<SEC-DOCUMENT>0001213900-21-023270-index.html : 20210428
<SEC-HEADER>0001213900-21-023270.hdr.sgml : 20210428
<ACCEPTANCE-DATETIME>20210428161446
ACCESSION NUMBER:		0001213900-21-023270
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428
GROUP MEMBERS:		B. RILEY CAPITAL MANAGEMENT, LLC
GROUP MEMBERS:		B. RILEY SECURITIES, INC.
GROUP MEMBERS:		BRC PARTNERS MANAGEMENT GP, LLC
GROUP MEMBERS:		BRC PARTNERS OPPORTUNITY FUND, L.P.
GROUP MEMBERS:		BRYANT R. RILEY

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:		21864393

	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:			B. Riley Financial, Inc.
		CENTRAL INDEX KEY:			0001464790
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				270223495
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		818-884-3737

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Great American Group, Inc.
		DATE OF NAME CHANGE:	20090522
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>ea140024-13da3briley_quantum.htm
<DESCRIPTION>AMENDMENT TO NO. 3 SCHEDULE 13D
<TEXT>
Document 1 - file: ea140024-13da3briley_quantum.htm

</DOCUMENT>
</SEC-DOCUMENT>