Adagio Medical Holdings, Inc. - ADGM
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | History | No change | 9,876,576 | 10,271 | 0.18% | 0.55% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Sio Capital Management, LLC | History | New | 1,288,461 | 1,339 | 0.21% | — | 2 | +1,288,461 | New | Q4 2025 | Feb 17, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Added to | 1,258,501 | 1,308 | 0.0% | 0.0% | 3 | +200,000 | 18.89% | Q4 2025 | Feb 17, 2026 |
| Alyeska Investment Group, L.P. | History | New | 1,159,615 | 1,206 | 0.0% | — | 4 | +1,159,615 | New | Q4 2025 | Feb 13, 2026 |
| ADAR1 Capital Management, LLC | History | New | 1,159,614 | 1,205 | 0.09% | — | 5 | +1,159,614 | New | Q4 2025 | Feb 18, 2026 |
| SILVERARC CAPITAL MANAGEMENT, LLC | History | New | 515,384 | 535 | 0.07% | — | 6 | +515,384 | New | Q4 2025 | Feb 12, 2026 |
| ARMISTICE CAPITAL, LLC | History | New | 478,000 | 497 | 0.01% | — | 7 | +478,000 | New | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | New | 296,369 | 308 | 0.0% | — | 8 | +296,369 | New | Q4 2025 | Feb 13, 2026 |
| Shaolin Capital Management LLC | History | Reduced | 171,170 | 178 | 0.01% | 0.02% | 9 | -8,830 | -4.91% | Q4 2025 | Feb 17, 2026 |
| Opaleye Management Inc. | History | No change | 110,571 | 114 | 0.02% | 0.03% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Affinity Asset Advisors, LLC | History | No change | 80,000 | 83 | 0.0% | 0.01% | 11 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| VANGUARD GROUP INC | History | Added to | 79,451 | 82 | 0.0% | 0.0% | 12 | +46,373 | 140.19% | Q4 2025 | Jan 29, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 68,342 | 71 | 0.0% | 0.0% | 13 | +32,100 | 88.57% | Q4 2025 | Feb 09, 2026 |
| TORONTO DOMINION BANK | History | No change | 25,000 | 26 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | New | 21,598 | 22 | 0.0% | — | 15 | +21,598 | New | Q4 2025 | Feb 17, 2026 |
| HRT FINANCIAL LP | History | New | 18,618 | 19 | 0.0% | — | 16 | +18,618 | New | Q4 2025 | Feb 12, 2026 |
| XTX Topco Ltd | History | New | 18,103 | 18 | 0.0% | — | 17 | +18,103 | New | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 11,494 | 11 | 0.0% | — | 18 | +11,465 | 39534.48% | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 8,146 | 8 | 0.0% | 0.0% | 19 | +6,062 | 290.88% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -27,000 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Crewe Advisors LLC | History | New | 500 | 0 | — | — | — | +500 | New | Q4 2025 | Jan 16, 2026 |
| MORGAN STANLEY | History | New | 137 | 0 | — | — | — | +137 | New | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | Closed out | 0 | 0 | — | — | — | -83 | -100.0% | Q3 2025 | Nov 13, 2025 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | — | — | -14 | -100.0% | Q3 2025 | Mar 31, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q3 2025 | Nov 10, 2025 |