Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ADGM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | PERCEPTIVE ADVISORS LLC | 3.8M | $4.3M | -61.7% | 24.838% | 0.09% |
| 2 | Sio Capital Management, LLC | 1.3M | $1.5M | 0.0% | 8.464% | 0.21% |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.3M | $1.4M | 0.0% | 8.268% | 0.00% |
| 4 | ADAR1 Capital Management, LLC | 1.2M | $1.4M | +4.0% | 7.919% | 0.09% |
| 5 | Alyeska Investment Group, L.P. | 1.2M | $1.3M | 0.0% | 7.618% | 0.00% |
| 6 | SILVERARC CAPITAL MANAGEMENT, LLC | 252K | $290K | -51.1% | 1.655% | 0.03% |
| 7 | Shaolin Capital Management LLC | 171K | $197K | 0.0% | 1.125% | 0.01% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 125K | $144K | +83.3% | 0.823% | 0.00% |
| 9 | Affinity Asset Advisors, LLC | 80K | $92K | 0.0% | 0.525% | 0.01% |
| 10 | VANGUARD FIDUCIARY TRUST CO | 54K | $62K | — | 0.353% | 0.00% |
| 11 | VANGUARD CAPITAL MANAGEMENT LLC | 40K | $46K | — | 0.260% | 0.00% |
| 12 | Granite Investment Partners, LLC | 27K | $31K | — | 0.178% | 0.00% |
| 13 | TORONTO DOMINION BANK | 25K | $29K | 0.0% | 0.164% | 0.00% |
| 14 | XTX Topco Ltd | 23K | $27K | +29.0% | 0.153% | 0.00% |
| 15 | NORTHERN TRUST CORP | 22K | $25K | 0.0% | 0.142% | 0.00% |
| 16 | Opaleye Management Inc. | 18K | $21K | -83.3% | 0.121% | 0.00% |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 17K | $19K | — | 0.109% | 0.00% |
| 18 | BANK OF AMERICA CORP /DE/ | 13K | $15K | +11.9% | 0.085% | 0.00% |
| 19 | Tower Research Capital LLC (TRC) | 2K | $3K | -73.0% | 0.015% | 0.00% |
| 20 | Crewe Advisors LLC | 500 | $575 | 0.0% | 0.003% | 0.00% |
| 21 | MORGAN STANLEY | 137 | $158 | 0.0% | 0.001% | 0.00% |
| 22 | CITIGROUP INC | 1 | $1 | — | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ADGM — a direct measure of their conviction.
Filings activity in ADGM during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new ADGM position in Q1 2026
Institutions that fully closed their ADGM position in Q1 2026
7 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 22 | +4.8% | 96.97% | 55.51 pp | $11M | 36% |
| Q4 2025 | 21 | +40% | 152.48% | 46.62 pp | $17M | 23% |
| Q3 2025 | 15 | +7.1% | 199.10% | +67.47 pp | $23M | +51% |
| Q2 2025 | 14 | 13% | 131.63% | +49.35 pp | $15M | +60% |
| Q1 2025 | 16 | +0.0% | 82.28% | 17.62 pp | $9M | 18% |
| Q4 2024 | 16 | +23% | 99.90% | 100.09 pp | $11M | 63% |
| Q3 2024 | 13 | — | 199.99% | — | $31M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ADGM stock.
Based on Q1 2026 13F filings, institutional ownership of Adagio Medical Holdings, Inc. stands at 97.0%, held across 22 reporting institutions.
PERCEPTIVE ADVISORS LLC is the largest reported institutional holder of ADGM, with approximately 3,780,830 shares worth $0.00B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of ADGM, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for ADGM is 41 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in ADGM during Q1 2026, while 4 fully exited. 13 added to existing positions and 4 trimmed.
ADGM institutional ownership fell by 55.51 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 98.0% of all reported 13F value in ADGM, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Adagio Medical Holdings, Inc. (ADGM) Institutional Ownership