ICU

SeaStar Medical Holding Corp

Company with tickers: ICU, ICUCW

CIK

1831868

CUSIP

81256L302

Shares Outstanding

3,997,002

13F Activity (30d)

11 filings 11 filers

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start	ATS Volume	Non-ATS OTC Volume	Total Off-Exchange	% of FINRA Weekly Volume
2026-05-04	26,321	220,540	246,861	59.9%
2026-04-27	20,143	172,675	192,818	71.1%
2026-04-20	24,551	211,329	235,880	61.6%
2026-04-13	45,947	265,224	311,171	58.8%
2026-04-06	54,628	416,354	470,982	53.5%
2026-03-30	133,618	1,565,504	1,699,122	67.6%
2026-03-23	54,460	577,218	631,678	56.9%
2026-03-16	11,821	182,016	193,837	49.5%

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