Common Stock, Preferred Stock and Equity Plans (Tables)

12 Months Ended

Dec. 31, 2014

Common Stock, Preferred Stock and Equity Plans

Stock and Stock Option Equity Plans

The following table contains information about the Company’s equity plans:

			As of December 31, 2014
Title of Plan	Group Eligible	Type of Award Granted	Awards Outstanding	Additional Awards Authorized for Grant
2013 Stock and Option Plan	Employees, Non-employee Directors and Consultants	NSO, RS and RSU	2,857,275	9,362,898
2006 Stock and Option Plan	Employees, Non-employee Directors and Consultants	NSO, RS and RSU	11,428,741	1,189,473
1996 Stock and Option Plan	Employees, Non-employee Directors, Advisors and Consultants	NSO, ISO and RS	623,789	—
		Total	14,909,805	10,552,371

Outstanding and vested options

The following table summarizes information related to the outstanding and exercisable options during the year ended December 31, 2014:

	Stock Options		Weighted-average Exercise Price		Weighted-average Remaining Contractual Life	Aggregate Intrinsic Value
	(in thousands)		(per share)		(in years)	(in thousands)
Outstanding at December 31, 2013	15,729		$	44.40
Granted	3,614		$	84.33
Exercised	(6,153	)	$	41.53
Forfeited	(1,173	)	$	55.28
Expired	(14	)	$	66.43
Outstanding at December 31, 2014	12,003		$	56.81	6.94	$	761,274
Exercisable at December 31, 2014	5,553		$	45.61	5.43	$	414,345
Exercisable and Expected to Vest at December 31, 2014	11,380		$	55.94	6.85	$	731,677

Stock options outstanding and exercisable

The following table summarizes information about stock options outstanding and exercisable at December 31, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted-average Remaining Contractual Life	Weighted-average Exercise Price		Number Exercisable	Weighted-average Exercise Price
	(in thousands)	(in years)	(per share)		(in thousands)	(per share)
$10.41–$20.00	214	2.25	$	17.66	214	$	17.66
$20.01–$40.00	3,702	4.40	$	35.07	2,989	$	34.73
$40.01–$60.00	3,690	7.46	$	48.52	1,435	$	50.48
$60.01–$80.00	1,980	8.85	$	76.13	442	$	74.76
$80.01–$100.00	2,401	8.87	$	90.23	473	$	84.9
$100.01–$112.48	16	9.83	$	110.58	—	$	—
Total	12,003	6.94	$	56.81	5,553	$	45.61

Restricted stock activity

The following table summarizes the restricted stock activity of the Company during the year ended December 31, 2014:

	Restricted Stock		Weighted-average Grant-date Fair Value
	(in thousands)		(per share)
Unvested at December 31, 2013	2,046		$	52.66
Granted	1,897		$	92.00
Vested	(595	)	$	50.65
Cancelled	(441	)	$	56.36
Unvested at December 31, 2014	2,907		$	78.18

Shares issued under Employee Stock Purchase Plan

In 2014, the following shares were issued to employees under the ESPP:

	Year Ended December 31, 2014
	(in thousands, except per share amount)
Number of shares	357
Average price paid per share	$	53.65