Stockholders' Equity & Stock-Based Compensation

We provide stock-based awards as a form of compensation for employees, officers and directors. We have issued stock-based awards in the form of stock options and RSUs under our equity incentive plans, as well as shares under our ESPP.

Common Stock - Class A and Class B

Our Board of Directors has authorized two classes of common stock, Class A and Class B. At March 27, 2015, we had authorized 500,000,000 Class A shares and 500,000,000 Class B shares. At March 27, 2015, we had 51,383,446 shares of Class A common stock and 51,073,661 shares of Class B common stock issued and outstanding. Holders of our Class A and Class B common stock have identical rights, except that holders of our Class A common stock are entitled to one vote per share and holders of our Class B common stock are entitled to ten votes per share. Shares of Class B common stock can be converted to shares of Class A common stock at any time at the option of the stockholder and automatically convert upon sale or transfer, except for certain transfers specified in our amended and restated certificate of incorporation.

Stock Incentive Plans

2000 Stock Incentive Plan. Effective October 2000, we adopted the 2000 Stock Incentive Plan. The 2000 Stock Incentive Plan, as amended, provided for the issuance of incentive and non-qualified stock options to our employees, directors, and consultants to purchase up to 15.1 million shares of Class B common stock. Under the terms of this plan, options became exercisable as established by the Board of Directors (ratably over four years), and expire ten years after the date of the grant. Options issued under the plan were made at their grant-date fair market value. Subsequent to fiscal 2005, no further options were granted under this plan. The 2000 Stock Incentive Plan terminated on October 1, 2010 and no shares of our common stock remained available for future issuance under that plan other than pursuant to outstanding options. As of March 27, 2015, there were no outstanding options to purchase shares of Class B common stock.

2005 Stock Plan. In January 2005, our stockholders approved our 2005 Stock Plan, which our Board of Directors adopted in November 2004. The 2005 Stock Plan became effective on February 16, 2005, the day prior to the completion of our initial public offering. Our 2005 Stock Plan, as amended and restated, provides for the ability to grant incentive stock options ("ISOs"), nonstatutory stock options ("NQs"), restricted stock, RSUs, SARs, deferred stock units, performance units, performance bonus awards and performance shares. A total of 38.0 million shares of our Class A common stock is authorized for issuance under the 2005 Stock Plan. For awards granted prior to February 2011, any shares subject to an award with a per share price less than the fair market value of our Class A common stock on the date of grant and any shares subject to an outstanding RSU award will be counted against the authorized share reserve as two shares for every one share subject to the award, and if returned to the 2005 Stock Plan, such shares will be counted as two shares for every one share returned. For those awards granted from February 2011 onward, any shares subject to an award with a per share price less than the fair market value of our Class A common stock on the date of grant and any shares subject to an outstanding RSU award will be counted against the authorized share reserve as 1.6 shares for every one share subject to the award, and if returned to the 2005 Stock Plan, such shares will be counted as 1.6 shares for every one share returned.

As of March 27, 2015, there were options outstanding to purchase 9.2 million shares of Class A common stock, of which 4.2 million were vested and exercisable. The options outstanding have a remaining weighted-average contractual life of 7.5 years.

Stock Options. Stock options are generally granted at fair market value on the date of grant. Options granted to employees and officers prior to June 2008 generally vest over four years, with equal annual cliff-vesting and expire on the earlier of 10 years after the date of grant or 3 months after termination of service. Options granted to employees and officers from June 2008 onward generally vest over four years, with 25% of the shares subject to the option becoming exercisable on the one-year anniversary of the date of grant and the balance of the shares vesting in equal monthly installments over the following 36 months. These options expire on the earlier of 10 years after the date of grant or 3 months after termination of service. All options granted vest over the requisite service period and upon the exercise of stock options, we issue new shares of Class A common stock under the 2005 Stock Plan and new shares of Class B common stock under the 2000 Stock Incentive Plan. Our 2005 Stock Plan also allows us to grant stock awards which vest based on the satisfaction of specific performance criteria.

The following table summarizes information about stock options issued under our 2000 Stock Incentive Plan and 2005 Stock Plan:



	Shares		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Life	Aggregate Intrinsic Value (1)
	(in thousands)				(in years)	(in thousands)
Options outstanding at September 26, 2014	7,611		$	32.96
Grants	2,418		42.80
Exercises	(298	)	28.76
Forfeitures and cancellations	(498	)	36.40
Options outstanding at March 27, 2015	9,233		35.49		7.6	$	38,754
Options vested and expected to vest at March 27, 2015	8,719		35.11		7.5	38,542
Options exercisable at March 27, 2015	4,180		$	31.66	6.1	29,167


(1)	Aggregate intrinsic value is based on the closing price of our common stock on March 27, 2015 of $38.10 and excludes the impact of options that were not in-the-money.

