Document:

EX-10.2

 Exhibit 10.2 

FINAL FORM 

VOTING AGREEMENT 

This Voting Agreement (this “Agreement”) is made as of November 30, 2017, by and among (i) Forum Merger
Corporation, a Delaware corporation (including any successor entity thereto, “Parent”), (ii) C1 Investment Corp., a Delaware corporation (the “Company”), and (iii) Clearlake Capital Partners III
(Master), L.P., a Delaware limited partnership (“Holder”), solely in Holder’s capacity as a Company Stockholder (and not in any other capacity). Any capitalized term used but not defined in this Agreement will have the
meaning ascribed to such term in the Merger Agreement (as defined below). 
 WHEREAS, on or about the date hereof, Parent, the
Company, FMC Merger Subsidiary Corp., a Delaware corporation and a wholly-owned subsidiary of Parent (“Merger Sub I”), FMC Merger Subsidiary Corp., a Delaware limited liability company and a wholly-owned subsidiary of Parent
(“Merger Sub II”, and together with Merger Sub I, the “Merger Subs”) and the other parties named therein, have entered into that certain Merger Agreement (as amended from time to time in accordance
with the terms thereof, the “Merger Agreement”), pursuant to which (i) Merger Sub I will merge with and into the Company, with the Company continuing as the surviving corporation (the “First
Merger”) and (ii) as part of the same overall transaction as the First Merger, the surviving corporation of the First Merger will merge with and into Merger Sub II (the “Second Merger” and together with the
First Merger, the “Mergers”), and as a result of which, among other matters, all of the issued and outstanding capital stock of the Company as of the Effective Time shall no longer be outstanding and shall automatically be
cancelled and shall cease to exist, in exchange for the right to receive the Total Consideration as set forth in the Merger Agreement, all upon the terms and subject to the conditions set forth in the Merger Agreement and in accordance with the
applicable provisions of the DGCL; 
 WHEREAS, the Board of Directors of the Company has (i) approved and declared advisable the
Merger Agreement, the Ancillary Documents (including this Agreement), the Mergers and the other transactions contemplated by any such documents (collectively, the “Transactions”), (ii) determined that the Transactions are
fair to and in the best interests of the Company and its shareholders (the “Company Stockholders”) and (iii) recommended the approval and the adoption by each of the Company Stockholders of the Merger Agreement, the
Ancillary Documents (including this Agreement), the Mergers and the other Transactions; and 
 WHEREAS, as a condition to the
willingness of Parent to enter into the Merger Agreement, and as an inducement and in consideration therefor, and in view of the valuable consideration to be received by Holder thereunder, and the expenses and efforts to be undertaken by Parent and
the Company to consummate the Transactions, Parent, the Company and Holder desire to enter into this Agreement in order for Holder to provide certain assurances to Parent regarding the manner in which Holder is bound hereunder to vote any shares of
capital stock of the Company which Holder beneficially owns, holds or otherwise has voting power (the “Shares”) during the period from and including the date hereof through and including the date on which this Agreement is
terminated in accordance with its terms (the “Voting Period”) with respect to the Merger Agreement, the Mergers, the Ancillary Documents and the Transactions. 

NOW, THEREFORE, in consideration of the premises set forth above, which are incorporated in this Agreement as if fully set forth below,
and intending to be legally bound hereby, the parties hereby agree as follows: 
 1. Covenant to Vote in Favor of Transactions.
Holder agrees, with respect to all of the Shares (unless this Agreement shall have been terminated in accordance with Section 4(a)): 

(a) during the Voting Period, at each meeting of the Company Stockholders or any class or series thereof, and in each written consent or
resolutions of any of the Company Stockholders in which Holder is entitled to vote or consent, Holder hereby unconditionally and irrevocably agrees to be present for such meeting and vote (in person or by proxy), or consent to any action by written
consent or resolution with respect to, as applicable, the Shares (i) in favor of, and adopt, the Mergers, the Merger Agreement, the Ancillary Documents, 

  
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any amendments to the Company’s Organizational Documents contemplated by the Merger Agreement, and all of the other Transactions (and any actions required in furtherance thereof), (ii) in
favor of the other matters set forth in the Merger Agreement, and (iii) to vote the Shares in opposition to: (A) any Acquisition Proposal and any and all other proposals (x) for the acquisition of the Company, (y) that could
reasonably be expected to significantly delay or significantly impair the ability of the Company to consummate the Mergers, the Merger Agreement or any of the Transactions, or (z) which are in competition with or materially inconsistent with
the Merger Agreement or the Ancillary Documents; (B) other than as contemplated by the Merger Agreement, any material change in (x) the present capitalization of the Company or any amendment of the Company’s Organizational Documents
or (y) the Company’s corporate structure or business; or (C) any other action or proposal involving the Company or any of its Subsidiaries that is intended, or would reasonably be expected, to prevent, impede, interfere with, delay,
postpone or adversely affect in any material respect the Transactions or would reasonably be expected to result in any of the conditions to the Company’s obligations under the Merger Agreement not being fulfilled; 

