Stock-Based Compensation

Overview of Employee Stock-Based Compensation Plans

The Company currently has one equity-based compensation plan, the 2013 Long-Term Incentive Compensation Plan (2013 LTIP), from which stock-based compensation awards can be granted to employees and directors. The 2013 LTIP provides for awards in the form of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units and other awards. The Company has other equity-based compensation plans that have been terminated so that no future grants can be made under those plans, but under which stock options, restricted stock and restricted stock units are currently outstanding.

The Company’s stock-based awards can be either service-based or performance-based. Performance-based conditions are generally tied to future financial and/or operating performance of the Company. The compensation expense with respect to performance-based grants is recognized if the Company believes it is probable that the performance condition will be achieved. The Company reassesses the probability of the achievement of the performance condition at each reporting period, and adjusts the compensation expense for subsequent changes in the estimate or actual outcome. As with non-performance based awards, compensation expense is recognized over the vesting period. The vesting period runs from the date of grant to the expected date that the performance objective is likely to be achieved.

The Company also has an Employee Stock Purchase Plan (ESPP) that provides employees with the opportunity to purchase common stock at a discount. The ESPP limits employee contributions to 15% of each employee’s compensation (as defined in the plan) and allows employees to purchase shares at a 15% discount to the fair market value of common stock on the purchase date two times per year. The ESPP provides for a twelve-month participation period, divided into two equal six-month purchase periods, and also provides for a look-back feature. At the end of each six-month period in April and October, participants purchase the Company’s common stock through the ESPP at a 15% discount to the fair market value of the common stock on the first day of the twelve-month participation period or the purchase date, whichever is lower. The plan also provides for an automatic reset feature to start participants on a new twelve-month participation period if the fair market value of common stock declines during the first six-month purchase period.

Stock Option Awards

The following table summarizes stock option awards outstanding as of March 26, 2017 and changes during the nine months then ended (numbers of shares in thousands):



	Number of Shares		Weighted Average Exercise Price
Outstanding at June 26, 2016	11,247			$40.42
Granted	1,761			$24.52
Exercised	(114	)		$26.47
Forfeited or expired	(1,785	)		$38.70
Outstanding at March 26, 2017	11,109			$38.32

Restricted Stock Awards and Units

A summary of nonvested restricted stock awards (RSAs) and restricted stock unit awards (RSUs) outstanding as of March 26, 2017, and changes during the nine months then ended is as follows (numbers of awards and units in thousands):



	Number of RSAs/RSUs		Weighted Average Grant-Date Fair Value
Nonvested at June 26, 2016	1,631			$31.66
Granted	1,528			$24.62
Vested	(565	)		$34.72
Forfeited	(138	)		$29.73
Nonvested at March 26, 2017	2,456			$26.78

Stock-Based Compensation Valuation and Expense

The Company accounts for its employee stock-based compensation plans using the fair value method. The fair value method requires the Company to estimate the grant-date fair value of its stock-based awards and amortize this fair value to compensation expense over the requisite service period or vesting term.

The Company uses the Black-Scholes option-pricing model to estimate the fair value of the Company’s stock option and ESPP awards. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, the risk-free interest rate and expected dividends. Due to the inherent limitations of option-valuation models, future events that are unpredictable and the estimation process utilized in determining the valuation of the stock-based awards, the ultimate value realized by award holders may vary significantly from the amounts expensed in the Company’s financial statements.

For RSAs and RSUs, the grant-date fair value is based upon the market price of the Company’s common stock on the date of the grant. This fair value is then amortized to compensation expense over the requisite service period or vesting term.

Stock-based compensation expense is recognized net of estimated forfeitures such that expense is recognized only for those stock-based awards that are expected to vest. A forfeiture rate is estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from initial estimates.

Total stock-based compensation expense was as follows (in thousands):



	Three Months Ended				Nine Months Ended
	March 26, 2017		March 27, 2016		March 26, 2017		March 27, 2016
Income Statement Classification:
Cost of revenue, net		$2,229		$3,078		$8,012		$9,221
Research and development	2,542		3,694		8,468		10,554
Sales, general and administrative	6,790		8,084		21,937		24,539
Total stock-based compensation expense		$11,561		$14,856		$38,417		$44,314