EX-10.4





 Exhibit 10.4 

FORM OF SUBSCRIPTION AGREEMENT 

This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on December 10, 2020, by and between
GigCapital3, Inc., a Delaware corporation (the “Company”), and [•] (“Subscriber”). 
 WHEREAS,
concurrently with the execution of this Subscription Agreement, the Company is entering into that certain Business Combination Agreement, dated as of the date of this Subscription Agreement (the “Business Combination Agreement”),
among the Company, Lightning Systems, Inc., a Delaware corporation (“Lightning”), and Project Power Merger Sub, Inc., a Delaware corporation, providing for the combination of the Company and Lightning (the “Transaction
Agreement” and the transactions contemplated by the Transaction Agreement, the “Transaction”); 
 WHEREAS, in
connection with the Transaction, Subscriber desires to subscribe for and purchase from the Company, immediately prior to, and contingent on, the consummation of the Transaction, (x) that principal amount of the Company’s 7.50% convertible
senior notes due 2024 (the “Notes”), set forth on the signature page hereto (the “Subscribed Notes”) and (y) that number of warrants (the “Warrants”) to purchase shares of the Company’s
common stock, par value $0.0001 per share (the “Common Stock”) set forth on the signature page hereto (the “Subscribed Warrants” and, together with the Subscribed Notes, the “Subscribed Securities”)
for an aggregate purchase price equal to 100.0% of the principal amount of the Subscribed Notes (the “Purchase Price”), and the Company desires to issue and sell to Subscriber the Subscribed Securities in consideration of the
payment of the Purchase Price by or on behalf of Subscriber to the Company; 
 WHEREAS, concurrently with the execution of this Subscription
Agreement, or prior to the closing date of the Transactions (the “Closing Date”), the Company will enter into subscription agreements (the “Other Subscription Agreements” and together with the Subscription
Agreement, the “Subscription Agreements”) with certain other institutional accredited investors (the “Other Subscribers” and together with the Subscriber, the “Subscribers”), which are on
substantially the same terms as the terms of this Subscription Agreement, pursuant to which such investors shall agree to purchase on the Closing Date, inclusive of the Subscribed Securities, an aggregate amount of up to $100,000,000 in aggregate
principal amount of the Notes (the “Other Subscribed Securities” and together with the Subscribed Securities, the “Collective Subscribed Securities”); 

WHEREAS, in connection with the issuance of the Notes on the Closing Date, the Company and Wilmington Trust, National Association, as trustee
(the “Trustee”) will enter into an indenture in respect of the Notes in substantially the form attached hereto as Exhibit A (the “Indenture”); and 

WHEREAS, in connection with the issuance of the Subscribed Warrants on the Closing Date, the Company and the Subscriber will enter into an
amended and restated warrant agreement in respect of the Subscribed Warrants in substantially the form attached hereto as Exhibit B (the “Warrant Agreement”). 

NOW, THEREFORE, in consideration of the foregoing and the mutual representations, warranties and covenants, and subject to the conditions,
herein contained, and intending to be legally bound hereby, the parties hereto hereby agree as follows: 
 1. Subscription.
Subject to the terms and conditions hereof, at the Closing (as defined below), Subscriber hereby agrees to subscribe for and purchase, and the Company hereby agrees to issue and sell to Subscriber, upon the payment of the Purchase Price, the
Subscribed Securities (such subscription and issuance, the “Subscription”). The Company hereby expressly covenants and agrees that the Purchase Price shall be used exclusively for the Transaction. 

 












 2. Closing. 

a. The consummation of the Subscription contemplated hereby (the “Closing”) shall occur on the Closing Date
immediately prior to or concurrently with the consummation of the Transaction. 
 b. At least five (5) Business Days
before the anticipated Closing Date, the Company shall deliver written notice to Subscriber (the “Closing Notice”) specifying (i) the anticipated Closing Date and (ii) the wire instructions for delivery of the Purchase
Price to the Company. No later than two (2) Business Days after receiving the Closing Notice, Subscriber shall deliver to the Company such information as is reasonably requested in the Closing Notice in order for the Company to issue the
Subscribed Securities to Subscriber. Subscriber shall deliver to the Company, on the Closing Date, the Purchase Price in cash via wire transfer to the account specified in the Closing Notice against delivery (with such delivery to occur promptly
following receipt of the Purchase Price) by the Company to Subscriber of (i) the Subscribed Notes in book entry form pursuant to the DWAC procedures of the Depository Trust Company (“DTC”), which will act as securities
depository for the Notes, free and clear of any liens or other restrictions (other than those arising under the Indenture, this Subscription Agreement or state or federal securities laws), in the name of a custodian designated by Subscriber (which
custodian shall have properly posted such DWAC for release by the Trustee through the facilities of DTC), and (ii) the Warrant Agreement executed by the Company, evidencing the issuance to Subscriber of the Subscribed Warrants on and as of the
Closing Date, subject to the Subscriber’s execution of such Warrant Agreement. In the event that the consummation of the Transaction does not occur within one (1) Business Day after the anticipated Closing Date specified in the Closing
Notice, the Company shall promptly (but in no event later than two (2) Business Days after the anticipated Closing Date specified in the Closing Notice) return the funds so delivered by Subscriber to the Company by wire transfer in immediately
available funds to the account specified by Subscriber. For the purposes of this Subscription Agreement, “Business Day” means any day other than a Saturday, Sunday or a day on which the Federal Reserve Bank of New York is closed.

 c. The Closing shall be subject to the satisfaction or valid waiver (to the extent a valid waiver is capable of being
issued) by the Company, on the one hand, or the Subscriber, on the other, of the conditions that, on the Closing Date: 
 (i)
no suspension of the qualification of any of the Subscribed Securities or the Common Stock for offering or sale or trading in any jurisdiction, or initiation or threatening of any proceedings for any of such purposes, shall have occurred; 

(ii) all conditions precedent to the closing of the Transaction set forth in the Transaction Agreement, including the approval
of the Company’s stockholders, shall have been satisfied or waived, and the closing of the Transaction shall be scheduled to occur concurrently with or immediately following the Closing; and 

(iii) no governmental authority shall have enacted, issued, promulgated, enforced or entered any judgment, order, law, rule or
regulation (whether temporary, preliminary or permanent) which is then in effect and has the effect of making consummation of the transactions contemplated hereby illegal or 

  
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otherwise restraining, prohibiting or enjoining consummation of the transactions contemplated hereby (except in the case of a governmental authority located outside the United States where such
judgment, order, law, rule or regulation would not be reasonably expected to have a Company Material Adverse Effect (as defined below)); and no such governmental authority shall have instituted or threatened in writing a proceeding seeking to impose
any such restraint or prohibition (except in the case of a governmental authority located outside the United States where such restraint or prohibition would not be reasonably expected to have a Company Material Adverse Effect). 

d. The obligation of the Company to consummate the Closing shall be subject to the satisfaction or valid waiver by the Company
of the additional conditions that, on the Closing Date: 
 (i) all representations and warranties of Subscriber contained in
this Subscription Agreement are true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Subscriber Material Adverse Effect (as defined below), which representations and warranties
shall be true in all respects) at and as of the Closing Date, and consummation of the Closing shall constitute a reaffirmation by Subscriber of each of the representations and warranties of Subscriber contained in this Subscription Agreement as of
the Closing; and 
 (ii) Subscriber shall have performed, satisfied and complied in all material respects with all covenants,
agreements and conditions required by this Subscription Agreement to be performed, satisfied or complied with by it at or prior to the Closing, except where the failure of such performance or compliance would not or would not reasonably be expected
to prevent, materially delay, or materially impair the ability of the Company to consummate the Closing. 
 e. The obligation
of Subscriber to consummate the Closing shall be subject to the satisfaction or valid waiver by Subscriber of the additional conditions that, on the Closing Date: 

(i) all representations and warranties of the Company contained in this Subscription Agreement are 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 below), which representations and warranties shall be true in all respects) at and as of the Closing
Date, and consummation of the Closing shall constitute a reaffirmation by the Company of each of the representations and warranties of the Company contained in this Subscription Agreement as of the Closing; 

(ii) the Company shall have performed, satisfied and complied in all material respects with all covenants, agreements and
conditions required by this Subscription Agreement to be performed, satisfied or complied with by it at or prior to the Closing; 

(iii) there shall have been no amendment, waiver or modification to the Transaction Agreement that materially and adversely
affects the Company; 

  
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 (iv) the Company shall not have entered into any Other Subscription
Agreement with a lower purchase price per $1,000 principal amount of the Notes or other terms (economic or otherwise) substantially more favorable to such other subscriber or investor than as set forth in this Subscription Agreement; 

(v) there has not occurred any material adverse change, or any development involving a prospective material adverse change, in
the condition (financial or otherwise) or in the results of operations, or business of the Company or Lightning; 
 (vi) the
Company shall have cash and cash equivalents in the Trust Account from the transactions contemplated in this Subscription Agreement, the Other Subscription Agreements and the separate subscription agreement for the sale of common stock of an
aggregate amount not less than $150,000,000 pursuant to the terms and conditions of the Business Combination Agreement, of which at least $50,000,000 is from the Trust Account and no more than $75,000,000 is from the transactions contemplated
in this Subscription Agreement and the Other Subscription Agreements; and 
 (vii) all conditions precedent to the closing of
the $25,000,000 investment by British Petroleum Technology Ventures, Inc. (“BP”) set forth in that certain Subscription Agreement, dated as of December 10, 2020, by and between BP and the Company shall have been satisfied or
waived, and the Closing shall occur concurrently with the investment by BP. 
 f. Prior to or at the Closing, Subscriber
shall deliver to the Company a duly completed and executed Internal Revenue Service Form W-9 or appropriate Form W-8. 

3. Company Representations and Warranties. For purposes of this Section 3, the term “Company”
shall refer to the Company as of the date hereof and, for purposes of only the representations contained in subsections (f), (i), (k) and (n) of this Section 3 and to the extent such representations and warranties are
made as of the Closing Date, the combined company after giving effect to the Transaction as of the Closing Date. The Company represents and warrants to Subscriber that: 

a. The Company (i) is duly organized, validly existing and in good standing under the laws of the State of Delaware,
(ii) has the requisite power and authority to own, lease and operate its properties, to carry on its business as it is now being conducted and to enter into and perform its obligations under this Subscription Agreement, and (iii) is duly
licensed or qualified to conduct its business and, if applicable, is in good standing under the laws of each jurisdiction (other than its jurisdiction of incorporation) in which the conduct of its business or the ownership of its properties or
assets requires such license or qualification, except, with respect to the foregoing clause (iii), where the failure to be in good standing would not reasonably be expected to have a Company Material Adverse Effect. For purposes of this Subscription
Agreement, a “Company Material Adverse Effect” means an event, change, development, occurrence, condition or effect with respect to the Company and its subsidiaries, taken together as a whole (on a consolidated basis), that,
individually or in the aggregate, has a material adverse effect on the business, financial condition, prospects or results of operations of the Company and its subsidiaries, taken together as a whole (on a consolidated basis). 

  
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 b. The Subscribed Securities have been duly authorized and, when issued and
delivered to Subscriber against full payment therefor in accordance with the terms of this Subscription Agreement, will be validly issued and will constitute legal, valid and binding obligations of the Company, enforceable against the Company in
accordance with their terms, except that the enforcement thereof may be subject to applicable bankruptcy, insolvency or similar laws affecting creditors’ rights generally or by equitable principles relating to enforceability (collectively, the
“Enforceability Exceptions”), and will not have been issued in violation of any preemptive rights created under the Company’s organizational documents or the laws of the State of Delaware. The Indenture has been duly authorized
by the Company and, when duly authorized, executed and delivered by the Trustee, will constitute a legal, valid and binding obligation of the Company, enforceable against the Company, respectively, in accordance with its terms, except that the
enforcement thereof may be subject to the Enforceability Exceptions. 
 c. The Subscribed Securities are not, and following
the Closing, will not be, subject to any Transfer Restriction. The term “Transfer Restriction” means any condition to or restriction on the ability of the undersigned to pledge, sell, assign or otherwise transfer the Notes or the Warrants
under any organizational document, policy or agreement of, by or with the Company, but excluding the restrictions on transfer described in the Indenture, the Warrant Agreement and
Section 4© of this Subscription Agreement with respect to the status of the Notes or the Warrants as “restricted securities” pending their registration for resale under the
Securities Act of 1933, as amended (the “Securities Act”) in accordance with the terms of this Subscription Agreement. 

d. This Subscription Agreement has been duly executed and delivered by the Company, and assuming the due authorization,
execution and delivery of the same by Subscriber, this Subscription Agreement shall constitute the valid and legally binding obligation of the Company, enforceable against the Company in accordance with its terms, subject to the Enforceability
Exceptions. 
 e. The execution and delivery of this Subscription Agreement, the issuance and sale of the Subscribed
Securities and the compliance by the Company with all of the provisions of this Subscription Agreement and the consummation of the transactions contemplated 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 pursuant to the terms of (i) any indenture, mortgage, deed of trust, loan
agreement, lease, license or other agreement or instrument to which the Company is a party or by which the Company is bound or to which any of the property or assets of the Company is subject; (ii) the organizational documents of the Company;
or (iii) 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, in the case of clauses (i) and (iii),
would reasonably be expected to have a Company Material Adverse Effect or have a material adverse effect on the Company’s ability to consummate the transactions contemplated hereby, including the issuance and sale of the Subscribed Securities.

 f. Assuming the accuracy of the representations and warranties of the Subscriber, the Company is not required to obtain
any consent, waiver, authorization or order of, give any notice to, or make any filing or registration with, any court or other federal, state, local or other governmental authority, self-regulatory organization (including the New York Stock
Exchange or other person in connection with the execution, delivery 

  
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and performance of this Subscription Agreement (including, without limitation, the issuance of the Subscribed Securities), other than (i) filings required by applicable state securities
laws, (ii) the filing of the Registration Statement pursuant to Section 5 below, (iii) those required by the New York Stock Exchange, including with respect to obtaining stockholder approval, (iv) those
required to consummate the Transaction as provided under the Transaction Agreement, (v) the filing of notification under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, if applicable, and (vi) the failure of which to obtain would
not be reasonably likely to have a Company Material Adverse Effect or have a material adverse effect on the Company’s ability to consummate the transactions contemplated hereby, including the issuance and sale of the Subscribed Securities. 

g. As of their respective dates, all reports required to be filed by the Company with the United States Securities and Exchange
Commission (“Commission”) (the “SEC Reports”) complied in all material respects with the requirements of the Securities Act and the Securities Exchange Act of 1934, and the rules and regulations of the Commission
promulgated thereunder, and none of the SEC Reports, when filed, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light
of the circumstances under which they were made, not misleading. The financial statements of the Company included in the SEC Reports comply in all material respects with applicable accounting requirements and the rules and regulations of the
Commission with respect thereto as in effect at the time of filing and fairly present in all material respects the financial position of the Company as of and for the dates thereof and the results of operations and cash flows for the periods then
ended, subject, in the case of unaudited statements, to normal, year-end audit adjustments. 

h. As of the date hereof and as of immediately prior to the Closing, the authorized share capital of the Company consists of
100,000,000 shares of Common Stock and 1,000,000 shares of preferred stock, par value $0.0001 per share (“Preferred Shares”). As of the Closing Date (and immediately after the consummation of the Transaction), the authorized share
capital of the Company will consist of 250,000,000 shares of Common Stock and 1,000,000 Preferred Shares. As of the date hereof and as of immediately prior to the Closing: (i) 25,893,479 shares of Common Stock and no Preferred Shares were issued and
outstanding; (ii) 15,670,108 warrants, each exercisable to purchase a whole share of Common Stock at $11.50 per full share (the “Warrants”), were issued and outstanding; and (iii) no Common Stock was subject to issuance
upon exercise of outstanding options. As of the date hereof, the Company had no outstanding long-term indebtedness (other than fees payable under the business combination marketing agreement entered into in connection with its initial public
offering) and will not have any long-term indebtedness immediately prior to the Closing. No Warrants are exercisable on or prior to the Closing. All (i) issued and outstanding Common Stock has been duly authorized and validly issued, is fully
paid and non-assessable and is not subject to preemptive rights and (ii) issued and outstanding Warrants and Rights constitute legal, valid and binding obligations of the Company, enforceable against the
Company in accordance with their terms. As of the date hereof, except as set forth above and pursuant to (i) the Other Subscription Agreements, or (ii) the Transaction Agreement, there are no outstanding options, warrants or other rights
to subscribe for, purchase or acquire from the Company any Common Stock or other equity interests in the Company (collectively, “Equity Interests”) or securities convertible into or exchangeable or exercisable for Equity Interests.
As of the date hereof, the Company has no subsidiaries and does not own, directly or indirectly, interests or investments (whether equity or debt) in any person, whether incorporated or unincorporated. There are no stockholder agreements, voting
trusts or 

  
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other agreements or understandings to which the Company is a party or by which it is bound relating to the voting of any Equity Interests, other than (A) the letter agreements entered into
by the Company in connection with the Company’s initial public offering on May 13, 2020 pursuant to which the Company’s sponsor and the Company’s executive officers and independent directors agreed to vote in favor of any
proposed Business Combination (as defined therein), which includes the Transaction, and (B) as contemplated by the Transaction Agreement. 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 Subscribed Securities or (ii) the shares to be issued pursuant to any Other Subscription Agreement. 

i. Except for such matters as have not had and would not be reasonably likely to have a Company Material Adverse Effect or have
a material adverse effect on the Company’s ability to consummate the transactions contemplated hereby, including the issuance and sale of the Subscribed Securities, as of the date hereof, there is no (i) suit, action, proceeding or
arbitration before a governmental authority or arbitrator pending, or, to the knowledge of the Company, threatened in writing against the Company or (ii) judgment, decree, injunction, ruling or order of any governmental authority or arbitrator
outstanding against the Company. 
 j. The issued and outstanding shares of Common Stock are registered pursuant to
Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and are listed for trading on the New York Stock Exchange under the symbol “GIK” (it being understood that the trading symbol will
be changed in connection with the Transaction). There is no suit, action, proceeding or investigation pending or, to the knowledge of the Company, threatened against the Company by the New York Stock Exchange or the Commission with respect to any
intention by such entity to deregister the shares of Common Stock or prohibit or terminate the listing of the shares of Common Stock on the New York Stock Exchange. The Company has taken no action that is designed to terminate the registration of
the shares of Common Stock under the Exchange Act. 
 k. Assuming the accuracy of Subscriber’s representations and
warranties set forth in Section 4 of this Subscription Agreement, no registration under the Securities Act is required for the offer and sale of the Subscribed Securities by the Company to Subscriber. 

l. Neither the Company nor any person acting on its behalf has engaged or will engage in any form of general solicitation or
general advertising (within the meaning of Regulation D) in connection with any offer or sale of the Subscribed Securities. 

m. Except for the Placement Agent (as defined below), no broker or finder is entitled to any brokerage or finder’s fee or
commission from the Company solely in connection with the sale of the Subscribed Securities to Subscriber. 
 n. Except for
such matters as have not had a Company Material Adverse Effect, the Company is, and has been since its inception, in compliance with all state and federal laws applicable to the conduct of its business. The Company has not received any written, or
to its knowledge, other communication from a governmental entity that alleges that the Company is not in compliance with or is in default or violation of any applicable law, except where such non-compliance,
default or violation would not be reasonably likely to have, individually or in the aggregate, a Material Adverse Effect. Except for such matters as have not had and would not be reasonably likely to have, individually or in the


  
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aggregate, a Material Adverse Effect, there is no (i) action, lawsuit, claim or other proceeding, in each case by or before any governmental authority pending, or, to the knowledge of the
Company, threatened against the Company or (ii) judgment, decree, injunction, ruling or order of any governmental entity or arbitrator outstanding against the Company. 

4. Subscriber Representations and Warranties. Subscriber represents and warrants to the Company and the Placement Agent that:

 a. Subscriber (i) is duly organized, validly existing and in good standing under the laws of its jurisdiction of
incorporation, and (ii) has the requisite power and authority to enter into and perform its obligations under this Subscription Agreement. 

b. This Subscription Agreement has been duly executed and delivered by Subscriber, and assuming the due authorization,
execution and delivery of the same by the Company, this Subscription Agreement shall constitute the valid and legally binding obligation of Subscriber, enforceable against Subscriber in accordance with its terms, except as such enforceability may be
limited by bankruptcy, insolvency, reorganization, moratorium and similar laws affecting creditors generally and by the availability of equitable remedies. 

c. The execution and delivery of this Subscription Agreement, the purchase of the Subscribed Securities and the compliance by
Subscriber with all of the provisions of this Subscription Agreement and the consummation of the transactions contemplated 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 Subscriber pursuant to the terms of (i) any indenture, mortgage, deed of trust, loan agreement, lease, license or other
agreement or instrument to which Subscriber is a party or by which Subscriber is bound or to which any of the property or assets of Subscriber is subject; (ii) the organizational documents of Subscriber; or (iii) any statute or any
judgment, order, rule or regulation of any court or governmental agency or body, domestic or foreign, having jurisdiction over Subscriber or any of its properties that, in the case of clauses (i) and (iii), would reasonably be expected to have
a Subscriber Material Adverse Effect. For purposes of this Subscription Agreement, a “Subscriber Material Adverse Effect” means an event, change, development, occurrence, condition or effect with respect to Subscriber that would
reasonably be expected to have a material adverse effect on Subscriber’s ability to consummate the transactions contemplated hereby, including the purchase of the Subscribed Securities. 

d. Subscriber (i) is a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act) or an
institutional “accredited investor” (within the meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act) satisfying the applicable requirements set forth on Annex A hereto and an “institutional account” as
defined in FINRA Rule 4512(c), (ii) is acquiring the Subscribed Securities only for its own account and not for the account of others, or if Subscriber is subscribing for the Subscribed Securities as a fiduciary or agent for one or more investor
accounts, each owner of such account is a qualified institutional buyer and Subscriber has full investment discretion with respect to each such account, and the full power and authority to make the acknowledgements, representations and agreements
herein on behalf of each owner of each such account, and (iii) is not acquiring the Subscribed Securities with a view to, or for offer or sale in connection with, any distribution thereof in violation of the Securities Act (and has provided the
Company with the requested information on Annex A following the signature page hereto). Subscriber is not an entity formed for the specific purpose of acquiring the Subscribed Securities. 

  
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 e. Subscriber understands that the Subscribed Securities are being offered
in a transaction not involving any public offering within the meaning of the Securities Act and that the Subscribed Securities have not been registered under the Securities Act. Subscriber understands that the Subscribed Securities may not be
resold, transferred, pledged or otherwise disposed of by Subscriber absent an effective registration statement under the Securities Act, except (i) to the Company or a subsidiary thereof, or (ii) pursuant to an applicable exemption from
the registration requirements of the Securities Act, and, in each of cases (i) and (ii), in accordance with any applicable securities laws of the applicable states and other jurisdictions of the United States, and that any book-entry position
or certificates representing the Subscribed Securities shall contain a legend to such effect. Subscriber understands and agrees that the Subscribed Securities will be subject to transfer restrictions and, as a result of these transfer restrictions,
Subscriber may not be able to readily resell the Subscribed Securities and may be required to bear the financial risk of an investment in the Subscribed Securities for an indefinite period of time. Subscriber understands that it has been advised to
consult legal counsel prior to making any offer, resale, pledge or transfer of any of the Subscribed Securities. 
 Each book entry for the
Subscribed Securities shall contain a notation, and each certificate (if any) evidencing the Notes and the Warrants shall be stamped or otherwise imprinted with a legend, in substantially the following form: 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS
OF ANY STATE OR OTHER JURISDICTION, AND MAY NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN EXEMPTION THEREFROM. 

f. Subscriber understands and agrees that Subscriber is purchasing the Subscribed Securities directly from the Company.
Subscriber further acknowledges that there have not been, and Subscriber hereby agrees that it is not relying on, any representations, warranties, covenants or agreements made to Subscriber by the Company, any other party to the Transaction or any
other person or entity (including the Placement Agent), expressly or by implication, other than those representations, warranties, covenants and agreements of the Company set forth in this Subscription Agreement. Subscriber acknowledges that certain
information provided by the Company was based on projections, and such projections were prepared based on assumptions and estimates that are inherently uncertain and are subject to a wide variety of significant business, economic and competitive
risks and uncertainties that could cause actual results to differ materially from those contained in the projections. 
 g.
In making its decision to purchase the Subscribed Securities, Subscriber has relied solely upon independent investigation made by Subscriber. Subscriber acknowledges and agrees that Subscriber has received such information as Subscriber deems
necessary in order to make an investment decision with respect to the Subscribed Securities, including with respect to the Company and the Transaction (including Lightning and its respective subsidiaries (collectively, the “Acquired
Companies”)). Without limiting 

  
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the generality of the foregoing, Subscriber acknowledges that Subscriber has reviewed the Company’s filings with the Commission. Subscriber represents and agrees that Subscriber and
Subscriber’s professional advisor(s), if any, have had the full opportunity to ask such questions, receive such answers and obtain such information as Subscriber and such undersigned’s professional advisor(s), if any, have deemed necessary
to make an investment decision with respect to the Subscribed Securities. Subscriber acknowledges and agrees that none of Oppenheimer & Co. Inc. and Nomura Securities International, Inc., each acting as a placement agent to the Company (the
“Placement Agent”), nor any affiliate of the Placement Agent has provided Subscriber with any information or advice with respect to the Subscribed Securities nor is such information or advice necessary or desired. Neither the
Placement Agent nor any of its affiliates has made or makes any representation as to the Company or the Acquired Companies or the quality or value of the Subscribed Securities and the Placement Agent and any of its respective affiliates may have
acquired non-public information with respect to the Company or the Acquired Companies which Subscriber agrees need not be provided to it. In connection with the issuance of the Subscribed Securities to
Subscriber, neither the Placement Agent nor any of its affiliates has acted as a financial advisor or fiduciary to Subscriber. 

h. Subscriber became aware of this offering of the Subscribed Securities solely by means of direct contact between Subscriber
and the Company or by means of contact from the Placement Agent, Lightning and/or their respective advisors (including, without limitation, attorneys, accountants, bankers, consultants and financial advisors), agents, control persons,
representatives, affiliates, directors, officers, managers, members, and/or employees, and/or the representatives of such persons (such parties referred to collectively as “Representatives”). The Subscribed Securities were offered
to Subscriber solely by direct contact between Subscriber and the Company, the Placement Agent, Lightning and/or their respective Representatives. Subscriber acknowledges that it is not relying upon, and has not relied upon, any statement,
representation or warranty made by any person or entity (including, without limitation, the Company, the Placement Agent, Lightning and/or their respective Representatives), other than the representations and warranties contained in this
Subscription Agreement, in making its investment or decision to invest in the Company. Subscriber did not become aware of this offering of the Subscribed Securities, nor were the Subscribed Securities offered to Subscriber, by any other means, and
none of the Company, the Placement Agent, Lightning or their respective Representatives acted as investment advisor, broker or dealer to Subscriber. Subscriber acknowledges that the Company represents and warrants that the Subscribed Securities
(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. 
 i. Subscriber acknowledges that it is aware that there are substantial risks incident to the purchase and ownership
of the Subscribed Securities. 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 Subscribed Securities, and Subscriber has had an opportunity to
seek, and has sought, such accounting, legal, business and tax advice as Subscriber has considered necessary to make an informed investment decision. 

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

  
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 k. Subscriber understands and agrees that no federal or state agency has
passed upon or endorsed the merits of the offering of the Subscribed Securities or made any findings or determination as to the fairness of this investment. 

l. 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, or a person or entity prohibited by any
OFAC sanctions program, or a person or entity whose property and interests in property subject to U.S. jurisdiction are otherwise blocked under any U.S. laws, Executive Orders or regulations, (ii) a person or entity listed on the Sectoral
Sanctions Identifications (“SSI”) List maintained by OFAC or otherwise determined by OFAC to be subject to one or more of the Directives issued under Executive Order 13662 of March 20, 2014, or on any other of the OFAC
Consolidated Sanctions Lists, (iii) an entity owned, directly or indirectly, individually or in the aggregate, 50 percent or more by one or more persons described in subsections (i) or (ii), (iv) a person or entity named on the
U.S. Department of Commerce, Bureau of Industry and Security (“BIS”) Denied Persons List, Entity List, or Unverified List (“BIS Lists”) (collectively with (i) through (iv), a “Restricted
Person”) or (v) a non-U.S. shell bank or providing banking services indirectly to a non-U.S. shell bank. Subscriber agrees to provide law enforcement
agencies, if requested thereby, such records as required by applicable law, provided that Subscriber is permitted to do so under applicable law. Subscriber represents that if it is a financial institution subject to the Bank Secrecy Act (31 U.S.C.
Section 5311 et seq.), as amended by the USA PATRIOT Act of 2001 and its implementing regulations (collectively, the “BSA/PATRIOT Act”), that Subscriber maintains policies and procedures reasonably designed to comply with
applicable obligations under the BSA/PATRIOT Act. Subscriber also represents that, to the extent required, it maintains policies and procedures reasonably designed for the screening of its investors against the OFAC and BIS sanctions programs,
including for Restricted Persons, and otherwise to ensure compliance with all applicable sanctions and embargo laws, statutes, and regulations. Subscriber further represents and warrants that, to the extent required, it maintains policies and
procedures reasonably designed to ensure that the funds held by Subscriber and used to purchase the Subscribed Securities were legally derived. 

m. Subscriber does not have, as of the date hereof, and during the 30-day period
immediately prior to the date hereof such Subscriber has not entered into, any “put equivalent position” as such term is defined in Rule 16a-1 under the Exchange Act or short sale positions with
respect to the securities of the Company. Notwithstanding the foregoing, in the case of a Subscriber that is a multi-managed investment vehicle whereby separate portfolio managers manage separate portions of such Subscriber’s assets and the
portfolio managers have no direct knowledge of the investment decisions made by the portfolio managers managing other portions of such Subscriber’s assets, the representation set forth above shall only apply with respect to the portion of
assets managed by the portfolio manager that made the investment decision to purchase the Subscribed Securities covered by this Agreement. 

  
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 n. If Subscriber is an employee benefit plan that is subject to Title I of
ERISA, a plan, an individual retirement account or other arrangement that is subject to Section 4975 of the Code or an employee benefit plan that is a governmental plan (as defined in Section 3(32) of ERISA), a church plan (as defined in
Section 3(33) of ERISA), a non-U.S. plan (as described in Section 4(b)(4) of ERISA) or other plan that is not subject to the foregoing but may be subject to provisions under any other federal, state,
local, non-U.S. or other laws or regulations that are similar to such provisions of ERISA or the Internal Revenue Code of 1986, as amended, or an entity whose underlying assets are considered to include
“plan assets” of any such plan, account or arrangement (each, a “Plan”) subject to the fiduciary or prohibited transaction provisions of ERISA or Section 4975 of the Code, the Subscriber represents and warrants that
neither the Company, nor any of its respective affiliates (the “Transaction Parties”) has acted as the Plan’s fiduciary, or has been relied on for advice, with respect to its decision to acquire and hold the Subscribed
Securities, and none of the Transaction Parties shall at any time be relied upon as the Plan’s fiduciary with respect to any decision to acquire, continue to hold or transfer the Subscribed Securities. 

o. Subscriber at the Closing will have sufficient funds to pay the Purchase Price pursuant to
Section 2(b) of this Subscription Agreement. 
 p. No disclosure or offering document has been
prepared by the Placement Agent in connection with the offer and sale of the Subscribed Securities. The Placement Agent and each of its directors, officers, employees, representatives and controlling persons have made no independent investigation
with respect to the Company or the Subscribed Securities or the accuracy, completeness or adequacy of any information supplied to the Subscriber by the Company. In connection with the issue and purchase of the Common Stock, the Placement Agent has
not acted as the Subscriber’s financial advisor or fiduciary. 
 q. Subscriber agrees that, notwithstanding
Section 8(j) of this Subscription Agreement, the Placement Agent may rely upon the representations and warranties made by Subscriber to the Company in this Subscription Agreement. 

5. Registration of Subscribed Securities. 

a. The Company agrees that, within forty five (45) calendar days after the consummation of the Transaction (the
“Filing Deadline”), the Company will file with the Commission (at the Company’s sole cost and expense) a registration statement (the “Registration Statement”) registering the resale of the (I) shares of
Common Stock issuable upon (x) conversion of the Subscribed Notes and (y) exercise of the Subscribed Warrants and (II) the Warrants (together, the “Registrable Securities”), and the Company shall use its commercially
reasonable efforts to have the Registration Statement declared effective as soon as practicable after the filing thereof, but no later than the 60th calendar day (or 90th calendar day if the Commission notifies the Company that it will “review” the Registration Statement) following the Filing Deadline (such date, the “Effectiveness Date”);
provided, however, that the Company’s obligations to include the Registrable Securities in the Registration Statement are contingent upon the undersigned furnishing in writing to the Company such information regarding the undersigned, the
securities of the Company held by the undersigned and the intended method of disposition of the Registrable Securities as shall be reasonably requested by the Company to effect the registration of the Registrable Securities, and shall execute such
documents in connection with such registration as the Company may reasonably request that are customary of a selling stockholder in similar situations. The Company will provide a draft of the Registration Statement to the Subscriber for review at
least three (3) business days in advance of filing the Registration 

  
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Statement. In no event shall the Subscriber be identified as a statutory underwriter in the Registration Statement unless requested by the Commission; provided, that if the Commission
requests that the Subscriber be identified as a statutory underwriter in the Registration Statement, the Subscriber will have an opportunity to withdraw from the Registration Statement. Notwithstanding the foregoing, if the Commission prevents the
Company from including any or all of the shares proposed to be registered under the Registration Statement due to limitations on the use of Rule 415 of the Securities Act for the resale of the Registrable Securities by the applicable shareholders or
otherwise, such Registration Statement shall register for resale such number of Registrable Securities which is equal to the maximum number of Registrable Securities as is permitted by the SEC. In such event, the number of Registrable Securities to
be registered for each selling shareholder named in the Registration Statement shall be reduced pro rata among all such selling shareholders. The Company will use its commercially reasonable efforts to maintain the continuous effectiveness of
the Registration Statement, and to be supplemented and amended to the extent necessary to ensure that such Registration Statement is available or, if not available, that another registration statement is available for the resale of the Registrable
Securities, until the earliest of (i) the date on which the Registrable Securities may be resold without volume or manner of sale limitations pursuant to Rule 144 promulgated under the Securities Act, (ii) the date on which such
Registrable Securities have actually been sold and (iii) the date which is three years after the Closing. For purposes of clarification, any failure by the Company to file the Registration Statement by the Filing Deadline or to effect such
Registration Statement by the Effectiveness Date shall not otherwise relieve the Company of its obligations to file or effect the Registration Statement set forth in this Section 5. 

b. Notwithstanding anything to the contrary in this Subscription Agreement, the Company shall be entitled to delay or postpone
the effectiveness of the Registration Statement, and from time to time to require any Subscriber not to sell under the Registration Statement or to suspend the effectiveness thereof, if the negotiation or consummation of a transaction by the Company
or its subsidiaries is pending or an event has occurred, which negotiation, consummation or event, the Company’s board of directors reasonably believes, upon the advice of legal counsel, would require additional disclosure by the Company in the
Registration Statement of material information that the Company has a bona fide business purpose for keeping confidential and the non-disclosure of which in the Registration Statement would be expected, in the
reasonable determination of the Company’s board of directors, upon the advice of legal counsel, to cause the Registration Statement to fail to comply with applicable disclosure requirements (each such circumstance, a “Suspension
Event”); provided, however, that the Company may not delay or suspend the Registration Statement on more than two occasions or for more than sixty (60) consecutive calendar days, or more than ninety (90) total calendar days, in
each case during any twelve-month period. Upon receipt of any written notice from the Company of the happening of any Suspension Event (which notice shall not contain material non-public information) during
the period that the Registration Statement is effective or if as a result of a Suspension Event the Registration Statement or related prospectus contains any untrue statement of a material fact or omits to state any material fact required to be
stated therein or necessary to make the statements therein, in light of the circumstances under which they were made (in the case of the prospectus) not misleading, Subscriber agrees that (i) it will immediately discontinue offers and sales of
the Registrable Securities under the Registration Statement (excluding, for the avoidance of doubt, sales conducted pursuant to Rule 144) until such Subscriber receives copies of a supplemental or amended prospectus (which the Company agrees to
promptly prepare) that corrects the misstatement(s) or 

  
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omission(s) referred to above and receives notice that any post-effective amendment has become effective or unless otherwise notified by the Company that it may resume such offers and sales, and
(ii) it will maintain the confidentiality of any information included in such written notice delivered by the Company unless otherwise required by law or subpoena. If so directed by the Company, Subscriber will deliver to the Company or, in
such Subscriber’s sole discretion destroy, all copies of the prospectus covering the Registrable Securities in such Subscriber’s possession; provided, however, that this obligation to deliver or destroy all copies of the prospectus
covering the Registrable Securities shall not apply (i) to the extent such Subscriber is required to retain a copy of such prospectus (a) in order to comply with applicable legal, regulatory, self-regulatory or professional requirements or
(b) in accordance with a bona fide pre-existing document retention policy or (ii) to copies stored electronically on archival servers as a result of automatic data
back-up. 
 c. The Company shall, notwithstanding any termination of this
Subscription Agreement, indemnify, defend and hold harmless Subscriber (to the extent a seller under the Registration Statement), and its officers, directors and agents, and each person who controls such Subscriber (within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act) to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including, without limitation, reasonable
attorneys’ fees) and expenses (collectively, “Losses”), as incurred, that arise out of or are based upon (i) any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any prospectus
included in the Registration Statement or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission to state a material fact required to be
stated therein or necessary to make the statements therein (in the case of any prospectus or form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading, or (ii) any violation or alleged
violation by the Company of the Securities Act, Exchange Act or any state securities law or any rule or regulation thereunder, in connection with the performance of its obligations under this Section 5, except to the
extent, but only to the extent, that such untrue statements, alleged untrue statements, omissions or alleged omissions are based upon information regarding such Subscriber furnished in writing to the Company by such Subscriber expressly for use
therein or such Subscriber has omitted a material fact from such information or otherwise violated the Securities Act, Exchange Act or any state securities law or any rule or regulation thereunder; provided, however, that the indemnification
contained in this Section 5 shall not apply to amounts paid in settlement of any Losses if such settlement is effected without the consent of the Company (which consent shall not be unreasonably withheld, conditioned or
delayed), nor shall the Company be liable for any Losses to the extent they arise out of or are based upon a violation which occurs (A) in reliance upon and in conformity with written information furnished by a Subscriber, (B) in
connection with any failure of such person to deliver or cause to be delivered a prospectus made available by the Company in a timely manner, (C) as a result of offers or sales effected by or on behalf of any person by means of a freewriting
prospectus (as defined in Rule 405) that was not authorized in writing by the Company, or (D) in connection with any offers or sales effected by or on behalf of a Subscriber in violation of Section 5(b) of this
Subscription Agreement. The Company shall notify such Subscriber promptly of the institution, threat or assertion of any proceeding arising from or in connection with the transactions contemplated by this Section 5 of which
the Company is aware. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of an indemnified party and shall survive the transfer of the Registrable Securities by such Subscriber. 

  
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 d. If the total number of shares of Common Stock that the Subscriber and any
other person(s) intend to include in an underwritten offering exceeds the number of shares of Common Stock that can be sold in an underwritten offering without being likely to have an adverse effect on the price, timing or distribution of shares of
the Common Stock offered or the market for the shares of Common Stock, then the shares of Common Stock to be included in such offering shall include the number of shares of Common Stock that the managing underwriter of the offering advises the
Company can be sold without having such adverse effect, with such number to be allocated (i) first, to the Company or other party or parties requesting or initiating such registration or to any other holder of securities of the Company having
rights of registration pursuant to an existing registration rights agreement and (ii) second, by the Subscriber who has requested participation in such underwritten offering and by the other holders of shares of Common Stock with registration
rights entitling them to participate in such underwritten offering, allocated among the Subscriber and other holders pro rata on the basis of the number of shares of Common Stock proposed to be sold by each applicable holder in such underwritten
offering (based, for each such participant, on the percentage derived by dividing (x) the number of shares of Common Stock proposed to be sold by such participant in such underwritten offering by (y) the aggregate number of shares of
Common Stock proposed to be sold by all participants in such underwritten offering) or in such manner as they may agree. 

e. Subscriber shall, severally and not jointly with the Other Subscribers, indemnify and hold harmless the Company, its
directors, officers, agents and employees, and each person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), to the fullest extent permitted by applicable law, from and
against all Losses, as incurred, arising out of or based upon any untrue or alleged untrue statement of a material fact contained in any Registration Statement, any prospectus included in the Registration Statement, or any form of prospectus, or in
any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any
prospectus, or any form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading to the extent, but only to the extent, that such untrue statements or omissions are based upon information
regarding such Subscriber furnished in writing to the Company by such Subscriber expressly for use therein; provided, however, that the indemnification contained in this Section 5 shall not apply to amounts paid in
settlement of any Losses if such settlement is effected without the consent of such Subscriber (which consent shall not be unreasonably withheld, conditioned or delayed). In no event shall the liability of any Subscriber be greater in amount than
the dollar amount of the net proceeds received by such Subscriber upon the sale of the Registrable Securities giving rise to such indemnification obligation. Subscriber shall notify the Company promptly of the institution, threat or assertion of any
proceeding arising from or in connection with the transactions contemplated by this Section 5 of which such Subscriber is aware. Such indemnity shall remain in full force and effect regardless of any investigation made by
or on behalf of an indemnified party and shall survive the transfer of the Registrable Securities by such Subscriber. 

  
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 6. Termination. This Subscription 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) upon the mutual written agreement of the Company and the Subscriber to terminate this Subscription Agreement, (c) if, on the Closing Date of the Transaction, any of the conditions
to Closing set forth in Section 2 of this Subscription Agreement have not been satisfied as of the time required hereunder to be so satisfied or waived (to the extent a valid waiver is capable of being issued) by the party
entitled to grant such waiver and, as a result thereof, the transactions contemplated by this Subscription Agreement are not consummated, or (d) June 30, 2021 (the “Outside Date”); provided, that nothing herein will
relieve any party from liability for any willful breach hereof (including, for the avoidance of doubt, a Subscriber’s willful breach of Section 2(c) of this Subscription Agreement with respect to its representations,
warranties and covenants as of the date of the Closing) prior to the time of termination, and each party will be entitled to any remedies at law or in equity to recover losses, liabilities or damages arising from such breach. The Company shall
notify Subscriber of the termination of the Transaction Agreement promptly after the termination thereof. 
 7. Trust Account Waiver.
Subscriber hereby acknowledges that the Company has established a trust account (the “Trust Account”) containing the proceeds of its initial public offering (the “IPO”) and from certain private placements occurring
simultaneously with the IPO (including interest accrued from time to time thereon) for the benefit of the Company’s public stockholders and certain other parties (including the underwriters of the IPO). For and in consideration of the Company
entering into this Subscription Agreement, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Subscriber hereby (i) agrees that it does not now and shall not at any time hereafter have
any right, title, interest or claim of any kind in or to any assets held in the Trust Account, and shall not make any claim against the Trust Account, regardless of whether such claim arises as a result of, in connection with or relating in any way
to this Subscription Agreement or any other matter, and regardless of whether such claim arises based on contract, tort, equity or any other theory of legal liability (any and all such claims are collectively referred to hereafter as the
“Released Claims”), (ii) irrevocably waives any Released Claims that it may have against the Trust Account now or in the future as a result of, or arising out of, any negotiations, contracts or agreements with the Company, and
(iii) will not seek recourse against the Trust Account for any reason whatsoever; provided however, that nothing in this Section 7 shall be deemed to limit any Subscriber’s right to distributions from the Trust
Account in accordance with the Company’s amended and restated certificate of incorporation in respect of any redemptions by Subscriber of its shares of public Common Stock of the Company acquired by any means other than pursuant to this
Subscription Agreement. Subscriber agrees not to seek recourse or make or bring any action, suit, claim or other proceeding against the Trust Account as a result of, or arising out of, this Subscription Agreement, the transactions contemplated
hereby or the Subscribed Securities regardless of whether such claim arises based on contract, tort, equity or any other theory of legal liability. Each Subscriber acknowledges and agrees that it shall not have any redemption rights with respect to
the Subscribed Securities pursuant to the Company’s organizational documents in connection with the Transaction or any other business combination, any subsequent liquidation of the Trust Account, the Company or otherwise. In the event
Subscriber has any claim against the Company as a result of, or arising out of, this Subscription Agreement, the transactions contemplated hereby or the Subscribed Securities, it shall pursue such claim solely against the Company and its assets
outside the Trust Account and not against the Trust Account or any monies or other assets in the Trust Account. 
 8. Miscellaneous.

 a. All notices, requests, demands, claims, and other communications hereunder shall be in writing. Any notice, request,
demand, claim, or other communication hereunder shall be deemed duly given (i) when delivered personally to the recipient, (ii) when sent by electronic mail, on the date of transmission to such recipient; provided, that such notice,
request, demand, claim or other communication is also sent to the recipient 

  
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pursuant to clauses (i), (iii) or (iv) of this Section 8(a), (iii) one Business Day after being sent to the recipient by reputable overnight courier service
(charges prepaid), or (iv) four (4) Business Days after being mailed to the recipient by certified or registered mail, return receipt requested and postage prepaid, and, in each case, addressed to the intended recipient at its address specified
on the signature page hereof or to such electronic mail address or address as subsequently modified by written notice given in accordance with this Section 8(a). 

b. Subscriber acknowledges that the Company and others (including Placement Agent) will rely on the acknowledgments,
understandings, agreements, representations and warranties contained in this Subscription Agreement. Prior to the Closing, Subscriber agrees to promptly notify the Company and the Placement Agent if it becomes aware that any of the acknowledgments,
understandings, agreements, representations and warranties of Subscriber set forth herein are no longer accurate in all material respects. The Company acknowledges that Subscriber and others (including Placement Agent) will rely on the
acknowledgments, understandings, agreements, representations and warranties contained in this Subscription Agreement. Prior to the Closing, the Company agrees to promptly notify Subscriber if it becomes aware that any of the acknowledgments,
understandings, agreements, representations and warranties of the Company set forth herein are no longer accurate in all material respects. 

c. Each of the Company and Subscriber is irrevocably authorized to produce this Subscription 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 to the extent required by law or regulatory bodies. 

d. Subscriber shall pay all of its own expenses in connection with this Subscription Agreement and the transactions
contemplated herein. 
 e. Except as otherwise provided in clause (d) above, the Company shall be solely responsible for
and shall bear all of costs and expenses incurred by or on behalf of the Company in connection with this Agreement 
 f.
Neither this Subscription Agreement nor any rights that may accrue to Subscriber hereunder (other than the Subscribed Securities acquired hereunder, if any) may be transferred or assigned. Neither this Subscription Agreement nor any rights that may
accrue to the Company hereunder may be transferred or assigned (provided, that, for the avoidance of doubt, the Company may transfer the Subscription Agreement and its rights hereunder solely in connection with the consummation of the Transaction
and exclusively to another entity under the control of, or under common control with, the Company). Notwithstanding the foregoing, Subscriber may assign its rights and obligations under this Subscription Agreement to one or more of its affiliates
(including other investment funds or accounts managed or advised by the investment manager who acts on behalf of the Subscriber) or, with the Company’s prior written consent, to another person, provided that no such assignment shall relieve
Subscriber of its obligations hereunder if any such assignee fails to perform such obligations, unless the Company has given its prior written consent to such relief. 

g. All the agreements, representations and warranties made by each party hereto in this Subscription Agreement shall survive
the Closing. 

