Who owns SeaStar Medical Holding Corp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of ICUCW from SEC Form 13F filings across 9 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 9 institutions disclosed 736,359 shares of SeaStar Medical Holding Corp worth $908,312 — about 18% of shares outstanding; the largest disclosed holder is BOOTHBAY FUND MANAGEMENT, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
9
13F holders
$908,312
value, 2026 filers
18%
of shares outstanding (736,359 sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ICUCW's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BOOTHBAY FUND MANAGEMENT, LLC | 245,200 | $899,884 | 0.0% | 6% | 0.0% |
| 2 | GOLDMAN SACHS GROUP INC | 211,381 | $3,657 | 0.0% | 5.2% | 0.0% |
| 3 | LMR Partners LLP | 125,000 | $2,163 | 0.0% | 3.1% | 0.0% |
| 4 | Clear Street Group Inc. | 46,690 | $808 | 0.0% | 1.1% | +0.4% |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 36,179 | $539 | 0.0% | 0.9% | new |
| 6 | EQUITEC PROPRIETARY MARKETS, LLC | 35,700 | $618 | 0.0% | 0.9% | 0.0% |
| 7 | TWO SIGMA SECURITIES, LLCNEW | 24,322 | $421 | 0.0% | 0.6% | new |
| 8 | StoneX Group Inc.NEW | 11,086 | $208 | 0.0% | 0.3% | new |
| 9 | UBS Group AG | 801 | $14 | 0.0% | 0% | +11.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.