Reporting Manager
American Century Investment Management, Inc.
Symbol
OGS
Shares outstanding
60,188,061 shares
Disclosed Ownership
3,972,412 shares
Ownership
6.6%
Form type
SCHEDULE 13G/A
Filing time
15 May 2025, 10:53:32 UTC
Date of event
31 Mar 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
American Century Capital Portfolios, Inc. 4.4% 2,617,238 2,617,238 American Century Capital Portfolios, Inc. /s/ John Pak / Senior Vice President
American Century Investment Management, Inc. 6.6% 3,972,412 3,819,173 American Century Investment Management, Inc. /s/ John Pak / Senior Vice President
American Century Companies, Inc. 6.6% 3,972,412 3,819,173 American Century Companies, Inc. /s/ John Pak / Senior Vice President
Stowers Institute for Medical Research 6.6% 3,972,412 3,819,173 Stowers Institute for Medical Research /s/ Joselyn Verschelden / Authorized Signer