COMMON STOCK AND EARNINGS PER SHARE

Basic earnings per share attributable to Knoll, Inc. stockholders excludes the dilutive effect of (i) common shares that could potentially be issued due to the exercise of stock options, and (ii) unvested restricted stock and restricted stock units and is computed by dividing net earnings attributable to Knoll, Inc. stockholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per share attributable to Knoll, Inc. stockholders includes the effect of shares and potential shares issued under the stock incentive plans. The following table sets forth the reconciliation from basic to diluted weighted-average number of common shares outstanding:



	Three months ended		Six months ended
	June 30,	June 30,	June 30,	June 30,
	2015	2014	2015	2014
	(in thousands)		(in thousands)
Weighted-average number of common shares outstanding - basic	47,761	47,366	47,705	47,283
Potentially dilutive shares resulting from stock plans	749	609	740	729
Weighted-average number of common shares outstanding - diluted	48,510	47,975	48,445	48,012
Antidilutive equity awards number of shares not included in the weighted-average common shares - diluted	—	138	—	158

Common stock activity for the six months ended June 30, 2015 and 2014 included the repurchase of 287,689 shares for $6.1 million and 379,051 shares for $6.2 million, respectively. Common stock activity for the six months ended June 30, 2015 also included the exercise of 302,750 stock options for $4.4 million and the vesting of 281,581 restricted shares. Common stock activity for the six months ended June 30, 2014 included the exercise of 195,807 stock options for $2.6 million and the vesting of 496,191 restricted shares. During the three and six months ended June 30, 2015, the Company granted 998 and 272,424, respectively, equity-based awards to certain employees and the Company's Board of Directors. The vesting of these awards is subject to certain service, performance or market conditions.