QUANTUM CORP /DE/ — Director's Dealing 2011

Feb 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUANTUM CORP /DE/ (QTM)
CIK: 0000709283
Period of Report: 2011-02-15

Reporting Person: BELLUZZO RICHARD (Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-15	Common Stock	S	50000	$2.8248	Disposed	1182787	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 24, 2010.

F2: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $2.82 to $2.83 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.