TECX insider buying
2 cluster buysTectonic Therapeutic, Inc. · Healthcare
When two or more insiders at Tectonic Therapeutic, Inc. buy TECX 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 TECX 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 10 – Feb 11, 2026Detected Feb 11, 2026High conviction2 insidersTotal bought$182.4KMarket cap$664.6M
- Feb 5 – Feb 5, 2025Detected Feb 5, 2025High conviction2 insidersTotal bought$40.2MMarket cap$617.8M
All notable open-market buys in TECX
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 |
|---|---|---|---|---|---|
| Feb 11, 2026 | REICIN ALISEcluster Director, Chief Executive Officer | 2,500 | $21.10 | $52.8K | SEC ↗ |
| Feb 10, 2026 | Lochner Danielcluster Chief Financial Officer | 6,000 | $21.61 | $129.7K | SEC ↗ |
| Apr 11, 2025 | Director, 10% Owner | 53,706 | $16.31 | $875.9K | SEC ↗ |
| Apr 11, 2025 | Director, 10% Owner | 9,478 | $16.31 | $154.6K | SEC ↗ |
| Apr 10, 2025 | Director, 10% Owner | 45,858 | $16.73 | $767.2K | SEC ↗ |
| Apr 10, 2025 | Director, 10% Owner | 8,092 | $16.73 | $135.4K | SEC ↗ |
| Apr 9, 2025 | Director, 10% Owner | 16,215 | $14.62 | $237.1K | SEC ↗ |
| Apr 7, 2025 | Director, 10% Owner | 412,500 | $17.10 | $7.1M | SEC ↗ |
| Apr 7, 2025 | Director, 10% Owner | 87,500 | $17.10 | $1.5M | SEC ↗ |
| Feb 5, 2025 | SPRINGER TIMOTHY Acluster Director, 10% Owner | 660,000 | $50.00 | $33.0M | SEC ↗ |
| Feb 5, 2025 | SPRINGER TIMOTHY Acluster Director, 10% Owner | 129,294 | $54.14 | $7.0M | SEC ↗ |
| Feb 5, 2025 | Lochner Danielcluster Chief Financial Officer | 4,617 | $54.14 | $250.0K | SEC ↗ |
| Oct 22, 2024 | Director, 10% Owner | 300,000 | $33.59 | $10.1M | SEC ↗ |
| Sep 26, 2024 | Director, 10% Owner | 24,531 | $28.16 | $690.8K | SEC ↗ |
| Sep 26, 2024 | Director, 10% Owner | 18,999 | $29.13 | $553.4K | SEC ↗ |
| Sep 26, 2024 | Director, 10% Owner | 4,070 | $30.10 | $122.5K | SEC ↗ |
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TECX insider buying — FAQ
- Are insiders buying TECX stock?
- Yes — 3 distinct insiders have bought TECX (Tectonic Therapeutic, 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 Feb 12, 2026.
- How much TECX stock have insiders bought?
- Insiders have bought a combined $62.6M of TECX across 16 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in TECX?
- A cluster buy is two or more distinct Tectonic Therapeutic, Inc. insiders — officers, directors, or 10% owners — each buying TECX on the open market within a rolling window. TECX has 2 detected cluster buys to date.
- Where does this TECX 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 TECX
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 TECX 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 TECX.