Document:

EX-10.2

 Exhibit 10.2 

BACKSTOP SUBSCRIPTION AGREEMENT 

This Backstop Subscription Agreement (as amended, restated, modified or supplemented from time to time, this “Agreement”) is
dated as of February 10, 2021 by and among Nebula Caravel Acquisition Corp, a Delaware corporation (“Parent”) and the persons identified on the signature page hereto under the heading “Subscriber” (the
“Subscriber”). This Agreement relates to that certain Business Combination Agreement and Plan of Merger dated as of February 10, 2021, by and among Parent, A Place for Rover, Inc. d/b/a Rover, a Delaware corporation (the
“Company”) and Fetch Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Parent (“Merger Sub”) (as amended, restated, modified or supplemented from time to time, the “Merger
Agreement”), pursuant to which, among other transactions, Merger Sub is to merge with and into the Company, with the Company continuing on as the surviving entity on the terms and conditions set forth therein (the
“Merger”). Capitalized terms used but not defined herein shall have the respective meanings ascribed to such terms in the Merger Agreement. 

In consideration of the foregoing and the mutual agreements contained herein, and intending to be legally bound hereby, the parties hereto
hereby agree as follows: 
 1. Backstop Subscription; Additional Subscription. 

(a) Subject to the terms and conditions set forth in this Agreement, in the event of any Parent Stockholder Redemption, (i) the Subscriber
hereby irrevocably subscribes for and agrees to purchase from Parent, at a purchase price equal to $10.00 per share, a number of shares of Parent A Common Stock equal to the quotient of (A) the lesser of (x) $50,000,000 (or such greater amount
as may be determined in the sole discretion of the Subscriber), and (y) the Parent Stockholder Redemption Amount (calculated on the basis that the amount paid with respect to each share of Parent Common Stock in connection with all Parent
Stockholder Redemptions is $10.00), divided by (B) $10.00 and (ii) Parent agrees to sell such number of shares of Parent A Common Stock as calculated pursuant to the immediately foregoing clause (i) to the Subscriber at such per
share price as set forth in the immediately preceding clause (i) (the shares of Parent A Common Stock to be so sold, the “Backstop Shares”). Any such purchase (the “Backstop Subscription”) shall be consummated
immediately prior to the Closing. 
 (b) Subject to the terms and conditions set forth in this Agreement and the last sentence of
Section 6.19 of the Merger Agreement (including obtaining the prior written consent of the Company (which consent shall not be unreasonably withheld, conditioned or delayed)), (i) the Subscriber shall, by providing written notice to Parent
prior to the Effective Time, be entitled to subscribe for and purchase from Parent, up to $50,000,000 in aggregate purchase price of shares of Parent A Common Stock for a per share purchase price of $10.00 per share, and, (ii) following receipt
of such written notice, Parent agrees to sell such shares of Parent Class A Common Stock to the Subscriber at such per share price (the shares of Parent A Common Stock to be so sold, collectively with the Backstop Shares, the “Subject
Shares”). Any such purchase shall be consummated immediately prior to the Closing. 
 (c) Notwithstanding the foregoing, the $10.00
per share price referenced in Sections 1(a), 1(b) and 2(a) shall be equitably adjusted for stock splits, reverse stock splits, stock dividends, reorganizations, recapitalizations, reclassifications, combination, exchange of
shares or other like change or transaction with respect to Parent Common Stock occurring prior to the Effective Time. 

 2. Delivery of Subscription Amount; Acceptance of Subscriptions; Delivery. The
Subscriber understands and agrees that this subscription is made subject to the following terms and conditions: 
 (a) Contemporaneously with
the execution and delivery of this Agreement, the Subscriber shall execute and deliver the Investor Questionnaire (as defined below) and, in respect of any subscription set forth in Section 1 hereof, the Subscriber shall,
no later than two (2) Business Days before the anticipated Closing Date (as specified in a written notice from Parent to the Subscriber) (the “Funding Date”), cause a wire transfer to be made for payment for the Subject Shares
in immediately available funds to an account specified in writing by Parent (such funds to be held by Parent in escrow until the Closing) in the amount equal to (x) $10.00 multiplied by (y) the number of Subject Shares to be purchased by
the Subscriber (such amount in the aggregate, the “Subscription Amount”). If the Closing does not occur within two (2) Business Days after the anticipated Closing Date, unless otherwise agreed to in writing by Parent and the
Subscriber, Parent shall promptly (but in no event later than three (3) Business Days after the anticipated Closing Date) return the funds so delivered by the Subscriber to Parent by wire transfer in immediately available funds to the account
specified by the Subscriber. Notwithstanding such return or cancellation (x) a failure to close on the anticipated Closing Date shall not, by itself, be deemed to be a failure of any of the conditions to Closing set forth in this
Section 2 to be satisfied or waived on or prior to the Closing Date, and (y) unless and until this Agreement is terminated in accordance with Section 6 herein, the Subscriber shall remain
obligated (A) to redeliver funds to Parent in escrow following Parent’s delivery to the Subscriber of a new closing notice and (B) to consummate the Closing upon satisfaction of the conditions set forth in this
Section 2. 
 (b) The consummation of the subscription of the Subscriber for the Subject Shares (the
“Subscription”) shall be subject to the following conditions: 
 (i) 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
otherwise restraining or prohibiting consummation of the transactions contemplated hereby, and no governmental authority shall have instituted or threatened in writing a proceeding seeking to impose any such restraint or prohibition; 

(ii) all conditions precedent to the closing of the Merger, including the Parent Stockholder Approval, shall have been satisfied or waived
(other than those conditions which, by their nature, are to be satisfied at the closing of the Merger) and there occurs the subsequent substantially simultaneous Closing. 

(c) Each of Parent and the Subscriber shall use its reasonable best efforts to take, or to cause to be taken, all actions reasonably required,
necessary, proper or advisable to cause all conditions to consummation of the subscription for the Subject Shares to be satisfied. 
 3.
Expenses. Expect as otherwise provided in the Merger Agreement, each party hereto shall pay all of its own expenses in connection with this Agreement and the transactions contemplated hereby. 

4. Representations, Warranties, Understandings, Risk Acknowledgments, and Covenants of the Subscriber. The Subscriber hereby represents,
warrants and covenants to Parent as follows: 
 (a) The Subscriber is purchasing the Subject Shares for its own account, not as a nominee or
agent, for investment purposes and not with a view towards distribution or resale within the meaning of the Securities Act (absent the registration of the Subject Shares for resale under the Securities Act or a valid exemption from registration).
The Subscriber will not sell, assign or transfer such shares or securities at any time in violation of the Securities Act or applicable state securities laws. The Subscriber acknowledges that the Subject Shares cannot be sold unless subsequently
registered under the Securities Act and applicable state securities laws or an exemption from such registration is available. 

  
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 (b) The Subscriber understands that (A) the Subject Shares (1) have not been
registered under the Securities Act or any state securities laws, (2) have been offered and will be sold in reliance upon an exemption from the registration and prospectus delivery requirements of the Securities Act, (3) will be issued in
reliance upon exemptions from the registration and prospectus delivery requirements of state securities laws which relate to private offerings and (4) must be held at least one year from the date that the Parent files a Current Report on Form 8-K following the Closing Date that includes the “Form 10” information required under applicable SEC rules and regulations, and (B) the Subscriber must therefore bear the economic risk of its
investment hereunder indefinitely unless a subsequent disposition thereof is registered under the Securities Act and applicable state securities laws or is exempt therefrom. The Subscriber further understands that such exemptions depend upon, among
other things, the bona fide nature of the investment intent of the Subscriber expressed herein. 
 (c) The Subscriber has knowledge, skill
and experience in financial, business and investment matters relating to an investment of this type and is capable of evaluating the merits and risks of such investment and protecting the Subscriber’s interest in connection with the acquisition
of the Subject Shares. The Subscriber understands that the acquisition of the Subject Shares is a speculative investment and involves substantial risks and that the Subscriber could lose its entire investment. Further, the undersigned has
(i) carefully read and considered the risks identified in the Disclosure Documents (as defined below) and (ii) carefully considered the risks related to the Merger, the Parent and the Company and has taken full cognizance of and
understands all of the risks related to Parent, the Company, the Merger, the Subject Shares and the transactions contemplated hereby, including, without limitation, the purchase of the Subject Shares. the Subscriber has had the opportunity to
retain, at its own expense, and relied upon, appropriate professional advice regarding the investment, tax and legal merits and consequences of the foregoing, including, without limitation, purchasing and owning the Subject Shares. The Subscriber
has the ability to bear the economic risks of the Subscriber’s investment in Parent, including a complete loss of the investment. 
 (d)
The Subscriber has been furnished by Parent all information (or provided access to all information it reasonably requested) regarding the business and financial condition of Parent and the Company, Parent and the Company’s expected plans for
future business activities, and the merits and risks of an investment in the Subject Shares which the Subscriber has reasonably requested or otherwise needs to evaluate the investment in the Subject Shares. 

