Current statusNasdaq haltedNASDAQ
Halt began09/12/202512:24:23 ET
Halt codesT12NASDAQ
Documented events
Timeline
OST was halted on 09/12/2025 at 12:24:23 ET under T12.- Nasdaq notice ↗Nasdaq trading halt
Nasdaq halted OST at 12:24:23 ET while requesting additional information from the company.
- SEC 6-K ↗Company update
Ostin said Nasdaq requested information connected to a DOJ indictment and that an independent special committee would investigate.
- SEC 20-F ↗Company annual report
Ostin said the internal investigation and Nasdaq review were ongoing and gave no assurance that trading would resume.