Filing Manager
THOMAS A. SATTERFIELD JR
Reporting Manager
Thomas A. Satterfield, Jr.
Symbol
OSTX
Shares outstanding
33.1M shares
Disclosed Ownership
3.12M shares
Ownership
9.4%
Form type
SCHEDULE 13G/A
Filing time
13 Aug 2025, 16:05:19 UTC
Date of event
30 Jun 2025
Previous filing
12 Feb 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Thomas A. Satterfield, Jr. 9.4% 3.12M 297K 2.82M /s/ Thomas A. Satterfield, Jr. Thomas A. Satterfield, Jr.