Quantum Corporation Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE

3 Months Ended

Jun. 30, 2011

NOTE 11: NET LOSS PER SHARE

The following is the computation of basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended
	June 30, 2011			June 30, 2010
Net loss	$	(5,226	)	$	(2,696	)
Basic and diluted weighted-average shares and common share equivalents		228,423			215,448
Basic and diluted net loss per share	$	(0.02	)	$	(0.01	)

The computations of diluted net loss per share for the periods presented exclude the following because the effect would have been anti-dilutive:

At June 30, 2011, 31.2 million weighted equivalent shares of 3.50% convertible subordinated notes issued in November 2010 were excluded. At June 30, 2010, 5.1 million weighted equivalent shares of 4.375% convertible subordinated notes issued in July 2003 were excluded.
Options to purchase 7.4 million and 11.5 million weighted-average shares at June 30, 2011 and 2010, respectively, were excluded.
Unvested restricted stock and restricted stock units of 0.1 million and 0.4 million weighted-average shares at June 30, 2011 and 2010, respectively, were excluded.

The entire disclosure for earnings per share.