SeaStar Medical Holding Corporation (ICU)
ICU moved a median of -0.43% 30 minutes after news, and -1.30% by the close. How ICU actually reacts to news — the realized, point-in-time move the market made, measured across 772 labeled events over the last three years with zero look-ahead.
ICU’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.14% | 40% | 712 |
| 30-min | -0.43% | 39% | 768 |
| 60-min | -0.48% | 40% | 771 |
| to close | -1.30% | 38% | 771 |
| Middle 50% of ICU reactions | -2.04% to +1.19% |
|---|---|
| Median reaction (30-min) | -0.43% |
| Measured reactions | 772 |
Half of all SeaStar Medical Holding Corporation news events land between -2.04% and +1.19% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when ICU moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ICU's baseline. Nothing else.
Recent ICU events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| SeaStar Medical Chief Medical Officer Kevin Chung, MD, Named 2026 Recipient of the Combat Nephrology Award | Press release | GlobeNewswire | -4.18% | -16.16% | |
| Form D SeaStar Medical Holding | SEC filing · Form D | SEC EDGAR | — | -3.86% | |
| FDA Grants SeaStar Medical Breakthrough Device Designation for its SCD Therapy for the Treatment of Hyperinflammation in Adult Patients with Sepsis or a Septic Condition | Press release | GlobeNewswire | -1.23% | +14.11% | |
| Form 8-K SeaStar Medical Holding For: Oct 05 | SEC filing · Form 8-K | SEC EDGAR | -2.59% | -8.33% | |
| SeaStar Medical Announces Exercise of Warrants for Approximately $3.3 Million Gross Proceeds | Press release | GlobeNewswire | -0.28% | -1.93% | |
| SeaStar Medical Announces Late-Breaking Presentation at ASN Kidney Week 2026 | Press release | GlobeNewswire | — | +26.41% | |
| New ICD-10-PCS Codes are Now Available for the Use of SeaStar Medical’s SCD Therapy for Acute Kidney Injury (AKI) | Press release | GlobeNewswire | +0.00% | -6.01% | |
| SeaStar Medical Announces Chief Medical Officer, Kevin Chung, M.D., to Present at the Pediatric Paracorporeal and Extracorporeal Therapy Symposium (PPETS) 2026 | Press release | GlobeNewswire | -4.36% | +3.49% | |
| SeaStar Medical Congratulates H. David Humes, M.D., on Receiving the University of Michigan 2026 Distinguished University Innovator of the Year for Development of the SCD Therapy | Press release | GlobeNewswire | — | -1.43% | |
| SeaStar Medical to Present at the HC Wainwright 28th Annual Global Investment Conference | Press release | GlobeNewswire | +0.00% | +1.29% | |
| SeaStar Medical Reports Second Quarter 2026 Financial Results and Provides Business Updates | Press release | GlobeNewswire | +0.00% | -0.94% | |
| SeaStar Medical to Report Second Quarter Financial Results on August 12, 2026 | Press release | GlobeNewswire | +1.64% | +0.00% | |
| SeaStar Medical Supports Advances in Critical Care of Pediatric Patients with Acute Kidney Injury (AKI) | Press release | GlobeNewswire | +0.00% | +1.27% | |
| SeaStar Medical Announces New ICD-10-PCS Codes for Its SCD Therapy for Acute Kidney Injury | Press release | GlobeNewswire | +1.20% | +8.10% | |
| SeaStar Medical to Present at Upcoming Investor Summit Conference | Press release | GlobeNewswire | +3.79% | +2.21% | |
| SeaStar Medical Reports First Quarter Financial Results and Provides Business Updates | Press release | GlobeNewswire | -3.01% | -12.86% | |
| SeaStar Medical to Report First Quarter Financial Results on May 13, 2026 | Press release | GlobeNewswire | -1.34% | +9.19% | |
| SeaStar Medical Showcases New Positive Data from the QUELIMMUNE SAVE Registry and an Analysis of the Unique Immunomodulatory Mechanism of the SCD Therapy at AKI & CRRT 2026 | Press release | GlobeNewswire | +1.46% | +32.12% | |
| SeaStar Medical Reports Fourth Quarter and Full Year 2025 Financial Results and Provides Business Updates | Press release | GlobeNewswire | +5.46% | +17.23% | |
| SeaStar Medical to Report Fourth Quarter and Year-End 2025 Financial Results on March 25, 2026 | Press release | GlobeNewswire | -0.85% | -2.99% | |
| Life Sciences Virtual Investor Forum Presentations Now Available for Online Viewing | Press release | GlobeNewswire | -0.38% | -2.29% | |
| Life Sciences Virtual Investor Forum Agenda Announced for March 11th & 12th | Press release | GlobeNewswire | +0.00% | -0.74% | |
| SeaStar Medical to Present at the Life Sciences Investor Forum on March 11th | Press release | GlobeNewswire | -1.61% | +6.45% | |
