SeaStar Medical Holding Corp SEC filings ICU
SeaStar Medical Holding Corp has 543 filings in SEC EDGAR's recent list, going back to Dec 1, 2020. Its latest annual report, Form 10-K, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Aug 19, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 11, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 11, 2025 | Dec 9, 2025 |
| 3 | Initial insider ownership | Dec 8, 2025 | Nov 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 7, 2025 | — |
| 3 | Initial insider ownership | Sep 9, 2025 | Aug 26, 2025 |
| 4 | Insider transaction | Aug 28, 2025 | Aug 26, 2025 |
| 4 | Insider transaction | Aug 25, 2025 | Aug 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| 4 | Insider transaction | Jul 16, 2025 | Jul 10, 2025 |
| 4 | Insider transaction | Jul 16, 2025 | Jul 10, 2025 |
| 4 | Insider transaction | Jul 16, 2025 | Jul 10, 2025 |
| 4 | Insider transaction | Jul 16, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 4, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 27, 2025 | — |
| 4 | Insider transaction | Jun 27, 2025 | Jun 24, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 20, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 20, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Jun 14, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| 3 | Initial insider ownership | Dec 3, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Dec 3, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Apr 18, 2024 |
| 4/A | Primary document | Sep 9, 2024 | Apr 12, 2024 |
| 3 | Initial insider ownership | Jun 14, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 3 | Initial insider ownership | Jan 22, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Nov 29, 2023 | Nov 29, 2023 |
| 4 | Insider transaction | Nov 29, 2023 | Nov 29, 2023 |
| 4 | Insider transaction | Nov 29, 2023 | Sep 22, 2023 |
| 4/A | Filing | Nov 28, 2023 | Aug 31, 2023 |
| 4/A | Filing | Nov 28, 2023 | Aug 31, 2023 |
| 4/A | Filing | Nov 28, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Nov 27, 2023 | Nov 22, 2023 |
| 4 | Insider transaction | Sep 19, 2023 | Sep 15, 2023 |
| 4 | Insider transaction | Sep 19, 2023 | Sep 15, 2023 |
| 4 | Insider transaction | Sep 19, 2023 | Sep 15, 2023 |
| 4 | Insider transaction | Sep 12, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Sep 12, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Sep 12, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Aug 17, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 17, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 17, 2023 | Aug 15, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 10, 2023 | — |
| 4 | Insider transaction | Jun 27, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 9, 2023 |
| 4 | Insider transaction | Jun 1, 2023 | May 30, 2023 |
| 4 | Insider transaction | May 30, 2023 | May 23, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Apr 7, 2023 | Apr 5, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 10, 2022 | — |
| SC 13D | Ownership over 5% (active) | Nov 7, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Nov 4, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Nov 4, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Nov 3, 2022 | — |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 3 | Initial insider ownership | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| 4 | Insider transaction | Nov 1, 2022 | Oct 28, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 2, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jun 10, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Apr 1, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Mar 8, 2021 | — |
| 3 | Initial insider ownership | Jan 26, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 26, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 25, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 25, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 25, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 25, 2021 | Jan 25, 2021 |
| 3 | Initial insider ownership | Jan 25, 2021 | Jan 25, 2021 |
Showing 136 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Surgical & Medical Instruments & Apparatus (SIC 3841)
- Listed as
- ICU (Nasdaq), ICUCW (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Denver, CO
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1831868
- Former names
- LMF Acquisition Opportunities Inc (until Oct 27, 2022)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.