(e) The Subscriber is in receipt of and has carefully read and understands the following items (collectively, the “Disclosure
Documents”): 
 (i) the final prospectus Parent in connection with its initial public offering, dated December 9, 2020, as
filed with the SEC (the “Final Prospectus”); 
 (ii) each filing made by Parent with the SEC following the filing of the
Final Prospectus; 
 (iii) the Merger Agreement (including any amendment thereto), a copy of which has been filed by Parent with the SEC;
and 
 (iv) the amendments to Parent’s certificate of incorporation proposed to be voted on pursuant thereto, a copy of which is set
forth as Exhibit A to the Merger Agreement. 
 The Subscriber acknowledges that neither Parent nor any of its Affiliates has made or makes
any representation or warranty to the Subscriber in respect of Parent or the Company, the Merger, Parent upon, or relating to, the Merger, other than in the case of Parent, the representations and warranties contained in this Agreement. 

  
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 (f) In making its investment decision to purchase the Subject Shares, the Subscriber is
relying solely on investigations made by the Subscriber and the Subscriber’s representatives. The offer to sell or assign the Subject Shares was communicated to the Subscriber in such a manner that the Subscriber was able to ask questions of
and receive answers from the management of Parent concerning the terms and conditions of the proposed transaction and that at no time was the Subscriber presented with or solicited by or through any form of general or public advertising or
solicitation. 
 (g) The Subscriber acknowledges that it has been advised that: 

(i) The Subject Shares have not been approved or disapproved by the SEC or any state securities commission nor has the SEC or any state
securities commission passed upon the accuracy or adequacy of any representations by Parent. 
 (ii) In making an investment decision, the
Subscriber must rely on its own examination of Parent, the Company, the Merger, the Subject Shares and the offering of such Subject Shares, including the merits and risks involved. The Subject Shares have not been recommended by any federal or state
securities commission or regulatory authority. Furthermore, the foregoing authorities have not confirmed the accuracy or determined the adequacy of any representation. 

(iii) The Subject Shares will be “restricted securities” within the meaning of Rule 144 under the Securities Act, are subject to
restrictions on transferability and resale and may not be transferred or resold except as permitted under the Securities Act and applicable state securities laws, pursuant to registration or exemption therefrom. The Subscriber is aware that the
provisions of Rule 144 are not currently available and, in the future, may not become available for resale of any of the Subject Shares and that Parent is an issuer subject to Rule 144(i) under the Securities Act. The Subscriber is aware that it may
be required to bear the financial risks of this investment for an indefinite period of time. 
 (h) The Subscriber further represents and
warrants that it is an institutional “accredited investor” within the meaning of Rule 501 of Regulation D under the Securities Act, and such Subscriber has executed the Investor Questionnaire attached hereto as Exhibit A (the
“Investor Questionnaire”) and shall provide to Parent an updated Investor Questionnaire for any change in circumstances at any time on or prior to the Closing. 

(i) As of the date of this Agreement, the Subscriber and its Affiliates do not have, and during the 30 day period prior to the date of this
Agreement, the Subscriber and its Affiliates have not, in a seller, transferor or other similar capacity, entered into, any “put equivalent position” as such term is defined in Rule 16a-1 of under
the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or short sale positions with respect to the securities of Parent. 

(j) (i) The Subscriber has the full legal right and power and all authority and approval required (a) to execute and deliver, or
authorize execution and delivery of, this Agreement and all other instruments executed and delivered by or on behalf of the Subscriber in connection with the purchase of the Subject Shares, (b) to delegate authority pursuant to power of
attorney and (c) to purchase and hold such Subject Shares; (ii) the signature of the party signing on behalf of the Subscriber is binding upon the Subscriber. 

  
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 (k) This Agreement has been duly authorized, executed and delivered by the Subscriber and
constitutes a legal, valid and binding obligation of the Subscriber enforceable against the Subscriber in accordance with its terms. 
 (l)
The Subscriber understands and confirms that Parent will rely on the representations and covenants contained herein in effecting the transactions contemplated by this Agreement and the other Transaction Documents (as defined herein). All
representations and warranties provided to Parent furnished by or on behalf of the Subscriber, taken as a whole, are true and correct and do not contain any untrue statement of material fact or omit to state any material fact necessary in order to
make the statements made therein, in the light of the circumstances under which they were made, not misleading. 
 (m) Neither the Subscriber
nor, to the extent it has them, any of its shareholders, members, managers, general or limited partners, directors, Affiliates or executive officers (collectively with such Subscriber, the “Subscriber Covered Persons”), are subject
to any of the “Bad Actor” disqualifications described in Rule 506(d) under the Securities Act (a “Disqualification Event”), except for a Disqualification Event covered by Rule 506(d)(2) or (d)(3). 

(n) The Subscriber has exercised reasonable care to determine whether any Subscriber Covered Person is subject to a Disqualification Event.

 (o) The purchase of Subject Shares by the Subscriber will not subject Parent to any Disqualification Event. 

(p) Waiver Against Trust. The Subscriber acknowledges that Parent is a blank check company with the powers and privileges to effect a
Business Combination. The Subscriber further acknowledges that, as described in the Final Prospectus available at www.sec.gov, substantially all of Parent assets consist of the cash proceeds of Parent’s initial public offering and private
placements of its securities and substantially all of those proceeds have been deposited in the Trust Account for the benefit of Parent, certain of its public stockholders and the underwriters of Parent’s initial public offering. The Subscriber
acknowledges that it has been advised by Parent that funds in the Trust Account may be disbursed only in accordance with the Trust Agreement and Parent’s Governing Documents. For and in consideration of Parent entering into this Agreement, the
receipt and sufficiency of which are hereby acknowledged, the Subscriber hereby irrevocably waives any right, title, interest or claim of any kind they have or may have in the future in or to any monies in the Trust Account and agree not to seek
recourse against the Trust Account or any funds distributed therefrom as a result of, or arising out of, this Agreement and any negotiations, Contracts or agreements with Parent; provided, that (x) nothing herein shall serve to limit or
prohibit the Subscriber’s right to pursue a claim against Parent for legal relief against monies or other assets held outside the Trust Account, for specific performance or other equitable relief in connection with the consummation of the
transactions (including a claim for Parent to specifically perform its obligations under this Agreement) so long as such claim would not affect Parent’s ability to fulfill its obligation to effectuate the Parent Stockholder Redemptions, or for
fraud and (y) nothing herein shall serve to limit or prohibit any claims that the Subscriber may have in the future against Parent’s assets or funds that are not held in the Trust Account (including any funds that have been released from
the Trust Account and any assets that have been purchased or acquired with any such funds). 
 5. Representations and Warranties of
Parent. Parent represents and warrants to the Subscriber as follows: 

  
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 (a) Parent has been duly incorporated, is validly existing and is in good standing under the
laws of the State of Delaware, with corporate power and authority to own, lease and operate its properties and conduct its business as presently conducted 

(b) The Subject Shares have been duly authorized and, when issued and delivered to the Subscriber against full payment therefor in accordance
with the terms of this Agreement, the Subject Shares will be validly issued, fully paid and non-assessable and will not have been issued in violation of or subject to any preemptive or similar rights created
under Parent’s certificate of incorporation or under the laws of the State of Delaware. 
 (c) Subject to obtaining all required
approvals necessary in connection with the performance of the Merger Agreement (including the Parent Stockholder Approval) and any required approvals pursuant to the applicable rules of the Nasdaq Stock Market (together, the “Required
Approvals”), Parent has all requisite corporate power and authority to enter into and perform this Agreement and the Merger Agreement (collectively, the “Transaction Documents”), and to perform its obligations under this
Agreement and the other Transaction Document. Subject to obtaining the Required Approvals, the execution, delivery and performance of this Agreement and the other Transaction Documents by Parent and the consummation by it of the transactions
contemplated hereby and thereby have been duly and validly authorized by all requisite corporate action, and no other proceedings on Parent’s part are necessary to authorize the execution, delivery or performance of this Agreement and the other
Transaction Documents. This Agreement and each of the other Transaction Documents have been duly executed and delivered by Parent, and, assuming that this Agreement constitutes a valid and binding obligation of the Subscriber, this Agreement and
each of the other Transaction Documents will constitute upon execution and delivery by Parent, a legal, valid and binding obligation of Parent enforceable against Parent in accordance with its terms, except as such enforceability may be limited by:
(i) applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws in effect that limit creditors’ rights generally; (ii) equitable limitations on the availability of specific remedies; (iii) principles of
equity (regardless of whether such enforcement is considered in a proceeding in law or in equity); and (iv) to the extent rights to indemnification and contribution may be limited by federal securities laws or the public policy underlying such
laws. 
 (d) Subject to obtaining the Required Approvals, the execution, delivery and performance of this Agreement and the other Transaction
Documents by Parent and the consummation by Parent of the transactions contemplated hereby and thereby will not (i) conflict with or result in a violation of any provision of Parent’s certificate of incorporation and bylaws, as currently
in effect, (ii) violate or conflict with, or result in a breach of any provision of, or constitute a default (or an event which with notice or lapse of time or both could become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, any material agreement, to which Parent is a party, or (iii) result in a violation of any law applicable to Parent or by which any property or asset of Parent is bound or affected (except for such
conflicts, defaults, terminations, amendments, accelerations, cancellations and violations in clauses (ii) or (iii) of this Section 5(d) as have not had or would not reasonably be expect to have, individually or in the
aggregate, a material adverse effect on the business, properties, condition or prospects (financial or otherwise) or results of operations of Parent (“Material Adverse Effect”)). 

