Septerna, Inc. SEPN
CIK 0001984086
Form 3 statements with an event date from Sep 1, 2023 to Sep 26, 2026.
Where insider ownership starts.
Form 3 is an initial ownership statement filed when someone becomes a reporting insider. These holdings do not mean they bought shares that day.
| Holdings date | Insider | Initial holdings | |
|---|---|---|---|
| 2024-10-24 | RA Capital Healthcare Fund LP · RA CAPITAL MANAGEMENT, L.P. · Kolchinsky Peter · Shah Rajeev M. · RA Capital Nexus Fund III, L.P. Director · 10% owner / Director · 10% owner / Director · 10% owner / Director · 10% owner / Director | 3 derivative holdings | ▾ |
| 2024-10-24 | Bhatt Elizabeth Chief Operating Officer | 174.21K shares · 3 derivative holdings | ▾ |
| 2024-10-24 | Xiao Ran Interim CFO | 58.07K shares · 3 derivative holdings | ▾ |
| 2024-10-24 | Kim Jae B. Chief Medical Officer | 1 derivative holding | ▾ |
| 2024-10-24 | Klein Uwe SVP, Biological Sciences | 104.53K shares · 3 derivative holdings | ▾ |
| 2024-10-24 | Tong Jeffrey K Director | 1 derivative holding | ▾ |
| 2024-10-24 | Shaikhly Samira Chief People Officer | 4 derivative holdings | ▾ |
| 2024-10-24 | Third Rock Ventures V, L.P. · Third Rock Ventures VI, L.P. · Third Rock Ventures GP V, LP · Third Rock Ventures GP VI, L.P. · TRV GP VI, LLC · TRV GP V, LLC 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner | 1.05M shares · 2 derivative holdings | ▾ |
| 2024-10-24 | Finer Jeffrey CEO and President · Director | 754.91K shares · 3 derivative holdings | ▾ |
| 2024-10-24 | Ezekowitz Alan Director | 17.42K shares · 4 derivative holdings | ▾ |
| 2024-10-24 | Sharp Shalini Director | 3 derivative holdings | ▾ |
| 2024-10-24 | Simson Jake Director | 1 derivative holding | ▾ |
| 2024-10-24 | Coulie Bernard Director | 3 derivative holdings | ▾ |
| 2024-10-24 | Bassan Abraham Director | 1 derivative holding | ▾ |
| 2024-10-24 | Long Daniel D. SVP, Drug Discovery | 92.91K shares · 3 derivative holdings | ▾ |
Showing 15 / 15 statements in 2024. The complete set is available through the API.
Follow the people behind the trades.
Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.
- Download CSV
- Earlier filings
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For 2024, this page lists 15 of 15 statements.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
list_initial_holdings
{"ticker":"SEPN","page_size":20}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.