Adagio Medical Holdings, Inc. SEC filings ADGM
Adagio Medical Holdings, Inc. has 234 filings in SEC EDGAR's recent list, going back to Feb 14, 2024. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (bylaw or fiscal year change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Bylaw or fiscal year change
|
Nov 5, 2026 | Nov 4, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Oct 26, 2026 | Oct 23, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Sep 27, 2024 |
| DEF 14A | Proxy statement | Oct 13, 2026 | Oct 23, 2026 |
| 8-K |
Current report
Unregistered share sale
|
Oct 1, 2026 | Sep 25, 2026 |
| PRE 14A | Preliminary proxy statement | Oct 1, 2026 | Oct 1, 2026 |
| 8-K |
Current report
Exit or restructuring costs, Other events
|
Sep 23, 2026 | Sep 23, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 8-K |
Current report
Listing notice
|
Aug 14, 2026 | Aug 13, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 13, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Jun 16, 2026 |
| 10-Q | Quarterly report | Aug 11, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2026 | Aug 11, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 10-K/A | Amended annual report | Jul 13, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 16, 2026 | Jun 16, 2026 |
| 8-K |
Current report
Listing notice
|
Jun 12, 2026 | Jun 12, 2026 |
| 8-K |
Current report
Other events
|
May 21, 2026 | May 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2026 | — |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 12, 2026 | May 12, 2026 |
| ARS | Annual report to shareholders | Apr 30, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2026 | Jun 16, 2026 |
| 8-K |
Current report
Other events
|
Apr 27, 2026 | Apr 26, 2026 |
| 8-K | Current report | Apr 20, 2026 | Apr 20, 2026 |
| 8-K |
Current report
Other events
|
Apr 8, 2026 | Apr 8, 2026 |
| EFFECT | Filing | Apr 3, 2026 | — |
| EFFECT | Filing | Apr 3, 2026 | — |
| S-8 POS | Filing | Apr 2, 2026 | — |
| POS AM | Filing | Apr 2, 2026 | — |
| POS AM | Filing | Apr 2, 2026 | — |
| POS AM | Filing | Apr 1, 2026 | — |
| POS AM | Filing | Apr 1, 2026 | — |
| S-8 | Employee stock plan registration | Mar 30, 2026 | — |
| 424B3 | Prospectus | Mar 27, 2026 | — |
| 424B3 | Prospectus | Mar 27, 2026 | — |
| 10-K | Annual report | Mar 27, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 27, 2026 | Mar 26, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 11, 2026 | — |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 424B3 | Prospectus | Dec 16, 2025 | — |
| 424B3 | Prospectus | Dec 16, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 16, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 15, 2025 | Dec 12, 2025 |
| EFFECT | Filing | Dec 12, 2025 | — |
| 424B3 | Prospectus | Dec 12, 2025 | — |
| 424B3 | Prospectus | Dec 12, 2025 | — |
| 424B3 | Prospectus | Dec 12, 2025 | — |
| 4 | Insider transaction | Dec 11, 2025 | Dec 11, 2025 |
| 3 | Initial insider ownership | Dec 11, 2025 | Dec 11, 2025 |
| DEFA14A | Additional proxy material | Dec 11, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2025 | Dec 11, 2025 |
| CORRESP | Letter to the SEC | Dec 10, 2025 | — |
| S-3 | Shelf registration | Nov 24, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2025 | — |
| 424B3 | Prospectus | Nov 12, 2025 | — |
| 424B3 | Prospectus | Nov 12, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2025 | Nov 12, 2025 |
| ARS | Annual report to shareholders | Nov 4, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Nov 4, 2025 | Dec 15, 2025 |
| D | Filing | Oct 29, 2025 | — |
| 424B3 | Prospectus | Oct 24, 2025 | — |
| 424B3 | Prospectus | Oct 24, 2025 | — |
| 8-K | Current report | Oct 24, 2025 | Oct 23, 2025 |
| 4 | Insider transaction | Oct 22, 2025 | Oct 20, 2025 |
| 424B3 | Prospectus | Oct 20, 2025 | — |
| 424B3 | Prospectus | Oct 20, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 20, 2025 | Oct 20, 2025 |
| 424B3 | Prospectus | Oct 15, 2025 | — |
| 424B3 | Prospectus | Oct 15, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Oct 15, 2025 | Oct 14, 2025 |
| 424B3 | Prospectus | Oct 10, 2025 | — |
| 424B3 | Prospectus | Oct 10, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 10, 2025 | Oct 10, 2025 |
| 424B3 | Prospectus | Oct 1, 2025 | — |
| 424B3 | Prospectus | Oct 1, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 1, 2025 | Oct 1, 2025 |
| 3 | Initial insider ownership | Sep 30, 2025 | Sep 5, 2025 |
| 424B3 | Prospectus | Sep 8, 2025 | — |
| 424B3 | Prospectus | Sep 8, 2025 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 8, 2025 | Sep 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 26, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 424B3 | Prospectus | Aug 14, 2025 | — |
| 424B3 | Prospectus | Aug 14, 2025 | — |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 13, 2025 | Aug 13, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2025 | — |
| 424B3 | Prospectus | May 15, 2025 | — |
| 424B3 | Prospectus | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 15, 2025 | May 15, 2025 |
| 424B3 | Prospectus | May 1, 2025 | — |
| 424B3 | Prospectus | May 1, 2025 | — |
