SeaStar Medical Holding Corporation (ICU) Insider Trading
Over the last 3 months, ICU insiders made 1 open-market buy and 0 sales, a net purchase of $2K (SEC Form 4). Over the last 6 months, 1 institutions increased and 9 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
1
Sells (3m)
0
Net (3m)
$2.5K
Insiders buyingFirst buy in 3 quarters
Insider trades by month Buys Sells
May
Jun
Jul
Aug
Dec
Aug
Context3-month price -9.5%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 19, 2026 | Messinger Michaelofficer: Chief Financial Officer | Buy | 750 | $3.27 |
| Jul 2, 2026 | Baird Jennifer Adirector | Grant | 4,000 | — |
| Jul 2, 2026 | Van Heel Kennethdirector | Grant | 4,000 | — |
| Jul 2, 2026 | Neuman Johndirector | Grant | 4,000 | — |
| Jul 2, 2026 | Vincent Bernadette Ndirector | Grant | 4,000 | — |
| Jul 2, 2026 | Schlorff Ericofficer: Chief Executive Officer | Grant | 10,288 | — |
| Jul 2, 2026 | Chung Kevinofficer: Chief Medical Officer | Grant | 7,202 | — |
| Feb 10, 2026 | Van Heel Kennethdirector | Grant | 3,000 | — |
| Feb 10, 2026 | Vincent Bernadette Ndirector | Grant | 3,000 | — |
| Feb 10, 2026 | Neuman Johndirector | Grant | 3,000 | — |
| Feb 10, 2026 | Baird Jennifer Adirector | Grant | 3,000 | — |
| Feb 10, 2026 | Towne Bradford Kofficer: Principal Accounting Officer | Grant | 7,500 | — |
| Feb 10, 2026 | Chung Kevinofficer: Chief Medical Officer | Grant | 15,000 | — |
| Feb 10, 2026 | Schlorff Ericofficer: Chief Executive Officer | Grant | 30,000 | — |
| Dec 22, 2025 | Baird Jennifer Adirector | Buy | 4,200 | $0.24 |
| Dec 11, 2025 | Messinger Michaelofficer: Chief Financial Officer | Buy | 14,500 | $0.35 |
| Aug 28, 2025 | Van Heel Kennethdirector | Buy | 10,000 | $0.86 |
| Aug 28, 2025 | Van Heel Kennethdirector | Buy | 25,000 | $0.89 |
| Aug 25, 2025 | Chung Kevinofficer: Chief Medical Officer | Buy | 10,000 | $0.80 |
| Jul 16, 2025 | Neuman Johndirector | Option | 2,667 | — |
| Jul 16, 2025 | Vincent Bernadette Ndirector | Grant | 4,000 | — |
| Jul 16, 2025 | Vincent Bernadette Ndirector | Option | 2,667 | — |
| Jul 16, 2025 | Van Heel Kennethdirector | Grant | 4,000 | — |
| Jul 16, 2025 | Van Heel Kennethdirector | Option | 4,000 | — |
| Jul 16, 2025 | Neuman Johndirector | Grant | 4,000 | — |
| Jul 16, 2025 | Baird Jennifer Adirector | Grant | 4,000 | — |
| Jul 3, 2025 | Chung Kevinofficer: Chief Medical Officer | Option | 5,000 | — |
| Jul 3, 2025 | Schlorff Ericdirector, officer: Chief Executive Officer | Option | 21,667 | — |
| Jul 2, 2025 | Baird Jennifer Adirector | Buy | 10,000 | $0.42 |
| Jul 2, 2025 | Baird Jennifer Adirector | Option | 2,667 | — |
Source: ICU SEC Form 4 filings, latest Aug 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ICU positions over the last 6 months (SEC Form 13F).
Increased
1
New positions
7
Reduced
9
Sold out
17
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | New Position | 56K | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 29K | May 15, 2026 |
| JANE STREET GROUP, LLC | Reduced | 28K | May 12, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 23K | Mar 25, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 14K | May 8, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | Reduced | 2K | May 8, 2026 |
| TOWER RESEARCH CAPITAL LLC (TRC) | New Position | 1K | May 15, 2026 |
| BLACKROCK, INC. | Reduced | 913 | May 13, 2026 |
| UBS GROUP AG | Reduced | 793 | May 5, 2026 |
| ADVISOR GROUP HOLDINGS, INC. | Reduced | 230 | May 15, 2026 |
| NEWEDGE ADVISORS, LLC | Reduced | 176 | Jun 3, 2026 |
| VANGUARD GLOBAL ADVISERS, LLC | New Position | 165 | May 8, 2026 |
| TD WATERHOUSE CANADA INC. | Reduced | 22 | May 12, 2026 |
| MORGAN STANLEY | Reduced | 20 | May 15, 2026 |
| SBI SECURITIES CO., LTD. | New Position | 14 | Apr 28, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.