<SEC-DOCUMENT>0001013594-17-000232-index.html : 20170303 <SEC-HEADER>0001013594-17-000232.hdr.sgml : 20170303 <ACCEPTANCE-DATETIME>20170303170720 ACCESSION NUMBER: 0001013594-17-000232 CONFORMED SUBMISSION TYPE: DFAN14A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20170303 DATE AS OF CHANGE: 20170303 EFFECTIVENESS DATE: 20170303 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: DFAN14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-13449 FILM NUMBER: 17665055 BUSINESS ADDRESS: STREET 1: 224 AIRPORT PARKWAY STREET 2: SUITE 300 CITY: SAN JOSE STATE: CA ZIP: 95110 BUSINESS PHONE: 408 944 4000 MAIL ADDRESS: STREET 1: 224 AIRPORT PARKWAY STREET 2: SUITE 300 CITY: SAN JOSE STATE: CA ZIP: 95110 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: VIEX Capital Advisors, LLC CENTRAL INDEX KEY: 0001619125 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DFAN14A BUSINESS ADDRESS: STREET 1: 825 THIRD AVENUE STREET 2: 33RD FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: 212-752-5750 MAIL ADDRESS: STREET 1: 825 THIRD AVENUE STREET 2: 33RD FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 FORMER COMPANY: FORMER CONFORMED NAME: Vertex Capital Advisors, LLC DATE OF NAME CHANGE: 20140910 </SEC-HEADER> <DOCUMENT> <TYPE>DFAN14A <SEQUENCE>1 <FILENAME>quantumdfan14a-030317.htm <TEXT> Document 1 - file: quantumdfan14a-030317.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>image00001.jpg <TEXT> Document 2 - file: image00001.jpg
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