LAGUNA HILLS, CA
ADAGIO MEDICAL HOLDINGS, INC.ADGM— Latest position per institution from SEC 13F filings
15
Institutional holders
17.42M
Total shares held
14.60M
Estimated value
871.18K
Avg. position size
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
9.88M
Value
6.44M
Filed
Jun 30, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
1.33M
Value
3.44M
Filed
Sep 30, 2024
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 1165408
Shares
1.26M
Value
820.04K
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
1.21M
Value
785.47K
Filed
Jun 30, 2026
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
1.16M
Value
755.61K
Filed
Jun 30, 2026
SIO CAPITAL MANAGEMENT, LLC
CIK 1482416
Shares
698.99K
Value
455.46K
Filed
Jun 30, 2026
ARMISTICE CAPITAL, LLC
CIK 1601086
Shares
478K
Value
497.12K
Filed
Dec 31, 2025
HUDSON BAY CAPITAL MANAGEMENT LP
CIK 1393825
Shares
296.37K
Value
308.22K
Filed
Dec 31, 2025
SILVERARC CAPITAL MANAGEMENT, LLC
CIK 1816307
Shares
224.36K
Value
146.19K
Filed
Jun 30, 2026
RTW INVESTMENTS, LP
CIK 1493215
Shares
209.36K
Value
406.16K
Filed
Sep 30, 2025
SHAOLIN CAPITAL MANAGEMENT LLC
CIK 1766806
Shares
171.17K
Value
111.53K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
108.95K
Value
71.04K
Filed
Jun 30, 2026
AFFINITY ASSET ADVISORS, LLC
CIK 1773195
Shares
80K
Value
52.13K
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
79.45K
Value
82.63K
Filed
Dec 31, 2025
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
79.11K
Value
51.55K
Filed
Jun 30, 2026
VANGUARD FIDUCIARY TRUST CO
CIK 933478
Shares
53.78K
Value
35.07K
Filed
Jun 30, 2026
NORTHERN TRUST CORP
CIK 73124
Shares
30.88K
Value
20.12K
Filed
Jun 30, 2026
GRANITE INVESTMENT PARTNERS, LLC
CIK 1542266
Shares
27.05K
Value
31.11K
Filed
Mar 31, 2026
COWEN AND COMPANY, LLC
CIK 48966
Shares
27K
Value
69.66K
Filed
Sep 30, 2024
TORONTO DOMINION BANK
CIK 947263
Shares
25K
Value
16.30K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | PERCEPTIVE ADVISORS LLC | 1224962 | 9.88M | 6.44M | Jun 30, 2026 |
| 2 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 1.33M | 3.44M | Sep 30, 2024 |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | 1.26M | 820.04K | Jun 30, 2026 |
| 4 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 1.21M | 785.47K | Jun 30, 2026 |
| 5 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 1.16M | 755.61K | Jun 30, 2026 |
| 6 | SIO CAPITAL MANAGEMENT, LLC | 1482416 | 698.99K | 455.46K | Jun 30, 2026 |
| 7 | ARMISTICE CAPITAL, LLC | 1601086 | 478K | 497.12K | Dec 31, 2025 |
| 8 | HUDSON BAY CAPITAL MANAGEMENT LP | 1393825 | 296.37K | 308.22K | Dec 31, 2025 |
| 9 | SILVERARC CAPITAL MANAGEMENT, LLC | 1816307 | 224.36K | 146.19K | Jun 30, 2026 |
| 10 | RTW INVESTMENTS, LP | 1493215 | 209.36K | 406.16K | Sep 30, 2025 |
| 11 | SHAOLIN CAPITAL MANAGEMENT LLC | 1766806 | 171.17K | 111.53K | Jun 30, 2026 |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 108.95K | 71.04K | Jun 30, 2026 |
| 13 | AFFINITY ASSET ADVISORS, LLC | 1773195 | 80K | 52.13K | Jun 30, 2026 |
| 14 | VANGUARD GROUP INC | 102909 | 79.45K | 82.63K | Dec 31, 2025 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 79.11K | 51.55K | Jun 30, 2026 |
| 16 | VANGUARD FIDUCIARY TRUST CO | 933478 | 53.78K | 35.07K | Jun 30, 2026 |
| 17 | NORTHERN TRUST CORP | 73124 | 30.88K | 20.12K | Jun 30, 2026 |
| 18 | GRANITE INVESTMENT PARTNERS, LLC | 1542266 | 27.05K | 31.11K | Mar 31, 2026 |
| 19 | COWEN AND COMPANY, LLC | 48966 | 27K | 69.66K | Sep 30, 2024 |
| 20 | TORONTO DOMINION BANK | 947263 | 25K | 16.30K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.