SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000921895-16-006295
Filing Date
2016-12-07
Accepted
2016-12-07 18:10:25
Documents
1
Period of Report
2016-12-06

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT form406297109a_12072016.html 4  
1 OWNERSHIP DOCUMENT form406297109a_12072016.xml 4 30073
  Complete submission text file 0000921895-16-006295.txt   35885
Mailing Address 224 AIRPORT PARKWAY SUITE 300 SAN JOSE CA 95110
Business Address 224 AIRPORT PARKWAY SUITE 300 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 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 212-845-7906
STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD (Reporting) CIK: 0001373638 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040064

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Value LP (Reporting) CIK: 0001517137 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040069

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Value GP LLC (Reporting) CIK: 0001517138 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040068

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Principal Co LP (Reporting) CIK: 0001517139 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040066

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Principal Co GP LLC (Reporting) CIK: 0001517140 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040065

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 212-845-7977
STARBOARD VALUE & OPPORTUNITY S LLC (Reporting) CIK: 0001519812 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040067

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Value & Opportunity C LP (Reporting) CIK: 0001571704 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040063

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212)845-7977
Starboard Value R LP (Reporting) CIK: 0001575972 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040062

Mailing Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017
Business Address 777 THIRD AVENUE, 18TH FLOOR NEW YORK NY 10017 (212) 845-7977
Starboard Value R GP LLC (Reporting) CIK: 0001575979 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13449 | Film No.: 162040061