<SEC-DOCUMENT>0001193125-21-027405-index.html : 20210203
<SEC-HEADER>0001193125-21-027405.hdr.sgml : 20210203
<ACCEPTANCE-DATETIME>20210203165356
ACCESSION NUMBER:		0001193125-21-027405
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210203
DATE AS OF CHANGE:		20210203

FILER:

	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:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-250976
		FILM NUMBER:		21586922

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>d56497d424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: d56497d424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g56497g50s53.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g56497g50s53.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g56497g86i28.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g56497g86i28.jpg

</DOCUMENT>
</SEC-DOCUMENT>