<SEC-DOCUMENT>0001213900-21-023274-index.html : 20210428
<SEC-HEADER>0001213900-21-023274.hdr.sgml : 20210428
<ACCEPTANCE-DATETIME>20210428161648
ACCESSION NUMBER:		0001213900-21-023274
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210426
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			B. Riley Securities, Inc.
		CENTRAL INDEX KEY:			0001505748
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864447

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-966-1444

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

	FORMER NAME:	
		FORMER CONFORMED NAME:	B. Riley FBR, Inc.
		DATE OF NAME CHANGE:	20180830

	FORMER NAME:	
		FORMER CONFORMED NAME:	FBR Capital Markets & Co
		DATE OF NAME CHANGE:	20101115

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RILEY BRYANT R
		CENTRAL INDEX KEY:			0001207269

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864446

	MAIL ADDRESS:	
		STREET 1:		C/O B. RILEY FINANCIAL, INC.
		STREET 2:		21255 BURBANK BLVD, SUITE 400
		CITY:			WOODLAND HILLS
		STATE:			CA
		ZIP:			91367

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			B. Riley Financial, Inc.
		CENTRAL INDEX KEY:			0001464790
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864451

	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 NAME:	
		FORMER CONFORMED NAME:	Great American Group, Inc.
		DATE OF NAME CHANGE:	20090522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRC Partners Management GP, LLC
		CENTRAL INDEX KEY:			0001749420
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864449

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-689-2220

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRC Partners Opportunity Fund, LP
		CENTRAL INDEX KEY:			0001642765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864448

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD. SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-966-1445

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			B. RILEY CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001658704
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13449
		FILM NUMBER:		21864450

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD.
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-966-1445

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

ISSUER:		

	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

	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>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>