ADGM · Adagio Medical Holdings, Inc. · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“As of the report date, we do not believe our existing cash and cash equivalents are sufficient to fund our operating and capital expenditure requirements for at least 12 months from the date of issuance of the audited consolidated financial statements included in this Report. Based on our current research and development plans, we expect to have sufficient resources to fund our planned operations into the fourth quarter of 2026. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our capital resources sooner than expected. No assurance can be given as to whether additional needed financing will be available on terms acceptable to us, if at all. If sufficient funds on acceptable terms are not available when needed, we may be required to suspend or forego certain planned activities. Failure to manage discretionary spending or raise additional financing, as needed, could adversely impact our ability to achieve our intended business objectives and may have an adverse effect on our results of operations and future prospects. These factors raise substantial doubt about our ability to continue as a going concern for the twelve-month period from the date of this filing with the SEC.”View the 10-Q filed Aug 11, 2026
Every disclosed holder of ADGM in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns ADGM
13F quarter Jun 30, 2026| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 15,073,019 | 67.86% |
| Insiders (Forms 3, 4, 5) | 222,315 | 1.00% |
| 13D/G-only blocks | 1,200,000 | 5.40% |
| Remaining | 5,715,125 | 25.73% |
| Registered funds (N-PORT, not summed) | 191,759 | 0.86% |
Shares outstanding: 22,210,459, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of ADGM
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
PERCEPTIVE ADVISORS LLC
13F
CIK 1224962 · Registered investment adviser · Jun 30, 2026
|
9,876,586 | ||
| 1.1 |
|
9,876,586 | ||
| 2 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
|
1,258,501 | ||
| 3 |
ADAR1 Capital Management, LLC
13F
CIK 1940272 · Registered investment adviser · Jun 30, 2026
|
1,205,447 | ||
| 3.1 |
ADAR1 Capital Management, LLC
13G
CIK 1940272 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,205,447 | ||
| 4 |
RA CAPITAL MANAGEMENT, L.P.
13G
CIK 1346824 · Registered investment adviser · Jun 30, 2025
Rule 13d-1(c), passive investor
|
1,200,000 | ||
| 5 |
Alyeska Investment Group, L.P.
13F
CIK 1453072 · Registered investment adviser · Jun 30, 2026
|
1,159,615 | ||
| 6 |
Sio Capital Management, LLC
13F
CIK 1482416 · Investment adviser · Jun 30, 2026
|
698,989 | ||
| 6.1 |
Sio Capital Management, LLC
13G
CIK 1482416 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
698,989 | ||
| 7 |
SILVERARC CAPITAL MANAGEMENT, LLC
13F
CIK 1816307 · Registered investment adviser · Jun 30, 2026
|
224,360 | ||
| 8 |
|
207,315 | ||
| 9 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
|
171,170 | ||
| 10 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
|
108,954 | ||
| 11 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
91,512 | ||
| 12 |
Affinity Asset Advisors, LLC
13F
CIK 1773195 · Registered investment adviser · Jun 30, 2026
|
80,000 | ||
| 13 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
|
79,115 | ||
| 14 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
66,969 | ||
| 15 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
|
53,782 | ||
| 16 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
|
30,875 | ||
| 17 |
TORONTO DOMINION BANK
13F
CIK 947263 · Bank · Jun 30, 2026
|
25,000 | ||
| 18 |
Opaleye Management Inc.
13F
CIK 1595855 · Registered investment adviser · Jun 30, 2026
|
18,444 | ||
| 19 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
|
18,153 | ||
| 20 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
17,442 | ||
| 21 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
|
16,155 | ||
| 22 |
|
15,000 | ||
| 23 |
HRT FINANCIAL LP
13F
CIK 1475597 · Unknown · Jun 30, 2026
|
13,705 | ||
| 24 |
CITIGROUP INC
13F
CIK 831001 · Bank · Jun 30, 2026
|
13,255 | ||
| 25 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
|
11,531 | ||
| 26 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
10,400 | ||
| 27 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Jun 30, 2026
|
6,454 | ||
| 28 |
Fidelity Nasdaq Composite Index Fund
Fund
S000055366 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
5,436 | ||
| 29 |
UBS Group AG
13F
CIK 1610520 · Bank · Jun 30, 2026
|
2,268 | ||
| 30 |
Crewe Advisors LLC
13F
CIK 1730033 · Registered investment adviser · Jun 30, 2026
|
500 | ||
| 31 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
|
137 | ||
| 32 |
BARCLAYS PLC
13F
CIK 312069 · Bank · Jun 30, 2026
|
23 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.