Document:

EX-10.3

 Exhibit 10.3 
 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 

1. PURPOSE. The purpose of this Plan is to provide incentives to attract, retain and motivate eligible persons whose present and potential
contributions are important to the success of the Company, and any Parents and Subsidiaries that exist now or in the future, by offering them an opportunity to participate in the Company’s future performance through the grant of Awards.
Capitalized terms not defined elsewhere in the text are defined in Section 27. 
 2. SHARES SUBJECT TO THE PLAN. 

2.1. Number of Shares Available. Subject to Sections 2.6 and 21 and any other applicable provisions hereof, the total number
of Shares reserved and available for grant and issuance pursuant to this Plan as of the date of adoption of the Plan by the Board, is 4,500,000 Shares plus (i) any reserved shares not issued or subject to outstanding grants under the
Company’s 2006 Equity Incentive Plan (the “Prior Plan”) on the Effective Date (as defined below), (ii) shares that are subject to stock options or other awards granted under the Prior Plan that cease to be subject to such
stock options or other awards by forfeiture or otherwise after the Effective Date, (iii) shares issued under the Prior Plan before or after the Effective Date pursuant to the exercise of stock options that are, after the Effective Date,
forfeited, (iv) shares issued under the Prior Plan that are repurchased by the Company at the original issue price and (v) shares that are subject to stock options or other awards under the Prior Plan that are used to pay the exercise
price of an option or withheld to satisfy the tax withholding obligations related to any award. 
 2.2. Lapsed,
Returned Awards. Shares subject to Awards, and Shares issued under the Plan under any Award, will again be available for grant and issuance in connection with subsequent Awards under this Plan to the extent such Shares: (a) are subject to
issuance upon exercise of an Option or SAR granted under this Plan but which cease to be subject to the Option or SAR for any reason other than exercise of the Option or SAR; (b) are subject to Awards granted under this Plan that are forfeited
or are repurchased by the Company at the original issue price; (c) are subject to Awards granted under this Plan that otherwise terminate without such Shares being issued; or (d) are surrendered pursuant to an Exchange Program. To the
extent an Award under the Plan is paid out in cash rather than Shares, such cash payment will not result in reducing the number of Shares available for issuance under the Plan. Shares used to pay the exercise price of an Award or withheld to satisfy
the tax withholding obligations related to an Award will become available for future grant or sale under the Plan. For the avoidance of doubt, Shares that otherwise become available for grant and issuance because of the provisions of this
Section 2.2 shall not include Shares subject to Awards that initially became available because of the substitution clause in Section 21.2 hereof. 
 2.3. Minimum Share Reserve. At all times the Company shall reserve and keep available a sufficient number of Shares as shall be required to satisfy the requirements of all outstanding Awards
granted under this Plan. 
 2.4. Automatic Share Reserve Increase. The number of Shares available for grant and
issuance under the Plan shall be increased on January 1 of each of the first ten (10) calendar years during the term of the Plan (2014 through 2023), by the lesser of (i) five percent (5%) of the number of Shares issued and
outstanding on each December 31 immediately prior to the date of increase or (ii) such number of Shares determined by the Board. 

  
 1 

 2.5. Limitations. No more than twenty-one million (21,000,000) Shares
shall be issued pursuant to the exercise of ISOs. 
 2.6. Adjustment of Shares. If the number of outstanding
Shares is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or similar change in the capital structure of the Company, without consideration, then (a) the number of
Shares reserved for issuance and future grant under the Plan set forth in Section 2.1, including shares reserved under sub-clauses (i)-(v) of Section 2.1, (b) the Exercise Prices of and number of Shares subject to outstanding
Options and SARs, (c) the number of Shares subject to other outstanding Awards, (d) the maximum number of shares that may be issued as ISOs set forth in Section 2.5, and (e) the maximum number of Shares that may be issued to an
individual or to a new Employee in any one calendar year set forth in Section 3 shall be proportionately adjusted, subject to any required action by the Board or the stockholders of the Company and in compliance with applicable securities laws;
provided that fractions of a Share will not be issued. 
 3. ELIGIBILITY. ISOs may be granted only to Employees. All other Awards
may be granted to Employees, Consultants, Directors and Non-Employee Directors of the Company or any Parent or Subsidiary of the Company; provided such Consultants, Directors and Non-Employee Directors render bona fide services not in
connection with the offer and sale of securities in a capital-raising transaction. No Participant will be eligible to receive more than one million (1,000,000) Shares in any calendar year under this Plan pursuant to the grant of Awards except
that new Employees of the Company or of a Parent or Subsidiary of the Company (including new Employees who are also officers and directors of the Company or any Parent or Subsidiary of the Company) are eligible to receive up to a maximum of two
million (2,000,000) Shares in the calendar year in which they commence their employment. 
 4.
ADMINISTRATION. 
 4.1. Committee Composition; Authority. This Plan will be
administered by the Committee or by the Board acting as the Committee. Subject to the general purposes, terms and conditions of this Plan, and to the direction of the Board, the Committee will have full power to implement and carry out this Plan,
except, however, the Board shall establish the terms for the grant of an Award to Non-Employee Directors. The Committee will have the authority to: 
 (a) construe and interpret this Plan, any Award Agreement and any other agreement or document executed pursuant to this Plan; 

(b) prescribe, amend and rescind rules and regulations relating to this Plan or any Award; 

(c) select persons to receive Awards; 
 (d) determine the form and terms and conditions, not inconsistent with the terms of the Plan, of any Award granted hereunder. Such terms and conditions include, but are not limited to, the exercise
price, the time or times when Awards may vest and be exercised (which may be based on performance criteria) or settled, any vesting acceleration or waiver of forfeiture restrictions, and any restriction or limitation regarding any Award or the
Shares relating thereto, based in each case on such factors as the Committee will determine; 
 (e) determine the number
of Shares or other consideration subject to Awards; 
 (f) determine the Fair Market Value and interpret the applicable
provisions of this Plan and the definition of Fair Market Value in connection with circumstances that impact the Fair Market Value, if necessary; 

