Filing Manager
JANUS HENDERSON GROUP PLC
Reporting Manager
JANUS HENDERSON GROUP PLC
Symbol
MIRM
Shares outstanding
51,400,915 shares
Disclosed Ownership
6,065,308 shares
Ownership
12%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 16:33:36 UTC
Date of event
31 Dec 2025
Previous filing
05 Dec 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
JANUS HENDERSON GROUP PLC 12% 6,065,308 0 6,065,308 Kristin Mariani Head of North America Compliance