EARNINGS PER COMMON SHARE

3 Months Ended

Mar. 31, 2020

The following table sets forth basic and diluted net income per common share computational data (shares in thousands, except per share data):


	Three Months Ended March 31,
	2020		2019


Net income attributable to American Tower Corporation common stockholders	$	415.0	$	397.4
Basic weighted average common shares outstanding	443,055		441,351
Dilutive securities	2,777		3,270
Diluted weighted average common shares outstanding	445,832		444,621
Basic net income attributable to American Tower Corporation common stockholders per common share	$	0.94	$	0.90
Diluted net income attributable to American Tower Corporation common stockholders per common share	$	0.93	$	0.89

Shares Excluded From Dilutive Effect—The following shares were not included in the computation of diluted earnings per share because the effect would be anti-dilutive (in thousands, on a weighted average basis):


	Three Months Ended March 31,
	2020	2019
Restricted stock units	86	105