Document:

EX-10.26

 Exhibit 10.26 

Subscription Agreement 

September 15, 2019 
 Mosaic Acquisition Corp.

 375 Park Avenue 
 New York, NY 10152 

Vivint Smart Home, Inc. 
 4931 North 300 West 

Provo, UT 84604 
 Ladies and Gentlemen: 

WHEREAS, in connection with the proposed business combination (the “Transaction”) between Mosaic Acquisition Corp., a
Delaware corporation (the “Company”), Maiden Merger Sub, Inc., a Delaware corporation, and Vivint Smart Home, Inc., a Delaware corporation (“Voyager”), pursuant to an Agreement and Plan of Merger, dated as of
September 15, 2019, among the Company, Merger Sub and Voyager (as may be amended and/or restated, the “Transaction Agreement”), the Company proposes to issue and sell to Drawbridge Special Opportunities Fund LP, a Delaware
limited partnership (the “Subscriber”), 12,500,000 shares of the Company’s Class A common stock, par value $0.0001 per share (the “Class A Common Stock”), in a private placement
transaction (such transaction, the “Subscription”). 
 NOW, THEREFORE, the Subscriber, the Company and Voyager agree as
follows (this “Agreement”): 
 1.    Subscription. Subject to the terms and conditions hereof, the Subscriber
hereby agrees to subscribe for and purchase, and the Company hereby agrees to issue and sell to the Subscriber, 12,500,000 shares of Class A Common Stock (the “Shares”) for an aggregate purchase price of $125,000,000.00 (the
“Subscription Amount”). Notwithstanding anything in this Agreement to the contrary but subject to the following proviso, in the event the Closing occurs and the Subscription Amount is funded in accordance with Section 2 below,
the Subscriber shall have no liability for any claims or losses arising out of this Agreement; provided, in the event the Subscription Amount is not funded in accordance with Section 2 below, the Subscriber’s liability for any
claims or losses arising out of this Agreement shall be limited to the Subscription Amount. 
 2.    Closing. The closing of the
sale of Shares (the “Closing”) contemplated under this Agreement shall occur on the date of, and immediately prior to, the consummation of the Transaction. Upon (i) satisfaction of the conditions set forth in Section 3
below and (ii) written notice from (or on behalf of) the Company to the Subscriber (the “Closing Notice”) that the Company reasonably expects all conditions to the closing of the Transaction to be satisfied on a date that is
not less than two (2) Business Days from the date of the Closing Notice, the Subscriber shall deliver to the Company on or prior to the closing date specified in the Closing Notice (the “Expected Closing Date”; the date on
which the Closing actually occurs, the “Closing Date”) the Subscription Amount by wire transfer of United States dollars in immediately available funds to the account specified by the Company in the Closing Notice

  
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against delivery of the Shares in certificated or book entry form to the Subscriber or to a custodian designated by the Subscriber, as applicable. In the event the closing of the Transaction does
not occur within ten (10) Business Days of the Expected Closing Date, the Company shall promptly (but no later than ten (10) Business Days thereafter) return the Subscription Amount to the Subscriber by wire transfer of United States
dollars in immediately available funds to the account specified by the Subscriber, and any book entries shall be deemed cancelled. Notwithstanding such return or cancellation, (A) a failure to close on the Expected Closing Date shall not, by
itself, be deemed to be a failure of any of the conditions to Closing set forth in Section 3 of this Agreement to be satisfied or waived on or prior to the Closing, and (B) the Subscriber shall still be obligated to consummate the Closing
upon (I) satisfaction of the conditions set forth in Section 3 below and (II) the Company’s delivery to the Subscriber of a new Closing Notice. 

3.    Closing Conditions. 

(a)    The obligation of the Subscriber, on the one hand, and the Company, on the other hand, to effect the Closing is
subject to the satisfaction or written waiver by the Subscriber and the Company prior to the Closing of the following conditions: 

(i)    the applicable waiting period(s) under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the
“HSR Act”), in respect of the Subscription shall have expired or been terminated; 
 (ii)    there
shall not have been enacted or promulgated any order, judgment, injunction, decree, writ, stipulation, determination or award, in each case, entered by or with any court or governmental agency or body, domestic or foreign, nor any statute, rule or
regulation, in either case, enjoining or prohibiting the consummation of the Subscription; and 
 (iii)    the
Transaction as set forth in the Transaction Agreement shall have been consummated substantially concurrently with the Closing. 

(b)    The obligation of the Subscriber to effect the Closing is also subject to the satisfaction or written waiver by the
Subscriber prior to the Closing of the following conditions: 
 (i)    all representations and warranties of the Company
contained in this Agreement shall be true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Company Material Adverse Effect (as defined herein), which representations and
warranties shall be true in all respects) at and as of the date hereof and the Closing Date, and consummation of the Closing shall constitute a reaffirmation by the Company of each of the representations, warranties and agreements of the Company
contained in this Agreement as of the Closing Date, but in each case without giving effect to consummation of the Transaction; provided, in the event this condition would otherwise fail to be satisfied as a result of a breach of one or more
of the representations and warranties of the Company contained in this Agreement and the facts underlying such breach would also cause a condition to Voyager’s obligations under the Transaction Agreement to fail to be satisfied, this condition
shall nevertheless be deemed satisfied in the event Voyager waives such breach under the Transaction Agreement; and 

  
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 (ii)    no amendment or modification of the Transaction Agreement (as
the same exists on the date hereof as provided to the Subscriber) shall have occurred that would reasonably be expected to materially and adversely affect the economic benefits that the Subscriber would reasonably expect to receive under this
Agreement, unless the Subscriber has consented in writing to such amendment or modification. 
 (c)    The obligation of
the Company to effect the Closing is also subject to the satisfaction or written waiver by either the Company or Voyager prior to the Closing of the following condition: 

(i)    all representations and warranties of the Subscriber contained in this Agreement shall be true and correct in all
material respects at and as of the date hereof and the Closing Date, and consummation of the Closing shall constitute a reaffirmation by the Subscriber of each of the representations, warranties and agreements of the Subscriber contained in this
Agreement as of the Closing Date, but in each case without giving effect to consummation of the Transaction. 
 4.    Further
Assurances. At the Closing, the parties hereto shall execute and deliver such additional documents and take such additional actions as the parties reasonably may deem to be practical and necessary in order to consummate the subscription as
contemplated by this Agreement. The Subscriber shall comply promptly but in no event later than ten Business Days (as such term is defined in the Transaction Agreement) after the date hereof with the notification and reporting requirements of the
HSR Act in respect of the Subscription. 
 5.    Company Representations and Warranties. The Company represents and warrants to
the Subscriber that: 
 (a)    The Company is duly incorporated and is validly existing as a corporation in good
standing under the laws of Delaware and has the corporate power and authority to own, lease or operate its assets and properties and to conduct its business as it is now being conducted. 