(b) (i) to execute and deliver to the Company a Letter of Transmittal (in substantially the form attached as an exhibit to the Merger
Agreement), (ii) to deliver Holder’s Company Certificate(s) (or a Lost Certificate Affidavit in lieu of the Company Certificate(s)) representing the Shares, duly endorsed for transfer, to the Company, and (iii) to execute and deliver the Lock-Up Agreement and the Registration Rights Agreement (in each case in substantially the form attached to the Merger Agreement); 

(c) not to deposit, and to cause their Affiliates not to deposit, except as provided in this Agreement, any Shares owned by Holder or
his/her/its Affiliates in a voting trust or subject any Shares to any arrangement or agreement with respect to the voting of such Shares, unless specifically requested to do so by Company and Parent in connection with the Merger Agreement, the
Ancillary Documents and any of the Transactions; 
 (d) except as contemplated by the Merger Agreement or the Ancillary Documents, make, or
in any manner participate in, directly or indirectly, a “solicitation” of “proxies” or consents (as such terms are used in the rules of the SEC) or powers of attorney or similar rights to vote, or seek to advise or influence any
Person with respect to the voting of, any shares of the Company capital stock in connection with any vote or other action with respect to the Transactions, other than to recommend that stockholders of the Company vote in favor of adoption of the
Merger Agreement and the Transactions and any other proposal the approval of which is a condition to the obligations of the parties under the Merger Agreement (and any actions required in furtherance thereof and otherwise as expressly provided by
Section 1 of this Agreement); and 
 (e) to refrain from exercising any dissenters’ rights or rights of
appraisal under applicable law at any time with respect to the First Merger, the Merger Agreement, the Ancillary Documents and any of the Transactions, including pursuant to the DGCL. 

2. Other Covenants. 

(a) No Transfers. Unless this Agreement shall have been terminated in accordance with Section 4(a) of this Agreement, Holder
agrees that during the Voting Period it shall not, and shall cause its Affiliates not to, without Company’s prior written consent, (A) offer for sale, sell (including short sales), transfer, tender, pledge, encumber, assign or otherwise
dispose of (including by gift) (collectively, a “Transfer”), or enter into any contract, option, derivative, hedging or other agreement or arrangement or understanding (including any profit-sharing arrangement) with respect
to, or consent to, a Transfer of, any or all of the Shares; (B) grant any proxies or powers of attorney with respect to any or all of the Shares; (C) permit to exist any material lien (other than those imposed by this Agreement, applicable
securities Laws or the Company’s Organizational Documents, as in effect on the date hereof) with respect to any or all of the Shares; or (D) take any action that would have the effect of materially preventing, impeding, interfering with or
adversely affecting Holder’s ability to perform its obligations under this Agreement. The Company hereby agrees that it shall not permit any Transfer of the Shares in violation of this Agreement. Holder agrees with, and covenants to, Company
that Holder shall not request that the Company register the Transfer (book-entry or otherwise) of any certificate or uncertificated interest representing any Shares during the term of this Agreement without the prior written consent of Company, and
the Company hereby agrees that it shall not effect any such Transfer. 

  
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 (b) Changes to Shares. In the event of a stock dividend or distribution, or any
change in the shares of capital stock of the Company by reason of any stock dividend or distribution, stock split, recapitalization, combination, conversion, exchange of shares or the like, the term “Shares” shall be deemed to refer to and
include the Shares as well as all such stock dividends and distributions and any securities into which or for which any or all of the Shares may be changed or exchanged or which are received in such transaction. Unless this Agreement shall have been
terminated in accordance with Section 4(a) of this Agreement, Holder agrees during the Voting Period to notify Parent promptly in writing of the number and type of any additional Shares acquired by Holder, if any, after the date hereof. 

(c) Registration Statement. Unless this Agreement shall have been terminated in accordance with Section 4(a) of this
Agreement, during the Voting Period, Holder agrees to provide to Parent and its Representatives any information regarding Holder or the Shares that is reasonably requested by Company or its Representatives for inclusion in the Registration
Statement. 
 (d) Publicity. Unless this Agreement shall have been terminated in accordance with Section 4(a) of this
Agreement, Holder shall not issue any press release or otherwise make any public statements with respect to the Transactions or the transactions contemplated herein without the prior written approval of the Company and Parent. Holder hereby
authorizes the Company and Parent to publish and disclose in any announcement or disclosure required by the SEC, Nasdaq or the Registration Statement (including all documents and schedules filed with the SEC in connection with the foregoing),
Holder’s identity and ownership of the Shares and the nature of Holder’s commitments and agreements under this Agreement, the Merger Agreement and any other Ancillary Documents; provided, that Parent shall provide Holder of written
notice at least three (3) days prior to any such publishing or disclosure. 
 3. Representations and Warranties of
Holder. Holder hereby represents and warrants to Company as follows: 
 (a) Binding Agreement. Holder
(i) is a limited partnership duly organized and validly existing under the laws of the jurisdiction of its organization and (ii) has all necessary power and authority to execute and deliver this Agreement, to perform its obligations
hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement, the performance of its obligations hereunder and the consummation of the transactions contemplated hereby by Holder has been duly
authorized by all necessary partnership action on the part of Holder, as applicable. This Agreement, assuming due authorization, execution and delivery hereof by the other parties hereto, constitutes a legal, valid and binding obligation of Holder,
enforceable against Holder in accordance with its terms (except as such enforceability may be limited by bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and other similar laws of general applicability relating to or affecting
creditor’s rights, and to general equitable principles). Holder understands and acknowledges that Parent is entering into the Merger Agreement in reliance upon the execution and delivery of this Agreement by Holder. 

(b) Ownership of Shares. As of the date hereof, Holder has record or beneficial ownership over the type and number of the Shares
set forth under Holder’s name on the signature page hereto, is the lawful owner of such Shares, has the sole power to vote or cause to be voted such Shares, and has good and valid title to such Shares, free and clear of any and all pledges,
mortgages, encumbrances, charges, proxies, voting agreements, liens, adverse claims, options, security interests and demands of any nature or kind whatsoever, in each case, in all material respects, other than those imposed by this Agreement,
applicable securities Laws or the Company’s Organizational Documents, as in effect on the date hereof. Except for the Shares and other securities of the Company set forth under Holder’s name on the signature page hereto, as of the date of
this Agreement, Holder is not a beneficial owner or record holder of any: (i) equity securities of the Company, (ii) securities of the Company having the right to vote on any matters on which the holders of equity securities of the Company
may vote or which are convertible into or exchangeable for, at any time, equity securities of the Company or (iii) options, warrants or other rights to acquire from the Company any equity securities or securities convertible into or
exchangeable for equity securities of the Company. 

  
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 (c) No Conflicts. No filing with, or notification to, any Governmental Authority,
and no consent, approval, authorization or permit of any other person is necessary for the execution of this Agreement by Holder, the performance of its obligations hereunder or the consummation by it of the transactions contemplated hereby. None of
the execution and delivery of this Agreement by Holder, the performance of its obligations hereunder or the consummation by it of the transactions contemplated hereby shall (i) conflict with or result in any breach of the certificate of
formation, limited partnership agreement or other comparable organizational documents of Holder, if applicable, (ii) result in, or give rise to, a violation or breach of or a default under any of the terms of any Contract to which Holder is a
party or by which Holder or any of the Shares may be bound, or (iii) violate any applicable Law or Order, except for any of the foregoing in clauses (i) through (iii) as would not reasonably be expected to impair Holder’s ability to
perform its obligations under this Agreement in any material respect. 
 (d) No Inconsistent Agreements. Holder hereby
covenants and agrees that, except for this Agreement, Holder (i) has not entered into, nor will enter into at any time while this Agreement remains in effect, any voting agreement or voting trust with respect to the Shares inconsistent with
Holder’s obligations pursuant to this Agreement, (ii) has not granted, nor will grant at any time while this Agreement remains in effect, a proxy, a consent or power of attorney with respect to the Shares and (iii) has not entered
into any agreement or knowingly taken any action (nor will enter into any agreement or knowingly take any action) that would make any representation or warranty of Holder contained herein untrue or incorrect in any material respect or have the
effect of preventing Holder from performing any of its material obligations under this Agreement. 
 4. Miscellaneous. 

(a) Termination. Notwithstanding anything to the contrary contained herein, this Agreement shall automatically terminate, and none of
Parent, the Company or Holder shall have any rights or obligations hereunder, upon the earliest to occur of (i) the mutual written consent of Parent, the Company and Holder, (ii) the Effective Time (following the performance of the
obligations of the parties hereunder required to be performed at or prior to the Effective Time), (iii) the date of termination of the Merger Agreement in accordance with its terms and (iv) the date of any material modification, waiver or
amendment of the Merger Agreement which is not approved in writing by Holder that affects materially and adversely the consideration payable to Holder pursuant to the Merger Agreement as in effect on the date hereof. The termination
of this Agreement shall not prevent any party hereunder from seeking any remedies (at law or in equity) against another party hereto or relieve such party from liability for such party’s breach of any terms of this Agreement. Notwithstanding
anything to the contrary herein, the provisions of this Section 4(a) shall survive the termination of this Agreement. 

(b) Binding Effect; Assignment. This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit of the
parties hereto and their respective permitted successors and assigns. This Agreement and all obligations of Holder are personal to Holder and may not be assigned, transferred or delegated by Holder at any time without the prior written consent of
Parent and the Company, and any purported assignment, transfer or delegation without such consent shall be null and void ab initio. Each of the Company and Parent may freely assign any or all of its rights under this Agreement, in whole or in part,
to any successor entity (whether by merger, consolidation, equity sale, asset sale or otherwise) without obtaining the consent or approval of Holder. 

(c) Third Parties. Nothing contained in this Agreement or in any instrument or document executed by any party in connection with the
transactions contemplated hereby shall create any rights in, or be deemed to have been executed for the benefit of, any person that is not a party hereto or thereto or a successor or permitted assign of such a party. 

(d) Governing Law; Jurisdiction. This Agreement and any dispute or controversy arising out of or relating to this Agreement shall be
governed by and construed in accordance with the laws of the State of New York, without regard to the conflict of law principles thereof. All Actions arising out of or relating to this Agreement shall be heard and determined exclusively in any state
or federal court located in New York, New York (or in any appellate courts thereof) (the “Specified Courts”). Each party hereto hereby (i) submits to the 

  
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exclusive jurisdiction of any Specified Court for the purpose of any Action arising out of or relating to this Agreement brought by any party hereto and (ii) irrevocably waives, and agrees
not to assert by way of motion, defense or otherwise, in any such Action, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the Action
is brought in an inconvenient forum, that the venue of the Action is improper, or that this Agreement or the transactions contemplated hereby may not be enforced in or by any Specified Court. Each party agrees that a final judgment in any Action
shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by Law. Each party irrevocably consents to the service of the summons and complaint and any other process in any other action or
proceeding relating to the transactions contemplated by this Agreement, on behalf of itself, or its property, by personal delivery of copies of such process to such party at the applicable address set forth or referred to in Section 4(g).
Nothing in this Section 4(d) shall affect the right of any party to serve legal process in any other manner permitted by applicable law. 

(e) WAIVER OF JURY TRIAL. EACH OF THE PARTIES HERETO HEREBY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY RIGHT IT MAY
HAVE TO A TRIAL BY JURY WITH RESPECT TO ANY ACTION DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. EACH PARTY HERETO (i) CERTIFIES THAT NO REPRESENTATIVE OF ANY OTHER
PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF ANY ACTION, SEEK TO ENFORCE THAT FOREGOING WAIVER AND (ii) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS
AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 4(e). 
 (f) Interpretation. The titles
and subtitles used in this Agreement are for convenience only and are not to be considered in construing or interpreting this Agreement. In this Agreement, unless the context otherwise requires: (i) any pronoun used in this Agreement shall
include the corresponding masculine, feminine or neuter forms, and the singular form of nouns, pronouns and verbs shall include the plural and vice versa; (ii) “including” (and with correlative meaning “include”) means including
without limiting the generality of any description preceding or succeeding such term and shall be deemed in each case to be followed by the words “without limitation”; (iii) the words “herein,” “hereto,” and
“hereby” and other words of similar import in this Agreement shall be deemed in each case to refer to this Agreement as a whole and not to any particular section or other subdivision of this Agreement; and (iv) the term “or”
means “and/or”. The parties have participated jointly in the negotiation and drafting of this Agreement. Consequently, in the event an ambiguity or question of intent or interpretation arises, this Agreement shall be construed as if
drafted jointly by the parties hereto, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of the authorship of any provision of this Agreement. 

(g) Capacity as a Company Stockholder: Holder signs this Agreement solely in Holder’s capacity as a stockholder of the Company, and
not in Holder’s capacity as a director, officer or employee of any Target Company or in Holder’s capacity as a trustee or fiduciary of any employee benefit plan or trust. Notwithstanding anything herein to the contrary, nothing herein
shall in any way restrict a director or officer of the Company in the exercise of his or her fiduciary duties as a director or officer of the Company or in his or her capacity as a trustee or fiduciary of any employee benefit plan or trust or
prevent or be construed to create any obligation on the part of any director or officer of the Company or any trustee or fiduciary of any employee benefit plan or trust from taking any action in his or her capacity as such director, officer, trustee
or fiduciary. 

  
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 (h) Notices. All notices, consents, waivers and other communications hereunder shall be in
writing and shall be deemed to have been duly given when delivered (i) in person, (ii) by facsimile or other electronic means, with affirmative confirmation of receipt, (iii) one Business Day after being sent, if sent by reputable,
nationally recognized overnight courier service or (iv) three (3) Business Days after being mailed, if sent by registered or certified mail, pre-paid and return receipt requested, in each case to the
applicable party at the following addresses (or at such other address for a party as shall be specified by like notice): 
  

 
  

			
	 If to Parent, to:
  

Forum Merger Corporation
 c/o Forum Investors I, LLC

135 East 57th Street, 8th Floor
 New York, New York

Attn: David Boris
 Telephone No.: (212) 739-7860
 Email: david@forummerger.com
	  	 With a copy to (which shall not constitute notice):
  

Ellenoff Grossman & Schole LLP
 1345 Avenue of the Americas,
11th Floor
 New York, New York 10105
 Attn: Douglas Ellenoff,
Esq.
         Tamar Donikyan, Esq.
 Facsimile No.: (212) 370-7889

Telephone No.: (212) 370-1300

Email: ellenoff@egsllp.com
            tdonikyan@egsllp.com

 

	 
	 If to the Company, to:
  

C1 Investment Corp.
 3344 Highway 149
	  	 With a copy to (which shall not constitute notice):
  

Cooley LLP
 3175 Hanover Street

	 
	 Eagan, MN 55121
 Attn: John McKenna, Chief
Executive Officer
	  	 Palo Alto, CA 94304-1130
 Attn: Mehdi
Khodadad, Esq.
 Attn: John T. McKenna, Esq.
 Facsimile No.:
(650) 849-7400
 Telephone No.: (650) 843-5000

Email: mkhodadad@cooley.com
           jmckenna@cooley.com

and
  

Hogan Lovells US LLP
 4085 Campbell Avenue

Suite 100
 Menlo Park, CA 94025

Attn: Mark L. Heimlich
Attn: Alexander B. Johnson
Attn: John H. Booher

Facsimile No.: (650) 463-4199

Telephone No.: (650) 463-4000
  

	 
	 If to Holder, to: the address set forth under Holder’s name on the signature page hereto, with a copy (which will not
constitute notice) to, if not the party sending the notice, each of the Company and Parent (and each of their copies for notices hereunder).
  

	 

 (i) Amendments and Waivers. Any term of this Agreement may be amended and the observance of any term of
this Agreement may be waived (either generally or in a particular instance, and either retroactively or prospectively) only with the written consent of Parent, the Company and Holder. No failure or delay by a party in exercising any right hereunder
shall operate as a waiver thereof. No waivers of or exceptions to any term, condition, or provision of this Agreement, in any one or more instances, shall be deemed to be or construed as a further or continuing waiver of any such term, condition, or
provision. 

  
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 (j) Severability. In case any provision in this Agreement shall be held invalid, illegal
or unenforceable in a jurisdiction, such provision shall be modified or deleted, as to the jurisdiction involved, only to the extent necessary to render the same valid, legal and enforceable, and the validity, legality and enforceability of the
remaining provisions hereof shall not in any way be affected or impaired thereby nor shall the validity, legality or enforceability of such provision be affected thereby in any other jurisdiction. Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the parties will substitute for any invalid, illegal or unenforceable provision a suitable and equitable provision that carries out, so far as may be valid, legal and enforceable, the
intent and purpose of such invalid, illegal or unenforceable provision. 
 (k) Specific Performance. Holder acknowledges that its
obligations under this Agreement are unique, recognizes and affirms that in the event of a breach of this Agreement by Holder, money damages will be inadequate and Parent will have not adequate remedy at law, and agree that irreparable damage would
occur in the event that any of the provisions of this Agreement were not performed by Holder in accordance with their specific terms or were otherwise breached. Accordingly, Parent shall be entitled to an injunction or restraining order to prevent
breaches of this Agreement by Holder and to enforce specifically the terms and provisions hereof, without the requirement to post any bond or other security or to prove that money damages would be inadequate, this being in addition to any other
right or remedy to which such party may be entitled under this Agreement, at law or in equity. 
 (l) Expenses. Each party shall be
responsible for its fees and expenses (including the fees and expenses of investment bankers, accountants and counsel) in connection with the entering into of this Agreement, the performance of its obligations hereunder and the consummation of the
transactions contemplated hereby. 
 (m) No Partnership, Agency or Joint Venture. This Agreement is intended to create a contractual
relationship among Holder, the Company and Parent, and is not intended to create, and does not create, any agency, partnership, joint venture or any like relationship among the parties hereto or among any other Company shareholders entering into
voting agreements with the Company or Parent. Holder is not affiliated with any other holder of securities of the Company entering into a voting agreement with the Company or Parent in connection with the Merger Agreement and has acted independently
regarding its decision to enter into this Agreement. Nothing contained in this Agreement shall be deemed to vest in Parent any direct or indirect ownership or incidence of ownership of or with respect to any Shares. 

(n) Further Assurances. From time to time, at another party’s request and without further consideration, each party shall execute
and deliver such additional documents and take all such further action as may be reasonably necessary or desirable to consummate the transactions contemplated by this Agreement. 

(o) Entire Agreement. This Agreement (together with the Merger Agreement to the extent referred to herein) constitutes the full and
entire understanding and agreement among the parties with respect to the subject matter hereof, and any other written or oral agreement relating to the subject matter hereof existing between the parties is expressly canceled; provided,
that, for the avoidance of doubt, the foregoing shall not affect the rights and obligations of the parties under the Merger Agreement or any Ancillary Document. Notwithstanding the foregoing, nothing in this Agreement shall limit any of the rights
or remedies of Parent or any of the obligations of Holder under any other agreement between Holder and Parent or any certificate or instrument executed by Holder in favor of Parent, and nothing in any other agreement, certificate or instrument shall
limit any of the rights or remedies of Parent or any of the obligations of Holder under this Agreement. 
 (p) Counterparts;
Facsimile. This Agreement may also be executed and delivered by facsimile or electronic signature or by email in portable document format in two or more counterparts, each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. 
 [Remainder of Page Intentionally Left Blank; Signature Page Follows] 

  
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 IN WITNESS WHEREOF, the parties have executed this Voting Agreement as of the date first
written above. 
  

			
	 Parent:

 
 FORUM MERGER CORPORATION

		
	 By:
	 	 /s/ David Boris

	 Name:
	 	David Boris
	 Title:
	 	Co-Chief Executive Officer

  
  

 
  

{Signature Page to Voting Agreement} 

  
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 IN WITNESS WHEREOF, the parties have executed this Voting Agreement as of the date first
written above. 
  

			
	 The Company:
  

C1 INVESTMENT CORP.

		
	By:	 	 /s/ John A. McKenna, Jr.

	Name:	 	John A. McKenna, Jr.
	Title:	 	Chief Executive Officer

  
  

 
 {Signature Page to Voting Agreement} 

  
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 IN WITNESS WHEREOF, the parties have executed this Voting Agreement as of the date first
written above. 
  

			
	 Holder:
  

CLEARLAKE CAPITAL PARTNERS III (MASTER), L.P.

		
	By:	 	Clearlake Capital Partners III, GP, L.P.
	Its:	 	General Partner
	By:	 	Clearlake Capital Partners, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Behdad Eghbali

	Name:	 	Behdad Eghbali
	Title:	 	Co-President

 Number and Type of Shares: 

85,675,000 shares of Company Class A Common Stock 

                 shares of Company Class B Common Stock 

Address for Notice: 
 Address: 233 Wilshire Blvd., Suite
800 
 Santa Monica, CA 90401 
  

 
 {Signature Page to Voting Agreement} 

  
 10EX-10.3

 Exhibit 10.3 

FINAL FORM 
 Forum
Investors I, LLC 
 135 East 57th Street, 8th Floor, 

New York, New York 

November 30, 2017 
  

			
	Forum Merger Corporation
c/o Forum Investors I, LLC
135 East 57th Street, 8th Floor
New York, New York
Attn: Chief Executive Officer	  	C1 Investment Corp.
3344 Highway 149
Eagan, MN 55121
Attn: John McKenna, Chief Executive Officer
		
	 Clearlake Capital Management III, L.P.
233 Wilshire Blvd., Suite 800
Santa Monica, CA 90401
Attn: Behdad Eghbali, Partner
	  	

 Re: Sponsor Earnout Letter and Amendment to Escrow Agreement 

Ladies and Gentlemen: 
 Reference
is made to that certain: (i) Agreement and Plan of Merger, dated as of the date hereof (as it may be amended, the “Merger Agreement”) by and among Forum Merger Corporation, a Delaware corporation (the
“Parent”), FMC Merger Subsidiary Corp., a Delaware corporation and a wholly-owned subsidiary of Parent, FMC Merger Subsidiary LLC, a Delaware limited liability company, and a wholly-owned subsidiary of the Parent, Clearlake
Capital Management III, L.P., a Delaware limited partnership, in the capacity thereunder as the Seller Representative (the “Seller Representative”), and C1 Investment Corp., a Delaware corporation (the
“Company”); and (ii) Stock Escrow Agreement, dated as of April 6, 2017 (the “Escrow Agreement”), by and among Parent, Forum Investors I, LLC, a Delaware limited liability company (the
“Sponsor”), and Continental Stock Transfer & Trust Company, a New York corporation (the “Escrow Agent”). Unless otherwise defined herein, capitalized terms used herein shall have the meanings
ascribed thereto in the Merger Agreement. 
 In order to induce the Company to enter into the Merger Agreement, the Sponsor has agreed to
enter into this letter agreement (this “Agreement”) relating to the 4,312,500 Parent Founder Shares initially purchased by Sponsor in a private placement prior to the IPO, which shares are currently held by Sponsor. 

For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Sponsor and each of the undersigned
parties hereby agrees as follows: 
  

	1.	The Sponsor hereby agrees, upon and subject to the Closing, to forfeit 1,078,125 of the Parent Founder Shares (the “Forfeited Shares”). In order to effectuate such forfeiture, upon the Closing,
the Sponsor shall deliver the Forfeited Shares to Parent in certificated or book entry form (at the election of the Sponsor) for cancellation by Parent. 

  

	2.	 The Sponsor hereby agrees that, upon and subject to the Closing, an additional 2,156,250 of the Parent Founder
Shares (the “Sponsor Earnout Shares”) shall be subject to potential forfeiture in the event that Earnout Payments are not achieved by the Parent and its Subsidiaries, including the Surviving Corporation and Surviving Entity
pursuant to Article II of the Merger Agreement, with such Sponsor Earnout Shares vesting pursuant to the terms of this Agreement. One-third (1/3rd) of the Sponsor Earnout Shares shall become fully vested and
no longer subject to forfeiture upon each date of final determination pursuant to Section 2.2 of the Merger Agreement that (i) the 2018 Target has been achieved, (ii) the 2019 Target has been achieved, and (iii) the 2020 Target
has been achieved, and, in each case, that the applicable Earnout 

  
 1 

	 	
Payment has become payable as a result thereof (whether in the form of a Regular Earnout Payment, Catchup Earnout Payment or Accelerated Earnout Payment). In the event of a Change of Control, all
Sponsor Earnout Shares shall immediately vest and no longer be subject to forfeiture upon such Change of Control. Any Sponsor Earnout Shares that have not vested pursuant to this Section 2 on or prior to the date that (i) all earned
Earnout Payments have been made and (ii) it is finally determined that the Company Securityholders are not entitled to or eligible to receive any further Earnout Payments under the Merger Agreement, will be forfeited by the Sponsor after such
date, and the Sponsor will deliver any such forfeited Sponsor Earnout Shares to the Parent in certificated or book entry form (at the election of the Sponsor) for cancellation by Parent. 

 

	3.	The Sponsor hereby agrees that it shall not sell, transfer, or otherwise dispose of, or hypothecate or otherwise grant any interest in or to, any of the Sponsor Earnout Shares, unless and until such shares have become
vested in accordance with Section 2 above and are no longer subject to the Escrow Period (as used herein, as defined in the Escrow Agreement) in accordance with the Escrow Agreement as amended by Section 6 below. The share
certificates representing the Sponsor Earnout Shares shall contain a legend relating to transfer restrictions imposed by this Agreement and the risk of forfeiture associated with the Sponsor Earnout Shares. Such legend shall be removed upon the
request of Sponsor (with written notice to the Parent) following any such Sponsor Earnout Shares becoming vested and no longer subject to forfeiture. 

  

	4.	Until and unless the Sponsor Earnout Shares are forfeited, the Sponsor shall have full ownership rights to the Sponsor Earnout Shares, including the right to vote such shares. Notwithstanding the foregoing, dividends
shall not accrue on the unvested Sponsor Earnout Shares, nor shall Sponsor have the right to receive dividends and distributions on the unvested Sponsor Earnout Shares, in each case, until and unless and to the extent that any such Sponsor Earnout
Shares shall have become vested in accordance with Section 2. 

  

	5.	The Sponsor hereby agrees, on behalf of itself and its members and Affiliates, that effective upon and conditioned upon the Closing, it hereby waives (i) any rights that it has under Article Fourth, Section
B(b)(ii) of the Parent’s amended and restated certificate of incorporation to the adjustment to the conversion ratio of the Parent Founder Shares in connection with the PIPE Investment or the Closing and (ii) any other preemptive or
participation rights that the Sponsor and/or its members or Affiliates may have with respect to the PIPE Investment, including any rights under the Amended and Restated Limited Liability Company Agreement of the Sponsor. 

 

	6.	The parties hereby agree that, effective upon and conditioned upon the Closing, and subject to receipt of (i) the approval of Parent’s stockholders at the Special Meeting with respect to such amendment and
(ii) the acknowledgement, approval and acceptance of such amendment by both the Escrow Agent and EBC, the Escrow Agreement is hereby amended so that with respect to the Escrow Shares (as defined in the Escrow Agreement), notwithstanding the
provisions of the Escrow Agreement, including Section 3.2 thereof: 

  

	 	(a)	upon the Closing, the Forfeited Shares shall immediately be released from escrow and disbursed by the Escrow Agent to the Parent to be cancelled by the Parent, and the Escrow Period (as used herein, as defined in the
Escrow Agreement) with respect to the Forfeited Shares shall end at the Closing; 

  

	 	(b)	upon the Closing, any Parent Founder Shares other than the Forfeited Shares and the Sponsor Earnout Shares shall immediately be released from escrow and disbursed by the Escrow Agent to the Sponsor, and the Escrow
Period with respect to such Parent Founder Shares shall end at the Closing; 

  

	 	(c)	 with respect to the Sponsor Earnout Shares, the Escrow Period shall instead be the period from the Closing until
the earlier of (i) the one hundred and eighty (180) day anniversary of the date of the Closing and (ii) the date after the Closing on which Parent consummates a liquidation, merger, share exchange or other similar transaction with an
unaffiliated third party that results in all of Parent’s shareholders having the right to exchange their equity holdings in Parent for cash, securities or other property. Notwithstanding the foregoing, if the VWAP of Parent Common Shares for
fifteen 

  
 2 

	 	
(15) consecutive Trading Days is at least $12.50 per share (subject to equitable adjustment by Parent in good faith for stock splits, stock dividends, reorganizations and similar
transactions) for each such Trading Day (such condition, the “Stock Price Condition”), then the Escrow Period shall be deemed to have ended upon the end of such fifteenth
(15th) consecutive Trading Day with respect to twenty-five percent (25%) of the Sponsor Earnout Shares (with such twenty-five percent (25%) Sponsor Earnout Shares only including any Sponsor
Earnout Shares that are vested and no longer subject to forfeiture at such time or any Sponsor Earnout Shares that vest at any time thereafter). As promptly as possible after the occurrence of any such event, the Parent will notify and certify to
the Escrow Agent in writing that the Stock Price Condition has been met or that a transaction described in clause (ii) of this clause (c) have been consummated, and the Escrow Agent will thereupon release the applicable Sponsor Earnout
Shares to the Sponsor. For the avoidance of doubt, any Sponsor Earnout Shares that are released from the escrow with the Escrow Agent will still be subject to the restrictions set forth in Section 3 above until they have become vested in
accordance with Section 2 above. 

  

	7.	Parent hereby agrees that all Parent Securities owned by the Sponsor or its members or Affiliates, including the Sponsor Earnout Shares (and with respect to any Parent Private Warrants, the Parent Common Shares issuable
upon exercise thereof), will be included in the resale registration statement to be filed by the Parent pursuant to Section 6.20 of the Merger Agreement and that the Sponsor will have the right to enforce the provisions of Section 6.20 of
the Merger Agreement with respect to any such Parent Securities. Although such registration shall not be a Demand Registration under the Registration Rights Agreement, dated as of April 6, 2017, by and between the Parent and the Sponsor (the
“Existing Registration Rights Agreement”) or the Registration Rights Agreement (as defined in the Merger Agreement), the Sponsor (and its members and Affiliates) and Parent will have such rights and obligations with respect
to such registration as if the Sponsor (directly or behalf of its members or Affiliates) had exercised a Demand Registration under Section 2.1 of the Existing Registration Rights Agreement as in effect on the date hereof with respect to the
securities included in such registration. 

  

	8.	Except as expressly provided in this Agreement, all of the terms and provisions in the Escrow Agreement are and shall remain unchanged and in full force and effect, on the terms and subject to the conditions set forth
therein. This Agreement does not constitute, directly or by implication, an amendment or waiver of any provision of the Escrow Agreement, or any other right, remedy, power or privilege of any party thereto, except as expressly set forth herein. If
any provision of the Escrow Agreement is different from or inconsistent with any provision of this Agreement, the provision of this Agreement shall control, and the provision of the Escrow Agreement shall, to the extent of such difference or
inconsistency, be disregarded. 

  

	9.	This Agreement, together with the Merger Agreement to the extent referenced herein, and the Escrow Agreement, as amended hereby, constitutes the entire agreement and understanding of the parties hereto in respect of the
subject matter hereof and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or oral, relating to the subject matter hereof. This Agreement may not be changed, amended, modified or waived as
to any particular provision, except by a written instrument executed by all parties hereto. 

  

	10.	No party hereto may assign either this Agreement or any of its rights, interests, or obligations hereunder without the prior written consent of the other parties hereto, and any purported assignment in violation of the
foregoing shall be null and void ab initio. This Agreement shall be binding on the parties hereto and their respective successors and assigns. 

  

	11.	This Agreement shall be construed and interpreted in a manner consistent with the provisions of the Merger Agreement. The provisions set forth in Sections 11.4 through 11.8, 11.12 and 11.13 of the Merger Agreement, as
in effect as of the date hereof, are hereby incorporated by reference into, and shall be deemed to apply to, this Agreement as if all references to the “Agreement” in such sections were instead references to this Agreement.

  
 3 

	12.	Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing and shall be sent in the same manner as provided in the Merger Agreement, with notices
to the Parent, the Company and the Seller Representative being sent to the addresses set forth therein, and with notices to the Sponsor being sent to the address set forth in the Escrow Agreement, in each case with all copies as required thereunder.

  

	13.	This Agreement shall terminate at such time, if any, as the Merger Agreement is terminated in accordance with its terms, and upon such termination this Agreement shall be null and void and of no effect whatsoever, and
the parties hereto shall have no obligations under this Agreement. 

 {Remainder of Page Intentionally Left Blank;
Signature page follows} 

  
 4 

 Please indicate your agreement to the foregoing by signing in the space provided below.

 

  

			
	FORUM INVESTORS I, LLC

			
		
	By:	 	 /s/ David Boris

			
	Name:	 	David Boris
	Title:	 	Member

  

 

 Accepted and agreed, effective as of the date first set forth above: 

 

			
	FORUM MERGER CORPORATION
		
	By:	 	 /s/ David Boris

	Name:	 	David Boris
	Title:	 	Co-Chief Executive Officer

  

			
	C1 INVESTMENT CORP.
		
	By:	 	 /s/ Behdad Eghbali

	Name:	 	Behdad Eghbali
	Title:	 	Authorized Signatory
	
	CLEARLAKE CAPITAL MANAGEMENT III, L.P ., solely in its capacity under the Merger Agreement as the Seller Representative
		
	By:	 	 /s/ Behdad Eghbali

	Name:	 	Behdad Eghbali
	Title:	 	Managing Partner
		 	
		 	
		 	
		 	

 

 

  
 [Signature Page to
Sponsor Earnout Letter and Amendment to Escrow Agreement] 

  
 5

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