QUANTUM CORP /DE/ - Director's Dealing 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QUANTUM CORP /DE/ (QTM)
CIK: 0000709283
Period of Report: 2011-12-06

Reporting Person: FETTER ELIZABETH A (Director)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-06	Common Stock	M	2500	$1.77	Acquired	140892	Direct
2011-12-06	Common Stock	M	5000	$1.16	Acquired	145892	Direct
2011-12-06	Common Stock	S	7500	$2.75	Disposed	138392	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-12-06	Non-Qualified Stock Options	$1.77	M	2500	Disposed	2015-09-01	Common Stock (2500)	Direct
2011-12-06	Non-Qualified Stock Options	$1.16	M	5000	Disposed	2016-09-01	Common Stock (5000)	Direct

F1: Reflects the exercise of the stock options listed in Table II of this Form 4.

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 1, 2011.

F3: The options are fully vested and immediately exercisable.