Adage Capital Management, L.P. - 31 Mar 2025 SCHEDULE 13G/A Report for Mereo BioPharma Group plc Ordinary Shares, nominal value 0.003 GBP per share (MREO)

Filing Manager
Adage Capital Management, L.P.
Reporting Manager
Adage Capital Management, L.P.
Security
Mereo BioPharma Group plc Ordinary Shares, nominal value 0.003 GBP per share
Symbol
MREO
Shares outstanding
794,745,794 shares
Disclosed Ownership
8,503,780 shares
Ownership
1.1%
Form type
SCHEDULE 13G/A
Filing time
12 May 2025, 09:01:07 UTC
Date of event
31 Mar 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Adage Capital Management, L.P. 1.1% 8,503,780 0 8,503,780 /s/ Robert Atchinson By: Adage Capital Partners LLC, its General Partner, By: Robert Atchinson, its Managing Member
Robert Atchinson 1.1% 8,503,780 0 8,503,780 /s/ Robert Atchinson Robert Atchinson, individually
Phillip Gross 1.1% 8,503,780 0 8,503,780 /s/ Phillip Gross Phillip Gross, individually