During the six months ended June 30, 2019, we granted stock only stock appreciation rights (“SOSARs”) on 190 shares of our common stock to eligible employees. The weighted-average grant date fair value of the SOSARs was $173.96 per share with a weighted-average exercise price of $590.60 per share. The SOSARs vest in two equal installments on the second and third anniversary of the grant date. During the six months ended June 30, 2019, 736 SOSARs were exercised, 23 SOSARs were forfeited, and 50 SOSARs expired.

During the six months ended June 30, 2019, we granted restricted stock units (“RSUs”) on 23 shares of our common stock to eligible employees. The weighted-average grant date fair value of the RSUs was $599.06 per share. The RSUs generally vest in two equal installments on the second and third anniversary of the grant date. During the six months ended June 30, 2019, 45 RSUs vested and 11 RSUs were forfeited.

During the six months ended June 30, 2019, we awarded a total of 46 performance shares (“PSUs”) that are subject to service and performance vesting conditions. The weighted-average grant date fair value of the PSUs was $583.13 per share, and the quantity of shares that will vest range from 0% to 300% of the targeted number of shares. If the defined minimum targets are not met, then no shares will vest. During the six months ended June 30, 2019, there were two different PSU awards granted with different terms.

The first award, consisting of 33 PSUs, will vest based on our growth in comparable restaurant sales and average restaurant margin over defined periods. These PSU awards will vest fully on the third anniversary of the grant date.

The second award, consisting of 13 PSUs, will vest based on achievement of certain targets related to digital sales, general and administrative expenses as a percentage of revenue, and successful completion of a defined number of strategic initiatives. These PSU awards will vest 40% on the third anniversary of the grant date and 60% on the fourth anniversary of the grant date.

During the six months ended June 30, 2019, 12 PSUs that were subject to service and market conditions were forfeited for failure to meet the specified performance levels or service requirements.



	Three months ended				Six months ended
	June 30,				June 30,
	2019		2018		2019		2018
Stock-based compensation expense	$	21,322	$	11,660	$	40,664	$	24,036
Stock-based compensation expense, net of tax	$	15,689	$	8,575	$	30,091	$	17,676
Total capitalized stock-based compensation included in net property, plant and equipment on the condensed consolidated balance sheet	$	155	$	112	$	343	$	391
Excess tax benefit (deficit) on stock-based compensation recognized in provision for income taxes	$	5,264	$	(431)	$	10,698	$	(5,973)