Adage Capital Management, L.P. - 30 Jun 2025 SCHEDULE 13G Report for Adagio Medical Holdings, Inc. Common Stock, par value $0.0001 per share (ADGM)

Filing Manager
Adage Capital Management, L.P.
Reporting Manager
Adage Capital Management, L.P.
Security
Adagio Medical Holdings, Inc. Common Stock, par value $0.0001 per share
Symbol
ADGM
Shares outstanding
15,379,419 shares
Disclosed Ownership
821,261 shares
Ownership
5.3%
Form type
SCHEDULE 13G
Filing time
12 Aug 2025, 09:06:21 UTC
Date of event
30 Jun 2025
Next filing
13 Nov 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Adage Capital Management, L.P. disclosed 5.3% ownership in Adagio Medical Holdings, Inc. Common Stock, par value $0.0001 per share (ADGM) on 30 Jun 2025."

Quick Takeaways

  • Adage Capital Management, L.P. filed SCHEDULE 13G for Adagio Medical Holdings, Inc. Common Stock, par value $0.0001 per share (ADGM).
  • Disclosed ownership: 5.3%.
  • Date of event: 30 Jun 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 12 Aug 2025, 09:06.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Adage Capital Management, L.P. 5.3% 821,261 0 821,261 /s/ Robert Atchinson By: Adage Capital Partners LLC, its General Partner, By: Robert Atchinson, its Managing Member
Robert Atchinson 5.3% 821,261 0 821,261 /s/ Robert Atchinson Robert Atchinson, individually
Phillip Gross 5.3% 821,261 0 821,261 /s/ Phillip Gross Phillip Gross, individually

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