Deborah Kaster - 05 Sep 2025 Form 3 Insider Report for Adagio Medical Holdings, Inc. (ADGM)

Role: Chief Financial Officer
Signature: /s/ Deborah Kaster
Issuer symbol: ADGM
Transactions as of: 05 Sep 2025
Net transactions value: $0
Form type: 3
Filing time: 30 Sep 2025, 06:01:40 UTC
Next filing: 18 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kaster Deborah	Chief Financial Officer	C/O ADAGIO MEDICAL HOLDINGS, INC., 26051 MERIT CIRCLE, STE. 102, LAGUNA HILLS	/s/ Deborah Kaster	30 Sep 2025	0002089223

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	ADGM	Employee Stock Option (right to buy)							05 Sep 2025	Common Stock	728,000	$0.8400	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Twenty-five percent (25%) of Option shares will vest on the one-year anniversary of April 1, 2025, with the remaining shares vesting in thirty-six (36) equal monthly installments thereafter.