(e) Except as required by the Exchange Act, the Securities Act, the rules of Nasdaq, and the terms of the Merger Agreement, Parent is not
required to submit any notice, report or other filing with any Governmental Authority in connection with the execution, delivery or performance by it of the Transaction Documents or the consummation of the transactions contemplated by the
Transaction Documents and no consent, approval or authorization of any Governmental Authority or any other Person is required to be obtained by Parent in connection with its execution, delivery and performance of this Agreement and each of the other
Transaction Documents or the consummation of the transactions contemplated hereby and thereby (other than such consents, approvals or authorizations, the failure of which to obtain, have not had and would not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect). 

  
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 (f) As of the date hereof, the authorized capital stock of Parent consists of (i)
200,000,000 shares of Parent A Common Stock, par value $0.0001 per share; (ii) 20,000,000 shares of Parent B Common Stock, par value $0.0001 per share; and (iii) 1,000,000 shares of preferred stock, par value $0.0001 per share (“Parent
Preferred Shares”). As of the date hereof: (i) no Parent Preferred Shares are issued and outstanding; (ii) 27,500,000 shares of Parent A Common Stock are issued and outstanding; (iii) 6,875,000 shares of Parent B Common Stock are
issued and outstanding; and (iv) 10,666,667 Parent Warrants to purchase 10,666,667 shares of Parent A Common Stock are outstanding. 
 (g)
Parent understands and confirms that the Subscriber will rely on the representations and covenants contained herein in effecting the transactions contemplated by this Agreement. 

6. Termination. This Agreement shall terminate and be void and of no further force and effect, and all rights and obligations of the
parties hereunder shall terminate without any further liability on the part of any party in respect thereof, upon the earliest to occur of (i) the date on which the Merger Agreement is terminated in accordance with its terms (the
“Termination Date”), (ii) upon the mutual written agreement of each of the parties hereto and the Company to terminate this Agreement; (iii) if any of the conditions set forth in Section 2 of this
Agreement are not satisfied or waived on or prior to the Closing and, as a result thereof, the transactions contemplated by this Agreement are not consummated at the Closing or (d) December 31, 2021; provided that nothing herein
will relieve any party from liability for any willful breach hereof 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. 

7. Survival. All the agreements, representations and warranties made by each party in this Agreement shall survive the Closing. 

8. Notices. All notices and other communications under this Agreement shall be in writing and shall be deemed given (a) when
delivered personally by hand (with written confirmation of receipt by other than automatic means, whether electronic or otherwise), (b) when sent by email (with no automated reply, such as an out-of-office notification, no mail undeliverable notification or other rejection notice) or (c) one (1) Business Day following the day sent by an internationally recognized overnight courier (with
written confirmation of receipt), in each case, at the following addresses or e-mail addresses (or to such other address or e-mail address as a party may have specified
by notice given to the other party pursuant to this provision): 
 (a) if to Parent: 

Nebula Caravel Acquisition Corp. 

Four Embarcadero Center, Suite 2100 

San Francisco, California 94111 

Attention: [                ] 

Email:      [                ]

  
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 with a copy to (which will not constitute notice): 

Simpson Thacher & Bartlett LLP 

2475 Hanover Street 
 Palo Alto,
CA 94304 
 Attention: [                ] 

                 [      
          ] 
 Email:
     [                ] 

                 [      
          ] 
 (b) if to the Company: 

A Place for Rover, Inc. 
 711
Capital Way S., Suite 204 
 Olympia, WA 98501 

Attention: [                ] 

Email:       [                ]

 with a copy (which will not constitute actual or constructive notice) to: 

Wilson Sonsini Goodrich & Rosati 

One Market Plaza 
 Spear Tower,
Suite 3300 
 San Francisco, CA 94105-1126 

Attention: [                ] 

Email:      [                ] 

and 
 Wilson Sonsini
Goodrich & Rosati 
 701 Fifth Avenue, Suite 5100 

Seattle, WA 98104 
 Attention:
[                ] 

Email:       [               
 ] 
 (c) if to the Subscriber, to the address of the Subscriber set forth on the signature pages hereof, 

or at such other address as any party shall have specified by notice in writing to the other parties. 

9. Notification of Changes. Each party agrees and covenants to notify the other party immediately upon the occurrence of any event prior
to the Closing that would cause any representation, warranty, covenant or other statement contained in this Agreement to be false or incorrect or of any change in any statement made herein occurring prior to the Closing. 

10. Assignability; Amendments; Waiver. Parent may not assign either this Agreement or any of its rights, interests or obligations
hereunder without the prior written consent of the Subscriber. The Subscriber may assign this Agreement and any of its rights, interests or obligations hereunder (including the Subscriber’s rights to purchase the Subject Shares) to any
(i) direct or indirect partners, members or equityholders of the Subscriber, (ii) any Affiliates of the Subscriber or any related investment funds or vehicles controlled or managed by such persons or entities or their respective Affiliates
(including the 

  
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Sponsor), (iii) any equityholders of Parent or (iv) any PIPE Investors or other persons serving as “PIPE investors” in companies invested in by any Subscriber or any of the persons
described in the foregoing clause (ii) (in each case of clauses (i)-(iv) immediately foregoing, solely to the extent the funds to satisfy the Subscriber’s obligations under this Agreement are paid to Parent on or before the Closing);
provided, however, that any such assignment shall not relieve the Subscriber of its obligations under this Agreement; provided, further, that such assignment does not in any material respect increase conditionality,
reduce or impair the rights of Parent under this Agreement or impede or delay the consummation of the Merger. This Agreement may not be amended, modified or terminated except by an instrument in writing signed by Parent, the Subscriber, and the
Company and otherwise in accordance with Section 6.19 of the Merger Agreement. This Agreement may not be waived except by an instrument in writing signed by the party against whom enforcement of waiver is sought. 

11. Binding Effect. Except as otherwise provided herein, this Agreement shall be binding upon and inure to the benefit of the parties
and their heirs, successors and assigns, and the agreements, representations, warranties and acknowledgments contained herein shall be deemed to be made by and be binding upon such heirs, executors, administrators, successors, legal representatives
and assigns. Except to the extent set forth in Sections 12(a) and 12(b), this Agreement does not confer any rights or remedies upon any person or entity other than the parties hereto and their heirs, successors and permitted assigns,.

 12. Limited Recourse; Enforcement. 

(a) Notwithstanding anything that may be expressed or implied in this Agreement or any document or instrument delivered contemporaneously
herewith, without limiting Parent’s obligations hereunder or in connection with the transactions contemplated hereby, Parent, by its acceptance of the benefits of the Subscriptions provided herein, covenants, agrees and acknowledges that no
Person other than the Subscriber and its permitted successors and assigns shall have any obligation hereunder or in connection with the transactions contemplated hereby and that, notwithstanding that the Subscriber or any of its permitted assigns
may be a partnership, limited liability company or limited company, it has no rights of recovery against and no recourse hereunder or under any documents or instruments delivered in connection herewith or in respect of any oral representations made
or alleged to be made in connection herewith or therewith shall be had against any Non-Recourse Party (other than the Subscriber and its permitted assigns), whether by the enforcement of any assessment or by
any legal or equitable proceeding, or by virtue of any applicable Law, it being agreed and acknowledged that no personal liability whatsoever shall attach to, be imposed on or otherwise be incurred by any
Non-Recourse Party (other than the Subscriber or its permitted assigns, subject to the terms and conditions of this Agreement) for any obligations of the Subscriber or any of their respective successors or
permitted assigns under this Agreement or any documents or instrument delivered in connection herewith or in respect of any oral representations made or alleged to be made in connection herewith or therewith or for any claim (whether at law or
equity or in tort, contract or otherwise) based on, in respect of, or by reason of such obligations or their creation. The Non-Recourse Parties are hereby made third party beneficiaries of this
Section 12(a) and may rely on and enforce the provisions of this Section 12(b). As used herein, the term “Non-Recourse Parties” means,
collectively, the Subscriber and any and all former, current or future direct or indirect equityholders, controlling persons, directors, officers, employees, agents, members, managers, management companies, general or limited partners, assignees or
Affiliates of the Subscriber and any and all former, current or future direct or indirect equityholders, controlling persons, directors, officers, employees, agents, members, managers, management companies, general or limited partners, assignees or
Affiliates of any of the foregoing, and any and all former, current or future heirs, executors, administrators, trustees, successors or assigns of any of the foregoing, in each case other than Parent and its Subsidiaries. 