  
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 h. The Company may request from Subscriber such additional information as
the Company may reasonably deem necessary to evaluate the eligibility of Subscriber to acquire the Subscribed Securities, and Subscriber shall provide such information as may be reasonably requested, to the extent readily available and to the extent
consistent with its internal policies and procedures provided that Company agrees to keep any such information provided by Subscriber confidential. 

i. This Subscription Agreement may not be amended, modified, waived or terminated except by an instrument in writing, signed by
the party against whom enforcement of such modification, waiver, or termination is sought; provided, that Section 4, this Section 8(i) and Section 8(k) of this
Subscription Agreement may not be amended, terminated or waived in a manner that is material and adverse to the Placement Agent without the written consent of the Placement Agent. 

j. This Subscription 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, except that any confidentiality agreement with respect to the undersigned or its affiliates shall remain in full force and effect.

 k. Except as otherwise provided herein, this Subscription 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. The parties hereto agree that the Placement Agent is an express third-party beneficiary of its express rights in
Section 3, Section 4, Section 8(i) and this Section 8(k) of this Subscription Agreement. Each of the parties hereto shall be entitled to seek and
obtain equitable relief, without proof of actual damages, including an injunction or injunctions or order for specific performance to prevent breaches of this Subscription Agreement and to enforce specifically the terms and provisions of this
Subscription Agreement to cause Subscriber to fund the Purchase Price and cause the Closing to occur if the conditions in Section 2© this Subscription
Agreement have been satisfied or, to the extent permitted by applicable law, waived. Each party hereto further agrees that the none of the parties hereto or the Placement Agent shall be required to obtain, furnish or post any bond or similar
instrument in connection with or as a condition to obtaining any remedy referred to in this Section 8(k), and each party hereto irrevocably waives any right it may have to require the obtaining, furnishing or posting of any
such bond or similar instrument 
 l. If any provision of this Subscription Agreement shall be invalid, illegal or
unenforceable, the validity, legality or enforceability of the remaining provisions of this Subscription Agreement shall not in any way be affected or impaired thereby and shall continue in full force and effect. 

m. This Subscription Agreement may be executed and delivered 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. 

  
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 n. The parties hereto agree that irreparable damage would occur in the event
that any of the provisions of this Subscription 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 Subscription Agreement and to enforce specifically the terms and provisions of this Subscription 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. 
 o. This Subscription Agreement shall be governed by, and construed in accordance with, the laws of the State of
New York, without regard to the principles of conflicts of laws that would otherwise require the application of the law of any other state. 

p. EACH PARTY HEREBY WAIVES ITS RESPECTIVE RIGHTS TO A TRIAL BY JURY OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING
OUT OR RELATED TO THIS SUBSCRIPTION AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY IN ANY ACTION, PROCEEDING OR OTHER LITIGATION OF ANY TYPE BROUGHT BY ANY PARTY AGAINST ANY OTHER PARTY OR ANY AFFILIATE OF ANY OTHER SUCH PARTY, WHETHER WITH
RESPECT TO CONTRACT CLAIMS, TORT CLAIMS OR OTHERWISE. THE PARTIES AGREE THAT ANY SUCH CLAIM OR CAUSE OF ACTION SHALL BE TRIED BY A COURT TRIAL WITHOUT A JURY. WITHOUT LIMITING THE FOREGOING, THE PARTIES FURTHER AGREE THAT THEIR RESPECTIVE RIGHT TO A
TRIAL BY JURY IS WAIVED BY OPERATION OF THIS SECTION AS TO ANY ACTION, COUNTERCLAIM OR OTHER PROCEEDING WHICH SEEKS, IN WHOLE OR IN PART, TO CHALLENGE THE VALIDITY OR ENFORCEABILITY OF THIS SUBSCRIPTION AGREEMENT OR ANY PROVISION HEREOF. THIS WAIVER
SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS SUBSCRIPTION AGREEMENT. 
 q.
The parties agree that all disputes, legal actions, suits and proceedings arising out of or relating to this Subscription Agreement must be brought exclusively in the state courts of New York or in the federal courts located in the state and county
of New York (collectively the “Designated Courts”). Each party hereby consents and submits to the exclusive jurisdiction of the Designated Courts. No legal action, suit or proceeding with respect to this subscription agreement may
be brought in any other forum. Each party hereby irrevocably waives all claims of immunity from jurisdiction and any objection which such party may now or hereafter have to the laying of venue of any suit, action or proceeding in any Designated
Court, including any right to object on the basis that any dispute, action, suit or proceeding brought in the Designated Courts has been brought in an improper or inconvenient forum or venue. Each of the parties also agrees that delivery of any
process, summons, notice or document to a party hereof in compliance with Section 8(a) of this Subscription Agreement shall be effective service of process for any action, suit or proceeding in a Designated Court with
respect to any matters to which the parties have submitted to jurisdiction as set forth above. 
 r. This Subscription
Agreement may only be enforced against, and any claim, action, suit or other legal proceeding based upon, arising out of, or related to this Subscription Agreement, or the negotiation, execution or performance of this Subscription Agreement, may
only be brought against the entities that are expressly named as parties 

  
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hereto and then only with respect to the specific obligations set forth herein with respect to such party. No past, present or future director, officer, employee, incorporator, manager, member,
partner, stockholder, affiliate, agent, attorney or other representative of any party hereto or of any affiliate of any party hereto, or any of their successors or permitted assigns, shall have any liability for any obligations or liabilities of any
party hereto under this Subscription Agreement or for any claim, action, suit or other legal proceeding based on, in respect of or by reason of the transactions contemplated hereby. 

s. The Company shall, by 9:00 a.m., New York City time, on the first (1st)
business day immediately following the date of this Subscription Agreement, issue one or more press releases or file with the Commission a Current Report on Form 8-K (collectively, the “Disclosure
Document”) disclosing, to the extent not previously publicly disclosed, all material terms of the transactions contemplated hereby (and by the Other Subscription Agreements), the Transaction and any other material, nonpublic information
that the Company has provided to Subscriber at any time prior to the filing of the Disclosure Document. From and after the issuance of the Disclosure Document, Subscriber shall not be in possession of any material,
non-public information received from the Company or any of its officers, directors or employees or the Placement Agent. Notwithstanding the foregoing, the Company shall not publicly disclose the name of
Subscriber or any affiliate or investment advisor of Subscriber, or include the name of Subscriber or any affiliate or investment advisor of Subscriber in any press release or in any filing with the Commission or any regulatory agency or trading
market, without the prior written consent (including by e-mail) of Subscriber, except as required by the federal securities laws, rules or regulations and to the extent such disclosure is required by other
laws, rules or regulations, at the request of the staff of the Commission or regulatory agency or under New York Stock Exchange regulations, in which case the Company shall provide Subscriber with prior written notice (including by e-mail) of such permitted disclosure, and shall reasonably consult with Subscriber regarding such disclosure. 

t. The obligations of Subscriber under this Subscription Agreement are several and not joint with the obligations of any Other
Subscriber or any other investor under the Other Subscription Agreements, and Subscriber shall not be responsible in any way for the performance of the obligations of any Other Subscriber under this Subscription Agreement or any other investor under
the Other Subscription Agreements. The decision of Subscriber to purchase Subscribed Securities pursuant to this Subscription Agreement has been made by Subscriber independently of any Other Subscriber or any other investor and independently of any
information, materials, statements or opinions as to the business, affairs, operations, assets, properties, liabilities, results of operations, condition (financial or otherwise) or prospects of the Company or any of its subsidiaries which may have
been made or given by any Other Subscriber or investor or by any agent or employee of any Other Subscriber or investor, and neither Subscriber nor any of its agents or employees shall have any liability to any Other Subscriber or investor (or any
other person) relating to or arising from any such information, materials, statements or opinions. Nothing contained herein or in any Other Subscription Agreement, and no action taken by Subscriber or investor pursuant hereto or thereto, shall be
deemed to constitute the Subscriber and other investors as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Subscriber and other investors are in any way acting in concert or as a group
with respect to such obligations or the transactions contemplated by the this Subscription Agreement and the Other Subscription Agreements. Subscriber acknowledges that no Other Subscriber has acted as agent for the Subscriber in connection with
making its investment hereunder and no Other Subscriber will be acting 

  
 20 













 
as agent of the Subscriber in connection with monitoring its investment in the Subscribed Securities or enforcing its rights under this Subscription Agreement. Subscriber shall be entitled to
independently protect and enforce its rights, including without limitation the rights arising out of this Subscription Agreement, and it shall not be necessary for any Other Subscriber or investor to be joined as an additional party in any
proceeding for such purpose. 
 [Signature pages follow.] 

  
 21 













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

			
	GIGCAPITAL3, INC.
	By:	 	  

		 	Name: Dr. Avi Katz
		 	Title: Chief Executive Officer
	Address for Notices:
	1731 Embarcadero Road, Suite 200
	Palo Alto, California 94303


 Signature Page to GigCapital3, Inc. Subscription Agreement 













			
	SUBSCRIBER:	 	
	Signature of Subscriber:


			
		
	By:	 	
                     
    

	Name:	 	
	Title:	 	
	Date:	 	  



			
	Name of Subscriber:
	
	  
 (Please print. Please
indicate name and capacity of person signing above)

	
	  
 Name in which shares are
to be registered
 (if different):

	Email Address:	 	  

	Subscriber’s EIN:
	
	  
 Jurisdiction of
residency:                                       
   



			
	
	Aggregate Principal Amount of Subscribed Notes subscribed for:
		 	  

	
	Aggregate Number of Subscribed Warrants subscribed for:
		 	  

		
	Aggregate Purchase Price:	 	$                            

 You must pay the Purchase Price by wire transfer of United States dollars in immediately available funds to
the account of the Company specified by the Company in the Closing Notice. 
 Signature Page to GigCapital3, Inc. Subscription Agreement













 ANNEX A 

ELIGIBILITY REPRESENTATIONS OF SUBSCRIBER 

This Annex A should be completed and signed by Subscriber 

and constitutes a part of the Subscription Agreement. 
  

	A.	 QUALIFIED INSTITUTIONAL BUYER STATUS (Please check the box, if applicable) 



 

	 	☐	 Subscriber is a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act).



  

	B.	 FINRA INSTITUTIONAL INVESTOR STATUS (Please check the box) 



 

	 	☐	 Subscriber is a “institutional investor” (as defined in FINRA Rule 2111). 



 

	C.	 ACCREDITED INVESTOR STATUS (Please check the box) 



 

	 	☐	 Subscriber is an “accredited investor” (within the meaning of Rule 501(a) under the Securities Act)
and has marked and initialed the appropriate box below indicating the provision under which it qualifies as an “accredited investor.” 


  

	D.	 AFFILIATE STATUS 



(Please check the applicable box) 
 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. 
 Rule 501(a), in relevant part, states that an “accredited investor” shall mean any person who comes within any of the
below listed categories, or who the issuer reasonably believes comes within any of the below listed categories, at the time of the sale of the securities to that person. Subscriber has indicated, by marking and initialing the appropriate box below,
the provision(s) below which apply to Subscriber and under which Subscriber accordingly qualifies as an “accredited investor.” 
  

	 	☐	 Any bank, registered broker or dealer, insurance company, registered investment company, business development
company, or small business investment company; 


  

	 	☐	 Any 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 such plan has total assets in excess of $5,000,000; 


  

	 	☐	 Any employee benefit plan, within the meaning of the Employee Retirement Income Security Act of 1974, if a
bank, insurance company, or registered investment advisor makes the investment decisions, or if the plan has total assets in excess of $5,000,000; 


  

	 	☐	 Any corporation, similar business trust, partnership or any organization described in Section 501©(3) of the Internal Revenue Code, not formed for the specific purpose of acquiring the securities offered, with total assets in excess of $5,000,000; 



 

	 	☐	 Any director, executive officer, or general partner of the issuer of the securities being offered or sold, or
any director, executive officer, or general partner of a general partner of that issuer; 



  
 A-1 














	 	☐	 Any natural person whose individual net worth, or joint net worth with that person’s spouse, at the time
of his purchase exceeds $1,000,000. For purposes of calculating a natural person’s net worth: (a) the person’s primary residence must not be included as an asset; (b) indebtedness secured by the person’s primary residence up
to the estimated fair market value of the primary residence must not be included as a liability (except that if the amount of such indebtedness outstanding at the time of calculation exceeds the amount outstanding 60 days before such time, other
than as a result of the acquisition of the primary residence, the amount of such excess must be included as a liability); and (c) indebtedness that is secured by the person’s primary residence in excess of the estimated fair market value
of the residence must be included as a liability; 


  

	 	☐	 Any natural person who had an individual income in excess of $200,000 in each of the two most recent years or
joint income with that person’s spouse in excess of $300,000 in each of those years and has a reasonable expectation of reaching the same income level in the current year. 



 

	 	☐	 Any trust with assets in excess of $5,000,000, not formed to acquire the securities offered, whose purchase is
directed by a sophisticated person; or 


  

	 	☐	 Any entity in which all of the equity owners are accredited investors meeting one or more of the above tests or
one of the following tests. 


 [Specify which tests: ] 

 

	
	SUBSCRIBER:
	Print Name:
	By:
	Name:
	Title:


  
 A-2 













 EXHIBIT A 

[Form of Indenture] 
 [LIGHTNING
EMOTORS, INC.] 
 AND 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Trustee 
 INDENTURE 

Dated as of [                ], 2021 

7.50% Convertible Senior Notes due 2024 












 TABLE OF CONTENTS 

 

							
	 	 	 	  	PAGE	 
	 ARTICLE 1 DEFINITIONS
	  	 	1	 
			
	 Section 1.01
	 	Definitions	  	 	1	 
	 Section 1.02
	 	References to Interest	  	 	12	 
		
	 ARTICLE 2 ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES
	  	 	13	 
			
	 Section 2.01
	 	Designation and Amount	  	 	13	 
	 Section 2.02
	 	Form of Notes	  	 	13	 
	 Section 2.03
	 	Date and Denomination of Notes; Payments of Interest and Defaulted Amounts	  	 	14	 
	 Section 2.04
	 	Execution, Authentication and Delivery of Notes	  	 	15	 
	 Section 2.05
	 	Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary	  	 	15	 
	 Section 2.06
	 	Mutilated, Destroyed, Lost or Stolen Notes	  	 	21	 
	 Section 2.07
	 	Temporary Notes	  	 	22	 
	 Section 2.08
	 	Cancellation of Notes Paid, Converted, Etc.	  	 	22	 
	 Section 2.09
	 	CUSIP Numbers	  	 	22	 
	 Section 2.10
	 	Additional Notes; Repurchases	  	 	22	 
		
	 ARTICLE 3 SATISFACTION AND DISCHARGE
	  	 	23	 
			
	 Section 3.01
	 	Satisfaction and Discharge	  	 	23	 
		
	 ARTICLE 4 PARTICULAR COVENANTS OF THE COMPANY
	  	 	23	 
			
	 Section 4.01
	 	Payment of Principal and Interest	  	 	23	 
	 Section 4.02
	 	Maintenance of Office or Agency	  	 	23	 
	 Section 4.03
	 	Appointments to Fill Vacancies in Trustee’s Office	  	 	24	 
	 Section 4.04
	 	Provisions as to Paying Agent	  	 	24	 
	 Section 4.05
	 	Existence	  	 	25	 
	 Section 4.06
	 	Rule 144A Information Requirement and Annual Reports	  	 	25	 
	 Section 4.07
	 	Stay, Extension and Usury Laws	  	 	26	 
	 Section 4.08
	 	Compliance Certificate; Statements as to Defaults	  	 	26	 
	 Section 4.09
	 	Further Instruments and Acts	  	 	26	 
	 Section 4.10
	 	Indebtedness Incurrence	  	 	26	 
		
	 ARTICLE 5 LISTS OF HOLDERS AND REPORTS BY THE COMPANY AND THE TRUSTEE
	  	 	28	 
			
	 Section 5.01
	 	Lists of Holders	  	 	28	 
	 Section 5.02
	 	Preservation and Disclosure of Lists	  	 	28	 


  
 i 














							
		
	 ARTICLE 6 DEFAULTS AND REMEDIES
	  	 	28	 
			
	 Section 6.01
	 	Events of Default	  	 	28	 
	 Section 6.02
	 	Acceleration; Rescission and Annulment	  	 	29	 
	 Section 6.03
	 	Additional Interest	  	 	30	 
	 Section 6.04
	 	Payments of Notes on Default; Suit Therefor	  	 	31	 
	 Section 6.05
	 	Application of Monies Collected by Trustee	  	 	32	 
	 Section 6.06
	 	Proceedings by Holders	  	 	33	 
	 Section 6.07
	 	Proceedings by Trustee	  	 	34	 
	 Section 6.08
	 	Remedies Cumulative and Continuing	  	 	34	 
	 Section 6.09
	 	Direction of Proceedings and Waiver of Defaults by Majority of Holders	  	 	34	 
	 Section 6.10
	 	Notice of Defaults	  	 	35	 
	 Section 6.11
	 	Undertaking to Pay Costs	  	 	35	 
	 Section 6.12
	 	Company’s Failure to Timely Convert	  	 	35	 
		
	 ARTICLE 7 CONCERNING THE TRUSTEE
	  	 	36	 
			
	 Section 7.01
	 	Duties and Responsibilities of Trustee	  	 	36	 
	 Section 7.02
	 	Reliance on Documents, Opinions, Etc.	  	 	38	 
	 Section 7.03
	 	No Responsibility for Recitals, Etc.	  	 	40	 
	 Section 7.04
	 	Trustee, Paying Agents, Conversion Agents or Note Registrar May Own Notes	  	 	40	 
	 Section 7.05
	 	Monies and Shares of Common Stock to Be Held in Trust	  	 	40	 
	 Section 7.06
	 	Compensation and Expenses of Trustee	  	 	40	 
	 Section 7.07
	 	Officer’s Certificate as Evidence	  	 	41	 
	 Section 7.08
	 	Eligibility of Trustee	  	 	41	 
	 Section 7.09
	 	Resignation or Removal of Trustee	  	 	41	 
	 Section 7.10
	 	Acceptance by Successor Trustee	  	 	42	 
	 Section 7.11
	 	Succession by Merger, Etc.	  	 	43	 
	 Section 7.12
	 	Trustee’s Application for Instructions from the Company	  	 	43	 
		
	 ARTICLE 8 CONCERNING THE HOLDERS
	  	 	43	 
			
	 Section 8.01
	 	Action by Holders	  	 	43	 
	 Section 8.02
	 	Proof of Execution by Holders	  	 	44	 
	 Section 8.03
	 	Who Are Deemed Absolute Owners	  	 	44	 
	 Section 8.04
	 	Company-Owned Notes Disregarded	  	 	44	 
	 Section 8.05
	 	Revocation of Consents; Future Holders Bound	  	 	44	 
		
	 ARTICLE 9 HOLDERS’ MEETINGS
	  	 	45	 
			
	 Section 9.01
	 	Purpose of Meetings	  	 	45	 
	 Section 9.02
	 	Call of Meetings by Trustee	  	 	45	 
	 Section 9.03
	 	Call of Meetings by Company or Holders	  	 	45	 
	 Section 9.04
	 	Qualifications for Voting	  	 	45	 
	 Section 9.05
	 	Regulations	  	 	46	 
	 Section 9.06
	 	Voting	  	 	46	 
	 Section 9.07
	 	No Delay of Rights by Meeting	  	 	46	 
		
	 ARTICLE 10 SUPPLEMENTAL INDENTURES
	  	 	47	 
			
	 Section 10.01
	 	Supplemental Indentures Without Consent of Holders	  	 	47	 
	 Section 10.02
	 	Supplemental Indentures with Consent of Holders	  	 	48	 
	 Section 10.03
	 	Effect of Supplemental Indentures	  	 	49	 
	 Section 10.04
	 	Notation on Notes	  	 	49	 
	 Section 10.05
	 	Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee	  	 	49	 


  
 ii 














							
		
	 ARTICLE 11 CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE
	  	 	49	 
			
	 Section 11.01
	 	Company May Consolidate, Etc. on Certain Terms	  	 	49	 
	 Section 11.02
	 	Successor Corporation to Be Substituted	  	 	50	 
	 Section 11.03
	 	Opinion of Counsel to Be Given to Trustee	  	 	50	 
		
	 ARTICLE 12 IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS
	  	 	51	 
			
	 Section 12.01
	 	Indenture and Notes Solely Corporate Obligations	  	 	51	 
		
	 ARTICLE 13 [INTENTIONALLY OMITTED]
	  	 	51	 
		
	 ARTICLE 14 CONVERSION OF NOTES
	  	 	51	 
			
	 Section 14.01
	 	Conversion Privilege	  	 	51	 
	 Section 14.02
	 	Conversion Procedure; Settlement Upon Conversion	  	 	51	 
	 Section 14.03
	 	Company’s Mandatory Conversion Option	  	 	54	 
	 Section 14.04
	 	Adjustment of Conversion Rate	  	 	55	 
	 Section 14.05
	 	Adjustments of Prices	  	 	62	 
	 Section 14.06
	 	Shares to Be Fully Paid	  	 	63	 
	 Section 14.07
	 	Effect of Recapitalizations, Reclassifications and Changes of the Common Stock	  	 	63	 
	 Section 14.08
	 	Certain Covenants	  	 	64	 
	 Section 14.09
	 	Responsibility of Trustee	  	 	65	 
	 Section 14.10
	 	Notice to Holders Prior to Certain Actions	  	 	65	 
	 Section 14.11
	 	Stockholder Rights Plans	  	 	66	 
	 Section 14.12
	 	Exchange in Lieu of Conversion	  	 	66	 
	 Section 14.13
	 	Limits Upon Issuance of Shares of Common Stock Upon Conversion	  	 	66	 
		
	 ARTICLE 15 REPURCHASE OF NOTES AT OPTION OF HOLDERS
	  	 	68	 
			
	 Section 15.01
	 	[Intentionally Omitted]	  	 	68	 
	 Section 15.02
	 	Repurchase at Option of Holders Upon a Fundamental Change	  	 	68	 
	 Section 15.03
	 	Withdrawal of Fundamental Change Repurchase Notice	  	 	70	 
	 Section 15.04
	 	Deposit of Fundamental Change Repurchase Price	  	 	71	 
	 Section 15.05
	 	Covenant to Comply with Applicable Laws Upon Repurchase of Notes	  	 	72	 
		
	 ARTICLE 16 NO REDEMPTION
	  	 	72	 
			
	 Section 16.01
	 	No Redemption	  	 	72	 
		
	 ARTICLE 17 MISCELLANEOUS PROVISIONS
	  	 	72	 
			
	 Section 17.01
	 	Provisions Binding on Company’s Successors	  	 	72	 
	 Section 17.02
	 	Official Acts by Successor Corporation	  	 	72	 
	 Section 17.03
	 	Addresses for Notices, Etc.	  	 	72	 


  
 iii 














							
	 Section 17.04
	 	Governing Law; Jurisdiction	  	 	73	 
	 Section 17.05
	 	Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee	  	 	73	 
	 Section 17.06
	 	Legal Holidays	  	 	74	 
	 Section 17.07
	 	No Security Interest Created	  	 	74	 
	 Section 17.08
	 	Benefits of Indenture	  	 	74	 
	 Section 17.09
	 	Table of Contents, Headings, Etc.	  	 	74	 
	 Section 17.10
	 	Authenticating Agent	  	 	74	 
	 Section 17.11
	 	Execution in Counterparts	  	 	75	 
	 Section 17.12
	 	Severability	  	 	75	 
	 Section 17.13
	 	Waiver of Jury Trial	  	 	75	 
	 Section 17.14
	 	Force Majeure	  	 	76	 
	 Section 17.15
	 	Calculations	  	 	76	 
	 Section 17.16
	 	USA PATRIOT Act	  	 	76	 
	 Section 17.17
	 	Tax Withholding	  	 	76	 

 EXHIBIT 
  

					
	Exhibit A	  	 Form of Note
	  	A-1

  

  
 iv 













 INDENTURE dated as of
[                ], 2021 between [LIGHTNING EMOTORS, INC.], a Delaware corporation, as issuer (the “Company,” as more fully set forth in
Section 1.01) and WILMINGTON TRUST, NATIONAL ASSOCIATION, a national banking association, as trustee (the “Trustee,” as more fully set forth in Section 1.01). 

W I T N E S S E T H: 
 WHEREAS,
for its lawful corporate purposes, the Company has duly authorized the issuance of its 7.50% Convertible Senior Notes due 2024 (the “Notes”), initially in an aggregate principal amount not to exceed $100,000,000, and in order to
provide the terms and conditions upon which the Notes are to be authenticated, issued and delivered, the Company has duly authorized the execution and delivery of this Indenture; and 

WHEREAS, the Form of Note, the certificate of authentication to be borne by each Note, the Form of Notice of Conversion, the Form of
Fundamental Change Repurchase Notice and the Form of Assignment and Transfer to be borne by the Notes are to be substantially in the forms hereinafter provided; and 

WHEREAS, all acts and things necessary to make the Notes, when executed by the Company and authenticated and delivered by the Trustee or a
duly authorized authenticating agent, as provided in this Indenture, the valid, binding and legal obligations of the Company, and this Indenture the valid, binding and legal agreement of the Company and the Trustee, have been done and performed, and
the execution of this Indenture and the issuance hereunder of the Notes have in all respects been duly authorized. 
 NOW, THEREFORE, THIS
INDENTURE WITNESSETH: 
 That in order to declare the terms and conditions upon which the Notes are, and are to be, authenticated, issued
and delivered, and in consideration of the premises and of the purchase and acceptance of the Notes by the Holders thereof, the Company covenants and agrees with the Trustee for the equal and proportionate benefit of the respective Holders from time
to time of the Notes (except as otherwise provided below), as follows: 
 ARTICLE 1 

DEFINITIONS 
 Section 1.01
Definitions. The terms defined in this Section 1.01 (except as herein otherwise expressly provided or unless the context otherwise requires) for all purposes of this Indenture and of any indenture supplemental hereto shall have the
respective meanings specified in this Section 1.01. The words “herein,” “hereof,” “hereunder” and words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other
subdivision. The terms defined in this Article include the plural as well as the singular. 
 “1934 Act” means the
Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder. 

“30-Day ADTV” means, as of any date and with respect to any shares
of Common Stock, the arithmetic average of the products, for each Scheduled Trading Day in the 30 Scheduled Trading Day period ending on, and including, the Scheduled Trading Day immediately preceding such date, of (i) the daily trading volume
in such shares of Common Stock on the applicable exchange for such Scheduled Trading Day and (ii) the volume weighted average sale price per share of Common Stock for such Scheduled Trading Day; provided that in the case of calculating
the amount in this clause (ii) with respect 












 
to any shares of Common Stock, in respect of any Scheduled Trading Day occurring on or subsequent to the Ex-Dividend Date for such dividend or
distribution, such amount shall be increased by an amount of cash in U.S. dollars per share of Common Stock distributed, or to be distributed, in such dividend or distribution, net of any applicable withholding taxes, as determined by the Conversion
Agent, in which case such amount shall be reduced to the amount that would then be in effect if such dividend or distribution had not been declared. 

“Additional Interest” means all amounts, if any, payable pursuant to Section 6.03, as applicable. 

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under
direct or indirect common control with such specified Person. For the purposes of this definition, “control,” when used with respect to any specified Person means the power to direct or cause the direction of the management and policies of
such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. Notwithstanding anything
to the contrary herein, the determination of whether one Person is an “Affiliate” of another Person for purposes of this Indenture shall be made based on the facts at the time such determination is made or required to be made, as
the case may be, hereunder. 
 “Applicable Procedures” means, with respect to a Depositary, as to any matter at any time,
the policies and procedures of such Depositary, if any, that are applicable to such matter at such time. 
 “Attribution
Parties” means, collectively, the following Persons and entities: (i) any investment vehicle, including, any funds, feeder funds or managed accounts, currently, or from time to time after the issue date of the Notes, directly or
indirectly managed or advised by a Holder’s investment manager or any of its Affiliates or principals, (ii) any direct or indirect Affiliates of such Holder or any of the foregoing, (iii) any Person acting or who could be deemed to be
acting as a Group together with such Holder or any of the foregoing and (iv) any other Persons whose beneficial ownership of the Company’s Common Stock would or could be aggregated with such Holder’s and the other Attribution Parties
for purposes of Section 13(d) of the 1934 Act. For clarity, the purpose of the foregoing is to subject collectively such Holder and all other Attribution Parties to the Maximum Percentage. 

“Board of Directors” means the board of directors of the Company or a committee of such board duly authorized to act for it
hereunder. 
 “Board Resolution” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the
Company to have been duly adopted by the Board of Directors, and to be in full force and effect on the date of such certification, and delivered to the Trustee. 

“Business Day” means any day other than Saturday, Sunday or other day on which commercial banks in The City of New York are
authorized or required by law to remain closed; provided, however, for clarification, commercial banks shall not be deemed to be authorized or required by law to remain closed due to “stay at home”, “shelter-in-place”, “non-essential employee” or any other similar orders or restrictions or the closure of any
physical branch locations at the direction of any governmental authority so long as the electronic funds transfer systems (including for wire transfers) of commercial banks in The City of New York generally are open for use by customers on such day.

 “Business Combination” means the business combination involving GigCapital3, Inc. and Lightning Systems, Inc., pursuant
to that certain Business Combination Agreement, dated as of December 10, 2020, by and among the GigCapital3, Inc., Lightning Systems, Inc. and Project Power Merger Sub, Inc. 

  
 2 













 “Capital Lease Obligations” shall mean, at the time any determination
thereof is to be made, the amount of the liability in respect of a capital lease that would at such time be required to be capitalized and reflected as a liability on a balance sheet (excluding the footnotes thereto) prepared in accordance with
GAAP. 
 “Capital Stock” means, for any entity, any and all shares, interests, rights to purchase, warrants, options,
participations or other equivalents of or interests in (however designated) stock issued by that entity; provided that debt securities that are convertible into or exchangeable for Capital Stock shall not constitute Capital Stock prior to
their conversion or exchange, as the case may be. 
 “Clause A Distribution” shall have the meaning specified in
Section 14.04(c). 
 “Clause B Distribution” shall have the meaning specified in Section 14.04(c). 

“Clause C Distribution” shall have the meaning specified in Section 14.04(c). 

“close of business” means 5:00 p.m. (New York City time). 

“Commission” means the U.S. Securities and Exchange Commission. 

“Common Equity” of any Person means Capital Stock of such Person that is generally entitled (a) to vote in the election
of directors of such Person or (b) if such Person is not a corporation, to vote or otherwise participate in the selection of the governing body, partners, managers or others that will control the management or policies of such Person. 

“Common Stock” means the Common Stock of the Company, par value $0.0001 per share, at the date of this Indenture, subject to
Section 14.07. 
 “Company” shall have the meaning specified in the first paragraph of this Indenture, and subject to
the provisions of Article 11, shall include its successors and assigns. 
 “Company Mandatory Conversion Condition”
means the conditions required for the Company to cause Notes to be converted pursuant to Section 14.03(a). 
 “Company
Order” means a written order of the Company, signed on behalf of the Company by an Officer. 
 “Conversion Agent”
shall have the meaning specified in Section 4.02. 
 “Conversion Date” shall have the meaning specified in
Section 14.02(c). 
 “Conversion Obligation” shall have the meaning specified in Section 14.01(a). 

“Conversion Price” means as of any time, $1,000, divided by the Conversion Rate as of such time. 

“Conversion Rate” shall have the meaning specified in Section 14.01(a). 

  
 3 













 “Corporate Trust Office” means the corporate trust office of the Trustee at
which at any time its corporate trust business shall be administered, which office at the date hereof is located at Wilmington Trust, National Association, Global Capital Markets, 50 South Sixth Street, Suite 1290, Minneapolis, Minnesota 55402,
Attention: [Lightning eMotors] Notes Administrator, or such other address as the Trustee may designate from time to time by notice to the Holders and the Company, or the principal corporate trust office of any successor trustee (or such other
address as such successor trustee may designate from time to time by notice to the Holders and the Company). 
 “Custodian”
means the Trustee, as custodian for The Depository Trust Company, with respect to the Global Notes, or any successor entity thereto. 

“Daily VWAP” means the per share volume-weighted average price as displayed under the heading “Bloomberg
VWAP” on Bloomberg page “[ZEV] <equity> AQR” (or its equivalent successor if such page is not available) in respect of the period from the scheduled open of trading until the scheduled close of trading of the primary
trading session on such Trading Day (or if such volume-weighted average price is unavailable, the market value of one share of the Common Stock on such Trading Day determined, using a volume-weighted average method, by a nationally recognized
independent investment banking firm retained for this purpose by the Company). The “Daily VWAP” shall be determined without regard to after-hours trading or any other trading outside of the regular trading session trading hours.

 “Default” means any event that is, or after notice or passage of time, or both, would be, an Event of Default. 

“Defaulted Amounts” means any amounts on any Note (including, without limitation, the Fundamental Change Repurchase Price,
principal and interest) that are payable but are not punctually paid or duly provided for. 
 “Depositary” means, with
respect to each Global Note, the Person specified in Section 2.05(b) as the Depositary with respect to such Notes, until a successor shall have been appointed and become such pursuant to the applicable provisions of this Indenture, and
thereafter, “Depositary” shall mean or include such successor. 
 “Distributed Property” shall have the
meaning specified in Section 14.04(c). 
 “Effective Date” means the first date on which shares of the Common Stock
trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as applicable. 

“Eligible Market” means The New York Stock Exchange, the NYSE American, the Nasdaq Global Select Market, the Nasdaq Global
Market, the Nasdaq Capital Market, the OTCQB or the OTCQX. 
 “Equity Conditions” means, with respect to an given date of
determination: (i) on each day during the period beginning thirty calendar days prior to such applicable date of determination and ending on and including such applicable date of determination either (x) one or more registration statements
filed with the Commission pursuant to the Subscription Agreement shall be effective and the prospectus contained therein shall be available on such applicable date of determination (with, for the avoidance of doubt, any shares of Common Stock
previously sold pursuant to such prospectus deemed unavailable) for the resale of all shares of Common Stock to be issued in connection with the event requiring this determination, as applicable, in the event requiring this determination (without
regard to any limitations on conversion set forth herein)) (each, a “Required Minimum Securities Amount”) or (y) all shares of Common Stock issuable upon conversion of the applicable Notes shall be eligible for sale pursuant to
Rule 

  
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144 of the Securities Act of 1933, as amended, without the need for registration under any applicable federal or state securities laws (in each case, disregarding any limitation on conversion of
the Notes) and the Company is then current with its filings with the Commission; (ii) on each day during the period beginning thirty calendar days prior to the applicable date of determination and ending on and including the applicable date of
determination (the “Equity Conditions Measuring Period”), the Common Stock (including all shares of Common Stock issued or issuable upon conversion of the Notes and exercise of the Warrants) is listed or designated for quotation (as
applicable) on an Eligible Market and shall not have been suspended from trading on an Eligible Market (other than suspensions of not more than two (2) days and occurring prior to the applicable date of determination due to business
announcements by the Company) nor shall delisting or suspension by an Eligible Market have been threatened (with a reasonable prospect of delisting occurring after giving effect to all applicable notice, appeal, compliance and hearing periods) or
reasonably likely to occur or pending as evidenced by (A) a writing by such Eligible Market or (B) the Company falling below the minimum listing maintenance requirements of the Eligible Market on which the Common Stock is then listed or
designated for quotation, as applicable; (iii) during the Equity Conditions Measuring Period, the Company shall have delivered all shares of Common Stock issuable upon conversion of the Notes on a timely basis in accordance herewith;
(iv) any shares of Common Stock to be issued in connection with the event requiring determination (or issuable upon conversion of the portion of the Notes being redeemed in the event requiring this determination) may be issued in full without
violating Section 14.13 hereof; (v) any shares of Common Stock to be issued in connection with the event requiring determination (or issuable upon conversion of the portion of the Notes being redeemed in the event requiring this
determination (without regards to any limitations on conversion set forth herein)) may be issued in full without violating the rules or regulations of the Eligible Market on which the Common Stock is then listed or designated for quotation (as
applicable); (vi) on each day during the Equity Conditions Measuring Period, no public announcement of a pending, proposed or intended Fundamental Change (as defined in the Indenture) shall have occurred which has not been abandoned, terminated or
consummated; (vii) the Company shall have no knowledge of any fact that would reasonably be expected to cause (1) any registration statement required to be filed with the Commission pursuant to the Subscription Agreement to not be
effective or the prospectus contained therein to not be available for the resale of the applicable Required Minimum Securities Amount of all shares of Common Stock issuable upon conversion of the applicable Notes in accordance with the terms of the
Subscription Agreement or (2) any shares of Common Stock issuable upon conversion of the applicable Notes to not be eligible for sale pursuant to Rule 144 without the need for registration under any applicable federal or state securities laws
(in each case, disregarding any limitation on conversion of the Notes and the Company is then current with its filings with the Commission, (viii) none of the Holders shall be in possession of any material,
non-public information provided to any of them by the Company, any of its Subsidiaries or any of their respective affiliates, employees, officers, representatives, agents or the like; (ix) on each day
during the Equity Conditions Measuring Period, the Company otherwise shall have been in compliance with each, and shall not have breached any representation or warranty in any material respect (other than representations or warranties subject to
material adverse effect or materiality, which may not be breached in any respect) or any covenant or other term or condition of any Transaction Document, including, without limitation, the Company shall not have failed to timely make any payment
pursuant to any Transaction Document; (x) on each Trading Day during the Equity Conditions Measuring Period, there shall not have occurred any Volume Failure as of such applicable date of determination; (xi) on the applicable date of
determination all shares of Common Stock to be issued in connection with the event requiring this determination (or issuable upon conversion of the portion of this Note being redeemed in the event requiring this determination (without regards to any
limitations on conversion set forth herein)) may be issued in full from the authorized and available shares of Common Stock of the Company; (xii) on each day during the Equity Conditions Measuring Period, there shall not have occurred and there
shall not exist an Event of Default (as defined in the Indenture) or an event that with the passage of time or giving of notice would constitute an Event of Default; or (xiii) the shares of Common Stock issuable pursuant to the event requiring
the satisfaction of the Equity Conditions are duly authorized and listed and eligible for trading without restriction on an Eligible Market. 

  
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 “Equity Conditions Failure” means, with respect to any date of
determination, the Equity Conditions have not been satisfied (or waived in writing by the applicable Holder). 
 “Event of
Default” shall have the meaning specified in Section 6.01. 
 “Ex-Dividend
Date” means the first date on which shares of the Common Stock trade on the applicable exchange or in the applicable market, regular way, without the right to receive the issuance, dividend or distribution in question, from the Company or,
if applicable, from the seller of Common Stock on such exchange or market (in the form of due bills or otherwise) as determined by such exchange or market. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

 “Exchange Election” shall have the meaning specified in Section 14.12. 

“Expiration Date” shall have the meaning specified in Section 14.04(e). 

“Form of Assignment and Transfer” means the “Form of Assignment and Transfer” attached as Attachment 3 to
the Form of Note attached hereto as Exhibit A. 
 “Form of Fundamental Change Repurchase Notice” means the
“Form of Fundamental Change Repurchase Notice” attached as Attachment 2 to the Form of Note attached hereto as Exhibit A. 

“Form of Note” means the “Form of Note” attached hereto as Exhibit A. 

“Form of Notice of Conversion” means the “Form of Notice of Conversion” attached as Attachment 1 to the Form
of Note attached hereto as Exhibit A. 
 “Fundamental Change” shall be deemed to have occurred at the time after the
Notes are originally issued if any of the following occurs prior to the Maturity Date: 
 (a) a “person” or “group”
within the meaning of Section 13(d) of the Exchange Act, other than the Company, its Wholly Owned Subsidiaries, files a Schedule TO or any schedule, form or report under the Exchange Act disclosing that such person or group has become the
direct or indirect “beneficial owner,” as defined in Rule 13d-3 under the Exchange Act, of the Common Stock representing more than 50% of the voting power of the Common Stock; 

(b) the consummation of (A) any recapitalization, reclassification or change of the Common Stock (other than changes resulting from a
subdivision or combination or changes solely in par value) as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or assets; (B) any share exchange, consolidation or merger of
the Company pursuant to which the Common Stock will be converted into cash, securities or other property or assets; or (C) any sale, lease or other transfer in one transaction or a series of transactions of all or substantially all of the
consolidated assets of the Company and its Subsidiaries, taken as a whole, to any Person other than one of the Company’s direct or indirect Wholly Owned Subsidiaries; provided, however, that neither (x) a transaction
described in clause (A) or (B) in which the holders of all classes of the Company’s Common Equity immediately prior to such transaction own, directly or indirectly, more than 50% of all classes of


  
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Common Equity of the continuing or surviving corporation or transferee or the parent thereof immediately after such transaction in substantially the same proportions (relative to each other) as
such ownership immediately prior to such transaction nor (y) any merger of the Company solely for the purpose of changing its jurisdiction or incorporation that results in a reclassification, conversion or exchange of outstanding shares of
Common Stock solely into shares of Common Stock of the surviving entity shall be a Fundamental Change pursuant to this clause (b); 
 (c) the
Company’s stockholders approve any plan or proposal for the liquidation or dissolution of the Company; or 
 (d) the Common Stock (or
other Common Equity underlying the Notes) ceases to be listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors); 

provided, however, that a transaction or transactions described in clauses (a) or (b) above shall not constitute a Fundamental Change, if
at least 90% of the consideration received or to be received by the common stockholders of the Company, excluding cash payments for fractional shares and cash payments made in respect of dissenters’ appraisal rights, in connection with such
transaction or transactions consists of shares of common stock that are listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors) or will be so listed
or quoted when issued or exchanged in connection with such transaction or transactions and as a result of such transaction or transactions such consideration becomes Reference Property for the Notes, excluding cash payments for fractional shares and
cash payments made in respect of dissenters’ appraisal rights (subject to the provisions of Section 14.02(a)). Any event, transaction or series of related transactions that constitute a Fundamental Change under both clause (a) and
clause (b) above (determined without regard to the proviso in clause (b) above) shall be deemed to be a Fundamental Change solely under clause (b) above (and, for the avoidance of doubt, shall be subject to the proviso in clause
(b) above). If any transaction in which the Common Stock is replaced by the equity securities of another entity occurs. references to the Company in this definition shall instead be references to such other entity. 

