X0306 4 2017-05-11 0 0001607716 Vivint Solar, Inc. VSLR 0001673823 Bywater David 1800 WEST ASHTON BLVD LEHI UT 84043 1 1 0 0 Chief Executive Officer Common Stock 2017-05-11 4 S 0 201000 2.84 D 655874 D Common Stock 2017-05-12 4 S 0 200 2.80 D 655674 D These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.80 to $2.90, inclusive. The reporting person undertakes to provide to Vivint Solar, Inc., any security holder of Vivint Solar, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1). Includes 359,649 restricted stock units ("RSUs") granted on December 14, 2016 pursuant to the Issuer's 2014 Equity Incentive Plan which can only be settled with shares of common stock. 25% of the RSUs vest on December 6, 2017 and thereafter 6.25% of the RSUs vest in equal quarterly installments beginning March 6, 2018, until the RSUs are fully vested; in each such case subject to the Reporting Person's continued service to the Issuer or any subsidiary of the Issuer through each such date. These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units. /s/ DANA C. RUSSELL 2017-05-12