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Institutional Ownership

Adagio Med Hldgs Inc

CUSIP 00534B100COMADGMQ1 2026

13D / 13G Filings
13
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
76.4%
Max % of class reported
Institutional Holders
21
13F filers (latest quarter)

Beneficial Owners — Schedule 13D / 13G

13 filings · latest Feb 17, 2026

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#FiledReporting PersonForm% of ClassSharesFiling
1Feb 17, 2026Perceptive Advisors LLC13G/A57.5%15.32MSEC
2Feb 17, 2026Alyeska Investment Group, L.P.13G9.9%2.10MSEC
3Feb 17, 2026Adar1 Capital Management, LLC13G13.0%1.21MSEC
4Feb 11, 2026Sio Capital Management, LLC13G6.1%1.29MSEC
5Nov 13, 2025Adage Capital Management, L.P.13G/A6.9%1.06MSEC
6Aug 26, 2025Ra Capital Management, L.P.13G/A7.2%1.20MSEC
7Aug 14, 2025Ra Capital Management, L.P.13G/A—913.30MSEC
8Aug 12, 2025Adage Capital Management, L.P.13G5.3%821.3KSEC
9May 15, 2025Ra Capital Management, L.P.13G/A7.2%1.20MSEC
10Feb 14, 2025Ra Capital Management, L.P.13G/A9.9%1.61MSEC

3 more beneficial-ownership filings on Premium

See the full Schedule 13D/13G history for Adagio Med Hldgs Inc.

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Top Institutional Holders (13F)

Largest reported positions · latest quarter

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#FundSharesValue
1Perceptive Advisors LLC9.88M$11.01M
2Sio Capital Management, LLC1.29M$1.48M
3Adage Capital Partners Gp, L.L.C.1.26M$1.45M
4Adar1 Capital Management, LLC1.21M$1.39M
5Alyeska Investment Group, L.P.1.16M$1.33M
6Silverarc Capital Management, LLC252.0K$289.8K
7Shaolin Capital Management LLC171.2K$196.8K
8Geode Capital Management, LLC125.2K$144.0K
9Affinity Asset Advisors, LLC80.0K$92.0K
10Granite Investment Partners, LLC27.1K$31.1K