  
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 (b) The Company is hereby made an intended third party beneficiary of the rights granted to
Parent hereby solely for the purpose of directly enforcing the obligations of Parent and the Subscriber under this Agreement through an action for specific performance and, in connection therewith, the Company has the right to seek and the right to
obtain an injunction, or other appropriate form of specific performance or equitable relief, to cause Parent to cause, or to directly cause, Subscriber to consummate, directly or indirectly, the Backstop Subscription as, solely to the extent that
Parent is permitted to enforce the Backstop Subscription pursuant to the terms and conditions hereof and for no other purpose (including, without limitation, any claim for monetary damages hereunder or thereunder). 

13. Specific Performance. The parties agree that irreparable damage for which monetary damages, even if available, would not be an
adequate remedy, would occur if the parties hereto do not perform the provisions of this Agreement in accordance with its specified terms or otherwise breach or threaten to breach such provisions. The parties acknowledge and agree that the parties
hereto shall be entitled, in addition to any other remedy to which they are entitled at law or in equity, to an injunction, specific performance and other equitable relief to prevent breaches or threatened breaches of this Agreement and to enforce
specifically the terms and provisions hereof. Without limiting the foregoing, each of the parties agrees that it will not oppose the granting of an injunction, specific performance and other equitable relief on the basis that (i) there is
adequate remedy at law or (ii) an award of specific performance is not an appropriate remedy for any reason at law or in equity. Any party seeking an order or injunction to prevent breaches or threatened breaches and to enforce specifically the
terms and provisions of this Agreement shall not be required to provide any bond or other security in connection with any such order or injunction. 

14. Agreement. This Agreement constitutes the entire agreement of Parent and the Subscriber relating to the matters contained herein,
superseding all prior contracts or agreements, whether oral or written. The headings of this Agreement are for convenience of reference and shall not form part of, or affect the interpretation of, this Agreement. 

15. Governing Law; Jurisdiction. This Agreement, and all claims or causes of action (whether in contract, tort or otherwise) that may be
based upon, arise out of or relate to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related to any representation or warranty made in or in
connection with this Agreement) shall be governed by and construed in accordance with the law of the State of Delaware, regardless of the laws that might otherwise govern under applicable principles of conflicts of laws. Each of the parties hereto
hereby irrevocably and unconditionally (a) submits, for itself and its property, to the exclusive jurisdiction of the Delaware Court of Chancery (or, only if the Delaware Court of Chancery declines to accept jurisdiction over a particular
matter, the Delaware Supreme Court or the United States District Court for the District of Delaware), and any appellate court from any thereof, in any action or proceeding arising out of or relating to this Agreement or the negotiation, execution or
performance of this Agreement (including any claim or cause of action based upon, arising out of or related to any representation or warranty made in or in connection with this Agreement), or for recognition or enforcement of any judgment, and
agrees that all claims in respect of any such action or proceeding shall be heard and determined in such Delaware Court of Chancery (or, only if the Delaware Court of Chancery declines to accept jurisdiction over a particular matter, the Delaware
Supreme Court or the United States District Court for the District of Delaware), (b) waives, to the fullest extent it may legally and effectively do so, any objection which it may now or hereafter have to the laying of venue of any suit, action or
proceeding arising out of or relating to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related to any representation or warranty made in or in
connection with this Agreement) in the Delaware Court of Chancery or in the Delaware Supreme Court or the United States District Court for the District of Delaware, (c) waives, to the fullest extent permitted by Law, the defense of an
inconvenient forum to the maintenance of such action or proceeding in any such court and (d) agrees that a final judgment in any such suit, action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the
judgment or in any other manner provided by Law. Each of the parties hereto agrees that service of process, summons, notice or document by registered mail addressed to it at the applicable address set forth in Section 8
shall be effective service of process for any suit, action or proceeding brought in any such court. 

  
 10 

 16. Waiver of Jury Trial. THE PARTIES HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE
ANY RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY OR THE ACTIONS OF THE PARTIES IN THE NEGOTIATION, EXECUTION, PERFORMANCE AND ENFORCEMENT OF THIS
AGREEMENT, WHETHER NOW EXISTING OR HEREAFTER ARISING, AND WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE. THE PARTIES AGREE THAT ANY OF THEM MAY FILE A COPY OF THIS PARAGRAPH WITH ANY COURT AS WRITTEN EVIDENCE OF THE KNOWING, VOLUNTARY AND
BARGAINED FOR AGREEMENT AMONG THE PARTIES IRREVOCABLY TO WAIVE TRIAL BY JURY AND THAT ANY ACTION OR PROCEEDING WHATSOEVER BETWEEN THEM RELATING TO THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY SHALL INSTEAD BE TRIED IN A COURT OF COMPETENT
JURISDICTION BY A JUDGE SITTING WITHOUT A JURY. 
 17. 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 that is valid and enforceable. 

18. Construction. The headings in this Agreement are inserted for convenience and identification only and are not intended to describe,
interpret, define, or limit the scope, extent or intent of this Agreement or any provision hereof. The rule of construction that an agreement shall be construed strictly against the drafter shall not apply to this Agreement. 

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

20. Counterparts. This Agreement may be executed in two or more counterparts (any of which may be delivered by electronic transmission),
each of which shall constitute an original, and all of which taken together shall constitute one and the same instrument. 
 21.
Interpretation. The headings, titles and subtitles used in this Agreement are for convenience only and are not to be considered in construing or interpreting this Agreement. In this Agreement, unless the context otherwise requires:
(i) any pronoun used in this Agreement shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns, pronouns and verbs shall include the plural and vice versa; (ii) “including” (and with
correlative meaning “include”) means including without limiting the generality of any description preceding or succeeding such term and shall be deemed in each case to be followed by the words “without limitation”; (iii) the
words “herein,” “hereto,” and “hereby” and other words of similar import in this Agreement shall be deemed in each case to refer to this Agreement as a whole and not to any particular section or other subdivision of
this Agreement; and (iv) the term “Dollars” or “$” means United States dollars. The parties have participated jointly in the negotiation and drafting of this Agreement. Consequently, in the event an ambiguity or question of
intent or interpretation arises, this Agreement shall be construed as if drafted jointly by the parties hereto, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of the authorship of any provision of this
Agreement. 
 [Remainder of page intentionally left blank] 

  
 11 

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

			
	NEBULA CARAVEL ACQUISITION CORP.
		
	By:	 	/s/Adam H. Clammer
		 	Name: Adam H. Clammer
		 	Title: Chief Executive Officer

  

			
	SUBSCRIBER:
	
	Accepted and agreed:
	
	TRUE WIND CAPITAL II, L.P.
	By: True Wind Capital GP II, LLC, its general partner
		
	By:	 	 /s/Adam H. Clammer

		 	Name: Adam H. Clammer
		 	Title: Managing Member
	
	TRUE WIND CAPITAL II-A, L.P.
	By: True Wind Capital GP II, LLC, its general partner
		
	By:	 	 /s/Adam H. Clammer

		 	Name: Adam H. Clammer
		 	Title: Managing Member

  

			
	Address of Subscriber:
	
	Four Embarcadero Center, Suite 2100
	San Francisco, California 94111
	Attention:	 	[                 ]
	Email:	 	[                 ]
	
	with a copy to (which will not constitute notice):
	
	Simpson Thacher & Bartlett LLP
	2475 Hanover Street
	Palo Alto, CA 94304
	Attention:	 	[                 ]
		 	[                 ]
	Email:	 	[                 ]
		 	[                 ]EX-10.3

 Exhibit 10.3 

STRICTLY CONFIDENTIAL 
 FORM OF
STOCKHOLDER SUPPORT AGREEMENT 
 This Stockholder Support Agreement (this “Agreement”) is dated as of February 10,
2021, by and among Nebula Caravel Acquisition Corp., a Delaware corporation (“Parent”), the Persons set forth on Schedule I hereto (each, a “Company Stockholder” and, collectively, the “Company
Stockholders”), and A Place for Rover, Inc. d/b/a Rover, a Delaware corporation (the “Company”). Capitalized terms used but not defined herein shall have the respective meanings ascribed to such terms in the Merger
Agreement (as defined below). 
 RECITALS 

