31 institutions reported holding $1.4M of SEASTAR MEDICAL HOLDING CORP (ICUCW) in SEC 13F filings for 2026-03-31. Largest institutional holders: BOOTHBAY FUND MANAGEMENT, LLC ($912,144), GEODE CAPITAL MANAGEMENT, LLC ($206,991), VANGUARD CAPITAL MANAGEMENT LLC ($107,103), JANE STREET GROUP, LLC ($104,011), VANGUARD FIDUCIARY TRUST CO ($50,934). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BOOTHBAY FUND MANAGEMENT, LLC | $912,144 | 245,200 | Hold |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $206,991 | 55,642 | New |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $107,103 | 28,791 | New |
| 4 | JANE STREET GROUP, LLC | $104,011 | 27,960 | New |
| 5 | VANGUARD FIDUCIARY TRUST CO | $50,934 | 13,692 | New |
| 6 | PNC Financial Services Group, Inc. | $6,503 | 1,748 | New |
| 7 | GOLDMAN SACHS GROUP INC | $6,088 | 211,381 | Hold |
| 8 | Linden Advisors LP | $5,953 | 218,073 | Hold |
| 9 | Tower Research Capital LLC (TRC) | $5,189 | 1,395 | New |
| 10 | LMR Partners LLP | $3,600 | 125,000 | Hold |
| 11 | BlackRock, Inc. | $3,396 | 913 | New |
| 12 | UBS Group AG | $2,971 | 1,510 | New |
| 13 | Clear Street Group Inc. | $1,339 | 46,490 | Trimmed |
| 14 | TENOR CAPITAL MANAGEMENT Co., L.P. | $1,152 | 40,000 | Hold |
| 15 | EQUITEC PROPRIETARY MARKETS, LLC | $1,028 | 35,700 | Hold |
| 16 | Cruiser Capital Advisors, LLC | $935 | 32,473 | Hold |
| 17 | OSAIC HOLDINGS, INC. | $854 | 230 | New |
| 18 | MILLENNIUM MANAGEMENT LLC | $648 | 22,500 | Hold |
| 19 | Vanguard Global Advisers, LLC | $614 | 165 | New |
| 20 | WOLVERINE ASSET MANAGEMENT LLC | $354 | 12,281 | Hold |
| 21 | TD Waterhouse Canada Inc. | $78 | 22 | New |
| 22 | MORGAN STANLEY | $74 | 20 | New |
| 23 | SBI Securities Co., Ltd. | $52 | 14 | Trimmed |
| 24 | SOA Wealth Advisors, LLC. | $22 | 6 | Trimmed |
| 25 | HighMark Wealth Management LLC | $7 | 2 | New |
Source: SEC Form 13F filings · as of 2026-03-31