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 |
|---|---|---|---|
| 8-K |
Current report
Other events
|
Nov 3, 2026 | Oct 30, 2026 |
| S-3 | Shelf registration | Oct 30, 2026 | — |
| D | Filing | Oct 8, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Oct 5, 2026 | Oct 5, 2026 |
| 10-Q | Quarterly report | Aug 12, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2026 | Aug 12, 2026 |
| S-8 | Employee stock plan registration | Jul 21, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2026 | Jun 25, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Jun 23, 2026 | Aug 13, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 17, 2026 | Jun 17, 2026 |
| 424B3 | Prospectus | May 13, 2026 | — |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 13, 2026 | May 13, 2026 |
| EFFECT | Filing | May 11, 2026 | — |
| CORRESP | Letter to the SEC | May 8, 2026 | — |
| S-1/A | Amended registration statement | May 7, 2026 | — |
| EFFECT | Filing | May 5, 2026 | — |
| EFFECT | Filing | May 5, 2026 | — |
| EFFECT | Filing | May 5, 2026 | — |
| UPLOAD | Letter from the SEC | May 5, 2026 | — |
| DEF 14A | Proxy statement | Apr 29, 2026 | Jun 17, 2026 |
| POS AM | Post-effective amendment no. 5 to form s-1 | Apr 28, 2026 | — |
| POS AM | Post-effective amendment no.1 to form s-1 | Apr 28, 2026 | — |
| POS AM | Post-effective amendment no. 1 to form s-1 | Apr 28, 2026 | — |
| S-1 | Registration statement | Apr 28, 2026 | — |
| 8-K |
Current report
Other events
|
Apr 28, 2026 | Apr 27, 2026 |
| 10-K | Annual report | Mar 25, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 25, 2026 | Mar 25, 2026 |
| 8-K |
Current report
Other events
|
Jan 20, 2026 | Jan 20, 2026 |
| 8-K/A |
Amended current report
Change to shareholder rights, Other events
|
Dec 23, 2025 | Dec 18, 2025 |
| 8-K |
Current report
Change to shareholder rights, Shareholder vote results
|
Dec 18, 2025 | Dec 18, 2025 |
| 424B5 | Prospectus supplement | Nov 20, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2025 | Nov 12, 2025 |
| DEF 14A | Proxy statement | Nov 14, 2025 | Dec 18, 2025 |
| 10-Q | Quarterly report | Nov 13, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2025 | Nov 13, 2025 |
| PRE 14A | Preliminary proxy statement | Nov 4, 2025 | Nov 4, 2025 |
| 424B5 | Prospectus supplement | Oct 14, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Sep 29, 2025 | Sep 23, 2025 |
| 8-K |
Current report
Other events
|
Sep 24, 2025 | Sep 24, 2025 |
| 8-K |
Current report
Officer or director change
|
Aug 19, 2025 | Aug 13, 2025 |
| 8-K/A |
Amended current report
Results of operations
|
Aug 14, 2025 | Aug 13, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Acquisition or sale of assets
|
Aug 13, 2025 | Aug 13, 2025 |
| EFFECT | Filing | Aug 12, 2025 | — |
| CORRESP | Letter to the SEC | Aug 11, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 11, 2025 | — |
| S-1 | Registration statement | Aug 8, 2025 | — |
| 8-K |
Current report
Other events
|
Aug 8, 2025 | Aug 8, 2025 |
| 424B5 | Prospectus supplement | Aug 8, 2025 | — |
| S-8 | Employee stock plan registration | Aug 8, 2025 | — |
| 8-K/A |
Amended current report
Listing notice
|
Aug 6, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Listing notice
|
Aug 6, 2025 | Jun 26, 2023 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Aug 1, 2025 | Aug 1, 2025 |
| 424B5 | Prospectus supplement | Aug 1, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jul 16, 2025 | Jul 14, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Jul 14, 2025 | Jul 10, 2025 |
| 424B5 | Prospectus supplement | Jul 11, 2025 | — |
| 424B5 | Prospectus supplement | Jul 10, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jul 8, 2025 | Jul 3, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jul 2, 2025 | Jul 1, 2025 |