WHEREAS, as of the date hereof, the Company Stockholders are the holders of record and the “beneficial owners” (within the meaning
of Rule 13d-3 under the Exchange Act) of such number of shares of Company Capital Stock as are indicated opposite each of their names on Schedule I attached hereto (all such shares of Company Capital
Stock, together with any shares of Company Capital Stock of which ownership of record or the power to vote (including, without limitation, by proxy or power of attorney) is hereafter acquired by any such Company Stockholder during the period from
the date hereof through the Expiration Time are referred to herein as the “Subject Shares”); 
 WHEREAS, concurrently with
the execution and delivery of this Agreement, Parent, Fetch Merger Sub, Inc., a Delaware corporation and a direct wholly-owned subsidiary of Parent (“Merger Sub”), and the Company, are entering into a Business Combination Agreement
and Plan of Merger (as amended, restated, modified or supplemented from time to time, the “Merger Agreement”), dated as of the date hereof, pursuant to which, among other transactions, Merger Sub shall merge with and into the
Company, with the Company continuing on as the surviving entity, on the terms and conditions set forth therein; and 
 WHEREAS, as an
inducement to Parent and the Company to enter into the Merger Agreement and to consummate the transactions contemplated thereby, the parties hereto desire to agree to certain matters as set forth herein. 

AGREEMENT 
 NOW,
THEREFORE, in consideration of the foregoing and the mutual agreements contained herein, and intending to be legally bound hereby, the parties hereto hereby agree as follows: 

ARTICLE I 
 STOCKHOLDER SUPPORT
AGREEMENT; COVENANTS 
 1.1 Binding Effect of Merger Agreement. Each Company Stockholder hereby acknowledges that it has read the
Merger Agreement and this Agreement and has had the opportunity to consult with its tax and legal advisors. Each Company Stockholder shall be bound by and comply with the first sentence of Section 6.5 (Acquisition Proposals) and
Section 9.12 (Publicity) of the Merger Agreement (and any relevant definitions contained in any such Sections) as if (a) such Company Stockholder was an original signatory to the Merger Agreement with respect to such provisions, and
(b) each reference to the “Company” contained in the first sentence of Section 6.5 of the Merger Agreement (other than the references to the “Company” in clause (i) thereof or in the definition of “Acquisition
Proposal”) also referred to each such Company Stockholder; provided, that the provision of non-public information or data concerning the Company or any of the Company’s Subsidiaries by such
Company Stockholder to its employees, partners, officers, directors, representatives or advisors shall not be deemed a violation of Section 6.5 of the Merger Agreement or this Section 1.1. 

 1.2 No Transfer. During the period commencing on the date hereof and ending on the
earlier of (a) the Effective Time and (b) such date and time as the Merger Agreement shall be terminated in accordance with Section 8.1 thereof (the earlier of (a) and (b), the “Expiration Time”), each Company
Stockholder shall not (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly or indirectly, file (or participate in the filing of) a
registration statement with the SEC (other than the Proxy Statement/Registration Statement) or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Exchange
Act, with respect to any Subject Shares, (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Subject Shares or (iii) publicly announce any
intention to effect any transaction specified in clause (i) or (ii) (clauses (i), (ii) and (iii), collectively, a “Transfer”). Notwithstanding the foregoing, each Company Stockholder may make Transfers of Subject Shares:
(A) to (1) the Company’s officers or directors, (2) any Affiliates or family members of the Company’s officers or directors, or (3) any direct or indirect partners, members or equity holders of such Person, any Affiliates of
such Person or any related investment funds or vehicles controlled or managed by such Persons or their respective Affiliates; (B) in the case of an individual, by gift to a member of the individual’s immediate family or to a trust, the
beneficiary of which is a member of the individual’s immediate family or an Affiliate of such Person, or to a charitable organization; (C) in the case of an individual, by virtue of laws of descent and distribution upon death of the
individual; (D) in the case of an individual, pursuant to a qualified domestic relations order, divorce settlement, divorce decree or separation agreement; (E) to a nominee or custodian of a Person to whom a Transfer would be permitted
under clauses (A) through (D) above; (F) to the Company; (G) to the Company in connection with the repurchase of such Person’s shares in connection with the termination of such Person’s employment with the Company pursuant
to contractual agreements with the Company; (H) to satisfy tax withholding obligations in connection with the exercise of options to purchase shares of Company Capital Stock or the vesting of Company stock-based awards; (I) in payment on a
“net exercise” or “cashless” basis of the exercise or purchase price with respect to the exercise of options to purchase shares of Company Capital Stock; (J) in connection with (but subject to the completion of) a bona fide
liquidation, merger, stock exchange, reorganization, tender offer approved by the Board of Directors of the Company or a duly authorized committee thereof or other similar transaction which results in all of the Company’s stockholders having
the right to exchange their shares Common Stock for cash, securities or other property subsequent to the Closing Date; (K) in connection with any legal, regulatory or other order; and (L) in connection with any bona fide mortgage,
encumbrance, pledge or other grant of a security interest in Subject Shares to one or more financial or lending institutions as collateral or security for or in connection with any bona fide loans, advances or extensions of credit or debt
transaction (or enforcement thereunder) entered into by such Company Stockholder or any of its Affiliates, or any refinancings thereof, and any Transfers of such Subject Shares upon foreclosure thereof; provided, however, that in the
case of the foregoing clauses (A) through (L) the transferee must enter into a written agreement with the Company and Parent agreeing to be bound by this Agreement prior to the effectiveness of such Transfer. 

1.3 New Shares. In the event that (a) any Subject Shares or other Securities are issued to a Company Stockholder after the date of
this Agreement pursuant to any stock dividend, stock split, recapitalization, reclassification, combination or exchange of Subject Shares of, on or affecting the Subject Shares owned by such Company Stockholder, (b) a Company Stockholder
purchases or otherwise acquires beneficial ownership of any Subject Shares or other Securities after the date of this Agreement, or (c) a Company Stockholder acquires the right to vote or share in the voting of any Subject Shares or other
Securities after the date of this Agreement (such Subject Shares or other Securities, the “New Securities”), then such New Securities acquired or purchased by such Company Stockholder shall be subject to the terms of this Agreement
to the same extent as if they constituted the Subject Shares owned by such Company Stockholder as of the date hereof. 

  
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 1.4 Company Stockholder Agreements. From the date hereof until the Expiration Time,
each Company Stockholder hereby unconditionally and irrevocably agrees that, at any meeting of the stockholders of the Company (or any adjournment or postponement thereof), and in any action by written consent of the stockholders of the Company
distributed by the Board of Directors of the Company or otherwise undertaken as contemplated by the Merger Agreement or the transactions contemplated thereby, including in the form attached as Exhibit A (which written consent shall be
delivered promptly, and in any event within forty-eight (48) hours, after the Registration Statement (as contemplated by the Merger Agreement) is declared effective and delivered or otherwise made available to the stockholders of Parent and the
stockholders of the Company), such Company Stockholder shall, if a meeting is held, appear at the meeting, in person or by proxy, or otherwise cause its Subject Shares to be counted as present thereat for purposes of establishing a quorum, and such
Company Stockholder shall vote or provide consent (or cause to be voted or consented), in person or by proxy, all of its Subject Shares: 

(a) to approve and adopt the Merger Agreement and the transactions contemplated thereby, including the Merger; 

(b) in any other circumstances upon which a consent or other approval is required under the Company’s Governing Documents or under any
agreements between the Company and its stockholders with respect to the Merger Agreement or the transactions contemplated thereby in accordance with the terms of the Merger Agreement, to vote, consent or approve (or cause to be voted, consented or
approved) all of such Company Stockholder’s Subject Shares held at such time in favor thereof; 
 (c) against any merger agreement,
merger, consolidation, combination, sale of substantial assets, reorganization, recapitalization, dissolution, liquidation or winding up of or by the Company (other than the Merger Agreement and the transactions contemplated thereby); 

(d) against any change in the business, management or Board of Directors of the Company (except in connection with the Merger Agreement and the
transactions contemplated thereby); and 
 (e) against any proposal, action or agreement that to the knowledge of such Company Stockholder,
would (i) impede, frustrate, prevent or nullify any provision of this Agreement, the Merger Agreement or the Merger, (ii) result in a breach in any respect of any covenant, representation, warranty or any other obligation or agreement of
the Company under the Merger Agreement, (iii) result in any of the conditions set forth in Article VII of the Merger Agreement not being fulfilled or (iv) change in any manner the capitalization of the Company, including the voting rights
of any class of capital stock of the Company or any other Securities (except in connection with the Merger Agreement and the transactions contemplated thereby). 

