ICU — SeaStar Medical Holding Corp
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-03-18.
Performance
Technicals
Others in Healthcare
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-18 | Messinger Michael Chief Financial Officer | Open-market purchase | 750 | 3.27 | 2.5K |
| 2026-07-01 | Chung Kevin Chief Medical Officer | Grant or award | 7.2K | 0.00 | 0 |
| 2026-07-01 | Baird Jennifer A Director | Grant or award | 4.0K | 0.00 | 0 |
| 2026-07-01 | Schlorff Eric Chief Executive Officer | Grant or award | 10.3K | 0.00 | 0 |
| 2026-07-01 | Van Heel Kenneth Director | Grant or award | 4.0K | 0.00 | 0 |
| 2026-07-01 | Vincent Bernadette N Director | Grant or award | 4.0K | 0.00 | 0 |
| 2026-07-01 | Neuman John Director | Grant or award | 4.0K | 0.00 | 0 |
| 2026-02-06 | Neuman John Director | Grant or award | 3.0K | 0.00 | 0 |
| 2026-02-06 | Vincent Bernadette N Director | Grant or award | 3.0K | 0.00 | 0 |
| 2026-02-06 | Van Heel Kenneth Director | Grant or award | 3.0K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 207.0K | 55.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | 107.1K | 28.8K |
| JANE STREET GROUP, LLC | 104.0K | 28.0K |
| VANGUARD FIDUCIARY TRUST CO | 50.9K | 13.7K |
| PNC FINANCIAL SERVICES GROUP, INC. | 6.5K | 1.7K |
| Tower Research Capital LLC (TRC) | 5.2K | 1.4K |
| BlackRock, Inc. | 3.4K | 913 |
| UBS Group AG | 3.0K | 793 |
| OSAIC HOLDINGS, INC. | 854 | 230 |
| Vanguard Global Advisers, LLC | 614 | 165 |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-19 | 2026-08-18 | on EDGAR ↗ |
| 10-Q | 2026-08-12 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-12 | 2026-08-12 | on EDGAR ↗ |
| S-8 | 2026-07-21 | — | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-01 | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-01 | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-01 | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-01 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Seastar Medical Holding Corp (ICU) filed form 8-K · 2026-08-12 · SEC EDGAR
Ask the AI about ICU
The assistant reads every block on this page — price history, filings, insider transactions, institutional positions, short volume, macro and the measured base rates — and says what it implies, quoting the number behind each claim and declaring what it does not have.
Everything on this page is live in the terminal.
Charts, filings, insider flow and the AI — open without an account.
Free plan for good. Pro is $69.99/mo, or $4.99 for a 7-day trial. See the plans →