Adagio Medical Holdings, Inc.

Symbol
ADGM on Nasdaq
Business address
26051 Merit Circle, Suite 102, Laguna Hills, CA, 92653
State of incorporation
DE
Fiscal year end
December 31
Former names
Aja Holdco, Inc. (to 8/1/2024)
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Adagio Medical Holdings, Inc. has filed 177 SEC EDGAR filings since 2/14/2024

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
424B3 Open Document Open Filing 424B3 Dec 12, 2025 333-291741
424B3 Open Document Open Filing 424B3 Dec 12, 2025 333-284263
424B3 Open Document Open Filing 424B3 Dec 12, 2025 333-284266
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 11, 2025 Dec 11, 2025
3 Open Document Open Filing OWNERSHIP DOCUMENT Dec 11, 2025 Dec 11, 2025
DEFA14A Open Document Open Filing DEFA14A Dec 11, 2025 001-42199
8-K Open Document | Data Open Filing FORM 8-K Dec 11, 2025 Dec 11, 2025 001-42199
S-3 Open Document | Data Open Filing S-3 Nov 24, 2025 333-291741
SCHEDULE 13G/A Open Document Open Filing Nov 13, 2025 005-94588
424B3 Open Document Open Filing 424B3 Nov 12, 2025 333-284266
424B3 Open Document Open Filing 424B3 Nov 12, 2025 333-284263
10-Q Open Document | Data Open Filing 10-Q Nov 12, 2025 Sep 30, 2025 001-42199
8-K Open Document | Data Open Filing 8-K Nov 12, 2025 Nov 12, 2025 001-42199
ARS Open Document Open Filing ARS Nov 4, 2025 Dec 31, 2024 001-42199
DEF 14A Open Document | Data Open Filing DEF 14A Nov 4, 2025 Dec 15, 2025 001-42199
D Open Document Open Filing Oct 29, 2025 021-562448
424B3 Open Document Open Filing 424B3 Oct 24, 2025 333-284266
424B3 Open Document Open Filing 424B3 Oct 24, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Oct 24, 2025 Oct 23, 2025 001-42199
4 Open Document Open Filing 4 Oct 22, 2025 Oct 20, 2025
424B3 Open Document Open Filing 424B3 Oct 20, 2025 333-284263
424B3 Open Document Open Filing 424B3 Oct 20, 2025 333-284266
8-K Open Document | Data Open Filing FORM 8-K Oct 20, 2025 Oct 20, 2025 001-42199
424B3 Open Document Open Filing 424B3 Oct 15, 2025 333-284266
424B3 Open Document Open Filing 424B3 Oct 15, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Oct 15, 2025 Oct 14, 2025 001-42199
424B3 Open Document Open Filing 424B3 Oct 10, 2025 333-284266
424B3 Open Document Open Filing 424B3 Oct 10, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Oct 10, 2025 Oct 10, 2025 001-42199
424B3 Open Document Open Filing 424B3 Oct 1, 2025 333-284266
424B3 Open Document Open Filing 424B3 Oct 1, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Oct 1, 2025 Oct 1, 2025 001-42199
3 Open Document Open Filing OWNERSHIP DOCUMENT Sep 30, 2025 Sep 5, 2025
424B3 Open Document Open Filing 424B3 Sep 8, 2025 333-284263
424B3 Open Document Open Filing 424B3 Sep 8, 2025 333-284266
8-K Open Document | Data Open Filing FORM 8-K Sep 8, 2025 Sep 3, 2025 001-42199
SCHEDULE 13G/A Open Document Open Filing Aug 26, 2025 005-94588
SCHEDULE 13G/A Open Document Open Filing Aug 14, 2025 005-94588
424B3 Open Document Open Filing 424B3 Aug 14, 2025 333-284266
424B3 Open Document Open Filing 424B3 Aug 14, 2025 333-284263
10-Q Open Document | Data Open Filing 10-Q Aug 14, 2025 Jun 30, 2025 001-42199
8-K Open Document | Data Open Filing 8-K Aug 13, 2025 Aug 13, 2025 001-42199
SCHEDULE 13G Open Document Open Filing Aug 12, 2025 005-94588
424B3 Open Document Open Filing 424B3 May 15, 2025 333-284263
424B3 Open Document Open Filing 424B3 May 15, 2025 333-284266
SCHEDULE 13G/A Open Document Open Filing May 15, 2025 005-94588
10-Q Open Document | Data Open Filing 10-Q May 15, 2025 Mar 31, 2025 001-42199
8-K Open Document | Data Open Filing FORM 8-K May 15, 2025 May 15, 2025 001-42199
424B3 Open Document Open Filing 424B3 May 1, 2025 333-284266