“Fundamental Change Company Notice” shall have the meaning specified in Section 15.02(c). 

“Fundamental Change Repurchase Date” shall have the meaning specified in Section 15.02(a). 

“Fundamental Change Repurchase Notice” shall have the meaning specified in Section 15.02(b)(i). 

“Fundamental Change Repurchase Price” shall have the meaning specified in Section 15.02(a). 

“Global Note” shall have the meaning specified in Section 2.05(b). 

“Group” means a “group” as that term is used in Section 13(d) of the 1934 Act and as defined in Rule 13d-5 thereunder. 
 “Holder”, as applied to any Note, or other similar terms, means any
Person in whose name at the time a particular Note is registered on the Note Register (and in the case of a Global Note and solely with respect to Section 6.12 and Section 14.13, the indirect holder of Notes held through its participant).


  
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 “Indebtedness” means, without duplication, (a) all obligations of the
Company and its Subsidiaries for borrowed money (including any securitization facility) or with respect to deposits or advances of any kind, (b) all obligations of the Company and its Subsidiaries evidenced by bonds, debentures, notes or
similar instruments, (c) all obligations of such the Company and its Subsidiaries upon which interest charges are customarily paid, (d) all Capital Lease Obligations of the Company and its Subsidiaries, (e) all obligations of the
Company and its Subsidiaries as an account party in respect of letters of credit and (f) all obligations of the Company and its Subsidiaries in respect of bankers’ acceptances. 

“Indenture” means this instrument as originally executed or, if amended or supplemented as herein provided, as so amended or
supplemented. 
 “Interest Make-Whole Amount” means, with respect to the conversion of any Note, in an amount denominated
in U.S. dollars, the sum of all regularly scheduled interest payments, if any, due on such Note on each Interest Payment Date occurring after the Conversion Date for such conversion and on or before the Maturity Date; provided,
however, that (A) for these purposes, the amount of interest due on the Interest Payment Date immediately after such Conversion Date will be deemed to be the following amount: (x) if such Conversion Date is prior to
[                ], 2023, an amount equal to twelve months of interest and (y) if such Conversion Date is on or after
[                ], 2023, any accrued and unpaid interest, if any, at such Conversion Date, plus any remaining amounts that would be owed to, but excluding, the
Maturity Date in respect of such Notes, including all regularly scheduled interest payments; and (B) if such Conversion Date occurs after the Company has sent a Mandatory Conversion Notice, then the Interest Make-Whole Amount for such
conversion shall be the sum of all regularly scheduled interest payments, if any, due on such Note on each Interest Payment Date occurring after the Conversion Date for such conversion to, but excluding, the Maturity Date. 

“Interest Payment Date” means each
[                ] and [                ] of each year, beginning on
[                ], 2021. 
 “Last Reported Sale
Price” of the Common Stock (or other security for which a closing sale price must be determined) on any date means the closing sale price per share (or if no closing sale price is reported, the average of the bid and ask prices or, if more
than one in either case, the average of the average bid and the average ask prices) on that date as reported in composite transactions for the principal U.S. national or regional securities exchange on which the Common Stock (or such other security)
is traded. If the Common Stock (or such other security) is not listed for trading on a U.S. national or regional securities exchange on the relevant date, the “Last Reported Sale Price” shall be the last quoted bid price per share
for the Common Stock (or such other security) in the over-the-counter market on the relevant date as reported by OTC Markets Group Inc. or a similar organization. If the
Common Stock (or such other security) is not so quoted, the “Last Reported Sale Price” shall be the average of the mid-point of the last bid and ask prices per share for the Common Stock (or
such other security) on the relevant date from each of at least three nationally recognized independent investment banking firms selected by the Company for this purpose. The “Last Reported Sale Price” shall be determined without
regard to after-hours trading or any other trading outside of regular trading session hours. 
 “Mandatory Conversion”
means a conversion pursuant to Section 14.03(a). 
 “Mandatory Conversion Date” means the Conversion Date for a
Mandatory Conversion, as provided in Section 14.03(c). 

  
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 “Market Disruption Event” means, for the purposes of determining amounts
due upon conversion (a) a failure by the primary U.S. national or regional securities exchange or market on which the Common Stock is listed or admitted for trading to open for trading during its regular trading session or (b) the
occurrence or existence prior to 1:00 p.m., New York City time, on any Scheduled Trading Day for the Common Stock for more than one half-hour period in the aggregate during regular trading hours of any suspension or limitation imposed on trading (by
reason of movements in price exceeding limits permitted by the relevant stock exchange or otherwise) in the Common Stock or in any options contracts or futures contracts relating to the Common Stock. 

“Maturity Date” means [                ],
2024. 
 “Note” or “Notes” shall have the meaning specified in the first paragraph of the recitals of this
Indenture. 
 “Note Register” shall have the meaning specified in Section 2.05(a). 

“Note Registrar” shall have the meaning specified in Section 2.05(a). 

“Notice of Conversion” shall have the meaning specified in Section 14.02(b). 

“Officer” means, with respect to the Company, the President, the Chief Executive Officer, the Chief Financial Officer, the
Treasurer, the Secretary, any assistant Treasurer, any assistant Secretary, General Counsel, any Assistant General Counsel, any Executive or Senior Vice President or any Vice President (whether or not designated by a number or numbers or word or
words added before or after the title “Vice President”). 
 “Officer’s Certificate,” when used with
respect to the Company, means a certificate that is delivered to the Trustee and that is signed on behalf of the Company by an Officer of the Company that meets the requirements of Section 17.05. 

“open of business” means 9:00 a.m. (New York City time). 

“Opinion of Counsel” means an opinion in writing signed by legal counsel, who may be an employee of or counsel to the
Company, that is delivered to the Trustee. 
 “outstanding,” when used with reference to Notes, shall, subject to the
provisions of Section 8.04, mean, as of any particular time, all Notes authenticated and delivered by the Trustee under this Indenture, except: 

(a) Notes theretofore canceled by the Trustee or accepted by the Trustee for cancellation; 

(b) Notes, or portions thereof, that have become due and payable and in respect of which monies in the necessary amount shall have been
deposited in trust with the Trustee or with any Paying Agent (other than the Company) or shall have been set aside and segregated in trust by the Company (if the Company shall act as its own Paying Agent); 

(c) Notes that have been paid pursuant to Section 2.06 or Notes in lieu of which, or in substitution for which, other Notes shall have
been authenticated and delivered pursuant to the terms of Section 2.06 unless proof satisfactory to the Trustee is presented that any such Notes are held by protected purchasers in due course; 

  
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 (d) Notes surrendered for purchase in accordance with Article 15 for which Paying Agent
holds money sufficient to pay the Fundamental Change Repurchase Price, in accordance with Section 15.04(b); 
 (e) Notes converted
pursuant to Article 14 and required to be cancelled pursuant to Section 2.08; and 
 (f) Notes repurchased by the Company pursuant
to the last sentence of Section 2.10 after the Company surrenders them to the Trustee for cancellation in accordance with Section 2.08. 

“Paying Agent” shall have the meaning specified in Section 4.02. 

“Permitted Indebtedness” means Indebtedness consisting of (i) Indebtedness in respect of Capital Lease Obligations in an
aggregate amount not to exceed $30,000,000, (ii) Indebtedness under that certain Loan and Security Agreement, dated as of October 10, 2019, by and between Cupola Infrastructure Income Fund, L.L.L.P and Lightning Hybrids, LLC, and (iii) any
other Indebtedness, in an amount for the Permitted Indebtedness under clauses (ii) and (iii) not to exceed $15,000,000 in the aggregate; provided that, such Permitted Indebtedness under clauses (ii) and (iii) above shall be reduced
to an amount not to exceed $5,000,000 within thirty (30) Business Days of the issue date of the Notes. 
 “Person”
means an individual, a corporation, a limited liability company, an association, a partnership, a joint venture, a joint stock company, a trust, an unincorporated organization or a government or an agency or a political subdivision thereof. 

“Physical Notes” means permanent certificated Notes in registered form issued in minimum denominations of $1,000 principal
amount and integral multiples in excess thereof. 
 “Physical Settlement” shall have the meaning specified in
Section 14.02(a). 
 “Physical Settlement Method” means, with respect to any conversion of Notes, the Physical
Settlement. 
 “Predecessor Note” of any particular Note means every previous Note evidencing all or a portion of the same
debt as that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 2.06 in lieu of or in exchange for a mutilated, lost, destroyed or stolen Note shall be deemed to
evidence the same debt as the mutilated, lost, destroyed or stolen Note that it replaces. 
 “Record Date” means, with
respect to any dividend, distribution or other transaction or event in which the holders of Common Stock (or other applicable security) have the right to receive any cash, securities or other property or in which the Common Stock (or such other
security) is exchanged for or converted into any combination of cash, securities or other property, the date fixed for determination of holders of the Common Stock (or such other security) entitled to receive such cash, securities or other property
(whether such date is fixed by the Board of Directors, by statute, by contract or otherwise). 
 “Reference Property” shall
have the meaning specified in Section 14.07(a). 
 “Regular Record Date,” with respect to any Interest Payment Date,
means the May 1 or November 1 (whether or not such day is a Business Day) immediately preceding the applicable May 15 or November 15 Interest Payment Date, respectively. 

  
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 “Redemption” means the repurchase of any Note by the Company pursuant to
4.10. 
 “Responsible Officer” means, when used with respect to the Trustee, any officer within the corporate trust
department of the Trustee, including any vice president, assistant vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the
Persons who at the time shall be such officers, respectively, or to whom any corporate trust matter relating to this Indenture is referred because of such person’s knowledge of and familiarity with the particular subject and, in each case, who
shall have direct responsibility for the administration of this Indenture. 
 “Restricted Securities” shall have the
meaning specified in Section 2.05(c). 
 “Restrictive Legend” shall have the meaning specified in
Section 2.05(d). 
 “Rule 144” means Rule 144 as promulgated under the Securities Act. 

“Rule 144A” means Rule 144A as promulgated under the Securities Act. 

“Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the principal U.S. national or regional
securities exchange or market on which the Common Stock is listed or admitted for trading. If the Common Stock is not so listed or admitted for trading, “Scheduled Trading Day” means a Business Day. 

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 

“Settlement Amount” has the meaning specified in Section 14.02(a)(iv). 

“Share Exchange Event” has the meaning specified in Section 14.07(a). 

“Significant Subsidiary” means a Subsidiary of the Company that meets the definition of “significant subsidiary” in
Article 1, Rule 1-02 of Regulation S-X under the Exchange Act as in effect on the date of this Indenture; provided that, in the case of a Subsidiary of the Company
that meets the criteria of clause (3) of the definition thereof but not clause (1) or (2) thereof, such Subsidiary shall not be deemed to be a Significant Subsidiary unless the Subsidiary’s income (or loss) from continuing operations
before income taxes, extraordinary items and cumulative effect of a change in accounting principles exclusive of amounts attributable to any non-controlling interests for the last completed fiscal year prior
to the date of such determination exceeds $20,000,000. 
 “Spin-Off” shall have the
meaning specified in Section 14.04(c). 
 “Subsidiary” means, with respect to any Person, any corporation,
association, partnership or other business entity of which more than 50% of the total voting power of shares of Capital Stock or other interests (including partnership interests) entitled (without regard to the occurrence of any contingency) to vote
in the election of directors, managers, general partners or trustees thereof is at the time owned or controlled, directly or indirectly, by (i) such Person; (ii) such Person and one or more Subsidiaries of such Person; or (iii) one or
more Subsidiaries of such Person. 
 “Successor Company” shall have the meaning specified in Section 11.01(a). 

  
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 “Trading Day” means a day on which (i) trading in the Common Stock (or
other security for which a closing sale price must be determined) generally occurs on the New York Stock Exchange or, if the Common Stock (or such other security) is not then listed on the New York Stock Exchange, on the principal other U.S.
national or regional securities exchange on which the Common Stock (or such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional securities exchange, on the principal other
market on which the Common Stock (or such other security) is then traded and (ii) a Last Reported Sale Price for the Common Stock (or closing sale price for such other security) is available on such securities exchange or market; provided
that if the Common Stock (or such other security) is not so listed or traded, “Trading Day” means a Business Day; and provided, further, that for purposes of determining amounts due upon conversion only,
“Trading Day” means a day on which (x) there is no Market Disruption Event and (y) trading in the Common Stock generally occurs on the New York Stock Exchange or, if the Common Stock is not then listed on the New York
Stock Exchange, on the principal other U.S. national or regional securities exchange on which the Common Stock is then listed or, if the Common Stock is not then listed on a U.S. national or regional securities exchange, on the principal other
market on which the Common Stock is then listed or admitted for trading, except that if the Common Stock is not so listed or admitted for trading, “Trading Day” means a Business Day. 

“transfer” shall have the meaning specified in Section 2.05(c). 

“Trigger Event” shall have the meaning specified in Section 14.04(c). 

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended, as it was in force at the date of execution of this
Indenture; provided, however, that in the event the Trust Indenture Act of 1939 is amended after the date hereof, the term “Trust Indenture Act” shall mean, to the extent required by such amendment, the Trust Indenture
Act of 1939, as so amended. 
 “Trustee” means the Person named as the “Trustee” in the first paragraph of
this Indenture until a successor trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee hereunder. 

“unit of Reference Property” shall have the meaning specified in Section 14.07(a). 

“Valuation Period” shall have the meaning specified in Section 14.04(c). 

“Volume Failure” means, with respect to a particular date of determination, the aggregate daily dollar trading volume (as
reported on Bloomberg) of the Common Stock on the Principal Market on any Trading Day during the twenty (20) Trading Day period ending on the Trading Day immediately preceding such date of determination (such period, the “Volume Failure
Measuring Period”), is less than $2,000,000 (as adjusted for any stock splits, stock dividends, stock combinations, recapitalizations or other similar transactions occurring after the Subscription Date). All such determinations to be
appropriately adjusted for any stock splits, stock dividends, stock combinations, recapitalizations or other similar transactions during such Volume Failure Measuring Period. 

“Wholly Owned Subsidiary” means, with respect to any Person, any direct or indirect Subsidiary of such Person, except that,
solely for purposes of this definition, the reference to “more than 50%” in the definition of “Subsidiary” shall be deemed replaced by a reference to “100%”. 

Section 1.02 References to Interest. Unless the context otherwise requires, any reference to interest on, or in respect of, any
Note in this Indenture shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to Section 6.03. Unless the context otherwise requires, any express mention of Additional
Interest in any provision hereof shall not be construed as excluding Additional Interest in those provisions hereof where such express mention is not made. 

  
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 ARTICLE 2 

ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES 

Section 2.01 Designation and Amount. The Notes shall be designated as the “7.50% Convertible Senior Notes due
2024.” The aggregate principal amount of Notes that may be authenticated and delivered under this Indenture is initially limited to $100,000,000, subject to Section 2.10 and except for Notes authenticated and delivered upon registration or
transfer of, or in exchange for, or in lieu of other Notes to the extent expressly permitted hereunder. 
 Section 2.02 Form of
Notes. The Notes and the Trustee’s certificate of authentication to be borne by such Notes shall be substantially in the respective forms set forth in Exhibit A, the terms and provisions of which shall constitute, and are hereby
expressly incorporated in and made a part of this Indenture. To the extent applicable, the Company and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. In the case
of any conflict between this Indenture and a Note, the provisions of this Indenture shall control and govern to the extent of such conflict. 

Any Global Note may be endorsed with or have incorporated in the text thereof such legends or recitals or changes not inconsistent with the
provisions of this Indenture as may be required by the Custodian or the Depositary, or as may be required to comply with any applicable law or any regulation thereunder or with the rules and regulations of any securities exchange or automated
quotation system upon which the Notes may be listed or traded or designated for issuance or to conform with any usage with respect thereto, or to indicate any special limitations or restrictions to which any particular Notes are subject. 

Any of the Notes may have such letters, numbers or other marks of identification and such notations, legends or endorsements as the Officer
executing the same may approve (execution thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with any law or with any rule or regulation made
pursuant thereto or with any rule or regulation of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, or to conform to usage or to indicate any special limitations or restrictions to
which any particular Notes are subject. 
 Each Global Note shall represent such principal amount of the outstanding Notes as shall be
specified therein and shall provide that it shall represent the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time
be increased or reduced to reflect redemptions, repurchases, cancellations, conversions, transfers or exchanges permitted hereby. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the amount of outstanding Notes
represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in such manner and upon instructions given by the Holder of such Notes in accordance with this Indenture. Payment of principal (including the
Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the Holder of such Note on the date of payment, unless a record date or other means of determining Holders eligible to receive
payment is provided for herein. 

  
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 Section 2.03 Date and Denomination of Notes; Payments of Interest and Defaulted
Amounts. (a) The Notes shall be issuable in registered form without coupons in minimum denominations of $1,000 principal amount and integral multiples of $1,000 in excess thereof. Each Note shall be dated the date of its
authentication and shall bear interest from the date specified on the face of such Note. Accrued interest on the Notes shall be computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months, on the basis of the number of days actually elapsed in a 30-day month. 

(b) The Person in whose name any Note (or its Predecessor Note) is registered on the Note Register at the close of business on any Regular
Record Date with respect to any Interest Payment Date shall be entitled to receive the interest payable on such Interest Payment Date. The principal amount of any Note (x) in the case of any Physical Note, shall be payable at the office or
agency of the Company maintained by the Company for such purposes in the United States, which shall initially be the Corporate Trust Office and in the case of any Global Note, shall be payable by wire transfer of immediately available funds to the
account of the Depositary or its nominee. The Company shall pay, or cause the Paying Agent to pay, interest (i) on any Physical Notes (A) to Holders holding Physical Notes having an aggregate principal amount of $5,000,000 or less, by
check mailed to the Holders of these Notes at their address as it appears in the Note Register and (B) to Holders holding Physical Notes having an aggregate principal amount of more than $5,000,000, either by check mailed to each Holder or,
upon application by such a Holder to the Note Registrar not later than the relevant Regular Record Date, by wire transfer in immediately available funds to that Holder’s account within the United States, which application shall remain in effect
until the Holder notifies, in writing, the Note Registrar to the contrary or (ii) on any Global Note by wire transfer of immediately available funds to the account of the Depositary or its nominee. 

(c) Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant payment date but shall accrue interest per annum at
the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, such relevant payment date, and such Defaulted Amounts together with such interest thereon shall be paid by the Company, at its election in
each case, as provided in clause (i) or (ii) below: 
 (i) The Company may elect to make payment of any Defaulted
Amounts to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on a special record date for the payment of such Defaulted Amounts, which shall be fixed in the following manner. The
Company shall notify the Trustee in writing of the amount of the Defaulted Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not less than 25 days after the receipt by the Trustee of such notice, unless
the Trustee shall consent to an earlier date), and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or shall make arrangements satisfactory
to the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Amounts as in this clause provided. Thereupon the Company shall
fix a special record date for the payment of such Defaulted Amounts which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of
the proposed payment. The Company shall promptly notify the Trustee in writing of such special record date and the Trustee, in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Amounts and the
special record date therefor to be delivered to each Holder not less than 10 days prior to such special record date. Notice of the proposed payment of such Defaulted Amounts and the special record date therefor having been so delivered, such
Defaulted Amounts shall be paid to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on such special record date and shall no longer be payable pursuant to the following clause
(ii) of this Section 2.03(c). The Trustee shall have no responsibility for the calculation of the Defaulted Amounts. 

  
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 (ii) The Company may make payment of any Defaulted Amounts in any other
lawful manner not inconsistent with the requirements of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, and upon such notice as may be required by such exchange or automated
quotation system, if, after written notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee. 

Section 2.04 Execution, Authentication and Delivery of Notes. The Notes shall be signed in the name and on behalf of the Company
by the manual, facsimile or other electronic signature of one of its Officers. 
 At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Notes executed by the Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Notes, and the Trustee in accordance with such Company
Order shall authenticate and deliver such Notes, without any further action by the Company hereunder. 
 Only such Notes as shall bear
thereon a certificate of authentication substantially in the form set forth on the Form of Note attached as Exhibit A hereto, executed manually by an authorized signatory of the Trustee (or an authenticating agent appointed by the Trustee as
provided by Section 17.10), shall be entitled to the benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the Trustee (or such an authenticating agent) upon any Note executed by the Company shall be
conclusive evidence that the Note so authenticated has been duly authenticated and delivered hereunder and that the Holder is entitled to the benefits of this Indenture. 

In case any Officer of the Company who shall have signed any of the Notes shall cease to be such Officer before the Notes so signed shall have
been authenticated and delivered by the Trustee, or disposed of by the Company, such Notes nevertheless may be authenticated and delivered or disposed of as though the person who signed such Notes had not ceased to be such Officer of the Company;
and any Note may be signed on behalf of the Company by such persons as, at the actual date of the execution of such Note, shall be the Officers of the Company, although at the date of the execution of this Indenture any such person was not such an
Officer. 
 Section 2.05 Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary.
(a) The Company shall cause to be kept at the Corporate Trust Office a register (the register maintained in such office or in any other office or agency of the Company designated pursuant to Section 4.02, the “Note
Register”) in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration of Notes and of transfers of Notes. Such register shall be in written form or in any form capable of being
converted into written form within a reasonable period of time. The Trustee is hereby initially appointed the “Note Registrar” for the purpose of registering Notes and transfers of Notes as herein provided. The Company may appoint
one or more co-Note Registrars in accordance with Section 4.02. 
 Upon surrender for
registration of transfer of any Note to the Note Registrar or any co-Note Registrar, and satisfaction of the requirements for such transfer set forth in this Section 2.05, the Company shall execute, and
the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of any authorized denominations and of a like aggregate principal amount and bearing such legends as may be required by this
Indenture. 

  
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 Notes may be exchanged for other Notes of any authorized denominations and of a like
aggregate principal amount, upon surrender of the Notes to be exchanged at any such office or agency maintained by the Company pursuant to Section 4.02. Whenever any Notes are so surrendered for exchange, the Company shall execute, and the
Trustee shall authenticate and deliver, the Notes that the Holder making the exchange is entitled to receive, bearing registration numbers not contemporaneously outstanding. 

All Notes presented or surrendered for registration of transfer or for exchange, repurchase or conversion shall (if so required by the
Company, the Trustee, the Note Registrar or any co-Note Registrar) be duly endorsed, or be accompanied by a written instrument or instruments of transfer in form satisfactory to the Trustee or Note Registrar
and duly executed, by the Holder thereof or its attorney-in-fact duly authorized in writing. 

No service charge shall be imposed on a Holder by the Company, the Trustee, the Note Registrar, any
co-Note Registrar or the Paying Agent for any exchange or registration of transfer of Notes, but the Company may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or
transfer tax required in connection therewith as a result of the name of the Holder of new Notes issued upon such exchange or registration of transfer being different from the name of the Holder of the old Notes surrendered for exchange or
registration of transfer. 
 None of the Company, the Trustee, the Note Registrar or any co-Note
Registrar shall be required to exchange or register a transfer of (i) any Notes surrendered for conversion or, if a portion of any Note is surrendered for conversion, such portion thereof surrendered for conversion or (ii) any Notes, or a
portion of any Note, surrendered for repurchase (and not withdrawn) in accordance with Article 15. 
 All Notes issued upon any
registration of transfer or exchange of Notes in accordance with this Indenture shall be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture as the Notes surrendered upon such
registration of transfer or exchange. 
 (b) So long as the Notes are eligible for book-entry settlement with the Depositary, unless
otherwise required by law, subject to the fourth paragraph from the end of Section 2.05(c), all Notes shall be represented by one or more Notes in global form (each, a “Global Note”) registered in the name of the Depositary or
the nominee of the Depositary. The transfer and exchange of beneficial interests in a Global Note that does not involve the issuance of a Physical Note shall be effected through the Depositary (but not the Trustee or the Custodian) in accordance
with this Indenture (including the restrictions on transfer set forth herein) and the Applicable Procedures. 
 (c) Every Note that bears or
is required under this Section 2.05(c) to bear the legend set forth in this Section 2.05(c) (together with any Common Stock issued upon conversion of the Notes that is required to bear the legend set forth in Section 2.05(d),
collectively, the “Restricted Securities”) shall be subject to the restrictions on transfer set forth in this Section 2.05(c) (including the legend set forth below), unless such restrictions on transfer shall be eliminated or
otherwise waived by written consent of the Company, and the Holder of each such Restricted Security, by such Holder’s acceptance thereof, agrees to be bound by all such restrictions on transfer. As used in this Section 2.05(c) and
Section 2.05(c), the term “transfer” encompasses any sale, pledge, transfer or other disposition whatsoever of any Restricted Security. 

  
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 (d) Each Global Note shall bear a legend in substantially the following form (the
“Restrictive Legend”) (or any similar legend, not inconsistent with this Indenture, required by the Depositary for such Global Note): 

THIS SECURITY AND THE COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER:

 (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED INSTITUTIONAL BUYER”
(WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2) AGREES FOR THE BENEFIT OF [LIGHTNING EMOTORS, INC.] (THE “COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE
OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT
OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT: 
 (A)
TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 
 (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE
SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF SUCH TRANSFER, OR 
 (C) TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A
QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM
REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE
DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO
REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 NO AFFILIATE (AS
DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY OR PERSON THAT HAS BEEN AN AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY DURING THE IMMEDIATELY PRECEDING THREE MONTHS MAY PURCHASE, OTHERWISE ACQUIRE OR HOLD
THIS SECURITY OR A BENEFICIAL INTEREST HEREIN. 

  
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 Any Note (or security issued in exchange or substitution therefor) (i) as to which such
restrictions on transfer shall have expired in accordance with their terms or (ii) that has been sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, may, upon
surrender of such Note for exchange to the Note Registrar in accordance with the provisions of this Section 2.05, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall not bear the Restrictive Legend
required by this Section 2.05(c) and shall not be assigned (or deemed assigned) a restricted CUSIP number. The Restrictive Legend set forth above and affixed on any Note will be deemed, in accordance with the terms of the certificate
representing such Note, to be removed therefrom upon the Company’s delivery to the Trustee of written notice to such effect, without further action by the Company, the Trustee, the Holder(s) thereof or any other Person; at such time, such Note
will be deemed to be assigned an unrestricted CUSIP number as provided in the certificate representing such Note, it being understood that the Depositary of any Global Note may require a mandatory exchange or other process to cause such Global Note
to be identified by an unrestricted CUSIP number in the facilities of such Depositary. Without limiting the generality of any other provision of this Indenture, the Trustee will be entitled to receive an instruction letter from the Company before
taking any action with respect to effecting any such mandatory exchange or other process. The Company and the Trustee reserve the right to require the delivery of such legal opinions, certifications or other evidence as may reasonably be required in
order to determine that any proposed transfer of any Note is being made in compliance with the Securities Act and applicable state securities laws. 

The Company shall be entitled to instruct the Custodian in writing to so surrender any Global Note as to which any of the conditions set forth
in clause (i) and (ii) of the immediately preceding sentence have been satisfied, and, upon such instruction, the Custodian shall so surrender such Global Note for exchange; and any new Global Note so exchanged therefor shall not bear the
Restrictive Legend specified in this Section 2.05(c) and shall not be assigned (or deemed assigned) a restricted CUSIP number. 

Notwithstanding any other provisions of this Indenture (other than the provisions set forth in this Section 2.05(c)), a Global Note may
not be transferred as a whole or in part except (i) by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such nominee to a
successor Depositary or a nominee of such successor Depositary and (ii) for exchange of a Global Note or a portion thereof for one or more Physical Notes in accordance with the second immediately succeeding paragraph. 

The Depositary shall be a clearing agency registered under the Exchange Act. The Company initially appoints The Depository Trust Company to
act as Depositary with respect to each Global Note. Initially, each Global Note shall be issued to the Depositary, registered in the name of Cede & Co., as the nominee of the Depositary, and deposited with the Trustee as custodian for
Cede & Co. 
 If (i) the Depositary notifies the Company at any time that the Depositary is unwilling or unable to continue as
depositary for the Global Notes and a successor depositary is not appointed within 90 days, (ii) the Depositary ceases to be registered as a clearing agency under the Exchange Act and a successor depositary is not appointed within 90 days or
(iii) an Event of Default with respect to the Notes has occurred and is continuing and a beneficial owner of any Note requests that its beneficial interest therein be issued as a Physical Note, the Company shall execute, and the Trustee, upon
receipt of an Officer’s Certificate and a Company Order for the authentication and delivery of Notes, shall authenticate and deliver (x) in the case of clause (iii), a Physical Note to such beneficial owner in a principal amount equal to
the principal amount of such Note corresponding to such beneficial owner’s beneficial interest and (y) in the case of clause (i) or (ii), Physical Notes to each beneficial owner of the related Global Notes (or a portion thereof) in an
aggregate principal amount equal to the aggregate principal amount of such Global Notes in exchange for such Global Notes, and upon delivery of the Global Notes to the Trustee such Global Notes shall be canceled. 

  
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 Physical Notes issued in exchange for all or a part of the Global Note pursuant to this
Section 2.05(c) shall be registered in such names and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, or, in the case of clause (iii) of the immediately
preceding paragraph, the relevant beneficial owner, shall instruct the Trustee. Upon execution and authentication, the Trustee shall deliver such Physical Notes to the Persons in whose names such Physical Notes are so registered. 

At such time as all interests in a Global Note have been converted, canceled, repurchased or transferred, such Global Note shall be, upon
receipt thereof, canceled by the Trustee in accordance with standing procedures and existing instructions between the Depositary and the Custodian. At any time prior to such cancellation, if any interest in a Global Note is exchanged for Physical
Notes, converted, canceled, repurchased or transferred to a transferee who receives Physical Notes therefor or any Physical Note is exchanged or transferred for part of such Global Note, the principal amount of such Global Note shall, in accordance
with the standing procedures and instructions existing between the Depositary and the Custodian, be appropriately reduced or increased, as the case may be, and an endorsement shall be made on such Global Note, by the Trustee or the Custodian, at the
direction of the Trustee, to reflect such reduction or increase. 
 None of the Company, the Trustee, the Paying Agent, the Conversion Agent
or any other agent of the Company or the Trustee shall have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Note or maintaining, supervising or
reviewing any records relating to such beneficial ownership interests. 
 Neither the Company nor the Trustee shall have any responsibility
or liability for any act or omission of the Depositary. All notices and communications to be given to the Holders and all payments to be made to Holders in respect of the Notes shall be given or made only to, or upon the order of, the registered
Holder(s) (which shall be the Depositary or its nominee in the case of a Global Note). 
 The rights of beneficial owners in any Global Note
shall be exercised only through the Depositary subject to the Applicable Procedures of the Depositary. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its members,
participants and any beneficial owners. 
 (d) Any stock certificate representing Common Stock issued upon conversion of a Note shall bear a
legend in substantially the following form (unless such Common Stock has been transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such
transfer, or pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, or such Common Stock has been issued upon conversion of a Note that has transferred pursuant to a
registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such transfer, or pursuant to the exemption from registration provided by Rule 144 or any similar provision
then in force under the Securities Act, or unless otherwise agreed by the Company with written notice thereof to the Trustee and any transfer agent for the Common Stock): 

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE
OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER: 

(1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED INSTITUTIONAL BUYER” (WITHIN THE
MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

  
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 (2) AGREES FOR THE BENEFIT OF [LIGHTNING EMOTORS, INC.] (THE
“COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE OF THE SERIES OF NOTES
UPON THE CONVERSION OF WHICH THIS SECURITY WAS ISSUED OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW,
EXCEPT: 
 (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 

(B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF
SUCH TRANSFER, OR 
 (C) TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH
RULE 144A UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE
SECURITIES ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 PRIOR TO THE REGISTRATION OF
ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRANSFER AGENT FOR THE COMPANY’S COMMON STOCK RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE
REQUIRED IN ORDER FOR THE COMPANY TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 Any such Common Stock (i) as to which such restrictions on transfer shall have
expired in accordance with their terms, (ii) that has been transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such transfer or
(iii) that has been sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, may, upon surrender of the certificates representing such shares of Common Stock for
exchange in accordance with the procedures of the transfer agent for the Common Stock, be exchanged for a new certificate or certificates for a like aggregate number of shares of Common Stock, which shall not bear the restrictive legend required by
this Section 2.05(d). 
 (e) Any Note or Common Stock issued upon conversion or exchange of a Note that is repurchased or owned by any
Affiliate of the Company (or any Person who was an Affiliate of the Company at any time during the three months immediately preceding) may not be resold by such Affiliate (or such Person, as the case may be) unless registered under the Securities
Act or resold pursuant to an exemption from the registration requirements of the Securities Act in a transaction that results in such Note or Common Stock, as the case may be, no longer being a “restricted security” (as defined under Rule
144). 

  
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 (f) Notwithstanding anything contained herein to the contrary, neither the Trustee nor the
Note Registrar shall be responsible for ascertaining whether any transfer complies with the registration provisions of, or exemptions from, the Securities Act, applicable state securities laws or other applicable law. 

Section 2.06 Mutilated, Destroyed, Lost or Stolen Notes. In case any Note shall become mutilated or be destroyed, lost or stolen,
the Company in its discretion may execute, and upon receipt of a Company Order, the Trustee or an authenticating agent appointed by the Trustee shall authenticate and deliver, a new Note, bearing a registration number not contemporaneously
outstanding, in exchange and substitution for the mutilated Note, or in lieu of and in substitution for the Note so destroyed, lost or stolen. In every case the applicant for a substituted Note shall furnish to the Company, to the Trustee and, if
applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them harmless from any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction,
loss or theft, the applicant shall also furnish to the Company, to the Trustee and, if applicable, to such authenticating agent evidence to their satisfaction of the destruction, loss or theft of such Note and of the ownership thereof. 

The Trustee or such authenticating agent may authenticate any such substituted Note and deliver the same upon the receipt of such security or
indemnity as the Trustee, the Company and, if applicable, such authenticating agent may require. No service charge shall be imposed by the Company, the Trustee, the Note Registrar, any co-Note Registrar or the
Paying Agent upon the issuance of any substitute Note, but the Company may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or transfer tax required in connection therewith as a result of the name of the
Holder of the new substitute Note being different from the name of the Holder of the old Note that became mutilated or was destroyed, lost or stolen. In case any Note that has matured or is about to mature or has been surrendered for required
repurchase or is about to be converted in accordance with Article 14 shall become mutilated or be destroyed, lost or stolen, the Company may, in its sole discretion, instead of issuing a substitute Note, pay or authorize the payment of or
convert or authorize the conversion of the same (without surrender thereof except in the case of a mutilated Note), as the case may be, if the applicant for such payment or conversion shall furnish to the Company, to the Trustee and, if applicable,
to such authenticating agent such security or indemnity as may be required by them to save each of them harmless for any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction, loss or
theft, evidence satisfactory to the Company, the Trustee and, if applicable, any Paying Agent or Conversion Agent of the destruction, loss or theft of such Note and of the ownership thereof. 

Every substitute Note issued pursuant to the provisions of this Section 2.06 by virtue of the fact that any Note is destroyed, lost or
stolen shall constitute an additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Note shall be found at any time, and shall be entitled to all the benefits of (but shall be subject to all the limitations set
forth in) this Indenture equally and proportionately with any and all other Notes duly issued hereunder. To the extent permitted by law, all Notes shall be held and owned upon the express condition that the foregoing provisions are exclusive with
respect to the replacement, payment, conversion or repurchase of mutilated, destroyed, lost or stolen Notes and shall preclude any and all other rights or remedies notwithstanding any law or statute existing or hereafter enacted to the contrary with
respect to the replacement, payment, conversion or repurchase of negotiable instruments or other securities without their surrender. 

  
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 Section 2.07 Temporary Notes. Pending the preparation of Physical Notes, the
Company may execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon receipt of a Company Order, authenticate and deliver temporary Notes (printed or lithographed). Temporary Notes shall be issuable in any authorized
denomination, and substantially in the form of the Physical Notes but with such omissions, insertions and variations as may be appropriate for temporary Notes, all as may be determined by the Company. Every such temporary Note shall be executed by
the Company and authenticated by the Trustee or such authenticating agent upon the same conditions and in substantially the same manner, and with the same effect, as the Physical Notes. Without unreasonable delay, the Company shall execute and
deliver to the Trustee or such authenticating agent Physical Notes (other than any Global Note) and thereupon any or all temporary Notes (other than any Global Note) may be surrendered in exchange therefor, at each office or agency maintained by the
Company pursuant to Section 4.02 and the Trustee or such authenticating agent shall authenticate and deliver in exchange for such temporary Notes an equal aggregate principal amount of Physical Notes upon the written request of the Company.
Such exchange shall be made by the Company at its own expense and without any charge therefor. Until so exchanged, the temporary Notes shall in all respects be entitled to the same benefits and subject to the same limitations under this Indenture as
Physical Notes authenticated and delivered hereunder. 
 Section 2.08 Cancellation of Notes Paid, Converted, Etc. The Company
shall cause all Notes surrendered for the purpose of payment at maturity, registration of transfer or exchange or conversion, if surrendered to any Person that the Company controls other than the Trustee, to be surrendered to the Trustee for
cancellation and they will no longer be considered outstanding under this Indenture upon their payment at maturity, registration of transfer or exchange or conversion. All Notes delivered to the Trustee shall be canceled promptly by it. Except for
any Notes surrendered for registration of transfer or exchange, or as otherwise expressly permitted by any of the provisions of this Indenture, no Notes shall be authenticated in exchange for any Notes surrendered to the Trustee for cancellation.
The Trustee shall dispose of canceled Notes in accordance with its customary procedures. After such cancellation, the Trustee shall deliver a certificate of such cancellation to the Company, at the Company’s written request in a Company Order.

 Section 2.09 CUSIP Numbers. The Company in issuing the Notes may use CUSIP numbers (if then generally in use), and, if so,
the Trustee shall use CUSIP numbers in all notices issued to Holders as a convenience to such Holders; provided that the Trustee shall have no liability for any defect in the CUSIP numbers as they appear on any Note, notice or elsewhere and
that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Notes or on such notice and that reliance may be placed only on the other identification numbers printed on the Notes. The
Company shall promptly notify the Trustee in writing of any change in the CUSIP numbers. 
 Section 2.10 Additional Notes;
Repurchases. The Company may, with the consent of the Holders of a majority in aggregate principal amount of the Notes then outstanding, reopen this Indenture and issue additional Notes hereunder with the same terms as the Notes initially issued
hereunder (other than differences in the issue date, the issue price and interest accrued prior to the issue date of such additional Notes) in an unlimited aggregate principal amount; provided that if any such additional Notes are not
fungible with the Notes initially issued hereunder for U.S. federal income tax or securities laws purposes, such additional Notes shall have a separate CUSIP number, ISIN or other identifying numbers. Prior to the issuance of any such additional
Notes, the Company shall deliver to the Trustee a Company Order, an Officer’s Certificate and an Opinion of Counsel, such Officer’s Certificate and Opinion of Counsel to cover such matters, in addition to those required by Sections 10.05
and 17.05, as the Trustee shall reasonably request. In addition, the Company may, to the extent permitted by law and without the consent of Holders, and directly or indirectly (regardless of whether such Notes are surrendered to the Company),
repurchase Notes in the open market or otherwise, whether by the Company or its 

  
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Subsidiaries or through a private or public tender or exchange offer or through counterparties to private agreements, including by cash-settled swaps or other derivatives. The Company may, at its
option and to the extent permitted by applicable law, reissue, resell, hold or surrender to the Trustee for cancellation in accordance with Section 2.08 any Notes that the Company may repurchase, in the case of a reissuance or resale, so long
as such Notes do not constitute “restricted securities” (as defined under Rule 144) upon such reissuance or resale. Any Notes that the Company may repurchase shall be considered outstanding for all purposes under this Indenture (other
than, at any time when such Notes are held by the Company, any of its Subsidiaries or its Affiliates or any Subsidiary of any of such Affiliates, for the purpose of determining whether Holders of the requisite aggregate principal amount of Notes
have concurred in any direction, consent, waiver or other action under this Indenture) unless and until such time the Company surrenders them to the Trustee for cancellation in accordance with Section 2.08 and, upon receipt of a written order
from the Company, the Trustee shall cancel all Notes so surrendered. 
 ARTICLE 3 

SATISFACTION AND DISCHARGE 

Section 3.01 Satisfaction and Discharge. This Indenture and the Notes shall upon request of the Company contained in an
Officer’s Certificate cease to be of further effect, and the Trustee, at the expense of the Company, shall execute proper instruments reasonably requested by the Company acknowledging satisfaction and discharge of this Indenture and the Notes,
when (a) (i) all Notes theretofore authenticated and delivered (other than Notes which have been destroyed, lost or stolen and which have been replaced, paid or converted as provided in Section 2.06) have been delivered to the Trustee for
cancellation; or (ii) after the Notes have (x) become due and payable, whether on the Maturity Date, on any Fundamental Change Repurchase Date or otherwise and/or (y) been converted (and the related consideration due upon conversion
has been determined), the Company has deposited with the Trustee cash and/or has delivered to Holders shares of Common Stock, as applicable, (in the case of Common Stock, solely to satisfy the Company’s Conversion Obligation) sufficient,
without consideration of reinvestment, to pay all of the outstanding Notes and all other sums due and payable under this Indenture by the Company; and (b) the Company has delivered to the Trustee an Officer’s Certificate and an Opinion of
Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture have been complied with. Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the
Company to the Trustee under Section 7.06 shall survive. 
 ARTICLE 4 

PARTICULAR COVENANTS OF THE COMPANY 

Section 4.01 Payment of Principal and Interest. The Company covenants and agrees that it will cause to be paid the principal
(including the Fundamental Change Repurchase Price, if applicable) of, the Settlement Amounts owed upon conversion on, and accrued and unpaid interest on, each of the Notes at the places, at the respective times and in the manner provided herein and
in the Notes. 
 Notwithstanding anything to the contrary contained in this Indenture, the Company or Paying Agent may, to the extent it is
required to do so by law, deduct or withhold income or other similar taxes imposed by the United States of America from principal, premium or Interest or Defaulted Amounts payments hereunder. 

Section 4.02 Maintenance of Office or Agency. The Company will maintain in the United States an office or agency where the Notes
may be surrendered for registration of transfer or exchange or for presentation for payment or repurchase (“Paying Agent”) or for conversion (“Conversion Agent”) and where notices in respect of the Notes and this
Indenture may be made. The Company will give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or
shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made at the Corporate Trust Office. 

  
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 The Company may also from time to time designate a Paying Agent one or more other offices or
agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided that no such designation or rescission shall in any manner relieve the Company of its
obligation to maintain an office or agency in the United States for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.
The terms “Paying Agent” and “Conversion Agent” include any such additional or other offices or agencies, as applicable. 

The Company hereby initially designates the Trustee as the Paying Agent, Note Registrar, Custodian and Conversion Agent and the Corporate
Trust Office as a place where Notes may be surrendered for registration of transfer or exchange or for presentation for payment or repurchase (if applicable) or for conversion and where notices in respect of the Notes and this Indenture may be made;
provided that no office of the Trustee shall be a place for service of legal process on the Company. 
 Section 4.03
Appointments to Fill Vacancies in Trustee’s Office. The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 7.10, a Trustee, so that there
shall at all times be a Trustee hereunder. 
 Section 4.04 Provisions as to Paying Agent. (a) If the Company shall appoint
a Paying Agent other than the Trustee, the Company will cause such Paying Agent to execute and deliver to the Trustee an instrument in which such agent shall agree with the Trustee, subject to the provisions of this Section 4.04: 

(i) that it will hold all sums held by it as such agent for the payment of the principal (including the Fundamental Change
Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes in trust for the benefit of the Holders of the Notes; 

(ii) that it will give the Trustee prompt written notice of any failure by the Company to make any payment of the principal
(including the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes when the same shall be due and payable; and 

(iii) that at any time during the continuance of an Event of Default, upon request of the Trustee, it will forthwith pay to the
Trustee all sums so held in trust; 
 provided, that a Paying Agent appointed as contemplated under Section 15.02(f) shall not be required to
deliver any such instrument. 
 The Company shall, on or before each due date of the principal (including the Fundamental Change Repurchase
Price, if applicable) of, or accrued and unpaid interest on, the Notes, deposit with the Paying Agent a sum sufficient to pay such principal (including the Fundamental Change Repurchase Price, if applicable) or such accrued and unpaid interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee in writing of any failure to take such action; provided that if such deposit is made on the due date, such deposit must be received by the Paying Agent by
11:00 a.m., New York City time, on such date. 

