Reporting Manager
Dimensional Fund Advisors LP
Symbol
OSUR
Shares outstanding
72,725,200 shares
Disclosed Ownership
3,636,260 shares
Ownership
5%
Form type
SCHEDULE 13G/A
Filing time
09 Oct 2025, 13:48:12 UTC
Date of event
30 Sep 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Dimensional Fund Advisors LP 5% 3,636,260 3,560,315 0 Selwyn Notelovitz Global Chief Compliance Officer