Capital International Investors - 30 Sep 2025 SCHEDULE 13G/A Report for ATI Inc. Common Stock (ATI)

Reporting Manager
Capital International Investors
Symbol
ATI
Shares outstanding
137,800,492 shares
Disclosed Ownership
17,638,463 shares
Ownership
13%
Form type
SCHEDULE 13G/A
Filing time
13 Nov 2025, 11:04:42 UTC
Date of event
30 Sep 2025
Previous filing
14 Feb 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Capital International Investors 13% 17,638,463 17,610,082 0 Aaron Espin Senior Vice President