  
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 (b) If the Company shall act as its own Paying Agent, it will, on or before each due date of
the principal (including the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes, set aside, segregate and hold in trust for the benefit of the Holders of the Notes a sum sufficient to pay such
principal (including the Fundamental Change Repurchase Price, if applicable) and accrued and unpaid interest, if any, so becoming due and will promptly notify the Trustee in writing of any failure to take such action and of any failure by the
Company to make any payment of the principal (including the Fundamental Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, the Notes when the same shall become due and payable. 

(c) Anything in this Section 4.04 to the contrary notwithstanding, the Company may, at any time, for the purpose of obtaining a
satisfaction and discharge of this Indenture, or for any other reason, pay, cause to be paid or deliver to the Trustee all sums or amounts held in trust by the Company or any Paying Agent hereunder as required by this Section 4.04, such sums or
amounts to be held by the Trustee upon the trusts herein contained and upon such payment or delivery by the Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from all further liability but only with
respect to such sums or amounts. 
 (d) Subject to applicable law, any money deposited with the Trustee, the Conversion Agent or any Paying
Agent, or any money and shares of Common Stock then held by the Company, in trust for the payment of the principal (including the Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest on and the consideration due upon
conversion of any Note and remaining unclaimed for two years after such principal (including the Fundamental Change Repurchase Price, if applicable), interest or consideration due upon conversion has become due and payable shall be paid to the
Company on request of the Company contained in an Officer’s Certificate, or (if then held by the Company) shall be discharged from such trust and the Trustee shall have no further liability with respect to such funds; and the Holder of such
Note shall thereafter, as an unsecured general creditor, look only to the Company for payment thereof, and all liability of the Trustee, the Conversion Agent or such Paying Agent with respect to such trust money, and all liability of the Company as
trustee with respect to such trust money and shares of Common Stock, shall thereupon cease. 
 Section 4.05 Existence. Subject
to Article 11, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect its corporate existence. 

Section 4.06 Rule 144A Information Requirement and Annual Reports. (a) At any time the Company is not subject to
Section 13 or 15(d) of the Exchange Act, the Company shall, so long as any of the Notes or any shares of Common Stock issuable upon conversion thereof shall, at such time, constitute “restricted securities” within the meaning of Rule
144(a)(3) under the Securities Act, promptly provide to the Trustee and, upon written request, any Holder, beneficial owner or prospective purchaser of such Notes or any shares of Common Stock issuable upon conversion of such Notes, the information
required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of such Notes or shares of Common Stock pursuant to Rule 144A. 

(b) The Company shall deliver to the Trustee, within 15 days after the same are required to be filed with the Commission, copies of any
documents or reports that the Company is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act (giving effect to any grace period provided by Rule 12b-25 under the
Exchange Act). Notwithstanding the foregoing, the Company shall in no event be required to deliver to, or otherwise provide or disclose to, the Trustee or any Holder any information for which the Company is requesting (assuming such request has not
been denied), or has received, confidential treatment from the Commission, or any correspondence with the Commission. Any such document or report that the Company files with the Commission via the Commission’s EDGAR system (or any successor
thereto) shall be deemed to be delivered to the Trustee for purposes of this Section 4.06(b) at the time such documents are filed via the EDGAR system (or any successor thereto); provided that the Trustee shall have no obligation to
determine whether such documents or reports have been filed via the EDGAR system. 

  
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 (c) Delivery of the reports and documents described in subsection (b) above to the
Trustee is for informational purposes only, and the Trustee’s receipt of such shall not constitute actual or constructive notice of any information contained therein or determinable from information contained therein, including the
Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to conclusively rely on an Officer’s Certificate). 

Section 4.07 Stay, Extension and Usury Laws. The Company covenants (to the extent that it may lawfully do so) that it shall
not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law or other law that would prohibit or forgive the Company from paying all or any portion of the principal of or
interest on the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or that may affect the covenants or the performance of this Indenture; and the Company (to the extent it may lawfully do so) hereby expressly
waives all benefit or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such
power as though no such law had been enacted. 
 Section 4.08 Compliance Certificate; Statements as to Defaults. The Company
shall deliver to the Trustee within 120 days after the end of each fiscal year of the Company (beginning with the fiscal year ending on December 31, 2021) an Officer’s Certificate stating whether the signers thereof have knowledge of any
failure by the Company to comply with all conditions and covenants then required to be performed under this Indenture and, if so, specifying each such failure and the nature thereof. 

In addition, the Company shall deliver to the Trustee within 30 days after an officer of the Company becomes aware of the occurrence of any
Event of Default or Default, an Officer’s Certificate setting forth the details of such Event of Default or Default, its status and the action that the Company is taking or proposing to take in respect thereof; provided that the Company
is not required to deliver such notice if such Event of Default or Default has been cured. 
 Section 4.09 Further Instruments and
Acts. Upon request of the Trustee, Paying Agent or Conversion Agent, the Company will execute and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purposes of
this Indenture. 
 Section 4.10 Indebtedness Incurrence. The Company covenants and agrees that so long as any amount of the
Notes remains outstanding under this Indenture, if the Company or any of its Subsidiaries creates, incurs, assumes, permits to exist, or otherwise becomes or remains directly or indirectly liable with respect to, any Indebtedness (other than the
Notes, any additional Notes issued under this Indenture and any Permitted Indebtedness), the Company shall: 
 (a) offer to redeem, in full,
all outstanding principal of, and accrued and unpaid interest on, the Notes outstanding under this Indenture; plus 
 (b) if such
additional Indebtedness is incurred prior to [                ], 2023, such Redemption of the Notes shall be accompanied with a prepayment premium equal to twelve months
of interest on the principal amount of the Notes being repaid, from the date of such debt incurrence, computed on the basis of a 360-day year composed of twelve 30-day
months and, for partial months, on the basis of the number of days actually elapsed in a 30-day month; 

  
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 (c) if such additional Indebtedness is incurred on or after
[                ], 2023, such Redemption of the Notes shall be accompanied with a prepayment premium equal to the amount of interest which would otherwise have accrued
on the Notes so repaid to, but excluding, the Maturity Date; and 
 (d) issue to each Holder a warrant to purchase a number of shares of
Common Stock equal to the quotient of (i) the amount of outstanding principal of the Notes then held by such Holder, divided by (ii) $11.50, which warrant shall be (A) exercisable only during the period from the date of repayment of
such Notes through and including the Maturity Date for an exercise price of $11.50 per share, (B) subject to registration rights in favor of the Holder thereof (covering such warrant and its underlying shares of Common Stock) substantially
equivalent to the registration rights to which such Holder is entitled with respect to those warrants to purchase shares of Common Stock issued to such Holder in connection with the issuance of the Notes (the “Initial Warrants”),
and (C) subject to a warrant agreement to be entered into between the Company and such Holder (or the Company’s transfer agent on behalf of such Holder) containing terms and conditions otherwise substantially equivalent to the terms and
conditions set forth in the warrant agreement governing the Initial Warrants. 
 (f) Pursuant to the Redemption requirement of this
Section 4.10, the Company must send to each applicable Holder of such Notes (and to any beneficial owner of a Global Note, if required by applicable law), the Trustee and the Paying Agent no less than 10 days prior to the date of Redemption
(the “Redemption Date”) a written notice of such Redemption (a “Redemption Notice”). 
 Such Redemption
Notice must state: 
 (i) that the Notes have been called for Redemption, briefly describing the Company’s Redemption
right under this Indenture; 
 (ii) the Redemption Date for such Redemption; 

(iii) the Redemption price per $1,000 principal amount of Notes for such Redemption; 

(iv) the name and address of the Paying Agent and the Conversion Agent; 

(v) that Notes called for Redemption may be converted at any time before the Close of Business on the Business Day immediately
before the Redemption Date (or, if the Company fails to pay the Redemption Price due on such Redemption Date in full, at any time until such time as the Company pays such Redemption Price in full); 

(vi) the Conversion Rate in effect on the Redemption Notice Date for such Redemption; 

(vii) that Notes called for Redemption must be delivered to the Paying Agent (in the case of Physical Notes) or the Depositary
Procedures must be complied with (in the case of Global Notes) for the Holder thereof to be entitled to receive the Redemption price; and 

(viii) the CUSIP and ISIN numbers, if any, of the Notes. 

On or before the Redemption Notice Date, the Company will send a copy of such Redemption Notice to the Trustee and the Paying Agent. Prior to
11:00 a.m. (New York time) on the Redemption Date, the Company will deposit with the Paying Agent cash in U.S. Dollars sufficient to pay the Redemption price. Notices of redemption may not be conditional and are irrevocable. The Company will comply
with the Depositary Procedures in the case of Global Notes. 

  
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 ARTICLE 5 

LISTS OF HOLDERS AND REPORTS BY THE COMPANY AND THE TRUSTEE 

Section 5.01 Lists of Holders. The Company covenants and agrees that it will furnish or cause to be furnished to the Trustee,
semi-annually, not more than 10 days after each [                ] and [                ]
in each year beginning with [                ], 2021, and at such other times as the Trustee may request in writing, within 30 days after receipt by the Company of any
such request (or such lesser time as the Trustee may reasonably request in order to enable it to timely provide any notice to be provided by it hereunder), a list in such form as the Trustee may reasonably require of the names and addresses of the
Holders as of a date not more than 10 days (or such other date as the Trustee may reasonably request in order to so provide any such notices) prior to the time such information is furnished, except that no such list need be furnished so long as the
Trustee is acting as Note Registrar. 
 Section 5.02 Preservation and Disclosure of Lists. The Trustee shall preserve, in as
current a form as is reasonably practicable, all information as to the names and addresses of the Holders contained in the most recent list furnished to it as provided in Section 5.01 or maintained by the Trustee in its capacity as Note
Registrar, if so acting. The Trustee may destroy any list furnished to it as provided in Section 5.01 upon receipt of a new list so furnished. 

ARTICLE 6 
 DEFAULTS AND REMEDIES

 Section 6.01 Events of Default. Each of the following events shall be an “Event of Default” with respect to
the Notes: 
 (a) default in any payment of interest on any Note when due and payable, and the default continues for a period of thirty
(30) days; 
 (b) default in the payment of principal of any Note when due and payable on the Maturity Date, upon any required
repurchase, upon declaration of acceleration or otherwise; 
 (c) failure by the Company to comply with its obligation to convert the Notes
in accordance with this Indenture upon exercise of a Holder’s conversion right, and such failure continues for three (3) Business Days; 

(d) failure by the Company to issue a Fundamental Change Company Notice in accordance with Section 15.02(c) when due, and such failure
continues for five (5) Business Days,; 
 (e) failure by the Company to comply with its obligations under Article 11; 

(f) failure by the Company for 60 days after receipt by the Company of written notice from the Trustee or the Holders of at least 25% in
aggregate principal amount of the Notes then outstanding has been received by the Company to comply with any of its other agreements contained in the Notes or this Indenture; 

(g) default by the Company or any Significant Subsidiary of the Company with respect to any mortgage, agreement or other instrument under which
there may be outstanding, or by which there may be secured or evidenced, any Indebtedness for money borrowed in excess of $20,000,000 (or its foreign currency equivalent) in the aggregate of the Company and/or any such Significant Subsidiary,
whether such Indebtedness now exists or shall hereafter be created (i) resulting in such Indebtedness becoming or being declared due and payable prior to its stated maturity or (ii) constituting a failure to pay


  
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the principal or interest of any such debt when due and payable at its stated maturity, upon required repurchase, upon declaration of acceleration or otherwise, in each case, after the expiration
of any applicable grace period, if such acceleration shall not have been rescinded or annulled or such failure to pay or default shall not have been cured or waived, or such Indebtedness shall not have been paid or discharged, as the case may be,
within thirty (30) days after written notice to the Company by the Trustee or to the Company and the Trustee by Holders of at least 25% in aggregate principal amount of Notes then outstanding in accordance with this Indenture; 

(h) the Company or any Significant Subsidiary shall commence a voluntary case or other proceeding seeking liquidation, reorganization or other
relief with respect to the Company or any such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator, custodian or other
similar official of the Company or any such Significant Subsidiary or any substantial part of its property, or shall consent to any such relief or to the appointment of or taking possession by any such official in an involuntary case or other
proceeding commenced against it, or shall make a general assignment for the benefit of creditors, or shall publicly admit in writing that it generally is not paying, or is unable to pay, its debts as they become due; or 

(i) an involuntary case or other proceeding shall be commenced against the Company or any Significant Subsidiary seeking liquidation,
reorganization or other relief with respect to the Company or such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator,
custodian or other similar official of the Company or such Significant Subsidiary or any substantial part of its property, and such involuntary case or other proceeding shall remain undismissed and unstayed for a period of sixty
(60) consecutive days. 
 Section 6.02 Acceleration; Rescission and Annulment. If one or more Events of Default shall have
occurred and be continuing (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation
of any administrative or governmental body), then, and in each and every such case (other than an Event of Default specified in Section 6.01(h) or Section 6.01(i) with respect to the Company), unless the principal of all of the Notes shall
have already become due and payable, either the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding determined in accordance with Section 8.04, by notice in writing to the Company (and to the
Trustee if given by Holders), may declare 100% of the principal of, and accrued and unpaid interest on, all the Notes to be due and payable immediately, and upon any such declaration the same shall become and shall automatically be immediately due
and payable, anything contained in this Indenture or in the Notes to the contrary notwithstanding. If an Event of Default specified in Section 6.01(h) or Section 6.01(i) with respect to the Company occurs and is continuing, 100% of the
principal of, and accrued and unpaid interest, if any, on, all Notes shall become and shall automatically be immediately due and payable. 

The immediately preceding paragraph, however, is subject to the conditions that if, at any time after the principal or interest of the Notes
shall have been so declared due and payable, and before any judgment or decree for the payment of the monies due shall have been obtained or entered as hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to
pay installments of accrued and unpaid interest upon all Notes and the principal of any and all Notes that shall have become due otherwise than by acceleration (with interest on overdue installments of accrued and unpaid interest to the extent that
payment of such interest is enforceable under applicable law, and on such principal at the rate borne by the Notes at such time) and amounts due to the Trustee pursuant to Section 7.06, and if (1) rescission would not conflict with any
judgment or decree of a court of competent jurisdiction and (2) 

  
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any and all existing Events of Default under this Indenture, other than the uncured nonpayment of the principal of and accrued and unpaid interest, if any, on Notes that shall have become due
solely by such acceleration, shall have been cured or waived pursuant to Section 6.09, then and in every such case (except as provided in the immediately succeeding sentence) the Holders of a majority in aggregate principal amount of the Notes
then outstanding, by written notice to the Company and to the Trustee, may waive all Defaults or Events of Default with respect to the Notes and rescind and annul such declaration and its consequences and such Default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver or rescission and annulment shall extend to or shall affect any subsequent Default or Event of Default, or shall impair any
right consequent thereon. Notwithstanding anything to the contrary herein, no such waiver or rescission and annulment shall extend to or shall affect any Default or Event of Default resulting from (i) the nonpayment of the principal (including
the Fundamental Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, any Notes, (ii) a failure to repurchase any Notes when required or (iii) a failure to pay or deliver, as the case may be, the consideration due
upon conversion of the Notes. 
 Section 6.03 Additional Interest. Notwithstanding anything in this Indenture or in the Notes to
the contrary, to the extent the Company elects, the sole remedy for an Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.06(b) shall after the occurrence of such an Event of Default
consist exclusively of the right to receive Additional Interest on the Notes at a rate equal to: (i) 2.00% per annum of the principal amount of the Notes outstanding for each day during the period beginning on, and including, the date on which such
Event of Default first occurs and ending on the earlier of (x) the date on which such Event of Default is cured or validly waived in accordance with this Article 6 and (y) the 180th day immediately following, and including, the date
on which such Event of Default first occurs and (ii) if such Event of Default has not been cured or validly waived prior to the 181st day immediately following, and including, the date on which such Event of Default first occurs, 0.50% per
annum of the principal amount of Notes outstanding for each day during the period beginning on, and including, the 181st day immediately following, and including, the date on which such Event of Default first occurs and ending on the earlier of
(x) the date on which the Event of Default is cured or validly waived in accordance with this Article 6 and (y) the 360th day immediately following, and including, the date on which such Event of Default first occurs. If the Company
so elects, such Additional Interest shall be payable in the same manner and on the same dates as the stated interest payable on the Notes and shall accrue on all outstanding Notes from, and including, the date on which the Event of Default relating
to the Company’s failure to comply with its obligations as set forth in Section 4.06(b) first occurs to, and including, the 360th day thereafter (or such earlier date on which such Event of Default is cured or validly waived in accordance
with this Article 6). On the 361st day after such Event of Default (if the Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.06(b) is not cured or validly waived in accordance
with this Article 6 prior to such 361st day), such Additional Interest shall cease to accrue and the Notes shall be immediately subject to acceleration as provided in Section 6.02. The provisions of this paragraph will not affect the
rights of Holders of Notes in the event of the occurrence of any Event of Default other than the Company’s failure to comply with its obligations as set forth in Section 4.06(b). In the event the Company does not elect to pay Additional
Interest following an Event of Default in accordance with this Section 6.03 or the Company has elected to make such payment but does not pay the Additional Interest when due, the Notes shall be immediately subject to acceleration as provided in
Section 6.02. 
 In order to elect to pay Additional Interest as the sole remedy during the first 360 days after the occurrence of any
Event of Default described in the immediately preceding paragraph, the Company must notify all Holders of the Notes, the Trustee and the Paying Agent in an Officer’s Certificate of such election on or before the open of business on the Business
Day immediately succeeding the date on which such Event of Default first occurs. Upon the failure to timely give such notice, the Notes shall be immediately subject to acceleration as provided in Section 6.02. The Officer’s Certificate
under this Section 6.03(b) shall state (i) the amount of such Additional Indenture that is payable and (ii) the date on which such Additional Interest is payable. Unless and until a Responsible Officer of the Trustee receives at the
Corporate Trust Office such Officer’s Certificate, the Trustee may assume without inquiry that no such Additional Interest is payable. 

  
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 In no event shall any Additional Interest that may accrue as a result of the Company’s
failure to timely file any document or report that it is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable, after giving effect to all applicable grace periods thereunder and other than
reports on Form 8-K), accrue at a rate in excess of 0.50% per annum pursuant to this Indenture, regardless of the number of events or circumstances giving rise to the requirement to pay such Additional
Interest. 
 Section 6.04 Payments of Notes on Default; Suit Therefor. If an Event of Default described in clause (a) or
(b) of Section 6.01 shall have occurred and be continuing, the Company shall, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of the Notes, the whole amount then due and payable on the Notes for principal and
interest, if any, with interest on any overdue principal and interest, if any, at the rate borne by the Notes at such time, and, in addition thereto, such further amount as shall be sufficient to cover any amounts due to the Trustee under
Section 7.06. If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon the Notes and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the
Company or any other obligor upon the Notes, wherever situated. 
 In the event there shall be pending proceedings for the bankruptcy or for
the reorganization of the Company or any other obligor on the Notes under Title 11 of the United States Code, or any other applicable law, or in case a receiver, assignee or trustee in bankruptcy or reorganization, liquidator, sequestrator or
similar official shall have been appointed for or taken possession of the Company, the property of the Company, or in the event of any other judicial proceedings relative to the Company, or to the creditors or property of the Company, the Trustee,
irrespective of whether the principal of the Notes shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand pursuant to the provisions of this
Section 6.04, shall be entitled and empowered, by intervention in such proceedings or otherwise, to file and prove a claim or claims for the whole amount of principal and accrued and unpaid interest, if any, in respect of the Notes, and, in
case of any judicial proceedings, to file such proofs of claim and other papers or documents and to take such other actions as it may deem necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceedings relative to the Company, its creditors, or its property, and to collect and receive any monies or
other property payable or deliverable on any such claims, and to distribute the same after the deduction of any amounts due to the Trustee under Section 7.06; and any receiver, assignee or trustee in bankruptcy or reorganization, liquidator,
custodian or similar official is hereby authorized by each of the Holders to make such payments to the Trustee, as administrative expenses, and, in the event that the Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for reasonable compensation, expenses, advances and disbursements, including agents and counsel fees, and including any other amounts due to the Trustee under Section 7.06, incurred by it up to the date of
such distribution. To the extent that such payment of reasonable compensation, expenses, advances and disbursements out of the estate in any such proceedings shall be denied for any reason, payment of the same shall be secured by a lien on, and
shall be paid out of, any and all distributions, dividends, monies, securities and other property that the Holders of the Notes may be entitled to receive in such proceedings, whether in liquidation or under any plan of reorganization or arrangement
or otherwise. 

  
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 Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to
or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting such Holder or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder in any
such proceeding. 
 All rights of action and of asserting claims under this Indenture, or under any of the Notes, may be enforced by the
Trustee without the possession of any of the Notes, or the production thereof at any trial or other proceeding relative thereto, and any such suit or proceeding instituted by the Trustee shall be brought in its own name as trustee of an express
trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Notes. 

In any proceedings brought by the Trustee (and in any proceedings involving the interpretation of any provision of this Indenture to which the
Trustee shall be a party) the Trustee shall be held to represent all the Holders of the Notes, and it shall not be necessary to make any Holders of the Notes parties to any such proceedings. 

In case the Trustee shall have proceeded to enforce any right under this Indenture and such proceedings shall have been discontinued or
abandoned because of any waiver pursuant to Section 6.09 or any rescission and annulment pursuant to Section 6.02 or for any other reason or shall have been determined adversely to the Trustee, then and in every such case the Company, the
Holders and the Trustee shall, subject to any determination in such proceeding, be restored respectively to their several positions and rights hereunder, and all rights, remedies and powers of the Company, the Holders and the Trustee shall continue
as though no such proceeding had been instituted. 
 Section 6.05 Application of Monies Collected by Trustee. Any monies
collected by the Trustee pursuant to this Article 6 with respect to the Notes shall be applied in the following order, at the date or dates fixed by the Trustee for the distribution of such monies, upon presentation of the several Notes, and
stamping thereon the payment, if only partially paid, and upon surrender thereof, if fully paid: 
 First, to the payment of all
amounts due the Trustee, including its agents and counsel, under Section 7.06; 
 Second, in case the principal of the
outstanding Notes shall not have become due and be unpaid, to the payment of any interest on, and any cash due upon conversion of, the Notes in default in the order of the date due of the payments of such interest and cash due upon conversion, as
the case may be, with interest (to the extent that such interest has been collected by the Trustee) payable upon such overdue payments at the rate borne by the Notes at such time, such payments to be made ratably to the Persons entitled thereto;

 Third, in case the principal of the outstanding Notes shall have become due, by declaration or otherwise, and be unpaid to the
payment of the whole amount (including, if applicable, the payment of the Fundamental Change Repurchase Price and any cash due upon conversion) then owing and unpaid upon the Notes for principal and interest, if any, with interest on the overdue
principal and, to the extent that such interest has been collected by the Trustee, upon overdue installments of interest at the rate borne by the Notes at such time, and in case such monies shall be insufficient to pay in full the whole amounts so
due and unpaid upon the Notes, then to the payment of such principal (including, if applicable, the Fundamental Change Repurchase Price and any cash due upon conversion) and interest without preference or priority of principal over interest, or of
interest over principal or of any installment of interest over any other installment of interest, or of any Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the Fundamental Change Repurchase Price and
any cash due upon conversion) and accrued and unpaid interest; and 

  
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 Fourth, to the payment of the remainder, if any, to the Company. 

Section 6.06 Proceedings by Holders. Except to enforce the right to receive payment of principal (including, if applicable, the
Fundamental Change Repurchase Price) or interest when due, or the right to receive payment or delivery of the consideration due upon conversion, no Holder of any Note shall have any right by virtue of or by availing of any provision of this
Indenture to institute any suit, action or proceeding in equity or at law upon or under or with respect to this Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other similar official, or for any other remedy
hereunder, unless: 
 (a) such Holder previously shall have given to the Trustee written notice of an Event of Default and of the continuance
thereof, as herein provided; 
 (b) Holders of at least 25% in aggregate principal amount of the Notes then outstanding shall have made
written request upon the Trustee to institute such action, suit or proceeding in its own name as Trustee hereunder; 
 (c) such Holders shall
have offered, and, if requested, provided, to the Trustee such security or indemnity satisfactory to the Trustee against any loss, liability or expense to be incurred therein or thereby; 

(d) the Trustee for 60 days after its receipt of such notice, request and offer of such security or indemnity, shall have neglected or refused
to institute any such action, suit or proceeding; and 
 (e) no direction that, in the opinion of the Trustee, is inconsistent with such
written request shall have been given to the Trustee by the Holders of a majority of the aggregate principal amount of the Notes then outstanding within such 60-day period pursuant to Section 6.09, 

it being understood and intended, and being expressly covenanted by the taker and Holder of every Note with every other taker and Holder and the Trustee that
no one or more Holders shall have any right in any manner whatever by virtue of or by availing of any provision of this Indenture to affect, disturb or prejudice the rights of any other Holder (it being understood that the Trustee does not have an
affirmative duty to ascertain whether or not such actions or forbearances are prejudicial to any other Holder), or to obtain or seek to obtain priority over or preference to any other such Holder, or to enforce any right under this Indenture, except
in the manner herein provided and for the equal, ratable and common benefit of all Holders (except as otherwise provided herein). For the protection and enforcement of this Section 6.06, each and every Holder and the Trustee shall be entitled
to such relief as can be given either at law or in equity. 
 Notwithstanding any other provision of this Indenture and any provision of any
Note, each Holder shall have the contractual right to receive payment or delivery, as the case may be, of (x) the principal (including the Fundamental Change Repurchase Price, if applicable) of, (y) accrued and unpaid interest, if any, on,
and (z) the consideration due upon conversion of, such Note, on or after the respective due dates expressed or provided for in such Note or in this Indenture, and the contractual right to institute suit for the enforcement of any such payment
or delivery, as the case may be, on or after such respective dates, shall not be amended without the consent of each Holder. 

  
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 Section 6.07 Proceedings by Trustee. In case of an Event of Default, the Trustee
may in its discretion proceed to protect and enforce the rights vested in it by this Indenture by such appropriate judicial proceedings as are necessary to protect and enforce any of such rights, either by suit in equity or by action at law or by
proceeding in bankruptcy or otherwise, whether for the specific enforcement of any covenant or agreement contained in this Indenture or in aid of the exercise of any power granted in this Indenture, or to enforce any other legal or equitable right
vested in the Trustee by this Indenture or by law. 
 Section 6.08 Remedies Cumulative and Continuing. Except as provided in the
last paragraph of Section 2.06, all powers and remedies given by this Article 6 to the Trustee or to the Holders shall, to the extent permitted by law, be deemed cumulative and not exclusive of any thereof or of any other powers and
remedies available to the Trustee or the Holders of the Notes, by judicial proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in this Indenture, and no delay or omission of the Trustee or of
any Holder of any of the Notes to exercise any right or power accruing upon any Default or Event of Default shall impair any such right or power, or shall be construed to be a waiver of any such Default or Event of Default or any acquiescence
therein; and, subject to the provisions of Section 6.06, every power and remedy given by this Article 6 or by law to the Trustee or to the Holders may be exercised from time to time, and as often as shall be deemed expedient, by the
Trustee or by the Holders. The Trustee may maintain a proceeding even if it does not possess any Notes or does not produce any Notes in the proceeding. 

Section 6.09 Direction of Proceedings and Waiver of Defaults by Majority of Holders. The Holders of a majority of the aggregate
principal amount of the Notes at the time outstanding determined in accordance with Section 8.04 shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any
trust or power conferred on the Trustee with respect to the Notes; provided, however, that (a) such direction shall not be in conflict with any rule of law or with this Indenture, and (b) the Trustee may take any other action
deemed proper by the Trustee that is not inconsistent with such direction. The Trustee may refuse to follow any direction that it determines is unduly prejudicial to the rights of any other Holder or that would involve the Trustee in personal
liability or for which it has not received indemnity or security satisfactory to the Trustee against loss, liability or expense (it being understood that the Trustee does not have an affirmative duty to determine whether any direction is prejudicial
to any Holder). The Holders of a majority in aggregate principal amount of the Notes at the time outstanding determined in accordance with Section 8.04 may on behalf of the Holders of all of the Notes (x) waive any past Default or Event of
Default hereunder and its consequences except (i) a default in the payment of accrued and unpaid interest, if any, on, or the principal (including any Fundamental Change Repurchase Price) of, the Notes when due that has not been cured pursuant
to the provisions of Section 6.01, (ii) a failure by the Company to pay or deliver, as the case may be, the consideration due upon conversion of the Notes or (iii) a default in respect of a covenant or provision hereof which under
Article 10 cannot be modified or amended without the consent of each Holder of an outstanding Note affected; and (y) rescind any resulting acceleration of the Notes and its consequences if (i) such rescission would not conflict with
any judgment or decree of a court of competent jurisdiction and (ii) all existing Events of Default (other than nonpayment of the principal of, and interest on, the Notes that have become due solely by such acceleration) have been cured or
waived. Upon any such waiver the Company, the Trustee and the Holders of the Notes shall be restored to their former positions and rights hereunder; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any
right consequent thereon. Whenever any Default or Event of Default hereunder shall have been waived as permitted by this Section 6.09, said Default or Event of Default shall for all purposes of the Notes and this Indenture be deemed to have
been cured and to be not continuing; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon. 

  
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 Section 6.10 Notice of Defaults. The Trustee shall, after the occurrence and
continuance of a Default of which a Responsible Officer has actual knowledge, deliver to all Holders notice of such Default within 90 days after such Responsible Officer obtains such knowledge, unless such Defaults shall have been cured or waived
before the giving of such notice; provided that, except in the case of a Default in the payment of the principal of (including the Fundamental Change Repurchase Price, if applicable), or accrued and unpaid interest on, any of the Notes or a Default
in the payment or delivery of the consideration due upon conversion, the Trustee shall be protected in withholding such notice if and so long as a Responsible Officer of the Trustee in good faith determines that the withholding of such notice is in
the interests of the Holders. 
 Section 6.11 Undertaking to Pay Costs. All parties to this Indenture agree, and each Holder of
any Note by its acceptance thereof shall be deemed to have agreed, that any court may, in its discretion, require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken
or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses,
against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided that the provisions of this Section 6.11 (to the extent permitted by law) shall not apply to
any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Notes at the time outstanding determined in accordance with Section 8.04, or to any
suit instituted by any Holder for the enforcement of the payment of the principal of or accrued and unpaid interest, if any, on any Note (including, but not limited to, the Fundamental Change Repurchase Price, if applicable) on or after the due date
expressed or provided for in such Note or to any suit for the enforcement of the right to convert any Note, or receive the consideration due upon conversion, in accordance with the provisions of Article 14. 

Section 6.12 Company’s Failure to Timely Convert. If at any time from and after the issue
date of the Notes, the Company shall fail, for any reason or for no reason, on or prior to the second (2nd) Trading Day after receipt of the applicable Conversion Notice (the “Share
Delivery Deadline”), either (I) if the Company’s stock transfer agent (the “Transfer Agent”) is not participating in The Depository Trust Company (“DTC”) Fast Automated Securities Transfer
Program, to issue and deliver to such Holder (or its designee) a certificate for the number of shares of Common Stock to which such Holder is entitled and register such shares of Common Stock on the Company’s share register or, if the Transfer
Agent is participating in the DTC Fast Automated Securities Transfer Program, to credit such Holder’s or its designee’s balance account with DTC for such number of shares of Common Stock to which such Holder is entitled upon such
Holder’s conversion of such portion of the applicable Note or (II) after the initial effective date of the registration statement filed pursuant to the Subscription Agreement, if the registration statement covering the resale of the shares
of Common Stock that are the subject of the Conversion Notice (the “Unavailable Conversion Shares”) is not available for the resale of such Unavailable Conversion Shares and the Company fails to promptly, but in no event later than
as required pursuant to the Subscription Agreement (x) notify such Holder and (y) deliver the shares of Common Stock electronically without any restrictive legend by crediting such aggregate number of shares of Common Stock to which such
Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit/Withdrawal At Custodian system (the event described in the immediately foregoing clause (II) is hereinafter
referred as a “Notice Failure” and together with the event described in clause (I) above, a “Delivery Failure”), then, in addition to all other remedies available to such Holder, (X) the Company shall pay
in cash to such Holder on each day after the Share Delivery Deadline that the issuance of such shares of Common Stock is not timely effected an amount equal to 1% of the product of (A) the sum of the number of shares of Common Stock not issued
to such Holder on or prior to the Share Delivery Deadline and to which such Holder is entitled, multiplied by (B) any trading price of the Common Stock selected by such Holder in writing as in effect at any time during the period


  
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beginning on the applicable date of such Conversion Notice and ending on the applicable Share Delivery Deadline, and (Y) such Holder, upon written notice to the Company, may void its
Conversion Notice with respect to, and retain or have returned, as the case may be, all, or any portion, of such Notes that has not been converted pursuant to such Conversion Notice; provided that the voiding of a Conversion Notice shall not affect
the Company’s obligations to make any payments which have accrued prior to the date of such notice pursuant to this Section 6.12 or otherwise. In addition to the foregoing, from and after the issue date of the Notes, if on or prior to the
Share Delivery Deadline either (A) the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, the Company shall fail to issue and deliver to such Holder (or its designee) a certificate and register such
shares of Common Stock on the Company’s share register or, if the Transfer Agent is participating in the DTC Fast Automated Securities Transfer Program, the Transfer Agent shall fail to credit the balance account of such Holder or such
Holder’s designee, as applicable, with DTC for the number of shares of Common Stock to which such Holder is entitled upon such Holder’s conversion hereunder or pursuant to the Company’s obligation pursuant to clause (ii) below or
(B) a Notice Failure occurs, and if on or after such Share Delivery Deadline such Holder purchases (in an open market transaction or otherwise) shares of Common Stock corresponding to all or any portion of the number of shares of Common Stock
issuable upon such conversion that such Holder is entitled to receive from the Company and has not received from the Company in connection with such Delivery Failure or Notice Failure, as applicable (a
“Buy-In”), then, in addition to all other remedies available to such Holder, the Company shall, within two (2) Business Days after receipt of such Holder’s request and in such
Holder’s discretion, either: (I) pay cash to such Holder in an amount equal to such Holder’s total purchase price (including brokerage commissions and other
out-of-pocket expenses, if any) for the shares of Common Stock so purchased (including, without limitation, by any other Person in respect, or on behalf, of such Holder)
(the “Buy-In Price”), at which point the Company’s obligation to so issue and deliver such certificate (and to issue such shares of Common Stock) or credit to the balance account of such
Holder or such Holder’s designee, as applicable, with DTC for the number of shares of Common Stock to which such Holder is entitled upon such Holder’s conversion hereunder (as the case may be) (and to issue such shares of Common Stock)
shall terminate, or (II) promptly honor its obligation to so issue and deliver to such Holder a certificate or certificates representing such shares of Common Stock or credit the balance account of such Holder or such Holder’s designee, as
applicable, with DTC for the number of shares of Common Stock to which such Holder is entitled upon such Holder’s conversion hereunder (as the case may be) and pay cash to such Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (x) such number of shares of Common Stock multiplied by (y) the lowest Closing Sale Price of the Common Stock on any Trading Day during the period commencing on the date of
the applicable Conversion Notice and ending on the date of such issuance and payment under this clause (II). Nothing herein shall limit the Holder’s right to pursue any other remedies available to it hereunder, at law or in equity, including,
without limitation, a decree of specific performance and/or injunctive relief with respect to the Company’s failure to timely deliver certificates representing shares of Common Stock (or to electronically deliver such shares of Common Stock)
upon the conversion of this Note as required pursuant to the terms hereof. Neither the Trustee nor the Conversion Agent has any duty to determine whether a Notice Failure, Delivery Failure or Buy-In has
occurred, calculate or verify the calculations of Buy-In Price or notify Holders of any of the foregoing. 

ARTICLE 7 
 CONCERNING THE TRUSTEE

 Section 7.01 Duties and Responsibilities of Trustee. The Trustee, prior to the occurrence of an Event of Default and after
the curing or waiver of all Events of Default that may have occurred, undertakes to perform such duties and only such duties as are specifically set forth in this Indenture. If an 

  
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Event of Default has occurred and is continuing, the Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in its
exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs; provided that the Trustee will be under no obligation to exercise any of the rights or powers under this Indenture at the
request or direction of any of the Holders unless such Holders have offered, and if requested, provided to the Trustee indemnity or security satisfactory to the Trustee against any loss, liability or expense that might be incurred by it in
compliance with such request or direction. 
 No provision of this Indenture shall be construed to relieve the Trustee from liability for
its own grossly negligent action, its own grossly negligent failure to act or its own willful misconduct, except that: 
 (a) prior to the
occurrence of an Event of Default and after the curing or waiving of all Events of Default that may have occurred: 
 (i) the
duties and obligations of the Trustee shall be determined solely by the express provisions of this Indenture, and the Trustee shall not be liable except for the performance of such duties and obligations as are specifically set forth in this
Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee; and 
 (ii) in the
absence of gross negligence and willful misconduct on the part of the Trustee, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to
the Trustee and conforming to the requirements of this Indenture; but, in the case of any such certificates or opinions that by any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to
examine the same to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of any mathematical calculations or other facts stated therein); 

(b) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer or Officers of the Trustee, unless it
shall be proved that the Trustee was grossly negligent in ascertaining the pertinent facts; 
 (c) the Trustee shall not be liable with
respect to any action taken or omitted to be taken by it in good faith in accordance with the direction of the Holders of not less than a majority of the aggregate principal amount of the Notes at the time outstanding determined as provided in
Section 8.04 relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture; 

(d) whether or not therein provided, every provision of this Indenture relating to the conduct or affecting the liability of, or affording
protection to, the Trustee shall be subject to the provisions of this Section; 
 (e) the Trustee shall not be liable in respect of any
payment (as to the correctness of amount, entitlement to receive or any other matters relating to payment) or notice effected by the Company or any Paying Agent or any records maintained by any co-Note
Registrar with respect to the Notes; 
 (f) if any party fails to deliver a notice relating to an event the fact of which, pursuant to this
Indenture, requires notice to be sent to the Trustee, the Trustee may conclusively rely on its failure to receive such notice as reason to act as if no such event occurred; 

  
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 (g) in the absence of written investment direction from the Company, all cash received by
the Trustee shall be placed in a non-interest bearing trust account, and in no event shall the Trustee be liable for the selection of investments or for investment losses incurred thereon or for losses
incurred as a result of the liquidation of any such investment prior to its maturity date or the failure of the party directing such investments prior to its maturity date or the failure of the party directing such investment to provide timely
written investment direction, and the Trustee shall have no obligation to invest or reinvest any amounts held hereunder in the absence of such written investment direction from the Company; and 

(h) in the event that the Trustee is also acting as Custodian, Note Registrar, Paying Agent, Conversion Agent or transfer agent hereunder, the
rights and protections afforded to the Trustee pursuant to this Article 7 shall also be afforded to such Custodian, Note Registrar, Paying Agent, Conversion Agent or transfer agent. 

None of the provisions contained in this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur personal
financial liability in the performance of any of its duties or in the exercise of any of its rights or powers. 
 Section 7.02
Reliance on Documents, Opinions, Etc. Except as otherwise provided in Section 7.01: 
 (a) The Trustee may conclusively rely and
shall be fully protected in acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, consent, judgment, order, bond, note, coupon or other paper or document believed by it in good faith to be genuine and to
have been signed or presented by the proper party or parties. 
 (b) Any request, direction, order or demand of the Company mentioned herein
shall be sufficiently evidenced by an Officer’s Certificate (unless other evidence in respect thereof be herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy thereof certified by the Secretary or
an Assistant Secretary of the Company. Before the Trustee acts or refrains from acting, it may require an Officer’s Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good
faith in reliance on such Officer’s Certificate or Opinion of Counsel. 
 (c) The Trustee may consult with counsel and require an
Opinion of Counsel and any advice of such counsel or Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken or omitted by it hereunder in good faith and in reliance on such advice or Opinion of
Counsel. 
 (d) The Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate,
statement, instrument, opinion, report, notice, request, direction, consent, order, judgment, bond, debenture or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters
as it may see fit, and, if the Trustee shall determine in its reasonable judgment to make such further inquiry or investigation, it shall be entitled, at a reasonable time on any Business Day after reasonable notice, to examine the books, records
and premises of the Company, personally or by agent or attorney at the expense of the Company and shall incur no liability of any kind by reason of such inquiry or investigation. 

  
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 (e) The Trustee may execute any of the trusts or powers hereunder or perform any duties
hereunder either directly or by or through agents, custodians, nominees or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent, custodian, nominee or attorney appointed by it with due care
hereunder, and the permissive rights of the Trustee enumerated herein shall not be construed as duties. 
 (f) The Trustee shall not be
required to give any bond or surety in respect of the execution of the trusts and powers under this Indenture. 
 (g) The Trustee may request
that the Company deliver an Officer’s Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officer’s Certificate may be signed by
any Person authorized to sign an Officer’s Certificate, including any Person specified as so authorized in any such certificate previously delivered and not superseded. 

(h) The Trustee shall not be deemed to have notice of any Default or Event of Default (except in the case of a Default or Event of Default in
payment of scheduled principal of, premium, if any, or interest on, any Note) unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a Default or Event of Default (and
stating the occurrence of a Default or Event of Default) is actually received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Notes and this Indenture and states that it is a “Notice of Default”.

 (i) The Trustee shall not be responsible or liable for any action it takes or omits to take in good faith which it reasonably believes to
be authorized or within its rights or powers. 
 (j) The Trustee shall not be responsible or liable for any action taken or omitted by it in
good faith at the direction of the holders of not less than a majority in principal amount of the Notes as to the time, method and place of conducting any proceedings for any remedy available to the Trustee or the exercising of any power conferred
by this Indenture. 
 (k) Neither the Trustee nor any of its directors, officers, employees, agents or affiliates shall be responsible for
nor have any duty to monitor the performance or any action of the Company, or any of their respective directors, members, officers, agents, affiliates or employee, nor shall it have any liability in connection with the malfeasance or nonfeasance by
such party. The Trustee shall not be responsible for any inaccuracy in the information obtained from the Company or for any inaccuracy or omission in the records which may result from such information or any failure by the Trustee to perform its
duties as set forth herein as a result of any inaccuracy or incompleteness. 
 (l) In no event shall the Trustee be responsible or liable for
punitive, special, indirect, incidental or any consequential loss or damage of any kind whatsoever (including but not limited to lost profits), even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the form
of action other than any such loss or damage caused by the Trustee’s willful misconduct or gross negligence as determined by a final order of a court of competent jurisdiction. The Trustee shall not be charged with knowledge of any Default or
Event of Default with respect to the Notes, unless either (1) a Responsible Officer shall have actual knowledge of such Default or Event of Default or (2) written notice of such Default or Event of Default shall have been actually received
by the Trustee at the Corporate Trust Office of the Trustee, from the Company or any Holder of the Notes, and such notice references the Notes and this Indenture and states that is a “Notice of Default.” 

(m) Neither the Trustee nor any agent shall have any responsibility or liability for any actions taken or not taken by the Depositary. 

  
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 Section 7.03 No Responsibility for Recitals, Etc. The recitals contained herein
and in the Notes (except in the Trustee’s certificate of authentication) shall be taken as the statements of the Company, and the Trustee assumes no responsibility for the correctness of the same. The Trustee makes no representations as to the
validity or sufficiency of this Indenture or of the Notes or other transaction documents relating to the Notes and this Indenture. The Trustee shall not be accountable for the use or application by the Company of any Notes or the proceeds of any
Notes authenticated and delivered by the Trustee in conformity with the provisions of this Indenture or any money paid to the Company or upon the Company’s direction under any provision of this Indenture. 

Section 7.04 Trustee, Paying Agents, Conversion Agents or Note Registrar May Own Notes. The Trustee, any Paying Agent, any
Conversion Agent or Note Registrar (in each case, if other than an Affiliate of the Company), in its individual or any other capacity, may become the owner or pledgee of Notes with the same rights it would have if it were not the Trustee, Paying
Agent, Conversion Agent or Note Registrar. 
 Section 7.05 Monies and Shares of Common Stock to Be Held in Trust. All monies and
shares of Common Stock received by the Trustee shall, until used or applied as herein provided, be held in trust for the purposes for which they were received. Money and shares of Common Stock held by the Trustee in trust hereunder need not be
segregated from other funds except to the extent required by law. The Trustee shall be under no liability for interest on any money received by it hereunder except as may be agreed from time to time by the Company and the Trustee. 

