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 income 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 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
	March 31,	March 31,
	2014	2013
	(in thousands)
Weighted-average number of common shares outstanding - basic	47,200	46,833
Potentially dilutive shares resulting from stock plans	849	739
Weighted-average number of common shares outstanding - diluted	48,049	47,572
Antidilutive equity awards number of shares not included in the weighted-average common shares - diluted	164	164

NOTE 10. COMMON STOCK AND EARNINGS PER SHARE (continued)

Common stock activity for the three months ended March 31, 2014 and 2013 included the repurchase of 237,628 shares for $3.7 million and 133,767 shares for $2.3 million, respectively. Common stock activity for the three months ended March 31, 2014 also included the exercise of 1,590 options for $36.0 thousand and the vesting of 496,191 restricted shares. Common stock activity for the three months ended March 31, 2013 also included the exercise of 183,036 options for $2.1 million and the vesting of 66,630 restricted shares. During the first quarter of 2014, the Company granted 661,919 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.