Each Company Stockholder hereby agrees that it shall not commit or agree to take any action inconsistent with the foregoing. 

1.5 Agreement as a Company Stockholder. Notwithstanding any provision of this Agreement to the contrary, this Agreement shall apply to
each Company Stockholder solely in such Company Stockholder’s capacity as a record or beneficial holder of the Subject Shares, and not in any Company Stockholder’s capacity (or the capacity of any director, officer, employee, equityholder,
member, partner or Affiliate of a Company Stockholder) as a director, officer or employee of the Company or any of its Subsidiaries or in any Company Stockholder’s capacity (or the capacity of any director, officer, employee, equityholder,
member, partner or Affiliate of a Company Stockholder) as a trustee or fiduciary of any employee benefit plan or trust. 

  
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 1.6 Affiliate Agreements. Each Company Stockholder hereby agrees and consents to the
termination of all Affiliate Arrangements set forth on Section 6.14 of the Company Disclosure Letter to which such Company Stockholder is party, effective as of the Effective Time without any further liability or obligation to the Company, the
Company’s Subsidiaries or Parent. 
 1.7 Deliverables. On the Closing Date, each Company Stockholder will deliver to the Company
a duly executed copy of (a) that certain Investor Rights Agreement, by and among Parent, the Company, the Sponsor and certain of the Company’s stockholders or their respective Affiliates, as applicable, substantially in the form attached
as Exhibit C to the Merger Agreement and (b) that certain Lock-Up Agreement, by and among Parent, the Sponsor and certain of the Company’s stockholders, substantially in the form attached as Exhibit
D to the Merger Agreement. Upon request by the Company prior to the Closing at the Company’s sole discretion, each Company Stockholder will deliver a duly executed copy of the conversion request with respect to any series of preferred stock of
the Company designated by Parent substantially in the form set forth on Exhibit B hereto.1 

1.8 Further Assurances. Each Company Stockholder shall execute and deliver, or cause to be delivered, such additional documents, and
take, or cause to be taken, all such further actions and do, or cause to be done, all things reasonably necessary (including under applicable Laws), to effect the actions required to consummate the Merger and the other transactions contemplated by
this Agreement and the Merger Agreement, in each case, on the terms and subject to the conditions set forth therein and herein, as applicable. 

1.9 No Inconsistent Agreement. Each Company Stockholder hereby represents and covenants that such Company Stockholder has not entered
into, and shall not enter into, any agreement that would restrict, limit or interfere with the performance of such Company Stockholder’s obligations hereunder. 

1.10 No Challenges. Each Company Stockholder agrees not to commence or join in or knowingly facilitate, assist or encourage, and agrees
to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Parent, Merger Sub, the Company or any of their respective successors or directors (except in any case arising out
of the fraud of such parties), (a) challenging the validity of, or seeking to enjoin the operation of, any provision of this Agreement or (b) alleging a breach of any fiduciary duty of any Person in connection with the evaluation, negotiation
or entry into the Merger Agreement. Notwithstanding the foregoing, nothing herein shall be deemed to prohibit such Company Stockholder from enforcing such Company Stockholder’s rights under this Agreement and the other agreements entered into
by such Company Stockholder in connection herewith, or otherwise in connection with the Merger, including such Company Stockholder’s right to receive such Company Stockholder’s portion of the Aggregate Merger Consideration as provided in
the Merger Agreement. 
 1.11 Election. Each Company Stockholder agrees not to make (or cause to be made) a Cash Election with respect
to the Subject Shares, and shall make or otherwise be deemed to have made a Stock Election with respect to such shares in accordance with the terms of the Merger Agreement. 

1.12 Consent to Disclosure. Each Company Stockholder hereby consents to the publication and disclosure in the Proxy
Statement/Registration Statement (and, as and to the extent otherwise required by applicable securities Laws or the SEC or any other securities authorities, any other documents or communications provided by Parent or the Company to any Governmental
Authority or to securityholders of Parent) of such Company Stockholder’s identity and beneficial ownership of Subject Shares and the nature of such Company Stockholder’s commitments, arrangements and understandings under and relating 

 

	1 	 Note to Draft: See Exhibit B hereto.

  
 -4- 

 
to this Agreement and, if deemed appropriate by Parent or the Company, a copy of this Agreement. Each Company Stockholder will promptly provide any information reasonably requested by Parent or
the Company for any regulatory application or filing made or approval sought in connection with the transactions contemplated by the Merger Agreement (including filings with the SEC), except for any information that is subject to attorney-client
privilege or confidentiality obligations (provided, that with respect to any confidentiality obligations, (a) such Company Stockholder will use its commercially reasonable efforts to obtain a waiver of any such confidentiality
obligations and (b) the parties shall cooperate in good faith to enable disclosure of such information to the maximum extent possible in a manner that complies with such confidentiality obligation). 

ARTICLE II 
 REPRESENTATIONS AND
WARRANTIES 
 2.1 Representations and Warranties of the Company Stockholders. Each Company Stockholder represents and warrants as
of the date hereof to Parent and the Company (solely with respect to itself, himself or herself and not with respect to any other Company Stockholder) as follows: 

(a) Organization; Due Authorization. If such Company Stockholder is not an individual, it is duly organized, validly existing and in
good standing under the Laws of the jurisdiction in which it is incorporated, formed, organized or constituted, and the execution, delivery and performance of this Agreement and the consummation of the transactions contemplated hereby are within
such Company Stockholder’s corporate, limited liability company or organizational powers and have been duly authorized by all necessary corporate, limited liability company or organizational actions on the part of such Company Stockholder. If
such Company Stockholder is an individual, such Company Stockholder has full legal capacity, right and authority to execute and deliver this Agreement and to perform his or her obligations hereunder. This Agreement has been duly executed and
delivered by such Company Stockholder and, assuming due authorization, execution and delivery by the other parties to this Agreement, this Agreement constitutes a legally valid and binding obligation of such Company Stockholder, enforceable against
such Company Stockholder in accordance with the terms hereof, subject to the Enforceability Exceptions. If this Agreement is being executed in a representative or fiduciary capacity, the Person signing this Agreement has full power and authority to
enter into this Agreement on behalf of the applicable Company Stockholder. 
 (b) Ownership. Such Company Stockholder is the record
and beneficial owner (as defined in the Securities Act) of, and has good title to, all of such Company Stockholder’s Subject Shares, and there exist no Liens or any other limitation or restriction (including any restriction on the right to
vote, sell or otherwise dispose of such Subject Shares (other than transfer restrictions under the Securities Act)) affecting any such Subject Shares, other than Liens pursuant to (i) this Agreement, (ii) the Company’s Governing
Documents, (iii) the Merger Agreement, (iv) any applicable securities Laws or (v) any matters set forth in the Company Disclosure Letter. Such Company Stockholder’s Subject Shares are the only Securities in the Company owned of
record or beneficially by such Company Stockholder on the date of this Agreement, and none of such Company Stockholder’s Subject Shares are subject to any proxy, voting trust or other agreement or arrangement with respect to the voting of such
Subject Shares, in each case except as set forth in the Company Disclosure Letter. Other than as set forth opposite such Company Stockholder’s name on Schedule I, such Company Stockholder does not hold or own any rights to acquire
(directly or indirectly) any Securities. 
 (c) No Conflicts. The execution and delivery of this Agreement by such Company Stockholder
does not, and the performance by such Company Stockholder of his, her or its obligations hereunder will not, (i) if such Company Stockholder is not an individual, conflict with or result in a violation of the organizational documents of such
Company Stockholder or (ii) require any consent or approval that has not been given or other action that has not been taken by any Person (including under any Contract binding upon such Company Stockholder or such Company Stockholder’s
Subject Shares), in each case of the foregoing clauses (i) or (ii), except as would not prevent, enjoin or materially delay the performance by such Company Stockholder of its, his or her obligations under this Agreement. 

  
 -5- 

 (d) Litigation. There are no Actions pending against such Company Stockholder, or to
the knowledge of such Company Stockholder threatened against such Company Stockholder, before (or, in the case of threatened Actions, that would be before) any arbitrator or any Governmental Authority, which in any manner challenges or seeks to
prevent, enjoin or materially delay the performance by such Company Stockholder of its, his or her obligations under this Agreement. 
 (e)
Adequate Information. Such Company Stockholder is a sophisticated stockholder and has adequate information concerning the business and financial condition of Parent and the Company to make an informed decision regarding this Agreement and the
transactions contemplated by the Merger Agreement and has independently and without reliance upon Parent or the Company and based on such information as such Company Stockholder has deemed appropriate, made its own analysis and decision to enter
into this Agreement. Such Company Stockholder acknowledges that Parent and the Company have not made and do not make to such Company Stockholder any representation or warranty, whether express or implied, of any kind or character except as expressly
set forth in this Agreement. Such Company Stockholder acknowledges that the agreements contained herein with respect to the Subject Shares held by such Company Stockholder are irrevocable. 

