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, Q2 2026
Institutional positions in SeaStar Medical Holding Corp as of Jun 30, 2026. 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
- 15
- +5 vs. Q1 2026
- Shares held
- 1.14M
- +175.6K (+18.2%) vs. Q1 2026
- Total value
- $15.4K
- −$917.2K (−98.4%) vs. Q1 2026
- New holders
- 5
- 2 more added
- Sold out
- 0
- 1 more reduced
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding SeaStar Medical Holding Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| UBS Group AG | 801 | $14 | 0.00% | +84+11.7% | Added |
| Wolverine Asset Management LLC | 11,081 | $192 | 0.00% | −1,200−9.8% | Reduced |
| StoneX Group Inc. | 11,086 | $208 | 0.00% | +11,086 | New |
| Two Sigma Securities, LLC | 24,322 | $421 | 0.00% | +24,322 | New |
| Susquehanna International Group, LLP | 36,179 | $539 | 0.00% | +36,179 | New |
| Cruiser Capital Advisors, LLC | 32,473 | $562 | 0.00% | 00.0% | Unchanged |
| Equitec Proprietary Markets, LLC | 35,700 | $618 | 0.00% | 00.0% | Unchanged |
| Tenor Capital Management Co., L.P. | 40,000 | $692 | 0.00% | 00.0% | Unchanged |
| Clear Street Group Inc. | 46,690 | $808 | 0.00% | +200+0.4% | Added |
| Virtu Financial LLC | 40,316 | $1.00K | 0.00% | +40,316 | New |
| SkyView Investment Advisors, LLC | 64,658 | $1.00K | 0.00% | +64,658 | New |
| LMR Partners LLP | 125,000 | $2.16K | 0.00% | 00.0% | Unchanged |
| Linden Advisors LP | 218,073 | $3.51K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 211,381 | $3.66K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 245,200 | – | – | 00.0% | Unchanged |