 |
| 2025-10-19 | Ahmed ElNawawi | Executive Vice President | Other Derivative Acquisition | +3,000,000 | $1.27 |
| 2025-10-19 | Ahmed ElNawawi | Executive Vice President | Initial Statement of Beneficial | 0 | -- |
| 2025-09-29 | Robert Jay Spiegel | Independent Director | Other Acquisition | +5,702 | $1.37 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 08:45:12 · For reference only, not investment advice and not tailored to your situation.