424B3 Open Document Open Filing 424B3 May 1, 2025 333-284263
10-K/A Open Document | Data Open Filing 10-K/A Apr 30, 2025 Dec 31, 2024 001-42199
3 Open Document Open Filing Apr 28, 2025 Apr 17, 2025
424B3 Open Document Open Filing 424B3 Apr 23, 2025 333-284266
424B3 Open Document Open Filing 424B3 Apr 23, 2025 333-284263
8-K Open Document | Data Open Filing 8-K Apr 23, 2025 Apr 17, 2025 001-42199
8-K Open Document | Data Open Filing FORM 8-K Apr 2, 2025 Mar 31, 2025 001-42199
S-8 Open Document Open Filing FORM S-8 Mar 27, 2025 333-286193
424B3 Open Document Open Filing 424B3 Mar 27, 2025 333-284266
424B3 Open Document Open Filing 424B3 Mar 27, 2025 333-284263
10-K Open Document | Data Open Filing 10-K Mar 27, 2025 Dec 31, 2024 001-42199
4 Open Document Open Filing Mar 21, 2025 Mar 20, 2025
4 Open Document Open Filing Mar 21, 2025 Mar 20, 2025
4 Open Document Open Filing Mar 21, 2025 Mar 20, 2025
4 Open Document Open Filing Mar 21, 2025 Mar 20, 2025
4 Open Document Open Filing Mar 21, 2025 Mar 20, 2025
424B3 Open Document Open Filing 424B3 Mar 17, 2025 333-284266
424B3 Open Document Open Filing 424B3 Mar 17, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Mar 17, 2025 Mar 11, 2025 001-42199
424B3 Open Document Open Filing 424B3 Mar 4, 2025 333-284266
424B3 Open Document Open Filing 424B3 Mar 4, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Mar 4, 2025 Feb 28, 2025 001-42199
424B3 Open Document Open Filing 424B3 Feb 28, 2025 333-284266
424B3 Open Document Open Filing 424B3 Feb 28, 2025 333-284263
8-K Open Document | Data Open Filing FORM 8-K Feb 28, 2025 Feb 28, 2025 001-42199
SCHEDULE 13G/A Open Document Open Filing Feb 14, 2025 005-94588
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Feb 14, 2025 Jan 22, 2025
SCHEDULE 13G/A Open Document Open Filing Feb 14, 2025 005-94588
4 Open Document Open Filing Feb 13, 2025 Feb 11, 2025
EFFECT Open Document Open Filing Feb 7, 2025 333-284266
EFFECT Open Document Open Filing Feb 7, 2025 333-284263
424B3 Open Document Open Filing S-1/A Feb 7, 2025 333-284266
424B3 Open Document Open Filing S-1/A Feb 7, 2025 333-284263
424B3 Open Document Open Filing 424B3 Feb 5, 2025 333-282126
424B3 Open Document Open Filing 424B3 Feb 5, 2025 333-282125
8-K Open Document | Data Open Filing FORM 8-K Feb 5, 2025 Jan 30, 2025 001-42199
CORRESP Open Document Open Filing Feb 5, 2025
CORRESP Open Document Open Filing Feb 5, 2025
S-1/A Open Document Open Filing S-1/A Feb 4, 2025 333-284266
S-1/A Open Document Open Filing S-1/A Feb 4, 2025 333-284263
UPLOAD Open Document Open Filing Jan 22, 2025 333-284266
UPLOAD Open Document Open Filing Jan 22, 2025 333-284263
S-1 Open Document | Data Open Filing FORM S-1 Jan 14, 2025 333-284266
S-1 Open Document | Data Open Filing FORM S-1 Jan 14, 2025 333-284263
424B3 Open Document Open Filing 424B3 Jan 6, 2025 333-282126
424B3 Open Document Open Filing 424B3 Jan 6, 2025 333-282125
8-K Open Document | Data Open Filing FORM 8-K Jan 6, 2025 Jan 2, 2025 001-42199
424B3 Open Document Open Filing 424B3 Dec 23, 2024 333-282126
424B3 Open Document Open Filing 424B3 Dec 23, 2024 333-282125
8-K Open Document | Data Open Filing 8-K Dec 23, 2024 Dec 19, 2024 001-42199
3 Open Document Open Filing Dec 20, 2024 Dec 13, 2024
424B3 Open Document Open Filing 424B3 Dec 16, 2024 333-282126
424B3 Open Document Open Filing 424B3 Dec 16, 2024 333-282125
8-K Open Document | Data Open Filing 8-K Dec 16, 2024 Dec 11, 2024 001-42199
424B3 Open Document Open Filing 424B3 Nov 26, 2024 333-282125
424B3 Open Document Open Filing 424B3 Nov 26, 2024 333-282126
EFFECT Open Document Open Filing Nov 25, 2024 333-282126
EFFECT Open Document Open Filing Nov 25, 2024 333-282125