Restricted Stock Units. Beginning in fiscal 2008, we began granting RSUs to certain directors, officers and employees under our 2005 Stock Plan. Awards granted to employees and officers generally vest over four years, with equal annual cliff-vesting. Awards granted to directors prior to November 2010 generally vest over three years, with equal annual cliff-vesting. Awards granted after November 2010 and prior to fiscal 2014 to new directors vest over approximately two years, with 50% vesting per year, while awards granted from November 2010 onward to ongoing directors generally vest over approximately one year. Awards granted to new directors from fiscal 2014 onward vest on the earlier of the first anniversary of the award’s date of grant, or the day immediately preceding the date of the next annual meeting of stockholders that occurs after the award’s date of grant. Our 2005 Stock Plan also allows us to grant RSUs which vest based on the satisfaction of specific performance criteria, although no such awards have been granted as of March 27, 2015. At each vesting date, the holder of the award is issued shares of our Class A common stock. Compensation expense from these awards is equal to the fair market value of our common stock on the date of grant and is recognized on a straight-line basis over the requisite service period.

The following table summarizes information about RSUs issued under our 2005 Stock Plan:



	Shares		Weighted-Average Grant Date Fair Value
	(in thousands)
Non-vested at September 26, 2014	2,903		$	35.79
Granted	1,180		42.49
Vested	(815	)	36.41
Forfeitures	(173	)	30.60
Non-vested at March 27, 2015	3,095		$	38.47

Employee Stock Purchase Plan. Our plan allows eligible employees to have up to 10 percent of their eligible compensation withheld and used to purchase Class A common stock, subject to a maximum of $25,000 worth of stock purchased in a calendar year or no more than 1,000 shares in an offering period, whichever is less. An offering period consists of successive six-month purchase periods, with a look back feature to our stock price at the commencement of a one-year offering period. The plan provides for a discount equal to 15 percent of the closing price of our common stock on the New York Stock Exchange on the last day of the purchase period and for overlapping one-year offering periods. The plan also includes an automatic reset feature that provides for an offering period to be reset and recommenced to a new lower-priced offering if the offering price of a new offering period is less than that of the immediately preceding offering period.

Stock Option Valuation Assumptions

We use the Black-Scholes option pricing model to determine the estimated fair value of employee stock options at the date of the grant. The Black-Scholes model includes inputs that require us to make certain estimates and assumptions regarding the expected term of the award, as well as the future risk-free interest rate and volatility of our stock price over this expected term of the award.

Expected Term. The expected term of an award represents the estimated period of time that options granted will remain outstanding, and is measured from the grant date to the date at which the option is either exercised or canceled. Our determination of the expected term involves an evaluation of historical terms and other factors such as the exercise and termination patterns of our employees who hold options to acquire our common stock, and is based on certain assumptions made regarding the future exercise and termination behavior.

Risk-Free Interest Rate. The risk-free interest rate is based on the yield curve of United States Treasury instruments in effect on the date of grant. In determining an estimate for the risk-free interest rate, we use average interest rates based on these instruments’ constant maturities with a term that approximates and corresponds with the expected term of our awards.

Expected Stock Price Volatility. The expected volatility represents the estimated volatility in the price of our common stock over a time period that approximates the expected term of the awards, and is determined using a blended combination of historical and implied volatility. Historical volatility is representative of the historical trends in our stock price for periods preceding the measurement date since our initial public offering. Implied volatility is based upon externally traded option contracts of our common stock.

Dividend Yield. The dividend yield is based on our anticipated quarterly dividend payout over the expected term of our option awards.

The weighted-average assumptions used in the determination of the fair value of our stock options were as follows:



	Fiscal Quarter Ended				Fiscal Year-To-Date Ended
	March 27, 2015		March 28, 2014		March 27, 2015		March 28, 2014
Expected term (in years)	5.21		4.58		4.60		4.58
Risk-free interest rate	1.6	%	1.5	%	1.5	%	1.4	%
Expected stock price volatility	29.5	%	32.4	%	29.7	%	32.0	%
Dividend yield	1.0	%	—	%	0.9	%	—	%

Stock-Based Compensation Expense

Stock-based compensation expense for equity awards granted to employees is determined by estimating their fair value on the date of grant, and recognizing that value as an expense on a straight-line basis over the requisite service period in which our employees earn the awards. Compensation expense related to these equity awards is recognized net of estimated forfeitures, which reduce the expense recorded in the consolidated statements of operations. The selection of applicable estimated forfeiture rates is based on an evaluation of trends in our historical forfeiture data with consideration for other potential driving factors. If in subsequent periods actual forfeitures significantly differ from our initial estimates, we will revise such estimates accordingly.

