Net Income Per Share Attributable to Gilead Common Stockholders

3 Months Ended

Mar. 31, 2020

Net Income Per Share Attributable to Gilead Common Stockholders

NET INCOME PER SHARE ATTRIBUTABLE TO GILEAD COMMON STOCKHOLDERS

Basic net income per share attributable to Gilead common stockholders is calculated based on the weighted-average number of shares of our common stock outstanding during the period. Diluted net income per share attributable to Gilead common stockholders is calculated based on the weighted-average number of shares of our common stock and other dilutive securities outstanding during the period. The potentially dilutive shares of our common stock resulting from the assumed exercise of outstanding stock options and equivalents were determined under the treasury stock method.

Potential shares of common stock excluded from the computation of diluted net income per share attributable to Gilead common shareholders because their effect would have been antidilutive were 14 million and 16 million for the three months ended March 31, 2020 and 2019, respectively.

The following table summarizes the calculation of basic and diluted net income per share attributable to Gilead common stockholders (in millions, except per share amounts):



	Three Months Ended
	March 31,
	2020		2019
Net income attributable to Gilead	$	1,551	$	1,975
Shares used in per share calculation - basic	1,262		1,276
Dilutive effect of stock options and equivalents	8		7
Shares used in per share calculation - diluted	1,270		1,283

Net income per share attributable to Gilead common stockholders - basic	$	1.23	$	1.55
Net income per share attributable to Gilead common stockholders - diluted	$	1.22	$	1.54