Filing Manager
BERKLEY W R CORP
Reporting Manager
W. R. Berkley Corporation
Symbol
MACI
Shares outstanding
16,083,130 shares
Disclosed Ownership
868,489 shares
Ownership
5.4%
Form type
SCHEDULE 13G
Filing time
11 Feb 2026, 16:09:24 UTC
Date of event
31 Dec 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
W. R. Berkley Corporation 5.4% 868,489 0 868,489 /s/ Richard M. Baio Richard M. Baio/Executive Vice President and Chief Financial Officer
Berkley Insurance Company 5.4% 868,489 0 868,489 /s/ Richard M. Baio Richard M. Baio/Executive Vice President and Treasurer