<SUBMISSION>
<SECRELEASE-DATETIME> 20230609-112259 ⇐ Metadata from SEC Info (ET)
<SECWEBSITE-DATETIME> 20230609-112258 ⇐ Metadata from SEC Info (ET)
<ACCEPTANCE-DATETIME> 20230609-112223 ⇐ Filing accepted by SEC (ET)
<ACCESSION-NUMBER> 0001628280-23-021652
<TYPE> 11-K
<PUBLIC-DOCUMENT-COUNT> 2
<PERIOD> 20221231
<FILING-DATE> 20230609
<DATE-OF-FILING-DATE-CHANGE> 20230609
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<FILER>
<COMPANY-DATA>
<CONFORMED-NAME> ATI INC
<CIK> 0001018963
<ASSIGNED-SIC> 3317
<IRS-NUMBER> 251792394 ⇒ 25-1792394
<STATE-OF-INCORPORATION> DE
<FISCAL-YEAR-END> 1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE> 11-K
<ACT> 34
<FILE-NUMBER> 001-12001
<FILM-NUMBER> 231004290
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1> 2021 MCKINNEY AVENUE
<CITY> DALLAS
<STATE> TX
<ZIP> 75201
<PHONE> 4123942800
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1> 2021 MCKINNEY AVENUE
<CITY> DALLAS
<STATE> TX
<ZIP> 75201
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME> ALLEGHENY TECHNOLOGIES INC
<DATE-CHANGED> 19991213
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME> ALLEGHENY TELEDYNE INC
<DATE-CHANGED> 19960716
</FORMER-COMPANY>
</FILER>
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<DOCUMENT>
<TYPE> 11-K
<SEQUENCE> 1
<FILENAME> fy202211katiretirementplan.htm
<DESCRIPTION> 11-K
<TEXT>
Show <TEXT>: 4 lines (widest: 168,807 characters) - 166K bytes
</TEXT>
</DOCUMENT>
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<DOCUMENT>
<TYPE> EX-23.1
<SEQUENCE> 2
<FILENAME> fy202211-katiretirementpla.htm
<DESCRIPTION> EX-23.1
<TEXT>
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</TEXT>
</DOCUMENT>
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</SUBMISSION> |
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