SCHEDULE: Adage Capital Discloses 6.88% Stake in Adagio Medical
Beneficial Ownership Report
Adage Capital Management, L.P. and its principals reported a 6.88% beneficial ownership stake in Adagio Medical Holdings, Inc. as of September 30, 2025.
Summary
- Adage Capital Management, L.P., along with Robert Atchinson and Phillip Gross, collectively reported beneficial ownership of 1,058,501 shares of Adagio Medical Holdings, Inc. Common Stock.
- This ownership represents 6.88% of the company's outstanding Common Stock.
- The percentage is calculated based on 15,381,565 shares of Common Stock outstanding as of August 11, 2025, as reported in Adagio Medical's Quarterly Report on Form 10-Q for the period ended June 30, 2025.
- The shares are held with shared voting power and shared dispositive power for all reporting persons.
- The filing is an Amendment No. 1 to a Schedule 13G, indicating a change from a previous filing.
Sentiment
Score: 5
Explanation: The filing is a factual disclosure of beneficial ownership and does not inherently convey positive or negative sentiment regarding the issuer's performance or prospects. It is a neutral regulatory update.
Positives
- NA
Negatives
- NA
Risks
- NA
Future Outlook
NA
Industry Context
This filing reflects a significant institutional investment firm's stake in Adagio Medical Holdings, Inc., a company operating in the medical device or healthcare sector. Such disclosures are routine for large investors and provide transparency into major ownership positions, which can sometimes signal investor confidence or strategic interest in the company's market segment.
Comparison to Industry Standards
- NA
Stakeholder Impact
- Shareholders: Provides transparency regarding a significant institutional investor's stake, which can influence market perception and trading activity.
- Company Management: Awareness of a major shareholder's position, though the filing states the shares are not held for the purpose of changing or influencing control.
Key Dates
| Date | Description |
|---|---|
| 2025-08-11 | Date as of which 15,381,565 shares of Common Stock were outstanding, as reported in the Company's Form 10-Q. |
| 2025-08-14 | Date Adagio Medical Holdings, Inc. filed its Quarterly Report on Form 10-Q for the period ended June 30, 2025. |
| 2025-09-30 | Date of event which requires the filing of this statement (reporting period end date for ownership). |
| 2025-11-13 | Date the Schedule 13G Amendment No. 1 was signed and filed. |
Keywords
Adagio Medical Holdings, Adage Capital Management, Beneficial Ownership, Schedule 13G, Institutional Ownership, Common Stock, Investment Management, Equity Stake
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