Adagio Medical Holdings Inc. (ADGM) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-08-14
5:04 pm
Unchanged
2026-06-3013GADAGIO MED INC
ADGM
ADAR1 Capital Management LLC1,205,447
5.400%
0
(Unchanged)
Filing
History
2026-07-28
4:49 pm
Sale
2026-06-3013GADAGIO MED INC
ADGM
Sio Capital Management, LLC698,989
3.150%
-589,472decrease
(-45.75%)
Filing
History
2026-05-15
4:00 pm
Unchanged
2026-03-3113GADAGIO MED INC
ADGM
Perceptive Advisors LLC15,321,655
55.400%
0
(Unchanged)
Filing
History
2026-05-13
09:00 am
Purchase
2026-03-3113GADAGIO MED INC
ADGM
Adage Capital Management, L.P.1,258,501
5.670%
200,000increase
(+18.89%)
Filing
History
2026-02-17
8:13 pm
Purchase
2025-12-3113GADAGIO MED INC
ADGM
ADAR1 Capital Management LLC1,205,447
5.700%
1,205,447increase
(New Position)
Filing
History
2026-02-17
4:32 pm
Purchase
2025-12-3113GADAGIO MED INC
ADGM
Alyeska Investment Group, L.P.2,096,784
9.900%
2,096,784increase
(New Position)
Filing
History
2026-02-17
4:00 pm
Unchanged
2025-12-3113GADAGIO MED INC
ADGM
Perceptive Advisors LLC15,321,655
57.500%
0
(Unchanged)
Filing
History
2026-02-11
4:39 pm
Purchase
2025-12-3113GADAGIO MED INC
ADGM
Sio Capital Management, LLC1,288,461
6.080%
1,288,461increase
(New Position)
Filing
History
2025-11-13
09:04 am
Purchase
2025-09-3013GADAGIO MED INC
ADGM
Adage Capital Management, L.P.1,058,501
6.880%
237,240increase
(+28.89%)
Filing
History
2025-08-26
4:59 pm
Purchase
2025-06-3013GADAGIO MED INC
ADGM
RA Capital Management, L.P.1,200,000
7.200%
1,200,000increase
(New Position)
Filing
History
2025-08-14
5:53 pm
Sale
2025-06-3013GADAGIO MED INC
ADGM
RA Capital Management, L.P.0
0.000%
-1,200,000decrease
(Position Closed)
Filing
History
2025-08-12
09:06 am
Purchase
2025-06-3013GADAGIO MED INC
ADGM
Adage Capital Management, L.P.821,261
5.340%
821,261increase
(New Position)
Filing
History
2025-05-15
4:48 pm
Sale
2025-03-3113GADAGIO MED INC
ADGM
RA Capital Management, L.P.1,200,000
7.200%
-413,220decrease
(-25.61%)
Filing
History
2025-02-14
6:31 pm
Purchase
2024-12-3113GADAGIO MED INC
ADGM
RA Capital Management, L.P.1,613,220
9.900%
275,407increase
(+20.59%)
Filing
History
2025-02-14
4:15 pm
Purchase
2024-12-3113GADAGIO MED INC
ADGM
Perceptive Advisors LLC15,321,655
73.600%
64,167increase
(+0.42%)
Filing
History
2024-11-13
4:30 pm
Purchase
2024-09-3013GADAGIO MED INC
ADGM
Perceptive Advisors LLC15,257,488
76.400%
15,257,488increase
(New Position)
Filing
History
2024-08-12
4:22 pm
Purchase
2024-07-3113GADAGIO MED INC
ADGM
RA Capital Management, L.P.1,337,813
9.990%
1,337,813increase
(New Position)
Filing
History