0001959173-24-000114.txt : 20240104 0001959173-24-000114.hdr.sgml : 20240104 20240104113923 ACCESSION NUMBER: 0001959173-24-000114 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240104 DATE AS OF CHANGE: 20240104 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ATI INC CENTRAL INDEX KEY: 0001018963 STANDARD INDUSTRIAL CLASSIFICATION: STEEL PIPE & TUBES [3317] ORGANIZATION NAME: 04 Manufacturing IRS NUMBER: 251792394 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-12001 FILM NUMBER: 24510612 BUSINESS ADDRESS: STREET 1: 2021 MCKINNEY AVENUE CITY: DALLAS STATE: TX ZIP: 75201 BUSINESS PHONE: 4123942800 MAIL ADDRESS: STREET 1: 2021 MCKINNEY AVENUE CITY: DALLAS STATE: TX ZIP: 75201 FORMER COMPANY: FORMER CONFORMED NAME: ALLEGHENY TECHNOLOGIES INC DATE OF NAME CHANGE: 19991213 FORMER COMPANY: FORMER CONFORMED NAME: ALLEGHENY TELEDYNE INC DATE OF NAME CHANGE: 19960716 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Davis Elliot S CENTRAL INDEX KEY: 0001520037 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 1000 SIX PPG PLACE CITY: PITTSBURGH STATE: PA ZIP: 15222-5479 144 1 primary_doc.xml 144 0001520037 XXXXXXXX LIVE 0001018963 ATI INC 001-12001 2021 MCKINNEY AVENUE DALLAS TX 75201 4123942800 Davis Elliot S Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

1786 76905.16 127577212 01/04/2024 NYSE Common 01/03/2024 Restricted Stock Vesting Issuer N 1786 01/03/2024 Compensation Y 01/04/2024 09/14/2023 /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Elliot S Davis