Adagio Medical HoldingsADGM
13F holders, Q4 2025 (December 31)21holders +6
11new positions
5sold out
$1.04avg. 13F price*
At the end of Q4 2025, 21 institutions reported holding Adagio Medical Holdings Inc. (ADGM) in their 13F filings, up 6 from Q3 2025. 11 opened new positions and 5 sold out. The largest holders were Perceptive Advisors LLC ($10.3M), Sio Capital Management, LLC ($1.3M) and Adage Capital Partners Gp, L.L.C. ($1.3M).
- Company
- Adagio Medical Holdings Inc.
- CUSIP
- 00534B100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 11 | $5.2M |
| Exits | 5 | $459K |
All 13F filers, Q3 2025 → Q4 2025: 5,252,399 shares bought and 337,416 shares sold, net +4,914,983 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 21 holders
| Perceptive Advisors LLC | 0.19% | No change | 9,876,576 | $10.3M |
| Sio Capital Management, LLC | 0.22% | New | 1,288,461 | $1.3M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Add +18.9% | 1,258,501 | $1.3M |
| Alyeska Investment Group, L.P. | 0.00% | New | 1,159,615 | $1.2M |
| ADAR1 Capital Management, LLC | 0.09% | New | 1,159,614 | $1.2M |
| Silverarc Capital Management, LLC | 0.08% | New | 515,384 | $536K |
| Armistice Capital, LLC | 0.01% | New | 478,000 | $497K |
| Hudson Bay Capital Management LP | 0.00% | New | 296,369 | $308K |
| Shaolin Capital Management LLC | 0.02% | Reduce -4.9% | 171,170 | $178K |
| Affinity Asset Advisors, LLC | 0.01% | No change | 80,000 | $83K |
| Vanguard Group Inc. | 0.00% | Add +140.2% | 79,451 | $83K |
| Geode Capital Management, LLC | 0.00% | Add +88.6% | 68,342 | $71K |
| Toronto Dominion Bank | 0.00% | No change | 25,000 | $26K |
| Northern Trust Corp. | 0.00% | New | 21,598 | $22K |
| Opaleye Management Inc. | 0.00% | Reduce -83.3% | 18,444 | $19K |
| HRT Financial LP | 0.00% | New | 18,618 | $19K |
| XTX Topco Ltd | 0.00% | New | 18,103 | $19K |
| Bank of America Corp. | 0.00% | Add +39534.5% | 11,494 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +290.9% | 8,146 | $8K |
| Crewe Advisors LLC | 0.00% | New | 500 | $520 |
| Morgan Stanley | 0.00% | New | 137 | $142 |
"% of holder's portfolio" is ADGM's weight in each manager's 13F, not the share of Adagio Medical Holdings Inc. the manager owns.