Capital World Investors - Sep 30, 2025 SCHEDULE 13G Report for ATI Inc. Common Stock (ATI)

Filing Manager
Capital World Investors
Reporting Manager
Capital World Investors
Symbol
ATI
Shares outstanding
139M shares
Disclosed Ownership
7.91M shares
Ownership
5.7%
Form type
SCHEDULE 13G
Date filed
11/13/2025, 07:06 PM
Date of event
Sep 30, 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Capital World Investors 5.7% 7.91M 7.91M 0 Timothy J. Moon Vice President and Senior Counsel, Capital Research and Management Company