Adagio Medical Ownership | Who Owns Adagio Medical?
Adagio Medical Ownership Summary
Adagio Medical is owned by 0.73% institutional investors, 2.41% insiders, and 96.87% retail investors. Perceptive advisors is the largest institutional shareholder, holding 22.81% of ADGM shares. Fidelity Extended Market Index is the top mutual fund, with 0.41% of its assets in Adagio Medical shares.
ADGM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Adagio Medical | 0.73% | 2.41% | 96.87% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Medical Device Stocks | 35.88% | 10.92% | 53.20% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Perceptive advisors | 3.78M | 22.81% | $4.35M |
| Sio capital management | 1.29M | 7.77% | $1.48M |
| Adage capital partners gp | 1.26M | 7.59% | $1.45M |
| Alyeska investment group | 1.16M | 7.00% | $1.33M |
| Silverarc capital management | 251.97K | 1.52% | $289.77K |
| Rtw investments, lp | 209.36K | 1.36% | $406.16K |
| Shaolin capital management | 171.17K | 1.03% | $196.85K |
| Geode capital management | 125.24K | 0.76% | $144.03K |
| Vanguard group | 79.45K | 0.52% | $82.63K |
| Affinity asset advisors | 80.00K | 0.48% | $92.00K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Sio capital management | 1.29M | 0.21% | $1.48M |
| Perceptive advisors | 3.78M | 0.09% | $4.35M |
| Silverarc capital management | 251.97K | 0.03% | $289.77K |
| Shaolin capital management | 171.17K | 0.01% | $196.85K |
| Rtw investments, lp | 209.36K | 0.01% | $406.16K |
| Affinity asset advisors | 80.00K | 0.00% | $92.00K |
| Alyeska investment group | 1.16M | 0.00% | $1.33M |
| Opaleye management | 18.44K | 0.00% | $21.21K |
| Adage capital partners gp | 1.26M | 0.00% | $1.45M |
| Granite investment partners | 27.05K | 0.00% | $31.11K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Geode capital management | 125.24K | - | 56.90K |
| Vanguard fiduciary trust | 53.78K | - | 53.78K |
| Vanguard group | 79.45K | - | 46.37K |
| Granite investment partners | 27.05K | 0.00% | 27.05K |
| Renaissance | 16.56K | - | 16.56K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Perceptive advisors | 3.78M | 0.09% | -6.10M |
| Armistice capital | - | - | -478.00K |
| Hudson bay capital management lp | - | - | -296.37K |
| Silverarc capital management | 251.97K | 0.03% | -263.41K |
| Adar1 capital management | - | - | -76.76K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 53.78K | - | 53.78K | $61.85K |
| Granite investment partners | 27.05K | 0.00% | 27.05K | $31.11K |
| Jpmorgan chase | 975.00 | - | 975.00 | $1.05K |
Sold Out
| Holder | Change |
|---|---|
| Barclays | -14.00 |
| Ubs group | -83.00 |
| Hrt financial lp | -18.62K |
| Cresset asset management | -30.00K |
| Adar1 capital management | -76.76K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 5 | -76.19% | 120,944 | -99.27% | - | 0.01% | 4 | -75.00% | - | -100.00% |
| Dec 31, 2025 | 7 | -53.33% | 762,432 | -93.45% | 4 | 0.09% | 6 | 20.00% | - | -100.00% |
| Sep 30, 2025 | 15 | 15.38% | 11,638,540 | -2.05% | 75 | 1.27% | 5 | -37.50% | 4 | 33.33% |
| Jun 30, 2025 | 13 | -7.14% | 11,882,184 | 2.49% | 77 | 1.36% | 8 | 33.33% | 3 | 50.00% |
| Mar 31, 2025 | 14 | -6.67% | 11,593,031 | 7.33% | 75 | 1.43% | 6 | -33.33% | 2 | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Fidelity Extended Market Index | 91.78K | 0.41% | 40.44K |
| Vanguard Institutional Extnd Mkt Idx Tr | 91.51K | 0.41% | 55.90K |
| NT Ext Equity Mkt Index Fund - Lending | 21.60K | 0.10% | - |
| Northern Trust Extended Eq Market Idx | 21.60K | 0.10% | 21.60K |
| Spartan Extended Market Index Pool F | 11.61K | 0.05% | 11.43K |
| Fidelity Series Total Market Index | 10.40K | 0.05% | 1.17K |
| NT Ext Eq Mkt Idx Fd DC Lending Tier 5 | 8.52K | 0.04% | 59.00 |
| Spartan Total Market Index Pool G | 6.01K | 0.03% | - |
| Fidelity Nasdaq Composite Index | 5.44K | 0.02% | - |
| Vanguard Total Stock Mkt Idx Inv | 4.00K | 0.02% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Dec 16, 2025 | Kaster Deborah | Chief Financial Officer | Buy | $17.97K |
| Dec 12, 2025 | Usen Todd | Chief Executive Officer | Buy | $225.97K |
| Oct 20, 2025 | PERCEPTIVE ADVISORS LLC | Buy | $219.05 | |
| Oct 20, 2025 | PERCEPTIVE ADVISORS LLC | Buy | $2.30M | |
| Oct 20, 2025 | PERCEPTIVE ADVISORS LLC | Buy | $2.30M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | 6 | - |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | - |
ADGM Ownership FAQ
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