The following two tables separately present stock-based compensation expense both by award type and classification in our consolidated statements of operations (in thousands):

Expense - By Award Type



	Fiscal Quarter Ended						Fiscal Year-To-Date Ended
	March 27, 2015			March 28, 2014			March 27, 2015			March 28, 2014
Compensation Expense - By Type
Stock options	$	5,729		$	5,387		$	12,012		$	9,257
Restricted stock units	10,077			11,565			20,292			21,822
Employee stock purchase plan	861			801			2,205			1,728
Total stock-based compensation	16,667			17,753			34,509			32,807
Benefit from income taxes	(4,890		)	(5,290		)	(10,041		)	(9,686		)
Total stock-based compensation, net of tax	$	11,777		$	12,463		$	24,468		$	23,121

Expense - By Income Statement Line Item Classification



	Fiscal Quarter Ended						Fiscal Year-To-Date Ended
	March 27, 2015			March 28, 2014			March 27, 2015			March 28, 2014
Compensation Expense - By Classification
Cost of products	$	224		$	217		$	470		$	407
Cost of services	115			113			237			200
Research and development	4,938			4,889			10,212			9,196
Sales and marketing	5,576			6,332			11,485			11,357
General and administrative	5,814			6,202			12,105			11,647
Total stock-based compensation	16,667			17,753			34,509			32,807
Benefit from income taxes	(4,890		)	(5,290		)	(10,041		)	(9,686		)
Total stock-based compensation, net of tax	$	11,777		$	12,463		$	24,468		$	23,121

The tax benefit that we recognize from certain exercises of ISOs and shares issued under our ESPP are excluded from the tables above. This benefit was as follows (in thousands):



	Fiscal Quarter Ended				Fiscal Year-To-Date Ended
	March 27, 2015		March 28, 2014		March 27, 2015		March 28, 2014
Tax benefit - stock option exercises & shares issued under ESPP	$	19	$	135	$	187	$	310

Unrecognized Compensation Expense. At March 27, 2015, total unrecorded compensation expense associated with employee stock options expected to vest was approximately $34.0 million, which is expected to be recognized over a weighted-average period of 2.2 years. At March 27, 2015, total unrecorded compensation expense associated with RSUs expected to vest was approximately $89.6 million, which is expected to be recognized over a weighted-average period of 2.9 years.

Common Stock Repurchase Program

In November 2009, we announced a stock repurchase program ("program"), providing for the repurchase of up to $250.0 million of our Class A common stock. The following table summarizes the initial amount of authorized repurchases as well as additional repurchases approved by our Board of Directors as of March 27, 2015 (in thousands):



Authorization Period	Authorization Amount
Fiscal 2010: November 2009	$	250,000
Fiscal 2010: July 2010	300,000
Fiscal 2011: July 2011	250,000
Fiscal 2012: February 2012	100,000
Fiscal 2015: October 2014	200,000
Total	$	1,100,000

Stock repurchases under the program may be made through open market transactions, negotiated purchases, or otherwise, at times and in amounts that we consider appropriate. The timing of repurchases and the number of shares repurchased depend upon a variety of factors, including price, regulatory requirements, the rate of dilution from our equity compensation plans and other market conditions. The program does not have a specified expiration date, and can be limited, suspended or terminated at our discretion at any time without prior notice. Shares repurchased under the program will be returned to the status of authorized but unissued shares of Class A common stock. As of March 27, 2015, the remaining authorization to purchase additional shares is approximately $227.7 million.

The following table provides information regarding share repurchase activity under the program during fiscal 2015:



Quarterly Repurchase Activity	Shares Repurchased	Cost (1)		Average Price Paid Per Share (2)
		(in thousands)
Q1 - Quarter ended December 26, 2014	389,500	$	16,953	$	43.51
Q2 - Quarter ended March 27, 2015	390,000	15,411		39.47
Total	779,500	$	32,364


(1)	Cost of share repurchases includes the price paid per share and applicable commissions.


(2)	Average price paid per share excludes commission costs.

Dividend

In October 2014, our Board of Directors initiated a recurring quarterly dividend program for our stockholders. The following table summarizes the dividend payments made under the program:



Fiscal Period	Declaration Date	Record Date	Payment Date	Cash Dividend Per Common Share		Dividend Payment
Fiscal 2014
Q4 - Quarter ended September 26, 2014	October 21, 2014	November 3, 2014	November 20, 2014	$	0.10	$	10.2	million

Fiscal 2015
Q1 - Quarter ended December 26, 2014	January 19, 2015	February 2, 2015	February 10, 2015	$	0.10	$	10.3	million
Q2 - Quarter ended March 27, 2015	April 20, 2015	May 4, 2015	May 12, 2015	$	0.10	$	10.3	million (1)


(1)	The amount of the dividend payment is estimated based on the number of shares of our Class A and Class B common stock that we estimate will be outstanding as of the Record Date.