<SEC-DOCUMENT>0000921895-20-000707-index.html : 20200311
<SEC-HEADER>0000921895-20-000707.hdr.sgml : 20200311
<ACCEPTANCE-DATETIME>20200311172521
ACCESSION NUMBER:		0000921895-20-000707
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200311
DATE AS OF CHANGE:		20200311

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 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-35818
		FILM NUMBER:		20706307

	BUSINESS ADDRESS:	
		STREET 1:		224 AIRPORT PARKWAY
		STREET 2:		SUITE 550
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
		BUSINESS PHONE:		408 944 4000

	MAIL ADDRESS:	
		STREET 1:		224 AIRPORT PARKWAY
		STREET 2:		SUITE 550
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VIEX Capital Advisors, LLC
		CENTRAL INDEX KEY:			0001619125
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		745 BOYLSTON STREET
		STREET 2:		3RD FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		212-752-5750

	MAIL ADDRESS:	
		STREET 1:		745 BOYLSTON STREET
		STREET 2:		3RD FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Vertex Capital Advisors, LLC
		DATE OF NAME CHANGE:	20140910
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13da1310114016_03112020.htm
<DESCRIPTION>AMENDMENT NO. 13 TO THE SCHEDULE 13D
<TEXT>
Document 1 - file: sc13da1310114016_03112020.htm

</DOCUMENT>
</SEC-DOCUMENT>