Earning Per Share (EPS) (Tables)

12 Months Ended

Dec. 31, 2015

Reconcilation of Share Amount Used in Computaion of Basic and Diluted Earnings Per Share

Basic EPS is computed by dividing net income attributable to Entegris, Inc. by the weighted average number of shares of common stock outstanding during each period. The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:

(In thousands)	2015	2014	2013
Basic earnings per share—Weighted common shares outstanding	140,353	139,311	138,950
Weighted common shares assumed upon exercise of options and vesting of restricted stock units	768	751	668
Diluted earnings per share—Weighted common shares outstanding	141,121	140,062	139,618

Shares Excluded Underlying Stock Based Awards from Calculations of Diluted EPS

excluded the following shares underlying stock-based awards from the calculations of diluted EPS because their inclusion would have been anti-dilutive for the years ended December 31, 2015, 2014 and 2013:

(In thousands)	2015	2014	2013
Shares excluded from calculations of diluted EPS	998	1,183	1,248