Section 7.06 Compensation and Expenses of Trustee. The Company covenants and agrees to pay to the Trustee from time to time, and
the Trustee shall be entitled to, compensation for all services rendered by it hereunder in any capacity (which shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust) as mutually agreed to in
writing between the Trustee and the Company, and the Company will pay or reimburse the Trustee upon its request for all reasonable expenses, disbursements and advances incurred or made by the Trustee in accordance with any of the provisions of this
Indenture in any capacity hereunder (including the compensation and the reasonable expenses and disbursements of its agents and counsel and of all Persons not regularly in its employ) except any such expense, disbursement or advance as shall have
been caused by its gross negligence or willful misconduct as determined by a final order of a court of competent jurisdiction. The Company also covenants to indemnify the Trustee in any capacity under this Indenture and any other document or
transaction entered into in connection herewith and its agents and any authenticating agent for, and to hold them harmless against, any loss, claim, damage, liability or expense (including attorneys’ fees) incurred without gross negligence or
willful misconduct on the part of the Trustee, its officers, directors, agents or employees, or such agent or authenticating agent, as the case may be, as determined by a final order of a court of competent jurisdiction, and arising out of or in
connection with the acceptance or administration of this Indenture or in any other capacity hereunder (whether such claims arise by or against the Company or a third person), including the reasonable costs and expenses of defending themselves
against any claim of liability in the premises or enforcing the Company’s obligations hereunder. The obligations of the Company under this Section 7.06 to compensate or indemnify the Trustee and to pay or reimburse the Trustee for
expenses, disbursements and advances shall be secured by a senior lien to which the Notes are hereby made subordinate on all money or property held or collected by the Trustee, except, subject to the effect of Section 6.05, funds held in trust
herewith for the benefit of the Holders of particular Notes. The Trustee’s right to receive payment of any amounts due under this Section 7.06 shall not be subordinate to any other liability or Indebtedness of the Company. The obligation
of the Company under this Section 7.06 shall survive the satisfaction and discharge of this Indenture, the payment or conversion of the Notes and the earlier resignation or removal of the Trustee. The Company need not pay for any settlement
made without its consent, which consent shall not be unreasonably withheld. The indemnification provided in this Section 7.06 shall extend to the officers, directors, agents and employees of the Trustee. 

  
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 Without prejudice to any other rights available to the Trustee under applicable law, when
the Trustee and its agents and any authenticating agent incur expenses or render services after an Event of Default specified in Section 6.01(h) or Section 6.01(i) occurs, the expenses and the compensation for the services are intended to
constitute expenses of administration under any bankruptcy, insolvency or similar laws. 
 Section 7.07 Officer’s
Certificate as Evidence. Except as otherwise provided in Section 7.01, whenever in the administration of the provisions of this Indenture the Trustee shall deem it necessary or desirable that a matter be proved or established prior to
taking or omitting any action hereunder, such matter (unless other evidence in respect thereof be herein specifically prescribed) may, in the absence of gross negligence or willful misconduct on the part of the Trustee, be deemed to be conclusively
proved and established by an Officer’s Certificate delivered to the Trustee, and such Officer’s Certificate, in the absence of gross negligence or willful misconduct on the part of the Trustee, shall be full warrant to the Trustee for any
action taken or omitted by it under the provisions of this Indenture upon the faith thereof. 
 Section 7.08 Eligibility of
Trustee. There shall at all times be a Trustee hereunder which shall be a Person that is eligible pursuant to the Trust Indenture Act (as if the Trust Indenture Act were applicable hereto) to act as such and has a combined capital and surplus of
at least $50,000,000. If such Person publishes reports of condition at least annually, pursuant to law or to the requirements of any supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such
Person shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this Article. 
 Section 7.09 Resignation or Removal of
Trustee. (a) The Trustee may at any time resign by giving written notice of such resignation to the Company. Upon receiving such notice of resignation, the Company shall promptly notify all Holders and appoint a successor trustee by written
instrument, in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the resigning Trustee and one copy to the successor trustee. If no successor trustee shall have been so appointed and have
accepted appointment within 60 days after the giving of such notice of resignation to the Company, the resigning Trustee may, upon ten Business Days’ notice to the Company and the Holders and at the expense of the Company, petition any court of
competent jurisdiction for the appointment of a successor trustee, or any Holder who has been a bona fide holder of a Note or Notes for at least six months (or since the date of this Indenture) may, subject to the provisions of Section 6.11, on
behalf of himself or herself and all others similarly situated, petition any such court for the appointment of a successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, appoint a successor
trustee. 
 (a) In case at any time any of the following shall occur: 

(i) the Trustee shall cease to be eligible in accordance with the provisions of Section 7.09 and shall fail to resign
after written request therefor by the Company or by any such Holder, or 
 (ii) the Trustee shall become incapable of acting,
or shall be adjudged a bankrupt or insolvent, or a receiver of the Trustee or of its property shall be appointed, or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation, 

  
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 then, in either case, the Company may by a Board Resolution remove the Trustee and appoint a successor
trustee by written instrument, in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the Trustee so removed and one copy to the successor trustee, or, subject to the provisions of
Section 6.11, any Holder who has been a bona fide holder of a Note or Notes for at least six months (or since the date of this Indenture) may, on behalf of himself or herself and all others similarly situated, petition any court of competent
jurisdiction for the removal of the Trustee and the appointment of a successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, remove the Trustee and appoint a successor trustee. 

(b) The Holders of a majority in aggregate principal amount of the Notes at the time outstanding, as determined in accordance with
Section 8.04, may at any time remove the Trustee and nominate a successor trustee that shall be deemed appointed as successor trustee unless within ten days after notice to the Company of such nomination the Company objects thereto, in which
case the Trustee so removed or any Holder, upon the terms and conditions and otherwise as in Section 7.09(a) provided, may petition any court of competent jurisdiction for an appointment of a successor trustee. 

(c) Any resignation or removal of the Trustee and appointment of a successor trustee pursuant to any of the provisions of this
Section 7.10 shall become effective upon acceptance of appointment by the successor trustee as provided in Section 7.11. 

Section 7.10 Acceptance by Successor Trustee. Any successor trustee appointed as provided in Section 7.10 shall execute,
acknowledge and deliver to the Company and to its predecessor trustee an instrument accepting such appointment hereunder, and thereupon the resignation or removal of the predecessor trustee shall become effective and such successor trustee, without
any further act, deed or conveyance, shall become vested with all the rights, powers, duties and obligations of its predecessor hereunder, with like effect as if originally named as Trustee herein; but, nevertheless, on the written request of the
Company or of the successor trustee, the trustee ceasing to act shall, upon payment of any amounts then due it pursuant to the provisions of Section 7.06, execute and deliver an instrument transferring to such successor trustee all the rights
and powers of the trustee so ceasing to act. Upon request of any such successor trustee, the Company shall execute any and all instruments in writing for more fully and certainly vesting in and confirming to such successor trustee all such rights
and powers. Any trustee ceasing to act shall, nevertheless, retain a senior lien to which the Notes are hereby made subordinate on all money or property held or collected by such trustee as such, except for funds held in trust for the benefit of
Holders of particular Notes, to secure any amounts then due it pursuant to the provisions of Section 7.06. 
 No successor trustee
shall accept appointment as provided in this Section 7.11 unless at the time of such acceptance such successor trustee shall be eligible under the provisions of Section 7.09. 

Upon acceptance of appointment by a successor trustee as provided in this Section 7.11, each of the Company and the successor trustee, at
the written direction and at the expense of the Company shall deliver or cause to be delivered notice of the succession of such trustee hereunder to the Holders. If the Company fails to deliver such notice within ten days after acceptance of
appointment by the successor trustee, the successor trustee shall cause such notice to be delivered at the expense of the Company. 

  
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 Section 7.11 Succession by Merger, Etc. Any corporation or other entity into
which the Trustee may be merged or converted or with which it may be consolidated, or any corporation or other entity resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any corporation or other entity
succeeding to all or substantially all of the corporate trust business of the Trustee (including the administration of this Indenture), shall be the successor to the Trustee hereunder without the execution or filing of any paper or any further act
on the part of any of the parties hereto; provided that in the case of any corporation or other entity succeeding to all or substantially all of the corporate trust business of the Trustee such corporation or other entity shall be eligible under the
provisions of Section 7.08. 
 In case at the time such successor to the Trustee shall succeed to the trusts created by this Indenture,
any of the Notes shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee or authenticating agent appointed by such predecessor trustee, and deliver
such Notes so authenticated; and in case at that time any of the Notes shall not have been authenticated, any successor to the Trustee or an authenticating agent appointed by such successor trustee may authenticate such Notes either in the name of
any predecessor trustee hereunder or in the name of the successor trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall
have; provided, however, that the right to adopt the certificate of authentication of any predecessor trustee or to authenticate Notes in the name of any predecessor trustee shall apply only to its successor or successors by merger,
conversion or consolidation. 
 Section 7.12 Trustee’s Application for Instructions from the Company. Any
application by the Trustee for written instructions from the Company (other than with regard to any action proposed to be taken or omitted to be taken by the Trustee that affects the rights of the Holders of the Notes under this Indenture) may, at
the option of the Trustee, set forth in writing any action proposed to be taken or omitted by the Trustee under this Indenture and the date on and/or after which such action shall be taken or such omission shall be effective. The Trustee shall not
be liable to the Company for any action taken by, or omission of, the Trustee in accordance with a proposal included in such application on or after the date specified in such application (which date shall not be less than three (3) Business
Days after the date any officer that the Company has indicated to the Trustee should receive such application actually receives such application, unless any such officer shall have consented in writing to any earlier date), unless, prior to
taking any such action (or the effective date in the case of any omission), the Trustee shall have received written instructions in accordance with this Indenture in response to such application specifying the action to be taken or omitted. 

ARTICLE 8 
 CONCERNING THE HOLDERS

 Section 8.01 Action by Holders. Whenever in this Indenture it is provided that the Holders of a specified percentage of the
aggregate principal amount of the Notes may take any action (including the making of any demand or request, the giving of any notice, consent or waiver or the taking of any other action), the fact that at the time of taking any such action, the
Holders of such specified percentage have joined therein may be evidenced (a) by any instrument or any number of instruments of similar tenor executed by Holders in person or by agent or proxy appointed in writing, or (b) by the record of
the Holders voting in favor thereof at any meeting of Holders duly called and held in accordance with the provisions of Article 9, or (c) by a combination of such instrument or instruments and any such record of such a meeting of Holders.
Whenever the Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company or the Trustee may, but shall not be required to, fix in advance of such solicitation, a date as the record date for determining Holders
entitled to take such action. The record date if one is selected shall be not more than fifteen days prior to the date of commencement of solicitation of such action. 

  
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 Section 8.02 Proof of Execution by Holders. Subject to the provisions of
Section 7.01, Section 7.02 and Section 9.05, proof of the execution of any instrument by a Holder or its agent or proxy shall be sufficient if made in accordance with such reasonable rules and regulations as may be prescribed by the
Trustee or in such manner as shall be satisfactory to the Trustee. The holding of Notes shall be proved by the Note Register or by a certificate of the Note Registrar. The record of any Holders’ meeting shall be proved in the manner provided in
Section 9.06. 
 Section 8.03 Who Are Deemed Absolute Owners. The Company, the Trustee, any authenticating agent, any
Paying Agent, any Conversion Agent and any Note Registrar may deem the Person in whose name a Note shall be registered upon the Note Register to be, and may treat it as, the absolute owner of such Note (whether or not such Note shall be overdue and
notwithstanding any notation of ownership or other writing thereon made by any Person other than the Company or any Note Registrar) for the purpose of receiving payment of or on account of the principal (including any Fundamental Change Repurchase
Price) of and (subject to Section 2.03) accrued and unpaid interest on such Note, for conversion of such Note and for all other purposes; and neither the Company nor the Trustee nor any Paying Agent nor any Conversion Agent nor any Note
Registrar shall be affected by any notice to the contrary. The sole registered holder of a Global Note shall be the Depositary or its nominee. All such payments or deliveries so made to any Holder for the time being, or upon its order, shall be
valid, and, to the extent of the sums or shares of Common Stock so paid or delivered, effectual to satisfy and discharge the liability for monies payable or shares deliverable upon any such Note. Notwithstanding anything to the contrary in this
Indenture or the Notes following an Event of Default, any holder of a beneficial interest in a Global Note may directly enforce against the Company, without the consent, solicitation, proxy, authorization or any other action of the Depositary or any
other Person, such holder’s right to exchange such beneficial interest for a Note in certificated form in accordance with the provisions of this Indenture. 

Section 8.04 Company-Owned Notes Disregarded. In determining whether the Holders of the requisite aggregate principal amount of
Notes have concurred in any direction, consent, waiver or other action under this Indenture, Notes that are owned by the Company, by any Subsidiary thereof or by any Affiliate of the Company or any Subsidiary thereof shall be disregarded and deemed
not to be outstanding for the purpose of any such determination; provided that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, consent, waiver or other action only Notes that a Responsible
Officer actually knows are so owned shall be so disregarded. Notes so owned that have been pledged in good faith may be regarded as outstanding for the purposes of this Section 8.04 if the pledgee shall establish to the satisfaction of the
Trustee the pledgee’s right to so act with respect to such Notes and that the pledgee is not the Company, a Subsidiary thereof or an Affiliate of the Company or a Subsidiary thereof. In the case of a dispute as to such right, any decision by
the Trustee taken upon the advice of counsel shall be full protection to the Trustee. Upon request of the Trustee, the Company shall furnish to the Trustee promptly an Officer’s Certificate listing and identifying all Notes, if any, known by
the Company to be owned or held by or for the account of any of the above described Persons; and, subject to Section 7.01, the Trustee shall be entitled to accept such Officer’s Certificate as conclusive evidence of the facts therein set
forth and of the fact that all Notes not listed therein are outstanding for the purpose of any such determination. 
 Section 8.05
Revocation of Consents; Future Holders Bound. At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 8.01, of the taking of any action by the Holders of the percentage of the aggregate principal amount
of the Notes specified in this Indenture in connection with such action, any Holder of a Note that is shown by the evidence to be included in the Notes the Holders of which have consented to such action may, by filing written notice with the Trustee
at its Corporate Trust Office and upon proof of holding as provided in Section 8.02, revoke such action so far as concerns such Note. Except as aforesaid, any such action taken by the Holder of any Note shall be


  
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conclusive and binding upon such Holder and upon all future Holders and owners of such Note and of any Notes issued in exchange or substitution therefor or upon registration of transfer thereof,
irrespective of whether any notation in regard thereto is made upon such Note or any Note issued in exchange or substitution therefor or upon registration of transfer thereof. 

ARTICLE 9 
 HOLDERS’ MEETINGS

 Section 9.01 Purpose of Meetings. A meeting of Holders may be called at any time and from time to time pursuant to the
provisions of this Article 9 for any of the following purposes: 
 (a) to give any notice to the Company or to the Trustee or to give
any directions to the Trustee permitted under this Indenture, or to consent to the waiving of any Default or Event of Default hereunder (in each case, as permitted under this Indenture) and its consequences, or to take any other action authorized to
be taken by Holders pursuant to any of the provisions of Article 6; 
 (b) to remove the Trustee and nominate a successor trustee
pursuant to the provisions of Article 7; 
 (c) to consent to the execution of an indenture or indentures supplemental hereto pursuant
to the provisions of Section 10.02; or 
 (d) to take any other action authorized to be taken by or on behalf of the Holders of any
specified aggregate principal amount of the Notes under any other provision of this Indenture or under applicable law. 
 Section 9.02
Call of Meetings by Trustee. The Trustee may at any time call a meeting of Holders to take any action specified in Section 9.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of the
Holders, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting and the establishment of any record date pursuant to Section 8.01, shall be delivered to Holders of such Notes.
Such notice shall also be delivered to the Company. Such notices shall be delivered not less than 20 nor more than 90 days prior to the date fixed for the meeting. 

Any meeting of Holders shall be valid without notice if the Holders of all Notes then outstanding are present in person or by proxy or if
notice is waived before or after the meeting by the Holders of all Notes then outstanding, and if the Company and the Trustee are either present by duly authorized representatives or have, before or after the meeting, waived notice. 

Section 9.03 Call of Meetings by Company or Holders. In case at any time the Company, pursuant to a Board Resolution, or the
Holders of at least 10% of the aggregate principal amount of the Notes then outstanding, shall have requested the Trustee to call a meeting of Holders, by written request setting forth in reasonable detail the action proposed to be taken at the
meeting, and the Trustee shall not have delivered the notice of such meeting within 20 days after receipt of such request, then the Company or such Holders may determine the time and the place for such meeting and may call such meeting to take any
action authorized in Section 9.01, by delivering notice thereof as provided in Section 9.02. 
 Section 9.04
Qualifications for Voting. To be entitled to vote at any meeting of Holders a Person shall (a) be a Holder of one or more Notes on the record date pertaining to such meeting or (b) be a Person appointed by an instrument in writing
as proxy by a Holder of one or more Notes on the record date pertaining to such meeting. The only Persons who shall be entitled to be present or to speak at any meeting of Holders shall be the Persons entitled to vote at such meeting and their
counsel and any representatives of the Trustee and its counsel and any representatives of the Company and its counsel. 

  
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 Section 9.05 Regulations. Notwithstanding any other provisions of this
Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders, in regard to proof of the holding of Notes and of the appointment of proxies, and in regard to the appointment and duties of inspectors
of votes, the submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it shall think fit. 

The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders as provided in Section 9.03, in which case the Company or the Holders calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the
meeting shall be elected by vote of the Holders of a majority in aggregate principal amount of the Notes represented at the meeting and entitled to vote at the meeting. 

Subject to the provisions of Section 8.04, at any meeting of Holders each Holder or proxyholder shall be entitled to one vote for each
$1,000 principal amount of Notes held or represented by him or her; provided, however, that no vote shall be cast or counted at any meeting in respect of any Note challenged as not outstanding and ruled by the chairman of the meeting
to be not outstanding. The chairman of the meeting shall have no right to vote other than by virtue of Notes held by it or instruments in writing as aforesaid duly designating it as the proxy to vote on behalf of other Holders. Any meeting of
Holders duly called pursuant to the provisions of Section 9.02 or Section 9.03 may be adjourned from time to time by the Holders of a majority of the aggregate principal amount of Notes represented at the meeting, whether or not
constituting a quorum, and the meeting may be held as so adjourned without further notice. 
 Section 9.06 Voting. The vote upon
any resolution submitted to any meeting of Holders shall be by written ballot on which shall be subscribed the signatures of the Holders or of their representatives by proxy and the outstanding aggregate principal amount of the Notes held or
represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their verified
written reports in duplicate of all votes cast at the meeting. A record in duplicate of the proceedings of each meeting of Holders shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of
the inspectors of votes on any vote by ballot taken thereat and affidavits by one or more Persons having knowledge of the facts setting forth a copy of the notice of the meeting and showing that said notice was delivered as provided in
Section 9.02. The record shall show the aggregate principal amount of the Notes voting in favor of or against any resolution. The record shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and
one of the duplicates shall be delivered to the Company and the other to the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting. 

Any record so signed and verified shall be conclusive evidence of the matters therein stated. 

Section 9.07 No Delay of Rights by Meeting. Nothing contained in this Article 9 shall be deemed or construed to authorize or
permit, by reason of any call of a meeting of Holders or any rights expressly or impliedly conferred hereunder to make such call, any hindrance or delay in the exercise of any right or rights conferred upon or reserved to the Trustee or to the
Holders under any of the provisions of this Indenture or of the Notes. 

  
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 ARTICLE 10 

SUPPLEMENTAL INDENTURES 

Section 10.01 Supplemental Indentures Without Consent of Holders. Without the consent of any Holder, the Company, when authorized
by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time amend or supplement this Indenture or the Notes for one or more of the following purposes: 

(a) to cure any ambiguity, omission, defect or inconsistency; 

(b) to provide for the assumption by a Successor Company of the obligations of the Company under this Indenture pursuant to Article 11;

 (c) to add guarantees with respect to the Notes; 

(d) to secure the Notes; 
 (e) to
add to the covenants or Events of Default of the Company for the benefit of the Holders or surrender any right or power conferred upon the Company; 

(f) to make any change that, as certified in good faith by the Company in an Officer’s Certificate, does not materially adversely affect
the rights of any Holder; 
 (g) in connection with any Share Exchange Event, to provide that the notes are convertible into Reference
Property, subject to the provisions of Section 14.02, and make such related changes to the terms of the Notes to the extent expressly required by Section 14.07; 

(h) comply with any requirement of the Commission in connection with the qualification of this Indenture under the Trust Indenture Act to the
extent this Indenture is qualified thereunder; 
 (i) [reserved]; 

(j) provide for the appointment of a successor Trustee, Note Registrar, Paying Agent or Conversion Agent; 

(k) comply with the rules of any applicable securities depositary in a manner that does not adversely affect the rights of any Holder; 

(l) [reserved]; 
 (m) increase the
Conversion Rate as provided in this Indenture or 
 (n) to make any change to comply with rules of the Depositary, so long as such change
does not adversely affect the rights of any Holder, as certified in good faith by the Company in an Officer’s Certificate. 
 Upon the
written request of the Company and subject to Section 10.05, the Trustee is hereby authorized to, and shall, join with the Company in the execution of any such supplemental indenture, to make any further appropriate agreements and stipulations
that may be therein contained, but the Trustee shall not be obligated to, but may in its discretion, enter into any supplemental indenture that affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise. 

  
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 Any supplemental indenture authorized by the provisions of this Section 10.01 may be
executed by the Company and the Trustee without the consent of the Holders of any of the Notes at the time outstanding, notwithstanding any of the provisions of Section 10.02. 

Section 10.02 Supplemental Indentures with Consent of Holders. With the consent (evidenced as provided in Article 8) of the
Holders of at least a majority of the aggregate principal amount of the Notes then outstanding (determined in accordance with Article 8 and including, without limitation, consents obtained in connection with a repurchase of, or tender or
exchange offer for, Notes), the Company, when authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time enter into an indenture or indentures supplemental hereto for
the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture, any supplemental indenture or the Notes or of modifying in any manner the rights of the Holders; 

provided, however, that, without the consent of each Holder of an outstanding Note affected, no such supplemental indenture shall: 

(a) reduce the principal amount of Notes whose Holders must consent to an amendment; 

(b) reduce the rate of or extend the stated time for payment of interest on any Note; 

(c) reduce the principal of or extend the Maturity Date of any Note; 

(d) make any change that adversely affects the conversion rights of any Notes other than as permitted or required by this Indenture; 

(e) reduce the Fundamental Change Repurchase Price of any Note or amend or modify in any manner adverse to the Holders the Company’s
obligation to make such payments, whether through an amendment or waiver of provisions in the covenants, definitions or otherwise; 
 (f)
make any Note payable in a currency, or at a place of payment, other than that stated in the Note; 
 (g) change the ranking of the Notes;

 (h) impair the right of any Holder to institute suit for the enforcement right to receive payment or delivery, as the case may be, of the
principal (including the Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest, if any, on, and the consideration due upon conversion of, its Notes, on or after the respective due dates expressed or provided for in the
Notes or this Indenture; 
 (i) make any change in this Article 10 that requires each Holder’s consent or in the waiver provisions
in Section 6.02 or Section 6.09; or 
 (j) provide for the issuance of additional Notes. 

Upon the written request of the Company, and upon the delivery to the Trustee of evidence of the consent of Holders as aforesaid and subject
to Section 10.05, the Trustee shall join with the Company in the execution of such supplemental indenture unless such supplemental indenture affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which
case the Trustee may in its discretion, but shall not be obligated to, enter into such supplemental indenture. 

  
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 Holders do not need under this Section 10.02 to approve the particular form of any
proposed supplemental indenture. It shall be sufficient if such Holders approve the substance thereof. After any such supplemental indenture becomes effective, the Company shall deliver to the Holders a notice briefly describing such supplemental
indenture. However, the failure to give such notice to all the Holders, or any defect in the notice, will not impair or affect the validity of the supplemental indenture. 

Section 10.03 Effect of Supplemental Indentures. Upon the execution of any supplemental indenture pursuant to the provisions of
this Article 10, this Indenture shall be and be deemed to be modified and amended in accordance therewith and the respective rights, limitation of rights, obligations, duties and immunities under this Indenture of the Trustee, the Company and
the Holders shall thereafter be determined, exercised and enforced hereunder subject in all respects to such modifications and amendments and all the terms and conditions of any such supplemental indenture shall be and be deemed to be part of the
terms and conditions of this Indenture for any and all purposes. 
 Section 10.04 Notation on Notes. Notes authenticated and
delivered after the execution of any supplemental indenture pursuant to the provisions of this Article 10 may, at the Company’s expense, bear a notation as to any matter provided for in such supplemental indenture. If the Company or the
Trustee shall so determine, new Notes so modified as to conform, in the opinion of the Board of Directors, to any modification of this Indenture contained in any such supplemental indenture may, at the Company’s expense, be prepared and
executed by the Company, authenticated, upon receipt of a Company Order, by the Trustee (or an authenticating agent duly appointed by the Trustee pursuant to Section 17.10) and delivered in exchange for the Notes then outstanding, upon
surrender of such Notes then outstanding. 
 Section 10.05 Evidence of Compliance of Supplemental Indenture to Be Furnished
Trustee. In addition to the documents required by Section 17.05, the Trustee shall receive an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with
the requirements of this Article 10 and is permitted or authorized by this Indenture and such Opinion of Counsel shall include a customary legal opinion stating that such supplemental indenture is the valid and binding obligation of the
Company, subject to customary exceptions and qualifications. 
 ARTICLE 11 

CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE 

Section 11.01 Company May Consolidate, Etc. on Certain Terms. Subject to the provisions of Section 11.02, the Company shall
not consolidate with, merge with or into, or sell, convey, transfer or lease all or substantially all of the consolidated assets of the Company and the Company’s Subsidiaries, taken as a whole, to another Person, unless: 

(a) the resulting, surviving or transferee Person (the “Successor Company”), if not the Company, shall be a corporation
organized and existing under the laws of the United States of America, any State thereof or the District of Columbia, and the Successor Company (if not the Company) shall expressly assume, by supplemental indenture all of the obligations of the
Company under the Notes and this Indenture; 
 (b) immediately after giving effect to such transaction, no Default or Event of Default shall
have occurred and be continuing under this Indenture; and 

  
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 (c) if the Company is not the Successor Company, the Successor Company shall have delivered
to the Trustee an Officer’s Certificate and Opinion of Counsel, each stating that such consolidation, merger, sale, conveyance, transfer or lease complies with this Indenture and that such supplemental indenture is authorized or permitted by
this Indenture and an Opinion of Counsel stating that the supplemental indenture is the valid and binding obligation of the Successor Company, subject to customary exceptions and qualifications. 

Section 11.02 Successor Corporation to Be Substituted. In case of any such consolidation, merger, sale, conveyance, transfer or
lease and upon the assumption by the Successor Company (if other than the Company), by supplemental indenture, executed and delivered to the Trustee and satisfactory in form to the Trustee, of the due and punctual payment of the principal of and
accrued and unpaid interest on all of the Notes, the due and punctual delivery and/or payment, as the case may be, of any consideration due upon conversion of the Notes and the due and punctual performance of all of the covenants and conditions of
this Indenture to be performed by the Company, such Successor Company (if not the Company) shall succeed to and, except in the case of a lease of all or substantially all of the consolidated assets of the Company and the Company’s Subsidiaries,
taken as a whole, shall be substituted for the Company, with the same effect as if it had been named herein as the party of the first part, and the Company shall be discharged from its obligations under the Notes and this Indenture (except in the
case of a lease of all or substantially all of the consolidated assets of the Company and the Company’s Subsidiaries, taken as a whole). Such Successor Company thereupon may cause to be signed, and may issue either in its own name or in the
name of the Company any or all of the Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon the order of such Successor Company instead of the Company and subject to all the
terms, conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be authenticated and delivered, any Notes that previously shall have been signed and delivered by the Officers of the
Company to the Trustee for authentication, and any Notes that such Successor Company thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Notes so issued shall in all respects have the same legal rank and
benefit under this Indenture as the Notes theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such Notes had been issued at the date of the execution hereof. In the event of any such consolidation,
merger, sale, conveyance or transfer (but not in the case of a lease), upon compliance with this Article 11 the Person named as the “Company” in the first paragraph of this Indenture (or any successor that shall thereafter have
become such in the manner prescribed in this Article 11) may be dissolved, wound up and liquidated at any time thereafter and, except in the case of a lease, such Person shall be released from its liabilities as obligor and maker of the Notes
and from its obligations under this Indenture and the Notes. 
 In case of any such consolidation, merger, sale, conveyance, transfer or
lease, such changes in phraseology and form (but not in substance) may be made in the Notes thereafter to be issued as may be appropriate. 

Section 11.03 Opinion of Counsel to Be Given to Trustee. If a supplemental indenture is required pursuant to this Article 11,
no such consolidation, merger, sale, conveyance, transfer or lease shall be effective unless the Trustee shall receive an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any such consolidation, merger, sale,
conveyance, transfer or lease and any such assumption complies with the provisions of this Article 11. 

  
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 ARTICLE 12 

IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS 

Section 12.01 Indenture and Notes Solely Corporate Obligations. No recourse for the payment of the principal of or accrued and
unpaid interest on, or the payment or delivery of consideration due upon conversion of, any Note, nor for any claim based thereon or otherwise in respect thereof, and no recourse under or upon any obligation, covenant or agreement of the Company in
this Indenture or in any supplemental indenture or in any Note, nor because of the creation of any Indebtedness represented thereby, shall be had against any incorporator, stockholder, employee, agent, Officer or director or Subsidiary, as such,
past, present or future, of the Company or of any successor corporation, either directly or through the Company or any successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or
penalty or otherwise; it being expressly understood that all such liability is hereby expressly waived and released as a condition of, and as a consideration for, the execution of this Indenture and the issue of the Notes. 

ARTICLE 13 
 [INTENTIONALLY
OMITTED] 
 ARTICLE 14 

CONVERSION OF NOTES 

Section 14.01 Conversion Privilege. Subject to and upon compliance with the provisions of this Article 14, each Holder of a
Note shall have the right, at such Holder’s option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or an integral multiple thereof) of such Note at any time prior to the close of business on the second
Scheduled Trading Day immediately preceding the Maturity Date, at an initial conversion rate of 86.9565 shares of Common Stock (subject to adjustment as provided in this Article 14, the “Conversion Rate”) per $1,000 principal
amount of Notes (subject to, and in accordance with, the settlement provisions of Section 14.02, the “Conversion Obligation”). 

Section 14.02 Conversion Procedure; Settlement Upon Conversion. 

(a) Subject to this Section 14.02 and Section 14.07(a), upon conversion of any Note, the Company shall pay or deliver, as the case
may be, to the converting Holder no later than two (2) Trading Days following the applicable conversion of the Notes, in respect of each $1,000 principal amount of Notes being converted, shares of Common Stock, together with cash, if
applicable, in lieu of delivering any fractional share of Common Stock in accordance with subsection (j) of this Section 14.02 (“Physical Settlement”) as set forth in this Section 14.02. The Company shall use the
Physical Settlement Method for all conversions. 
 (i) The shares of Common Stock in respect of any conversion of Notes (the
“Settlement Amount”) shall be computed as follows: (A) the Company shall deliver to the converting Holder in respect of each $1,000 principal amount of Notes being converted a number of shares of Common Stock equal to the
Conversion Rate in effect on the Conversion Date (plus cash in lieu of any fractional share of Common Stock issuable upon conversion) plus (B)(x) if the average of the Daily VWAPs for the 10 Trading Days immediately preceding the Conversion Date
(the “Average VWAP”) equals or exceeds $11.50 per share, the Company shall, in its sole discretion, deliver to the Holder the Interest Make-Whole Amount for such conversion in the form of cash or a number of shares of Common Stock
determined by dividing the Interest Make-Whole Amount by the Average Price VWAP and delivering cash in lieu of fractional shares or (y) if the Average VWAP is less than $11.50 per share, the Company shall deliver to the Holder the Interest
Make-Whole Amount for such conversion solely in the form of cash. 
 (b) Subject to Section 14.02(e), before any Holder of a Note shall
be entitled to convert a Note as set forth above, such Holder shall (i) in the case of a Global Note, comply with the procedures of the Depositary in effect at that time and, if required, pay funds equal to the interest payable on the next
Interest Payment Date to which such Holder is not entitled as set forth in Section 14.02(h) and, if 

  
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required, pay all transfer or similar taxes, if any, pursuant to Section 14.02(e) and (ii) in the case of a Physical Note (1) complete, manually sign and deliver an irrevocable
notice to the Conversion Agent as set forth in the Form of Notice of Conversion (or a facsimile thereof) (a “Notice of Conversion”) at the office of the Conversion Agent and state in writing therein the principal amount of Notes to
be converted and the name or names (with addresses) in which such Holder wishes the certificate or certificates for any shares of Common Stock to be delivered upon settlement of the Conversion Obligation to be registered, (2) surrender such
Notes, duly endorsed to the Company or in blank (and accompanied by appropriate endorsement and transfer documents), at the office of the Conversion Agent, (3) if required, furnish appropriate endorsements and transfer documents, (4) if
required, pay funds equal to interest payable on the next Interest Payment Date to which such Holder is not entitled as set forth in Section 14.02(h) and (5) if required, pay all transfer or similar taxes, if any, pursuant to
Section 14.02(e). The Trustee (and if different, the Conversion Agent) shall notify the Company of any conversion pursuant to this Article 14 on the Conversion Date for such conversion. No Notice of Conversion with respect to any Notes may
be surrendered by a Holder thereof if such Holder has also delivered a Fundamental Change Repurchase Notice to the Company in respect of such Notes and has not validly withdrawn such Fundamental Change Repurchase Notice in accordance with
Section 15.03. Notwithstanding anything to the contrary contained herein, to the extent that an indirect holder of a Global Note held indirectly through a participant submits irrevocable instructions to convert any portion of such Note, such
Holder shall be deemed for purposes of Regulation SHO to have converted the applicable portion of such Note at the time of delivery of such instructions, regardless of when shares of Common Stock are delivered to such Holder or its participant. 

If more than one Note shall be surrendered for conversion at one time by the same Holder, the Conversion Obligation with respect to such Notes
shall be computed on the basis of the aggregate principal amount of the Notes (or specified portions thereof to the extent permitted thereby) so surrendered. 

(c) A Note shall be deemed to have been converted immediately prior to the close of business on the date (the “Conversion
Date”) that the Holder has complied with the requirements set forth in subsection (b) above. Except as set forth in Section 14.07(a), the Company shall pay or deliver, as the case may be, the consideration due in respect of the
Conversion Obligation on the second Business Day immediately following the relevant Conversion Date. Notwithstanding the foregoing, with respect to the Company’s satisfaction of its Conversion Obligation through Physical Settlement for which
the relevant Conversion Date occurs after the Regular Record Date immediately preceding the Maturity Date, the settlement shall occur on the Maturity Date. If any shares of Common Stock are due to a converting Holder, the Company shall issue or
cause to be issued, and deliver (if applicable) to the Conversion Agent or to such Holder, or such Holder’s nominee or nominees, the full number of shares of Common Stock to which such Holder shall be entitled, in book-entry format through the
Depositary, in satisfaction of the Company’s Conversion Obligation. 
 (d) In case any Note shall be surrendered for partial conversion,
the Company shall execute and the Trustee shall authenticate and deliver to or upon the written order of the Holder of the Note so surrendered a new Note or Notes in authorized denominations in an aggregate principal amount equal to the unconverted
portion of the surrendered Note, without payment of any service charge by the converting Holder but, if required by the Company or Trustee, with payment of a sum sufficient to cover any documentary, stamp or similar issue or transfer tax or similar
governmental charge required by law or that may be imposed in connection therewith as a result of the name of the Holder of the new Notes issued upon such conversion being different from the name of the Holder of the old Notes surrendered for such
conversion. 

  
 52 













 (e) If a Holder submits a Note for conversion, the Company shall pay any documentary, stamp
or similar issue or transfer tax due on the issue of any shares of Common Stock upon conversion, unless the tax is due because the Holder requests such shares to be issued in a name other than the Holder’s name, in which case the Holder shall
pay that tax. The Conversion Agent may refuse to deliver the certificates representing the shares of Common Stock being issued in a name other than the Holder’s name until the Trustee receives a sum sufficient to pay any tax that is due by such
Holder in accordance with the immediately preceding sentence. 
 (f) Except as provided in Section 14.04, no adjustment shall be made
for dividends on any shares of Common Stock issued upon the conversion of any Note as provided in this Article 14. 
 (g) Upon the
conversion of an interest in a Global Note, the Trustee, or the Custodian at the direction of the Trustee, shall make a notation on such Global Note as to the reduction in the principal amount represented thereby. The Company shall notify the
Trustee in writing of any conversion of Notes effected through any Conversion Agent other than the Trustee. 
 (h) Upon conversion, a Holder
shall not receive any separate cash payment for accrued and unpaid interest, if any, except as set forth below. The Company’s settlement of the full Conversion Obligation shall be deemed to satisfy in full its obligation to pay the principal
amount of the Note and accrued and unpaid interest, if any, to, but excluding, the relevant Conversion Date. As a result, accrued and unpaid interest, if any, to, but excluding, the relevant Conversion Date shall be deemed to be paid in full rather
than cancelled, extinguished or forfeited. Upon a conversion of Notes into shares of Common Stock, accrued and unpaid interest will be deemed to be paid first out of the cash paid upon such conversion. Notwithstanding the foregoing, if Notes are
converted after the close of business on a Regular Record Date but prior to the open of business on the immediately following Interest Payment Date, Holders of such Notes as of the close of business on such Regular Record Date will receive the full
amount of interest payable on such Notes on such Interest Payment Date notwithstanding the conversion. However, Notes surrendered for conversion during the period from the close of business on any Regular Record Date to the open of business on the
immediately following Interest Payment Date must be accompanied by funds equal to the amount of interest payable on the Notes so converted on the corresponding Interest Payment Date (regardless of whether the converting Holder was the Holder of
record on the corresponding Regular Record Date); provided that no such payment shall be required (1) for conversions following the close of business on the Regular Record Date immediately preceding the Maturity Date; (2) if the
Company has specified a Fundamental Change Repurchase Date that is after a Regular Record Date and on or prior to the Business Day immediately following the corresponding Interest Payment Date and a conversion occurs after such Regular Record Date
and on or prior to the open of business on such Interest Payment Date; or (3) to the extent of any Defaulted Amounts, if any Defaulted Amounts exist at the time of conversion with respect to such Note. Therefore, for the avoidance of doubt, all
Holders of record on the Regular Record Date immediately preceding the Maturity Date and any Fundamental Change Repurchase Date described in clause (2) above shall receive the full interest payment due on the Maturity Date or other applicable
Interest Payment Date in cash regardless of whether their Notes have been converted and/or repurchased, as applicable, following such Regular Record Date. 

(i) The Person in whose name the shares of Common Stock shall be issuable upon conversion shall be treated as a stockholder of record as of the
close of business on the relevant Conversion Date. Upon a conversion of Notes, such Person shall no longer be a Holder of such Notes surrendered for conversion. 

(j) The Company shall not issue any fractional share of Common Stock upon conversion of the Notes and shall instead pay cash in lieu of
delivering any fractional share of Common Stock issuable upon conversion based on the Daily VWAP for the relevant Conversion Date. 

  
 53 













 Section 14.03 Company’s Mandatory Conversion Option. 

(a) On or after [                ], 2022 and prior to the close
of business on the second Scheduled Trading Day immediately preceding the Maturity Date, the Company may, at its option, elect to convert the Original Principal Amount of the Notes in whole but not in part (x) if the Last Reported Sale Price of
the Common Stock for at least 20 Trading Days (whether or not consecutive) during the period of 30 consecutive Trading Days ending on, and including, the last Trading Day of the immediately preceding calendar quarter is greater than or equal to 120%
of the Conversion Price on each applicable Trading Day and (y) if the 30-Day ADTV ending on, and including, the last Trading Day of the applicable exercise period is greater than or equal to $3,000,000
(the “Company Mandatory Conversion Condition”). 
 (b) To exercise the Company Mandatory Conversion Right, the Company will
send notice of the Company’s election (a “Mandatory Conversion Notice”) to Holders, the Trustee and the Conversion Agent no later than the fifth (5th) Business Day after the last VWAP Trading Day of such 30 consecutive VWAP
Trading Day period. 
 Such Mandatory Conversion Notice must state: 

(i) that the Notes have been called for Mandatory Conversion, briefly describing the Company Mandatory Conversion Right under this Indenture;

 (ii) the Mandatory Conversion Date; 

(iii) the current Conversion Rate; 

(iv) the Interest Make-Whole amount; 

(v) the name and address of the Paying Agent and the Conversion Agent; and 

(vi) the CUSIP and ISIN numbers, if any, of the Notes 

(c) If the Company exercises the Company Mandatory Conversion Right in accordance with this Section 14.03, then a Conversion Date will
automatically, and without the need for any action on the part of any Holder, the Trustee or the Conversion Agent, be deemed to occur, with respect to each Note then outstanding, on the Mandatory Conversion Date. The Mandatory Conversion Date
will be a Business Day of the Company’s choosing that is no more than thirty (30), nor less than ten (10), Business Days after the Company sends the Mandatory Conversion Notice. 

(d) Each share of Common Stock delivered upon a Mandatory Conversion of any Note will be a newly issued or treasury share and will be duly and
validly issued, fully paid, non-assessable, free from preemptive rights and free of any lien or adverse claim. If the Common Stock is then listed on any securities exchange, or quoted on any inter-dealer
quotation system, and has been registered on an effective registration statement with the Commission, then the Company will cause each shares of Common Stock, when delivered upon a Mandatory Conversion of any Note, to be admitted for listing on such
exchange or quotation on such system. Notwithstanding anything herein to the contrary, the Company shall not be permitted to effect any Company Mandatory Conversion hereunder unless as of such Mandatory Conversion Date no Equity Conditions Failure
then exists. 

  
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 Section 14.04 Adjustment of Conversion Rate. The Conversion Rate shall be
adjusted from time to time by the Company if any of the following events occurs, except that the Company shall not make any adjustments to the Conversion Rate if Holders of the Notes participate (other than in the case of (x) a share split or
share combination or (y) a tender or exchange offer), at the same time and upon the same terms as holders of the Common Stock and solely as a result of holding the Notes, in any of the transactions described in this Section 14.04, without
having to convert their Notes, as if they held a number of shares of Common Stock equal to the Conversion Rate, multiplied by the principal amount (expressed in thousands) of Notes held by such Holder. 

(a) If the Company exclusively issues shares of Common Stock as a dividend or distribution on shares of the Common Stock, or if the Company
effects a share split or share combination, the Conversion Rate shall be adjusted based on the following formula: 
  
 



 
 where, 
  

	CR0 =	 the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date of such dividend or distribution, or immediately prior to the open of business on the Effective Date of such share split or share combination, as applicable; 



 

	CR’ =	 the Conversion Rate in effect immediately after the open of business on such
Ex-Dividend Date or Effective Date, as applicable; 


  

	OS0 =	 the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-Dividend Date or Effective Date, as applicable, before giving effect to such dividend, distribution, share split or share combination; and 



 

	OS’ =	 the number of shares of Common Stock outstanding immediately after giving effect to such dividend,
distribution, share split or share combination. 


 Any adjustment made under this Section 14.04(a) shall become effective immediately
after the open of business on the Ex-Dividend Date for such dividend or distribution, or immediately after the open of business on the Effective Date for such share split or share combination, as applicable.
If any dividend or distribution of the type described in this Section 14.04(a) is declared but not so paid or made, the Conversion Rate shall be immediately readjusted, effective as of the date the Board of Directors determines not to pay such
dividend or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared. 
 (b)
If the Company issues to all or substantially all holders of the Common Stock any rights, options or warrants (other than pursuant to a stockholders rights plan) entitling them, for a period of not more than 45 calendar days after the announcement
date of such issuance, to subscribe for or purchase shares of the Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and
including, the Trading Day immediately preceding the date of announcement of such issuance, the Conversion Rate shall be increased based on the following formula: 
  





 

  
 55 













 where, 
  

	CR0  =	 the Conversion Rate in effect immediately prior to the open of business on the
Ex-Dividend Date for such issuance; 


  

	CR’  =	 the Conversion Rate in effect immediately after the open of business on such
Ex-Dividend Date; 


  

	OS0  =	 the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-Dividend Date; 


  

	X     =	 the total number of shares of Common Stock issuable pursuant to such rights, options or warrants; and



  

	Y     =	 the number of shares of Common Stock equal to the aggregate price payable to exercise such rights, options or
warrants, divided by the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement of the issuance of such
rights, options or warrants. 


