Institutional Ownership
Septerna Inc
CUSIP 81734D104COMSEPNQ1 2026
13D / 13G Filings
10
Schedule 13D/13G on record
Beneficial Filers
5
Distinct reporting persons
Largest Stake
15.8%
Max % of class reported
Institutional Holders
118
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
10 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Biotechnology Value Fund L P | 13G/A | 3.8% | 1.72M | SEC |
| 2 | Jun 10, 2025 | Driehaus Capital Management LLC | 13G/A | 10.5% | 4.66M | SEC |
| 3 | May 15, 2025 | Driehaus Capital Management LLC | 13G/A | 7.0% | 3.12M | SEC |
| 4 | May 15, 2025 | Biotechnology Value Fund L P | 13G/A | 9.9% | 4.40M | SEC |
| 5 | May 9, 2025 | Third Rock Ventures V, L.P. | 13G/A | 14.0% | 6.22M | SEC |
| 6 | Feb 14, 2025 | Driehaus Capital Management LLC | 13G | 5.8% | 2.59M | SEC |
| 7 | Feb 13, 2025 | Third Rock Ventures V, L.P. | 13G | 14.0% | 6.22M | SEC |
| 8 | Nov 4, 2024 | Ra Capital Management, L.P. | 13D | 15.8% | 7.00M | SEC |
| 9 | Nov 4, 2024 | Samsara Biocapital, L.P. | 13G | 6.2% | 2.77M | SEC |
| 10 | Nov 1, 2024 | Biotechnology Value Fund L P | 13G | 2.9% | 1.30M | SEC |
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Ra Capital Management, L.P. | 7.00M | $168.11M |
| 2 | Trv Gp V, LLC | 6.22M | $149.36M |
| 3 | Driehaus Capital Management LLC | 4.40M | $105.63M |
| 4 | Trv Gp Vi, LLC | 4.21M | $101.21M |
| 5 | Samsara Biocapital, LLC | 3.15M | $75.67M |
| 6 | Goldman Sachs Group Inc | 2.91M | $69.84M |
| 7 | Siren, L.L.C. | 2.00M | $48.06M |
| 8 | Blackrock, Inc. | 1.82M | $43.79M |
| 9 | Bvf Inc/Il | 1.35M | $32.52M |
| 10 | Avoro Capital Advisors LLC | 1.34M | $32.14M |