  
 2 

 (g) determine whether Awards will be granted singly, in combination with, in tandem
with, in replacement of, or as alternatives to, other Awards under this Plan or any other incentive or compensation plan of the Company or any Parent or Subsidiary of the Company; 

(h) grant waivers of Plan or Award conditions; 
 (i) determine the vesting, exercisability and payment of Awards; 
 (j)
correct any defect, supply any omission or reconcile any inconsistency in this Plan, any Award or any Award Agreement; 

(k) determine whether an Award has been earned; 
 (l) determine the terms and conditions of any, and to institute any Exchange Program; 
 (m) reduce or waive any criteria with respect to Performance Factors; 

(n) adjust Performance Factors to take into account changes in law and accounting or tax rules as the Committee deems necessary or
appropriate to reflect the impact of extraordinary or unusual items, events or circumstances to avoid windfalls or hardships provided that such adjustments are consistent with the regulations promulgated under Section 162(m) of the Code with
respect to persons whose compensation is subject to Section 162(m) of the Code; 
 (o) adopt terms and conditions,
rules and/or procedures (including the adoption of any subplan under this Plan) relating to the operation and administration of the Plan to accommodate requirements of local law and procedures outside of the United States; 

(p) make all other determinations necessary or advisable for the administration of this Plan; and 

(q) delegate any of the foregoing to a subcommittee consisting of one or more executive officers pursuant to a specific delegation
as permitted by applicable law, including Section 157(c) of the Delaware General Corporation Law. 
 4.2.
Committee Interpretation and Discretion. Any determination made by the Committee with respect to any Award shall be made in its sole discretion at the time of grant of the Award or, unless in contravention of any express term of the
Plan or Award, at any later time, and such determination shall be final and binding on the Company and all persons having an interest in any Award under the Plan. Any dispute regarding the interpretation of the Plan or any Award Agreement shall be
submitted by the Participant or Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and the Participant. The Committee may delegate to one or more executive officers the
authority to review and resolve disputes with respect to Awards held by Participants who are not Insiders, and such resolution shall be final and binding on the Company and the Participant. 

4.3. Section 162(m) of the Code and Section 16 of the Exchange Act. When necessary or desirable for an Award to
qualify as “performance-based compensation” under Section 162(m) of the Code the Committee shall include at least two persons who are “outside directors” (as defined under Section 162(m) of the Code) and at least two
(or a majority if more than two then serve on the Committee) such “outside directors” shall approve the grant of such Award and timely determine (as applicable) the Performance Period and any Performance Factors upon which vesting or
settlement of any portion of such Award is to be subject. When required by Section 162(m) of the Code, prior to settlement of any such Award at least two (or a majority if more than two then serve on the Committee) such “outside
directors” then serving on the Committee shall determine and certify in writing the extent to 

  
 3 

 
which such Performance Factors have been timely achieved and the extent to which the Shares subject to such Award have thereby been earned. Awards granted to Participants who are subject to
Section 16 of the Exchange Act must be approved by two or more “non-employee directors” (as defined in the regulations promulgated under Section 16 of the Exchange Act). With respect to Participants whose compensation is subject
to Section 162(m) of the Code, and provided that such adjustments are consistent with the regulations promulgated under Section 162(m) of the Code, the Committee may adjust the performance goals to account for changes in law and accounting
and to make such adjustments as the Committee deems necessary or appropriate to reflect the impact of extraordinary or unusual items, events or circumstances to avoid windfalls or hardships, including without limitation (i) restructurings,
discontinued operations, extraordinary items, and other unusual or non-recurring charges, (ii) an event either not directly related to the operations of the Company or not within the reasonable control of the Company’s management, or
(iii) a change in accounting standards required by generally accepted accounting principles. 
 4.4.
Documentation. The Award Agreement for a given Award, the Plan and any other documents may be delivered to, and accepted by, a Participant or any other person in any manner (including electronic distribution or posting) that meets
applicable legal requirements. 
 4.5. Foreign Award Recipients. Notwithstanding any provision of the Plan to the
contrary, in order to comply with the laws in other countries in which the Company and its Subsidiaries operate or have employees or other individuals eligible for Awards, the Committee, in its sole discretion, shall have the power and authority to:
(i) determine which Subsidiaries shall be covered by the Plan; (ii) determine which individuals outside the United States are eligible to participate in the Plan; (iii) modify the terms and conditions of any Award granted to
individuals outside the United States; (iv) establish subplans and modify exercise procedures and other terms and procedures, to the extent the Committee determines such actions to be necessary or advisable (and such subplans and/or
modifications shall be attached to this Plan as appendices); provided, however, that no such subplans and/or modifications shall increase the share limitations contained in Section 2.1 hereof; and (v) take any action, before or after an
Award is made, that the Committee determines to be necessary or advisable to obtain approval or comply with any local governmental regulatory exemptions or approvals. Notwithstanding the foregoing, the Committee may not take any actions hereunder,
and no Awards shall be granted, that would violate the Exchange Act or any other applicable United States securities law, the Code, or any other applicable United States governing statute or law. 

5. OPTIONS. An Option is the right but not the obligation to purchase a Share, subject to certain conditions, if applicable. The Committee
may grant Options to eligible Employees, Consultants and Directors of the Company or any Parent or Subsidiary of the Company and will determine whether such Options will be Incentive Stock Options within the meaning of the Code
(“ISOs”) or Nonqualified Stock Options (“NSOs”), the number of Shares subject to the Option, the Exercise Price of the Option, the period during which the Option may vest and be exercised, and all other terms and
conditions of the Option, subject to the following: 
 5.1. Option Grant. Each Option granted under this Plan will
identify the Option as an ISO or an NSO. An Option may be, but need not be, awarded upon satisfaction of such Performance Factors during any Performance Period as are set out in advance in the Participant’s individual Award Agreement. If the
Option is being earned upon the satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting date of any Performance Period for each Option; and (y) select from among the Performance Factors
to be used to measure the performance, if any. Performance Periods may overlap and Participants may participate simultaneously with respect to Options that are subject to different performance goals and other criteria. 

