EMPLOYEE STOCK PLANS

Stock Options

Options to purchase common stock granted under the 2012 Equity Incentive Plan (the "2012 Plan") generally have terms not exceeding seven years. Options to purchase stock under our equity incentive plans are generally granted at exercise prices that are at least 100 percent of the fair market value of our common stock on the date of grant. Generally, 25 percent of the options vest on the first anniversary of the vesting commencement date, and the remaining options vest 1/36th per month for the next 36 months thereafter. In December 2013, our Board of Directors approved the adoption of monthly vesting of stock options for employees with a minimum of one year of service.

In October 2012, our Board of Directors approved a special stock option retention grant to all then existing employees. The 1.7 million shares retention grant vested in its entirety on January 31, 2014, 15 months after the vesting commencement date.

The following table summarizes the stock option activity under all of our equity incentive plans for the six months ended June 29, 2014:



	Number of Shares		Weighted- Average Exercise Price		Weighted Average Remaining Term	Aggregated Intrinsic Value
	(thousands)		(per share)		(years)	(thousands)
Outstanding as of December 31, 2013	4,993		$	2.18
Granted	611		$	2.42
Exercised	(277	)	$	0.93
Canceled or forfeited	(252	)	$	8.31
Outstanding as of June 29, 2014	5,075		$	1.98	4.8	$	2,614
Vested and expected to vest as of June 29, 2014	4,643		$	1.98	4.7	$	2,454
Exercisable as of June 29, 2014	3,054		$	2.05	4.1	$	1,800

The aggregate intrinsic value represents the pre-tax differences between the exercise price of stock options and the quoted market price of our stock on June 27, 2014 for all in-the-money options.

The following table provides information pertaining to our stock options for the six months ended June 29, 2014 and June 30, 2013 (in thousands, except weighted-average fair values):



	Six Months Ended
	June 29, 2014		June 30, 2013
Weighted-average fair value of options granted	$	1.24	$	0.80
Intrinsic value of options exercised	$	358	$	199
Cash received from options exercised	$	256	$	207

Restricted Stock Units

The 2012 Plan provides for grants of time-based and performance-based restricted stock units ("RSUs"). As of June 29, 2014, we only had time-based RSUs outstanding.

Time-Based Restricted Stock Units

Historically, 25 percent of the time-based RSUs vest on each anniversary of the vesting commencement date or date of grant. In December 2013, our Board of Directors approved a quarterly vesting schedule for RSUs. On occasion, we grant time-based RSUs for varying purposes with different vesting schedules. Time-based RSUs granted under the 2012 Plan are counted against the total number of shares of common stock available for grant under the 2012 Plan at 1.75 shares of common stock for every one share of common stock subject thereto.

The associated stock-based compensation expense on time-based RSUs is determined based on the fair value of our common stock on the date of grant of the RSU and recognized over the vesting period.

The following table summarizes RSU activity under all of our equity incentive plans for the six months ended June 29, 2014:



	Number of Shares		Weighted Average Grant Date Fair Value
	(thousands)		(per share)
Outstanding as of December 31, 2013	429		$	1.45
Granted	655		$	2.43
Released	(135	)	$	1.64
Canceled or forfeited	(8	)	$	2.49
Outstanding as of June 29, 2014	941		$	2.10