Earnings per Share

Basic earnings per share attributable to MSA Safety Incorporated common shareholders is computed by dividing net income, after the deduction of preferred stock dividends and undistributed earnings allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share attributable to MSA Safety Incorporated common shareholders assumes the issuance of common stock for all potentially dilutive share equivalents outstanding not classified as participating securities. Participating securities are defined as unvested stock-based payment awards that contain nonforfeitable rights to dividends.



Amounts attributable to MSA Safety Incorporated common shareholders:	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands, except per share amounts)	2018			2017			2018			2017
Net income	$	33,717		$	32,066		$	99,267		$	59,011
Preferred stock dividends	(10		)	(10		)	(30		)	(30		)
Net income available to common equity	33,707			32,056			99,237			58,981
Dividends and undistributed earnings allocated to participating securities	(32		)	(36		)	(94		)	(62		)
Net income available to common shareholders	33,675			32,020			99,143			58,919

Basic weighted-average shares outstanding	38,417			38,074			38,328			37,970
Stock options and other stock compensation	619			628			586			722
Diluted weighted-average shares outstanding	39,036			38,702			38,914			38,692
Antidilutive stock options	—			—			—			—

Earnings per share:
Basic	$	0.88		$	0.84		$	2.59		$	1.55
Diluted	$	0.86		$	0.83		$	2.55		$	1.52