SEPN insider buying
2 cluster buysSepterna, Inc. · Healthcare
When two or more insiders at Septerna, Inc. buy SEPN on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in SEPN plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Feb 20 – Mar 6, 2025Detected Mar 6, 20252 insidersTotal bought$6.7MMarket cap$1.6B
- Oct 28 – Oct 28, 2024Detected Oct 28, 20242 insidersTotal bought$86.8MMarket cap$1.6B
All notable open-market buys in SEPN
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Mar 7, 2025 | Director | 13,319 | $6.93 | $92.3K | SEC ↗ |
| Mar 6, 2025 | Ezekowitz Alancluster Director | 41,355 | $6.00 | $248.1K | SEC ↗ |
| Mar 5, 2025 | Ezekowitz Alancluster Director | 37,835 | $5.82 | $220.2K | SEC ↗ |
| Feb 27, 2025 | Chief Financial Officer | 3,718 | $5.85 | $21.8K | SEC ↗ |
| Feb 27, 2025 | Director, CEO and President | 3,000 | $5.80 | $17.4K | SEC ↗ |
| Feb 26, 2025 | Director, CEO and President | 4,000 | $5.70 | $22.8K | SEC ↗ |
| Feb 25, 2025 | Director, CEO and President | 10,000 | $5.68 | $56.8K | SEC ↗ |
| Feb 25, 2025 | Chief Financial Officer | 6,282 | $5.59 | $35.1K | SEC ↗ |
| Feb 24, 2025 | Third Rock Ventures GP V, LPcluster 10% Owner | 18,861 | $6.00 | $113.2K | SEC ↗ |
| Feb 21, 2025 | Third Rock Ventures GP V, LPcluster 10% Owner | 427,668 | $5.94 | $2.5M | SEC ↗ |
| Feb 21, 2025 | Chief Financial Officer | 5,000 | $5.85 | $29.3K | SEC ↗ |
| Feb 20, 2025 | Third Rock Ventures GP V, LPcluster 10% Owner | 612,674 | $5.92 | $3.6M | SEC ↗ |
| Feb 20, 2025 | Chief Financial Officer | 14,500 | $5.88 | $85.3K | SEC ↗ |
| Feb 19, 2025 | Chief Financial Officer | 10,500 | $5.51 | $57.9K | SEC ↗ |
| Oct 28, 2024 | Shah Rajeev M.cluster Director, 10% Owner | 3,828,400 | $18.00 | $68.9M | SEC ↗ |
| Oct 28, 2024 | TRV GP V, LLCcluster 10% Owner | 370,500 | $18.00 | $6.7M | SEC ↗ |
| Oct 28, 2024 | Shah Rajeev M.cluster Director, 10% Owner | 341,600 | $18.00 | $6.1M | SEC ↗ |
| Oct 28, 2024 | TRV GP V, LLCcluster 10% Owner | 279,500 | $18.00 | $5.0M | SEC ↗ |
More Healthcare stocks with insider cluster buys
SEPN insider buying — FAQ
- Are insiders buying SEPN stock?
- Yes — 7 distinct insiders have bought SEPN (Septerna, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 10, 2025.
- How much SEPN stock have insiders bought?
- Insiders have bought a combined $93.9M of SEPN across 18 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in SEPN?
- A cluster buy is two or more distinct Septerna, Inc. insiders — officers, directors, or 10% owners — each buying SEPN on the open market within a rolling window. SEPN has 2 detected cluster buys to date.
- Where does this SEPN insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in SEPN
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy SEPN within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding SEPN.