5.2. Date of Grant. The date of grant of an Option will be the date on which the Committee makes the determination to grant
such Option, or a specified future date. The Award Agreement will be delivered to the Participant within a reasonable time after the granting of the Option. 

  
 4 

 5.3. Exercise Period. Options may be vested and exercisable within the times
or upon the conditions as set forth in the Award Agreement governing such Option; provided, however, that no Option will be exercisable after the expiration of ten (10) years from the date the Option is granted; and provided
further that no ISO granted to a person who, at the time the ISO is granted, directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any Parent or
Subsidiary of the Company (“Ten Percent Stockholder”) will be exercisable after the expiration of five (5) years from the date the ISO is granted. The Committee also may provide for Options to become exercisable at one time or from
time to time, periodically or otherwise, in such number of Shares or percentage of Shares as the Committee determines. 

5.4. Exercise Price. The Exercise Price of an Option will be determined by the Committee when the Option is granted;
provided that: (i) the Exercise Price of an Option will be not less than one hundred percent (100%) of the Fair Market Value of the Shares on the date of grant and (ii) the Exercise Price of any ISO granted to a Ten Percent
Stockholder will not be less than one hundred ten percent (110%) of the Fair Market Value of the Shares on the date of grant. Payment for the Shares purchased may be made in accordance with Section 11 and the Award Agreement and in
accordance with any procedures established by the Company. 
 5.5. Method of Exercise. Any Option granted
hereunder will be vested and exercisable according to the terms of the Plan and at such times and under such conditions as determined by the Committee and set forth in the Award Agreement. An Option may not be exercised for a fraction of a Share. An
Option will be deemed exercised when the Company receives: (i) notice of exercise (in such form as the Committee may specify from time to time) from the person entitled to exercise the Option, and (ii) full payment for the Shares with
respect to which the Option is exercised (together with applicable withholding taxes). Full payment may consist of any consideration and method of payment authorized by the Committee and permitted by the Award Agreement and the Plan. Shares issued
upon exercise of an Option will be issued in the name of the Participant. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or
receive dividends or any other rights as a stockholder will exist with respect to the Shares, notwithstanding the exercise of the Option. The Company will issue (or cause to be issued) such Shares promptly after the Option is exercised. No
adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued, except as provided in Section 2.6 of the Plan. Exercising an Option in any manner will decrease the number of Shares
thereafter available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised. 
 (a) Termination of Service. If the Participant’s Service terminates for any reason except for Cause or the Participant’s death or Disability, then the Participant may exercise such
Participant’s Options only to the extent that such Options would have been exercisable by the Participant on the date Participant’s Service terminates no later than three (3) months after the date Participant’s Service terminates
(or such shorter or longer time period as may be determined by the Committee, with any exercise beyond three (3) months after the date Participant’s Service terminates deemed to be the exercise of an NSO), but in any event no later than
the expiration date of the Options. 
 (b) Death. If the Participant’s Service terminates because of the
Participant’s death (or the Participant dies within three (3) months after Participant’s Service terminates other than for Cause or because of the Participant’s Disability), then the Participant’s Options may be exercised
only to the extent that such Options would have been exercisable by the Participant on the date Participant’s Service terminates and must be exercised by the Participant’s legal representative, or authorized assignee, no later than twelve
(12) months after the date Participant’s Service terminates (or such shorter time period not less than six (6) months or longer time period-as may be determined by the Committee), but in any event no later than the expiration date of
the Options. 

  
 5 

 (c) Disability. If the Participant’s Service terminates because of the
Participant’s Disability, then the Participant’s Options may be exercised only to the extent that such Options would have been exercisable by the Participant on the date Participant’s Service terminates and must be exercised by the
Participant (or the Participant’s legal representative or authorized assignee) no later than twelve (12) months after the date Participant’s Service terminates (with any exercise beyond (a) three (3) months after the date
Participant’s Service terminates when the termination of Service is for a Disability that is not a “permanent and total disability” as defined in Section 22(e)(3) of the Code, or (b) twelve (12) months after the date
Participant’s Service terminates when the termination of Service is for a Disability that is a “permanent and total disability” as defined in Section 22(e)(3) of the Code, deemed to be exercise of an NSO), but in any event no
later than the expiration date of the Options. 
 (d) Cause. If the Participant is terminated for Cause, then
Participant’s Options shall expire on such Participant’s date of termination of Service, or at such later time and on such conditions as are determined by the Committee, but in any no event later than the expiration date of the Options.
Unless otherwise provided in the Award Agreement, Cause shall have the meaning set forth in the Plan. 
 5.6.
Limitations on Exercise. The Committee may specify a minimum number of Shares that may be purchased on any exercise of an Option, provided that such minimum number will not prevent any Participant from exercising the Option for the full
number of Shares for which it is then exercisable. 
 5.7. Limitations on ISOs. With respect to Awards granted as
ISOs, to the extent that the aggregate Fair Market Value of the Shares with respect to which such ISOs are exercisable for the first time by the Participant during any calendar year (under all plans of the Company and any Parent or Subsidiary)
exceeds one hundred thousand dollars ($100,000), such Options will be treated as NSOs. For purposes of this Section 5.7, ISOs will be taken into account in the order in which they were granted. The Fair Market Value of the Shares will be
determined as of the time the Option with respect to such Shares is granted. In the event that the Code or the regulations promulgated thereunder are amended after the Effective Date to provide for a different limit on the Fair Market Value of
Shares permitted to be subject to ISOs, such different limit will be automatically incorporated herein and will apply to any Options granted after the effective date of such amendment. 

