QUANTUM CORP /DE/ — Director's Dealing 2011

Jun 16, 2011

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: QUANTUM CORP /DE/ (QTM)
CIK: 0000709283
Period of Report: 2011-06-13

Reporting Person: Stinson Theodore A. (SVP, Worldwide Sales)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	425000	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option	$2.95	2018-06-13	Common Stock (125000)		Direct

Footnotes

F1: Restricted Stock Units will vest over three years as follows: 33% will vest on each of 6/13/2012, 6/13/2013 and 6/13/2014.

F2: Right to buy under Rule 16b(3) Plan.

F3: Stock options will vest over four years as follows: 25% will vest on 6/13/2012 and the remainder will vest monthly thereafter at the rate of 1/48 of the original grant amount over the following three years.