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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001213900-21-023274
Filing Date
2021-04-28
Accepted
2021-04-28 16:16:48
Documents
1
Period of Report
2021-04-26

Document Format Files

Seq Description Document Type Size
1 ownership.html 4  
1 ownership.xml 4 15585
  Complete submission text file 0001213900-21-023274.txt   20187
Mailing Address 224 AIRPORT PARKWAY SUITE 550 SAN JOSE CA 95110
Business Address 224 AIRPORT PARKWAY SUITE 550 SAN JOSE CA 95110 408 944 4000
QUANTUM CORP /DE/ (Issuer) CIK: 0000709283 (see all company filings)

IRS No.: 942665054 | State of Incorp.: DE | Fiscal Year End: 0331
SIC: 3572 Computer Storage Devices

Mailing Address C/O B. RILEY FINANCIAL, INC. 21255 BURBANK BLVD, SUITE 400 WOODLAND HILLS CA 91367
Business Address
RILEY BRYANT R (Reporting) CIK: 0001207269 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864446

Mailing Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025
Business Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025 818-884-3737
B. Riley Financial, Inc. (Reporting) CIK: 0001464790 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864451
SIC: 7389 Services-Business Services, NEC

Mailing Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025
Business Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025 310-966-1444
B. Riley Securities, Inc. (Reporting) CIK: 0001505748 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864447

Mailing Address 11100 SANTA MONICA BLVD. SUITE 800 LOS ANGELES CA 90025
Business Address 11100 SANTA MONICA BLVD. SUITE 800 LOS ANGELES CA 90025 310-966-1445
BRC Partners Opportunity Fund, LP (Reporting) CIK: 0001642765 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864448

Mailing Address 11100 SANTA MONICA BLVD. SUITE 800 LOS ANGELES CA 90025
Business Address 11100 SANTA MONICA BLVD. SUITE 800 LOS ANGELES CA 90025 310-966-1445
B. RILEY CAPITAL MANAGEMENT, LLC (Reporting) CIK: 0001658704 (see all company filings)

State of Incorp.: NY | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864450

Mailing Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025
Business Address 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025 310-689-2220
BRC Partners Management GP, LLC (Reporting) CIK: 0001749420 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 21864449