 Any increase made under this Section 14.04(b) shall be made successively whenever any such rights,
options or warrants are issued and shall become effective immediately after the open of business on the Ex-Dividend Date for such issuance. To the extent that shares of the Common Stock are not delivered after
the expiration of such rights, options or warrants, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect had the increase with respect to the issuance of such rights, options or warrants been made on the basis
of delivery of only the number of shares of Common Stock actually delivered. If such rights, options or warrants are not so issued, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect if such Ex-Dividend Date for such issuance had not occurred. 
 For purposes of this Section 14.04(b), in
determining whether any rights, options or warrants entitle the holders to subscribe for or purchase shares of the Common Stock at a price per share that is less than such average of the Last Reported Sale Prices of the Common Stock for the 10
consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into
account any consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors. 

(c) If the Company distributes shares of its Capital Stock, evidences of its Indebtedness, other assets or property of the Company or rights,
options or warrants to acquire its Capital Stock or other securities, to all or substantially all holders of the Common Stock, excluding (i) dividends, distributions or issuances (including share splits) as to which an adjustment was effected
pursuant to Section 14.04(a), Section 14.04(b) or Section 14.04(e), (ii) except as otherwise described in Section 14.11, rights issued pursuant to any stockholders rights plan of the Company then in effect, (iii)dividends or
distributions paid exclusively in cash as to which the provisions set forth in Section 14.04(d) shall apply, (iv) dividends or distributions of Reference Property in exchange for or upon conversion of the Common Stock in a Share Exchange
Event, and (v) Spin-Offs as to which the provisions set forth below in this Section 14.04(c) shall apply (any of such shares of Capital Stock, evidences of Indebtedness, other assets or property or rights, options or warrants to acquire
Capital Stock or other securities, the “Distributed Property”), then the Conversion Rate shall be increased based on the following formula: 

  
 56 













 



 
 where, 
  

					
	CR0	 	=	 	the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such distribution;
			
	CR’	 	=	 	the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;
			
	SP0	 	=	 	the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date
for such distribution; and
			
	FMV	 	=	 	the fair market value (as determined by the Board of Directors) of the Distributed Property with respect to each outstanding share of the Common Stock on the Ex-Dividend Date for such
distribution.

 Any increase made under the portion of this Section 14.04(c) above shall become effective immediately after the open of
business on the Ex-Dividend Date for such distribution. If such distribution is not so paid or made, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect if such
distribution had not been declared. If the Company issues rights, options or warrants to acquire Capital Stock or other securities that are exercisable only upon the occurrence of certain triggering events, the Company shall not adjust the
conversion rate pursuant to the clauses above until the earliest of these triggering events occurs. Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater than “SP0” (as defined above), in
lieu of the foregoing increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same terms as holders of the Common Stock receive the Distributed Property, the amount and kind of
Distributed Property such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend
Date for the distribution. If the Board of Directors determines the “FMV” (as defined above) of any distribution for purposes of this Section 14.04(c) by reference to the actual or when-issued trading market for any securities,
it shall in doing so consider the prices in such market over the same period used in computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately
preceding the Ex-Dividend Date for such distribution. 
 With respect to an adjustment pursuant to
this Section 14.04(c) where there has been a payment of a dividend or other distribution on the Common Stock of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary or other business unit of
the Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national securities exchange (a “Spin-Off”), the Conversion Rate shall be increased based on the
following formula: 
  
 



 
 where, 
 CR0 = the Conversion Rate in effect immediately prior to the end of the Valuation Period; 

  
 57 














					
	CR’	 	=	 	 the Conversion Rate in effect immediately after the end of the Valuation Period;

			
	FMV0	 	=	 	 the average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to holders of the Common Stock
applicable to one share of the Common Stock (determined by reference to the definition of Last Reported Sale Price as set forth in Section 1.01 as if references therein to Common Stock were to such Capital Stock or similar equity interest) over
the first 10 consecutive Trading Day period after, and including, the Ex-Dividend Date of the Spin-Off (the “Valuation Period”); and

			
	MP0	 	=	 	 the average of the Last Reported Sale Prices of the Common Stock over the Valuation Period.


 The increase to the Conversion Rate under the preceding paragraph shall occur at the close of business on the
last Trading Day of the Valuation Period; provided that if the relevant Conversion Date occurs during the Valuation Period, references to “10” in the preceding paragraph shall be deemed to be replaced with such lesser number of
Trading Days as have elapsed between the Ex-Dividend Date of such Spin-Off and the Conversion Date in determining the Conversion Rate. If any dividend or distribution
that constitutes a Spin-Off is declared but not so paid or made, the Conversion Rate shall be immediately decreased, effective as of the date the Board of Directors determines not to pay or make such dividend
or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared or announced. 

For purposes of this Section 14.04(c) (and subject in all respect to Section 14.11), rights, options or warrants distributed by the
Company to all holders of the Common Stock entitling them to subscribe for or purchase shares of the Company’s Capital Stock, including Common Stock (either initially or under certain circumstances), which rights, options or warrants, until the
occurrence of a specified event or events (“Trigger Event”): (i) are deemed to be transferred with such shares of the Common Stock; (ii) are not exercisable; and (iii) are also issued in respect of future issuances of the
Common Stock, shall be deemed not to have been distributed for purposes of this Section 14.04(c) (and no adjustment to the Conversion Rate under this Section 14.04(c) will be required) until the occurrence of the earliest Trigger Event,
whereupon such rights, options or warrants shall be deemed to have been distributed and an appropriate adjustment (if any is required) to the Conversion Rate shall be made under this Section 14.04(c). If any such right, option or warrant,
including any such existing rights, options or warrants distributed prior to the date of this Indenture, are subject to events, upon the occurrence of which such rights, options or warrants become exercisable to purchase different securities,
evidences of Indebtedness or other assets, then the date of the occurrence of any and each such event shall be deemed to be the date of distribution and Ex-Dividend Date with respect to new rights, options or
warrants with such rights (in which case the existing rights, options or warrants shall be deemed to terminate and expire on such date without exercise by any of the holders thereof). In addition, in the event of any distribution (or deemed
distribution) of rights, options or warrants, or any Trigger Event or other event (of the type described in the immediately preceding sentence) with respect thereto that was counted for purposes of calculating a distribution amount for which an
adjustment to the Conversion Rate under this Section 14.04(c) was made, (1) in the case of any such rights, options or warrants that shall all have been redeemed or purchased without exercise by any holders thereof, upon such final
redemption or purchase (x) the Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued and the Conversion Rate shall then again be readjusted to give effect to such distribution, deemed distribution or
Trigger Event, as the case may be, as though it were a cash distribution, equal to the per share redemption or purchase price received by a holder or holders of Common Stock with respect to such rights, options or warrants (assuming such holder had
retained such rights, options or warrants), made to all holders of Common Stock as of the date of such redemption or purchase, and (2) in the case of such rights, options or warrants that shall have expired or been terminated without exercise
by any holders thereof, the Conversion Rate shall be readjusted as if such rights, options and warrants had not been issued. 

  
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 For purposes of Section 14.04(a), Section 14.04(b) and this Section 14.04(c),
if any dividend or distribution to which this Section 14.04(c) is applicable also includes one or both of: 
 (A) a dividend or
distribution of shares of Common Stock to which Section 14.04(a) is applicable (the “Clause A Distribution”); or 
 (B)
a dividend or distribution of rights, options or warrants to which Section 14.04(b) is applicable (the “Clause B Distribution”), 

then, in either case, (1) such dividend or distribution, other than the Clause A Distribution and the Clause B Distribution, shall be deemed to be a
dividend or distribution to which this Section 14.04(c) is applicable (the “Clause C Distribution”) and any Conversion Rate adjustment required by this Section 14.04(c) with respect to such Clause C Distribution shall then
be made, and (2) the Clause A Distribution and Clause B Distribution shall be deemed to immediately follow the Clause C Distribution and any Conversion Rate adjustment required by Section 14.04(a) and Section 14.04(b) with respect
thereto shall then be made, except that, if determined by the Company (I) the “Ex-Dividend Date” of the Clause A Distribution and the Clause B Distribution shall be deemed to be the Ex-Dividend Date of the Clause C Distribution and (II) any shares of Common Stock included in the Clause A Distribution or Clause B Distribution shall be deemed not to be “outstanding immediately prior to
the open of business on such Ex-Dividend Date or Effective Date” within the meaning of Section 14.04(a) or “outstanding immediately prior to the open of business on such Ex-Dividend Date” within the meaning of Section 14.04(b). 
 (d) If the Company pays or makes any
cash dividend or distribution to all or substantially all holders of the Common Stock, the Conversion Rate shall be adjusted based on the following formula: 
  





 
 where, 
  

					
	CR0	 	=	 	 the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for
such dividend or distribution;

			
	CR’	 	=	 	 the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date for such
dividend or distribution;

			
	SP0	 	=	 	 the Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the
Ex-Dividend Date for such dividend or distribution; and

			
	C	 	=	 	 the amount in cash per share the Company distributes to all or substantially all holders of the Common Stock.


 Any increase pursuant to this Section 14.04(d) shall become effective immediately after the open of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the Board of Directors determines not to make or
pay such dividend or distribution, to be the Conversion Rate that would then be in effect if such dividend or distribution had not been declared. Notwithstanding the foregoing, if “C” (as defined 

  
 59 













 above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing
increase, each Holder of a Note shall receive, for each $1,000 principal amount of Notes, at the same time and upon the same terms as holders of shares of the Common Stock, the amount of cash that such Holder would have received if such Holder owned
a number of shares of Common Stock equal to the Conversion Rate on the Ex-Dividend Date for such cash dividend or distribution. 

(e) If the Company or any of its Subsidiaries make a payment in respect of a tender or exchange offer for the Common Stock that is subject to
the then-applicable tender offer rules under the Exchange Act (other than an odd lot tender offer), to the extent that the cash and value of any other consideration included in the payment per share of the Common Stock exceeds the average of the
Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on, and including, the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer,
the Conversion Rate shall be increased based on the following formula: 
  
 



 
 where, 
  

					
	CR0	 	=	 	 the Conversion Rate in effect immediately prior to the close of business on the 10th Trading Day immediately following, and including, the
Trading Day next succeeding the date such tender or exchange offer expires (the date such tender offer or exchange offer expires, the “Expiration Date”);

			
	CR’	 	=	 	 the Conversion Rate in effect immediately after the close of business on the 10th Trading Day immediately following, and including, the
Trading Day next succeeding the Expiration Date;

			
	AC	 	=	 	 the aggregate value of all cash and any other consideration (as determined by the Board of Directors) paid or payable for shares of Common
Stock purchased in such tender or exchange offer;

			
	OS0	 	=	 	 the number of shares of Common Stock outstanding immediately prior to the Expiration Date (prior to giving effect to the purchase of all
shares of Common Stock accepted for purchase or exchange in such tender or exchange offer);

			
	OS’	 	=	 	 the number of shares of Common Stock outstanding immediately after the Expiration Date (after giving effect to the purchase of all shares of
Common Stock accepted for purchase or exchange in such tender or exchange offer); and SP’ = the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on, and including, the Trading
Day next succeeding the Expiration Date.


 The increase to the Conversion Rate under this Section 14.04(e) shall occur at the close of business on
the 10th Trading Day immediately following, and including, the Trading Day next succeeding the date such tender or exchange offer expires; provided that if the relevant Conversion Date occurs during the 10 Trading Days immediately following,
and including, the Trading Day next succeeding the Expiration Date of any tender or exchange offer, references to “10” or “10th” in the preceding paragraph shall be deemed replaced with such lesser number of Trading Days as have
elapsed between the Expiration Date of such tender or exchange offer and the Conversion Date in determining the Conversion Rate. In addition, if the Trading Day next succeeding the date such tender or exchange offer expires is after the 10th Trading
Day immediately preceding, and including, the date immediately 

  
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preceding the relevant Conversion Date in respect of a conversion of Notes, references to “10” or “10th” in the preceding paragraph and this paragraph shall be deemed to be
replaced, solely in respect of that conversion of Notes, with such lesser number of Trading Days as have elapsed from, and including, the Trading Day next succeeding the date such tender or exchange offer expires to, and including, the last Trading
Day immediately preceding the relevant Conversion Date. 
 In the event that the Company or one of its Subsidiaries is obligated to purchase
shares of Common Stock pursuant to any such tender offer or exchange offer, but the Company is, or such Subsidiary is, permanently prevented by applicable law from consummating any such purchases, or all such purchases are rescinded, then the
Conversion Rate shall be decreased to be the Conversion Rate that would then be in effect if such tender offer or exchange offer had not been made or had been made only in respect of the purchases that have been consummated. 

(f) Notwithstanding this Section 14.04 or any other provision of this Indenture or the Notes, if a Conversion Rate adjustment becomes
effective on any Ex-Dividend Date, and a Holder that has converted its Notes on or after such Ex-Dividend Date and on or prior to the related Record Date would be
treated as the record holder of the shares of Common Stock as of the related Conversion Date as described under Section 14.02(i) based on an adjusted Conversion Rate for such Ex-Dividend Date, then,
notwithstanding the Conversion Rate adjustment provisions in this Section 14.04, the Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such converting Holder. Instead,
such Holder shall be treated as if such Holder were the record owner of the shares of Common Stock on an unadjusted basis and participate in the related dividend, distribution or other event giving rise to such adjustment. 

(g) Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance of shares of the Common Stock or any securities
convertible into or exchangeable for shares of the Common Stock or the right to purchase shares of the Common Stock or such convertible or exchangeable securities. 

(h) In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this Section 14.04, and to the extent
permitted by applicable law and subject to the applicable rules of The New York Stock Exchange, the Company from time to time may increase the Conversion Rate by any amount for a period of at least 20 Business Days if the Board of Directors
determines that such increase would be in the Company’s best interest. In addition, to the extent permitted by applicable law and subject to the applicable rules of The New York Stock Exchange, the Company may (but is not required to) increase
the Conversion Rate to avoid or diminish any income tax to holders of Common Stock or rights to purchase Common Stock in connection with a dividend or distribution of shares of Common Stock (or rights to acquire shares of Common Stock) or similar
event. Whenever the Conversion Rate is increased pursuant to either of the preceding two sentences, the Company shall deliver to the Holder of each Note a notice of the increase at least 15 days prior to the date the increased Conversion Rate takes
effect, and such notice shall state the increased Conversion Rate and the period during which it will be in effect. 
 (i) Except as stated
in this Indenture, the Company shall not adjust the Conversion Rate for the issuance of shares of Common Stock or any securities convertible into or exchangeable for shares of Common Stock or the right to purchase shares of Common Stock or such
convertible or exchangeable securities. For illustrative purposes only and without limiting the generality of the preceding sentence, the Conversion Rate shall not be adjusted: 

(i) upon the issuance of any shares of Common Stock pursuant to any present or future plan providing for the reinvestment of
dividends or interest payable on the Company’s securities and the investment of additional optional amounts in shares of Common Stock under any plan; 

  
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 (ii) upon the issuance of any shares of Common Stock or options or rights to
purchase those shares pursuant to any present or future employee, director or consultant benefit plan or program of or assumed by the Company or any of the Company’s Subsidiaries; 

(iii) upon the issuance of any shares of the Common Stock pursuant to any option, warrant, right or exercisable, exchangeable
or convertible security not described in clause (ii) of this subsection and outstanding as of the date the Notes were first issued; 

(iv) upon the repurchase of any shares of Common Stock pursuant to an open market share repurchase program or other buy-back transaction, including structured or derivative transactions, that is not a tender or exchange offer of the nature described in Section 14.04(e); 

(v) solely for a change in the par value (or lack of par value) of the Common Stock; or 

(vi) for accrued and unpaid interest, if any. 

(j) All calculations and other determinations under this Article 14 shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000th) of a share. 
 (k) Whenever the Conversion Rate is adjusted as herein
provided, the Company shall promptly deliver to the Trustee (and the Conversion Agent if not the Trustee) an Officer’s Certificate setting forth the Conversion Rate after such adjustment and setting forth a brief statement of the facts
requiring such adjustment. Unless and until a Responsible Officer of the Trustee shall have received such Officer’s Certificate, the Trustee shall not be deemed to have knowledge of any adjustment of the Conversion Rate and may assume without
inquiry that the last Conversion Rate of which it has knowledge is still in effect. Promptly after delivery of such certificate, the Company shall prepare a written notice of such adjustment of the Conversion Rate setting forth the adjusted
Conversion Rate and the date on which each adjustment becomes effective and shall deliver such notice of such adjustment of the Conversion Rate to each Holder (with a copy to the Trustee). Failure to deliver such notice shall not affect the legality
or validity of any such adjustment. 
 (l) For purposes of this Section 14.04, the number of shares of Common Stock at any time
outstanding shall not include shares of Common Stock held in the treasury of the Company so long as the Company does not pay any dividend or make any distribution on shares of Common Stock held in the treasury of the Company, but shall include
shares of Common Stock issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock. 

Section 14.05 Adjustments of Prices. Whenever any provision of this Indenture requires the Company to calculate the Last Reported
Sale Prices or the Daily VWAPs over a span of multiple days, the Board of Directors shall make appropriate adjustments (without duplication in respect of any adjustment made pursuant to Section 14.04) to each to account for any adjustment to
the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date, Effective Date or Expiration Date, as the case may be, of the event occurs, at any time during the period when the
Last Reported Sale Prices or the Daily VWAPs are to be calculated. 

  
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 Section 14.06 Shares to Be Fully Paid. The Company shall reserve, free from
preemptive rights, out of its authorized but unissued shares or shares held in treasury, sufficient shares of Common Stock to provide for conversion of the Notes from time to time as such Notes are presented for conversion. 

Section 14.07 Effect of Recapitalizations, Reclassifications and Changes of the Common Stock. 

(a) In the case of: 

(i) any recapitalization, reclassification or change of the Common Stock (other than changes in par value or resulting from a
subdivision or combination), 
 (ii) any consolidation, merger, combination or similar transaction involving the Company,

 (iii) any sale, lease or other transfer to a third party of all or substantially all of the consolidated assets of the
Company and the Company’s Subsidiaries, taken as a whole, or 
 (iv) any statutory share exchange, 

in each case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or assets (including
cash or any combination thereof) (any such event, a “Share Exchange Event”), then at and after the effective time of such Share Exchange Event, the right to convert each $1,000 principal amount of Notes shall be changed into a right
to convert such principal amount of Notes into the kind and amount of shares of stock, other securities or other property or assets (including cash or any combination thereof) that a holder of a number of shares of Common Stock equal to the
Conversion Rate immediately prior to such Share Exchange Event would have owned or been entitled to receive (the “Reference Property,” with each “unit of Reference Property” meaning the kind and amount of Reference
Property that a holder of one share of Common Stock is entitled to receive) upon such Share Exchange Event and, prior to or at the effective time of such Share Exchange Event, the Company or the successor or acquiring Person, as the case may be,
shall execute with the Trustee a supplemental indenture permitted under Section 10.01(g) providing for such change in the right to convert each $1,000 principal amount of Notes; provided, however, that at and after the effective
time of the Share Exchange Event (A) the Company or the successor or acquiring company, as the case may be, shall continue to have the right to determine the form of consideration to be paid or delivered, as the case may be, upon conversion of
Notes in accordance with Section 14.02 and (B) (I) any amount payable in cash upon conversion of the Notes in accordance with Section 14.02 shall continue to be payable in cash, (II) any shares of Common Stock that the Company
would have been required to deliver upon conversion of the Notes in accordance with Section 14.02 shall instead be deliverable in the amount and type of Reference Property that a holder of that number of shares of Common Stock would have been
entitled to receive in such Share Exchange Event and (III) the Daily VWAP shall be calculated based on the value of a unit of Reference Property. 

If the Share Exchange Event causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type of
consideration (determined based in part upon any form of stockholder election), then (i) the Reference Property into which the Notes will be convertible shall be deemed to be (x) the weighted average of the types and amounts of
consideration received by the holders of Common Stock that affirmatively make such an election or (y) if no holders of Common Stock affirmatively make such an election, the types and amounts of consideration actually received by the holders of
Common Stock, and (ii) the unit of Reference Property for purposes of the immediately preceding paragraph shall refer to the consideration referred to in clause (i) attributable to one share of Common Stock. If the holders of the Common
Stock receive only cash in such Share Exchange Event, then for all conversions for which the relevant Conversion Date occurs after the effective date of such 

  
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Share Exchange Event (A) the consideration due upon conversion of each $1,000 principal amount of Notes shall be solely cash in an amount equal to the Conversion Rate in effect on the
Conversion Date, multiplied by the price paid per share of Common Stock in such Share Exchange Event and (B) the Company shall satisfy the Conversion Obligation by paying such cash amount to converting Holders on the second Business Day
immediately following the relevant Conversion Date. The Company shall notify in writing Holders, the Trustee and the Conversion Agent (if other than the Trustee) of such weighted average as soon as reasonably practicable after such determination is
made. 
 If the Reference Property in respect of any Share Exchange Event includes, in whole or in part, shares of common equity, such
supplemental indenture described in the second immediately preceding paragraph shall provide for anti-dilution and other adjustments that shall be as nearly equivalent as is possible to the adjustments provided for in this Article 14 with
respect to the portion of the Reference Property consisting of such common equity. If, in the case of any Share Exchange Event, the Reference Property includes shares of stock, securities or other property or assets (other than cash and/or cash
equivalents) of a Person other than the successor or purchasing corporation, as the case may be, in such Share Exchange Event, then such supplemental indenture shall also be executed by such other Person, if such other Person is an affiliate of the
Company or the successor or acquiring company, and shall contain such additional provisions to protect the interests of the Holders of the Notes as the Board of Directors shall reasonably consider necessary by reason of the foregoing, including the
provisions providing for the purchase rights set forth in Article 15. 
 (b) When the Company executes a supplemental indenture pursuant
to subsection (a) of this Section 14.07, the Company shall promptly deliver to the Trustee an Officer’s Certificate briefly stating the reasons therefor, the kind or amount of cash, securities or property or asset that will comprise a
unit of Reference Property after any such Share Exchange Event, any adjustment to be made with respect thereto and that all conditions precedent have been complied with, and shall promptly deliver notice thereof to all Holders. The Company shall
cause notice of the execution of such supplemental indenture to be delivered to each Holder within 20 days after execution thereof. Failure to deliver such notice shall not affect the legality or validity of such supplemental indenture. 

(c) The Company shall not become a party to any Share Exchange Event unless its terms are consistent with this Section 14.07. None of the
foregoing provisions shall affect the right of a holder of Notes to convert its Notes into shares of Common Stock, as set forth in Section 14.01 and Section 14.02 prior to the effective date of such Share Exchange Event. 

(d) The above provisions of this Section shall similarly apply to successive Share Exchange Events. 

Section 14.08 Certain Covenants. (a) Subject to Sections 14.02(d) and 14.02(e), the Company covenants that all shares of
Common Stock issued upon conversion of Notes will be fully paid and non-assessable by the Company and free from all taxes, liens and charges with respect to the issue thereof. 

(b) The Company covenants that, if any shares of Common Stock to be provided for the purpose of conversion of Notes hereunder require
registration with or approval of any governmental authority under any federal or state law before such shares of Common Stock may be validly issued upon conversion, the Company will, to the extent then permitted by the rules and interpretations of
the Commission, secure such registration or approval, as the case may be. 
 (c) The Company further covenants that if at any time the Common
Stock shall be listed on any national securities exchange or automated quotation system the Company will list and use its commercially reasonable efforts to keep listed, so long as the Common Stock shall be so listed on such exchange or automated
quotation system, any Common Stock issuable upon conversion of the Notes. 

  
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 Section 14.09 Responsibility of Trustee. The Trustee and any other Conversion
Agent shall not at any time be under any duty or responsibility to any Holder to determine the Conversion Rate (or any adjustment thereto) or whether any facts exist that may require any adjustment (including any increase) of the Conversion Rate, or
with respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed, or herein or in any supplemental indenture provided to be employed, in making the same. The Trustee and any other
Conversion Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common Stock, or of any securities, property or cash that may at any time be issued or delivered upon the conversion of any
Note; and the Trustee and any other Conversion Agent make no representations with respect thereto. 
 Neither the Trustee nor any Conversion Agent shall be
responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock or stock certificates or other securities or property or cash upon the surrender of any Note for the purpose of conversion or to comply with any of
the duties, responsibilities or covenants of the Company contained in this Article. Without limiting the generality of the foregoing, neither the Trustee nor any Conversion Agent shall be under any responsibility to determine the correctness of any
provisions contained in any supplemental indenture entered into pursuant to Section 14.07 relating either to the kind or amount of shares of stock or securities or property (including cash) receivable by Holders upon the conversion of their
Notes after any event referred to in such Section 14.07 or to any adjustment to be made with respect thereto, but, subject to the provisions of Section 7.01, may accept (without any independent investigation) as conclusive evidence of the
correctness of any such provisions, and shall be protected in conclusively relying upon, the Officer’s Certificate (which the Company shall be obligated to deliver to the Trustee prior to the execution of any such supplemental indenture) with
respect thereto. The Trustee and the Conversion Agent may conclusively rely upon any notice with respect to the commencement or termination of such conversion rights. 

Section 14.10 Notice to Holders Prior to Certain Actions. In case of any: 

(a) action by the Company or one of its Subsidiaries that would require an adjustment in the Conversion Rate pursuant to Section 14.04 or
Section 14.11; 
 (b) Share Exchange Event; or 

(c) voluntary or involuntary dissolution, liquidation or winding-up of the Company; 

then, in each case (unless notice of such event is otherwise required pursuant to another provision of this Indenture) and to the extent applicable, the
Company shall cause to be filed with the Trustee and the Conversion Agent (if other than the Trustee) and to be delivered to each Holder, a notice stating the date on which a record is to be taken for the purpose of such action by the Company or one
of its Subsidiaries or, if a record is not to be taken, the date as of which the holders of Common Stock of record are to be determined for the purposes of such action by the Company or one of its Subsidiaries no later than the earlier of the date
notice of such date is required to be provided under Rule 10b-17 of the Exchange Act, other applicable Commission rule or applicable rules of the principal U.S. national or regional securities exchange on
which the Common Stock is then listed or admitted for trading and such date is publicly announced by the Company. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such action by the Company or one of
its Subsidiaries, Share Exchange Event, dissolution, liquidation or winding-up. 

  
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 Section 14.11 Stockholder Rights Plans. If the Company has a stockholder rights
plan in effect upon conversion of the Notes, each share of Common Stock, if any, issued upon such conversion shall be entitled to receive the appropriate number of rights, if any, under such stockholder rights plan and the certificates representing
the Common Stock issued upon such conversion shall bear such legends, if any, in each case as may be provided by the terms of any such stockholder rights plan, as the same may be amended from time to time. However, if, prior to any conversion of
Notes, the rights have separated from the shares of Common Stock in accordance with the provisions of the applicable stockholder rights plan, the Conversion Rate shall be adjusted at the time of separation as if the Company distributed to all or
substantially all holders of the Common Stock Distributed Property as provided in Section 14.04(c), subject to readjustment in the event of the expiration, termination or redemption of such rights. 

Section 14.12 Exchange in Lieu of Conversion. When a Holder surrenders its Notes for conversion, the Company may, at its election
(an “Exchange Election”), direct the Conversion Agent to deliver, on or prior to the first Trading Day following the Conversion Date, such Notes to a financial institution designated by the Company for exchange in lieu of
conversion. In order to accept any Notes surrendered for conversion, the designated financial institution must agree to timely deliver, in exchange for such Notes, the shares of Common Stock due upon conversion as described in Section 14.02. If
the Company makes an Exchange Election, the Company shall, by the close of business on the first Trading Day following the relevant Conversion Date, notify in writing the Trustee, the Conversion Agent and the Holder surrendering its Notes for
conversion that it has made the Exchange Election, and the Company shall notify the designated financial institution of the Physical Settlement Method it with respect to such conversion and the relevant deadline for payment and/or delivery of shares
of Common Stock due upon conversion. 
 Any Notes exchanged by the designated financial institution shall remain outstanding. If the
designated financial institution agrees to accept any Notes for exchange but does not timely pay and/or deliver the required shares of Common Stock due upon conversion, or if such designated financial institution does not accept the Notes for
exchange, the Company shall notify in writing the Trustee, the Conversion Agent and the Holder surrendering its Notes for conversion, and pay and/or deliver the required shares of Common Stock due upon conversion to the converting Holder at the time
and in the manner required under this Indenture as if the Company had not made an Exchange Election. 
 The Company’s designation of a
financial institution to which the Notes may be submitted for exchange does not require that financial institution to accept any Notes (unless the financial institution has separately made an agreement with the Company). The Company may, but shall
not be obligated to, enter into a separate agreement with any designated financial institution that would compensate it for any such transaction. 

Section 14.13 Limits Upon Issuance of Shares of Common Stock Upon Conversion. The Company shall not effect the conversion of any
of the Notes held by a Holder, and such Holder shall not have the right to convert any of the Notes held by such Holder pursuant to the terms and conditions of this Indenture and any such conversion shall be null and void and treated as if never
made, to the extent that after giving effect to such conversion, such Holder together with the other Attribution Parties collectively would beneficially own in excess of 9.99% (the “Maximum Percentage”) of the shares of Common Stock
outstanding immediately after giving effect to such conversion. For purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such Holder and the other Attribution Parties shall include the number of
shares of Common Stock held by such Holder and all other Attribution Parties plus the number of shares of Common Stock issuable upon conversion of the Notes with respect to which the determination of such sentence is being made, but shall exclude
shares of Common Stock which would be issuable upon (A) conversion of the remaining, nonconverted Notes beneficially owned by such Holder or any of the other Attribution Parties and (B) 

  
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exercise or conversion of the unexercised or nonconverted portion of any other securities of the Company (including, without limitation, any convertible notes, convertible preferred stock or
warrants, including the Notes and the Initial Warrants) beneficially owned by such Holder or any other Attribution Party subject to a limitation on conversion or exercise analogous to the limitation contained in this Section 14.13. For purposes
of this Section 14.13, beneficial ownership shall be calculated in accordance with Section 13(d) of the 1934 Act. For purposes of determining the number of outstanding shares of Common Stock a Holder may acquire upon the conversion of such
Warrants without exceeding the Maximum Percentage, such Holder may rely on the number of outstanding shares of Common Stock as reflected in (x) the Company’s most recent Annual Report on Form 10-K,
Quarterly Report on Form 10-Q, Current Report on Form 8-K or other public filing with the Commission, as the case may be, (y) a more recent public announcement by
the Company or (z) any other written notice by the Company or the Transfer Agent, if any, setting forth the number of shares of Common Stock outstanding (the “Reported Outstanding Share Number”). If the Company receives a
Conversion Notice from a Holder at a time when the actual number of outstanding shares of Common Stock is less than the Reported Outstanding Share Number, the Company shall notify such Holder in writing of the number of shares of Common Stock then
outstanding and, to the extent that such Conversion Notice would otherwise cause such Holder’s beneficial ownership, as determined pursuant to this Section 14.13, to exceed the Maximum Percentage, such Holder must notify the Company of a
reduced number of shares of Common Stock to be purchased pursuant to such Conversion Notice. For any reason at any time, upon the written or oral request of any Holder, the Company shall within one (1) Business Day confirm orally and in writing
or by electronic mail to such Holder the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the
Company, including such Notes, by such Holder and any other Attribution Party since the date as of which the Reported Outstanding Share Number was reported. In the event that the issuance of shares of Common Stock to a Holder upon conversion of such
Notes results in such Holder and the other Attribution Parties being deemed to beneficially own, in the aggregate, more than the Maximum Percentage of the number of outstanding shares of Common Stock (as determined under Section 13(d) of the
1934 Act), the number of shares so issued by which such Holder’s and the other Attribution Parties’ aggregate beneficial ownership exceeds the Maximum Percentage (the “Excess Shares”) shall be deemed null and void and
shall be cancelled ab initio, and such Holder shall not have the power to vote or to transfer the Excess Shares. Upon delivery of a written notice to the Company, any Holder may from time to time increase (with such increase not effective until the
sixty-first (61st) day after delivery of such notice) or decrease the Maximum Percentage of such Holder to any other percentage not in excess of 9.99% as specified in such notice; provided that (i) any such increase in the Maximum Percentage
will not be effective until the sixty-first (61st) day after such notice is delivered to the Company and (ii) any such increase or decrease will apply only to such Holder and the other Attribution Parties and not to any other Holder that is not
an Attribution Party of such Holder. For purposes of clarity, the shares of Common Stock issuable to a Holder pursuant to the terms of this Indenture in excess of the Maximum Percentage shall not be deemed to be beneficially owned by such Holder for
any purpose including for purposes of Section 13(d) or Rule 16a-1(a)(1) of the 1934 Act. No prior inability to convert such Notes pursuant to this paragraph shall have any effect on the applicability of
the provisions of this paragraph with respect to any subsequent determination of convertibility. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this
Section 14.13 to the extent necessary to correct this paragraph (or any portion of this paragraph) which may be defective or inconsistent with the intended beneficial ownership limitation contained in this Section 14.13 or to make changes
or supplements necessary or desirable to properly give effect to such limitation. The limitation contained in this paragraph may not be waived and shall apply to a successor holder of such Notes. Neither the Trustee nor the Conversion Agent shall
have any responsibility to determine the Maximum Percentage or whether the issuance of any shares results in a Holder or Attribution Party having Excess Shares or otherwise determine or monitor compliance with the terms of this Section 14.13.


  
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 ARTICLE 15 

REPURCHASE OF NOTES AT OPTION OF HOLDERS 

Section 15.01 [Intentionally Omitted]. 

Section 15.02 Repurchase at Option of Holders Upon a Fundamental Change. (a) If a Fundamental Change occurs at any time prior
to the Maturity Date, each Holder shall have the right, at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes, or any portion of the principal amount thereof that is equal to $1,000 or an
integral multiple of $1,000, on the date (the “Fundamental Change Repurchase Date”) specified by the Company that is not less than 20 Business Days or more than 35 Business Days following the date of the Fundamental Change Company
Notice at a repurchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, plus any remaining amounts that would be owed to, but excluding, the Maturity Date, including all regularly scheduled interest
payments (the “Fundamental Change Repurchase Price”), unless the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to the Interest Payment Date to which such Regular Record Date relates, in which
case the Company shall instead pay the full amount of accrued and unpaid interest (to, but excluding, such Interest Payment Date) to Holders of record as of such Regular Record Date, and the Fundamental Change Repurchase Price shall be equal to 100%
of the principal amount of Notes to be repurchased pursuant to this Article 15, plus accrued and unpaid interest, if any, plus any remaining amounts that would be owed to, but excluding, the Maturity Date, including all regularly scheduled
interest payments. The Fundamental Change Repurchase Date shall be subject to postponement in order to allow the Company to comply with applicable law. 

(b) Repurchases of Notes under this Section 15.02 shall be made, at the option of the Holder thereof, upon: 

(i) delivery to the paying agent by a Holder of a duly completed notice (the “Fundamental Change Repurchase
Notice”) in the form set forth in Attachment 2 to the Form of Note attached hereto as Exhibit A, if the Notes are Physical Notes, or in compliance with the Applicable Procedures for surrendering interests in Global Notes, if the Notes
are Global Notes, in each case on or before the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date; and 

(ii) delivery of the Notes, if the Notes are Physical Notes, to the paying agent at any time after delivery of the Fundamental
Change Repurchase Notice (together with all necessary endorsements for transfer) at the office of the paying agent, or book- entry transfer of the Notes, if the Notes are Global Notes, in compliance with the procedures of the Depositary, in each
case such delivery being a condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor. 
 The Fundamental Change Repurchase
Notice in respect of any Notes to be repurchased shall state: 
 (iii) in the case of Physical Notes, the certificate numbers
of the Notes to be delivered for repurchase; 
 (iv) the portion of the principal amount of Notes to be repurchased, which
must be in minimum denominations of $1,000 or an integral multiple thereof; and 

  
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 (v) that the Notes are to be repurchased by the Company pursuant to the
applicable provisions of the Notes and this Indenture; 
 provided, however, that if the Notes are Global Notes, the Fundamental Change
Repurchase Notice must comply with the Applicable Procedures. 
 Notwithstanding anything herein to the contrary, any Holder delivering to
the paying agent the Fundamental Change Repurchase Notice contemplated by this Section 15.02 shall have the right to withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any time prior to the close of business on the
Business Day immediately preceding the Fundamental Change Repurchase Date by delivery of a written notice of withdrawal to the paying agent in accordance with Section 15.03. 

The paying agent shall promptly notify the Company of the receipt by it of any Fundamental Change Repurchase Notice or written notice of
withdrawal thereof. 
 (c) On or before the 20th Business Day after the occurrence of the effective date of a Fundamental Change, the Company
shall provide to all Holders of Notes, the Trustee, the Conversion Agent (if other than the Trustee) and the paying agent (in the case of a paying agent other than the Trustee) a written notice (the “Fundamental Change Company
Notice”) of the occurrence of the effective date of the Fundamental Change and of the repurchase right at the option of the Holders arising as a result thereof. In the case of Physical Notes, such notice shall be by first class mail or, in
the case of Global Notes, such notice shall be delivered in accordance with the Applicable Procedures of the Depositary. Each Fundamental Change Company Notice shall specify: 

(i) the events causing the Fundamental Change; 

(ii) the effective date of the Fundamental Change; 

(iii) the last date on which a Holder may exercise the repurchase right pursuant to this Article 15; 

(iv) the Fundamental Change Repurchase Price; 

(v) the Fundamental Change Repurchase Date; 

(vi) the name and address of the paying agent and the Conversion Agent, if applicable; 

(vii) if applicable, the Conversion Rate and any adjustments to the Conversion Rate; 

(viii) that the Notes with respect to which a Fundamental Change Repurchase Notice has been delivered by a Holder may be
converted only if the Holder withdraws the Fundamental Change Repurchase Notice in accordance with the terms of this Indenture; and 

(ix) the procedures that Holders must follow to require the Company to repurchase their Notes. 

No failure of the Company to give the foregoing notices and no defect therein shall limit the Holders’ repurchase rights or affect the
validity of the proceedings for the repurchase of the Notes pursuant to this Section 15.02. Simultaneously with providing such notice, the Company will publish such information on its website or through such other public medium as the Company
may use at that time. 

  
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 At the Company’s written request, given at least five days prior to the date the Fundamental Change
Company Notice is to be sent, the Trustee shall give such notice in the Company’s name and at the Company’s expense; provided, however, that, in all cases, the text of such Fundamental Change Company Notice shall be prepared
by the Company. 
 (d) Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date at the option of the Holders in
connection with a Fundamental Change if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the case of an acceleration resulting from a Default by the Company in
the payment of the Fundamental Change Repurchase Price with respect to such Notes). The paying agent will promptly return to the respective Holders thereof any Physical Notes held by it during the acceleration of the Notes (except in the case of an
acceleration resulting from a Default by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in compliance with the Applicable Procedures shall
be deemed to have been cancelled, and, upon such return or cancellation, as the case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn. 

(e) Notwithstanding anything to the contrary in this Indenture, the Company shall not be required to repurchase, or to make an offer to
repurchase, the Notes upon a Fundamental Change if a third party makes such an offer in the same manner, at the same time and otherwise in compliance with the requirements for an offer made by the Company as set forth in this Article 15
(including, without limitation, the requirement to comply with applicable securities laws), and such third party purchases all Notes properly surrendered and not validly withdrawn under its offer in the same manner, at the same time and otherwise in
compliance with the requirements for an offer made by the Company as set forth in this Article 15 (including the requirement to pay the Fundamental Change Repurchase Price on the later of the applicable Fundamental Change Repurchase Date and
the time of book-entry transfer or delivery of the relevant Notes); provided that the Company shall continue to be obligated to (x) deliver the applicable Fundamental Change Repurchase Notice to the Holders (which Fundamental Change
Repurchase Notice shall state that such third party shall make such an offer to purchase the Notes) and to simultaneously with such Fundamental Change Repurchase Notice publish a notice containing such information in a newspaper of general
circulation in the City of New York or publish the information on the Company’s website or through such other public medium as the Company may use at that time, (y) comply with applicable securities laws as set forth in this Indenture in
connection with any such purchase and (z) pay the applicable Fundamental Change Repurchase Price on the later of the applicable Fundamental Change Repurchase Date and the time of book-entry transfer or delivery of the relevant Notes in the
event such third party fails to make such payment in such amount at such time. 
 (f) For purposes of this Article 15, the paying agent
may be any agent, depositary, tender agent, paying agent or other agent appointed by the Company to accomplish the purposes set forth herein. 

Section 15.03 Withdrawal of Fundamental Change Repurchase Notice. (a) A Fundamental Change Repurchase Notice may be withdrawn
(in whole or in part) by means of a written notice of withdrawal delivered to the office of the paying agent in accordance with this Section 15.03 at any time prior to the close of business on the Business Day immediately preceding the
Fundamental Change Repurchase Date, specifying: 
 (i) the principal amount of the Notes with respect to which such notice of
withdrawal is being submitted, which must be $1,000 or an integral multiple thereof, 

  
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 (ii) if Physical Notes have been issued, the certificate number of the Note
in respect of which such notice of withdrawal is being submitted, and 
 (iii) the principal amount, if any, of such Note
that remains subject to the original Fundamental Change Repurchase Notice, which portion must be in principal amounts of $1,000 or an integral multiple of $1,000; 

provided, however, that if the Notes are Global Notes, the notice of withdrawal must comply with appropriate procedures of the Depositary. 

Section 15.04 Deposit of Fundamental Change Repurchase Price. (a) The Company will deposit with the Trustee (or other paying
agent appointed by the Company), or if the Company is acting as its own paying agent, set aside, segregate and hold in trust as provided in Section 4.04 on or prior to 11:00 a.m., New York City time, on the Fundamental Change Repurchase Date
(subject to extension in order to allow the Company to comply with applicable law) an amount of money sufficient to repurchase all of the Notes to be repurchased at the appropriate Fundamental Change Repurchase Price. Subject to receipt of funds
and/or Notes by the Trustee (or other paying agent appointed by the Company), payment for Notes surrendered for repurchase (and not withdrawn prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase
Date) will be made on the later of (i) the Fundamental Change Repurchase Date (provided the Holder has satisfied the conditions in Section 15.02) and (ii) the time of book-entry transfer or the delivery of such Note to the Trustee (or
other paying agent appointed by the Company) by the Holder thereof in the manner required by Section 15.02 by mailing checks for the amount payable to the Holders of such Notes entitled thereto as they shall appear in the Note Register;
provided, however, that payments to the Depositary shall be made by wire transfer of immediately available funds to the account of the Depositary or its nominee. The Trustee shall, promptly after such payment and upon written demand by the Company,
return to the Company any funds in excess of the Fundamental Change Repurchase Price. 
 (a) If by 11:00 a.m. New York City time, on the
Fundamental Change Repurchase Date, the Trustee (or other paying agent appointed by the Company) holds money sufficient to make payment on all the Notes or portions thereof that are to be repurchased on such Fundamental Change Repurchase Date, or,
if extended in order to allow the Company to comply with applicable law, such later date, then, with respect to the Notes that have been properly surrendered for repurchase and have not been validly withdrawn in accordance with the provisions of
this Indenture and the procedures of the Depositary, (i) such Notes will cease to be outstanding, (ii) interest will cease to accrue on such Notes on the Fundamental Change Repurchase Date or, if extended in order to allow the Company to
comply with applicable law, such later date (whether or not book-entry transfer of the Notes has been made or the Notes have been delivered to the Trustee or paying agent) and (iii) all other rights of the Holders of such Notes with respect to
the Notes will terminate on the Fundamental Change Repurchase Date or, if extended in order to allow the Company to comply with applicable law, such later date (other than (x) the right to receive the Fundamental Change Repurchase Price and
(y) if the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to the related Interest Payment Date, the right of the Holder of record on such Regular Record Date to receive the full amount of accrued and unpaid
interest to, but excluding, such Interest Payment Date). 
 (b) Upon surrender of a Physical Note that is to be repurchased in part pursuant
to Section 15.02, the Company shall execute and the Trustee shall authenticate and deliver to the Holder a new Physical Note in an authorized denomination equal in principal amount to the unrepurchased portion of the Physical Note surrendered.


  
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 Section 15.05 Covenant to Comply with Applicable Laws Upon Repurchase of Notes.
In connection with any repurchase offer, the Company will, if required: 
 (a) comply with the provisions of any tender offer rules under the
Exchange Act that may then be applicable; 
 (b) file a Schedule TO or any other required schedule under the Exchange Act; and 

(c) otherwise comply in all material respects with all federal and state securities laws in connection with any offer by the Company to
repurchase the Notes; 
 in each case, so as to permit the rights and obligations under this Article 15 to be exercised in the time and in the manner
specified in this Article 15 subject to postponement in order to allow the Company to comply with applicable law. To the extent that the provisions of any securities laws or regulations conflict with the provisions of this Indenture relating to
the Company’s obligations to purchase the Notes upon a Fundamental Change, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under such provisions of this
Indenture by virtue of such conflict. 
 ARTICLE 16 

NO REDEMPTION 
 Section 16.01
No Redemption. Other than as provided in Section 4.10, the Notes shall not be redeemable by the Company prior to the Maturity Date, and no sinking fund is provided for the Notes. 