| 424B4 | Prospectus | Jun 23, 2025 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure, Other events
|
Jun 23, 2025 | Jun 17, 2025 |
| EFFECT | Filing | Jun 20, 2025 | — |
| S-1/A | Amended registration statement | Jun 20, 2025 | — |
| CORRESP | Letter to the SEC | Jun 17, 2025 | — |
| S-1 | Registration statement | Jun 16, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jun 11, 2025 | Jun 6, 2025 |
| UPLOAD | Letter from the SEC | May 30, 2025 | — |
| 424B3 | Prospectus | May 29, 2025 | — |
| EFFECT | Filing | May 27, 2025 | — |
| DRS | Filing | May 27, 2025 | — |
| CORRESP | Letter to the SEC | May 22, 2025 | — |
| UPLOAD | Letter from the SEC | May 22, 2025 | — |
| S-1 | Registration statement | May 19, 2025 | — |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 14, 2025 | May 14, 2025 |
| DEF 14A | Proxy statement | May 6, 2025 | Jul 3, 2025 |
| DEFA14A | Additional proxy material | May 6, 2025 | — |
| EFFECT | Filing | Apr 29, 2025 | — |
| PRE 14A | Preliminary proxy statement | Apr 25, 2025 | Apr 25, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Apr 25, 2025 | Apr 25, 2025 |
| CORRESP | Letter to the SEC | Apr 25, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 25, 2025 | — |
| 10-K/A | Amended annual report | Apr 23, 2025 | Dec 31, 2024 |
| S-3 | Shelf registration | Apr 22, 2025 | — |
| S-8 | Employee stock plan registration | Apr 22, 2025 | — |
| 424B5 | Prospectus supplement | Apr 2, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Mar 28, 2025 | Mar 28, 2025 |
| 10-K | Annual report | Mar 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 27, 2025 | Mar 27, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Mar 21, 2025 | Mar 20, 2025 |
| 8-K |
Current report
Other events
|
Mar 13, 2025 | Mar 11, 2025 |
| DEFR14A | Proxy statement | Mar 4, 2025 | — |
| DEF 14A | Proxy statement | Feb 28, 2025 | Mar 20, 2025 |
| PRE 14A | Preliminary proxy statement | Feb 18, 2025 | Feb 18, 2025 |
| 424B5 | Prospectus supplement | Feb 3, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Feb 3, 2025 | Jan 31, 2025 |
| 8-K |
Current report
Listing notice
|
Jan 31, 2025 | Jan 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 13, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Listing notice
|
Dec 26, 2024 | Dec 24, 2024 |
| 8-K |
Current report
Other events
|
Dec 19, 2024 | Dec 13, 2024 |
| UPLOAD | Letter from the SEC | Dec 3, 2024 | — |
| CORRESP | Letter to the SEC | Nov 27, 2024 | — |
| 8-K |
Current report
Shareholder vote results
|
Nov 26, 2024 | Nov 26, 2024 |
| UPLOAD | Letter from the SEC | Nov 26, 2024 | — |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2024 | Nov 13, 2024 |
| DEF 14A | Proxy statement | Nov 4, 2024 | Nov 26, 2024 |
| PRE 14A | Preliminary proxy statement | Oct 24, 2024 | Nov 26, 2024 |
| 8-K |
Current report
Other events
|
Oct 22, 2024 | Oct 20, 2024 |
| EFFECT | Filing | Aug 27, 2024 | — |
| EFFECT | Filing | Aug 27, 2024 | — |
| CORRESP | Letter to the SEC | Aug 23, 2024 | — |
| CORRESP | Letter to the SEC | Aug 23, 2024 | — |
| 8-K |
Current report
Material agreement
|
Aug 21, 2024 | Aug 20, 2024 |
| 424B5 | Prospectus supplement | Aug 21, 2024 | — |
| S-3/A | Amendment no. 1 to form s-3 | Aug 16, 2024 | — |
| S-3/A | Amendment no. 1 to form s-3 | Aug 16, 2024 | — |
| 8-K | Current report | Aug 13, 2024 | Aug 13, 2024 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| UPLOAD | Letter from the SEC | Aug 7, 2024 | — |
| S-3 | Shelf registration | Aug 2, 2024 | — |
| D | Filing | Jul 26, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Jul 11, 2024 | Jul 10, 2024 |
