X0306 4 2022-12-28 0 0001713952 Vivint Smart Home, Inc. VVNT 0001540967 Garen Daniel C/O VIVINT SMART HOME, INC. 4931 NORTH 300 WEST PROVO UT 84604 0 1 0 0 See Remarks Class A Common Stock 2022-12-28 4 M 0 13043 A 74608 D Class A Common Stock 2022-12-28 4 M 0 8929 A 83537 D Class A Common Stock 2022-12-28 4 F 0 8257 11.91 D 75280 D Restricted Stock Units 2022-12-28 4 M 0 13043 0.00 D Class A Common Stock 13043 247826 D Restricted Stock Units 2022-12-28 4 M 0 8929 0.00 D Class A Common Stock 8929 26786 D In connection with the anticipated transactions contemplated by the Agreement and Plan of Merger, dated as of December 6, 2022, entered into by and among Vivint Smart Home, Inc. (the "Issuer"), NRG Energy, Inc. ("Parent"), and Jetson Merger Sub, Inc., a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub will be merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent, the Board of Directors of the Issuer approved the acceleration of the payment of certain equity awards to mitigate certain adverse tax consequences under Section 280G or 4999 of the Internal Revenue Code of 1986, as amended, that could arise in connection with the Merger. The accelerated settlement described in this Form 4 is contingent upon the Reporting Person's agreement to repay accelerated compensation amounts if the Reporting Person ceases to be employed with the Issuer prior to the date which any of his equity awards described herein would otherwise vest, subject to any outstanding accelerated vesting provisions. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Class A common stock of the Issuer ("Class A Common Stock"). The RSUs will be settled in either Class A Common Stock or cash. Reflects shares of Class A Common Stock withheld to cover the Reporting Person's tax liability in connection with the vesting of RSUs. On August 23, 2021, the Reporting Person was granted 347,826 RSUs that vest in four equal annual installments beginning on August 23, 2022. The number of RSUs reported represents 15% of the number of RSUs that was scheduled to vest on August 23, 2023. The remaining unvested RSUs will vest in accordance with the terms of the initial grant. On March 23, 2022, the Reporting Person was granted 35,715 RSUs that vest in four equal annual installments beginning on March 23, 2023. The number of RSUs reported represents 100% of the number of RSUs that was scheduled to vest on March 23, 2023. The remaining unvested RSUs will vest in accordance with the terms of the initial grant. Title: Chief Ethics and Compliance Officer /s/ Garner B. Meads, III, as Attorney-in-Fact 2022-12-30