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

13F Institutional Holders and Ownership History from Q3 2024 to Q3 2025

Type / Class
Equity / Common Stock, par value $0.0001per share
Symbol
ADGM on Nasdaq
Shares outstanding
15,385,189
Price per share
$0.88
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
11,638,540
Total reported value
$22,578,784
% of total 13F portfolios
0%
Share change
-243,644
Value change
-$417,507
Number of holders
15
Price from insider filings
$0.88
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Adagio Medical Holdings, Inc. - Common Stock, par value $0.0001per share (ADGM) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PERCEPTIVE ADVISORS LLC 74% $18,385,986 15,321,655 Perceptive Advisors LLC 31 Dec 2024
RA CAPITAL MANAGEMENT, L.P. 7.2% 0% $1,656,000 1,200,000 0% RA Capital Management, L.P. 30 Jun 2025
Adage Capital Management, L.P. 6.9% +31% $2,085,247 +$467,363 1,058,501 +29% Adage Capital Management, L.P. 30 Sep 2025

As of 30 Sep 2025, 15 institutional investors reported holding 11,638,540 shares of Adagio Medical Holdings, Inc. - Common Stock, par value $0.0001per share (ADGM). This represents 76% of the company’s total 15,385,189 outstanding shares.

Top 17 Institutional Shareholders

The largest institutional shareholders of Adagio Medical Holdings, Inc. - Common Stock, par value $0.0001per share (ADGM) together control 76% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
PERCEPTIVE ADVISORS LLC 64% 9,876,576 0% 0.56% $19,160,576
ADAGE CAPITAL PARTNERS GP, L.L.C. 6.9% 1,058,501 +29% 0% $2,053,492
RTW INVESTMENTS, LP 1.4% 209,361 0% 0.01% $406,160
Shaolin Capital Management LLC 1.2% 180,000 -71% 0.02% $349,200
Opaleye Management Inc. 0.72% 110,571 0% 0.03% $214,508
Affinity Asset Advisors, LLC 0.52% 80,000 0% 0.01% $155,200
GEODE CAPITAL MANAGEMENT, LLC 0.24% 36,242 0% 0% $70,308
VANGUARD GROUP INC 0.21% 33,078 0% $64,171
RENAISSANCE TECHNOLOGIES LLC 0.18% 27,000 0% $52,380
TORONTO DOMINION BANK 0.16% 25,000 0% 0% $48,500
Tower Research Capital LLC (TRC) 0.01% 2,084 -40% 0% $4,043
UBS Group AG 0% 83 -99% 0% $161
BANK OF AMERICA CORP /DE/ 0% 29 -12% 0% $56
BARCLAYS PLC 0% 14 0% $27
CITIGROUP INC 0% 1 0% $2
CITADEL ADVISORS LLC 0% 0 -100% $0
Cresset Asset Management, LLC 0% 0 -100% $0

Institutional Holders of Adagio Medical Holdings, Inc. - Common Stock, par value $0.0001per share (ADGM) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q3 11,638,540 $22,578,784 -$417,507 $1.94 15
2025 Q2 11,882,184 $14,927,921 +$160,006 $1.30 13
2025 Q1 11,593,031 $9,331,190 +$632,839 $0.80 14
2024 Q4 10,801,797 $11,342,157 -$3,360,595 $1.05 15
2024 Q3 12,019,550 $31,010,438 +$31,010,438 $2.58 12