POS AM Open Document | Data Open Filing POS AM Nov 25, 2024 333-282125
POS AM Open Document | Data Open Filing POS AM Nov 22, 2024 333-282126
424B3 Open Document Open Filing 424B3 Nov 14, 2024 333-282125
424B3 Open Document Open Filing 424B3 Nov 14, 2024 333-282126
10-Q Open Document | Data Open Filing 10-Q Nov 14, 2024 Sep 30, 2024 001-42199
8-K Open Document | Data Open Filing 8-K Nov 14, 2024 Nov 14, 2024 001-42199
SC 13G Open Document Open Filing SC 13G Nov 13, 2024 005-94588
POS AM Open Document | Data Open Filing POS AM Nov 8, 2024 333-282126
POS AM Open Document | Data Open Filing POS AM Nov 8, 2024 333-282125
8-K/A Open Document | Data Open Filing 8-K/A Nov 4, 2024 Jul 31, 2024 001-42199
8-K Open Document | Data Open Filing 8-K Nov 1, 2024 Nov 1, 2024 001-42199
S-8 Open Document Open Filing S-8 Oct 8, 2024 333-282544
4 Open Document Open Filing FORM 4 Oct 1, 2024 Sep 27, 2024
EFFECT Open Document Open Filing Sep 19, 2024 333-282126
EFFECT Open Document Open Filing Sep 19, 2024 333-282125
424B3 Open Document Open Filing 424B3 Sep 19, 2024 333-282126
424B3 Open Document Open Filing 424B3 Sep 19, 2024 333-282125
UPLOAD Open Document Open Filing Sep 17, 2024 333-282126
UPLOAD Open Document Open Filing Sep 17, 2024 333-282125
CORRESP Open Document Open Filing Sep 17, 2024
CORRESP Open Document Open Filing Sep 17, 2024
S-1 Open Document | Data Open Filing FORM-S-1 Sep 13, 2024 333-282126
S-1 Open Document | Data Open Filing FORM S-1 Sep 13, 2024 333-282125
10-Q Open Document | Data Open Filing 10-Q Aug 26, 2024 Jun 30, 2024 001-42199
8-K Open Document | Data Open Filing FORM 8-K Aug 19, 2024 Aug 19, 2024 001-42199
8-K/A Open Document Open Filing 8-K/A Aug 14, 2024 Aug 6, 2024 001-42199
SC 13G Open Document Open Filing SC 13G Aug 12, 2024 005-94588
8-K Open Document Open Filing 8-K Aug 6, 2024 Jul 31, 2024 001-42199
4 Open Document Open Filing FORM 4 Aug 2, 2024 Jul 31, 2024
4 Open Document Open Filing FORM 4 Aug 2, 2024 Jul 31, 2024
4 Open Document Open Filing FORM 4 Aug 2, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
3 Open Document Open Filing FORM 3 Aug 1, 2024 Jul 31, 2024
CERT Open Document Open Filing Aug 1, 2024 001-42199
8-A12B Open Document Open Filing 8-A12B Aug 1, 2024 001-42199
425 Open Document Open Filing 425 Jul 26, 2024 333-278811
425 Open Document Open Filing 425 Jul 23, 2024 333-278811
EFFECT Open Document Open Filing Jul 12, 2024 333-278811
424B3 Open Document Open Filing 424B3 Jul 12, 2024 333-278811
CORRESP Open Document Open Filing Jul 11, 2024
CORRESP Open Document Open Filing Jul 11, 2024
S-4/A Open Document Open Filing S-4/A Jul 11, 2024 333-278811
UPLOAD Open Document Open Filing Jul 11, 2024 377-07110
425 Open Document Open Filing 425 Jul 2, 2024 333-278811
CORRESP Open Document Open Filing Jun 25, 2024
S-4/A Open Document Open Filing S-4/A Jun 25, 2024 333-278811
425 Open Document Open Filing 425 Jun 25, 2024 333-278811
425 Open Document Open Filing 425 Jun 11, 2024 333-278811
425 Open Document Open Filing 425 Jun 3, 2024 333-278811
UPLOAD Open Document Open Filing May 30, 2024 377-07110
425 Open Document Open Filing 425 May 16, 2024
CORRESP Open Document Open Filing May 13, 2024
S-4/A Open Document Open Filing S-4/A May 13, 2024 333-278811
UPLOAD Open Document Open Filing May 3, 2024 377-07110
425 Open Document Open Filing 425 May 2, 2024 333-278811
425 Open Document Open Filing 425 May 2, 2024 333-278811
S-4 Open Document Open Filing S-4 Apr 19, 2024 333-278811
CORRESP Open Document Open Filing Apr 18, 2024
425 Open Document Open Filing 425 Mar 25, 2024
UPLOAD Open Document Open Filing Mar 12, 2024 377-07110
DRS Open Document Open Filing Feb 14, 2024 377-07110