5.8. Modification, Extension or Renewal. The Committee may modify, extend or renew outstanding Options and authorize the
grant of new Options in substitution therefor, provided that any such action may not, without the written consent of a Participant, impair any of such Participant’s rights under any Option previously granted. Any outstanding ISO that is
modified, extended, renewed or otherwise altered will be treated in accordance with Section 424(h) of the Code. Subject to Section 18 of this Plan, by written notice to affected Participants, the Committee may reduce the Exercise Price of
outstanding Options without the consent of such Participants; provided, however, that the Exercise Price may not be reduced below the Fair Market Value on the date the action is taken to reduce the Exercise Price. 

5.9. No Disqualification. Notwithstanding any other provision in this Plan, no term of this Plan relating to ISOs will be
interpreted, amended or altered, nor will any discretion or authority granted under this Plan be exercised, so as to disqualify this Plan under Section 422 of the Code or, without the consent of the Participant affected, to disqualify any ISO
under Section 422 of the Code. 
 6. RESTRICTED STOCK AWARDS. A Restricted Stock Award is an offer by the Company to sell to
an eligible Employee, Consultant, or Director of the Company or any Parent or Subsidiary of the Company Shares that are subject to restrictions (“Restricted Stock”). The Committee will determine to whom an offer will be made, the
number of Shares the Participant may purchase, the Purchase Price, the restrictions under which the Shares will be subject and all other terms and conditions of the Restricted Stock Award, subject to the Plan. 

  
 6 

 6.1. Restricted Stock Purchase Agreement. All purchases under a
Restricted Stock Award will be evidenced by an Award Agreement. Except as may otherwise be provided in an Award Agreement, a Participant accepts a Restricted Stock Award by signing and delivering to the Company an Award Agreement with full payment
of the Purchase Price, within thirty (30) days from the date the Award Agreement was delivered to the Participant. If the Participant does not accept such Award within thirty (30) days, then the offer of such Restricted Stock Award will
terminate, unless the Committee determines otherwise. 
 6.2. Purchase Price. The Purchase Price for a
Restricted Stock Award will be determined by the Committee and may be less than Fair Market Value on the date the Restricted Stock Award is granted. Payment of the Purchase Price must be made in accordance with Section 11 of the Plan, and the
Award Agreement and in accordance with any procedures established by the Company. 
 6.3. Terms of Restricted Stock
Awards. Restricted Stock Awards will be subject to such restrictions as the Committee may impose or are required by law. These restrictions may be based on completion of a specified number of years of service with the Company or upon completion
of Performance Factors, if any, during any Performance Period as set out in advance in the Participant’s Award Agreement. Prior to the grant of a Restricted Stock Award, the Committee shall: (a) determine the nature, length and starting
date of any Performance Period for the Restricted Stock Award; (b) select from among the Performance Factors to be used to measure performance goals, if any; and (c) determine the number of Shares that may be awarded to the Participant.
Performance Periods may overlap and a Participant may participate simultaneously with respect to Restricted Stock Awards that are subject to different Performance Periods and having different performance goals and other criteria. 

6.4. Termination of Service. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such
date Participant’s Service terminates (unless determined otherwise by the Committee). 
 7. STOCK BONUS AWARDS. A Stock Bonus
Award is an award to an eligible Employee, Consultant, or Director of the Company or any Parent or Subsidiary of the Company of Shares for Services to be rendered or for past Services already rendered to the Company or any Parent or Subsidiary. All
Stock Bonus Awards shall be made pursuant to an Award Agreement. No payment from the Participant will be required for Shares awarded pursuant to a Stock Bonus Award. 
 7.1. Terms of Stock Bonus Awards. The Committee will determine the number of Shares to be awarded to the Participant under a Stock Bonus Award and any restrictions thereon. These
restrictions may be based upon completion of a specified number of years of service with the Company or upon satisfaction of performance goals based on Performance Factors during any Performance Period as set out in advance in the Participant’s
Stock Bonus Agreement. Prior to the grant of any Stock Bonus Award the Committee shall: (a) determine the nature, length and starting date of any Performance Period for the Stock Bonus Award; (b) select from among the Performance Factors
to be used to measure performance goals; and (c) determine the number of Shares that may be awarded to the Participant. Performance Periods may overlap and a Participant may participate simultaneously with respect to Stock Bonus Awards that are
subject to different Performance Periods and different performance goals and other criteria. 
 7.2. Form of Payment
to Participant. Payment may be made in the form of cash, whole Shares, or a combination thereof, based on the Fair Market Value of the Shares earned under a Stock Bonus Award on the date of payment, as determined in the sole discretion of the
Committee. 
 7.3. Termination of Service. Except as may be set forth in the Participant’s Award Agreement,
vesting ceases on such date Participant’s Service terminates (unless determined otherwise by the Committee). 

  
 7 

 8. STOCK APPRECIATION RIGHTS. A Stock Appreciation Right (“SAR”) is
an award to a Participant that may be settled in cash, or Shares (which may consist of Restricted Stock), having a value equal to (a) the difference between the Fair Market Value on the date of exercise over the Exercise Price multiplied by
(b) the number of Shares with respect to which the SAR is being settled (subject to any maximum number of Shares that may be issuable as specified in an Award Agreement). All SARs shall be made pursuant to an Award Agreement. 

