X0306
4
2017-12-19
0
0001692819
Vistra Energy Corp
VST
0001711936
HELM SCOTT B
6555 SIERRA DRIVE
IRVING
TX
75039
1
0
0
0
Common Stock
2017-12-19
4
P
0
200
17.83
A
14902
D
The purchase reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan established by the reporting person on November 10, 2017.
/s/ Scott B. Helm
2017-12-20