{"filing": {"accession": "0001104659-26-082769", "cik": "0002006986", "ticker": "ADGM", "company_name": "Adagio Medical Holdings, Inc.", "form_type": "10-K/A", "filing_type": "10-K/A", "filing_date": "2026-07-13", "accepted_datetime": null, "acceptance_datetime": null, "accepted_at": null, "primary_doc_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465926082769/0001104659-26-082769-index.htm", "filing_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465926082769/0001104659-26-082769-index.htm", "period_of_report": "2025-12-31"}, "html_url": "/api/filings/000110465926082769/stream", "exhibits": [{"exhibit_number": "31.1", "exhibit_type": "31", "description": "Certification of Principal Executive Officer Pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.", "filename": "tm2620259d1_ex31-1.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465926082769/tm2620259d1_ex31-1.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "31.2", "exhibit_type": "31", "description": "Certification of Principal Financial Officer Pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.", "filename": "tm2620259d1_ex31-2.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465926082769/tm2620259d1_ex31-2.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "2.1", "exhibit_type": "2", "description": "Business Combination Agreement, dated as of February 13, 2024, by and among Aja HoldCo, Inc., ARYA Sciences Acquisition Corp IV, Aja Merger Sub 1, Aja Merger Sub 2, Inc. and Adagio Medical, Inc. (incorporated by reference to Exhibit 2.1 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex2-1.htm", "category": "plans", "incorporated_by_reference": true}, {"exhibit_number": "2.2", "exhibit_type": "2", "description": "Consent and Amendment No. 1 to the Business Combination Agreement, dated as of June 25, 2024, by and among ARYA Sciences Acquisition Corp IV and Adagio Medical, Inc. (incorporated by reference to Exhibit 2.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex2-2.htm", "category": "plans", "incorporated_by_reference": true}, {"exhibit_number": "3.1", "exhibit_type": "3", "description": "Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex3-1.htm", "category": "incorporation", "incorporated_by_reference": true}, {"exhibit_number": "3.2", "exhibit_type": "3", "description": "Amended and Restated By-Laws of the Company (incorporated by reference to Exhibit 3.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex3-2.htm", "category": "incorporation", "incorporated_by_reference": true}, {"exhibit_number": "4.1", "exhibit_type": "4", "description": "Form of Base Warrant Agreement (incorporated by reference to Exhibit 4.1 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex4-1.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "4.2", "exhibit_type": "4", "description": "Form of Pre-Funded Warrant Agreement (incorporated by reference to Exhibit 4.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex4-2.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "4.3", "exhibit_type": "4", "description": "Form of Convertible Note (incorporated by reference to Exhibit 10.12 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-12.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "4.4", "exhibit_type": "4", "description": "Form of Convert Warrant Agreement (incorporated by reference to Exhibit 4.3 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex4-3.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "4.5", "exhibit_type": "4", "description": "Specimen Common Stock Certificate of New Adagio (incorporated by reference to Exhibit 4.4 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex4-4.htm", "category": "other", "incorporated_by_reference": true}, {"exhibit_number": "4.6", "exhibit_type": "4", "description": "Form of Pre-Funded Warrant Agreement (incorporated by reference to Exhibit 4.1 to the Company\u2019s Current Report on Form 8-K filed with the SEC on October 15, 2025).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465925099535/tm2528783d1_ex4-1.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "4.7", "exhibit_type": "4", "description": "Form of Milestone Warrant (incorporated by reference to Exhibit 4.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on October 15, 2025).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465925099535/tm2528783d1_ex4-2.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "10.1", "exhibit_type": "10", "description": "Form of Convertible Security Subscription Agreement (incorporated by reference to Exhibit 10.1 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-1.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.2", "exhibit_type": "10", "description": "Investor Rights Agreement, dated as of February 13, 2024, by and among ARYA, ListCo, the Perceptive PIPE Investor, the Sponsor and the other parties thereto (incorporated by reference to Exhibit 10.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-2.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.3", "exhibit_type": "10", "description": "Sponsor Letter Agreement, dated February 13, 2024, by and between ARYA Sciences Acquisition Corp, ARYA Sciences Holdings IV, Todd Wider, Michael Henderson, Leslie Trigg, Joseph Edelman, Adam Stone, Michael Altman, Konstantin Poukalov and Adagio Medical, Inc. (incorporated by reference to Exhibit 10.3 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-3.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.4", "exhibit_type": "10", "description": "Form of New Adagio 2024 Equity Incentive Plan (incorporated by reference to Exhibit 10.5 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-5.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.5", "exhibit_type": "10", "description": "Form of New Adagio 2024 Key Employee Equity Incentive Plan (incorporated by reference to Exhibit 10.6 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-6.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.6", "exhibit_type": "10", "description": "Form of New Adagio 2024 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.7 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-7.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.7", "exhibit_type": "10", "description": "Form of New Adagio Indemnity Agreement (incorporated by reference to Exhibit 10.8 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-8.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.8", "exhibit_type": "10", "description": "Convert Guaranty, dated as of July 31, 2024, by and among Adagio and the other parties thereto (incorporated by reference to Exhibit 10.9 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-9.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.9", "exhibit_type": "10", "description": "Convert Security Document, dated as of July 31, 2024, by and among New Adagio, Adagio and the other parties thereto (incorporated by reference to Exhibit 10.10 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-10.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.10", "exhibit_type": "10", "description": "Registration Rights Agreement dated as of July 31, 2024, by and among New Adagio, Perceptive Life Sciences Master Fund, Ltd. and the other parties thereto (incorporated by reference to Exhibit 10.11 to the Company\u2019s Current Report on Form 8-K filed with the SEC on August 6, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000114036124035942/ef20033584_ex10-11.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "10.11", "exhibit_type": "10", "description": "Form of Registration Rights Agreement, dated October 14, 2025, by and among the Company and each of the several purchasers signatory thereto (incorporated by reference to Exhibit 10.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on October 15, 2025).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465925099535/tm2528783d1_ex10-2.htm", "category": "debt", "incorporated_by_reference": true}, {"exhibit_number": "10.12", "exhibit_type": "10", "description": "Offer Letter, dated December 12, 2024, by and between the Company and Todd Usen (incorporated by reference to Exhibit 10.2 to the Company\u2019s Current Report on Form 8-K filed with the SEC on December 16, 2024).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000155837024016265/adgm-20241211xex10d2.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.13", "exhibit_type": "10", "description": "Amended and Restated Offer Letter, dated September 3, 2025, between the Company and Deborah Kaster (incorporated by reference to Exhibit 10.1 to the Company\u2019s Quarterly Report on Form 10-Q filed with the SEC on November 12, 2025).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000110465925110345/adgm-20250930xex10d1.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "10.14", "exhibit_type": "10", "description": "Tenth Amendment to the Facilities and Services Agreement, dated August 1, 2024, between Fjord Ventures, LLC and Legacy Adagio (incorporated by reference to Exhibit 10.24 to the Company\u2019s Annual Report on Form 10-K filed with the SEC on March 27, 2025).", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/2006986/000155837025003849/adgm-20241231xex10d24.htm", "category": "contracts", "incorporated_by_reference": true}, {"exhibit_number": "19.1", "exhibit_type": "19", "description": "Insider Trading Policy (incorporated by reference to Exhibit 19.1 to the Company\u2019s Annual Report on Form 10-K filed with the SEC on March 27, 2025).", "filename": "", "edgar_url": 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