| SeaStar Medical Announces Completion of FDA Enrollment Requirement for SAVE Surveillance Registry Evaluating QUELIMMUNE Safety for Pediatric AKI | Press release | GlobeNewswire | +1.38% | +1.57% | |
| SeaStar Medical Announces Publication in Pediatric Nephrology of Positive Real-World Experience for QUELIMMUNE™ (SCD-PED) Therapy in Pediatric Acute Kidney Injury (AKI) | Press release | GlobeNewswire | -3.33% | +1.25% | |
| SeaStar Medical to Present at Upcoming Noble Capital Markets Emerging Growth Virtual Equity Conference | Press release | GlobeNewswire | -0.41% | -2.30% | |
| Form 8-K SeaStar Medical Holding For: Jan 20 | SEC filing · Form 8-K | SEC EDGAR | +0.01% | -2.15% | |
| SeaStar Medical Announces 2026 Milestones | Press release | GlobeNewswire | +0.00% | -6.82% | |
| SeaStar Medical to Present at Upcoming Biotech Showcase 2026 Investor Conference | Press release | GlobeNewswire | +5.10% | +1.18% | |
| Form 8-K/A SeaStar Medical Holding For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | -5.46% | +0.96% | |
| SeaStar Medical Announces 1-for-10 Reverse Split | Press release | GlobeNewswire | -5.46% | +0.96% | |
| Form 8-K SeaStar Medical Holding For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | -3.00% | -2.08% | |
| SeaStar Medical Announces FDA Approval of Reduction in Mandatory Enrollment for SAVE Surveillance Registry Evaluating QUELIMMUNE™ Safety for Pediatric AKI | Press release | GlobeNewswire | -3.13% | +6.25% | |
| SeaStar Medical to Present at Upcoming NobleCon21 Investor Conference | Press release | GlobeNewswire | -0.15% | -5.80% | |
| Form 8-K SeaStar Medical Holding For: Nov 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +4.72% | |
| SeaStar Medical Announces Appointment of Michael Messinger as CFO | Press release | GlobeNewswire | -3.64% | -23.34% | |
| Form DEF 14A SeaStar Medical Holding For: Dec 18 | SEC filing · Form DEF | SEC EDGAR | -3.64% | -23.34% | |
| SeaStar Medical to Report Third Quarter Financial Results on November 13, 2025 | Press release | GlobeNewswire | -1.92% | +7.93% | |
| Form PRE 14A SeaStar Medical Holding For: Nov 04 | SEC filing · Form PRE | SEC EDGAR | -2.38% | +14.53% | |
| Form 8-K SeaStar Medical Holding For: Sep 23 | SEC filing · Form 8-K | SEC EDGAR | -2.10% | -5.00% | |
| SeaStar Medical Reports Positive Early Results for QUELIMMUNE Therapy in Pediatric Acute Kidney Injury (AKI) at the 5th International Symposium on Acute Kidney Injury in Children | Press release | GlobeNewswire | -3.43% | -4.76% | |
| Form 8-K SeaStar Medical Holding For: Sep 24 | SEC filing · Form 8-K | SEC EDGAR | -0.83% | -6.49% | |
| SeaStar Medical Reports DSMB Recommendation to Continue the NEUTRALIZE-AKI Pivotal Trial in Adult Acute Kidney Injury | Press release | GlobeNewswire | -0.83% | -6.49% | |
| SeaStar Medical to Present Early SAVE Registry Data of QUELIMMUNE in Pediatric Acute Kidney Injury at the 5th International Symposium on Acute Kidney Injury in Children | Press release | GlobeNewswire | -0.47% | +8.41% | |
| SeaStar Medical to Participate in the HC Wainwright 27th Annual Global Investment Conference | Press release | GlobeNewswire | -1.22% | -3.07% | |
| SeaStar Medical Announces Newly Published QUELIMMUNE Health Economic Study Projecting Significantly Reduced Health Care Costs in the Treatment of Pediatric AKI due to Estimated Shorter Hospital Stays and Increased Survival | Press release | GlobeNewswire | -0.29% | -1.45% | |
| Form 8-K SeaStar Medical Holding For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | -2.43% | +0.04% | |
| Form 8-K/A SeaStar Medical Holding For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | +14.29% | |
| Form 10-Q SeaStar Medical Holding For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.13% | +14.29% | |
| Form 8-K SeaStar Medical Holding For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | +14.29% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ICU section they belong to.
Where else ICU is measured.
ICU earnings → · Analyst actions → · SEC filings →
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Every name we’ve measured, in one place.
How the numbers are made.
How is SeaStar Medical Holding Corporation's median reaction calculated?
Every labeled ICU news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 772 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 39% of ICU's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does ICU's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.