8.1. Terms of SARs. The Committee will determine the terms of each SAR including, without limitation: (a) the number
of Shares subject to the SAR; (b) the Exercise Price and the time or times during which the SAR may be settled; (c) the consideration to be distributed on settlement of the SAR; and (d) the effect of the Participant’s termination
of Service on each SAR. The Exercise Price of the SAR will be determined by the Committee when the SAR is granted, and may not be less than Fair Market Value. A SAR may be awarded upon satisfaction of Performance Factors, if any, during any
Performance Period as are set out in advance in the Participant’s individual Award Agreement. If the SAR is being earned upon the satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting
date of any Performance Period for each SAR; and (y) select from among the Performance Factors to be used to measure the performance, if any. Performance Periods may overlap and Participants may participate simultaneously with respect to SARs
that are subject to different Performance Factors and other criteria. 
 8.2. Exercise Period and Expiration Date.
A SAR will be exercisable within the times or upon the occurrence of events determined by the Committee and set forth in the Award Agreement governing such SAR. The SAR Agreement shall set forth the expiration date; provided that no SAR will be
exercisable after the expiration of ten (10) years from the date the SAR is granted. The Committee may also provide for SARs to become exercisable at one time or from time to time, periodically or otherwise (including, without limitation, upon
the attainment during a Performance Period of performance goals based on Performance Factors), in such number of Shares or percentage of the Shares subject to the SAR as the Committee determines. Except as may be set forth in the Participant’s
Award Agreement, vesting ceases on the date Participant’s Service terminates (unless determined otherwise by the Committee). Notwithstanding the foregoing, the rules of Section 5.6 also will apply to SARs. 

8.3. Form of Settlement. Upon exercise of a SAR, a Participant will be entitled to receive payment from the Company in an
amount determined by multiplying (i) the difference between the Fair Market Value of a Share on the date of exercise over the Exercise Price; times (ii) the number of Shares with respect to which the SAR is exercised. At the discretion of
the Committee, the payment from the Company for the SAR exercise may be in cash, in Shares of equivalent value, or in some combination thereof. The portion of a SAR being settled may be paid currently or on a deferred basis with such interest or
dividend equivalent, if any, as the Committee determines, provided that the terms of the SAR and any deferral satisfy the requirements of Section 409A of the Code. 
 8.4. Termination of Service. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such date Participant’s Service terminates (unless determined
otherwise by the Committee). 
 9. RESTRICTED STOCK UNITS. A Restricted Stock Unit (“RSU”) is an award to an
eligible Employee, Consultant, or Director of the Company or any Parent or Subsidiary of the Company covering a number of Shares that may be settled in cash, or by issuance of those Shares (which may consist of Restricted Stock). All RSUs shall be
made pursuant to an Award Agreement. 
 9.1. Terms of RSUs. The Committee will determine the terms of an RSU
including, without limitation: (a) the number of Shares subject to the RSU; (b) the time or times during which the RSU may be settled; (c) the consideration to be distributed on settlement; and (d) the effect of the
Participant’s termination of Service on each RSU. An RSU may be awarded upon satisfaction of such performance goals based on Performance Factors during any Performance Period as are set out in advance in the

  
 8 

 
Participant’s Award Agreement. If the RSU is being earned upon satisfaction of Performance Factors, then the Committee will: (x) determine the nature, length and starting date of any
Performance Period for the RSU; (y) select from among the Performance Factors to be used to measure the performance, if any; and (z) determine the number of Shares deemed subject to the RSU. Performance Periods may overlap and participants
may participate simultaneously with respect to RSUs that are subject to different Performance Periods and different performance goals and other criteria. 
 9.2. Form and Timing of Settlement. Payment of earned RSUs shall be made as soon as practicable after the date(s) determined by the Committee and set forth in the Award Agreement. The
Committee, in its sole discretion, may settle earned RSUs in cash, Shares, or a combination of both. The Committee may also permit a Participant to defer payment under a RSU to a date or dates after the RSU is earned provided that the terms of the
RSU and any deferral satisfy the requirements of Section 409A of the Code. 
 9.3. Termination of Service.
Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such date Participant’s Service terminates (unless determined otherwise by the Committee). 
 10. PERFORMANCE AWARDS. A Performance Award is an award to an eligible Employee, Consultant, or Director of the Company or any Parent or Subsidiary of the Company of a cash bonus or an award
of Performance Shares denominated in Shares that may be settled in cash, or by issuance of those Shares (which may consist of Restricted Stock). Grants of Performance Awards shall be made pursuant to an Award Agreement. 

10.1. Terms of Performance Shares. The Committee will determine, and each Award Agreement shall set forth, the terms of
each Performance Award including, without limitation: (a) the amount of any cash bonus, (b) the number of Shares deemed subject to an award of Performance Shares; (c) the Performance Factors and Performance Period that shall determine
the time and extent to which each award of Performance Shares shall be settled; (d) the consideration to be distributed on settlement, and (e) the effect of the Participant’s termination of Service on each Performance Award. In
establishing Performance Factors and the Performance Period the Committee will: (x) determine the nature, length and starting date of any Performance Period; (y) select from among the Performance Factors to be used; and (z) determine
the number of Shares deemed subject to the award of Performance Shares. Prior to settlement the Committee shall determine the extent to which Performance Awards have been earned. Performance Periods may overlap and Participants may participate
simultaneously with respect to Performance Awards that are subject to different Performance Periods and different performance goals and other criteria. No Participant will be eligible to receive more than $1,000,000 in Performance Awards in any
calendar year under this Plan. 
 10.2. Value, Earning and Timing of Performance Shares. Each Performance Share
will have an initial value equal to the Fair Market Value of a Share on the date of grant. After the applicable Performance Period has ended, the holder of Performance Shares will be entitled to receive a payout of the number of Performance Shares
earned by the Participant over the Performance Period, to be determined as a function of the extent to which the corresponding Performance Factors or other vesting provisions have been achieved. The Committee, in its sole discretion, may pay earned
Performance Shares in the form of cash, in Shares (which have an aggregate Fair Market Value equal to the value of the earned Performance Shares at the close of the applicable Performance Period) or in a combination thereof. 

10.3. Termination of Service. Except as may be set forth in the Participant’s Award Agreement, vesting ceases on such
date Participant’s Service terminates (unless determined otherwise by the Committee). 

