Who owns Adagio Medical Holdings, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ADGM from SEC Form 13F filings across 24 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 24 institutions disclosed 15.1M shares of Adagio Medical Holdings, Inc. worth $9.8M — about 67.9% of shares outstanding; the largest disclosed holder is PERCEPTIVE ADVISORS LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
24
13F holders
$9.8M
value, 2026 filers
67.9%
of shares outstanding (15.1M sh)
4
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ADGM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | PERCEPTIVE ADVISORS LLC | 9.9M | $6.4M | 0.1% | 44.5% | 0.0% |
| 2 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.3M | $820,039 | 0.0% | 5.7% | 0.0% |
| 3 | ADAR1 Capital Management, LLC | 1.2M | $785,469 | 0.0% | 5.4% | 0.0% |
| 4 | Alyeska Investment Group, L.P. | 1.2M | $755,605 | 0.0% | 5.2% | 0.0% |
| 5 | Sio Capital Management, LLC | 698,989 | $455,461 | 0.1% | 3.1% | -45.8% |
| 6 | SILVERARC CAPITAL MANAGEMENT, LLC | 224,360 | $146,193 | 0.0% | 1% | -11.0% |
| 7 | Shaolin Capital Management LLC | 171,170 | $111,534 | 0.0% | 0.8% | 0.0% |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 108,954 | $71,038 | 0.0% | 0.5% | +175.1% |
| 9 | Affinity Asset Advisors, LLC | 80,000 | $52,128 | 0.0% | 0.4% | 0.0% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 79,115 | $51,550 | 0.0% | 0.4% | -36.8% |
| 11 | VANGUARD FIDUCIARY TRUST CO | 53,782 | $35,066 | 0.0% | 0.2% | 0.0% |
| 12 | NORTHERN TRUST CORP | 30,875 | $20,118 | 0.0% | 0.1% | +43.0% |
| 13 | TORONTO DOMINION BANK | 25,000 | $16,300 | 0.0% | 0.1% | 0.0% |
| 14 | Opaleye Management Inc. | 18,444 | $13,353 | 0.0% | 0.1% | 0.0% |
| 15 | XTX Topco Ltd | 18,153 | $11,828 | 0.0% | 0.1% | -22.3% |
| 16 | CITADEL ADVISORS LLCNEW | 16,155 | $10,527 | 0.0% | 0.1% | new |
| 17 | HRT FINANCIAL LPNEW | 13,705 | $8,000 | 0.0% | 0.1% | new |
| 18 | CITIGROUP INC | 13,255 | $8,637 | 0.0% | 0.1% | +1325400.0% |
| 19 | BANK OF AMERICA CORP /DE/ | 11,531 | $7,507 | 0.0% | 0.1% | -10.3% |
| 20 | Tower Research Capital LLC (TRC) | 6,454 | $4,205 | 0.0% | 0% | +193.1% |
| 21 | UBS Group AGNEW | 2,268 | $1,479 | 0.0% | 0% | new |
| 22 | Crewe Advisors LLC | 500 | $326 | 0.0% | 0% | 0.0% |
| 23 | MORGAN STANLEY | 137 | $89 | 0.0% | 0% | 0.0% |
| 24 | BARCLAYS PLCNEW | 23 | $15 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.