(b)    The Shares have been duly authorized and, when issued and delivered to the Subscriber against full payment therefor
in accordance with the terms of this Agreement, the Shares will be validly issued, fully paid and non-assessable and will not have been issued in violation of or subject to any preemptive or similar rights
created under the Company’s Certificate of Incorporation or under the laws of the State of Delaware. 
 (c)    This
Agreement has been duly authorized, executed and delivered by the Company and is enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and similar laws affecting
creditors’ rights generally and subject, as to enforceability, to general principles of equity. 
 (d)    The
issuance and sale of the Shares and the performance by the Company of this Agreement and the consummation of the transactions herein will not conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a
default under, or result in the creation or imposition of any lien, charge or encumbrance upon any of the property or assets of the Company or any of its subsidiaries pursuant to the terms of, (i) any indenture, mortgage, deed of trust, loan
agreement, lease, license or other agreement or instrument to which the 

  
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Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company is subject, which would have a
material adverse effect on the ability of the Company to consummate the transactions herein (a “Company Material Adverse Effect”); (ii) result in any violation of the provisions of the organizational documents of the Company; or
(iii) result in any violation of any statute or any judgment, order, rule or regulation of any court or governmental agency or body, domestic or foreign, having jurisdiction over the Company or any of its properties that would have a Company
Material Adverse Effect. 
 (e)    There are no securities or instruments issued by or to which the Company is a party
containing anti-dilution or similar provisions that will be triggered by the issuance of (i) the Shares, or (ii) the securities to be issued pursuant to any other subscription agreement with investors that have agreed to purchase
securities in connection with the Transaction, that have not been or will be waived on or prior to the Closing Date. 

(f)    The Company has not entered into any agreement or arrangement entitling any agent, broker, investment banker,
financial advisor or other person to any broker’s or finder’s fee or any other commission or similar fee in connection with the transactions contemplated by this Agreement for which the Subscriber could become liable (it being understood
that the Subscriber will effectively bear its pro rata share of any such expenses indirectly as a result of its investment in the Company). 

(g)    As of the date of this Agreement, the authorized capital stock of the Company consists of 221,000,000 shares of
capital stock, consisting of (i) 200,000,000 shares of Class A Common Stock, (ii) 20,000,000 shares of Class F Common Stock, par value $0.0001 per share, and (iii) 1,000,000 shares of Preferred Stock. As of the date of this Agreement, the
issued and outstanding capital stock of the Company consists of 43,125,000 shares of capital stock, consisting of (A) 34,500,000 shares of Class A Common Stock, (B) 8,625,000 shares of Class F Common Stock, and (C) no shares of
Preferred Stock. As of the date of this Agreement, the Company has 17,433,334 warrants outstanding, each such warrant entitling the holder thereof to purchase one (1) share of Class A Common Stock. 

6.    Subscriber Representations and Warranties. The Subscriber represents and warrants to the Company that: 

(a)    The Subscriber is (i) a “qualified institutional buyer” (as defined in Rule 144A (“Rule
144A”) under the Securities Act of 1933 as amended (the “Securities Act”)) or (ii) an institutional “accredited investor” (within the meaning of Rule 501(a) under the Securities Act), in each case, satisfying
the requirements set forth on Schedule A, and is acquiring the Shares only for his, her or its own account and not for the account of others, and not on behalf of any other account or person or with a view to, or for offer
or sale in connection with, any distribution thereof in violation of the Securities Act (and shall provide the requested information on Schedule A following the signature page hereto). 

(b)    The Subscriber understands that the Shares are being offered in a transaction not involving any public offering
within the meaning of the Securities Act and that the Shares have not been registered under the Securities Act. The Subscriber understands that the Shares may not 

  
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be resold, transferred, pledged or otherwise disposed of by the Subscriber absent an effective registration statement under the Securities Act except (i) to the Company or a subsidiary
thereof, (ii) to non-U.S. persons pursuant to offers and sales that occur outside the United States within the meaning of Regulation S under the Securities Act or (iii) pursuant to another applicable
exemption from the registration requirements of the Securities Act, and in each of cases (i) and (iii), in accordance with any applicable securities laws of the states and other jurisdictions of the United States, and that any certificates or
book entry account representing the Shares shall contain a legend to such effect substantially consistent with the legend set forth in Section 7(b). The Subscriber acknowledges that the Shares will not be eligible for resale pursuant to Rule
144A. The Subscriber understands and agrees that the Shares will be subject to transfer restrictions and, as a result of these transfer restrictions, the Subscriber may not be able to readily resell the Shares and may be required to bear the
financial risk of an investment in the Shares for an indefinite period of time. The Subscriber understands that it has been advised to consult legal counsel prior to making any offer, resale, pledge or transfer of any of the Shares. 

(c)    The Subscriber understands and agrees that the Subscriber is purchasing Shares directly from the Company. The
Subscriber further acknowledges that there have been no representations, warranties, covenants and agreements made to the Subscriber with respect to the Shares by the Company, or its officers or directors, expressly or by implication, other than
those representations, warranties, covenants and agreements included in this Agreement. 
 (d)    The Subscriber
acknowledges and agrees that the Subscriber has received such information as the Subscriber deems necessary in order to make an investment decision with respect to the Shares. Without limiting the generality of the foregoing, the Subscriber
acknowledges that it has reviewed (i) the Company’s and APX Group Holdings, Inc.’s filings with the Securities and Exchange Commission (“SEC”); and (ii) certain business and legal due diligence materials with
respect to Voyager provided to the Subscriber by the Company. The Subscriber represents and agrees that the Subscriber and the Subscriber’s professional advisor(s), if any, have had the full opportunity to ask such questions, receive such
answers and obtain such information as the Subscriber and the Subscriber’s professional advisor(s), if any, have deemed necessary to make an investment decision with respect to the Shares. 

(e)    The Subscriber became aware of this offering of the Shares solely by means of direct contact between the Subscriber
and the Company or a representative of the Company, and the Shares were offered to the Subscriber solely by direct contact between the Subscriber and the Company or a representative of the Company. The Subscriber did not become aware of this
offering of the Shares, nor were the Shares offered to the Subscriber, by any other means. The Subscriber acknowledges that the Company represents and warrants that the Shares (i) were not offered by any form of general solicitation or general
advertising and (ii) are not being offered in a manner involving a public offering under, or in a distribution in violation of, the Securities Act, or any state securities laws. 

(f)    The Subscriber acknowledges that it is aware that there are substantial risks incident to the purchase and
ownership of the Shares, including those set forth in the Company’s and APX Group Holdings, Inc.’s filings with the SEC. The Subscriber has such knowledge and experience in financial and business matters as to be capable of evaluating the
merits and risks of an investment in the Shares, and the Subscriber has sought such accounting, legal and tax advice as the Subscriber has considered necessary to make an informed investment decision. 

  
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 (g)    Alone, or together with any professional advisor(s), the
Subscriber has adequately analyzed and fully considered the risks of an investment in the Shares and determined that the Shares are a suitable investment for the Subscriber and that the Subscriber is able at this time and in the foreseeable future
to bear the economic risk of a total loss of the Subscriber’s investment in the Company. The Subscriber acknowledges specifically that a possibility of total loss exists. 

(h)    In making its decision to purchase the Shares, the Subscriber has relied solely upon independent investigation made
by the Subscriber. Without limiting the generality of the foregoing, the Subscriber has not relied on any statements or other information provided by anyone other than the Company concerning the Company or the Shares or the offer and sale of the
Shares. 
 (i)    The Subscriber understands and agrees that no federal or state agency has passed upon or endorsed the
merits of the offering of the Shares or made any findings or determination as to the fairness of this investment. 