| 424B5 | Prospectus supplement | Jul 11, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 10, 2024 | — |
| 8-K |
Current report
Other events
|
Jul 9, 2024 | Jul 5, 2024 |
| 8-K |
Current report
Listing notice
|
Jul 5, 2024 | Jul 3, 2024 |
| 10-K/A | Amended annual report | Jul 3, 2024 | Dec 31, 2023 |
| S-3 | Shelf registration | Jul 3, 2024 | — |
| 8-K |
Current report
Material agreement
|
Jul 2, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Listing notice
|
Jun 28, 2024 | Jun 24, 2024 |
| 8-K |
Current report
Other events
|
Jun 11, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Jun 10, 2024 | Jun 5, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jun 7, 2024 | Jun 7, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 4, 2024 | Jun 4, 2024 |
| 10-Q | Quarterly report | May 14, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 14, 2024 | May 14, 2024 |
| ARS | Annual report to shareholders | May 9, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | May 3, 2024 | May 3, 2024 |
| 10-K/A | Amended annual report | Apr 26, 2024 | Dec 31, 2023 |
| PRE 14A | Preliminary proxy statement | Apr 23, 2024 | Apr 22, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Apr 18, 2024 | Apr 12, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2024 | Apr 17, 2024 |
| 10-K | Annual report | Apr 16, 2024 | Dec 31, 2023 |
| NT 10-K | Filing | Apr 1, 2024 | Apr 1, 2024 |
| 8-K/A |
Amended current report
Other events
|
Mar 27, 2024 | Mar 27, 2024 |
| 8-K |
Current report
Restatement
|
Mar 27, 2024 | Mar 21, 2024 |
| 8-K |
Current report
Other events
|
Mar 27, 2024 | Mar 27, 2024 |
| 8-K |
Current report
Other events
|
Mar 8, 2024 | Mar 6, 2024 |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 424B3 | Prospectus | Mar 5, 2024 | — |
| 8-K |
Current report
Other events
|
Feb 22, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Agreement ended
|
Feb 16, 2024 | Feb 15, 2024 |
| EFFECT | Filing | Feb 14, 2024 | — |
| CORRESP | Letter to the SEC | Feb 12, 2024 | — |
| S-8 | Employee stock plan registration | Feb 9, 2024 | — |
| S-3/A | Filing | Feb 9, 2024 | — |
| CORRESP | Letter to the SEC | Feb 9, 2024 | — |
| 8-K |
Current report
Listing notice
|
Feb 9, 2024 | Feb 6, 2024 |
| UPLOAD | Letter from the SEC | Feb 2, 2024 | — |
| 424B5 | Prospectus supplement | Jan 30, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Jan 30, 2024 | Jan 26, 2024 |
| 8-K |
Current report
Other events
|
Jan 24, 2024 | Jan 24, 2024 |
| S-3 | Shelf registration | Jan 24, 2024 | — |
| 8-K |
Current report
Other events
|
Jan 12, 2024 | Jan 12, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 11, 2024 | Jan 10, 2024 |
| 8-K |
Current report
Listing notice
|
Dec 29, 2023 | Dec 27, 2023 |
| EFFECT | Filing | Dec 22, 2023 | — |
| CORRESP | Letter to the SEC | Dec 20, 2023 | — |
| 8-K |
Current report
Other events
|
Dec 20, 2023 | Dec 20, 2023 |
| UPLOAD | Letter from the SEC | Dec 19, 2023 | — |
| 8-K |
Current report
Listing notice
|
Dec 13, 2023 | Dec 13, 2023 |
| EFFECT | Filing | Dec 11, 2023 | — |
| S-3/A | Filing | Dec 11, 2023 | — |
| 8-K |
Current report
Other events
|
Dec 11, 2023 | Dec 11, 2023 |
| S-3 | Shelf registration | Dec 8, 2023 | — |
| S-3/A | Filing | Dec 7, 2023 | — |
| CORRESP | Letter to the SEC | Dec 7, 2023 | — |
| UPLOAD | Letter from the SEC | Dec 6, 2023 | — |
| S-3 | Shelf registration | Dec 1, 2023 | — |
| 8-K |
Current report
Auditor change
|
Nov 29, 2023 | Nov 28, 2023 |
| 8-K |
Current report
Other events
|
Nov 27, 2023 | Nov 27, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 22, 2023 | Nov 21, 2023 |
| 10-Q | Quarterly report | Nov 14, 2023 | Sep 30, 2023 |
Showing 200 filings, the most recent 200. 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.