ARTICLE 17 
 MISCELLANEOUS
PROVISIONS 
 Section 17.01 Provisions Binding on Company’s Successors. All the covenants, stipulations,
promises and agreements of the Company contained in this Indenture shall bind its successors and assigns whether so expressed or not. 

Section 17.02 Official Acts by Successor Corporation. Any act or proceeding by any provision of this Indenture authorized or
required to be done or performed by any board, committee or Officer of the Company shall and may be done and performed with like force and effect by the like board, committee or officer of any corporation or other entity that shall at the time be
the lawful sole successor of the Company. 
 Section 17.03 Addresses for Notices, Etc. Any notice or demand that by any
provision of this Indenture is required or permitted to be given or served by the Trustee or by the Holders on the Company shall be deemed to have been sufficiently given or made, for all purposes if given or served by being deposited postage
prepaid by registered or certified mail in a post office letter box addressed (until another address is delivered by the Company to the Trustee) to [Lightning eMotors, Inc.],
[                 ], Attention: [General Counsel], with a copy sent to DLA Piper LLP (US), 555 Mission Street, Suite 2400, San Francisco, CA 94105-2933, Attention:
Jeffrey C. Selman, Esq. Any notice, direction, request or demand hereunder to or upon the Trustee shall be deemed to have been sufficiently given or made, for all purposes, if it is in writing and actually received by the Trustee at the Corporate
Trust Office. In no event shall the Trustee or the Conversion Agent be obligated to monitor any website maintained by the Company or any press releases issued by the Company. 

  
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 The Trustee, by notice to the Company, may designate additional or different addresses for
subsequent notices or communications. 
 Any notice or communication delivered or to be delivered to a Holder of Physical Notes shall be
mailed to it by first class mail, postage prepaid, at its address as it appears on the Note Register and shall be sufficiently given to it if so mailed within the time prescribed. Any notice or communication delivered or to be delivered to a Holder
of Global Notes shall be delivered in accordance with the Applicable Procedures of the Depositary and shall be sufficiently given to it if so delivered within the time prescribed. 

Failure to mail or deliver a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other
Holders. If a notice or communication is mailed or delivered, as the case may be, in the manner provided above, it is duly given, whether or not the addressee receives it. 

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice to
Holders by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder. 

Section 17.04 Governing Law; Jurisdiction. THIS INDENTURE AND EACH NOTE, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR
RELATED TO THIS INDENTURE AND EACH NOTE, SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF LAWS PROVISIONS THEREOF). 

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time of the Notes and the Trustee, that any legal
action, suit or proceeding against it with respect to obligations, liabilities or any other matter arising out of or in connection with this Indenture or the Notes may be brought in the courts of the State of New York or the courts of the United
States located in the Borough of Manhattan, New York City, New York and, until amounts due and to become due in respect of the Notes have been paid, hereby irrevocably consents and submits to the non-exclusive
jurisdiction of each such court in personam, generally and unconditionally with respect to any action, suit or proceeding for itself in respect of its properties, assets and revenues. 

The Company irrevocably and unconditionally waives, to the fullest extent permitted by law, any objection which it may now or hereafter have
to the laying of venue of any of the aforesaid actions, suits or proceedings arising out of or in connection with this Indenture brought in the courts of the State of New York or the courts of the United States located in the Borough of Manhattan,
New York City, New York and hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action, suit or proceeding brought in any such court has been brought in an inconvenient forum. 

Section 17.05 Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee. Upon any
application or demand by the Company to the Trustee to take any action under any of the provisions of this Indenture, the Company shall furnish to the Trustee an Officer’s Certificate and an Opinion of Counsel, stating that such action is
permitted by the terms of this Indenture and that all conditions precedent to such action have been complied with. With respect to matters of fact, an Opinion of Counsel may rely on an Officer’s Certificate or certificates of public officials.


  
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 Each Officer’s Certificate and Opinion of Counsel provided for, by or on behalf of the
Company in this Indenture and delivered to the Trustee with respect to compliance with this Indenture (other than the Officer’s Certificates provided for in Section 4.08) shall include (a) a statement that the person signing such
certificate is familiar with the requested action and this Indenture; (b) a brief statement as to the nature and scope of the examination or investigation upon which the statement contained in such certificate is based; (c) a statement
that, in the judgment of such person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed judgment as to whether or not such action is permitted by this Indenture; and (d) a statement
as to whether or not, in the judgment of such person, such action is permitted by this Indenture and that all conditions precedent to such action have been complied with. 

Section 17.06 Legal Holidays. In any case where any Interest Payment Date, any Fundamental Change Repurchase Date or the Maturity
Date is not a Business Day, then any action to be taken on such date need not be taken on such date, but may be taken on the next succeeding Business Day with the same force and effect as if taken on such date, and no interest shall accrue on any
such payment in respect of the delay. 
 Section 17.07 No Security Interest Created. Nothing in this Indenture or in the Notes,
expressed or implied, shall be construed to constitute a security interest under the Uniform Commercial Code or similar legislation, as now or hereafter enacted and in effect, in any jurisdiction. 

Section 17.08 Benefits of Indenture. Nothing in this Indenture or in the Notes, expressed or implied, shall give to any Person,
other than the Holders, the parties hereto, any Paying Agent, any Conversion Agent, any Custodian, any authenticating agent, any Note Registrar and their successors hereunder, any benefit or any legal or equitable right, remedy or claim under this
Indenture. 
 Section 17.09 Table of Contents, Headings, Etc. The table of contents and the titles and headings of the articles
and sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof. 

Section 17.10 Authenticating Agent. The Trustee may appoint an authenticating agent that shall be authorized to act on its behalf
and subject to its direction in the authentication and delivery of Notes in connection with the original issuance thereof and transfers and exchanges of Notes hereunder, including under Section 2.04, Section 2.05, Section 2.06,
Section 2.07, Section 10.04 and Section 15.04 as fully to all intents and purposes as though the authenticating agent had been expressly authorized by this Indenture and those Sections to authenticate and deliver Notes. For all
purposes of this Indenture, the authentication and delivery of Notes by the authenticating agent shall be deemed to be authentication and delivery of such Notes “by the Trustee” and a certificate of authentication executed on behalf of the
Trustee by an authenticating agent shall be deemed to satisfy any requirement hereunder or in the Notes for the Trustee’s certificate of authentication. Such authenticating agent shall at all times be a Person eligible to serve as trustee
hereunder pursuant to Section 7.08. 
 Any corporation or other entity into which any authenticating agent may be merged or converted
or with which it may be consolidated, or any corporation or other entity resulting from any merger, consolidation or conversion to which any authenticating agent shall be a party, or any corporation or other entity succeeding to all or substantially
all of the corporate trust business of any authenticating agent, shall be the successor of the authenticating agent hereunder, if such successor corporation or other entity is otherwise eligible under this Section 17.10, without the execution
or filing of any paper or any further act on the part of the parties hereto or the authenticating agent or such successor corporation or other entity. 

  
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 Any authenticating agent may at any time resign by giving written notice of resignation to
the Trustee and to the Company. The Trustee may at any time terminate the agency of any authenticating agent by giving written notice of termination to such authenticating agent and to the Company. Upon receiving such a notice of resignation or upon
such a termination, or in case at any time any authenticating agent shall cease to be eligible under this Section, the Trustee may appoint a successor authenticating agent (which may be the Trustee), shall give written notice of such appointment to
the Company and shall deliver notice of such appointment to all Holders. 
 The Company agrees to pay to the authenticating agent from time
to time reasonable compensation for its services although the Company may terminate the authenticating agent, if it determines such agent’s fees to be unreasonable. 

The provisions of Section 7.02, Section 7.03, Section 7.04, Section 8.03 and this Section 17.10 shall be applicable
to any authenticating agent. 
 If an authenticating agent is appointed pursuant to this Section 17.10, the Notes may have endorsed
thereon, in addition to the Trustee’s certificate of authentication, an alternative certificate of authentication in the following form: 

______________________________, 
 as Authenticating Agent,
certifies that this is one of the Notes described 
 in the within-named Indenture. 

By: __________________________________________ 
 Authorized
Signatory 
 Section 17.11 Execution in Counterparts. This Indenture may be executed in any number of counterparts, each of
which shall be an original, but such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Indenture and of signature pages by facsimile, PDF or other electronic transmission shall constitute
effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile, PDF or other electronic means shall be deemed
to be their original signatures for all purposes. Unless otherwise provided in this Indenture or in any Note, the words “execute,” “execution,” “signed” and “signature” and words of similar import used in or
related to any document to be signed in connection with this Indenture, any Note or any of the transactions contemplated hereby (including amendments, waivers, consents and other modifications) shall be deemed to include electronic signatures and
the keeping of records in electronic form, each of which shall be of the same legal effect, validity or enforceability as a manually executed signature in ink or the use of a paper-based recordkeeping system, as applicable, to the fullest extent and
as provided for in any applicable law, including the Federal Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other similar state laws based on the Uniform Electronic
Transactions Act; provided that, notwithstanding anything herein to the contrary, the Trustee is not under any obligation to agree to accept electronic signatures in any form or in any format unless expressly agreed to by the Trustee pursuant
to procedures approved by the Trustee. 
 Section 17.12 Severability. In the event any provision of this Indenture or in the
Notes shall be invalid, illegal or unenforceable, then (to the extent permitted by law) the validity, legality or enforceability of the remaining provisions shall not in any way be affected or impaired. 

Section 17.13 Waiver of Jury Trial. EACH OF THE COMPANY AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED
BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY. 

  
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 Section 17.14 Force Majeure. In no event shall the Trustee be responsible or
liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or
terrorism, pandemics, epidemics, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services or the unavailability
of the Federal Reserve Bank wire or telex write or communication facility; it being understood that the Trustee shall use reasonable efforts that are consistent with accepted practices in the banking industry to resume performance as soon as
practicable under the circumstances. 
 Section 17.15 Calculations. The Company shall be responsible for making all calculations
called for under the Notes. These calculations include, but are not limited to, determinations of the Last Reported Sale Prices of the Common Stock, the Daily VWAPs, accrued interest payable on the Notes, any Additional Interest on the Notes, the
Conversion Rate of the Notes, Buy-In Price, Maximum Percentage, Excess Shares, . The Company shall make all these calculations in good faith and, absent manifest error, the Company’s calculations shall be
final and binding on Holders of Notes. The Company shall provide a schedule of its calculations to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely conclusively upon the accuracy of the
Company’s calculations without independent verification. The Trustee will forward the Company’s calculations to any registered Holder of Notes upon the written request of that Holder at the sole cost and expense of the Company. Neither the
Trustee nor the Conversion Agent will have any responsibility to make calculations under this Indenture, nor will either of them have any responsibility to monitor the Company’s stock or trading price, determine whether the conditions to
convertibility of the Notes have been met or determine whether the circumstances requiring changes to the Conversion Rate have occurred. 

Section 17.16 USA PATRIOT Act. The parties hereto acknowledge that in accordance with Section 326 of the USA PATRIOT Act, the
Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that establishes a relationship or
opens an account with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the USA PATRIOT Act. 

Section 17.17 Tax Withholding. The Company or the Trustee, as the case may be, shall be entitled to make a deduction or
withholding from any payment which it makes under this Indenture for or on account of any present or future taxes, duties or charges if and to the extent so required by any applicable law and any current or future regulations or agreements
thereunder or official interpretations thereof or any law implementing an intergovernmental approach thereto, in each case, that a Holder is subject to pursuant to the Indenture (“Applicable Tax Law”), or by virtue of the relevant
Holder failing to satisfy any certification or other requirements under Applicable Tax Law in respect of the Notes, in which event the Company or the Trustee, as the case may be, shall make such payment after such withholding or deduction has been
made and shall account to the relevant authorities for the amount so withheld or deducted and shall have no obligation to gross up any payment hereunder or pay any additional amount as a result of such withholding tax. 

  
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 Notwithstanding any other provision of this Indenture, if the Company or other applicable
withholding agent pays withholding taxes or backup withholding on behalf of the Holder as a result of an adjustment or the nonoccurrence of an adjustment to the Conversion Rate, the Company or other applicable withholding agent may, at its option,
withhold from or set off such payments against payments of cash and shares of Common Stock on the Note (or any payments on the Company’s Common Stock) or sales proceeds received by or other funds or assets of the Holder. 

[Remainder of page intentionally left blank] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed as of
the date first written above. 
  

			
	[LIGHTNING EMOTORS, INC.]


 
			
		
	By:	 	  

		 	Name:
		 	Title:


 
			
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee


 
			
		
	By:	 	  

		 	Name:
		 	Title:














 EXHIBIT A 

[FORM OF FACE OF NOTE] 
 [INCLUDE
FOLLOWING LEGEND IF A GLOBAL NOTE] 
 [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY,
A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT HEREUNDER IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] 
 [INCLUDE FOLLOWING LEGEND IF A
RESTRICTED SECURITY] 
 [THIS SECURITY AND THE COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL
INTEREST HEREIN, THE ACQUIRER: 
 (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED
INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2) AGREES FOR THE BENEFIT OF [LIGHTNING EMOTORS, INC.] (THE “COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE
OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT
OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT: 
 (A)
TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 
 (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE
SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF SUCH TRANSFER, OR 
 (C) TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A
QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM
REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

  
 A-1 













 PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE
COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER FOR THE COMPANY TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE
WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

NO AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY OR PERSON THAT HAS BEEN AN AFFILIATE (AS DEFINED IN RULE 144
UNDER THE SECURITIES ACT) OF THE COMPANY DURING THE IMMEDIATELY PRECEDING THREE MONTHS MAY PURCHASE, OTHERWISE ACQUIRE OR HOLD THIS SECURITY OR A BENEFICIAL INTEREST HEREIN.]1 

 

	1 	 Subject to the procedures of the Depositary, the Restrictive Legend shall be deemed removed from the face of
this Note without further action by the Company, Trustee or the Holders of this Note at such time and in the manner provided under Section 2.05 of the Indenture. 



  
 A-2 













 [Lightning eMotors, Inc.] 

7.50% Convertible Senior Note due 2024 
 No.
[     ] 
 [Initially]2 $[     ] 

CUSIP No. [         ]3 

[Lightning eMotors, Inc.], a corporation duly organized and validly existing under the laws of the State of Delaware (the
“Company,” which term includes any successor corporation or other entity under the Indenture referred to on the reverse hereof), for value received hereby promises to pay to [CEDE & CO.]4 [     ]5, or registered assigns, the principal sum [as set forth in the “Schedule of Exchanges of
Notes” attached hereto]6 [of $[     ]]7, which amount, taken together with the principal amounts of all other
outstanding Notes, shall not, unless permitted by the Indenture, exceed $100,000,000 in aggregate at any time, in accordance with the rules and procedures of the Depositary, on [ ], 2024, and interest thereon as set forth below. 

This Note shall bear interest at the rate of 7.50% per year from
[                ], 2021, or from the most recent date to which interest had been paid or provided for to, but excluding, the next scheduled Interest Payment Date until
[                ], 2024. Interest is payable semi-annually in arrears on each
[                ] and [                ] of each year (or, if such day is not a Business
Day, the next succeeding Business Day), commencing on [                ], 2021, to Holders of record at the close of business on the preceding May 1 and
November 1 (whether or not such day is a Business Day), respectively. Additional Interest will be payable as set forth in Section 6.03 of the within-mentioned Indenture, and any reference to interest on, or in respect of, any Note therein
shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to Section 6.03, and any express mention of the payment of Additional Interest in any provision therein shall not be
construed as excluding Additional Interest in those provisions thereof where such express mention is not made. 
 Any Defaulted Amounts
shall accrue interest per annum at the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, the relevant payment date to, but excluding, the date on which such Defaulted Amounts shall have been
paid by the Company, at its election, in accordance with Section 2.03(c) of the Indenture. 
 The Company shall pay the principal of
and interest on this Note, if and so long as such Note is a Global Note, in immediately available funds to the Depositary or its nominee, as the case may be, as the registered Holder of such Note. As provided in and subject to the provisions of the
Indenture, the Company shall pay the principal of any Notes (other than Notes that are Global Notes) at the office or agency designated by the Company for that purpose. The Company has initially designated the Trustee as its Paying Agent and Note
Registrar in respect of the Notes and the Corporate Trust Office located in the United States of America as a place where Notes may be presented for payment or for registration of transfer and exchange. 

 

	2 	 Include if a global note. 



	3 	 Subject to the procedures of the Depositary, at such time as the Company notifies the Trustee that the
Restrictive Legend is to be removed in accordance with the Indenture, the CUSIP number for this Note shall be deemed to be [ ]. 



	4 	 Include if a global note. 



	5 	 Include if a physical note. 



	6 	 Include if a global note. 



	7 	 Include if a physical note. 



  
 A-3 













 Reference is made to the further provisions of this Note set forth on the reverse hereof,
including, without limitation, provisions giving the Holder of this Note the right to convert this Note into shares of Common Stock on the terms and subject to the limitations set forth in the Indenture. Such further provisions shall for all
purposes have the same effect as though fully set forth at this place. 
 This Note, and any claim, controversy or dispute arising under
or related to this Note, shall be construed in accordance with and governed by the laws of the State of New York (without regard to the conflicts of laws provisions thereof). 

In the case of any conflict between this Note and the Indenture, the provisions of the Indenture shall control and govern. 

This Note shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been signed
manually by the Trustee or a duly authorized authenticating agent under the Indenture. 
 [Remainder of page intentionally left blank]


  
 A-4 













 IN WITNESS WHEREOF, the Company has caused this Note to be duly executed. 

 

			
	[LIGHTNING EMOTORS, INC.]
		
	By:	 	  

		 	Name:
		 	Title:


 Dated: 
 TRUSTEE’S
CERTIFICATE OF AUTHENTICATION 
 WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee, certifies that this is one of the Notes described in the within-named
Indenture. 
  

			
	By:	 	  

		 	Authorized Signatory


  
 A-5 













 [FORM OF REVERSE OF NOTE] 

[Lightning eMotors, Inc.] 
 7.50%
Convertible Senior Note due 2024 
 This Note is one of a duly authorized issue of Notes of the Company, designated as its 7.50% Convertible
Senior Notes due 2024 (the “Notes”), limited to the aggregate principal amount of $100,000,000 all issued or to be issued under and pursuant to an Indenture dated as of
[                ], 2021 (the “Indenture”), between the Company and Wilmington Trust, National Association, as trustee (the “Trustee”),
to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the Holders of the Notes.
Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in the Indenture. Capitalized terms used in this Note and not defined in this Note shall have the respective meanings set forth in the
Indenture. 
 In case certain Events of Default shall have occurred and be continuing, the principal of, and interest on, all Notes may be
declared, by either the Trustee or Holders of at least 25% in aggregate principal amount of Notes then outstanding, and upon said declaration shall become, due and payable, in the manner, with the effect and subject to the conditions and certain
exceptions set forth in the Indenture. 
 Subject to the terms and conditions of the Indenture, the Company will make all payments and
deliveries in respect of the Fundamental Change Repurchase Price on the Fundamental Change Repurchase Date and the principal amount on the Maturity Date, as the case may be, to the Holder who surrenders a Note to a Paying Agent to collect such
payments in respect of the Note. The Company will pay cash amounts in money of the United States that at the time of payment is legal tender for payment of public and private debts. 

The Indenture contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the Holders of the
Notes, and in certain other circumstances, with the consent of the Holders of not less than a majority in aggregate principal amount of the Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental indentures
modifying the terms of the Indenture and the Notes as described therein. It is also provided in the Indenture that, subject to certain exceptions, the Holders of a majority in aggregate principal amount of the Notes at the time outstanding may on
behalf of the Holders of all of the Notes waive any past Default or Event of Default under the Indenture and its consequences. 

Notwithstanding any other provision of the Indenture or any provision of this Note, each Holder shall have the contractual right to receive
payment or delivery, as the case may be, of (x) the principal (including the Fundamental Change Repurchase Price, if applicable) of, (y) accrued and unpaid interest, if any, on, and (z) the consideration due upon conversion of, this
Note, on or after the respective due dates expressed or provided for in this Note or in the Indenture, and the contractual right to institute suit for the enforcement of any such payment or delivery, as the case may be, on or after such respective
dates, shall not be amended without the consent of each Holder. 
 The Notes are issuable in registered form without coupons in minimum
denominations of $1,000 principal amount and integral multiples in excess thereof. At the office or agency of the Company referred to on the face hereof, and in the manner and subject to the limitations provided in the Indenture, Notes may be
exchanged for a like aggregate principal amount of Notes of other authorized denominations, without payment of any service charge but, if required by the Company or Trustee, with payment of a sum sufficient to cover any transfer or similar tax that
may be imposed in connection therewith as a result of the name of the Holder of the new Notes issued upon such exchange of Notes being different from the name of the Holder of the old Notes surrendered for such exchange. 

  
 A-6 













 The Notes are not subject to redemption through the operation of any sinking fund or
otherwise. 
 Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder’s option, to require the Company to
repurchase for cash all of such Holder’s Notes or any portion thereof (in principal amounts of $1,000 or integral multiples thereof) on the Fundamental Change Repurchase Date at a price equal to the Fundamental Change Repurchase Price. 

Subject to the provisions of the Indenture, the Holder hereof has the right, at its option, during certain periods and upon the occurrence of
certain conditions specified in the Indenture, prior to the close of business on the second Scheduled Trading Day immediately preceding the Maturity Date, to convert any Notes or portion thereof that is $1,000 or an integral multiple thereof, into
shares of Common Stock at the Conversion Rate specified in the Indenture, as adjusted from time to time as provided in the Indenture. 

  
 A-7 













 ABBREVIATIONS 

The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full
according to applicable laws or regulations: 
 TEN COM = as tenants in common 

UNIF GIFT MIN ACT = Uniform Gifts to Minors Act 
 CUST =
Custodian 
 TEN ENT = as tenants by the entireties 
 JT TEN =
joint tenants with right of survivorship and not as tenants in common Additional abbreviations may also be used though not in the above list. 

  
 A-8 













 SCHEDULE A8 

SCHEDULE OF EXCHANGES OF NOTES 

[Lightning eMotors, Inc.] 
 7.50%
Convertible Senior Notes due 2024 
 The initial principal amount of this Global Note is ONE HUNDRED MILLION DOLLARS ($100,000,000). The
following increases or decreases in this Global Note have been made: 
  

									
	Date of exchange	  	Amount of decrease in principal amount of this Global Note	  	Amount of increase in principal amount of this Global Note	  	Principal amount of this Global Note following such decrease or increase	  	Signature of authorized signatory of Trustee or Custodian
	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  


  

	8 	 Include if a global note. 



  
 A-9 













 ATTACHMENT 1 

[FORM OF NOTICE OF CONVERSION] 
  

	To:	 Wilmington Trust, National Association 



Global Capital Markets 
 50 South
Sixth Street, Suite 1290 
 Minneapolis, MN 55402 

Attention: [Lighting eMotors] Notes Administrator 

The undersigned registered owner of this Note hereby exercises the option to convert this Note, or the portion hereof (that is $1,000
principal amount or an integral multiple thereof) below designated, into shares of Common Stock in accordance with the terms of the Indenture referred to in this Note, and directs that any cash payable and any shares of Common Stock issuable and
deliverable upon such conversion, together with any cash for any fractional share, and any Notes representing any unconverted principal amount hereof, be issued and delivered to the registered Holder hereof unless a different name has been indicated
below. If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person other than the undersigned, the undersigned will pay all documentary, stamp or similar issue or transfer taxes, if any in
accordance with Section 14.02(d) and Section 14.02(e) of the Indenture. Any amount required to be paid to the undersigned on account of interest accompanies this Note. Capitalized terms used herein but not defined shall have the meanings
ascribed to such terms in the Indenture. 
  

							
	Dated:	 	  
	 		 	  

				
		 		 		 	  

		 		 		 	Signature
			
	  
	 		 	
	Signature Guarantee	 		 	

 Signature(s) must be guaranteed by 

an eligible Guarantor Institution 
 (banks, stock brokers, savings
and 
 loan associations and credit unions) 
 with membership in
an approved 
 signature guarantee medallion program 
 pursuant
to Securities and Exchange 
 Commission Rule 17Ad-15 if shares of Common Stock are to 

be issued, or 
 Notes are to be delivered, other than 

to and in the name of the registered holder. 
 Fill in for
registration of shares if to be issued, 
 and Notes if to be delivered, other than to and in the name 

of the registered holder: 
  

	
	  
 (Name)



  
 1 














	
	  
 (Street Address)

	
	  

	(City, State and Zip Code)
	Please print name and address

  

	
	Principal amount to be converted (if less than all):
	
	$__________,000
	
	NOTICE: The above signature(s) of the Holder(s) hereof must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever.
	  

	Social Security or Other Taxpayer
	Identification Number



  
 2 













 ATTACHMENT 2 

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE] 

To: Paying Agent 
 The undersigned registered
owner of this Note hereby acknowledges receipt of a notice from [Lightning eMotors, Inc.] (the “Company”) as to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Repurchase Date
and requests and instructs the Company to pay to the registered holder hereof in accordance with Section 15.02 of the Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion thereof (that is $1,000
principal amount or an integral multiple thereof) below designated, and (2) if such Fundamental Change Repurchase Date does not fall during the period after a Regular Record Date and on or prior to the corresponding Interest Payment Date,
accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental Change Repurchase Date. Capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the Indenture. 

In the case of Physical Notes, the certificate numbers of the Notes to be repurchased are as set forth below: 

Dated: __________ 
  

	
	  
 Signature(s)

	
	  

	Social Security or Other Taxpayer Identification Number
	Principal amount to be repaid (if less than all):
	$__________,000
	NOTICE: The above signature(s) of the Holder(s) hereof must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever.



  
 1 













 ATTACHMENT 3 

[FORM OF ASSIGNMENT AND TRANSFER] 
 For value
received _______________________ hereby sell(s), assign(s) and transfer(s) unto _______________________ (Please insert social security or Taxpayer Identification Number of assignee) the within Note, and hereby irrevocably constitutes and appoints
_______________________ attorney to transfer the said Note on the books of the Company, with full power of substitution in the premises. 

  
 1 














			
	Dated:	 	  

	
	  

	
	  

	Signature(s)

 Signature Guarantee Signature(s) must be guaranteed by an eligible 

Guarantor Institution (banks, stockbrokers, savings 
 and loan
associations and credit unions) with 
 membership in an approved signature guarantee 

medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15 if Notes are to 

be delivered, other than to and in the name of the registered holder. 

NOTICE: The signature on the assignment must 
 correspond with
the name as written upon the face of 
 the Note in every particular without alteration or 

enlargement or any change whatever. 

  
 2 













 EXHIBIT B 

[Form of Warrant Agreement] 

GIGCAPITAL3, INC. 
 and 

CONTINENTAL STOCK TRANSFER & TRUST COMPANY 

AMENDED AND RESTATED WARRANT AGREEMENT 

THIS AMENDED AND RESTATED WARRANT AGREEMENT (this “Agreement”), dated as of ___, 2020, is by and between GigCapital3,
Inc., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (the “Warrant Agent”, also referred to herein as the
“Transfer Agent”). 
 WHEREAS, the Company entered into Unit Purchase Agreements dated as of May 13, 2020 (the
“Unit Purchase Agreements”), with each of GigAcquisitions3 LLC, a Delaware limited liability company (“Sponsor”), Nomura Securities International, Inc. (“Nomura”),
Oppenheimer & Co. Inc. (“Oppenheimer”) and Odeon Capital Group LLC (“Odeon” and, collectively with Sponsor, Nomura and Oppenheimer, the “Founders”), pursuant to which
the Founders have purchased an aggregate of [•] units (the “Private Placement Units”), each such unit comprised of one share of common stock, par value $0.0001 per share (“Common Stock”), of the
Company, and three-fourths of one warrant to purchase one share of Common Stock at an initial exercise price of $11.50 per share of Common Stock (each, a “Founder Warrant”), simultaneously with the closing of the Offering (as
defined below), for a purchase price of $10.00 per unit; 
 WHEREAS, in order to finance the Company’s transaction costs in connection
with an intended initial merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination, involving the Company and one or more businesses (a “Business Combination”), Sponsor
or any of its affiliates, or certain of the Company’s executive officers or directors may loan to the Company funds as the Company may require, of which up to $1,500,000 of such loans may be convertible into up to an additional 150,000 units of
the Company’s equity securities (the “Working Capital Units”), each such Working Capital Unit comprised of one share of one share of Common Stock and three-fourths of one warrant to purchase one share of Common Stock at
an initial exercise price of $11.50 per share of Common Stock (the “Working Capital Warrants”), at a price of $10.00 per Working Capital Unit; 

WHEREAS, on May 18, 2020, the Company completed an initial public offering (the “Offering”) of units of the
Company’s equity securities (the “Public Units” and, together with the Private Placement Units and the Working Capital Units, the “Units”), each such unit comprised of one share of Common Stock
and three-fourths of one redeemable warrant to purchase one share of Common Stock at an initial exercise price of $11.50 per share of Common Stock (the “Public Warrants” and, together with the Founder Warrants and the Working
Capital Warrants, the “Initial Warrants”) and, in connection therewith, issued and delivered up to 15,000,000 Public Warrants to public investors in the Offering; 

WHEREAS, the Company and Warrant Agent entered into that certain Warrant Agreement, dated as of May 18, 2020 (the “Original
Warrant Agreement”), which provides for the form and provisions of the Initial Warrants, the terms upon which they shall be issued and exercised, and the respective rights, limitations of rights, and immunities of the Company, the
Warrant Agent and the holders of the Initial Warrants; 
 WHEREAS, the Company has filed with the Securities and Exchange Commission (the
“Commission”) a registration statement on Form S-1, File No. 333-236626 (the “Registration Statement”), and
prospectus (the “Prospectus”) for the registration, under the Securities Act of 1933, as amended (the “Securities Act”), of the Offering; 

 












 WHEREAS, the Company, Project Power Merger Sub, Inc. (“Merger Sub”),
and Lightning Systems, Inc. (the “Target”) have entered into that certain Business Combination Agreement, dated as of December 10, 2020 (the “Business Combination Agreement”), pursuant to which
the parties thereto shall, among other things, consummate a Business Combination in which Merger Sub shall merge with and into the Target, with the Target surviving such Merger as a wholly-owned subsidiary of the Company, pursuant to
Section 251 of the Delaware General Corporation Law (the “Merger”); 
 WHEREAS, the Company has, concurrently
with entering into the Business Combination Agreement, entered into Subscription Agreements, dated as of December 10, 2020 (the “Subscription Agreements”) with certain investors (the
“Subscribers”), pursuant to which the Subscribers have agreed to subscribe for and purchase, and the Company has agreed to issue and sell to the Subscribers, effective as of immediately prior to the effective time of the
Merger, (a) an aggregate amount of $100,000,000 of unsecured promissory notes convertible into shares of Common Stock at a conversion price of $11.50 per share of Common Stock, and (b) warrants to purchase an aggregate of 8,695,652 shares
of Common Stock for an exercise price of $11.50 per share of Common Stock (the “Note Financing Warrants” and, together with the Initial Warrants, the “Warrants”); 

WHEREAS, each whole Warrant entitles (or, in the case of the Note Financing Warrants, will upon its issuance pursuant to the Subscription
Agreements entitle) the holder thereof to purchase one share of Common Stock for $11.50 per share, subject to adjustment as described herein; 

WHEREAS, the Company desires the Warrant Agent to act on behalf of the Company, and the Warrant Agent is willing to so act, in connection with
the issuance, registration, transfer, exchange, redemption and exercise of the Warrants; 
 WHEREAS, the Company desires to provide for the
form and provisions of the Warrants, the terms upon which they shall be issued and exercised, and the respective rights, limitation of rights, and immunities of the Company, the Warrant Agent, and the holders of the Warrants; 

WHEREAS, in connection with the foregoing, the Company and the Warrant Agent desire to amend and restate the Original Warrant Agreement in the
form of this Agreement, in accordance with Section 9.8 of the Original Warrant Agreement, such that this Agreement will take effect and supersede the Original Warrant Agreement in its entirety as of immediately prior to the effective time of
the Merger (concurrently with the issuance of the Note Financing Warrants); and 
 WHEREAS, all acts and things have been done and performed
which are necessary to make the Warrants, when executed on behalf of the Company and countersigned by or on behalf of the Warrant Agent, as provided herein, the valid, binding and legal obligations of the Company, and to authorize the execution and
delivery of this Agreement. 
 NOW, THEREFORE, in consideration of the mutual agreements herein contained, the parties hereto agree as
follows: 
 1. Appointment of Warrant Agent. The Company hereby appoints the Warrant Agent to act as agent for the Company for the
Warrants, and the Warrant Agent hereby accepts such appointment and agrees to perform the same in accordance with the terms and conditions set forth in this Agreement. 

2. Warrants. 
 2.1 Form
of Warrant. Each Warrant shall initially be issued in registered form only. 

  
 2 













 2.2 Effect of Countersignature. If a physical certificate is issued, unless and until
countersigned by the Warrant Agent pursuant to this Agreement, a Warrant shall be invalid and of no effect and may not be exercised by the holder thereof. 

2.3 Registration. 
 2.3.1
Warrant Register. The Warrant Agent shall maintain books (the “Warrant Register”), for the registration of original issuance and the registration of transfer of the Warrants. Upon the initial issuance of the Warrants
in book-entry form, the Warrant Agent shall issue and register the Warrants in the names of the respective holders thereof in such denominations and otherwise in accordance with instructions delivered to the Warrant Agent by the Company. Ownership
of beneficial interests in the Public Warrants shall be shown on, and the transfer of such ownership shall be effected through, records maintained by institutions that have accounts with the Depositary (such institution, with respect to a Warrant in
its account, a “Participant”). 
 If The Depository Trust Company (the “Depositary”)
subsequently ceases to make its book-entry settlement system available for the Public Warrants, the Company may instruct the Warrant Agent regarding making other arrangements for book-entry settlement. In the event that the Public Warrants are not
eligible for, or it is no longer necessary to have the Public Warrants available in, book-entry form, the Warrant Agent shall provide written instructions to the Depositary to deliver to the Warrant Agent for cancellation each book-entry Public
Warrant, and the Company shall instruct the Warrant Agent to deliver to the Depositary definitive certificates in physical form evidencing such Warrants which shall be in the form annexed hereto as Exhibit A. Notwithstanding anything herein
to the contrary, any Initial Warrant, or portion thereof, may be issued as part of, and be represented by, a Unit. Any Initial Warrant so issued shall have the same terms, force and effect as a certificated Initial Warrant that has been duly
countersigned by the Warrant Agent in accordance with the terms of this Agreement. 
 Certificates representing the Warrants, if issued,
shall be signed by, or bear the facsimile signature of, the Chairman of the Board, President, Chief Executive Officer, Chief Financial Officer, Secretary or other executive officer of the Company. In the event the person whose facsimile signature
has been placed upon any Warrant shall have ceased to serve in the capacity in which such person signed the Warrant before such Warrant is issued, it may be issued with the same effect as if he or she had not ceased to be such at the date of
issuance. Each certificate representing a Founder Warrant or Working Capital Warrant held by the Sponsor shall bear the legend set forth in Exhibit B hereto. Each certificate representing a Founder Warrant or Working Capital Warrant held by a
Founder (other than the Sponsor) shall bear the legend set forth in Exhibit C hereto. Each certificate representing a Note Financing Warrant shall bear the legend set forth in Exhibit D hereto. 

2.3.2 Registered Holder. Prior to due presentment for registration of transfer of any Warrant, the Company and the Warrant Agent may
deem and treat the person in whose name such Warrant is registered in the Warrant Register (the “Registered Holder”) as the absolute owner of such Warrant and of each Warrant represented thereby, for the purpose of any
exercise thereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. 

2.4 Detachability of Warrants. The Common Stock and Warrants comprising the Public Units trade separately. 

2.5 No Fractional Warrants Other Than as Part of Units. The Company shall not issue fractional Warrants other than as part of the
Units, each of which is comprised of one share of Common Stock and three-fourths of one Initial Warrant. If, upon the detachment of Initial Warrants from Units or otherwise, a holder of Initial Warrants would be entitled to receive a fractional
Initial Warrant, the Company shall round down to the nearest whole number the number of Initial Warrants to be issued to such holder. 

  
 3 













 2.6 Founder Warrants and Working Capital Warrants. The Founder Warrants and the
Working Capital Warrants shall be identical to the Public Warrants, except that so long as they are held by a Founder or any of its Permitted Transferees (as defined below) the Founder Warrants and the Working Capital Warrants: (i) may be
exercised for cash or, pursuant to subsection 3.3.1(c) hereof, on a cashless basis, (ii) shall be subject to the Lock-up (as defined below), and (iii) in accordance with
Section 6.4 hereof shall not be redeemable by the Company; provided, however, that in the case of (ii), the Founder Warrants, the Working Capital Warrants and any shares of Common Stock held by a Founder or
its Permitted Transferees and issued upon exercise of the Founder Warrants and the Working Capital Warrants may be transferred by the holders thereof: 

(a) amongst the Sponsor and its affiliates, to the Company’s executive officers or directors, or to any affiliate or family member of any
of the Company’s executive officers or directors; 
 (b) in the case of an entity, as a distribution to its partners, stockholders or
members upon its liquidation; 
 (c) in the case of an individual, (i) by bona fide gift to such person’s immediate family or to a
trust, the beneficiary of which is a member of such person’s immediate family, an affiliate of such person or to a charitable organization, (ii) by virtue of the laws of descent and distribution upon death of such person, or
(iii) pursuant to a qualified domestic relations order; 
 (d) by certain pledges to secure obligations incurred in connection with
purchases of the Company’s securities; 
 (e) through private sales or transfers made in connection with the consummation of the
Company’s initial Business Combination at prices no greater than the price at which the Founder Warrants were originally purchased; 

(f) in the case of a Founder (other than the Sponsor), to such Founder’s affiliates or any entity controlled by such Founder; or 

(g) to the Company for no value for cancellation in connection with the consummation of the Business Combination; provided,
however, that, in each case (except clause (g)), these transferees (the “Permitted Transferees”) shall enter into a written agreement with the Company agreeing to be bound by the transfer restrictions agreed to by the
original holder in connection with the purchase of the securities being transferred. 
 For the purposes of this Agreement, the term
“Lock-up” means the restrictions on transfer set forth in Section 7 of the Unit Purchase Agreements. 

2.7 Exercise Period for Certain Founders. Notwithstanding anything herein to the contrary, any Founder Warrants and the Working Capital
Warrants held by the Founders (other than the Sponsor) or their respective designees or affiliates shall not be exercisable on the date immediately following the fifth anniversary of the effective date of the Registration Statement. 

2.8 Note Financing Warrants. The Note Financing Warrants shall be identical to the Public Warrants, except that the Note Financing
Warrants in accordance with Section 6.5 hereof shall not be redeemable by the Company. 
 3. Terms and Exercise
of Warrants.  
 3.1 Exercise Price. Each whole Warrant shall, when countersigned by the Warrant Agent, entitle the
Registered Holder thereof, subject to the provisions of such Warrant and of this Agreement, to purchase from the Company the number of shares of Common Stock stated therein, at the price of $11.50 per share, subject to the adjustments provided in
Section 4 hereof and in the 

  
 4 













 
last sentence of this Section 3.1. The term “Exercise Price” as used in this Agreement shall mean the price per share at which shares of Common
Stock may be purchased at the time a Warrant is exercised. The Company in its sole discretion may lower the Exercise Price at any time prior to the Expiration Date (as defined below) for a period of not less than twenty (20) Business Days,
provided, that the Company shall provide at least twenty (20) days prior written notice of such reduction to Registered Holders of the Warrants and, provided further that any such reduction shall be identical among all of the Warrants. 

3.2 Duration of Warrants. A Warrant may be exercised only during the period (the “Exercise Period”) commencing
on the later of: (i) the date that is thirty (30) days after the first date on which the Company completes its initial Business Combination, or (ii) the date that is twelve (12) months from the date of the closing of the
Offering, and terminating at 5:00 p.m., New York City time on the earlier to occur of: (x) the date that is five (5) years after the date on which the Company completes its initial Business Combination, or (y) other than with respect
to the Founder Warrants, the Working Capital Warrants and the Note Financing Warrants to the extent then held, directly or indirectly, by the original purchasers thereof or their Permitted Transferees, the Redemption Date (as defined below) as
provided in Section 6.2 hereof (the “Expiration Date”); provided, however, that the exercise of any Warrant shall be subject to the satisfaction of any applicable conditions, as set
forth in subsection 3.3.2 below, with respect to an effective registration statement. Except with respect to the right to receive the Redemption Price (as defined below) (other than with respect to a Founder Warrant, a Working Capital Warrant
or a Note Financing Warrant to the extent then held, directly or indirectly, by the original purchasers thereof or their Permitted Transferees) in the event of a redemption (as set forth in Section 6 hereof), each Warrant
(other than a Founder Warrant, Working Capital Warrant or Note Financing Warrant in the event of a redemption to the extent then held, directly or indirectly, by the original purchasers thereof or their Permitted Transferees) not exercised on or
before the Expiration Date shall become void, and all rights thereunder and all rights in respect thereof under this Agreement shall cease at 5:00 p.m. New York City time on the Expiration Date. The Company in its sole discretion may extend the
duration of the Warrants by delaying the Expiration Date; provided, that the Company shall provide at least twenty (20) days prior written notice of any such extension to Registered Holders of the Warrants and, provided further that any
such extension shall be identical in duration among all the Warrants. 
 3.3 Exercise of Warrants.  

3.3.1 Payment. Subject to the provisions of the Warrant and this Agreement, a Warrant, when countersigned by the Warrant Agent, may be
exercised by the Registered Holder thereof by surrendering it, at the office of the Warrant Agent, or at the office of its successor as Warrant Agent, in the Borough of Manhattan, City and State of New York, with the subscription form, as set forth
in the Warrant, duly executed, and by paying in full the Exercise Price for each share of Common Stock as to which the Warrant is exercised and any and all applicable taxes due in connection with the exercise of the Warrant, the exchange of the
Warrant for the shares of Common Stock and the issuance of such Common Stock, as follows: 
 (a) in lawful money of the United States, in
good certified check or good bank draft payable to the order of the Warrant Agent; 
 (b) in the event of a redemption pursuant to
Section 6 hereof in which the Company’s board of directors (the “Board”) has elected to require all holders of the Warrants to exercise such Warrants on a “cashless basis,” by
surrendering the Warrants for that number of shares of Common Stock equal to the quotient obtained by dividing (x) the product of the number of shares of Common Stock underlying the Warrants, multiplied by the difference between the Exercise
Price and the Fair Market Value, as defined in this subsection 3.3.1(b) by (y) the Fair Market Value. Solely for purposes of this subsection 3.3.1(b) and Section 6.3, the “Fair Market
Value” shall mean the average reported last sale price of the Common Stock for the five (5) trading days ending on the third trading day prior to the date on which the notice of redemption is sent to the holders of the Warrants,
pursuant to Section 6 hereof; 

  
 5 













 (c) with respect to any Founder Warrant or Working Capital Warrant, so long as such Founder
Warrant or Working Capital Warrant is held by a Founder or a Permitted Transferee of a Founder, by surrendering such Founder Warrants or Working Capital Warrants for that number of shares of Common Stock equal to the quotient obtained by dividing
(x) the product of the number of shares of Common Stock underlying the Warrants, multiplied by the difference between the Exercise Price and the Fair Market Value, as defined in this subsection 3.3.1(c), by (y) the Fair Market
Value. Solely for purposes of this subsection 3.3.1(c), the “Fair Market Value” shall mean the average reported last sale price of the Common Stock for the five (5) trading days ending on the third trading day
prior to the date on which notice of exercise of the Warrant is sent to the Warrant Agent; or 
 (d) as provided in
Section 7.4 hereof. 
 Notwithstanding anything to the contrary contained herein, to the extent that a holder that
holds Warrants indirectly through a Participant submits irrevocable instructions to exercise such Warrant, such holder shall be deemed for purposes of Regulation SHO to have exercised such Warrant at the time of delivery of such instructions,
regardless of when shares of Common Stock are delivered to such holder or its Participant. 
 3.3.2 Issuance of Shares of Common Stock on
Exercise. As soon as practicable after the exercise of any Warrant and the clearance of the funds in payment of the Exercise Price (if payment is pursuant to subsection 3.3.1(a)), the Company shall issue to the Registered Holder of such
Warrant a book-entry position or certificate, as applicable, for the number of full shares of Common Stock to which he, she or it is entitled, registered in such name or names as may be directed by him, her or it, and if such Warrant shall not have
been exercised in full, a new book-entry position or countersigned Warrant, as applicable, for the number of shares of Common Stock as to which such Warrant shall not have been exercised. Notwithstanding the foregoing, the Company shall not be
obligated to deliver any shares of Common Stock pursuant to the exercise of a Public Warrant or a Note Financing Warrant and shall have no obligation to settle such Public Warrant or Note Financing Warrant exercise unless a registration statement
under the Securities Act with respect to the shares of Common Stock underlying the Public Warrants or Note Financing Warrant is then effective and a prospectus relating thereto is current, subject to the Company’s satisfying its obligations
under Section 7.4. No Public Warrant or Note Financing Warrant shall be exercisable and the Company shall not be obligated to issue shares of Common Stock upon exercise of a Public Warrant or a Note Financing Warrant unless
the Common Stock issuable upon such Public Warrant exercise has been registered, qualified or deemed to be exempt from registration or qualification under the securities laws of the state of residence of the Registered Holder of the Public Warrants
or Note Financing Warrants. In the event that the conditions in the two immediately preceding sentences are not satisfied with respect to a Public Warrant or a Note Financing Warrant, the holder of such Warrant shall not be entitled to exercise such
Public Warrant or Note Financing Warrant and such Public Warrant or Note Financing Warrant may have no value and expire worthless. In such case the purchaser of a Public Unit containing such Public Warrant shall have paid the full purchase price for
the Public Unit solely for the share of Common Stock underlying such Public Unit. In no event will the Company be required to net cash settle the Public Warrant or the Note Financing Warrant exercise. The Company may require holders of Public
Warrants or Note Financing Warrants to settle the Public Warrant or Note Financing Warrant on a “cashless basis” pursuant to Section 7.4. If, by reason of any exercise of Warrants on a “cashless basis”,
the holder of any Warrant would be entitled, upon the exercise of such Warrant, to receive a fractional interest in a share of Common Stock, the Company shall round down to the nearest whole number, the number of shares of Common Stock to be issued
to such holder. As used in this Agreement, “trading day” means any day on which the Common Stock is traded on a national securities exchange or quoted for trading on one or more OTC Markets. 