(j)    The Subscriber has been duly formed or incorporated and is validly existing in good standing under the laws of its
jurisdiction of incorporation or formation. 
 (k)    The execution, delivery and performance by the Subscriber of this
Agreement are within the powers of the Subscriber, have been duly authorized and will not constitute or result in a breach or default under or conflict with any order, ruling or regulation of any court or other tribunal or of any governmental
commission or agency, or any agreement or other undertaking, to which the Subscriber is a party or by which the Subscriber is bound, and will not violate any provisions of the Subscriber’s charter documents, including, without limitation, its
incorporation or formation papers, bylaws, indenture of trust or partnership or operating agreement, as may be applicable, or any other agreements to which it is party or to which its assets or business are subject. The signature of the Subscriber
on this Agreement is genuine, and the signatory has been duly authorized to execute the same, and this Agreement constitutes a legal, valid and binding obligation of the Subscriber, enforceable against the Subscriber in accordance with its terms,
subject to applicable bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and similar laws affecting creditors’ rights generally and subject, as to enforceability, to general principles of equity. 

(l)    Neither the due diligence investigation conducted by the Subscriber in connection with making its decision to
acquire the Shares nor any representations and warranties made by the Subscriber herein shall modify, amend or affect the Subscriber’s right to rely on the truth, accuracy and completeness of the Company’s representations and warranties
contained herein. 
 (m)    The Subscriber is not (i) a person or entity named on the List of Specially Designated
Nationals and Blocked Persons administered by the U.S. Treasury Department’s Office of Foreign Assets Control (“OFAC”) or in any Executive Order issued by the President of the United States and administered by OFAC
(“OFAC List”), or a person or entity prohibited by any OFAC sanctions program, (ii) a Designated National as defined in the Cuban Assets Control 

  
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Regulations, 31 C.F.R. Part 515, or (iii) a non-U.S. shell bank or providing banking services indirectly to a
non-U.S. shell bank. The Subscriber agrees to provide law enforcement agencies, if requested thereby, such records as required by applicable law, provided that the Subscriber is permitted to do so under
applicable law. If the Subscriber is a financial institution subject to the Bank Secrecy Act (31 U.S.C. Section 5311 et seq.) (the “BSA”), as amended by the USA PATRIOT Act of 2001 (the “PATRIOT Act”), and its
implementing regulations (collectively, the “BSA/PATRIOT Act”), the Subscriber maintains policies and procedures reasonably designed to comply with applicable obligations under the BSA/PATRIOT Act. To the extent required by law, it
maintains policies and procedures reasonably designed for the screening of its investors against the OFAC sanctions programs, including the OFAC List. To the extent required by law, it maintains policies and procedures reasonably designed to ensure
that the funds held by the Subscriber and used to purchase the Shares were legally derived. 
 (n)    Subject to the
satisfaction of the terms and conditions of this Agreement, the Subscriber will have sufficient funds to pay the Subscription Amount pursuant to Section 2 at the Closing. 

(o)    None of Fortress Mosaic Investor LLC, its Ultimate Parent Entity, or any of their respective subsidiaries or
Associates has an interest of five percent (5%) or greater in an entity that competes with Voyager in the field of: (i) home security monitoring services (including doorbell cameras), (ii) home energy management technology (i.e., auto-adjusting
lighting or climate control), or (iii) “smart home” centralized home automation systems. For purposes of this Section 6(o), “Ultimate Parent Entity” and “Associate” are defined pursuant to 16 C.F.R. §
801.1(a)(3) and 16 C.F.R. § 801.1(d)(2), respectively. 
 (p)    The Subscriber acknowledges and agrees that this
Agreement is being entered into in order to induce Voyager to enter into the Transaction Agreement and that Voyager is a third-party beneficiary of the Subscriber’s commitment hereunder. 

7.    Delivery of Securities. 

(a)    The Company shall register the Subscriber as the owner of the Shares purchased by the Subscriber hereunder
(individually or collectively, the “Securities”) in the appropriate books and records of the Company and with the Company’s transfer agent in certificated form or by book entry on or promptly after (but in no event more than
two (2) Business Days after) the date of the Closing. 
 (b)    Each register and book entry for the Securities
shall contain a notation, and each certificate (if any) evidencing the Securities shall be stamped or otherwise imprinted with a legend, in substantially the following form: 

“THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY
STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT AND LAWS. 

  
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 THE SALE, PLEDGE, HYPOTHECATION, OR TRANSFER OF THE SECURITIES REPRESENTED HEREBY ARE
SUBJECT TO THE TERMS AND CONDITIONS OF A CERTAIN SUBSCRIPTION AGREEMENT BY AND AMONG THE HOLDER AND THE OTHER PARTIES THERETO. COPIES OF SUCH AGREEMENT MAY BE OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY. 

(c)    If the Securities are eligible to be sold without restriction under, and without the Company being in compliance
with the current public information requirements of, Rule 144 under the Securities Act, then at the Subscriber’s request, the Company will cause the Company’s transfer agent to remove the legend set forth in Section 7(b). In
connection therewith, if required by the Company’s transfer agent, the Company will promptly cause an opinion of counsel to be delivered to and maintained with its transfer agent, together with any other authorizations, certificates and
directions required by the transfer agent that authorize and direct the transfer agent to issue such Securities without any such legend. 

8.    Stockholders Agreement; Registration Rights Agreement. The Subscriber, the Company and the other parties thereto have entered
into a stockholders agreement concurrently with the execution of this Agreement attached hereto as Exhibit 1. The Subscriber, the Company and the other parties thereto have entered into a registration rights agreement
concurrently with the execution of this Agreement attached hereto as Exhibit 2. 
 9.    Termination.
This Agreement shall terminate and be void and of no further force and effect, and all rights and obligations of the parties hereunder shall terminate without any further liability on the part of any party in respect thereof, upon the earlier to
occur of (a) such date and time as the Transaction Agreement is terminated in accordance with its terms, (b) the mutual written agreement of each of the parties hereto and Voyager to terminate this Agreement or (c) if any of the
conditions to Closing set forth in Section 3 of this Agreement are not satisfied or waived on or prior to the Closing and, as a result thereof, the transactions contemplated by this Agreement are not consummated at the Closing. The Company
shall promptly notify the Subscriber of (i) the termination of the Transaction Agreement promptly after the termination of such agreement, (ii) any amendment to the Transaction Agreement and (iii) any waiver of any of the conditions
specified in Article IX of the Transaction Agreement. 
 10.    Trust Account Waiver. The Subscriber acknowledges that the
Company is a blank check company with the powers and privileges necessary or convenient to the conduct, promotion or attainment of the business or purposes of the Company, including, but not limited to, effecting a merger, capital stock exchange,
asset acquisition, stock purchase, reorganization or similar business combination involving the Company and one or more businesses. The Subscriber hereby acknowledges that the Company established the trust account at J.P. Morgan Chase Bank, N.A.
(the “Trust Account”), maintained by Continental Stock Transfer & Trust Company, a New York corporation, acting as trustee, pursuant to the Investment Management Trust Agreement, dated October 18, 2017, by and between
the Company and the trustee, for the benefit of its public shareholders upon the closing of its initial public offering. For and in consideration of the Company entering into this Agreement, the receipt and sufficiency of which are hereby
acknowledged, the Subscriber hereby irrevocably waives any and all right, title and interest, or any claim of any kind it has or may have in the future, in or to any monies held in the Trust Account, and agrees not to seek recourse against the Trust
Account as a result of, or arising out of, this Agreement. 

