As of November 6, 2026, Geron Corp. is a publicly traded company (Nasdaq: GERN); its largest reported holder is RA Capital, with 9.9% on Schedule 13G/A of August 14, 2026, then Soleus Capital Master Fund, L.P. (6.5%). The largest insider holding is Robert J. Spiegel, a director, with 212,161 shares (0.03% of shares outstanding), per Form 4 of October 1, 2026 (Schedule 13G/A, August 14, 2026).
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Is Geron Corp. a real, registered company?
- Geron Corporation files with the SEC under CIK 886744 (its SEC filings).
- Its shares are listed under the ticker GERN on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Foster City, California, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under GERON CORPORATION in our court records and SEC 8-K records (as of 2026-11-06).
- Layoffs: 1 exit or restructuring plan reported on Form 8-K, Item 2.05 (latest filed 2025-12-16, about 260 jobs).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names RA Capital (filed 2026-08-14).
Who are Geron Corp.'s owners and officers?
Geron Corp.: incorporated in Delaware; business address in Foster City, California; industry Pharmaceutical Preparations (Schedule 13G/A, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-14 | Ra Capital Management, L.P. | 9.9% |
| Schedule 13G, 2026-08-07 | State Street Corporation | 5.6% |
| Schedule 13G/A, 2026-05-15 | Deep Track Capital, LP | 4.95% |
| Schedule 13G/A, 2026-05-08 | Soleus Capital Master Fund, L.P. | 6.5% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-03-03 | Soleus Capital Master Fund, L.P. | 5.2% |
| Schedule 13G/A, 2026-02-13 | Deep Track Capital, LP | 5.09% |
| Schedule 13G/A, 2025-08-14 | Deep Track Capital, LP | 6.75% |
Questions about who owns Geron Corp.
Who owns Geron Corp.?
On this page, 3 holders' latest ownership filings report 5% or more of Geron Corp.: Ra Capital Management, L.P. (9.9%, Schedule 13G/A, filed 2026-08-14), Soleus Capital Master Fund, L.P. (6.5%, Schedule 13G/A, filed 2026-05-08) and State Street Corporation (5.6%, Schedule 13G, filed 2026-08-07).
Who are the largest shareholders of Geron Corp.?
By the share each holder's latest filing reports, the largest holders of Geron Corp. on this page are Ra Capital Management, L.P. (9.9%), Soleus Capital Master Fund, L.P. (6.5%) and State Street Corporation (5.6%).
When did Ra Capital Management, L.P. buy into Geron Corp.?
The filings give report dates, not purchase dates. The earliest filing from Ra Capital Management, L.P. on this page is the Schedule 13G/A, filed 2026-08-14, reporting 9.9%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 8 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
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Which insiders own Geron Corp. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 212,161 shares (0.03% of shares outstanding) (Form 4, 2026-10-01).
- , the chairman and chief executive: 137,500 shares (0.02% of shares outstanding), 12,500 held directly and 125,000 indirectly (Form 4, 2025-03-03).
- , the executive vice president and chief commercial officer: 100,000 shares (0.02% of shares outstanding) (Form 4, 2025-03-03).
- , the executive vice president and chief legal officer: 26,682 shares (0.00% of shares outstanding) (Form 4, 2025-03-03).
- , the chief financial officer and executive vice president: 17,645 shares (0.00% of shares outstanding) (Form 4, 2026-02-19).
Shares outstanding: 644,238,859 as of 2026-10-30, from the company's latest SEC cover page.
How much has Geron Corp. raised?
No fundraising or offering filing from Geron Corp. is on file with us.
Red flags found
1 exit or restructuring plan on Form 8-K (latest Form 8-K, 2025-12-16).
Keep reading
More on Geron Corp. and the records around it.
Geron Corp. elsewhere on the record
- 5%+ stake filings Aug 2026
- Layoff notices Dec 2025
Companies that share a holder
- Soleus Capital Master Fund, L.P. also filed stake reports on 24 other companies: Beta Bionics, Inc. (Nov 2026), Evolus, Inc (Nov 2026), INSPIRE MEDICAL SYSTEMS, INC. (Nov 2026)
- Deep Track Capital, LP also filed stake reports on 59 other companies: Alector, Inc. (Oct 2026), TCGX Acquisition Corp. II (Oct 2026), Frazier Life Sciences Acquisition Corp. II (Oct 2026)
- RA Capital Management, L.P. also filed stake reports on 100 other companies: Climb Bio, Inc. (Nov 2026), Bambusa Therapeutics, Inc. (Nov 2026), SOLID BIOSCIENCES INC. (Nov 2026)
Related pages
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https://mentionfox.com/who-owns/geron