UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.     )

Filed by the Registrant  ☒                             Filed by a Party other than the Registrant  ☐

Check the appropriate box:

☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material under §240.14a-12

Vivint Smart Home, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

☒	No fee required.
☐	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)	Title of each class of securities to which transaction applies:
	(2)	Aggregate number of securities to which transaction applies:
	(3)	Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)	Proposed maximum aggregate value of transaction:
	(5)	Total fee paid:
☐	Fee paid previously with preliminary materials.
☐	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
	(1)	Amount Previously Paid:
	(2)	Form, Schedule or Registration Statement No.:
	(3)	Filing Party:
	(4)	Date Filed:

Your Vote Counts! VIVINT SMART HOME, INC. 2021 Annual Meeting Vote by June 1, 2021 11:59 PM ET VIVINT SMART HOME, INC. 4931 NORTH 300 WEST PROVO, UTAH 84604 D51485-P51275 You invested in VIVINT SMART HOME, INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on June 2, 2021. Get informed before you vote View this Notice and the Proxy Statement and 2020 Annual Report, which includes the Annual Report on Form 10-K for the year ended December 31, 2020 online at www.ProxyVote.com OR you can receive a free paper or email copy of the material(s) by requesting prior to May 19, 2021. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www. ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Point your camera here and vote without entering a control number Vote Virtually at the Meeting* June 2, 2021 9:00 AM, Mountain Time The Meeting will be held virtually at: www.virtualshareholdermeeting.com/VVNT2021 A list of the stockholders entitled to vote at the Meeting will be open for examination electronically by any stockholder for any purpose germane to the Meeting during the Meeting at www.virtualshareholdermeeting.com/VVNT2021 when you enter your unique control number indicated above. *To vote your shares during the virtual Meeting, you will need your unique control number indicated above. For instructions on how to attend and participate in the virtual Meeting, visit www.virtualshareholdermeeting.com/VVNT2021.

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Recommends Voting Items 1. Election of Director Nominee: 1a. Peter F. Wallace For 2. Ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021. For 3. Advisory vote to approve the compensation of our named executive officers. For NOTE: To transact such other business as may properly come before the meeting or any adjournment thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. D51486-P51275