  
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 11.    Miscellaneous. 

(a)    The Company may not assign either this Agreement or any of its rights, interests or obligations hereunder without
the prior written consent of the Subscriber and Voyager. The Subscriber may assign this Agreement and any of its rights, interests or obligations hereunder (including the Subscriber’s rights to purchase the Shares) to Fortress Mosaic Investor
LLC; provided, however, that any such assignment shall not relieve the Subscriber of its obligations under this Agreement in the event that such assignee of the Subscriber fails to perform its obligations hereunder and that, without
the prior written consent of the Company and Voyager, such assignee shall not be permitted to further assign any such rights, interests or obligations assigned to it. 

(b)    The Company may request from the Subscriber such additional information as the Company may deem necessary to
evaluate the eligibility of the Subscriber to acquire the Shares, and the Subscriber shall provide such information as may reasonably be requested, to the extent readily available and to the extent consistent with its internal policies and
procedures. 
 (c)    The Subscriber acknowledges that the Company will rely on the acknowledgments, understandings,
agreements, representations and warranties contained in this Agreement. Prior to the Closing, the Subscriber agrees to promptly notify the Company if any of the acknowledgments, understandings, agreements, representations and warranties set forth
herein are no longer accurate. The Subscriber further acknowledges and agrees that Voyager is a third-party beneficiary of the representations and warranties of the Subscriber contained in Section 6 of this Agreement. 

(d)    Each of the Company and Voyager is entitled to rely upon this Agreement and is irrevocably authorized to produce
this Agreement or a copy hereof to any interested party in any administrative or legal proceeding or official inquiry with respect to the matters covered hereby. 

(e)    All the agreements, representations and warranties made by each party hereto in this Agreement shall survive the
Closing. 
 (f)    This Agreement may not be modified or waived (i) except by an instrument in writing, signed by
the party against whom enforcement of such modification or waiver is sought and (ii) without the prior written consent of Voyager. 

(g)    This Agreement constitutes the entire agreement, and supersedes all other prior agreements, understandings,
representations and warranties, both written and oral, among the parties, with respect to the subject matter hereof. This Agreement shall not confer any rights or remedies upon any person other than the parties hereto, and their respective
successors and assigns; provided, that, subject to the terms and conditions of this Agreement and the Transaction Agreement, Voyager shall have the right, as a third party beneficiary of this Agreement, to obtain specific performance of the
Subscriber’s obligation to cause the Subscription Amount to be funded when due hereunder (including, to the extent necessary to cause such funding, to cause the Subscriber to use reasonable best efforts to enforce contractual commitments
available to the 

  
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Subscriber), but solely to the extent the Company has the right hereunder to enforce such obligation pursuant to the terms, and subject to the conditions, hereof and solely to the extent required
to give effect to a grant of specific performance to Voyager under and in accordance with the terms and conditions of the Transaction Agreement (as in effect on the date hereof), and for no other purpose, which right of Voyager as third party
beneficiary shall be the sole and exclusive direct or indirect right and remedy (whether at law or in equity) available to Voyager and its security holders and affiliates (or available to any Person claiming by, through, or on behalf or for the
benefit of any of them) against the Subscriber or any of its direct or indirect equityholders, management companies, affiliates, agents, attorneys, or representatives, and any financial advisor or lender or any affiliate of any of the foregoing,
with respect to any claim (whether sounding in contract or tort, under statute or otherwise) arising under or related to the Transaction Agreement or this Agreement or the transactions contemplated hereby or thereby or related negotiations,
including without limitation in connection with any beach or alleged breach by the Company of any obligation under or related to the Transaction Agreement (whether or not any such breach or alleged breach is caused by the Subscriber’s breach of
its obligations under this Agreement) and any breach or alleged breach by the Subscriber of any obligation under or related to this Agreement. 

(h)    Except as otherwise provided herein, this Agreement shall be binding upon, and inure to the benefit of, the parties
hereto and their heirs, executors, administrators, successors, legal representatives, and permitted assigns, and the agreements, representations, warranties, covenants and acknowledgments contained herein shall be deemed to be made by, and be
binding upon, such heirs, executors, administrators, successors, legal representatives and permitted assigns. 

(i)    If any provision of this Agreement shall be invalid, illegal or unenforceable, the validity, legality or
enforceability of the remaining provisions of this Agreement shall not in any way be affected or impaired thereby and shall continue in full force and effect. 

(j)    This Agreement may be executed in one or more counterparts (including by facsimile or electronic mail or in .pdf)
and by different parties in separate counterparts, with the same effect as if all parties hereto had signed the same document. All counterparts so executed and delivered shall be construed together and shall constitute one and the same agreement.

 (k)    The parties hereto agree that irreparable damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that the parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the terms and provisions of this Agreement, this being in addition to any other remedy to which such party is entitled at law, in equity, in contract, in tort or otherwise. 

(l)    THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF DELAWARE,
WITHOUT REGARD TO THE PRINCIPLES OF CONFLICTS OF LAWS THAT WOULD OTHERWISE REQUIRE THE APPLICATION OF THE LAW OF ANY OTHER STATE. EACH PARTY HERETO HEREBY WAIVES ANY RIGHT TO A JURY TRIAL IN CONNECTION WITH ANY LITIGATION PURSUANT TO THIS AGREEMENT
AND THE TRANSACTIONS CONTEMPLATED HEREBY. 

  
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 (m)    Each party hereto hereby, and any person asserting rights as a
third party beneficiary hereunder may do so only if he, she or it, irrevocably agrees that any claims shall be brought only to the exclusive jurisdiction of the courts of the State of Delaware located in New Castle County or, if such courts decline
to exercise jurisdiction, any federal or state court located in New York County, New York, and each party hereby consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit, action or proceeding
and irrevocably waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding in any such court or that any such suit, action or proceeding that is
brought in any such court has been brought in an inconvenient forum. During the period a claim that is filed in accordance with this Section 11(m) is pending before a court, all actions, suits or proceedings with respect to such claim or any
other claim, including any counterclaim, cross-claim or interpleader, shall be subject to the exclusive jurisdiction of such court. Each party and any person asserting rights as a third party beneficiary may do so only if he, she or it hereby
waives, and shall not assert as a defense in any claim, that (a) such party is not personally subject to the jurisdiction of the above named courts for any reason, (b) such action, suit or proceeding may not be brought or is not
maintainable in such court, (c) such party’s property is exempt or immune from execution, (d) such action, suit or proceeding is brought in an inconvenient forum, or (e) the venue of such action, suit or proceeding is improper. A
final judgment in any action, suit or proceeding described in this Section 11(m) following the expiration of any period permitted for appeal and subject to any stay during appeal shall be conclusive and may be enforced in other jurisdictions by
suit on the judgment or in any other manner provided by law. 
 12.    Non-Reliance and
Exculpation. The Subscriber acknowledges that it is not relying upon, and has not relied upon, any statement, representation or warranty made by any person, firm or corporation (including, without limitation, Voyager, any of its affiliates or
any of its or their control persons, officers, directors and employees), other than the statements, representations and warranties contained in this Agreement, in making its investment or decision to invest in the Company. The Subscriber agrees that
neither (i) any other purchaser pursuant to this Agreement or any other agreement related to the private placement of the Shares (including the respective controlling persons, officers, directors, partners, agents, or employees of any such
purchaser) nor (ii) Voyager, its affiliates or any of its or their affiliates’ control persons, officers, directors or employees, shall be liable to any other purchaser pursuant to this Agreement or any other Agreement related to the
private placement of the Shares for any action heretofore or hereafter taken or omitted to be taken by any of them in connection with the purchase of the Shares. 

[SIGNATURE PAGES FOLLOW] 

  
 11 

 IN WITNESS WHEREOF, the Subscriber has executed or caused this Agreement to be
executed by its duly authorized representative as of the date set forth above. 
  

			
	 Name of Subscriber:
  

DRAWBRIDGE SPECIAL OPPORTUNITIES FUND LP
  

By: Drawbridge Special Opportunities GP LLC, its General Partner

 

			
	By:	 	 /s/ Marc Furstein

	Name:	 	Marc Furstein
	Title:	 	Chief Operating Officer

 IN WITNESS WHEREOF, the Company has executed or caused this Agreement to be executed
by its duly authorized representative as of the date set forth above. 
  

			
	MOSAIC ACQUISITION CORP.
		
	By:	 	 /s/ David M. Maura

	Name:	 	David M. Maura
	Title:	 	Chairman, President and Chief Executive Officer

 IN WITNESS WHEREOF, Voyager has executed or caused this Agreement to be executed by
its duly authorized representative as of the date set forth above. 
  

			
	VIVINT SMART HOME, INC.
		
	By:	 	 /s/ Alex J. Dunn

	Name:	 	Alex J. Dunn
	Title:	 	President

 SCHEDULE A 

ELIGIBILITY REPRESENTATIONS OF THE SUBSCRIBER 
  

	A.	 QUALIFIED INSTITUTIONAL BUYER STATUS (Please check the applicable subparagraphs): 

 

	 	1.	 ☐ We are a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act of
1933, as amended (the “Securities Act”)). 

  

	B.	 B. INSTITUTIONAL ACCREDITED INVESTOR STATUS (Please check the applicable subparagraphs): 

 

	 	1.	 ☐ We are an “accredited investor” (within the meaning of Rule 501(a) under the Securities Act.)
for one or more of the following reasons (Please check the applicable subparagraphs): 

  

	 	☐	 We are a bank, as defined in Section 3(a)(2) of the Securities Act or any savings and loan association or
other institution as defined in Section 3(a)(5)(A) of the Securities Act, whether acting in an individual or a fiduciary capacity. 

  

	 	☐	 We are a broker or dealer registered under Section 15 of the Securities Exchange Act of 1934, as amended.

  

	 	☐	 We are an insurance company, as defined in Section 2(13) of the Securities Act. 

 

	 	☐	 We are an investment company registered under the Investment Company Act of 1940 or a business development
company, as defined in Section 2(a)(48) of that act. 

  

	 	☐	 We are a Small Business Investment Company licensed by the U.S. Small Business Administration under
Section 301(c) or (d) of the Small Business Investment Act of 1958. 

  

	 	☐	 We are a plan established and maintained by a state, its political subdivisions or any agency or
instrumentality of a state or its political subdivisions for the benefit of its employees, if the plan has total assets in excess of $5 million. 

  

	 	☐	 We are an employee benefit plan within the meaning of Title I of the Employee Retirement Income Security Act of
1974, if the investment decision is being made by a plan fiduciary, as defined in Section 3(21) of such act, and the plan fiduciary is either a bank, a savings and loan association, an insurance company, or a registered investment adviser, or
if the employee benefit plan has total assets in excess of $5 million. 

	 	☐	 We are a private business development company, as defined in Section 202(a)(22) of the Investment Advisers
Act of 1940. 

  

	 	☐	 We are a corporation, Massachusetts or similar business trust, or partnership, or an organization described in
Section 501(c) (3) of the Internal Revenue Code of 1986, as amended, that was not formed for the specific purpose of acquiring the Securities, and that has total assets in excess of $5 million. 

 

	 	☐	 We are a trust with total assets in excess of $5 million not formed for the specific purpose of acquiring
the Securities, whose purchase is directed by a sophisticated person as described in Rule 506(b)(2)(ii) under the Securities Act. 

  

	 	☐	 We are an entity in which all of the equity owners are accredited investors. 

 

	C.	 AFFILIATE STATUS 

(Please check the applicable box) 

THE SUBSCRIBER: 
  

	 	☐	 is: 

  

	 	☐	 is not: 

an “affiliate” (as defined in Rule 144 under the Securities Act) of the Company or acting on behalf of an affiliate of the Company.

 This page should be completed by the Subscriber and constitutes a part of the Agreement 

 EXHIBIT 1 

STOCKHOLDERS AGREEMENT 

[attached] 

 EXHIBIT 2 

REGISTRATION RIGHTS AGREEMENT 

[attached]EX-10.27

 Exhibit 10.27 

CONFIDENTIALITY AND LOCKUP AGREEMENT 

This Confidentiality and Lockup Agreement is dated as of September 15, 2019 and is between Mosaic Acquisition Corp., a Delaware
corporation (“Mosaic”), and each of the stockholder parties identified on Exhibit A hereto and the other persons who enter into a joinder to this Agreement substantially in the form of Exhibit B hereto with the Company in
order to become a “Stockholder Party” for purposes of this Agreement (collectively, the “Stockholder Parties”). Capitalized terms used but not defined herein shall have the meanings assigned to them in the
Stockholders Agreement (as defined below). 
 BACKGROUND: 

WHEREAS, the Stockholder Parties own or will own equity interests in Legacy Vivint and/or Mosaic; 

WHEREAS, Legacy Vivint and Mosaic are executing the Merger Agreement on the date hereof pursuant to which a subsidiary of Mosaic will
merge with and into Legacy Vivint and Mosaic will be renamed Vivint Smart Home, Inc.; 
 WHEREAS, the Stockholder Parties identified
on Exhibit A hereto are also executing the Stockholders Agreement on the date hereof; and 
 WHEREAS, in connection with the Merger
and effective upon the consummation thereof, the parties hereto wish to set forth herein certain understandings between such parties with respect to confidentiality and restrictions on transfer of equity interests in Mosaic. 

NOW, THEREFORE, the parties agree as follows: 

ARTICLE I 
 INTRODUCTORY
MATTERS 
 1.1. Defined Terms. In addition to the terms defined elsewhere herein, the following terms have the following
meanings when used herein with initial capital letters: 
 “Agreement” means this Confidentiality and Lockup
Agreement, as the same may be amended, supplemented, restated or otherwise modified from time to time in accordance with the terms hereof. 

“Confidential Information” means any information concerning the Company or its Subsidiaries that is furnished after
the date of this Agreement by or on behalf of the Company or its designated representatives to a Stockholder Party or its designated representatives, together with any notes, analyses, reports, models, compilations, studies, documents, records or
extracts thereof containing, based upon or derived from such information, in whole or in part; provided, however, that Confidential Information does not include information: 

(i) that is or has become publicly available other than as a result of a disclosure by the receiving Stockholder Party or its
designated representatives in violation of this Agreement; 

 (ii) that was already known to the receiving Stockholder Party or its
designated representatives or was in the possession of the receiving Stockholder Party or its designated representatives prior to its being furnished by or on behalf of the Company or its designated representatives; 

(iii) that is received by the receiving Stockholder Party or its designated representatives from a source other than the
Company or its designated representatives, provided that the source of such information was not actually known by the receiving Stockholder Party or designated representative to be bound by a confidentiality agreement with, or other contractual
obligation of confidentiality to, the Company; 
 (iv) that was independently developed or acquired by the receiving
Stockholder Party or its designated representatives or on its or their behalf without the violation of the terms of this Agreement; or 

(v) that the receiving Stockholder Party or its designated representatives is required, in the good faith determination of such
receiving Stockholder Party or designated representative, to disclose by applicable Law, regulation or legal process, provided that such receiving Stockholder Party or designated representative takes reasonable steps to minimize the extent of any
such required disclosure, provided further that no such steps to minimize disclosure shall be required where disclosure is made (i) in response to a request by a regulatory or self-regulatory authority or (ii) in connection with a routine
audit or examination by a bank examiner or auditor and such audit or examination does not specifically reference the Company or this Agreement. 

“covered shares” has the meaning set forth in Section 3.1. 

“designated representatives” has the meaning set forth in the Stockholders Agreement. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder, as the same may be amended from time to time. 
 “immediate family” has the meaning set forth in
Section 3.1(b). 
 “Lock-Up Period” has the meaning set forth in
Section 3.1(a). 
 “Non-Recourse Party” has the meaning set forth in
Section 4.16. 
 “Permitted Transferees” means with respect to a Stockholder Party, a Transferee of shares that
agrees to become party to, and to be bound to the same extent as its Transferor by the terms of, this Agreement. 

“shares” has the meaning set forth in the Stockholders Agreement. 

“Stockholder Parties” has the meaning set forth in the Preamble. 

“Stockholders Agreement” means the Stockholders Agreement, dated as of September 15, 2019, by and among Legacy
Vivint, Mosaic and the other parties thereto. 

  
 2 

 “Stockholders Agreement Parties” means the “Stockholder
Parties” as defined in the Stockholders Agreement. 
 1.2. Construction. The language used in this Agreement will be
deemed to be the language chosen by the parties to express their mutual intent, and no rule of strict construction will be applied against any party. Unless the context otherwise requires: (a) “or” is disjunctive but not exclusive,
(b) words in the singular include the plural, and in the plural include the singular, and (c) the words “hereof”, “herein”, and “hereunder” and words of similar import when used in this Agreement refer to this
Agreement as a whole and not to any particular provision of this Agreement, and Section references are to sections of this Agreement unless otherwise specified. 

ARTICLE II 

CONFIDENTIALITY 
 2.1.
Confidentiality. Each Stockholder Party agrees that it will, and will direct its designated representatives to, keep confidential and not disclose any Confidential Information; provided, however, that each Stockholder
Party and its designated representatives may disclose Confidential Information to the Stockholders Agreement Parties and the Stockholder Designees and (a) to its designated representatives or (b) as the Company may otherwise consent in
writing; provided, further, however, that each Stockholder Party agrees to be responsible for any breaches of this Article II by such Stockholder Party’s designated representatives. 

ARTICLE III 
 LOCKUP

 3.1. Lockup. (a) During the period beginning on the effective time of the Merger and continuing to and including
the date that is two (2) years after the Closing Date (the “Lock-Up Period”), each Stockholder Party agrees not to, directly or indirectly, offer, sell, contract to sell, pledge,
grant any option to purchase, make any short sale or otherwise dispose of any shares, or any options or warrants to purchase any shares, or any securities convertible into, exchangeable for or that represent the right to receive shares, or any
interest in any of the foregoing, whether now owned or hereinafter acquired, owned directly by the undersigned (including holding as a custodian) or with respect to which the undersigned has beneficial ownership within the rules and regulations of
the U.S. Securities and Exchange Commission (collectively, the “covered shares”). The foregoing restriction is expressly agreed to preclude such Stockholder Parties from engaging in any hedging or other transaction which is
designed to or which reasonably could be expected to lead to or result in a sale or disposition of the covered shares even if such covered shares would be disposed of by someone other than such Stockholder Parties. Such prohibited hedging or other
transactions would include, without limitation, any short sale or any purchase, sale or grant of any right (including, without limitation, any put or call option) with respect to any of the covered shares or with respect to any security that
includes, relates to, or derives any significant part of its value from such covered shares. 

  
 3 

 (b) Notwithstanding the foregoing, a Stockholder Party may transfer or dispose of its shares
(i) by will or intestacy, (ii) as a bona fide gift or gifts, including to charitable organizations, (iii) to any trust, partnership, limited liability company or other entity for the direct or indirect benefit of the undersigned or
the immediate family of the undersigned (for purposes of this Section 3.1, “immediate family” shall mean any relationship by blood, current or former marriage or adoption, not more remote than first cousin), (iv) to any
immediate family member or other dependent, (v) as a distribution to limited partners, members or stockholders of such Stockholder Party, (vi) to its Affiliated investment fund or other Affiliated entity controlled or managed by such
Stockholder Party or its Affiliates, (vii) to a nominee or custodian of a Person to whom a disposition or transfer would be permissible under clauses (i) through (vi) above, (viii) pursuant to an order or decree of a Governmental
Authority, (ix) from an executive officer to the Company or its Subsidiary or parent entities upon death, disability or termination of employment, in each case, of such executive officer, (x) pursuant to a bona fide third-party tender
offer, merger, consolidation or other similar transaction in each case made to all holders of the shares involving a Change of Control (as defined below) (including negotiating and entering into an agreement providing for any such transaction),
provided that in the event that such tender offer, merger, consolidation or other such transaction is not completed, such Stockholder Party’s shares shall remain subject to the provisions of this Section 3.1, (xi) to the Company
(1) pursuant to the exercise, in each case on a “cashless” or “net exercise” basis, of any option to purchase shares granted by the Company pursuant to any employee benefit plans or arrangements which are set to expire
during the Lock-Up Period, where any shares received by the undersigned upon any such exercise will be subject to the terms of this Section 3.1, or (2) for the purpose of satisfying any withholding
taxes (including estimated taxes) due as a result of the exercise of any option to purchase shares or the vesting of any restricted stock awards granted by the Company pursuant to employee benefit plans or arrangements which are set to expire or
automatically vest during the Lock-Up Period, in each case on a “cashless” or “net exercise” basis, where any shares received by such Stockholder Party upon any such exercise or vesting
will be subject to the terms of this Section 3.1, (xii) with the prior written consent of the Company, (xiii) pursuant to sales or transfers in connection with the exercise of such Stockholder Party’s piggyback rights pursuant to the
Registration Rights Agreement , pursuant to sales or transfers in a sale by 313 Acquisition LLC that is otherwise permitted by its Confidentiality and Lockup Agreement with the Company that 313 Acquisition LLC has structured as a redemption of
interests in 313 Acquisition LLC for the share underlying such interests and pursuant to sales or transfers of shares transferred to the Pedersen Holders in connection with a redemption in lieu of participating in a sale by 313 Acquisition LLC as
described in Exhibit E to the Merger Agreement, (xiv) in connection with the sale or transfer, following the date that is one (1) year after the Closing Date, of up to 10% of the shares underlying the vested Class A Units held by the
Pedersen Holders in the aggregate immediately following the consummation of the Merger or (xv) sales or transfers of interests in 313 Acquisition LLC in compliance with the limited liability company agreement and securityholders agreement of
313 Acquisition LLC; provided that: 
 (i) in the case of each transfer or distribution pursuant to clauses
(ii) through (vii) above, (a) each donee, trustee, distributee or transferee, as the case may be, agrees to be bound in writing by the restrictions set forth in this Section 3.1; and (b) any such transfer or distribution shall
not involve a disposition for value, other than with respect to any such transfer or distribution for which the transferor or distributor receives (x) equity interests of such transferee or (y) such transferee’s interests in the
transferor; 

  
 4 

 (ii) in the case of each transfer or distribution pursuant to clauses
(ii) through (vii) above, if any public reports or filings (including filings under Section 16(a) of the Exchange Act) reporting a reduction in beneficial ownership of shares shall be required or shall be voluntarily made during the Lock-Up Period (a) such Stockholder Party shall provide the Company prior written notice informing them of such report or filing and (b) such report or filing shall disclose that such donee, trustee,
distributee or transferee, as the case may be, agrees to be bound in writing by the restrictions set forth herein; 
 (iii)
for purposes of clause (x) above, “Change of Control” shall mean the transfer to or acquisition by (whether by tender offer, merger, consolidation, division or other similar transaction), in one transaction or a series of related
transactions, a Person or group of Affiliated Persons (other than the 313 Acquisition Entities or an underwriter pursuant to an offering), of the Company’s voting securities if, after such transfer or acquisition, such Person or group of
Affiliated Persons would Beneficially Own more than 50% of the outstanding voting securities of the Company (or the surviving entity); 

(iv) any consent granted to a 313 Acquisition Entity pursuant to Section 3.1(b)(xii) of the Confidentiality and Lockup
Agreement to which a 313 Acquisition Entity is party with the Company shall be automatically granted to all Stockholder Parties; 

(v) any consent granted to a PIPE Holder pursuant to Section 3.1(b)(xii) of the Confidentiality and Lockup Agreement to
which a PIPE Holder is party with the Company shall be automatically granted to all PIPE Holders; and 
 (vi) any shares sold
or transferred by Pedersen Holders pursuant to clause (xiii) above shall reduce the number of shares that the Pedersen Holders may sell or transfer pursuant to clause (xiv). 

(c) Each Stockholder Party shall be permitted to enter into a trading plan established in accordance with Rule
10b5-1 under the Exchange Act during the applicable Lock-Up Period so long as no transfers or other dispositions of such Stockholder Party’s shares in contravention
of Section 3.1 are effected prior to the expiration of the applicable Lock-Up Period. 
 (d)
Each Stockholder Party also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the covered shares except in compliance with the foregoing restrictions and to
the addition of a legend to such Stockholder Party’s shares describing the foregoing restrictions. 
 ARTICLE IV 

GENERAL PROVISIONS 
 4.1.
Termination. Subject to Section 4.14 or the early termination of any provision as a result of an amendment to this Agreement agreed to by the Board and the Stockholder Parties, as provided under Section 4.3, this Agreement
(other than Article IV hereof), shall terminate with respect to each Stockholder Party and its Permitted Transferees at such time as such Stockholder Party and its Permitted Transferees collectively Beneficially Own less than 5% of the outstanding
shares; provided that this Agreement shall not terminate with respect to any Stockholder Party or Permitted Transferee thereof subject to the restrictions in Section 3.1, until such time as such Stockholder Party or Permitted Transferee
is no longer subject to the restrictions contained in Section 3.1. 

  
 5 

 4.2. Notices. Any notice, designation, request, request for consent or consent
provided for in this Agreement shall be in writing and shall be either personally delivered, or mailed first class mail (postage prepaid) or sent by reputable overnight courier service (charges prepaid) to the Company at the address set forth below
and to any other recipient at the address indicated on the Company’s records, or at such address or to the attention of such other Person as the recipient party has specified by prior written notice to the sending party. Notices will be deemed
to have been given hereunder when sent by facsimile (receipt confirmed) or delivered personally, five (5) days after deposit in the U.S. mail and one (1) day after deposit with a reputable overnight courier service. 

The Company’s address is: 

Vivint Smart Home, Inc. 
 4931
North 300 West 
 Provo, Utah 84604 

Attention: Chief Legal Officer 

with a copy (not constituting notice) to: 

Simpson Thacher & Bartlett LLP 

425 Lexington Avenue 
 New York,
NY 10017 
 Attention: Igor Fert, Esq. 

Fax: (212) 455-2502 

If to any Stockholder Party, to such address as such Stockholder Party shall furnish to the Company in writing. 

4.3. Amendment; Waiver. (a) The terms and provisions of this Agreement may be modified or amended only with the written
approval of the Company and Stockholder Parties holding a majority of the shares then held by the Stockholder Parties in the aggregate as to which this Agreement has not been terminated pursuant to Section 4.1; provided, however, that in
the event the Company agrees to modify or amend the Confidentiality and Lockup Agreement of any other Stockholders Agreement Party in any manner that would benefit such Stockholders Agreement Party, then the Company shall also offer to modify or
amend this Agreement in a similar manner. Prior to the consummation of the Merger, this Agreement may not be amended without the prior written consent of Legacy Vivint. 

(b) Except as expressly set forth in this Agreement, neither the failure nor delay on the part of any party hereto to exercise any right,
remedy, power or privilege under this Agreement shall operate as a waiver thereof, nor shall any single or partial exercise of any right, remedy power or privilege preclude any other or further exercise of the same or of any other right, remedy,
power or privilege, nor shall any waiver of any right, remedy, power or privilege with respect to any occurrence be construed as a waiver of such right, remedy, power or privilege with respect to any other occurrence. 

  
 6 

 (c) No party shall be deemed to have waived any claim arising out of this Agreement, or any
right, remedy, power or privilege under this Agreement, unless the waiver of such claim, right, remedy, power or privilege is expressly set forth in a written instrument duly executed and delivered on behalf of such party; and any such waiver shall
not be applicable or have any effect except in the specific instance in which it is given. 
 (d) Any party hereto may unilaterally waive any
of its rights hereunder in a signed writing delivered to the Company. 
 4.4. Further Assurances. The parties hereto will sign
such further documents, cause such meetings to be held, resolutions passed, exercise their votes and do and perform and cause to be done such further acts and things necessary, proper or advisable in order to give full effect to this Agreement and
every provision hereof. 
 4.5. Assignment. This Agreement may not be assigned without the express prior written consent of the
other parties hereto, and any attempted assignment, without such consents, will be null and void. This Agreement will inure to the benefit of and be binding on the parties hereto and their respective successors and permitted assigns. 

