Changes in Capital Structure (Tables)

6 Months Ended

Jun. 30, 2019

Changes in NRG's common shares issued and outstanding

The following table reflects the changes in NRG's common stock issued and outstanding:



	Issued	Treasury		Outstanding
Balance as of December 31, 2018	420,288,886	(136,638,847	)	283,650,039
Shares issued under LTIPs	1,541,588	—		1,541,588
Shares repurchased	—	(26,621,029	)	(26,621,029	)
Balance as of June 30, 2019	421,830,474	(163,259,876	)	258,570,598
Shares issued under LTIPs subsequent to June 30, 2019	3,827	—		3,827
Shares repurchased subsequent to June 30, 2019	—	(5,586,536	)	(5,586,536	)
Balance as of August 7, 2019	421,834,301	(168,846,412	)	252,987,889

Shares Repurchased

The following repurchases have been made during the six months ended June 30, 2019 and through August 7, 2019 under the 2018 and 2019 share repurchase programs:



	Total number of shares purchased	Amounts paid for shares purchased (in millions)
Board Authorized Share Repurchases
2018 program:
Repurchases made during January-February to complete the 2018 program	6,153,415	$	250
2019 program:
Shares repurchased under February 28, 2019 Accelerated Share Repurchase Agreement	9,438,671	400
Other repurchases	11,028,943	404
Total Share Repurchases during the six months ended June 30, 2019	26,621,029	$	1,054
Repurchases made subsequent to June 30, 2019 to complete the 2019 program	5,586,536	$	196
Total Share Repurchases during the period ended August 7, 2019	32,207,565	$	1,250

Employee Stock Purchase Plan

In March 2019, the Company reopened participation in the ESPP, which allows eligible employees to elect to withhold between 1% and 10% of their eligible compensation to purchase shares of NRG common stock at the lesser of 95% of its market value on the offering date or 95% of the fair market value on the exercise date. An offering date will occur each April 1 and October 1. An exercise date will occur each September 30 and March 31.