COMMON STOCK AND EARNINGS PER SHARE

Basic earnings per share attributable to Knoll, Inc. stockholders excludes the dilutive effect of shares and potential shares and units issued under the stock incentive plans. Diluted earnings per share attributable to Knoll, Inc. stockholders includes the effect of shares and potential shares and units 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		Nine months ended
	September 30,	September 30,	September 30,	September 30,
	2014	2013	2014	2013
	(in thousands)		(in thousands)
Weighted-average number of common shares outstanding - basic	47,377	46,916	47,315	46,882
Potentially dilutive shares resulting from stock plans	696	763	718	733
Weighted-average number of common shares outstanding - diluted	48,073	47,679	48,033	47,615
Antidilutive equity awards - Number of shares not included in the weighted-average common shares - diluted	124	164	144	164

NOTE 11. COMMON STOCK AND EARNINGS PER SHARE (continued)

Common stock activity for the nine months ended September 30, 2014 and 2013 included the repurchase of 388,938 shares for $6.4 million and 158,234 shares for $2.7 million, respectively. Common stock activity for the nine months ended September 30, 2014 also included the exercise of 211,057 stock options for $2.8 million and the vesting of 496,191 restricted shares. Common stock activity for the nine months ended September 30, 2013 included the exercise of 190,036 stock options for $2.2 million and the vesting of 111,630 restricted shares. During the three and nine months ended September 30, 2014, the Company granted 25,000 and 1,106,919, 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.