(f) Brokerage Fees. Except as described on Section 4.16 of the Company Disclosure Letter, no broker, finder, investment banker or
other Person is entitled to any brokerage fee, finders’ fee or other commission in connection with the transactions contemplated by the Merger Agreement based upon arrangements made by such Company Stockholder, for which the Company or any of
its Affiliates may become liable. 
 (g) Acknowledgment. Such Company Stockholder understands and acknowledges that each of Parent and
the Company is entering into the Merger Agreement in reliance upon such Company Stockholder’s execution and delivery of this Agreement. 

(h) No Other Representations or Warranties. Except for the representations and warranties made by each Company Stockholder in this
ARTICLE II, no Company Stockholder nor any other Person makes any express or implied representation or warranty to Parent in connection with this Agreement or the transactions contemplated by this Agreement, and each Company Stockholder
expressly disclaims any such other representations or warranties. 
 ARTICLE III 

MISCELLANEOUS 
 3.1
Termination. This Agreement and all of its provisions shall terminate and be of no further force or effect upon the earlier of (a) the Expiration Time and (b) as to each Company Stockholder, the written agreement of Parent, the
Company and such Company Stockholder. Upon such termination of this Agreement, all obligations of the parties under this Agreement will terminate, without any liability or other obligation on the part of any party hereto for whom this Agreement has
been terminated, and no party hereto shall have any claim against any party hereto for whom this Agreement has been terminated (and no Person shall have any rights against any party hereto for whom this Agreement has been terminated), whether under
contract, tort or otherwise, in each case under this Agreement, with respect to the subject matter hereof or in respect of the transactions contemplated hereby (excluding, for the avoidance of doubt any obligation or liability, or any claim or
rights, under the Merger Agreement or the other Ancillary Agreements or with respect to the subject matter thereof or in respect of the transaction contemplated thereby); provided, however, that the termination of this Agreement shall
not relieve any party hereto from liability arising in respect of any willful and material breach of this Agreement prior to such termination. This ARTICLE III shall survive the termination of this Agreement. 

 

  
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 3.2 Governing Law; Jurisdiction. This Agreement, and all claims or causes of action
(whether in contract, tort or otherwise) that may be based upon, arise out of or relate to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related to
any representation or warranty made in or in connection with this Agreement) shall be governed by and construed in accordance with the law of the State of Delaware, regardless of the laws that might otherwise govern under applicable principles of
conflicts of laws. Each of the parties hereto hereby irrevocably and unconditionally (a) submits, for itself and its property, to the exclusive jurisdiction of the Delaware Court of Chancery (or, only if the Delaware Court of Chancery declines
to accept jurisdiction over a particular matter, the Delaware Supreme Court or the United States District Court for the District of Delaware), and any appellate court from any thereof, in any action or proceeding arising out of or relating to this
Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related to any representation or warranty made in or in connection with this Agreement), or for
recognition or enforcement of any judgment, and agrees that all claims in respect of any such action or proceeding shall be heard and determined in such Delaware Court of Chancery (or, only if the Delaware Court of Chancery declines to accept
jurisdiction over a particular matter, the Delaware Supreme Court or the United States District Court for the District of Delaware), (b) waives, to the fullest extent it may legally and effectively do so, any objection which it may now or hereafter
have to the laying of venue of any suit, action or proceeding arising out of or relating to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action based upon, arising out of or related
to any representation or warranty made in or in connection with this Agreement) in the Delaware Court of Chancery or in the Delaware Supreme Court or the United States District Court for the District of Delaware, (c) waives, to the fullest
extent permitted by Law, the defense of an inconvenient forum to the maintenance of such action or proceeding in any such court and (d) agrees that a final judgment in any such suit, action or proceeding shall be conclusive and may be enforced
in other jurisdictions by suit on the judgment or in any other manner provided by Law. Each of the parties hereto agrees that service of process, summons, notice or document by registered mail addressed to it at the applicable address set forth in
Section 3.8 shall be effective service of process for any suit, action or proceeding brought in any such court. 

3.3 Waiver of Jury Trial. THE PARTIES HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE ANY RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING
OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY OR THE ACTIONS OF THE PARTIES IN THE NEGOTIATION, EXECUTION, PERFORMANCE AND ENFORCEMENT OF THIS AGREEMENT, WHETHER NOW EXISTING OR HEREAFTER
ARISING, AND WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE. THE PARTIES AGREE THAT ANY OF THEM MAY FILE A COPY OF THIS PARAGRAPH WITH ANY COURT AS WRITTEN EVIDENCE OF THE KNOWING, VOLUNTARY AND BARGAINED FOR AGREEMENT AMONG THE PARTIES IRREVOCABLY
TO WAIVE TRIAL BY JURY AND THAT ANY ACTION OR PROCEEDING WHATSOEVER BETWEEN THEM RELATING TO THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY SHALL INSTEAD BE TRIED IN A COURT OF COMPETENT JURISDICTION BY A JUDGE SITTING WITHOUT A JURY. 

3.4 Assignment. This Agreement and all of the provisions hereof will be binding upon and inure to the benefit of the parties hereto and
their respective heirs, successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder will be assigned (including by operation of law) without the prior written consent of the parties hereto. 

  
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 3.5 Specific Performance. The parties agree that irreparable damage for which
monetary damages, even if available, would not be an adequate remedy, would occur in the event that the parties hereto do not perform the provisions of this Agreement in accordance with its specified terms or otherwise breach or threaten to breach
such provisions. The parties acknowledge and agree that the parties hereto shall be entitled, in addition to any other remedy to which they are entitled at law or in equity, to an injunction, specific performance and other equitable relief to
prevent breaches or threatened breaches of this Agreement and to enforce specifically the terms and provisions hereof. Without limiting the foregoing, each of the parties agrees that it will not oppose the granting of an injunction, specific
performance and other equitable relief on the basis that (a) there is adequate remedy at law or (b) an award of specific performance is not an appropriate remedy for any reason at law or in equity. Any party seeking an order or injunction
to prevent breaches or threatened breaches and to enforce specifically the terms and provisions of this Agreement shall not be required to provide any bond or other security in connection with any such order or injunction. 

3.6 Amendment. This Agreement may not be amended, changed, supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by Parent, the Company and the Company Stockholders. 
 3.7 Severability. If
any provision of this Agreement is held invalid or unenforceable by any court of competent jurisdiction, the other provisions of this Agreement will remain in full force and effect. Any provision of this Agreement held invalid or unenforceable only
in part or degree will remain in full force and effect to the extent not held invalid or unenforceable. 
 3.8 Notices. All notices
and other communications under this Agreement shall be in writing and shall be deemed given (a) when delivered personally by hand (with written confirmation of receipt by other than automatic means, whether electronic or otherwise), (b) when
sent by email (with no automated reply, such as an out-of-office notification, no mail undeliverable notification or other rejection notice) or (c) one (1) Business
Day following the day sent by an internationally recognized overnight courier (with written confirmation of receipt), in each case, at the following addresses or e-mail addresses (or to such other address or e-mail address as a party may have specified by notice given to the other party pursuant to this provision): 

If to Parent: 
 Nebula
Caravel Acquisition Corp. 
 Four Embarcadero Center, Suite 2100 

San Francisco, California 94111 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

 with a copy (which will not constitute actual or constructive notice) to: 

Simpson Thacher & Bartlett LLP 

2475 Hanover Street 
 Palo Alto,
CA 94304 
  

	 	Attention:	 [                ]

  

	 	 	 [                ]

  

	 	Email:	 [                ]

  

	 	 	 [                ]

  
 -8- 

 If to the Company: 

A Place for Rover, Inc. 
 711
Capitol Way S., Suite 204, 
 Olympia, WA 98501 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

 with a copy (which will not constitute actual or constructive notice) to: 

Wilson Sonsini Goodrich & Rosati 

One Market Plaza 
 Spear Tower,
Suite 3300 
 San Francisco, CA 94105-1126 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

 and 

Wilson Sonsini Goodrich & Rosati 

701 Fifth Avenue, Suite 5100 

Seattle, WA 98104 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

  

	 	 	 [                ]

 If to a Company Stockholder: 

To such Company Stockholder’s address set forth in Schedule I 

with a copy (which will not constitute actual or constructive notice) to: 

Wilson Sonsini Goodrich & Rosati 

One Market Plaza 
 Spear Tower,
Suite 3300 
 San Francisco, CA 94105-1126 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

 and 

Wilson Sonsini Goodrich & Rosati 

701 Fifth Avenue, Suite 5100 

Seattle, WA 98104 
  

	 	Attention:	 [                ]

  

	 	Email:	 [                ]

  

	 	 	 [                ]

 3.9 Counterparts. This Agreement may be executed in two or more counterparts (any of which may be delivered by
electronic transmission), each of which shall constitute an original, and all of which taken together shall constitute one and the same instrument. 

