X0306 4 2017-04-01 0 0000709283 QUANTUM CORP /DE/ QTM 0001410972 Auvil Paul R. III C/O QUANTUM CORPORATION 224 AIRPORT PARKWAY, SUITE 550 SAN JOSE CA 95110 1 0 0 0 Common Stock 2017-04-01 4 A 0 50000 0.00 A 634030 D Restricted Stock Units will fully vest on the date of Quantum Corporation's 2017 Annual Stockholder Meeting. For the avoidance of doubt, if Mr. Auvil resigns for any reason or is removed from Quantum Corporation's board of directors prior to the vesting in full of this grant, Mr. Auvil shall forfeit the entirety of this grant. /s/ Astrid Becker-Celik, Attorney in Fact for Paul R. Auvil III 2017-04-03