Filing Manager
JANUS HENDERSON GROUP PLC
Reporting Manager
JANUS HENDERSON GROUP PLC
Symbol
MIRM
Shares outstanding
51.4M shares
Disclosed Ownership
5.45M shares
Ownership
10.6%
Form type
SCHEDULE 13G/A
Filing time
05 Dec 2025, 12:46:09 UTC
Date of event
28 Nov 2025
Previous filing
14 Nov 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
JANUS HENDERSON GROUP PLC 10.6% 5.45M 0 5.45M Kristin Mariani Head of North America Compliance, CCO