TLSI insider buying
3 cluster buysTriSalus Life Sciences, Inc. · Healthcare
When two or more insiders at TriSalus Life Sciences, Inc. buy TLSI 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 TLSI 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
- May 15 – May 15, 2026Detected May 15, 2026High conviction3 insidersTotal bought$1.8MMarket cap$273.9M
- Feb 23 – Feb 23, 2026Detected Feb 23, 2026High conviction3 insidersTotal bought$1.7MMarket cap$273.9M
- Dec 17, 2024 – Jan 27, 2025Detected Jan 27, 2025High conviction2 insidersTotal bought$379.6KMarket cap$264.7M
All notable open-market buys in TLSI
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 |
|---|---|---|---|---|---|
| May 15, 2026 | Stansky Michael Pcluster Director | 410,000 | $2.50 | $1.0M | SEC ↗ |
| May 15, 2026 | Stansky Michael Pcluster Director | 200,000 | $2.50 | $500.0K | SEC ↗ |
| May 15, 2026 | Wahlstrom Matscluster Director | 60,000 | $2.53 | $151.8K | SEC ↗ |
| May 15, 2026 | Szela Mary Tcluster Director, CEO and President | 39,682 | $2.59 | $102.8K | SEC ↗ |
| Feb 23, 2026 | Stansky Michael Pcluster Director | 243,900 | $4.10 | $1.0M | SEC ↗ |
| Feb 23, 2026 | Stansky Michael Pcluster Director | 117,198 | $4.10 | $480.5K | SEC ↗ |
| Feb 23, 2026 | Valle Williamcluster Director | 30,487 | $4.10 | $125.0K | SEC ↗ |
| Feb 23, 2026 | Szela Mary Tcluster Director, CEO and President | 30,487 | $4.10 | $125.0K | SEC ↗ |
| Feb 23, 2026 | Director | 9,756 | $4.10 | $40.0K | SEC ↗ |
| Feb 23, 2026 | Chief Financial Officer | 3,657 | $4.10 | $15.0K | SEC ↗ |
| Feb 5, 2025 | Chief Financial Officer | 6,000 | $5.65 | $33.9K | SEC ↗ |
| Jan 30, 2025 | Director, CEO AND PRESIDENT | 5,010 | $5.28 | $26.5K | SEC ↗ |
| Jan 29, 2025 | Director, CEO AND PRESIDENT | 5,030 | $5.03 | $25.3K | SEC ↗ |
| Jan 28, 2025 | Director, Chief Manuf, Strategy&Bus Dev. | 15,000 | $5.17 | $77.6K | SEC ↗ |
| Jan 28, 2025 | Director, CEO AND PRESIDENT | 4,716 | $5.12 | $24.1K | SEC ↗ |
| Jan 27, 2025 | Young James Emmettcluster Chief Financial Officer | 24,000 | $5.40 | $129.6K | SEC ↗ |
| Jan 27, 2025 | Director, Chief Manuf, Strategy&Bus Dev. | 15,000 | $5.31 | $79.7K | SEC ↗ |
| Jan 27, 2025 | Director, CEO AND PRESIDENT | 4,826 | $5.42 | $26.2K | SEC ↗ |
| Dec 17, 2024 | Frankenius Equity ABcluster 10% Owner | 62,972 | $3.97 | $250.0K | SEC ↗ |
| Nov 22, 2024 | Director, 10% Owner | 5,000 | $4.55 | $22.8K | SEC ↗ |
| Nov 21, 2024 | Director, 10% Owner | 8,687 | $4.44 | $38.6K | SEC ↗ |
| Nov 20, 2024 | Director, 10% Owner | 2,040 | $4.16 | $8.5K | SEC ↗ |
| Sep 13, 2024 | Director, CEO AND PRESIDENT | 6,000 | $5.00 | $30.0K | SEC ↗ |
| Sep 13, 2024 | Director, CEO AND PRESIDENT | 1,295 | $4.83 | $6.3K | SEC ↗ |
| Sep 12, 2024 | Director, CEO AND PRESIDENT | 7,520 | $5.20 | $39.1K | SEC ↗ |
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TLSI insider buying — FAQ
- Are insiders buying TLSI stock?
- Yes — 12 distinct insiders have bought TLSI (TriSalus Life Sciences, Inc.) on the open market, including 3 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was May 18, 2026.
- How much TLSI stock have insiders bought?
- Insiders have bought a combined $4.4M of TLSI across 26 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in TLSI?
- A cluster buy is two or more distinct TriSalus Life Sciences, Inc. insiders — officers, directors, or 10% owners — each buying TLSI on the open market within a rolling window. TLSI has 3 detected cluster buys to date.
- Where does this TLSI 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 TLSI
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 TLSI 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 TLSI.