Reporting Manager
American Century Investment Management, Inc.
Symbol
OGS
Shares outstanding
60.2M shares
Disclosed Ownership
3.97M shares
Ownership
6.6%
Form type
SCHEDULE 13G/A
Date filed
5/15/2025, 10:53 AM
Date of event
Mar 31, 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
American Century Capital Portfolios, Inc. 4.4% 2.62M 2.62M American Century Capital Portfolios, Inc. /s/ John Pak / Senior Vice President
American Century Investment Management, Inc. 6.6% 3.97M 3.82M American Century Investment Management, Inc. /s/ John Pak / Senior Vice President
American Century Companies, Inc. 6.6% 3.97M 3.82M American Century Companies, Inc. /s/ John Pak / Senior Vice President
Stowers Institute for Medical Research 6.6% 3.97M 3.82M Stowers Institute for Medical Research /s/ Joselyn Verschelden / Authorized Signer