SEPNHealthcareSmall-Cap
Septerna, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Septerna, Inc. (SEPN), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are SEPN insiders buying or selling?
Septerna, Inc. insiders reported 10 open-market buys ($101.4M) and 15 sells ($68.7M) across 25 Form 4 filings — a net buying position of $32.7M.
Source: SEC EDGAR Form 4
Key Statistics (as of Sep 3, 2026)
Total Form 4 filings
25
SEC EDGAR
Insider filers
9
Insider buys (10)
$101.4M
Insider sells (15)
$68.7M
Insider sentiment
Net buyingNet insider flow of $32.7M in net buying. 1 insider buy in the last 90 days.
Recent SEPN insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 3, 2026 | Daniel D. Long | SVP, Drug Discovery | Sale | 3.3K | $37.83 | $126.1K |
| Aug 14, 2026 | Third Rock Ventures V, L.P. | 10% Owner | Purchase | 147.2K | $50.27 | $7.4M |
| Aug 14, 2026 | Peter Kolchinsky | Director, 10% Owner | Sale | 1.5M | $42.50 | $63.5M |
| Aug 13, 2026 | Elizabeth Bhatt | President and COO | Sale | 25.0K | $44.00 | $1.1M |
| Aug 5, 2026 | Daniel D. Long | SVP, Drug Discovery | Sale | 3.3K | $34.47 | $114.9K |
| Jul 17, 2026 | Elizabeth Bhatt | President and COO | Sale | 4.0K | $33.99 | $136.0K |
| Jul 2, 2026 | Daniel D. Long | SVP, Drug Discovery | Sale | 3.3K | $34.36 | $114.5K |
| Jun 30, 2026 | Samira Shaikhly | Chief People Officer | Sale | 2.2K | $35.18 | $76.6K |
| Jun 24, 2026 | Daniel D. Long | SVP, Drug Discovery | Sale | 15.0K | $35.51 | $532.6K |
| Jun 17, 2026 | Samira Shaikhly | Chief People Officer | Sale | 6.3K | $35.08 | $219.2K |
| Jun 3, 2026 | Samira Shaikhly | Chief People Officer | Sale | 5.9K | $28.93 | $171.7K |
| May 28, 2026 | Samira Shaikhly | Chief People Officer | Sale | 11.8K | $30.06 | $354.7K |
| Apr 17, 2026 | Elizabeth Bhatt | President and COO | Sale | 4.0K | $24.34 | $97.3K |
| Mar 5, 2026 | Samira Shaikhly | Chief People Officer | Sale | 70.5K | $28.10 | $2.0M |
| Feb 20, 2026 | Elizabeth Bhatt | President and COO | Sale | 4.0K | $28.97 | $115.9K |
| Nov 14, 2025 | Daniel D. Long | SVP, Drug Discovery | Sale | 3.5K | $18.06 | $63.2K |
| Mar 10, 2025 | Alan Ezekowitz | Director | Purchase | 13.3K | $6.93 | $92.3K |
| Mar 7, 2025 | Alan Ezekowitz | Director | Purchase | 86.7K | $5.95 | $515.9K |
| Feb 27, 2025 | Jeffrey Finer | CEO and President | Purchase | 17.0K | $5.70 | $97.0K |
| Feb 27, 2025 | Gil M Labrucherie | Chief Financial Officer | Purchase | 10.0K | $5.69 | $56.9K |
| Feb 26, 2025 | Third Rock Ventures VI, L.P. | 10% Owner | Purchase | 18.9K | $6.00 | $113.1K |
| Feb 24, 2025 | Third Rock Ventures VI, L.P. | 10% Owner | Purchase | 1.0M | $5.93 | $6.2M |
| Feb 21, 2025 | Gil M Labrucherie | Chief Financial Officer | Purchase | 30.0K | $5.74 | $172.3K |
| Oct 30, 2024 | Peter Kolchinsky | Director, 10% Owner | Purchase | 4.2M | $18.00 | $75.1M |
| Oct 28, 2024 | Third Rock Ventures V, L.P. | 10% Owner | Purchase | 650.0K | $18.00 | $11.7M |
Showing the 25 most recent of 25 Form 4 filings for Septerna, Inc..
Most active SEPN insiders
- Daniel D. Long5 filings
- Samira Shaikhly5 filings
- Elizabeth Bhatt4 filings
- Alan Ezekowitz2 filings
- Gil M Labrucherie2 filings
Ask anything about SEPN insider activity
Use Trabud's AI agent to query Septerna, Inc.'s Form 4 history in plain English — "Show me SEPN CEO purchases this year" or compare it against any other ticker.
Open the AI agentSEPN insider trading FAQ
Are Septerna, Inc. insiders buying or selling?
Across 25 SEC Form 4 filings, Septerna, Inc. (SEPN) insiders reported 10 open-market purchases totaling $101.4M and 15 sales totaling $68.7M. That is a net buying position of $32.7M.
How many insiders trade SEPN stock?
9 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Septerna, Inc.. The most recent filing was accepted on Sep 3, 2026.
Where does Trabud get SEPN insider trading data?
All SEPN insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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