SeaStar Medical Holding Corp
ICU- 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; 18 institutions reported holding it in 13F filings for Q2 2026, worth $582.1K in total; no superinvestor holds it.
Other share classesICUCW
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
- 18
- +2 vs. Q1 2026
- Shares held
- 158.6K
- +27.0K (+20.6%) vs. Q1 2026
- Total value
- $582.1K
- +$92.7K (+18.9%) vs. Q1 2026
- New holders
- 3
- 3 more added
- Sold out
- 1
- 4 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ICU 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 | 18 | $582.1K |
| Q1 2026 | 17 | $489.4K |
| Q4 2025 | 21 | $191.1K |
| Q3 2025 | 28 | $624.3K |
| Q2 2025 | 26 | $204.7K |
| Q1 2025 | 26 | $1.50M |
| Q4 2024 | 20 | $351.3K |
| Q3 2024 | 15 | $584.3K |
| Q2 2024 | 17 | $1.16M |
| Q1 2024 | 29 | $4.90M |
| Q4 2023 | 23 | $397.6K |
| Q3 2023 | 14 | $68.3K |
| Q2 2023 | 13 | $289.6K |
| Q1 2023 | 11 | $2.31M |
| Q4 2022 | 10 | $4.82M |
| Q3 2022 | 1 | $401.0K |
| 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 |
|---|---|---|---|---|---|
| Geode Capital Management, LLC | 49,593 | $182.0K | 0.00% | −6,049−10.9% | Reduced |
| Vanguard Capital Management LLC | 33,091 | $121.4K | 0.00% | +4,300+14.9% | Added |
| UBS Group AG | 31,398 | $115.2K | 0.00% | +30,605+3,859.4% | Added |
| Vanguard Fiduciary Trust Co | 13,692 | $50.3K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 12,634 | $46.4K | 0.00% | −15,326−54.8% | Reduced |
| Northern Trust Corp | 10,402 | $38.2K | 0.00% | +10,402 | New |
| The PNC Financial Services Group, Inc. | 4,943 | $18.1K | 0.00% | +3,195+182.8% | Added |
| Tower Research Capital LLC (TRC) | 1,356 | $4.98K | 0.00% | −39−2.8% | Reduced |
| BlackRock, Inc. | 913 | $3.35K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 195 | $714 | 0.00% | −35−15.2% | Reduced |
| GWM Advisors LLC | 176 | $647 | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 165 | $606 | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 22 | $106 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 14 | $51 | 0.00% | 00.0% | Unchanged |
| SOA Wealth Advisors, LLC. | 6 | $22 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 4 | $15 | 0.00% | +4 | New |
| HighMark Wealth Management LLC | 2 | $7 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 2 | $7 | 0.00% | +2 | New |
| Morgan Stanley | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |