Who Owns SEPTERNA INC (SEPN)? -- Institutional Holders (2026-06-30)
167 institutions reported holding $1.64B of SEPTERNA INC (SEPN) in SEC 13F filings for 2026-06-30. Largest institutional holders: RA CAPITAL MANAGEMENT, L.P. ($234.3M), TRV GP V, LLC ($208.2M), Driehaus Capital Management LLC ($148.5M), TRV GP VI, LLC ($141.0M), SAMSARA BIOCAPITAL, LLC ($105.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | RA CAPITAL MANAGEMENT, L.P. | $234.3M | 7.0M | Hold |
| 2 | TRV GP V, LLC | $208.2M | 6.2M | Hold |
| 3 | Driehaus Capital Management LLC | $148.5M | 4.4M | Added |
| 4 | TRV GP VI, LLC | $141.0M | 4.2M | Hold |
| 5 | SAMSARA BIOCAPITAL, LLC | $105.5M | 3.1M | Hold |
| 6 | GOLDMAN SACHS GROUP INC | $102.6M | 3.1M | Added |
| 7 | BlackRock, Inc. | $64.7M | 1.9M | Added |
| 8 | Siren, L.L.C. | $63.6M | 1.9M | Trimmed |
| 9 | VANGUARD GROUP INC | $55.1M | 1.6M | Added |
| 10 | Avoro Capital Advisors LLC | $44.8M | 1.3M | Hold |
| 11 | Jupiter Topco LLC | $43.7M | 1.3M | New |
| 12 | PRIMECAP MANAGEMENT CO/CA/ | $39.1M | 1.2M | Added |
| 13 | First Light Asset Management, LLC | $32.3M | 963,260 | Added |
| 14 | ADAR1 Capital Management, LLC | $31.5M | 940,747 | Trimmed |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $22.8M | 679,163 | Added |
| 16 | Caption Management, LLC | $22.7M | 678,006 | New |
| 17 | STATE STREET CORP | $21.9M | 652,630 | Added |
| 18 | LOOMIS SAYLES & CO L P | $20.9M | 624,752 | New |
| 19 | Casdin Capital, LLC | $18.5M | 553,268 | Hold |
| 20 | Catalio Capital Management, LP | $18.0M | 536,152 | Added |
| 21 | ALGERT GLOBAL LLC | $13.3M | 397,487 | Added |
| 22 | Balyasny Asset Management L.P. | $11.7M | 350,442 | Added |
| 23 | TUDOR INVESTMENT CORP ET AL | $11.0M | 328,966 | New |
| 24 | Longaeva Partners L.P. | $10.0M | 298,171 | Added |
| 25 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $9.9M | 295,900 | Added |
Source: SEC Form 13F filings · as of 2026-06-30