TriSalus Life Sciences, Inc. (TLSI) Insider Trading

Over the last 3 months, TLSI insiders made 6 open-market buys and 15 sales, a net purchase of $1.7M (SEC Form 4). Multiple insiders bought within days of each other (cluster buying). Over the last 6 months, 52 institutions increased and 26 reduced their position (13F).

Insider Activity

Sentiment
92/100
Buys (3m)
6
Sells (3m)
15
Net (3m)
$1.7M
Insiders buyingCluster buying
Insider trades by month Buys Sells
Jan
Feb
May
Feb
Mar
May
Context3-month price -36.4%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
May 19, 2026Marshak Richardofficer: Chief Commercial OfficerSell543$2.67
May 18, 2026Gordon Gary B.directorBuy10,000$2.46
May 18, 2026Wahlstrom MatsdirectorBuy60,000$2.53
May 18, 2026Stansky Michael PdirectorBuy410,000$2.50
May 18, 2026Stansky Michael PdirectorBuy200,000$2.50
May 18, 2026Szela Mary Tdirector, officer: CEO and PresidentBuy39,682$2.59
May 18, 2026Patience Davidofficer: Chief Financial OfficerBuy7,100$2.43
May 15, 2026Gordon Gary B.directorGrant24,553
May 15, 2026Gordon Gary B.directorGrant56,403$2.52
May 15, 2026MATLIN DAVID JdirectorGrant28,201
May 15, 2026MATLIN DAVID JdirectorGrant23,065
May 15, 2026MATLIN DAVID JdirectorGrant56,403$2.52
May 15, 2026Valle WilliamdirectorGrant28,201
May 15, 2026Valle WilliamdirectorGrant24,553
May 15, 2026Valle WilliamdirectorGrant56,403$2.52
May 15, 2026Stansky Michael PdirectorGrant23,501
May 15, 2026Stansky Michael PdirectorGrant20,089
May 15, 2026Stansky Michael PdirectorGrant47,003$2.52
May 15, 2026HICKS KERRY RdirectorGrant28,201
May 15, 2026HICKS KERRY RdirectorGrant56,403$2.52
May 15, 2026Wahlstrom MatsdirectorGrant37,602
May 15, 2026Wahlstrom MatsdirectorGrant34,226
May 15, 2026Wahlstrom MatsdirectorGrant75,204$2.52
May 15, 2026Gordon Gary B.directorGrant28,201
Mar 20, 2026Devlin Jodiofficer: Chief of Clinical OperationsSell1,772$4.09
Mar 20, 2026Szela Mary Tdirector, officer: CEO and PresidentSell15,944$3.85
Mar 20, 2026Szela Mary Tdirector, officer: CEO and PresidentSell4,358$4.13
Mar 20, 2026Stevens Jenniferofficer: Chief Regulatory OfficerSell774$4.12
Mar 20, 2026Stevens Jenniferofficer: Chief Regulatory OfficerSell1,552$4.09
Mar 20, 2026Stevens Jenniferofficer: Chief Regulatory OfficerSell1,204$4.13

Source: TLSI SEC Form 4 filings, latest May 19, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their TLSI positions over the last 6 months (SEC Form 13F).

Increased
52
New positions
46
Reduced
26
Sold out
16
Largest moves
InstitutionActionSharesFiled
FIRST LIGHT ASSET MANAGEMENT, LLCNew Position5.1MMay 15, 2026
AWM INVESTMENT COMPANY, INC.Increased2.1MMay 15, 2026
NANTAHALA CAPITAL MANAGEMENT, LLCUnchanged2.1MMay 15, 2026
NANTAHALA CAPITAL MANAGEMENT, LLCIncreased2.1MFeb 13, 2026
BLACKROCK, INC.Increased1.5MFeb 12, 2026
VANGUARD GROUP INCIncreased1.5MJan 29, 2026
BLACKROCK, INC.Reduced1.5MMay 13, 2026
WASATCH ADVISORS LPNew Position1.4MApr 21, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1.3MMay 15, 2026
AWM INVESTMENT COMPANY, INC.Reduced1.2MFeb 13, 2026
GILDER GAGNON HOWE & CO LLCReduced979KFeb 17, 2026
GILDER GAGNON HOWE & CO LLCReduced889KMay 15, 2026
CERITY PARTNERS LLCNew Position787KMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased777KMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased751KFeb 9, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.