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SeaStar Medical Holding (ICU) stock: insider trades, news & valuation

Health Care · Quiet
Close · Oct 9, 2026 $3.61 +3.4% on the day -40.2% over 12 months 52-week range $2.21 – $6.37

Share price and insider trades

ICU closeInsider buyInsider sale
2468NovDecJan 2026FebMarAprMayJunJulAugSepOctBought $1,008 on 2025-12-19 · Jennifer A BairdBought $2,452 on 2026-08-18 · Michael MessingerBought $5,075 on 2025-12-09 · Michael Messinger
Bought, 12 months$0
Sold, 12 months$0
Insiders buying0
Insiders selling0

SeaStar Medical Holding insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 0 sold $0 of ICU stock on the open market.

ICU insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q4 2025: $6K bought (2 trades)$6KQ4 2025Q1 2026Q2 2026Q3 2026: $2K bought (1 trades)$2KQ3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026$2K1—0
Q2 2026—0—0
Q1 2026—0—0
Q4 2025$6K2—0

Valuation, profit and volume

P/E (trailing)n/aSector median 24.7
Market value$19.0MBiotechnology
Profit margin0.0%Revenue growth +82.0%
Volume vs. 50-day7.7×Last 5 sessions
Insiders' paper profit+$62KOn all tracked purchases +722.6%

Summary

No open-market purchases or sales by SeaStar Medical Holding Corp insiders were reported in the past 12 months.

ICU stock news and SEC filings

Recent 8-K filings and headlines. Tone is scored from the headline wording; “Policy” marks regulatory, trade or government topics.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Aug 19SEC Michael MessingerCFO Buy 7502,500 held (+43%) $3.27 $2K +10.4% —
Dec 22SEC Jennifer A BairdDirector Buy 4,20036,200 held (+13%) $0.24 $1K +1404.2% —
Dec 11SEC Michael MessingerCFO Buy 14,50017,500 held (+483%) $0.35 $5K +931.4% —

Insiders at SeaStar Medical Holding Corp

InsiderBoughtSoldLast filingScore
Michael MessingerCFO $8K — Aug 19, 2026 —
Jennifer A BairdDirector $1K — Dec 22, 2025 —

Insider activity at other Health Care companies

Same sector, ranked by insider buying in the last 90 days.

  • SLBTSL Science Holding Ltd$10329.90B bought
  • KODKodiak Sciences Inc.$157M bought
  • ADRXADARx Pharmaceuticals, Inc.$87.7M bought
  • ATTOAttovia Therapeutics, Inc.$72.9M bought
  • MPLTMapLight Therapeutics, Inc.$65.5M bought
  • AVRAnteris Technologies Global Corp.$40.4M bought

ICU stock: common questions

Are SeaStar Medical Holding Corp insiders buying ICU stock?

In the past 12 months, 0 insiders reported open-market purchases of ICU worth $0. The latest was CFO Michael Messinger bought $2K of ICU at $3.27 — raises the stake by 43%.

Are SeaStar Medical Holding Corp insiders selling ICU stock?

0 insiders reported sales worth $0 over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is ICU's 52-week range?

Over the past year ICU has traded between $2.21 and $6.37. It last closed at $3.61 on Oct 9, 2026.