Adagio Medical HoldingsADGM
13F holders, Q1 2026 (March 31)23holders +2
4new positions
3sold out
1famous investor
$1.13avg. 13F price*
At the end of Q1 2026, 23 institutions reported holding Adagio Medical Holdings Inc. (ADGM) in their 13F filings, up 2 from Q4 2025. 4 opened new positions and 3 sold out. The largest holders were Perceptive Advisors LLC ($11.0M), Sio Capital Management, LLC ($1.5M) and Adage Capital Partners Gp, L.L.C. ($1.4M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Adagio Medical Holdings Inc.
- CUSIP
- 00534B100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $51K |
| Exits | 3 | $824K |
All 13F filers, Q4 2025 → Q1 2026: 153,928 shares bought and 1,062,343 shares sold, net −908,415 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Perceptive Advisors LLC | 0.22% | No change | 9,876,576 | $11.0M |
| Sio Capital Management, LLC | 0.21% | No change | 1,288,461 | $1.5M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | No change | 1,258,501 | $1.4M |
| ADAR1 Capital Management, LLC | 0.08% | Add +4.0% | 1,205,447 | $1.4M |
| Alyeska Investment Group, L.P. | 0.00% | No change | 1,159,615 | $1.3M |
| Silverarc Capital Management, LLC | 0.03% | Reduce -51.1% | 251,972 | $290K |
| Shaolin Capital Management LLC | 0.02% | No change | 171,170 | $197K |
| Geode Capital Management, LLC | 0.00% | Add +83.3% | 125,241 | $144K |
| Affinity Asset Advisors, LLC | 0.01% | No change | 80,000 | $92K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 53,782 | $62K |
| Vanguard Capital Management LLC | 0.00% | — | 39,608 | $46K |
| Granite Investment Partners, LLC | 0.00% | New | 27,053 | $31K |
| Toronto Dominion Bank | 0.00% | No change | 25,000 | $29K |
| XTX Topco Ltd | 0.00% | Add +29.0% | 23,350 | $27K |
| Northern Trust Corp. | 0.00% | No change | 21,598 | $25K |
| Opaleye Management Inc. | 0.00% | No change | 18,444 | $21K |
| Renaissance Technologies | 0.00% | New | 16,557 | $19K |
| Bank of America Corp. | 0.00% | Add +11.9% | 12,857 | $15K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -73.0% | 2,202 | $3K |
| JPMorgan Chase & Co. | 0.00% | New | 975 | $1K |
| Crewe Advisors LLC | 0.00% | No change | 500 | $575 |
| Morgan Stanley | 0.00% | No change | 137 | $158 |
| Citigroup Inc. | 0.00% | New | 1 | $1 |
"% of holder's portfolio" is ADGM's weight in each manager's 13F, not the share of Adagio Medical Holdings Inc. the manager owns.