3. NET INCOME PER SHARE

The calculation of net income per share attributable to Neogen Corporation follows:


	Three Months Ended November 30,				Six Months Ended November 30,
	2017		2016		2017		2016
	(in thousands, except per share amounts)
Numerator for basic and diluted net income per share:
Net income attributable to Neogen	$	17,100	$	11,151	$	29,014	$	21,032
Denominator for basic net income per share:
Weighted average shares		51,264		50,421		51,109		50,287
Effect of dilutive stock options		697		595		669		624

Denominator for diluted net income per share		51,961		51,016		51,778		50,911

Net income attributable to Neogen per share:
Basic	$	0.33	$	0.22	$	0.57	$	0.42

Diluted	$	0.33	$	0.22	$	0.56	$	0.41

The Board of Directors declared a 4 for 3 stock split effective December 29, 2017. All share and per share amounts in the form 10-Q reflect amounts as if the split took place at the beginning of the periods presented.