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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000921895-19-002984
Filing Date
2019-12-12
Accepted
2019-12-12 20:04:30
Documents
1
Period of Report
2019-12-10

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT form410114016_12122019.html 4  
1 OWNERSHIP DOCUMENT form410114016_12122019.xml 4 17984
  Complete submission text file 0000921895-19-002984.txt   23720
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 825 THIRD AVENUE 33RD FLOOR NEW YORK NY 10022
Business Address
Singer Eric (Reporting) CIK: 0001443284 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283056

Mailing Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022
Business Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022 212-752-5750
VIEX Opportunities Fund, LP Series One (Reporting) CIK: 0001606750 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283057

Mailing Address 745 BOYLSTON STREET 3RD FLOOR BOSTON MA 02116
Business Address 745 BOYLSTON STREET 3RD FLOOR BOSTON MA 02116 212-752-5750
VIEX Capital Advisors, LLC (Reporting) CIK: 0001619125 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283062

Mailing Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022
Business Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022 212-752-5750
VIEX Special Opportunities Fund III, LP (Reporting) CIK: 0001619126 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283059

Mailing Address 825 THIRD AVE. 33RD FLOOR NEW YORK NY 10022
Business Address 825 THIRD AVE. 33RD FLOOR NEW YORK NY 10022 212-752-5750
VIEX GP, LLC (Reporting) CIK: 0001654852 (see all company filings)

Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283060

Mailing Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022
Business Address C/O VIEX CAPITAL ADVISORS, LLC 825 THIRD AVENUE, 33RD FLOOR NEW YORK NY 10022 212-752-5750
VIEX Opportunities Fund, LP - Series Two (Reporting) CIK: 0001659404 (see all company filings)

Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283058

Mailing Address 825 THIRD AVE, 33RD FLOOR NEW YORK NY 10022
Business Address 825 THIRD AVE, 33RD FLOOR NEW YORK NY 10022 (212) 451-2282
VIEX Special Opportunities GP III, LLC (Reporting) CIK: 0001676049 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 191283061