<SEC-DOCUMENT>0000897069-18-000110-index.html : 20180212
<SEC-HEADER>0000897069-18-000110.hdr.sgml : 20180212
<ACCEPTANCE-DATETIME>20180212101219
ACCESSION NUMBER:		0000897069-18-000110
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180212
DATE AS OF CHANGE:		20180212

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-46715
		FILM NUMBER:		18594450

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WS MANAGEMENT LLLP
		CENTRAL INDEX KEY:			0000877338
		IRS NUMBER:				592844344
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		4306 PABLO OAKS COURT
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32224
		BUSINESS PHONE:		9043559989

	MAIL ADDRESS:	
		STREET 1:		4306 PABLO OAKS COURT
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32224

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WS MANAGEMENT LLP
		DATE OF NAME CHANGE:	20021105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WATER STREET CAPITAL INC
		DATE OF NAME CHANGE:	19990407
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>sb005.htm
<DESCRIPTION>SCH 13G ATI AMENDMENT 3
<TEXT>
Document 1 - file: sb005.htm

</DOCUMENT>
</SEC-DOCUMENT>