Adagio Medical Holdings, Inc. - Common Stock, par value, $0.0001 per share (ADGM)

Q: What does CUSIP 00534B100 represent in this 13F holders report?

CUSIP 00534B100 is the security identifier for ADGM - Adagio Medical Holdings, Inc. - Common Stock, par value, $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ADGM - Adagio Medical Holdings, Inc. - Common Stock, par value, $0.0001 per share in Q4 2025?

21 institutional investors reported ADGM - Adagio Medical Holdings, Inc. - Common Stock, par value, $0.0001 per share for Q4 2025. Use the holders table for investor-level position and value details.

CUSIP: 00534B100

Q4 2025 13F Holders as of 31 Dec 2025

Security type / class: Equity / Common Stock, par value, $0.0001 per share
Total 13F shares: 16,553,523
Total 13F value: $17,215,301
Share change: +4,914,983
SEC-reported price per share: $1.04
Number of holders: 21
Value change: +$4,898,407
Number of buys: 16
Number of sells: 7
Shares outstanding: 22,190,127

Security key

00534B100

Report period

Q4 2025

Institutions

Top holders

ADGM full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2026 Previous quarter: Q3 2025 Adagio Medical Holdings, Inc. SEC filings Adagio Medical Holdings, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 00534B100

Newer quarter: Q1 2026 Previous quarter: Q3 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of ADGM - Adagio Medical Holdings, Inc. - Common Stock, par value, $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Alyeska Investment Group,...

Disclosed value leader

PERCEPTIVE ADVISORS LLC

Comparable rows

15/15

Latest evidence

31 Dec 2025

13D/G 13F 3/4/5 Lead comparable stake: 9.9% 13D/G row: Alyeska Investment Group, L.P. Showing 1-6 of 15 holder rows.

Quick read

Alyeska Investment Group, L.P. leads the comparable SEC ownership view at 9.9%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Alyeska Investment Group, L.P.'s linked filing trail.

Comparable ownership Top 5

Alyeska Investment Group, L.P. 9.9%

RA CAPITAL MANAGEMENT, L.P. 7.2%

ADAR1 Capital Management, LLC 5.7%

PERCEPTIVE ADVISORS LLC 45%

ADAGE CAPITAL PARTNERS GP, L.L.C. 4.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Alyeska Investment Group, L.P.	13D/G 13D/G	9.9%	$1,991,945 2,096,784 shares	$0	31 Dec 2025
RA CAPITAL MANAGEMENT, L.P.	13D/G 13D/G	7.2%	$1,656,000 1,200,000 shares	$0	30 Jun 2025
ADAR1 Capital Management, LLC	13D/G 13D/G	5.7%	$1,205,447 1,205,447 shares	$0	31 Dec 2025
PERCEPTIVE ADVISORS LLC	13F 3/4/5 Company · Director, 10%+ Owner 13F 3/4/5	45%	$19,160,576 9,876,576 shares	—	30 Sep 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	4.8%	$2,053,492 1,058,501 shares	—	30 Sep 2025
RTW INVESTMENTS, LP	13F Company 13F	0.94%	$406,160 209,361 shares	—	30 Sep 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

16,553,523

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders

Q4 2025 holders

Holder diff

Investor	Q3 2025 Shares	Q4 2025 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend