Janus Henderson Group Plc - Jun 30, 2025 SCHEDULE 13G/A Report for MEREO BIOPHARMA GROUP PLC American Depositary Shares (MREO)

Filing Manager
JANUS HENDERSON GROUP PLC
Reporting Manager
JANUS HENDERSON GROUP PLC
Security
MEREO BIOPHARMA GROUP PLC American Depositary Shares
Symbol
MREO
Shares outstanding
159M shares
Disclosed Ownership
17.7M shares
Ownership
11.1%
Form type
SCHEDULE 13G/A
Date filed
8/14/2025, 11:15 AM
Date of event
Jun 30, 2025
Previous filing
May 14, 2025
SEC
View on sec.gov

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
JANUS HENDERSON GROUP PLC 11.1% 17.7M 0 17.7M Kristin Mariani Head of North America Compliance, CCO
Janus Henderson Biotech Innovation Master Fund Ltd 9.6% 15.2M 0 15.2M Kristin Mariani Head of North America Compliance, CCO