EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of earnings per basic and diluted by common class

The following table sets forth basic and diluted net income per common share computational data for the years ended December 31, (shares in thousands, except per share data):



	2019		2018			2017
Net income attributable to American Tower Corporation stockholders	$	1,887.8	$	1,236.4		$	1,238.9
Dividends on preferred stock	—		(9.4		)	(87.4		)
Net income attributable to American Tower Corporation common stockholders	$	1,887.8	$	1,227.0		$	1,151.5

Basic weighted average common shares outstanding	442,319		439,606			428,181
Dilutive securities	3,201		3,354			3,507
Diluted weighted average common shares outstanding	445,520		442,960			431,688
Basic net income attributable to American Tower Corporation common stockholders per common share	$	4.27	$	2.79		$	2.69
Diluted net income attributable to American Tower Corporation common stockholders per common share	$	4.24	$	2.77		$	2.67

Schedule of antidilutive securities excluded from computation of earnings per share

The following shares were not included in the computation of diluted earnings per share because the effect would be anti-dilutive for the years ended December 31, (in thousands, on a weighted average basis):



	2019	2018	2017
Restricted stock awards	2	—	3
Stock options	—	—	4
Preferred stock	—	1,456	14,040