RA Capital Healthcare Fund LP's Form 4 filing
Septerna, Inc. (SEPN) · filed Aug 14, 2026
- Accession no.
- 0001231919-26-000938
- Filed
- Aug 14, 2026, 5:11 PM ET
- Trade date
- Aug 12, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Not checked
This filing lists 2 non-derivative transactions. Open-market sales total $63.5M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| RA Capital Healthcare Fund LPCIK 0001315082 | Director, 10% Owner |
| Ra Capital Management, L.P.CIK 0001346824 | Director, 10% Owner |
| Kolchinsky PeterCIK 0001384859 | Director, 10% Owner |
| Shah Rajeev M.CIK 0001619841 | Director, 10% Owner |
| RA Capital Nexus Fund III, L.P.CIK 0001883840 | Director |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | Common Stock | SSaleDisposed | −746,500 | $42.50 | −$31,726,250 | 4,777,415 | Indirect | |
| Aug 12, 2026 | Common Stock | SSaleDisposed | −746,500 | $42.50 | −$31,726,250 | 725,443 | Indirect |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
No transaction price on this filing refers to a footnote.
Remarks
Jake Simson, a Partner of the Adviser, serves on the Issuer's board of directors.