SCHEDULE: Adage Capital Management Files Schedule 13G

Adage Capital Management, L.P. and associated individuals have filed a Schedule 13G, reporting their beneficial ownership of Centessa Pharmaceuticals plc.

Summary

• This filing is an amendment to a Schedule 13G, indicating a change in beneficial ownership reporting for Centessa Pharmaceuticals plc.
• The reporting persons are Adage Capital Management, L.P. (ACM), Robert Atchinson, and Phillip Gross.
• They are reporting on Ordinary Shares of Centessa Pharmaceuticals plc, which are represented by American Depositary Shares (ADSs).
• The filing states that the aggregate amount beneficially owned by each reporting person is 0.00, representing 0% of the class of securities.
• The date of the event requiring this filing is June 30, 2026.

Sentiment

Score: 2

Explanation: StockSavvy.ai views this as a neutral filing, primarily a routine disclosure of beneficial ownership changes with no significant new financial or strategic information.

Negatives

• The filing indicates zero shares beneficially owned by the reporting persons, suggesting a complete divestment or no current holdings.

Future Outlook

No forward-looking statements or guidance are provided in this filing.

Management Comments

• The filing includes a certification stating that the securities were acquired and are held in the ordinary course of business and were not acquired or held for the purpose of or with the effect of changing or influencing the control of the issuer.

Industry Context

StockSavvy.ai notes that Schedule 13G filings are routine disclosures for institutional investors and investment managers who acquire beneficial ownership of more than 5% of a class of a company's registered equity securities. This filing, however, reports 0% ownership, indicating a lack of significant stake by Adage Capital Management.

Key Dates

Keywords

Centessa Pharmaceuticals, Schedule 13G, Beneficial Ownership, Adage Capital Management, ADSs, Ordinary Shares