  
 -9- 

 3.10 Entire Agreement. This Agreement and the agreements referenced herein constitute
the entire agreement and understanding of the parties hereto in respect of the subject matter hereof and supersede all prior understandings, agreements or representations by or among the parties hereto to the extent they relate in any way to the
subject matter hereof. 
 3.11 Several and Not Joint Obligations. The representations, warranties, covenants, agreements, obligations
and liability of the Company Stockholders party to this Agreement shall be several, and not joint. Notwithstanding any other provision of this Agreement, in no event will any Company Stockholder be liable for any other Person’s breach of such
other Person’s representations, warranties, covenants, or agreements contained in this Agreement, the Merger Agreement or any other Ancillary Agreement. 

[Remainder of page intentionally left blank] 

  
 -10- 

 IN WITNESS WHEREOF, the Company Stockholders, Parent, and the Company have each caused this
Stockholder Support Agreement to be duly executed as of the date first written above. 
  

			
	COMPANY STOCKHOLDERS:
	
	 [________________]

		
	 By:
	 	          

		 	 Name:

		 	 Title:

 [Signature Page to Stockholder Support Agreement] 

 
			
	PARENT:
	
	 NEBULA CARAVEL ACQUISITION CORP.

		
	 By:
	 	          

		 	 Name:

		 	 Title:

 [Signature Page to Stockholder Support Agreement] 

 
			
	COMPANY:
	
	 A PLACE FOR ROVER, INC.

		
	 By:
	 	          

		 	Name:
		 	 Title:

 [Signature Page to Stockholder Support Agreement] 

 Schedule I 

Company Stockholder Subject Shares 
  

																																					
	 Holder
	  	Common	 	  	Series A
Preferred	 	  	Series B
Preferred	 	  	Series C
Preferred	 	  	Series D
Preferred	 	  	Series E
Preferred	 	  	Series F
Preferred	 	  	Series G
Preferred	 	  	Notice
Information	 
	 [•]2
	  				  				  				  				  				  				  				  				  			
		  				  				  				  				  				  				  				  				  			
		  				  				  				  				  				  				  				  				  			
		  				  				  				  				  				  				  				  				  			
		  				  				  				  				  				  				  				  				  			
	 Total:
	  				  				  				  				  				  				  				  				  			

  
  

	2 	 Note to Draft: To be populated with the name, address and holdings of each Company Stockholder executing
this Agreement. 

 Exhibit A 

Written Consent 
 ACTION
BY WRITTEN CONSENT 
 OF 

THE STOCKHOLDERS 
 OF

 A PLACE FOR ROVER, INC. 
  

 
 Pursuant to
Section 228 of the Delaware General Corporation Law and the bylaws of A Place for Rover, Inc., a Delaware corporation (the “Company”), the undersigned, constituting the holders of the Company’s issued and outstanding stock
having not less than the minimum number of votes that would be necessary to authorize or take such actions at a meeting at which all shares entitled to vote thereon were present and voted, hereby take the following actions by written consent: 

APPROVAL OF BUSINESS COMBINATION AGREEMENT AND RELATED AGREEMENTS 

WHEREAS, prior to the execution of this written consent, the Company’s Board of Directors (the “Board”)
approved that certain Business Combination Agreement and Plan of Merger (as it may be amended or supplemented, the “Business Combination Agreement”) attached hereto as Exhibit A, by and among Nebula Caravel Acquisition
Corp., a Delaware corporation (“Parent”), Fetch Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Parent (“Merger Sub”) and the Company, pursuant to which Merger Sub will merge with
and into the Company, with the Company surviving as a wholly owned subsidiary of Parent (such transaction, the “Merger”) (capitalized terms used but not defined herein shall have the respective meanings assigned to such terms in the
Business Combination Agreement); 
 WHEREAS, the Board has declared that the Business Combination Agreement and the documents,
instruments, certificates and agreements contemplated to be executed and delivered in connection with the Business Combination Agreement (collectively, the “Transaction Documents”) and the terms and
conditions of the Merger and the transactions contemplated by the Business Combination Agreement and the other Transaction Documents are advisable, fair to, and in the best interests of the Company and the stockholders of the Company, and
recommended that the stockholders of the Company adopt and approve the Business Combination Agreement and approve the Merger and the other transactions contemplated by the Transaction Documents; 

WHEREAS, the undersigned Company stockholders desire to adopt and approve the Business Combination Agreement and the other Transaction
Documents and approve the Merger and the other transactions contemplated by the Transaction Documents. 
 NOW, THEREFORE,
BE IT RESOLVED, that the undersigned Company stockholders hereby adopt and approve the Business Combination Agreement and the other Transaction Documents and approve the Merger and the other transactions contemplated by the Transaction
Documents. 
 RESOLVED FURTHER, that the directors of the Company are authorized and empowered to take any and all such further
action as may be deemed necessary or advisable to effectuate the purposes and intent of the resolutions hereby adopted. 

 RESOLVED FURTHER, that the officers of the Company are authorized and
empowered to take such other actions and sign such other documents as they deem necessary or advisable to carry out the intent of the foregoing resolutions, and all prior actions taken in connection therewith are hereby ratified and approved. 

[Signature pages follow] 

  
 2 

 This action by written consent shall be effective as of the date the Company receives the
requisite consent of the Company’s stockholders. By executing this action by written consent, each undersigned stockholder is giving written consent with respect to all shares of the Company’s capital stock held by such stockholder in
favor of the above resolutions. This action by written consent may be executed in any number of counterparts, each of which shall constitute an original and all of which together shall constitute one action. Any copy, facsimile or other reliable
reproduction of this action by written consent may be substituted or used in lieu of the original writing for any and all purposes for which the original writing could be used. This action by written consent shall be filed with the minutes of the
proceedings of the stockholders of the Company. 
  

							
		 		 	[•]
				
	Date:                             	 		 	By:	 	          

		 		 	[Name:
		 		 	Title:]

 Signature page to Action by Written Consent of the Stockholders of A Place for Rover,
Inc. 

  
 1 

 EXHIBIT A 

Business Combination Agreement and Plan of Merger 

 Exhibit B 

Written Consent 

[    ], 2021 
 A Place for Rover, Inc. 

2101 4th Avenue, Suite 400 
 Seattle, WA 

Attention: Chief Executive Officer 
 Re: Automatic
Conversion Request 
 Ladies and Gentlemen, 

Reference is made to (A) the Business Combination Agreement and Plan of Merger (as amended, restated, modified or supplemented from time
to time, the “Merger Agreement”), dated as of February [    ], 2021 by and among Nebula Caravel Acquisition Corp., a Delaware corporation (“Parent”), Fetch Merger Sub, Inc., a
Delaware corporation and a direct wholly owned subsidiary of Parent (“Merger Sub”), and A Place for Rover, Inc. d/b/a Rover, a Delaware corporation (the “Company”), pursuant to which, among other
transactions, Merger Sub is to merge with and into the Company, with the Company continuing on as the surviving entity, on the terms and conditions set forth therein and (B) the Company’s Amended and Restated Certificate of Incorporation
as currently in effect (as amended, restated, modified or supplemented from time to time, the “Certificate of Incorporation”). 

Pursuant to the Company’s Certificate of Incorporation, each share of a series of preferred stock of the Company (the
“Preferred Stock”) will automatically be converted into shares of common stock of the Company (the “Common Stock”) at the then effective Conversion Rate (as defined in the Certificate of Incorporation)
for such series upon the receipt by the Company of a written request for such conversion from the requisite holders of Preferred Stock pursuant to the terms of the Certificate of Incorporation, which conversion may be effective at such later date
for conversion specified in any such requests. 
 The undersigned hereby irrevocably requests that each share of Series [ ] Preferred
Stock of the Company be automatically converted into shares of Common Stock at the applicable Conversion Rate, in accordance with the terms of the Certificate of Incorporation, in each case effective immediately prior to the Effective Time (as
defined in the Merger Agreement), provided, however, that this request shall terminate and be of no further force or effect if the Merger Agreement is terminated in accordance with its terms. 

[signature page follows] 

  
 [Exhibit B to Stockholder
Support Agreement] 

 Please acknowledge your agreement with the terms and conditions contained in this letter
agreement by countersigning below. 
  

			
	[PREFERRED STOCKHOLDER]
		
	By:	 	        
	Name:	 	
	Title:	 	

  

			
	ACKNOWLEDGED AND AGREED,
	
	A PLACE FOR ROVER, INC.
		
	By:	 	        
	Name:	 	
	Title:

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