QUANTUM CORP /DE/ — Director's Dealing 2011

Sep 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUANTUM CORP /DE/ (QTM)
CIK: 0000709283
Period of Report: 2011-09-01

Reporting Person: BELLUZZO RICHARD (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-09-01	Common Stock	A	50000	—	Acquired	855526	Direct
2011-09-01	Common Stock	F	6113	$1.87	Disposed	849413	Direct

Footnotes

F1: Restricted Stock Units will vest over one (1) year as follows: 25% will vest on each of 12/1/11, 3/1/12, 6/1/12 and the date of Quantum Corporation's 2012 Annual Shareholder Meeting.

F2: Surrender of shares to satisfy tax withholding obligations upon vesting of restricted stock units granted on 7/1/2010.