v2.4.0.8

Stockholders' Equity (Tables)

12 Months Ended

Apr. 30, 2014

Stock Option Activity

Stock option activity was as follows:

		Number of Options (in thousands)				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value (in thousands)
Balance as of April 30, 2012			12,083			$	4.57
Options granted			5,053				8.43
Options exercised			(4,597	)			2.45
Options forfeited			(1,710	)			7.49
Balance as of April 30, 2013			10,829				6.83
Options granted			2,092				8.32
Options exercised			(3,360	)			3.34
Options forfeited			(2,470	)			10.22
Balance as of April 30, 2014			7,091			$	7.74				7.02			$	6,264
Options vested and expected to vest at April 30, 2014			6,901			$	7.70				6.98			$	6,253
Options vested and exercisable as of April 30, 2014			3,658			$	6.71				5.40			$	5,982

Summary of Stock Options

The summary of stock options as of April 30, 2014 is as follows (number of options in thousands):

		Options Outstanding												Options Exercisable
Range of Exercise Prices		Number of Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (in years)				Number of Options				Weighted Average Exercise Price
$0.00 – $2.86			789			$	2.04				4.31				766			$	2.02
$2.96 – $4.85			381			$	4.36				5.98				377			$	4.35
$4.86 – $4.86			759			$	4.86				4.19				714			$	4.86
$5.35 – $6.54			725			$	6.40				8.10				333			$	6.31
$6.58 – $7.32			733			$	7.08				8.96				195			$	6.82
$7.39 – $7.50			759			$	7.41				8.80				88			$	7.39
$7.51 – $9.46			815			$	8.88				7.94				300			$	8.72
$9.51 – $9.60			713			$	9.53				7.93				133			$	9.59
$10.24 – $12.60			843			$	11.91				6.21				473			$	12.24
$13.95 – $18.67			574			$	14.64				7.73				279			$	14.74
$0.00 – $18.67			7,091			$	7.74				7.02				3,658			$	6.71

Restricted Stock Activity

Restricted stock activity was as follows (number of restricted shares in thousands):

		Number of Restricted Shares				Weighted Average Grant Date Fair Value
Unvested balance as of April 30, 2012			16			$	18.67
Restricted shares granted			1,251				11.14
Restricted shares vested			(67	)			15.59
Restricted shares forfeited			(105	)			14.71
Unvested balance as of April 30, 2013			1,095			$	10.63
Restricted shares granted			2,629				8.30
Restricted shares vested			(321	)			11.11
Restricted shares forfeited			(426	)			11.18
Unvested balance as of April 30, 2014			2,977			$	8.44

Employee Stock Purchase Plan

Assumptions Used to Estimate Fair Value of Options and ESSP Using Black-Scholes Option Pricing Model

The fair value of the Company’s ESPP was estimated at the date of grant using a Black-Scholes option pricing model with the following assumptions:

		Year Ended April 30,
		2014		2013		2012
Expected volatility		36% – 43%		36% – 37%		—
Risk-free interest rate		0.05% – 0.11%		0.10% – 0.11%		—
Expected term (in years)		0.5		0.5		—
Dividend yield		—		—		—

Stock Options

Assumptions Used to Estimate Fair Value of Options and ESSP Using Black-Scholes Option Pricing Model

The fair value of the Company’s options was estimated at the date of grant using a Black-Scholes option pricing model with the following assumptions:

		Year Ended April 30,
		2014		2013		2012
Expected volatility		53% – 54%		54% – 55%		55% – 58%
Risk-free interest rate		1.30% – 2.09%		0.83% – 1.40%		1.05% – 2.14%
Expected term (in years)		6.00 – 6.25		5.94 – 6.25		5.75 – 6.25
Dividend yield		—		—		—

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- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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