Save your place

Sign in to WhoBought

Please try again later.

TriSalus Life Sciences, Inc. (TLSI) institutional ownership

Latest close $4.27 Jul 23, 2026
Market cap$159M 52-week range SectorHealthcare
Funds holding · Q1 2026
76
reported TLSI position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
52 buyers · 24 sellers

TriSalus Life Sciences, Inc. (TLSI) price and institutional activity

Dates

Q1 2026

$0 bought by 52 investors
First Light Asset Management, LLCWasatch Advisors LP +50 more
$0 sold by 24 investors
Wealthcare Advisory Partners LLCAlyeska Investment Group, L.P. +22 more
Bought Sold Totals per quarter; hover a bar for the names.

TriSalus Life Sciences, Inc. (TLSI) institutional activity · 76

Investor Type Est. change Change Δ Own Date
First Light Asset Management, LLC · New
Change +5.1M Date Q1 2026
First Light Asset Management, LLC New· Q1 2026 +5.1M Q1 2026
Wasatch Advisors LP · New
Change +1.4M Date Q1 2026
Wasatch Advisors LP New· Q1 2026 +1.4M Q1 2026
Awm Investment Company, Inc. · Added
Change +835K Date Q1 2026
Awm Investment Company, Inc. Added· Q1 2026 +835K Q1 2026
Cerity Partners LLC · New
Change +787K Date Q1 2026
Cerity Partners LLC New· Q1 2026 +787K Q1 2026
Wealthcare Advisory Partners LLC · Exited
Change −644K Δ Own −100.0% Date Q1 2026
Wealthcare Advisory Partners LLC Exited· Q1 2026 −644K −100.0% Q1 2026
Thompson Siegel & Walmsley LLC · New
Change +584K Date Q1 2026
Thompson Siegel & Walmsley LLC New· Q1 2026 +584K Q1 2026
Kennedy Capital Management LLC · New
Change +485K Date Q1 2026
Kennedy Capital Management LLC New· Q1 2026 +485K Q1 2026
Alyeska Investment Group, L.P. · Exited
Change −408K Δ Own −100.0% Date Q1 2026
Alyeska Investment Group, L.P. Exited· Q1 2026 −408K −100.0% Q1 2026
Perkins Capital Management Inc · New
Change +230K Date Q1 2026
Perkins Capital Management Inc New· Q1 2026 +230K Q1 2026
Empire Financial Management Company, LLC · Added
Change +228K Date Q1 2026
Empire Financial Management Company, LLC Added· Q1 2026 +228K Q1 2026
Vanguard · Added
Change +215K Date Q1 2026
Vanguard Added· Q1 2026 +215K Q1 2026
Royce & Associates LP · New
Change +200K Date Q1 2026
Royce & Associates LP New· Q1 2026 +200K Q1 2026
Apis Capital Advisors, LLC · New
Change +180K Date Q1 2026
Apis Capital Advisors, LLC New· Q1 2026 +180K Q1 2026
White Pine Capital LLC · Added
Change +105K Date Q1 2026
White Pine Capital LLC Added· Q1 2026 +105K Q1 2026
Corient Private Wealth LLC · New
Change +91K Date Q1 2026
Corient Private Wealth LLC New· Q1 2026 +91K Q1 2026
Data through Q1 2026 · filed May 21, 2026
15 of 76

Famous investor activity in TriSalus Life Sciences, Inc. (TLSI)

