Seastar Medical Holding Corp.
13F holders, Q3 2025 (September 30)28holders +2
4new positions
2sold out
1famous investor
$0.57avg. 13F price*
At the end of Q3 2025, 28 institutions reported holding Seastar Medical Holding Corp. in their 13F filings, up 2 from Q2 2025. 4 opened new positions and 2 sold out. The largest holders were Vanguard Group Inc. ($215K), Geode Capital Management, LLC ($148K) and Millennium Management ($102K). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Seastar Medical Holding Corp.
- CUSIP
- 81256L203
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $133K |
| Exits | 2 | $16K |
All 13F filers, Q2 2025 → Q3 2025: 789,161 shares bought and 177,155 shares sold, net +612,006 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 28 holders
| Vanguard Group Inc. | 0.00% | Add +556.3% | 377,377 | $215K |
| Geode Capital Management, LLC | 0.00% | Add +276.2% | 258,922 | $148K |
| Millennium Management | 0.00% | New | 179,673 | $102K |
| Trinity Financial Advisors LLC | 0.01% | Add +233.3% | 50,000 | $29K |
| XTX Topco Ltd | 0.00% | Reduce -20.4% | 48,558 | $28K |
| Dynamic Advisor Solutions LLC | 0.00% | New | 29,278 | $17K |
| Toronto Dominion Bank | 0.00% | New | 25,000 | $14K |
| Goldman Sachs Group Inc. | 0.00% | Add +52.8% | 18,986 | $11K |
| Raymond James Financial Inc. | 0.00% | Reduce -52.5% | 17,714 | $10K |
| Tyche Wealth Partners LLC | 0.00% | Reduce -53.0% | 17,700 | $10K |
| PNC Financial Services Group, Inc. | 0.00% | Add +12.9% | 17,475 | $10K |
| Northern Trust Corp. | 0.00% | No change | 12,778 | $7K |
| Great Valley Advisor Group, Inc. | 0.00% | No change | 10,000 | $6K |
| UBS Group AG | 0.00% | Reduce -88.6% | 10,391 | $6K |
| BlackRock, Inc. | 0.00% | No change | 9,126 | $5K |
| Whittier Trust Co. | 0.00% | No change | 5,000 | $3K |
| Osaic Holdings, Inc. | 0.00% | No change | 2,296 | $1K |
| NewEdge Advisors, LLC | 0.00% | Add +544.1% | 1,752 | $999 |
| Morgan Stanley | 0.00% | Reduce -5.0% | 800 | $456 |
| Bank of America Corp. | 0.00% | Add +140.4% | 238 | $136 |
| TD Waterhouse Canada Inc. | 0.00% | No change | 216 | $135 |
| SBI Securities Co., Ltd. | 0.00% | Add +59.1% | 148 | $84 |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -97.6% | 132 | $75 |
| Game Plan Financial Advisors, LLC | 0.00% | No change | 100 | $57 |
| SOA Wealth Advisors, LLC. | 0.00% | No change | 55 | $31 |
| HighMark Wealth Management LLC | 0.00% | No change | 20 | $11 |
| Cwm, LLC | 0.00% | New | 1 | $0 |
| Tsfg, LLC | 0.00% | No change | 140 | $0 |
"% of holder's portfolio" is SEASTAR MEDICAL HOLDING CORP's weight in each manager's 13F, not the share of Seastar Medical Holding Corp. the manager owns.