Septerna, Inc. Common Stock (SEPN)
Who owns Septerna, Inc. Common Stock (SEPN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 51.3% of the shares are freely tradable; institutional investors hold 102.7%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| RA Capital Management, LLC | 15.52 | 6,995,858 | +0.0 | 03/31/2026 |
| TRV GP V, LLC | 13.79 | 6,215,591 | +0.0 | 03/31/2026 |
| Driehaus Capital Management LLC | 9.75 | 4,395,572 | -8.6 | 03/31/2026 |
| TRV GP VI, LLC | 9.34 | 4,211,659 | +0.0 | 03/31/2026 |
| Samsara BioCapital, LLC | 6.99 | 3,149,128 | +0.0 | 03/31/2026 |
| The Goldman Sachs Group Inc | 6.45 | 2,906,427 | +7.0 | 03/31/2026 |
| Siren, L.L.C. | 4.44 | 2,000,000 | +0.0 | 03/31/2026 |
| BlackRock Inc | 4.04 | 1,822,174 | +1.2 | 03/31/2026 |
| Vanguard Group Inc | 3.35 | 1,508,195 | -0.7 | 12/31/2025 |
| Bvf Inc | 3.00 | 1,353,249 | -21.4 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 15. Jul 2026 | Bhatt Elizabeth | President and COO | Sell | 4,000 | 33.99 | 135,974 |
| 15. Jul 2026 | Bhatt Elizabeth | President and COO | Other | 4,000 | 6.81 | 27,240 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.