Sec Form 4 Filing - 313 Acquisition LLC @ Vivint Smart Home, Inc. - 2021-01-17

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person 313 Acquisition LLC 2. Issuer Name and Ticker or Trading Symbol Vivint Smart Home, Inc. [ VVNT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O THE BLACKSTONE GROUP INC., 345 PARK AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 01/17/2021 (Street) NEW YORK, NY10154 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 01/17/2021 J( 1 ) 2,557,296 D 104,808,958 I See Footnotes ( 3 ) ( 4 ) ( 5 ) Class A Common Stock 01/19/2021 J( 2 ) 119,116 D 104,689,842 I See Footnotes ( 3 ) ( 4 ) ( 5 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or N umber of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other 313 Acquisition LLC C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK, NY10154 X Signatures 313 ACQUISITION LLC, By: Blackstone Capital Partners VI LP, its MM, By:BMA VI LLC, indirect GP, By:Blackstone Holdings III LP, its MM, By: Blackstone Holdings III GP LP, its GP, By: Blackstone Holdings III GP Management LLC, its GP, By: /s/ Tabea Hsi, SMD 01/20/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects a distribution of shares of Class A common stock of the Issuer ("Class A Common Stock") by 313 Acquisition LLC to certain members in connection with the redemption of interests in 313 Acquisition LLC by such members. ( 2 )Reflects a distribution of shares of Class A Common Stock by 313 Acquisition LLC to a member in connection with the redemption of interests in 313 Acquisition LLC by such member. ( 3 )Reflects shares of Class A Common Stock directly held by 313 Acquisition LLC. 313 Acquisition LLC is managed by a board of managers and Blackstone Capital Partners VI L.P. ("BCP VI"), as managing member. ( 4 )Blackstone Management Associates VI L.L.C. is the general partner of BCP VI. BMA VI L.L.C. is the sole member of Blackstone Management Associates VI L.L.C. Blackstone Holdings III L.P. is the managing member of BMA VI 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 The Blackstone Group Inc. The sole holder of Class C common stock of The Blackstone Group 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. ( 5 )The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of any securities reported herein.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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