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)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 19, 2026 | Marshak Richardofficer: Chief Commercial Officer | Sell | 543 | $2.67 |
| May 18, 2026 | Gordon Gary B.director | Buy | 10,000 | $2.46 |
| May 18, 2026 | Wahlstrom Matsdirector | Buy | 60,000 | $2.53 |
| May 18, 2026 | Stansky Michael Pdirector | Buy | 410,000 | $2.50 |
| May 18, 2026 | Stansky Michael Pdirector | Buy | 200,000 | $2.50 |
| May 18, 2026 | Szela Mary Tdirector, officer: CEO and President | Buy | 39,682 | $2.59 |
| May 18, 2026 | Patience Davidofficer: Chief Financial Officer | Buy | 7,100 | $2.43 |
| May 15, 2026 | Gordon Gary B.director | Grant | 24,553 | — |
| May 15, 2026 | Gordon Gary B.director | Grant | 56,403 | $2.52 |
| May 15, 2026 | MATLIN DAVID Jdirector | Grant | 28,201 | — |
| May 15, 2026 | MATLIN DAVID Jdirector | Grant | 23,065 | — |
| May 15, 2026 | MATLIN DAVID Jdirector | Grant | 56,403 | $2.52 |
| May 15, 2026 | Valle Williamdirector | Grant | 28,201 | — |
| May 15, 2026 | Valle Williamdirector | Grant | 24,553 | — |
| May 15, 2026 | Valle Williamdirector | Grant | 56,403 | $2.52 |
| May 15, 2026 | Stansky Michael Pdirector | Grant | 23,501 | — |
| May 15, 2026 | Stansky Michael Pdirector | Grant | 20,089 | — |
| May 15, 2026 | Stansky Michael Pdirector | Grant | 47,003 | $2.52 |
| May 15, 2026 | HICKS KERRY Rdirector | Grant | 28,201 | — |
| May 15, 2026 | HICKS KERRY Rdirector | Grant | 56,403 | $2.52 |
| May 15, 2026 | Wahlstrom Matsdirector | Grant | 37,602 | — |
| May 15, 2026 | Wahlstrom Matsdirector | Grant | 34,226 | — |
| May 15, 2026 | Wahlstrom Matsdirector | Grant | 75,204 | $2.52 |
| May 15, 2026 | Gordon Gary B.director | Grant | 28,201 | — |
| Mar 20, 2026 | Devlin Jodiofficer: Chief of Clinical Operations | Sell | 1,772 | $4.09 |
| Mar 20, 2026 | Szela Mary Tdirector, officer: CEO and President | Sell | 15,944 | $3.85 |
| Mar 20, 2026 | Szela Mary Tdirector, officer: CEO and President | Sell | 4,358 | $4.13 |
| Mar 20, 2026 | Stevens Jenniferofficer: Chief Regulatory Officer | Sell | 774 | $4.12 |
| Mar 20, 2026 | Stevens Jenniferofficer: Chief Regulatory Officer | Sell | 1,552 | $4.09 |
| Mar 20, 2026 | Stevens Jenniferofficer: Chief Regulatory Officer | Sell | 1,204 | $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
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FIRST LIGHT ASSET MANAGEMENT, LLC | New Position | 5.1M | May 15, 2026 |
| AWM INVESTMENT COMPANY, INC. | Increased | 2.1M | May 15, 2026 |
| NANTAHALA CAPITAL MANAGEMENT, LLC | Unchanged | 2.1M | May 15, 2026 |
| NANTAHALA CAPITAL MANAGEMENT, LLC | Increased | 2.1M | Feb 13, 2026 |
| BLACKROCK, INC. | Increased | 1.5M | Feb 12, 2026 |
| VANGUARD GROUP INC | Increased | 1.5M | Jan 29, 2026 |
| BLACKROCK, INC. | Reduced | 1.5M | May 13, 2026 |
| WASATCH ADVISORS LP | New Position | 1.4M | Apr 21, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.3M | May 15, 2026 |
| AWM INVESTMENT COMPANY, INC. | Reduced | 1.2M | Feb 13, 2026 |
| GILDER GAGNON HOWE & CO LLC | Reduced | 979K | Feb 17, 2026 |
| GILDER GAGNON HOWE & CO LLC | Reduced | 889K | May 15, 2026 |
| CERITY PARTNERS LLC | New Position | 787K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 777K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 751K | Feb 9, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.