SeaStar Medical Holding Corp
ICUCW- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001831868
In the last 90 days, SeaStar Medical Holding Corp insiders filed 1 open-market purchase and 0 sales; 15 institutions reported holding it in 13F filings for Q2 2026, worth $15.4K in total; no superinvestor holds it.
Other share classesICU
13F holders, Q1 2023
Institutional positions in SeaStar Medical Holding Corp as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 31
- 0 vs. Q4 2022
- Shares held
- 4.30M
- −143.3K (−3.2%) vs. Q4 2022
- Total value
- $315.0K
- −$23.0K (−6.8%) vs. Q4 2022
- New holders
- 3
- 3 more added
- Sold out
- 3
- 6 more reduced
Compare with Q4 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ICUCW on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 15 | $15.4K |
| Q1 2026 | 10 | $932.6K |
| Q4 2025 | 14 | $10.3K |
| Q3 2025 | 15 | $29.8K |
| Q2 2025 | 13 | $22.2K |
| Q1 2025 | 13 | $40.3K |
| Q4 2024 | 13 | $25.0K |
| Q3 2024 | 14 | $52.6K |
| Q2 2024 | 16 | $65.0K |
| Q1 2024 | 19 | $201.5K |
| Q4 2023 | 26 | $69.9K |
| Q3 2023 | 30 | $50.6K |
| Q2 2023 | 29 | $140.2K |
| Q1 2023 | 31 | $315.0K |
| Q4 2022 | 31 | $338.1K |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2023
Shares, value and share of portfolio for each institution holding SeaStar Medical Holding Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| EHP Funds Inc. | 482,887 | $38.1K | 0.01% | 00.0% | Unchanged |
| Warberg Asset Management LLC | 366,011 | $31.0K | 0.01% | +14,800+4.2% | Added |
| Ayrton Capital LLC | 250,000 | $21.2K | 0.08% | +250,000 | New |
| Atw Spac Management LLC | 245,200 | $19.3K | 0.01% | 00.0% | Unchanged |
| Radcliffe Capital Management, L.P. | 243,106 | $19.2K | 0.00% | 00.0% | Unchanged |
| Linden Advisors LP | 218,073 | $17.2K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 188,790 | $16.0K | 0.00% | 00.0% | Unchanged |
| Shaolin Capital Management LLC | 190,080 | $16.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 188,300 | $16.0K | 0.00% | −20,100−9.6% | Reduced |
| Yakira Capital Management, Inc. | 200,157 | $15.8K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 211,381 | $15.6K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 125,600 | $10.7K | 0.00% | −13,400−9.6% | Reduced |
| Rivernorth Capital Management, LLC | 150,000 | $10.5K | 0.00% | 00.0% | Unchanged |
| Context Capital Management, LLC | 124,107 | $10.0K | 0.00% | −20,000−13.9% | Reduced |
| Polar Asset Management Partners Inc. | 123,906 | $9.76K | 0.00% | −118,694−48.9% | Reduced |
| Clear Street LLC | 92,072 | $6.78K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 84,783 | $6.00K | 0.00% | 00.0% | Unchanged |
| Equitec Proprietary Markets, LLC | 80,700 | $5.94K | 0.01% | −8,350−9.4% | Reduced |
| SkyView Investment Advisors, LLC | 64,658 | $5.00K | 0.00% | 00.0% | Unchanged |
| CVI Holdings, LLC | 58,572 | $4.97K | 0.00% | −236,060−80.1% | Reduced |
| Wolverine Asset Management LLC | 50,149 | $4.25K | 0.00% | +13,086+35.3% | Added |
| Tenor Capital Management Co., L.P. | 40,000 | $3.39K | 0.00% | 00.0% | Unchanged |
| Elequin Capital LP | 40,000 | $3.39K | 0.00% | 00.0% | Unchanged |
| Landscape Capital Management, L.L.C. | 30,872 | $2.62K | 0.00% | 00.0% | Unchanged |
| Cruiser Capital Advisors, LLC | 32,473 | $2.56K | 0.00% | 00.0% | Unchanged |
| Ionic Capital Management LLC | 25,000 | $1.97K | 0.00% | +25,000 | New |
| Two Sigma Securities, LLC | 12,689 | $934 | 0.00% | +12,689 | New |
| Skaana Management L.P. | 10,000 | $736 | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 5,079 | $376 | 0.00% | +4,296+548.7% | Added |
| Boothbay Fund Management, LLC | 245,200 | – | – | 00.0% | Unchanged |
| LMR Partners LLP | 125,000 | – | – | 00.0% | Unchanged |
| CNH Partners LLC | 0 | $0 | 0.00% | −18,075−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −14,215−100.0% | Sold out |
| Flow Traders U.S. LLC | 0 | $0 | 0.00% | −14,252−100.0% | Sold out |