4.6. Third Parties. Except as provided for in Article II, Article III and Article IV with respect to any Non-Recourse Party, this Agreement does not create any rights, claims or benefits inuring to any person that is not a party hereto nor create or establish any third party beneficiary hereto. 

4.7. Governing Law. THIS AGREEMENT AND ITS ENFORCEMENT AND ANY CONTROVERSY ARISING OUT OF OR RELATING TO THE MAKING OR
PERFORMANCE OF THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 
 4.8.
Jurisdiction; Waiver of Jury Trial. Each party hereto hereby (i) agrees that any action, directly or indirectly, arising out of, under or relating to this Agreement shall exclusively be brought in and shall exclusively be heard
and determined by either the Supreme Court of the State of New York sitting in Manhattan or the United States District Court for the Southern District of New York, and (ii) solely in connection with the action(s) contemplated by subsection
(i) hereof, (A) irrevocably and unconditionally consents and submits to the exclusive jurisdiction of the courts identified in subsection (i) hereof, (B) irrevocably and unconditionally waives any objection to the laying of venue in any of
the courts identified in clause (i) of this Section 4.8, (C) irrevocably and unconditionally waives and agrees not to plead or claim that any of the courts identified in such clause (i) is an inconvenient forum or does not have
personal jurisdiction over any party hereto, and (D) agrees that mailing of process or other papers in connection with any such action in the manner provided herein or in such other manner as may be permitted by applicable law shall be valid
and sufficient service thereof. EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY CLAIM OR ACTION DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER
OR IN CONNECTION WITH THIS AGREEMENT. 

  
 7 

 4.9. Specific Performance. Each party hereto acknowledges and agrees that in
the event of any breach of this Agreement by any of them, the other parties hereto would be irreparably harmed and could not be made whole by monetary damages. Each party accordingly agrees to waive the defense in any action for specific performance
that a remedy at law would be adequate and that the parties, in addition to any other remedy to which they may be entitled at law or in equity, shall be entitled to specific performance of this Agreement without the posting of a bond. 

4.10. Entire Agreement. This Agreement sets forth the entire understanding of the parties hereto with respect to the subject
matter hereof. There are no agreements, representations, warranties, covenants or understandings with respect to the subject matter hereof other than those expressly set forth herein. This Agreement supersedes all other prior agreements and
understandings between the parties with respect to such subject matter. 
 4.11. Severability. If any provision of this
Agreement, or the application of such provision to any Person or circumstance or in any jurisdiction, shall be held to be invalid or unenforceable to any extent, (i) the remainder of this Agreement shall not be affected thereby, and each other
provision hereof shall be valid and enforceable to the fullest extent permitted by Law, (ii) as to such Person or circumstance or in such jurisdiction such provision shall be reformed to be valid and enforceable to the fullest extent permitted
by Law and (iii) the application of such provision to other Persons or circumstances or in other jurisdictions shall not be affected thereby. 

4.12. Table of Contents, Headings and Captions. The table of contents, headings, subheadings and captions contained in this
Agreement are included for convenience of reference only, and in no way define, limit or describe the scope of this Agreement or the intent of any provision hereof. 

4.13. Counterparts. This Agreement and any amendment hereto may be signed in any number of separate counterparts, each of which
shall be deemed an original, but all of which taken together shall constitute one agreement (or amendment, as applicable). 
 4.14.
Effectiveness; Termination of Existing Stockholders and Securityholders Agreements. This Agreement shall be valid and enforceable as of the date of this Agreement and may not be revoked by any party hereto; provided that
the provisions herein (other than this Article IV) shall not be effective until the consummation of the Merger. In the event the Merger Agreement is terminated in accordance with its terms, this Agreement shall automatically terminate and be of no
further force or effect. 
 4.15. No Recourse. This Agreement may only be enforced against, and any claim or cause of action
that may be based upon, arise out of or relate to this Agreement, or the negotiation, execution or performance of this Agreement, the transactions contemplated hereby or the subject matter hereof may only be made against the parties hereto and no
past, present or future Affiliate, director, officer, employee, incorporator, member, manager, partner, 

  
 8 

 
shareholder, agent, attorney or representative of any party hereto or any past, present or future Affiliate, director, officer, employee, incorporator, member, manager, partner, stockholder,
agent, attorney or representative of any of the foregoing (each, a “Non-Recourse Party”) shall have any liability for any obligations or liabilities of the parties to this Agreement or
for any claim based on, in respect of, or by reason of, the transactions contemplated hereby. Without limiting the rights of any party against the other parties hereto, in no event shall any party or any of its Affiliates seek to enforce this
Agreement against, make any claims for breach of this Agreement against, or seek to recover monetary damages from, any Non-Recourse Party. 

[Remainder of Page Intentionally Left Blank] 

  
 9 

 IN WITNESS WHEREOF, the parties hereto have executed this Confidentiality and Lockup
Agreement on the day and year first above written. 
  

			
	MOSAIC ACQUISITION CORP.
		
	By:	 	 /s/ David M. Maura

	Name: David M. Maura
	Title: Chairman, President and Chief Executive Officer

 [Signature Page to Confidentiality and Lockup Agreement] 

 
			
	TODD PEDERSEN
	
	 /s/ Todd Pedersen

	
	THE PEDERSEN FAMILY TRUST
		
	By:	 	 /s/ Michael Cahill

	Name: Michael Cahill
	Title: Trustee

 [Signature Page to Confidentiality and Lockup Agreement] 

 Exhibit A 

Todd Pedersen 
 The Pedersen Family Trust 

 Exhibit B 

FORM OF JOINDER TO CONFIDENTIALITY AND LOCKUP AGREEMENT 

[                ],
20       
 Reference is made to the Confidentiality and Lockup Agreement, dated as of September 15, 2019, by
and between Mosaic Acquisition Corp., Todd Pedersen and the other Stockholder Parties (as defined therein) from time to time party thereto (as amended from time to time, the “Confidentiality and Lockup Agreement”). Capitalized terms
used but not otherwise defined herein shall have the meanings ascribed to such terms in the Confidentiality and Lockup Agreement. 
 Each of the Company and
each undersigned holder of shares of the Company (each, a “New Stockholder Party”) agrees that this Joinder to the Confidentiality and Lockup Agreement (this “Joinder”) is being executed and delivered for good and
valuable consideration. 
 Each undersigned New Stockholder Party hereby agrees to and does become party to the Confidentiality and Lockup Agreement as a
Stockholder Party. This Joinder shall serve as a counterpart signature page to the Confidentiality and Lockup Agreement and by executing below each undersigned New Stockholder Party is deemed to have executed the Confidentiality and Lockup Agreement
with the same force and effect as if originally named a party thereto. 
 This Joinder may be executed in multiple counterparts, including by means of
facsimile or electronic signature, each of which shall be deemed an original, but all of which together shall constitute the same instrument. 

[Remainder of Page Intentionally Left Blank.] 

 IN WITNESS WHEREOF, the undersigned have duly executed this joinder as of the date first set forth above.

  

			
	[NEW STOCKHOLDER PARTY]
		
	By:	 	              

		 	Name:
		 	Title
	
	[COMPANY]
		
	By:	 	  

		 	Name:
		 	Title:

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