Units Outstanding

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Units Outstanding

Units Outstanding

Changes in AB Units outstanding for the years ended December 31, 2017 and 2016 were as follows:

	2017		2016
Outstanding as of January 1,	268,893,534		272,301,827
Options exercised	1,179,860		358,262
Units issued	5,546,695		4,455,944
Units retired(1)	(6,960,756	)	(8,222,499	)
Outstanding as of December 31,	268,659,333		268,893,534

⁽¹⁾ During 2017 and 2016, we purchased 44,000 and 15,998 AB Units, respectively, in private transactions and retired them.