Filing Manager
HSIAO TZU-KAI
Reporting Manager
HSIAO TZU-KAI
Symbol
OST
Shares outstanding
107M shares
Disclosed Ownership
2.88M shares
Ownership
2.68%
Form type
SCHEDULE 13G/A
Filing time
13 Jun 2025, 16:00:16 UTC
Date of event
09 Jun 2025
Previous filing
29 May 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
HSIAO TZU-KAI 2.68% 2.88M 2.88M 0 /s/ HSIAO TZU-KAI HSIAO TZU-KAI