  
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 3.3.3 Valid Issuance. All shares of Common Stock issued upon the proper exercise of
a Warrant in conformity with this Agreement shall be validly issued, fully paid and non-assessable. 

3.3.4 Date of Issuance. Each person in whose name any book-entry position or certificate, as applicable, for shares of Common Stock is
issued shall for all purposes be deemed to have become the holder of record of such shares of Common Stock on the date on which the Warrant, or book-entry position representing such Warrant, was surrendered and payment of the Exercise Price was
made, irrespective of the date of delivery of such certificate in the case of a certificated Warrant, except that, if the date of such surrender and payment is a date when the share transfer books of the Company or book-entry system of the Warrant
Agent are closed, such person shall be deemed to have become the holder of such shares of Common Stock at the close of business on the next succeeding date on which the share transfer books or book-entry system are open. 

3.3.5 Maximum Percentage. A holder of a Warrant may notify the Company in writing in the event it elects to be subject to the
provisions contained in this subsection 3.3.5; however, no holder of a Warrant shall be subject to this subsection 3.3.5 unless he, she or it makes such election. If the election is made by a holder, the Warrant Agent shall not
effect the exercise of the holder’s Warrant, and such holder shall not have the right to exercise such Warrant, to the extent that after giving effect to such exercise, such person (together with such person’s affiliates), to the Warrant
Agent’s actual knowledge, would beneficially own in excess of 9.8% (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such exercise. For purposes of the foregoing
sentence, the aggregate number of shares of Common Stock beneficially owned by such person and its affiliates shall include the number of shares of Common Stock issuable upon exercise of the Warrant with respect to which the determination of such
sentence is being made, but shall exclude shares of Common Stock that would be issuable upon (x) exercise of the remaining, unexercised portion of the Warrant beneficially owned by such person and its affiliates and (y) exercise or
conversion of the unexercised or unconverted portion of any other securities of the Company beneficially owned by such person and its affiliates (including, without limitation, any convertible notes or convertible preferred stock or warrants)
subject to a limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with
Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). For purposes of the Warrant, in determining the number of outstanding shares of Common Stock, the holder may rely on the number of
outstanding shares of Common Stock as reflected in (1) the Company’s most recent annual report on Form 10-K, quarterly report on Form 10-Q, current report on
Form 8-K or other public filing with the Commission as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or Transfer Agent setting forth the
number of shares of Common Stock outstanding. For any reason at any time, upon the written request of the holder of the Warrant, the Company shall, within two (2) Business Days, confirm orally and in writing to such holder the number of shares
of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of equity securities of the Company by the holder and its affiliates since the date
as of which such number of outstanding shares of Common Stock was reported. By written notice to the Company, the holder of a Warrant may from time to time increase or decrease the Maximum Percentage applicable to such holder to any other percentage
specified in such notice; provided, however, that any such increase shall not be effective until the sixty-first (61st) day after such notice is delivered to the Company. 

  
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 4. Adjustments. 

4.1 Stock Dividends.  

4.1.1 Split-Ups. If after the date hereof, and subject to the provisions of
Section 4.6 below, the number of outstanding shares of Common Stock is increased by a stock dividend payable in shares of Common Stock, or by a split-up of shares of Common Stock or
other similar event, then, on the effective date of such stock dividend, split-up or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be increased in proportion to
such increase in the outstanding shares of Common Stock. 
 4.1.2 Extraordinary Dividends. If the Company, at any time while the
Warrants are outstanding and unexpired, shall pay a dividend or make a distribution in cash, securities or other assets to the holders of the Common Stock on account of such shares of Common Stock (or other shares of the Company’s capital stock
into which the Warrants are convertible) (an “Extraordinary Dividend”), then the Exercise Price shall be decreased, effective immediately after the effective date of such Extraordinary Dividend, by the amount of cash and/or
the fair market value (as determined by the Board, in good faith) of any securities or other assets paid on each share of Common Stock in respect of such Extraordinary Dividend; provided, however, that none of the following shall be deemed an
Extraordinary Dividend for purposes of this provision: (a) any adjustment described in subsection 4.1.1 above, (b) any cash dividend or cash distribution which, when combined on a per share basis with the per share amounts of all other
cash dividends and cash distributions paid on the Common Stock during the 365-day period ending on the date of declaration of such dividend or distribution does not exceed $0.50 (as adjusted to appropriately
reflect any of the events referred to in other subsections of this Section 4 and excluding cash dividends or cash distributions that resulted in an adjustment to the Exercise Price or to the number of shares of Common Stock
issuable on exercise of each Warrant) but only with respect to the amount of the aggregate cash dividend or cash distribution equal to or less than $0.50, (c) any payment to satisfy the redemption rights of the holders of the shares of Common Stock
in connection with a proposed initial Business Combination or (d) any payment in connection with the Company’s liquidation and the distribution of its assets upon its failure to consummate a Business Combination. Solely for purposes of
illustration, if the Company, at a time while the Warrants are outstanding and unexpired, pays a cash dividend of $0.35 and previously paid an aggregate of $0.40 of cash dividends and cash distributions on the Common Stock during the 365-day period ending on the date of declaration of such $0.35 dividend, then the Warrant Price will be decreased, effectively immediately after the effective date of such $0.35 dividend, by $0.25 (the absolute
value of the difference between $0.75 (the aggregate amount of all cash dividends and cash distributions paid or made in such 365-day period, including such $0.35 dividend) and $0.50 (the greater of (x) $0.50
and (y) the aggregate amount of all cash dividends and cash distributions paid or made in such 365-day period prior to such $0.35 dividend)). 

4.2 Aggregation of Shares. If after the date hereof, and subject to the provisions of Section 4.6 hereof, the
number of outstanding shares of Common Stock is decreased by a consolidation, combination, reverse stock split or reclassification of shares of Common Stock or other similar event, then, on the effective date of such consolidation, combination,
reverse stock split, reclassification or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be decreased in proportion to such decrease in outstanding shares of Common Stock. 

4.3 Adjustments in Exercise Price.  

4.3.1 Whenever the number of shares of Common Stock purchasable upon the exercise of the Warrants is adjusted, as provided in subsection
4.1.1 or Section 4.2 above, the Exercise Price shall be adjusted (to the nearest cent) by multiplying such Exercise Price immediately prior to such adjustment by a fraction (x) the numerator of which shall be the
number of shares of Common Stock purchasable upon the exercise of the Warrants immediately prior to such adjustment, and (y) the denominator of which shall be the number of shares of Common Stock so purchasable immediately thereafter. 

  
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 4.3.2 If (a) the Company issues additional shares of Common Stock or equity-linked
securities for capital raising purposes in connection with the closing of the initial Business Combination at an issue price or effective issue price of less than $9.20 per share of Common Stock (with such issue price or effective issue price to be
determined in good faith by the Board, and in the case of any such issuance to Founders or their affiliates, without taking into account any founder shares held by them prior to such issuance), (b) the aggregate gross proceeds from such issuances
represent more than 65% of the total equity proceeds, and interest thereon, available for the funding of the initial Business Combination on the date of the consummation of the initial Business Combination (net of redemptions), and (c) the
volume weighted average trading price of Common Stock during the 20 trading-day period starting on the trading day prior to the day on which the Company consummates the initial Business Combination (such
price, the “Market Value”) is below $9.20 per share, the exercise price of the Warrants will be adjusted (to the nearest cent) to be equal to 115% of the greater of (i) the Market Value or (ii) the price at which
the Company issues the additional shares of Common Stock or equity-linked securities. 
 4.4 Replacement of Securities upon
Reorganization, etc. In case of any reclassification or reorganization of the outstanding shares of Common Stock (other than a change under subsections 4.1.1 or 4.1.2 or Section 4.2 hereof or that solely
affects the par value of such shares of Common Stock), or in the case of any merger or consolidation of the Company with or into another entity or conversion of the Company into another entity (other than a consolidation or merger in which the
Company is the continuing corporation and that does not result in any reclassification or reorganization of the outstanding shares of Common Stock), or in the case of any sale or conveyance to another entity of the assets or other property of the
Company as an entirety or substantially as an entirety in connection with which the Company is dissolved, the holders of the Warrants shall thereafter have the right to purchase and receive, upon the basis and upon the terms and conditions specified
in the Warrants and in lieu of the shares of Common Stock of the Company immediately theretofore purchasable and receivable upon the exercise of the rights represented thereby, the kind and amount of shares of stock or other securities or property
(including cash) receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the holder of the Warrants would have received if such holder had exercised his, her or
its Warrant(s) immediately prior to such event; and if any reclassification also results in a change in shares of Common Stock covered by Sections 4.1 or 4.2, then such adjustment shall be made pursuant to Sections 4.1, 4.2 and this
Section 4.4. The provisions of this Section 4.4 shall similarly apply to successive reclassifications, reorganizations, mergers or consolidations, sales or other transfers. In no event will the
Exercise Price be reduced to less than the par value per share issuable upon exercise of the Warrant. 
 4.5 Notices of Changes in
Warrant. Upon every adjustment of the Exercise Price or the number of shares of Common Stock issuable upon exercise of a Warrant, the Company shall give written notice thereof to the Warrant Agent, which notice shall state the Exercise Price
resulting from such adjustment and the increase or decrease, if any, in the number of shares of Common Stock purchasable at such price upon the exercise of a Warrant, setting forth in reasonable detail the method of calculation and the facts upon
which such calculation is based. Upon the occurrence of any event specified in Sections 4.1, 4.2, 4.3 or 4.4, the Company shall give written notice of the occurrence of such event to each holder of a Warrant, at the last
address set forth for such holder in the Warrant Register, of the record date or the effective date of the event. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such event. 

4.6 No Fractional Shares. Notwithstanding any provision contained in this Agreement to the contrary, the Company shall not issue
fractional shares of Common Stock upon the exercise of Warrants. If, by reason of any adjustment made pursuant to this Section 4, the holder of any Warrant would be entitled, upon the exercise of such Warrant, to receive a
fractional interest in a share, the Company shall, upon such exercise, round down to the nearest whole number the number of shares of Common Stock to be issued to such holder. 

  
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 4.7 Form of Warrant. The form of Warrant need not be changed because of any
adjustment pursuant to this Section 4, and Warrants issued after such adjustment may state the same Exercise Price and the same number of shares of Common Stock as is stated in the Warrants initially issued pursuant to this
Agreement; provided, however, that the Company may at any time in its sole discretion make any change in the form of Warrant that the Company may deem appropriate and that does not affect the substance thereof, and any Warrant
thereafter issued or countersigned, whether in exchange or substitution for an outstanding Warrant or otherwise, may be in the form as so changed. 

4.8 Other Events. In case any event shall occur affecting the Company as to which none of the provisions of preceding subsections of
this Section 4 are strictly applicable, but which would require an adjustment to the terms of the Warrants in order to (i) avoid an adverse impact on the Warrants and (ii) effectuate the intent and purpose of this
Section 4, then, in each such case, the Company shall appoint a firm of independent public accountants, investment banking or other appraisal firm of recognized national standing, which shall give its opinion as to whether
or not any adjustment to the rights represented by the Warrants is necessary to effectuate the intent and purpose of this Section 4 and, if they determine that an adjustment is necessary, the terms of such adjustment,
provided, however, that under no circumstances shall the Warrants be adjusted pursuant to this Section 4.8 as a result of any issuance of securities in connection with the initial Business Combination. The
Company shall adjust the terms of the Warrants in a manner that is consistent with any adjustment recommended in such opinion. 
 5.
Transfer and Exchange of Warrants.  
 5.1 Registration of Transfer. The Warrant Agent shall register the transfer, from
time to time, of any outstanding Warrant upon the Warrant Register, upon surrender of such Warrant for transfer, in the case of certificated Warrants, properly endorsed with signatures properly guaranteed and accompanied by appropriate instructions
for transfer. Upon any such transfer, a new Warrant representing an equal aggregate number of Warrants shall be issued and the old Warrant shall be cancelled by the Warrant Agent. In the case of certificated Warrants, the Warrants so cancelled shall
be delivered by the Warrant Agent to the Company from time to time upon request. 
 5.2 Procedure for Surrender of Warrants. Warrants
may be surrendered to the Warrant Agent, together with a written request for exchange or transfer, and thereupon the Warrant Agent shall issue in exchange therefor one or more new Warrants as requested by the Registered Holder of the Warrants so
surrendered, representing an equal aggregate number of Warrants; provided, however, that in the event that a Warrant surrendered for transfer bears a restrictive legend (as in the case of the Founder Warrants, the Working Capital
Warrants or the Note Financing Warrants), the Warrant Agent shall not cancel such Warrant and issue new Warrants in exchange thereof until the Warrant Agent has received an opinion of counsel for the Company stating that such transfer may be made
and indicating whether the new Warrants must also bear a restrictive legend. 
 5.3 Fractional Warrants. The Warrant Agent shall not
be required to effect any registration of transfer or exchange which shall result in the issuance of a warrant certificate or book-entry position for a fraction of a warrant, except as part of the Units. 

5.4 Service Charges. No service charge shall be made for any exchange or registration of transfer of Warrants. 

5.5 Warrant Execution and Countersignature. The Warrant Agent is hereby authorized to countersign and to deliver, in accordance with the
terms of this Agreement, the Warrants required to be issued pursuant to the provisions of this Section 5, and the Company, whenever required by the Warrant Agent, shall supply the Warrant Agent with Warrants duly executed
on behalf of the Company for such purpose. 

  
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 5.6 Transfer of Warrants. Each transfer of a Unit on the register relating to such
Units shall operate also to transfer the Warrants included in such Unit. This Section 5.6 shall not apply to the Note Financing Warrants as they are not issued in conjunction with Units. 

5.7 Transfer of Note Financing Warrants to Affiliates. The Subscribers shall be permitted to transfer the Note Financing Warrants to
their respective affiliates so long as such affiliates have entered into a written agreement with the Company agreeing to comply with any applicable transfer restrictions under federal and state securities laws in accordance with the provisions of
the Subscription Agreements and this Agreement. 
 6. Redemption. 

6.1 Redemption. Subject to Section 6.4 and Section 6.5 hereof, not less than all of
the outstanding Warrants may be redeemed, at the option of the Company, at any time while they are exercisable and prior to their expiration, at the office of the Warrant Agent, upon notice to the Registered Holders of the Warrants, as described in
Section 6.2 below, at the price of $0.01 per Warrant (the “Redemption Price”), provided that the last sales price of the Common Stock reported has been at least $18.00 per share (subject to
adjustment in compliance with Section 4 hereof), on each of twenty (20) trading days within the thirty (30) trading-day period ending on the third Business Day prior to the date on which
notice of the redemption is given and provided that there is an effective registration statement covering the shares of Common Stock issuable upon exercise of the Warrants, and a current prospectus relating thereto, available throughout the 30-day Redemption Period (as defined in Section 6.2 below) or the Company has elected to require the exercise of the Warrants on a “cashless basis” pursuant to subsection
3.3.1; provided, however, that if and when the Public Warrants become redeemable by the Company, the Company may not exercise such redemption right if the issuance of shares of Common Stock upon exercise of the Public Warrants is not exempt from
registration or qualification under applicable state blue sky laws or the Company is unable to effect such registration or qualification. 

6.2 Date Fixed for, and Notice of, Redemption. In the event that the Company elects to redeem all of the Warrants, the Company shall fix
a date for the redemption (the “Redemption Date”). Notice of redemption shall be mailed by first class mail, postage prepaid, by the Company not less than thirty (30) days prior to the Redemption Date (such 30-day period, the “Redemption Period”) to the Registered Holders of the Warrants to be redeemed at their last addresses as they shall appear on the registration books. Any notice mailed in
the manner herein provided shall be conclusively presumed to have been duly given whether or not the Registered Holder received such notice. 

6.3 Exercise After Notice of Redemption. The Warrants may be exercised, for cash (or on a “cashless basis” in accordance with
subsection 3.3.1(b) of this Agreement) at any time after notice of redemption shall have been given by the Company pursuant to Section 6.2 hereof and prior to the Redemption Date. In the event that the Company
determines to require all holders of Warrants to exercise their Warrants on a “cashless basis” pursuant to subsection 3.3.1, the notice of redemption shall contain the information necessary to calculate the number of shares of
Common Stock to be received upon exercise of the Warrants, including the Fair Market Value (as such term is defined in subsection 3.3.1(b) hereof) in such case. On and after the Redemption Date, the record holder of the Warrants shall have no
further rights except to receive, upon surrender of the Warrants, the Redemption Price. 

  
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 6.4 Exclusion of Founder Warrants and Working Capital Warrants. The Company agrees
that the redemption rights provided in this Section 6 shall not apply to the Founder Warrants or the Working Capital Warrants if at the time of the redemption such Founder Warrants or Working Capital Warrants continue to be
held by the Founders and/or their Permitted Transferees. However, once such Founder Warrants or Working Capital Warrants are transferred (other than to Permitted Transferees under Section 2.7), the Company may redeem the
Founder Warrants and the Working Capital Warrants, provided that the criteria for redemption are met, including the opportunity of the holder of such Founder Warrants or Working Capital Warrants to exercise the Founder Warrants and the Working
Capital Warrants prior to redemption pursuant to Section 6.3. Founder Warrants and Working Capital Warrants that are transferred to persons other than Permitted Transferees shall upon such transfer cease to be Founder
Warrants or Working Capital Warrants, as applicable, and shall become Public Warrants under this Agreement. 
 6.5 Exclusion of Note
Financing Warrants. The Company agrees that the redemption rights provided in this Section 6 shall not apply to the Note Financing Warrants if at the time of the redemption such Note Financing Warrants continue to be
held, either directly or indirectly through one or more Participants, by the Subscribers and/or their Permitted Transferees. However, once such Note Financing Warrants are transferred, the Company may redeem the Note Financing Warrants, provided
that the criteria for redemption are met, including the opportunity of the holder of such Note Financing Warrants to exercise the Note Financing Warrants prior to redemption pursuant to Section 6.3. Note Financing Warrants
that are transferred shall upon such transfer cease to be Note Financing Warrants and shall become Public Warrants under this Agreement. Notwithstanding anything to the contrary contained in this Agreement, Note Financing Warrants that were
originally purchased by a Subscriber shall not be deemed to have been transferred so long as such Note Financing Warrants continue to be held by such Subscriber and/or its Permitted Transferees, in each case directly or indirectly through one or
more Participants. 
 7. Other Provisions Relating to Rights of Holders of Warrants.  

7.1 No Rights as Stockholder. A Warrant does not entitle the Registered Holder thereof to any of the rights of a stockholder of the
Company, including, without limitation, the right to receive dividends, or other distributions, exercise any preemptive rights to vote or to consent or to receive notice as stockholders in respect of the meetings of stockholders or the election of
directors of the Company or any other matter. 
 7.2 Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant is lost, stolen,
mutilated, or destroyed, the Company and the Warrant Agent may on such terms as to indemnity or otherwise as they may in their discretion impose (which shall, in the case of a mutilated Warrant, include the surrender thereof), issue a new Warrant of
like denomination, tenor, and date as the Warrant so lost, stolen, mutilated, or destroyed. Any such new Warrant shall constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated, or destroyed
Warrant shall be at any time enforceable by anyone. 
 7.3 Reservation of Common Stock. The Company shall at all times reserve and
keep available a number of its authorized but unissued shares of Common Stock that shall be sufficient to permit the exercise in full of all outstanding Warrants issued pursuant to this Agreement. 

7.4 Registration of Common Stock; Cashless Exercise at Company’s Option.  

7.4.1 Registration of the Common Stock. The Company agrees that as soon as practicable, but in no event later than fifteen
(15) Business Days after the closing of its initial Business Combination, it shall use its best efforts to file with the Commission a registration statement for the registration, under the Securities Act, of the shares of Common Stock issuable
upon exercise of the Warrants. The Company shall use its best efforts to cause the same to become effective and to maintain the effectiveness of such registration statement, and a current prospectus relating thereto, until the expiration of the
Warrants in accordance with the provisions of this Agreement. If any such registration statement has not been declared effective by the 90th day following the closing of the Business Combination, holders of the Warrants shall have the right,


  
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during the period beginning on the 91st day after the closing of the Business Combination and ending upon such registration statement being declared effective by the Commission, and during any
other period when the Company shall fail to have maintained an effective registration statement covering the shares of Common Stock issuable upon exercise of the Warrants, to exercise such Warrants on a “cashless basis,” by exchanging the
Warrants (in accordance with Section 3(a)(9) of the Securities Act (or any successor rule) or another exemption) for that number of shares of Common Stock equal to the quotient obtained by dividing (x) the product of the number of shares
of Common Stock underlying the Warrants, multiplied by the difference between the Exercise Price and the Fair Market Value (as defined below) by (y) the Fair Market Value. Solely for purposes of this subsection 7.4.1, “Fair
Market Value” shall mean the volume weighted average price of the Common Stock as reported during the five (5) trading day period ending on the trading day prior to the date that notice of exercise is received by the Warrant Agent
from the holder of such Warrants or its securities broker or intermediary. The date that notice of cashless exercise is received by the Warrant Agent shall be conclusively determined by the Warrant Agent. In connection with the “cashless
exercise” of a Public Warrant or a Note Financing Warrant, the Company shall, upon request, provide the Warrant Agent with an opinion of counsel for the Company (which shall be an outside law firm with securities law experience) stating that
(i) the exercise of the Warrants on a cashless basis in accordance with this subsection 7.4.1 is not required to be registered under the Securities Act and (ii) the shares of Common Stock issued upon such exercise shall be freely
tradable under United States federal securities laws by anyone who is not an affiliate (as such term is defined in Rule 144 under the Securities Act (or any successor rule)) of the Company and, accordingly, shall not be required to bear a
restrictive legend. Except as provided in subsection 7.4.2, for the avoidance of any doubt, unless and until all of the Warrants have been exercised, the Company shall continue to be obligated to comply with its
registration obligations under the first three sentences of this subsection 7.4.1.  
 7.4.2 Cashless Exercise at
Company’s Option. If the Common Stock is at the time of any exercise of a Warrant not listed on a national securities exchange such that it satisfies the definition of a “covered security” under Section 18(b)(1) of the
Securities Act (or any successor rule), the Company may, at its option, (i) require holders of Public Warrants or Note Financing Warrants who exercise Public Warrants or Note Financing Warrants to exercise such Public Warrants or Note Financing
Warrants on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act (or any successor rule) as described in subsection 7.4.1 and (ii) in the event the Company so elects, the Company shall not be
required to file or maintain in effect a registration statement for the registration, under the Securities Act, of the Common Stock issuable upon exercise of the Warrants, notwithstanding anything in this Agreement to the contrary. If the Company
does not elect at the time of exercise to require a holder of Public Warrants or Note Financing Warrants who exercises Public Warrants or Note Financing Warrants to exercise such Public Warrants or Note Financing Warrants on a “cashless
basis,” it agrees to use its best efforts to register or qualify for sale the Common Stock issuable upon exercise of the Public Warrant or Note Financing Warrant under the blue sky laws of the state of residence in those states in which the
Public Warrants or Note Financing Warrants were initially offered by the Company of the exercising Public Warrant or Note Financing Warrant holder to the extent an exemption is not available. 

8. Concerning the Warrant Agent and Other Matters.  

8.1 Payment of Taxes. The Company shall from time to time promptly pay all taxes and charges that may be imposed upon the Company or the
Warrant Agent in respect of the issuance or delivery of shares of Common Stock upon the exercise of the Warrants, but the Company shall not be obligated to pay any transfer taxes in respect of the Warrants or such shares of Common Stock. 

  
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 8.2 Resignation, Consolidation, or Merger of Warrant Agent.  

8.2.1 Appointment of Successor Warrant Agent. The Warrant Agent, or any successor to it hereafter appointed, may resign its duties and
be discharged from all further duties and liabilities hereunder after giving sixty (60) days’ notice in writing to the Company. If the office of the Warrant Agent becomes vacant by resignation or incapacity to act or otherwise, the Company
shall appoint in writing a successor Warrant Agent in place of the Warrant Agent. If the Company shall fail to make such appointment within a period of thirty (30) days after it has been notified in writing of such resignation or incapacity by
the Warrant Agent or by the holder of a Warrant (who shall, with such notice, submit his Warrant for inspection by the Company), then the holder of any Warrant may apply to the Supreme Court of the State of New York for the County of New York for
the appointment of a successor Warrant Agent at the Company’s cost. Any successor Warrant Agent, whether appointed by the Company or by such court, shall be a corporation organized and existing under the laws of the State of New York, in good
standing and having its principal office in the Borough of Manhattan, City and State of New York, and authorized under such laws to exercise corporate trust powers and subject to supervision or examination by federal or state authority. After
appointment, any successor Warrant Agent shall be vested with all the authority, powers, rights, immunities, duties, and obligations of its predecessor Warrant Agent with like effect as if originally named as Warrant Agent hereunder, without any
further act or deed; but if for any reason it becomes necessary or appropriate, the predecessor Warrant Agent shall execute and deliver, at the expense of the Company, an instrument transferring to such successor Warrant Agent all the authority,
powers, and rights of such predecessor Warrant Agent hereunder; and upon request of any successor Warrant Agent the Company shall make, execute, acknowledge, and deliver any and all instruments in writing for more fully and effectually vesting in
and confirming to such successor Warrant Agent all such authority, powers, rights, immunities, duties, and obligations. 
 8.2.2 Notice
of Successor Warrant Agent. In the event a successor Warrant Agent shall be appointed, the Company shall give notice thereof to the predecessor Warrant Agent and the Transfer Agent for the Common Stock not later than the effective date of any
such appointment. 
 8.2.3 Merger or Consolidation of Warrant Agent. Any corporation into which the Warrant Agent may be merged or
with which it may be consolidated or any corporation resulting from any merger or consolidation to which the Warrant Agent shall be a party shall be the successor Warrant Agent under this Agreement without any further act. 

8.3 Fees and Expenses of Warrant Agent.  

8.3.1 Remuneration. The Company agrees to pay the Warrant Agent reasonable remuneration for its services as such Warrant Agent
hereunder and shall, pursuant to its obligations under this Agreement, reimburse the Warrant Agent upon demand for all expenditures that the Warrant Agent may reasonably incur in the execution of its duties hereunder. 

8.3.2 Further Assurances. The Company agrees to perform, execute, acknowledge, and deliver or cause to be performed, executed,
acknowledged, and delivered all such further and other acts, instruments, and assurances as may reasonably be required by the Warrant Agent for the carrying out or performing of the provisions of this Agreement. 

8.4 Liability of Warrant Agent.  

8.4.1 Reliance on Company Statement. Whenever in the performance of its duties under this Agreement, the Warrant Agent shall deem it
necessary or desirable that any fact or matter be proved or established by the Company prior to taking or suffering any action hereunder, such fact or matter (unless other evidence in respect thereof be herein specifically prescribed) may be deemed
to be conclusively proved and established by a statement signed by the President, Chief Executive Officer or Chairman of the Board of the Company and delivered to the Warrant Agent. The Warrant Agent may rely upon such statement for any action taken
or suffered in good faith by it pursuant to the provisions of this Agreement. 

  
 14 













 8.4.2 Indemnity. The Warrant Agent shall be liable hereunder only for its own gross
negligence, willful misconduct or bad faith. The Company agrees to indemnify the Warrant Agent and save it harmless against any and all liabilities, including judgments, costs and reasonable counsel fees, for anything done or omitted by the Warrant
Agent in the execution of this Agreement, except as a result of the Warrant Agent’s gross negligence, willful misconduct or bad faith. 

8.4.3 Exclusions. The Warrant Agent shall have no responsibility with respect to the validity of this Agreement or with respect to the
validity or execution of any Warrant (except its countersignature thereof). The Warrant Agent shall not be responsible for any breach by the Company of any covenant or condition contained in this Agreement or in any Warrant. The Warrant Agent shall
not be responsible to make any adjustments required under the provisions of Section 4 hereof or responsible for the manner, method, or amount of any such adjustment or the ascertaining of the existence of facts that would
require any such adjustment; nor shall it by any act hereunder be deemed to make any representation or warranty as to the authorization or reservation of any shares of Common Stock to be issued pursuant to this Agreement or any Warrant or as to
whether any shares of Common Stock shall, when issued, be valid and fully paid and non-assessable. 

8.5 Acceptance of Agency. The Warrant Agent hereby accepts the agency established by this Agreement and agrees to perform the same upon
the terms and conditions herein set forth and among other things, shall account promptly to the Company with respect to Warrants exercised and concurrently account for, and pay to the Company, all monies received by the Warrant Agent for the
purchase of shares of Common Stock through the exercise of the Warrants. 
 8.6 Waiver. The Warrant Agent has no right of set-off or any other right, title, interest or claim of any kind (“Claim”) in, or to any distribution of, the Trust Account (as defined in that certain Investment Management Trust Agreement,
dated as of the date hereof, by and between the Company and the Warrant Agent as trustee thereunder) and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever.
The Warrant Agent hereby waives any and all Claims against the Trust Account and any and all rights to seek access to the Trust Account. 

9. Miscellaneous Provisions.  

9.1 Successors. All the covenants and provisions of this Agreement by or for the benefit of the Company or the Warrant Agent shall bind
and inure to the benefit of their respective successors and assigns. 
 9.2 Notices. Any notice, statement or demand authorized by
this Agreement to be given or made by the Warrant Agent or by the holder of any Warrant to or on the Company shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service
within five (5) days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Company with the Warrant Agent), as follows: 

GigCapital3, Inc. 
 1731
Embarcadero Rd., Suite 200 
 Palo Alto, CA 94303 

Attn: Dr. Avi S. Katz 
 Any notice,
statement or demand authorized by this Agreement to be given or made by the holder of any Warrant or by the Company to or on the Warrant Agent shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified
mail or private courier service within five (5) days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Warrant Agent with the Company), as follows: 

  
 15 













 Continental Stock Transfer & Trust Company 

1 State Street Plaza, 30th Floor 

New York, NY 10004 
 Attention:
Compliance Department 
 9.3 Applicable Law. The validity, interpretation, and performance of this Agreement and of the Warrants shall
be governed in all respects by the laws of the State of New York, without giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. The Company hereby agrees that any action,
proceeding or claim against it arising out of or relating in any way to this Agreement shall be brought and enforced in the courts of the State of New York or the United States District Court for the Southern District of New York, and irrevocably
submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum. 

9.4 Persons Having Rights under this Agreement. Nothing in this Agreement shall be construed to confer upon, or give to, any person or
corporation other than the parties hereto and the Registered Holders of the Warrants any right, remedy, or claim under or by reason of this Agreement or of any covenant, condition, stipulation, promise, or agreement hereof. All covenants,
conditions, stipulations, promises, and agreements contained in this Agreement shall be for the sole and exclusive benefit of the parties hereto and their successors and assigns and of the Registered Holders of the Warrants. 

9.5 Examination of the Warrant Agreement. A copy of this Agreement shall be available at all reasonable times at the office of the
Warrant Agent in the Borough of Manhattan, City and State of New York, for inspection by the Registered Holder of any Warrant. The Warrant Agent may require any such holder to submit his Warrant for inspection by it. 

9.6 Counterparts. This Agreement may be executed in any number of original or facsimile counterparts and each of such counterparts shall
for all purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. 
 9.7
Effect of Headings. The section headings herein are for convenience only and are not part of this Agreement and shall not affect the interpretation thereof. 

9.8 Amendments. This Agreement may be amended by the parties hereto without the consent of any Registered Holder for the purpose of
curing any ambiguity, or curing, correcting or supplementing any defective provision contained herein or adding or changing any other provisions with respect to matters or questions arising under this Agreement as the parties may deem necessary or
desirable and that the parties deem shall not adversely affect the interest of the Registered Holders. All other modifications or amendments, including any amendment to increase the Exercise Price or shorten the Exercise Period and any amendment to
the terms of only the Founder Warrants or the Working Capital Warrants and/or the Note Financing Warrants, shall require the vote or written consent of the Registered Holders of 50% of the then outstanding Public Warrants. Any amendment solely to
the Founder Warrants or the Working Capital Warrants shall also require the vote or written consent of a majority of the holders of the then outstanding Founder Warrants or the Working Capital Warrants, as applicable. Any amendment solely to the
Note Financing Warrants shall also require the vote or written consent of a majority of the holders of the then outstanding Note Financing Warrants. Notwithstanding the foregoing, the Company may lower the Exercise Price or extend the duration of
the Exercise Period pursuant to Sections 3.1 and 3.2, respectively, without the consent of the Registered Holders. 
 9.9
Severability. This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof.
Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable provision as may be
possible and be valid and enforceable. 

  
 16 













 9.10 Complete Agreement. This Agreement constitutes the entire agreement and
supersedes all prior agreements and understandings, both written and oral, between the parties with respect to the subject matter hereof (including, for the avoidance of doubt, the Original Warrant Agreement). 

 

  
 17 













 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of
the date first above written. 
  

			
	GIGCAPITAL3, INC.
		
	By:	 	      

		 	Name: Avi Katz
		 	Title: Chief Executive Officer
	
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent
		
	By:	 	      

		 	Name:
		 	Title:


 Signature Page to Amended and Restated Warrant Agreement 












 EXHIBIT A 

Form of Warrant Certificate] 

[FACE] 
 Number 

Warrants 
 THIS WARRANT
SHALL BE VOID IF NOT EXERCISED PRIOR TO 
 THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR IN THE 

WARRANT AGREEMENT DESCRIBED BELOW 

GIGCAPITAL3, INC. 

Incorporated Under the Laws of the State of Delaware 

CUSIP 37519D2062 
 Warrant
Certificate 
 This Warrant Certificate certifies that , or its registered assigns, is the registered holder of ____ 

warrant(s) evidenced hereby (the “Warrants” and each, a “Warrant”) to purchase shares of Common Stock,
$0.0001 par value (“Common Stock”), of GigCapital3, Inc., a Delaware corporation (the “Company”). Each whole Warrant entitles the holder, upon exercise during the period set
forth in the Warrant Agreement referred to below, to receive from the Company that number of fully paid and non-assessable shares of Common Stock as set forth below, at the exercise price (the
“Exercise Price”) as determined pursuant to the Warrant Agreement, payable in lawful money (or through “cashless exercise” as provided for in the Warrant Agreement) of the United States
of America upon surrender of this Warrant Certificate and payment of the Exercise Price at the office or agency of the Warrant Agent referred to below, subject to the conditions set forth herein and in the Warrant Agreement. Defined terms used in
this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 
 Each whole Warrant is
initially exercisable for one fully paid and non-assessable share of Common Stock. No fractional shares will be issued upon exercise of any Warrant. If, upon the exercise of Warrants, a holder would be
entitled to receive a fractional interest in a share of Common Stock, the Company will, upon exercise, round down to the nearest whole number the number of shares of Common Stock to be issued to the Warrant holder. The number of shares of Common
Stock issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of certain events set forth in the Warrant Agreement. 

The initial Exercise Price per share of Common Stock for any Warrant is equal to $11.50 per share. The Exercise Price is subject to adjustment
upon the occurrence of certain events set forth in the Warrant Agreement. 
 Subject to the conditions set forth in the Warrant Agreement,
the Warrants may be exercised only during the Exercise Period and to the extent not exercised by the end of such Exercise Period, such Warrants shall become void. 

Reference is hereby made to the further provisions of this Warrant Certificate set forth on the reverse hereof and such further provisions
shall for all purposes have the same effect as though fully set forth at this place. 












 This Warrant Certificate shall not be valid unless countersigned by the Warrant Agent, as
such term is used in the Warrant Agreement. 
 This Warrant Certificate shall be governed by and construed in accordance with the internal
laws of the State of New York, without regard to conflicts of laws principles thereof. 
  

			
	GIGCAPITAL3, INC.
		
	By:	 	                
		 	Name:
		 	Title:
	
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY as Warrant Agent
		
	By:	 	                
		 	Name:
		 	Title:


 [Reverse] 

The Warrants evidenced by this Warrant Certificate are part of a duly authorized issue of Warrants entitling the holder on exercise to receive
shares of Common Stock and are issued or to be issued pursuant to an Amended and Restated Warrant Agreement dated as of ___, 2020 (the “Warrant Agreement”), duly executed and delivered by the Company to
Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (the “Warrant Agent”), which Warrant Agreement is hereby incorporated by reference in and made a part of this
instrument and is hereby referred to for a description of the rights, limitation of rights, obligations, duties and immunities thereunder of the Warrant Agent, the Company and the holders (the words “holders” or
“holder” meaning the Registered Holders or Registered Holder) of the Warrants. A copy of the Warrant Agreement may be obtained by the holder hereof upon written request to the Company. Defined terms used in this
Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 
 Warrants may be exercised at
any time during the Exercise Period set forth in the Warrant Agreement. The holder of Warrants evidenced by this Warrant Certificate may exercise them by surrendering this Warrant Certificate, with the form of election to purchase set forth hereon
properly completed and executed, together with payment of the Exercise Price as specified in the Warrant Agreement (or through “cashless exercise” as provided for in the Warrant Agreement) at the principal corporate trust office of the
Warrant Agent. In the event that upon any exercise of Warrants evidenced hereby the number of Warrants exercised shall be less than the total number of Warrants evidenced hereby, there shall be issued to the holder hereof or his, her or its
assignee, a new Warrant Certificate evidencing the number of Warrants not exercised. 
 Notwithstanding anything else in this Warrant
Certificate or the Warrant Agreement, no Warrant may be exercised unless at the time of exercise (i) a registration statement covering the shares of Common Stock to be issued upon exercise is effective under the Securities Act and (ii) a
prospectus thereunder relating to the shares of Common Stock is current, except through “cashless exercise” as provided for in the Warrant Agreement. 












 The Warrant Agreement provides that upon the occurrence of certain events the number of
shares of Common Stock issuable upon exercise of the Warrants set forth on the face hereof may, subject to certain conditions, be adjusted. If, upon exercise of a Warrant, the holder thereof would be entitled to receive a fractional interest in a
share of Common Stock, the Company shall, upon exercise, round down to the nearest whole number of shares of Common Stock to be issued to the holder of the Warrant. 

Warrant Certificates, when surrendered at the principal corporate trust office of the Warrant Agent by the Registered Holder thereof in person
or by legal representative or attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations provided in the Warrant Agreement, but without payment of any service charge, for another Warrant Certificate or
Warrant Certificates of like tenor evidencing in the aggregate a like number of Warrants. 
 Upon due presentation for registration of
transfer of this Warrant Certificate at the office of the Warrant Agent a new Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s) in exchange for
this Warrant Certificate, subject to the limitations provided in the Warrant Agreement, without charge except for any tax or other governmental charge imposed in connection therewith. 

The Company and the Warrant Agent may deem and treat the Registered Holder(s) hereof as the absolute owner(s) of this Warrant Certificate
(notwithstanding any notation of ownership or other writing hereon made by anyone), for the purpose of any exercise hereof, of any distribution to the holder(s) hereof, and for all other purposes, and neither the Company nor the Warrant Agent shall
be affected by any notice to the contrary. Neither the Warrants nor this Warrant Certificate entitles any holder hereof to any rights of a stockholder of the Company. 

Election to Purchase 
 (To Be
Executed Upon Exercise of Warrant) 
 The undersigned hereby irrevocably elects to exercise the right, represented by this Warrant
Certificate, to receive shares of Common Stock and herewith tenders payment for such shares of Common Stock to the order of GigCapital3, Inc. (the “Company”) in the amount of $ in accordance with the terms
hereof. The undersigned requests that a certificate for such shares of Common Stock be registered in the name of , whose address is and that such shares of Common Stock be delivered to whose address is . If said number of shares of Common Stock is
less than all of the shares of Common Stock purchasable hereunder, the undersigned requests that a new Warrant Certificate representing the remaining balance of such shares of Common Stock be registered in the name of , whose address is and that
such Warrant Certificate be delivered to , whose address is . 
 In the event that the Warrant has been called for redemption by the Company
pursuant to Section 6 of the Warrant Agreement and the Company has required cashless exercise pursuant to Section 6.3 of the Warrant Agreement, the number of shares of Common Stock that this
Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(b) and Section 6.3 of the Warrant Agreement. 

In the event that the Warrant is a Founder Warrant, Working Capital Warrant or Note Financing Warrant that is to be exercised on a
“cashless” basis pursuant to subsection 3.3.1(c) of the Warrant Agreement, the number of shares of Common Stock that this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(c) of the Warrant
Agreement. 












 In the event that the Warrant is to be exercised on a “cashless” basis pursuant to
Section 7.4 of the Warrant Agreement, the number of shares of Common Stock that this Warrant is exercisable for shall be determined in accordance with Section 7.4 of the Warrant Agreement. 

In the event that the Warrant may be exercised, to the extent allowed by the Warrant Agreement, through cashless exercise (i) the number
of shares of Common Stock that this Warrant is exercisable for would be determined in accordance with the relevant section of the Warrant Agreement which allows for such cashless exercise and (ii) the holder hereof shall complete the following:
The undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, through the cashless exercise provisions of the Warrant Agreement, to receive shares of Common Stock. If said number of shares is less than all
of the shares of Common Stock purchasable hereunder (after giving effect to the cashless exercise), the undersigned requests that a new Warrant Certificate representing the remaining balance of such shares of Common Stock be registered in the name

  

					
	of	  	, whose address is	  	and that such Warrant Certificate be delivered
	to	  	, whose address is	  	.

 [Signature Page follows] 

Date:             , 20 

 

	
	(Signature)
	
	(Address)
	
	(Tax Identification Number)


 Signature Guaranteed: 

THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH
MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 (OR ANY SUCCESSOR RULE)). 












 EXHIBIT B 

LEGEND 
 THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS, AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF EXCEPT
PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION IS AVAILABLE. THE SECURITIES
REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP PURSUANT TO A UNIT PURCHASE AGREEMENT BETWEEN GIGCAPITAL3, INC. AND GIGACQUISITIONS3, LLC AND MAY ONLY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF THE LOCKUP
PURSUANT TO THE TERMS SET FORTH IN THE UNIT PURCHASE AGREEMENT. 












 EXHIBIT C 

LEGEND 
 THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF
EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE. 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP PURSUANT TO A UNIT PURCHASE AGREEMENT BETWEEN GIGCAPITAL3, INC. AND THE SUBSCRIBERS NAMED
THEREIN AND MAY ONLY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF THE LOCKUP PURSUANT TO THE TERMS SET FORTH IN THE UNIT PURCHASE AGREEMENT. 












 EXHIBIT D 

LEGEND 
 THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF
EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.