X0306 4 2023-03-10 1 0001713952 Vivint Smart Home, Inc. VVNT 0001404073 Blackstone Holdings III L.P. C/O BLACKSTONE INC. 345 PARK AVE. NEW YORK NY 10154 0 0 1 0 0001478809 Blackstone Holdings III GP L.P. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001478815 Blackstone Holdings III GP Management L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001393818 Blackstone Inc. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001404071 Blackstone Group Management L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001070844 SCHWARZMAN STEPHEN A C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 Class A Common Stock 2023-03-10 4 S 0 89889464 12.00 D 0 I See Footnotes Class A Common Stock 2023-03-10 4 S 0 9995784 12.00 D 0 I See Footnotes Class A Common Stock 2023-03-10 4 S 0 4216 12.00 D 0 I See Footnotes The Issuer was acquired by NRG Energy, Inc. ("NRG") pursuant to an Agreement and Plan of Merger dated as of December 6, 2022, pursuant to which each share of Class A Common Stock (other than shares held by the Issuer, NRG or any of their respective wholly-owned subsidiaries and shares owned by stockholders who have properly made and not withdrawn or lost a demand for appraisal rights) was converted into the right to receive $12.00 in cash. Reflects securities held directly by 313 Acquisition LLC. 313 Acquisition LLC is managed by a board of managers and Blackstone Capital Partners VI L.P., as managing member. Reflects securities held directly by BCP Voyager Holdings LP Reflects securities held directly by Blackstone Family Investment Partnership VI L.P. Blackstone Management Associates VI L.L.C. is the general partner of Blackstone Capital Partners VI L.P. and BCP Voyager Holdings LP. BMA VI L.L.C. is the sole member of Blackstone Management Associates VI L.L.C. BCP VI Side-by-Side GP L.L.C. is the general partner of Blackstone Family Investment Partnership VI L.P. Blackstone Holdings III L.P. is the managing member of BMA VI L.L.C. and the sole member of BCP VI Side-by-Side GP L.L.C. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is Blackstone Inc. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4. Form 2 of 2. BLACKSTONE HOLDINGS III L.P., By: Blackstone Holdings III GP L.P., its general partner, By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-03-14 BLACKSTONE HOLDINGS III GP L.P., By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-03-14 BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-03-14 BLACKSTONE INC., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-03-14 BLACKSTONE GROUP MANAGEMENT L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-03-14 /s/ Stephen A. Schwarzman 2023-03-14