Adagio Medical HoldingsADGM

13F holders, Q2 2026 (June 30)
24holders +1
4new positions
3sold out
1famous investor
$0.65avg. 13F price*

At the end of Q2 2026, 24 institutions reported holding Adagio Medical Holdings Inc. (ADGM) in their 13F filings, up 1 from Q1 2026. 4 opened new positions and 3 sold out. The largest holders were Perceptive Advisors LLC ($6.4M), Adage Capital Partners Gp, L.L.C. ($820K) and ADAR1 Capital Management, LLC ($785K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Adagio Medical Holdings Inc.
CUSIP
00534B100
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q3 2024: 12Q3 2024Q4 2024: 15Q4 2024Q1 2025: 15Q1 2025Q2 2025: 12Q2 2025Q3 2025: 15Q3 2025Q4 2025: 21Q4 2025Q1 2026: 23Q1 2026Q2 2026: 24Q2 2026

Total Exit/New Position Q1 2026 → Q2 2026

InstitutionsTotal Value
New Positions4$20K
Exits3$51K

All 13F filers, Q1 2026 → Q2 2026: 128,290 shares bought and 714,318 shares sold, net −586,028 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 24 holders

Perceptive Advisors LLC 0.10% Add +0.0% 9,876,586 $6.4M
Adage Capital Partners Gp, L.L.C. 0.00% No change 1,258,501 $820K
ADAR1 Capital Management, LLC 0.04% No change 1,205,447 $785K
Alyeska Investment Group, L.P. 0.00% No change 1,159,615 $756K
Sio Capital Management, LLC 0.08% Reduce -45.8% 698,989 $455K
Silverarc Capital Management, LLC 0.02% Reduce -11.0% 224,360 $146K
Shaolin Capital Management LLC 0.01% No change 171,170 $112K
Vanguard Capital Management LLC 0.00% Add +175.1% 108,954 $71K
Affinity Asset Advisors, LLC 0.00% No change 80,000 $52K
Geode Capital Management, LLC 0.00% Reduce -36.8% 79,115 $52K
Vanguard Fiduciary Trust Co. 0.00% No change 53,782 $35K
Northern Trust Corp. 0.00% Add +43.0% 30,875 $20K
Toronto Dominion Bank 0.00% No change 25,000 $16K
Opaleye Management Inc. 0.00% No change 18,444 $13K
XTX Topco Ltd 0.00% Reduce -22.3% 18,153 $12K
Citadel Advisors 0.00% New 16,155 $11K
Citigroup Inc. 0.00% Add +1325400.0% 13,255 $9K
HRT Financial LP 0.00% New 13,705 $8K
Bank of America Corp. 0.00% Reduce -10.3% 11,531 $8K
Tower Research Capital LLC (TRC) 0.00% Add +193.1% 6,454 $4K
UBS Group AG 0.00% New 2,268 $1K
Crewe Advisors LLC 0.00% No change 500 $326
Morgan Stanley 0.00% No change 137 $89
Barclays PLC 0.00% New 23 $15

"% of holder's portfolio" is ADGM's weight in each manager's 13F, not the share of Adagio Medical Holdings Inc. the manager owns.