Companies / Adagio Medical Holdings, Inc.

Adagio Medical Holdings, Inc.

Nasdaq: ADGMCIK 2006986LAGUNA HILLS, CA

Financials · FY2025

Revenue$0
Net income$-25.08M
Total debt$24.84M
Cash$7.74M
Diluted EPS$-1.51
Shares outstanding22.2M

Ownership

22.2M shares outstanding · as of Aug 10, 2026
15.2%10%+ / strategic
Ownership
10%+ / strategic15.24%3,385,245
Institutions64.25%14,271,044
Public float20.50%4,554,170

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 2

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Insider% of sharesShares
Kaster DeborahChief Financial Officer
——
Usen ToddCEOChief Executive Officer · Director
——

Institutional holders 23

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HolderValue% of shares
Perceptive Advisors LLC$11.01M44.47%
Adage Capital Partners Gp, L.L.C.$1.45M5.67%
Sio Capital Management, LLC$1.34M5.80%
Alyeska Investment Group, L.P.$1.21M5.22%
ADAR1 Capital Management, LLC$1.21M5.22%
SilverArc Capital Management, LLC$536.0K2.32%
Armistice Capital, LLC$497.1K2.15%
Hudson Bay Capital Management LP$308.2K1.33%
Shaolin Capital Management LLC$178.0K0.77%
Geode Capital Management, LLC$144.0K0.56%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Mar 6, 2026Kaster Deborah
Executive
GrantEmployee Stock Options (Right to Buy)—+491K
490,500
2.21% of shares
low
Mar 6, 2026Usen Todd
CEO
GrantEmployee Stock Options (Right to Buy)—+800K
800,000
3.60% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Perceptive Advisors LLCPassive13G/A———
Alyeska Investment Group, L.P.Passive13G—2,096,784—
Sio Capital Management, LLCPassive13G—1,288,461—
ADAR1 Capital Management, LLCPassive13G———
Perceptive Advisors LLCPassive13G/A———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ADGM——00534B100—