Who owns SEPN
124 institutions reported holding SEPN for 2026Q1, together 102% of the company, more than the 120 a quarter earlier.
124
Institutions reporting a position · as of 2026Q1 · up from 120 the quarter before
- Shares held by institutions
- 45.7M
Shares held by institutions · 102% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $1.10B
Reported value · at 2026-03-31 prices, not today's
- Top 5 holders
- 56%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 6
- New positions
- 22
- Positions exited
- 24
- Added to
- 41
- Reduced
- 30
- Top 10 holdersof the company
- 77%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 124 | 45.7M | $1.10B |
| 2025Q4 | 120 | 45.6M | $1.27B |
| 2025Q3 | 82 | 44.5M | $838M |
| 2025Q2 | 89 | 44.4M | $470M |
| 2025Q1 | 71 | 45.3M | $262M |
| 2024Q4 | 71 | 44.1M | $1.01B |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 7.0M | 16% | $168M |
| TRV GP V, LLC | 6.2M | 14% | $149M |
| Driehaus Capital Management LLC | 4.4M | 9.8% | $106M |
| TRV GP VI, LLC | 4.2M | 9.4% | $101M |
| SAMSARA BIOCAPITAL, LLC | 3.1M | 7.0% | $76M |
| GOLDMAN SACHS GROUP INC | 2.9M | 6.5% | $70M |
| Siren, L.L.C. | 2.0M | 4.5% | $48M |
| BlackRock Inc. | 1.8M | 4.1% | $44M |
| VANGUARD GROUP INC | 1.6M | 3.5% | $38M |
| BVF INC/IL | 1.4M | 3.0% | $33M |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
reading the register…