  
 9 

 11. PAYMENT FOR SHARE PURCHASES. Payment from a Participant for Shares purchased pursuant to
this Plan may be made in cash or by check or, where expressly approved for the Participant by the Committee and where permitted by law (and to the extent not otherwise set forth in the applicable Award Agreement): 

(a) by cancellation of indebtedness of the Company to the Participant; 

(b) by surrender of shares of the Company held by the Participant that have a Fair Market Value on the date of surrender equal to
the aggregate exercise price of the Shares as to which said Award will be exercised or settled; 
 (c) by waiver of
compensation due or accrued to the Participant for services rendered or to be rendered to the Company or a Parent or Subsidiary of the Company; 
 (d) by consideration received by the Company pursuant to a broker-assisted or other form of cashless exercise program implemented by the Company in connection with the Plan; 

(e) by any combination of the foregoing; or 
 (f) by any other method of payment as is permitted by applicable law. 
 12. GRANTS TO
NON-EMPLOYEE DIRECTORS. Non-Employee Directors are eligible to receive any type of Award offered under this Plan except ISOs. Awards pursuant to this Section 12 may be automatically made pursuant to policy adopted by the Board, or made
from time to time as determined in the discretion of the Board. 
 12.1. Eligibility. Awards pursuant to this
Section 12 shall be granted only to Non-Employee Directors. A Non-Employee Director who is elected or re-elected as a member of the Board will be eligible to receive an Award under this Section 12. 

12.2. Vesting, Exercisability and Settlement. Except as set forth in Section 21, Awards shall vest, become exercisable
and be settled as determined by the Board. With respect to Options and SARs, the exercise price granted to Non-Employee Directors shall not be less than the Fair Market Value of the Shares at the time that such Option or SAR is granted. 

12.3. Election to receive Awards in Lieu of Cash. A Non-Employee Director may elect to receive his or her annual retainer
payments and/or meeting fees from the Company in the form of cash or Awards or a combination thereof, as determined by the Committee. Such Awards shall be issued under the Plan. An election under this Section 12.3 shall be filed with the
Company on the form prescribed by the Company. 
  

	13.	WITHHOLDING TAXES. 

13.1. Withholding Generally. Whenever Shares are to be issued in satisfaction of Awards granted under this Plan, the Company
may require the Participant to remit to the Company, or to the Parent or Subsidiary employing the Participant, an amount sufficient to satisfy applicable U.S. federal, state, local and international withholding tax requirements or any other tax
liability legally due from the Participant prior to the delivery of Shares pursuant to exercise or settlement of any Award. Whenever payments in satisfaction of Awards granted under this Plan are to be made in cash, such payment will be net of an
amount sufficient to satisfy applicable U.S. federal, state, local and international withholding tax requirements or any other tax liability legally due from the Participant. 

13.2. Stock Withholding. The Committee, or its delegate(s), as permitted by applicable law, in its sole discretion and
pursuant to such procedures as it may specify from time to time and to limitations 

  
 10 

 
of local law, may require or permit a Participant to satisfy such tax withholding obligation or any other tax liability legally due from the Participant, in whole or in part by (without
limitation) (i) paying cash, (ii) electing to have the Company withhold otherwise deliverable cash or Shares having a Fair Market Value equal to the minimum statutory amount required to be withheld, or (iii) delivering to the Company
already-owned Shares having a Fair Market Value equal to the minimum amount required to be withheld. The Fair Market Value of the Shares to be withheld or delivered will be determined as of the date that the taxes are required to be withheld.

  

	14.	TRANSFERABILITY. 

14.1. Transfer Generally. Unless determined otherwise by the Committee or pursuant to Section 14.2, an Award may not be
sold, pledged, assigned, hypothecated, transferred, or disposed of in any manner other than by will or by the laws of descent or distribution. If the Committee makes an Award transferable, including, without limitation, by instrument to an inter
vivos or testamentary trust in which the Awards are to be passed to beneficiaries upon the death of the trustor (settlor) or by gift or by domestic relations order to a Permitted Transferee, such Award will contain such additional terms and
conditions as the Committee deems appropriate. All Awards shall be exercisable: (i) during the Participant’s lifetime only by (A) the Participant, or (B) the Participant’s guardian or legal representative; (ii) after
the Participant’s death, by the legal representative of the Participant’s heirs or legatees; and (iii) in the case of all awards except ISOs, by a Permitted Transferee. 

14.2. Award Transfer Program. Notwithstanding any contrary provision of the Plan, the Committee shall have all discretion
and authority to determine and implement the terms and conditions of any Award Transfer Program instituted pursuant to this Section 14.2 and shall have the authority to amend the terms of any Award participating, or otherwise eligible to
participate in, the Award Transfer Program, including (but not limited to) the authority to (i) amend (including to extend) the expiration date, post-termination exercise period and/or forfeiture conditions of any such Award, (ii) amend or
remove any provisions of the Award relating to the Award holder’s continued service to the Company or its Parent or any Subsidiary, (iii) amend the permissible payment methods with respect to the exercise or purchase of any such Award,
(iv) amend the adjustments to be implemented in the event of changes in the capitalization and other similar events with respect to such Award, and (v) make such other changes to the terms of such Award as the Committee deems necessary or
appropriate in its sole discretion. 
  

	15.	PRIVILEGES OF STOCK OWNERSHIP; RESTRICTIONS ON SHARES. 

 15.1. Voting and Dividends. No Participant will have any of the rights of a stockholder with respect to any Shares until the Shares are issued to the Participant, except for any dividend
equivalent rights permitted by an applicable Award Agreement. After Shares are issued to the Participant, the Participant will be a stockholder and have all the rights of a stockholder with respect to such Shares, including the right to vote and
receive all dividends or other distributions made or paid with respect to such Shares; provided, that if such Shares are Restricted Stock, then any new, additional or different securities the Participant may become entitled to receive with
respect to such Shares by virtue of a stock dividend, stock split or any other change in the corporate or capital structure of the Company will be subject to the same restrictions as the Restricted Stock; provided, further, that the
Participant will have no right to retain such stock dividends or stock distributions with respect to Shares that are repurchased at the Participant’s Purchase Price or Exercise Price, as the case may be, pursuant to Section 15.2.