TriSalus Life Sciences, Inc. (TLSI) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Patience David · Officer Tax withholding or exercise payment (F) -$65K
Price $4.46 Qty -15K Owned 261K ΔOwn −5.3% Trade date Jul 1, 2026 Filed date Jul 6, 2026
Patience David Officer Tax withholding or exercise payment (F) $4.46 -15K -$65K 261K −5.3% Jul 1, 2026 Jul 6, 2026
Szela Mary T. · Director Grant (A) $15K
Price $3.87 Qty 4K Owned 1.1M ΔOwn +0.4% Trade date Jun 30, 2026 Filed date Jul 1, 2026
Szela Mary T. Director Grant (A) $3.87 4K $15K 1.1M +0.4% Jun 30, 2026 Jul 1, 2026
Marshak Richard · Officer Grant (A) $2K
Price $3.87 Qty 561 Owned 128K ΔOwn +0.4% Trade date Jun 30, 2026 Filed date Jul 1, 2026
Marshak Richard Officer Grant (A) $3.87 561 $2K 128K +0.4% Jun 30, 2026 Jul 1, 2026
Marshall Richard Henry · Officer 2 operations 180K
Owned 253K Trade date Jun 29, 2026 Filed date Jun 29, 2026
Marshall Richard Henry Officer 2 operations 180K 253K Jun 29, 2026 Jun 29, 2026
Marshak Richard · Officer Sell −$1K
Price $2.67 Qty −543 Owned 125K Trade date May 15, 2026 Filed date May 19, 2026
Marshak Richard Officer Sell $2.67 −543 −$1K 125K May 15, 2026 May 19, 2026
Wahlstrom Mats · Director Buy +$152K
Price $2.53 Qty +60K Owned 148K Trade date May 15, 2026 Filed date May 18, 2026
Wahlstrom Mats Director Buy $2.53 +60K +$152K 148K May 15, 2026 May 18, 2026
Stansky Michael P. · Director 2 operations +$1.5M
Price $2.50 Qty +610K Owned 400K Trade date May 15, 2026 Filed date May 18, 2026
Stansky Michael P. Director 2 operations $2.50 +610K +$1.5M 400K May 15, 2026 May 18, 2026
Szela Mary T. · Director Buy +$103K
Price $2.59 Qty +40K Owned 1.1M Trade date May 15, 2026 Filed date May 18, 2026
Szela Mary T. Director Buy $2.59 +40K +$103K 1.1M May 15, 2026 May 18, 2026
Patience David · CFO Buy +$17K
Price $2.43 Qty +7K Owned 276K Trade date May 15, 2026 Filed date May 18, 2026
Patience David CFO Buy $2.43 +7K +$17K 276K May 15, 2026 May 18, 2026
Gordon Gary B. · Director Buy +$25K
Price $2.46 Qty +10K Owned 73K Trade date May 15, 2026 Filed date May 18, 2026
Gordon Gary B. Director Buy $2.46 +10K +$25K 73K May 15, 2026 May 18, 2026
Hicks Kerry R. · Director 2 operations 85K
Owned 146K Trade date May 14, 2026 Filed date May 15, 2026
Hicks Kerry R. Director 2 operations 85K 146K May 14, 2026 May 15, 2026
Wahlstrom Mats · Director 3 operations 147K
Owned 276K Trade date May 14, 2026 Filed date May 15, 2026
Wahlstrom Mats Director 3 operations 147K 276K May 14, 2026 May 15, 2026
Gordon Gary B. · Director 3 operations 109K
Owned 113K Trade date May 14, 2026 Filed date May 15, 2026
Gordon Gary B. Director 3 operations 109K 113K May 14, 2026 May 15, 2026
Matlin David J. · Director 3 operations 108K
Owned 121K Trade date May 14, 2026 Filed date May 15, 2026
Matlin David J. Director 3 operations 108K 121K May 14, 2026 May 15, 2026
Valle William · Director 3 operations 109K
Owned 113K Trade date May 14, 2026 Filed date May 15, 2026
Valle William Director 3 operations 109K 113K May 14, 2026 May 15, 2026
15 of 48
15 of 48 Sign in to continue to older insider transactions.

TriSalus Life Sciences, Inc. (TLSI) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 2.7M
% of shares outstanding 10.9% Filing date Feb 8, 2022
BlackRock Inc. 2.7M 10.9% Feb 8, 2022
First Light Asset Management, LLC 6.6M
% of shares outstanding 10.7% Filing date Jul 7, 2026
First Light Asset Management, LLC 6.6M 10.7% Jul 7, 2026
Utmost Group PLC 3.5M
% of shares outstanding 5.7% Filing date May 12, 2026
Utmost Group PLC 3.5M 5.7% May 12, 2026
James J. Pallotta 3.2M
% of shares outstanding 5.2% Filing date May 20, 2026
James J. Pallotta 3.2M 5.2% May 20, 2026
Nantahala Capital Management, LLC 2.0M
% of shares outstanding 4.1% Filing date Nov 14, 2025
Nantahala Capital Management, LLC 2.0M 4.1% Nov 14, 2025
5 of 5

TriSalus Life Sciences, Inc. (TLSI) ownership FAQ

Who owns TLSI?

76 reporting institutions disclosed TLSI position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.