| 10-K/A | Amended annual report | Apr 30, 2025 | Dec 31, 2024 |
| 3 | Initial insider ownership | Apr 28, 2025 | Apr 17, 2025 |
| 424B3 | Prospectus | Apr 23, 2025 | — |
| 424B3 | Prospectus | Apr 23, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Apr 23, 2025 | Apr 17, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 2, 2025 | Mar 31, 2025 |
| S-8 | Employee stock plan registration | Mar 27, 2025 | — |
| 424B3 | Prospectus | Mar 27, 2025 | — |
| 424B3 | Prospectus | Mar 27, 2025 | — |
| 10-K | Annual report | Mar 27, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 20, 2025 |
| 424B3 | Prospectus | Mar 17, 2025 | — |
| 424B3 | Prospectus | Mar 17, 2025 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 17, 2025 | Mar 11, 2025 |
| 424B3 | Prospectus | Mar 4, 2025 | — |
| 424B3 | Prospectus | Mar 4, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Mar 4, 2025 | Feb 28, 2025 |
| 424B3 | Prospectus | Feb 28, 2025 | — |
| 424B3 | Prospectus | Feb 28, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 28, 2025 | Feb 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 14, 2025 | Jan 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 13, 2025 | Feb 11, 2025 |
| EFFECT | Filing | Feb 7, 2025 | — |
| EFFECT | Filing | Feb 7, 2025 | — |
| 424B3 | Prospectus | Feb 7, 2025 | — |
| 424B3 | Prospectus | Feb 7, 2025 | — |
| 424B3 | Prospectus | Feb 5, 2025 | — |
| 424B3 | Prospectus | Feb 5, 2025 | — |
| 8-K |
Current report
Agreement ended
|
Feb 5, 2025 | Jan 30, 2025 |
| CORRESP | Letter to the SEC | Feb 5, 2025 | — |
| CORRESP | Letter to the SEC | Feb 5, 2025 | — |
| S-1/A | Amended registration statement | Feb 4, 2025 | — |
| S-1/A | Amended registration statement | Feb 4, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 22, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 22, 2025 | — |
| S-1 | Registration statement | Jan 14, 2025 | — |
| S-1 | Registration statement | Jan 14, 2025 | — |
| 424B3 | Prospectus | Jan 6, 2025 | — |
| 424B3 | Prospectus | Jan 6, 2025 | — |
| 8-K |
Current report
Material agreement, Listing notice
|
Jan 6, 2025 | Jan 2, 2025 |
| 424B3 | Prospectus | Dec 23, 2024 | — |
| 424B3 | Prospectus | Dec 23, 2024 | — |
| 8-K |
Current report
Listing notice, Officer or director change
|
Dec 23, 2024 | Dec 19, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Dec 13, 2024 |
| 424B3 | Prospectus | Dec 16, 2024 | — |
| 424B3 | Prospectus | Dec 16, 2024 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Dec 16, 2024 | Dec 11, 2024 |
| 424B3 | Prospectus | Nov 26, 2024 | — |
| 424B3 | Prospectus | Nov 26, 2024 | — |
| EFFECT | Filing | Nov 25, 2024 | — |
| EFFECT | Filing | Nov 25, 2024 | — |
| POS AM | Filing | Nov 25, 2024 | — |
| POS AM | Filing | Nov 22, 2024 | — |
| 424B3 | Prospectus | Nov 14, 2024 | — |
| 424B3 | Prospectus | Nov 14, 2024 | — |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2024 | Nov 14, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2024 | — |
| POS AM | Filing | Nov 8, 2024 | — |
| POS AM | Filing | Nov 8, 2024 | — |
| 8-K/A | Amended current report | Nov 4, 2024 | Jul 31, 2024 |
| 8-K |
Current report
Restatement
|
Nov 1, 2024 | Nov 1, 2024 |
| S-8 | Employee stock plan registration | Oct 8, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 27, 2024 |
| EFFECT | Filing | Sep 19, 2024 | — |
| EFFECT | Filing | Sep 19, 2024 | — |
| 424B3 | Prospectus | Sep 19, 2024 | — |
| 424B3 | Prospectus | Sep 19, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 17, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 17, 2024 | — |
| CORRESP | Letter to the SEC | Sep 17, 2024 | — |
| CORRESP | Letter to the SEC | Sep 17, 2024 | — |
| S-1 | Registration statement | Sep 13, 2024 | — |
| S-1 | Registration statement | Sep 13, 2024 | — |
| 10-Q | Quarterly report | Aug 26, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 19, 2024 | Aug 19, 2024 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Aug 14, 2024 | Aug 6, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 12, 2024 | — |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Change to shareholder rights, Change in control, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure
|
Aug 6, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | Aug 2, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | Aug 2, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | Aug 2, 2024 | Jul 31, 2024 |
| 3 | Initial insider ownership | Aug 1, 2024 | Jul 31, 2024 |
| 3 | Initial insider ownership | Aug 1, 2024 | Jul 31, 2024 |
| 3 | Initial insider ownership | Aug 1, 2024 | Jul 31, 2024 |
| 3 | Initial insider ownership | Aug 1, 2024 | Jul 31, 2024 |
| 3 | Initial insider ownership | Aug 1, 2024 | Jul 31, 2024 |
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Company profile
- Industry
- Surgical & Medical Instruments & Apparatus (SIC 3841)
- Listed as
- ADGM (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Laguna Hills, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2006986
- Former names
- Aja Holdco, Inc. (until Aug 1, 2024)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.