 15.2. Restrictions on Shares. At the discretion of the Committee, the Company may reserve to itself and/or its
assignee(s) a right to repurchase (a “Right of Repurchase”) a portion of any or all Unvested Shares held by a Participant following such Participant’s termination of Service at any time within ninety (90) days (or such longer or
shorter time determined by the Committee) after the later of the date Participant’s Service terminates and the date the Participant purchases Shares under this Plan, for cash and/or cancellation of purchase money indebtedness, at the
Participant’s Purchase Price or Exercise Price, as the case may be. 

  
 11 

 16. CERTIFICATES. All Shares or other securities whether or not certificated, delivered under
this Plan will be subject to such stock transfer orders, legends and other restrictions as the Committee may deem necessary or advisable, including restrictions under any applicable U.S. federal, state or foreign securities law, or any rules,
regulations and other requirements of the SEC or any stock exchange or automated quotation system upon which the Shares may be listed or quoted and any non-U.S. exchange controls or securities law restrictions to which the Shares are subject.

 17. ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a Participant’s Shares, the Committee may require the
Participant to deposit all certificates representing Shares, together with stock powers or other instruments of transfer approved by the Committee, appropriately endorsed in blank, with the Company or an agent designated by the Company to hold in
escrow until such restrictions have lapsed or terminated, and the Committee may cause a legend or legends referencing such restrictions to be placed on the certificates. Any Participant who is permitted to execute a promissory note as partial or
full consideration for the purchase of Shares under this Plan will be required to pledge and deposit with the Company all or part of the Shares so purchased as collateral to secure the payment of the Participant’s obligation to the Company
under the promissory note; provided, however, that the Committee may require or accept other or additional forms of collateral to secure the payment of such obligation and, in any event, the Company will have full recourse against the
Participant under the promissory note notwithstanding any pledge of the Participant’s Shares or other collateral. In connection with any pledge of the Shares, the Participant will be required to execute and deliver a written pledge agreement in
such form as the Committee will from time to time approve. The Shares purchased with the promissory note may be released from the pledge on a pro rata basis as the promissory note is paid. 
 18. REPRICING; EXCHANGE AND BUYOUT OF AWARDS. Without prior stockholder approval, the Committee may (i) reprice Options or SARs (and where such repricing is a reduction in the Exercise
Price of outstanding Options or SARs, the consent of the affected Participants is not required provided written notice is provided to them, notwithstanding any adverse tax consequences to them arising from the repricing), and (ii) with the
consent of the respective Participants (unless not required pursuant to Section 5.8 of the Plan), pay cash or issue new Awards in exchange for the surrender and cancellation of any, or all, outstanding Awards. 

19. SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. An Award will not be effective unless such Award is in compliance with all applicable
U.S. and foreign federal and state securities and exchange control laws, rules and regulations of any governmental body, and the requirements of any stock exchange or automated quotation system upon which the Shares may then be listed or quoted, as
they are in effect on the date of grant of the Award and also on the date of exercise or other issuance. Notwithstanding any other provision in this Plan, the Company will have no obligation to issue or deliver certificates for Shares under this
Plan prior to: (a) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable; and/or (b) completion of any registration or other qualification of such Shares under any state or federal or
foreign law or ruling of any governmental body that the Company determines to be necessary or advisable. The Company will be under no obligation to register the Shares with the SEC or to effect compliance with the registration, qualification or
listing requirements of any foreign or state securities laws, exchange control laws, stock exchange or automated quotation system, and the Company will have no liability for any inability or failure to do so. 

20. NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted under this Plan will confer or be deemed to confer on any
Participant any right to continue in the employ of, or to continue any other relationship with, the Company or any Parent or Subsidiary of the Company or limit in any way the right of the Company or any Parent or Subsidiary of the Company to
terminate Participant’s employment or other relationship at any time. 

  
 12 

	21.	CORPORATE TRANSACTIONS. 

 21.1. Assumption or Replacement of Awards by Successor. In the event of a Corporate Transaction any or all outstanding Awards may be assumed or replaced by the
successor corporation, which assumption or replacement shall be binding on all Participants. In the alternative, the successor corporation may substitute equivalent Awards or provide substantially similar consideration to Participants as was
provided to stockholders (after taking into account the existing provisions of the Awards). The successor corporation may also issue, in place of outstanding Shares of the Company held by the Participant, substantially similar shares or other
property subject to repurchase restrictions no less favorable to the Participant. In the event such successor or acquiring corporation (if any) refuses to assume, convert, replace or substitute Awards, as provided above, pursuant to a Corporate
Transaction, then notwithstanding any other provision in this Plan to the contrary, such Awards shall have their vesting accelerate as to all shares subject to such Award (and any applicable right of repurchase fully lapse) immediately prior to the
Corporate Transaction and then such Awards will terminate. In addition, in the event such successor or acquiring corporation (if any) refuses to assume, convert, replace or substitute Awards, as provided above, pursuant to a Corporate Transaction,
the Committee will notify the Participant in writing or electronically that such Award will be exercisable for a period of time determined by the Committee in its sole discretion, and such Award will terminate upon the expiration of such period.
Awards need not be treated similarly in a Corporate Transaction. 
 21.2. Assumption of Awards by the Company. The
Company, from time to time, also may substitute or assume outstanding awards granted by another company, whether in connection with an acquisition of such other company or otherwise, by either; (a) granting an Award under this Plan in
substitution of such other company’s award; or (b) assuming such award as if it had been granted under this Plan if the terms of such assumed award could be applied to an Award granted under this Plan. Such substitution or assumption will
be permissible if the holder of the substituted or assumed award would have been eligible to be granted an Award under this Plan if the other company had applied the rules of this Plan to such grant. In the event the Company assumes an award granted
by another company, the terms and conditions of such award will remain unchanged (except that the Purchase Price or the Exercise Price, as the case may be, and the number and nature of Shares issuable upon exercise or settlement of any such
Award will be adjusted appropriately pursuant to Section 424(a) of the Code). In the event the Company elects to grant a new Option in substitution rather than assuming an existing option, such new Option may be granted with a similarly
adjusted Exercise Price. Substitute Awards shall not reduce the number of Shares authorized for grant under the Plan or authorized for grant to a Participant in a calendar year. 

