TLSIW · Insider Trading

TriSalus Life Sciences, Inc. Warrant

Every open-market purchase and sale reported by TLSIW officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
10
code P
Sales
6
code S
Reporting Insiders
17
current holders
TLSIW — Recent Form 4 Transactions (latest 2026-05-19)
FiledInsiderRole TypeSharesValue
2026-05-19 Richard Marshak Chief Commercial Officer Sell −543 −$1.45K
2026-05-18 David Patience Chief Financial Officer Buy +7,100 +$17.25K
2026-05-18 Mats Wahlstrom Director Buy +60,000 +$151.80K
2026-05-18 Mary T Szela CEO and President Buy +39,682 +$102.78K
2026-05-18 Gary B. Gordon Director Buy +10,000 +$24.60K
2026-05-18 Michael P Stansky Director Buy +610,000 +$1.52M
2026-05-15 Michael P Stansky Director A +43,590 —
2026-05-15 Gary B. Gordon Director A +52,754 —
2026-05-15 Kerry R Hicks Director A +28,201 —
2026-05-15 David J Matlin Director A +51,266 —
2026-05-15 Mats Wahlstrom Director A +71,828 —
2026-05-15 William Valle Director A +52,754 —
2026-04-20 Equity AB Frankenius 10%+ Owner C +759,000 —
2026-04-01 David J Matlin Director C +330,000 —
2026-03-20 Mary T Szela CEO and President Sell −20,302 −$79.38K
2026-03-20 Richard Marshak Chief Commercial Officer Sell −3,457 −$14.21K
2026-03-20 Bryan F. Cox Chief of Research Sell −3,184 −$13.09K
2026-03-20 Jennifer Stevens Chief Regulatory Officer Sell −3,530 −$14.51K
2026-03-20 Jodi Devlin Chief of Clinical Operations Sell −3,207 −$13.17K
2026-02-23 Mary T Szela CEO and President Buy +30,487 +$125.00K
2026-02-23 Gary B. Gordon Director Buy +9,756 +$40.00K
2026-02-23 William Valle Director Buy +30,487 +$125.00K
2026-02-23 David Patience Chief Financial Officer Buy +3,657 +$14.99K
2026-02-23 Michael P Stansky Director Buy +361,098 +$1.48M
2026-02-11 Michael P Stansky Director A +92,537 deriv. —
2025-11-25 Bryan F. Cox Chief of Research A +40,000 —
2025-11-25 Richard Marshak Chief Commercial Officer A +60,000 —
2025-11-25 David Patience Chief Financial Officer A +65,000 —
2025-11-25 Jodi Devlin Chief of Clinical Operations A +50,000 —
2025-11-25 Jennifer Stevens Chief Regulatory Officer A +50,000 —
2025-11-25 Mary T Szela CEO and President A +550,000 —
2025-08-29 David Patience Chief Financial Officer A +248,899 deriv. —
2025-08-15 David Patience Chief Financial Officer A +200,000 —
2025-06-27 Kerry R Hicks Director A +15,000 deriv. —
2025-06-27 David J Matlin Director A +15,000 deriv. —
2025-06-27 William Valle Director A +15,000 deriv. —
2025-06-27 Arjun JJ Desai Director A +15,000 deriv. —
2025-06-27 Mats Wahlstrom Director A +15,000 deriv. —
2025-06-27 Gary B. Gordon Director A +15,000 deriv. —
2025-06-27 Sean Murphy Director A +15,000 deriv. —
2025-05-21 Sean Murphy Director A +44,884 +$232.50K
2025-05-21 Jodi Devlin Chief of Clinical Operations MIXED +19,367 +$100.32K
2025-05-21 Bryan F. Cox Chief of Research MIXED +10,958 +$56.76K
2025-05-21 James Emmett Young Chief Financial Officer A +13,175 +$68.25K
2025-05-21 Jennifer Stevens Chief Regulatory Officer MIXED +19,751 +$102.31K
2025-05-21 Richard Marshak Chief Commercial Officer MIXED +14,831 +$76.82K
2025-02-19 Mary T Szela CEO AND PRESIDENT A +21,089 —
2025-02-19 Jodi Devlin Chief of Clinical Operations A +5,272 —
2025-02-19 Richard Marshak Chief Commercial Officer A +7,644 —
2025-02-19 Bryan F. Cox CHIEF OF RESEARCH A +11,450 —
TLSIW — Current Insider Holders
InsiderRole Shares HeldValue
Equity AB Frankenius 10%+ Owner 6,989,748 $5.24M
Michael P Stansky Director 1,640,420 $1.23M
Mats Wahlstrom Director 1,592,002 $1.19M
David J Matlin Director 1,323,210 $992.41K
Mary T Szela CEO and President 1,065,215 $798.91K
Kerry R Hicks Director 624,635 $468.48K
Sean Murphy Chief Manuf, Strategy&Bus Dev. 481,524 $361.14K
David Patience Chief Financial Officer 275,757 $206.82K
Arjun JJ Desai Director 247,127 $185.35K
Bryan F. Cox Chief of Research 163,994 $123.00K
Richard Marshak Chief Commercial Officer 125,101 $93.83K
Jennifer Stevens Chief Regulatory Officer 124,110 $93.08K
Jodi Devlin Chief of Clinical Operations 99,409 $74.56K
William Valle Director 83,241 $62.43K
James Emmett Young Chief Financial Officer 79,663 $59.75K
Gary B. Gordon Director 72,510 $54.38K
Liselotte Hyveled Director 10,040 $7.53K
TLSIW Insider Trading FAQ
Who are the insiders at TLSIW?
17 officers, directors and 10%+ beneficial owners currently report holdings in TLSIW via SEC Form 4.
Are TLSIW insiders buying or selling?
Across the 50 most recent Form 4 filings for TLSIW, 10 were open-market purchases (code P) and 6 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is TLSIW insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent TLSIW filing is dated 2026-05-19.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the TLSIW quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.