Reporting Manager
Mawer Investment Management Ltd.
Symbol
OSIS
Shares outstanding
16.8M shares
Disclosed Ownership
856K shares
Ownership
5.09%
Form type
SCHEDULE 13G
Date filed
11/12/2025, 11:37 AM
Date of event
Sep 30, 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Mawer Investment Management Ltd. 5.09% 856K 856K 0 /s/ John Wilson John Wilson, Portfolio Manager