Adagio Medical HoldingsADGM
13F holders, Q3 2025 (September 30)15holders +3
4new positions
1sold out
1famous investor
$1.94avg. 13F price*
At the end of Q3 2025, 15 institutions reported holding Adagio Medical Holdings Inc. (ADGM) in their 13F filings, up 3 from Q2 2025. 4 opened new positions and 1 sold out. The largest holders were Perceptive Advisors LLC ($19.2M), Adage Capital Partners Gp, L.L.C. ($2.1M) and RTW Investments, LP ($406K). 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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $117K |
| Exits | 1 | $82K |
All 13F filers, Q2 2025 → Q3 2025: 297,333 shares bought and 510,977 shares sold, net −213,644 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 15 holders
| Perceptive Advisors LLC | 0.56% | No change | 9,876,576 | $19.2M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Add +28.9% | 1,058,501 | $2.1M |
| RTW Investments, LP | 0.01% | No change | 209,361 | $406K |
| Shaolin Capital Management LLC | 0.07% | Reduce -70.8% | 180,000 | $349K |
| Opaleye Management Inc. | 0.03% | No change | 110,571 | $215K |
| Affinity Asset Advisors, LLC | 0.01% | No change | 80,000 | $155K |
| Geode Capital Management, LLC | 0.00% | No change | 36,242 | $70K |
| Vanguard Group Inc. | 0.00% | New | 33,078 | $64K |
| Renaissance Technologies | 0.00% | New | 27,000 | $52K |
| Toronto Dominion Bank | 0.00% | No change | 25,000 | $49K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -40.0% | 2,084 | $4K |
| UBS Group AG | 0.00% | Reduce -99.3% | 83 | $161 |
| Bank of America Corp. | 0.00% | Reduce -12.1% | 29 | $56 |
| Barclays PLC | 0.00% | New | 14 | $27 |
| Citigroup Inc. | 0.00% | New | 1 | $2 |
"% of holder's portfolio" is ADGM's weight in each manager's 13F, not the share of Adagio Medical Holdings Inc. the manager owns.