TLSI

TriSalus Life Sciences, Inc.

Healthcare Surgical & Medical Instruments & Apparatus Market cap: $217.4M All insider activity → Quote and statistics → Sign in to watch TLSI Sign in to set a price alert

AI summary Cluster of open-market purchases by directors and executives following the May 2026 financial results filing.

Insider Score Band 80+

Research score: 74
AI adjustment: +9

Research score, not a recommendation.

Total bought$1.8M6 Form 4 purchases

Distinct insiders5open-market buyers

Lead insiderSzela Mary TCEO

Cluster window2026-05-15single day · active

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

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Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders

83%

Seniority executive rank of buyers (CEO/CFO/Director)

85%

Commitment purchase size relative to company & holdings

84%

Context buying into stock weakness signals conviction

100%

Timing coordinated purchases within a tight window

100%

Routine-purchase discount × 1.00

Company-type / offering discount × 1.00

Net insider selling penalty − 1

Why are they buying?

AI · discretionary · catalyst credible · documented

The insider purchases occurred shortly after the company filed its latest quarterly report on Form 10-Q on May 12, 2026, indicating the buying likely reflects management and board confidence following the periodic earnings disclosure.

Multiple insiders, including the CEO, CFO, and several directors, acquired shares on the open market on May 15, 2026, totaling over $1.7 million in open-market transactions.

Filing references and sources

Form 8-K: Results of Operations and Financial Condition (opens in a new tab)

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

Loading price history…

Transactions

6 Form 4 trades · 5 insiders Sign in to download CSV

Purchases in this cluster, grouped by insider, largest first
Date	Insider	Role	Shares	Price	Value	Filing
2026-05-15	Stansky Michael P history of Stansky Michael P's purchases	Director	610,000	$2.50 avg	$1.5M
2026-05-15	Stansky Michael P		200,000	$2.50	$500.0K	SEC filing for Stansky Michael P (opens in a new tab)
2026-05-15	Stansky Michael P		410,000	$2.50	$1.0M	SEC filing for Stansky Michael P (opens in a new tab)
2026-05-15	Wahlstrom Mats 3 purchases with a 63-day result · median +51.0%	Director	60,000	$2.53	$151.8K	SEC filing for Wahlstrom Mats (opens in a new tab)
2026-05-15	Szela Mary T 5 purchases with a 63-day result · median +6.2%	CEO	39,682	$2.59	$102.8K	SEC filing for Szela Mary T (opens in a new tab)
2026-05-15	Gordon Gary B. history of Gordon Gary B.'s purchases	Director	10,000	$2.46	$24.6K	SEC filing for Gordon Gary B. (opens in a new tab)
2026-05-15	Patience David history of Patience David's purchases	CFO	7,100	$2.43	$17.3K	SEC filing for Patience David (opens in a new tab)
Total					$1.8M

Other buying runs at TLSI

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days +16.6%63 days +57.4%126 days –

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window	Insiders	Total	Score	21 days	63 days	126 days	Status
2026-02-23	5	$1.8M	66	-20.5%	-50.4%	-19.6%	closed
2025-01-27 → 2025-02-05	3	$422.8K	64	+18.3%	+12.8%	-13.4%	closed