Reporting Manager
Altai Capital Management, L.P.
Symbol
OSUR
Shares outstanding
71,801,075 shares
Disclosed Ownership
3,740,836 shares
Ownership
5.2%
Form type
SCHEDULE 13D/A
Filing time
15 Jan 2026, 08:45:24 UTC
Date of event
15 Jan 2026
Previous filing
17 Dec 2025

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Altai Capital Management, L.P. 5.2% 3,740,836 0 3,740,836 /s/ Rishi Bajaj Rishi Bajaj, Authorized Signatory 0001478982
Altai Capital Management, LLC 5.2% 3,740,836 0 3,740,836 /s/ Rishi Bajaj Rishi Bajaj, Authorized Signatory 0001619440
Rishi Bajaj 5.2% 3,740,836 0 3,740,836 /s/ Rishi Bajaj Rishi Bajaj, Individually 0001619438