<SEC-DOCUMENT>0001011438-17-000146-index.html : 20170214
<SEC-HEADER>0001011438-17-000146.hdr.sgml : 20170214
<ACCEPTANCE-DATETIME>20170214161845
ACCESSION NUMBER:		0001011438-17-000146
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170214
DATE AS OF CHANGE:		20170214
GROUP MEMBERS:		GEORGE SOROS
GROUP MEMBERS:		ROBERT SOROS

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUANTUM CORP /DE/
		CENTRAL INDEX KEY:			0000709283
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				942665054
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-35818
		FILM NUMBER:		17609167

	BUSINESS ADDRESS:	
		STREET 1:		224 AIRPORT PARKWAY
		STREET 2:		SUITE 300
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
		BUSINESS PHONE:		408 944 4000

	MAIL ADDRESS:	
		STREET 1:		224 AIRPORT PARKWAY
		STREET 2:		SUITE 300
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOROS FUND MANAGEMENT LLC
		CENTRAL INDEX KEY:			0001029160
		IRS NUMBER:				133914976
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		250 WEST 55TH STREET, FLOOR 27
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		(212) 872-1054

	MAIL ADDRESS:	
		STREET 1:		250 WEST 55TH STREET, FLOOR 27
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>form_sc13ga-quantum.htm
<TEXT>
Document 1 - file: form_sc13ga-quantum.htm

</DOCUMENT>
</SEC-DOCUMENT>