<SEC-DOCUMENT>0001193125-22-123468-index.html : 20220427
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<ACCEPTANCE-DATETIME>20220427154900
ACCESSION NUMBER:		0001193125-22-123468
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20220427
DATE AS OF CHANGE:		20220427

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLEGHENY TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001018963
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL PIPE & TUBES [3317]
		IRS NUMBER:				251792394
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12001
		FILM NUMBER:		22859337

	BUSINESS ADDRESS:	
		STREET 1:		1000 SIX PPG PLACE
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		4123942800

	MAIL ADDRESS:	
		STREET 1:		100 SIX PPG PLACE
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGHENY TELEDYNE INC
		DATE OF NAME CHANGE:	19960716
</SEC-HEADER>
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Document 1 - file: d283258ddefa14a.htm

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Document 2 - file: g283258g01h03.jpg

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Document 3 - file: g283258g01h04.jpg

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<TEXT>
Document 4 - file: g283258g01h06.jpg

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Document 5 - file: g283258g01h07.jpg

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Document 6 - file: g283258g02h07.jpg

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<TEXT>
Document 7 - file: g283258g0427122951913.jpg

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Document 8 - file: g283258g0427122953707.jpg

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