Reporting Manager
Altai Capital Management, L.P.
Symbol
OSUR
Shares outstanding
73.1M shares
Disclosed Ownership
3.75M shares
Ownership
5.13%
Form type
SCHEDULE 13D
Date filed
9/9/2025, 08:00 AM
Date of event
Sep 2, 2025

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Altai Capital Management, L.P. 5.13% 3.75M 0 3.75M /s/ Rishi Bajaj Rishi Bajaj, Authorized Signatory 0001478982
Altai Capital Management, LLC 5.13% 3.75M 0 3.75M /s/ Rishi Bajaj Rishi Bajaj, Authorized Signatory 0001619440
Rishi Bajaj 5.13% 3.75M 0 3.75M /s/ Rishi Bajaj Rishi Bajaj, Individually 0001619438