Michael Messinger insider trades: SeaStar Medical Holding (ICU) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michael reports to the SEC
Open-market buys and sales
4 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | ICU | ↑ Buy | 750 | $3.27 | $2K | Direct | Aug 19, 2026 (1d) |
| Dec 9, 2025 | ICU | ↑ Buy | 14,500 | $0.35 | $5K | Direct | Dec 11, 2025 (2d) |
| Dec 13, 2019 | CFRX | ↑ Buy | 5,000 | $0.37 | $2K | Direct | Dec 16, 2019 (3d) |
| Jul 25, 2017 | CFRX | ↑ Buy | 800 | $1.24 | $992 | Direct | Jul 26, 2017 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ICU insiders
Open-market trades in the last 12 months
About Michael Messinger's insider trades
Michael Messinger is Chief Financial Officer at SeaStar Medical Holding (ICU). Since Jul 25, 2017, Michael has reported 4 open-market purchases worth $10K and no sales on SEC Form 4. In the last 12 months: 2 buys ($8K).
Their filings also include grants and awards (5 filings), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ICU insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.