SCHEDULE 13G: Adage Capital Management Discloses 5.22% Stake in Centessa Pharmaceuticals plc

Sentiment:

Beneficial Ownership Report


Adage Capital Management, L.P., along with Robert Atchinson and Phillip Gross, has disclosed a 5.22% beneficial ownership stake in Centessa Pharmaceuticals plc, totaling 6,954,000 ordinary shares.

Summary

  • Adage Capital Management, L.P., Robert Atchinson, and Phillip Gross (collectively, the "Reporting Persons") have filed a Schedule 13G indicating beneficial ownership in Centessa Pharmaceuticals plc.
  • The Reporting Persons collectively beneficially own 6,954,000 ordinary shares of Centessa Pharmaceuticals plc.
  • This ownership represents 5.22% of the total outstanding ordinary shares of the company.
  • The calculation of the percentage is based on 133,184,349 ordinary shares outstanding as of March 10, 2025, as reported in Centessa's Annual Report on Form 10-K filed on March 24, 2025.
  • Adage Capital Management, L.P. is a Delaware limited partnership, while Robert Atchinson and Phillip Gross are citizens of the United States.
  • The Reporting Persons hold shared voting and shared dispositive power over all 6,954,000 shares.
  • The shares are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.

Sentiment

Score: 6

Explanation: The disclosure of a significant beneficial ownership stake by a reputable investment firm like Adage Capital Management can be interpreted as a mildly positive signal of confidence in the issuer, Centessa Pharmaceuticals plc, by a major institutional player.

Positives

  • A significant institutional investor, Adage Capital Management, L.P., has taken a substantial 5.22% stake in Centessa Pharmaceuticals plc, which may signal confidence in the company's future prospects and strategic direction.

Future Outlook

NA

Industry Context

This filing indicates a significant institutional investment in the biotechnology/pharmaceutical sector, a common activity for large investment funds seeking exposure to specific companies or therapeutic areas. The disclosure of a new substantial shareholder can be a point of interest for market participants tracking investment trends within the industry.

Stakeholder Impact

  • Shareholders: The disclosure of a new significant institutional shareholder may increase investor confidence and potentially influence trading activity and market perception of Centessa Pharmaceuticals plc.

Key Dates

DateDescription
03/10/2025Date as of which 133,184,349 Ordinary Shares were outstanding, used for percentage calculation.
03/24/2025Date Centessa Pharmaceuticals plc filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2024.
03/31/2025Date of event which requires the filing of this Schedule 13G statement.
05/12/2025Date the Schedule 13G statement was signed and filed by the Reporting Persons.

Keywords

Centessa Pharmaceuticals, Adage Capital Management, beneficial ownership, Schedule 13G, institutional investment, ordinary shares, ADSs, CNTA

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