Reporting Manager
Dimensional Fund Advisors LP
Symbol
OSUR
Shares outstanding
72.7M shares
Disclosed Ownership
3.64M shares
Ownership
5%
Form type
SCHEDULE 13G/A
Date filed
10/9/2025, 01:48 PM
Date of event
Sep 30, 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Dimensional Fund Advisors LP 5% 3.64M 3.56M 0 Selwyn Notelovitz Global Chief Compliance Officer