21.3. Non-Employee Directors’ Awards. Notwithstanding any provision to the contrary herein, in the event of a
Corporate Transaction, the vesting of all Awards granted to Non-Employee Directors shall accelerate and such Awards shall become exercisable (as applicable) in full prior to the consummation of such event at such times and on such conditions as the
Committee determines. 
 22. ADOPTION AND STOCKHOLDER APPROVAL. This Plan shall be submitted for the approval of the
Company’s stockholders, consistent with applicable laws, within twelve (12) months before or after the date this Plan is adopted by the Board. 
 23. TERM OF PLAN/GOVERNING LAW. Unless earlier terminated as provided herein, this Plan will become effective on the Effective Date and will terminate ten (10) years from the date this
Plan is adopted by the Board. This Plan and all Awards granted hereunder shall be governed by and construed in accordance with the laws of the State of Delaware (excluding its conflict of laws rules). 

24. AMENDMENT OR TERMINATION OF PLAN. The Board may at any time terminate or amend this Plan in any respect, including, without limitation,
amendment of any form of Award Agreement or instrument to be executed pursuant to this Plan; provided, however, that the Board will not, without the approval of the stockholders of the Company, amend this Plan in any manner that
requires 

  
 13 

 
such stockholder approval; provided further, that a Participant’s Award shall be governed by the version of this Plan then in effect at the time such Award was granted. 

25. NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the Board, the submission of this Plan to the stockholders of the
Company for approval, nor any provision of this Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem desirable, including, without limitation, the granting of
stock awards and bonuses otherwise than under this Plan, and such arrangements may be either generally applicable or applicable only in specific cases. 
 26. INSIDER TRADING POLICY. Each Participant who receives an Award shall comply with any policy adopted by the Company from time to time covering transactions in the Company’s
securities by Employees, officers and/or directors of the Company. 
 27. DEFINITIONS. As used in this Plan, and except as
elsewhere defined herein, the following terms will have the following meanings: 
 27.1. “Award”
means any award under the Plan, including any Option, Restricted Stock, Stock Bonus, Stock Appreciation Right, Restricted Stock Unit or award of Performance Shares. 
 27.2. “Award Agreement” means, with respect to each Award, the written or electronic agreement between the Company and the Participant setting forth the terms and conditions
of the Award and country-specific appendix thereto for grants to non-U.S. Participants, which shall be in substantially a form (which need not be the same for each Participant) that the Committee (or in the case of Award agreements that are not used
for Insiders, the Committee’s delegate(s)) has from time to time approved, and will comply with and be subject to the terms and conditions of this Plan. 
 27.3. “Award Transfer Program” means any program instituted by the Committee which would permit Participants the opportunity to transfer any outstanding Awards to a
financial institution or other person or entity approved by the Committee. 
 27.4. “Board” means
the Board of Directors of the Company. 
 27.5. “Cause” means (i) Participant’s willful
failure substantially to perform his or her duties and responsibilities to the Company or deliberate violation of a Company policy; (ii) Participant’s commission of any act of fraud, embezzlement, dishonesty or any other willful misconduct
that has caused or is reasonably expected to result in material injury to the Company; (iii) unauthorized use or disclosure by Participant of any proprietary information or trade secrets of the Company or any other party to whom the Participant
owes an obligation of nondisclosure as a result of his or her relationship with the Company; or (iv) Participant’s willful breach of any of his or her obligations under any written agreement or covenant with the Company. The determination
as to whether a Participant is being terminated for Cause shall be made in good faith by the Company and shall be final and binding on the Participant. The foregoing definition does not in any way limit the Company’s ability to terminate a
Participant’s employment or consulting relationship at any time as provided in Section 20 above, and the term “Company” will be interpreted to include any Subsidiary or Parent, as appropriate. Notwithstanding the foregoing, the
foregoing definition of “Cause” may, in part or in whole, be modified or replaced in each individual employment agreement or Award Agreement with any Participant, provided that such document supersedes the definition provided in this
Section 27.5. 
 27.6. “Code” means the United States Internal Revenue Code of 1986, as
amended, and the regulations promulgated thereunder. 
 27.7. “Committee” means the Compensation
Committee of the Board or those persons to whom administration of the Plan, or part of the Plan, has been delegated as permitted by law. 

  
 14 

 27.8. “Common Stock” means the common stock of the Company.

 27.9. “Company” means Marin Software Incorporated, or any successor corporation. 

27.10. “Consultant” means any person, including an advisor or independent contractor, engaged by the
Company or a Parent or Subsidiary to render services to such entity. 
 27.11. “Corporate
Transaction” means the occurrence of any of the following events: (i) any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act) becomes the “beneficial owner” (as defined in Rule
13d-3 of the Exchange Act), directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the total voting power represented by the Company’s then-outstanding voting securities; provided, however, that
for purposes of this subclause (i) the acquisition of additional securities by any one Person who is considered to own more than fifty percent (50%) of the total voting power of the securities of the Company will not be considered a
Corporate Transaction; (ii) the consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets; (iii) the consummation of a merger or consolidation of the Company with any other corporation,
other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the
surviving entity or its parent) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or its parent outstanding immediately after such merger or consolidation;
(iv) any other transaction which qualifies as a “corporate transaction” under Section 424(a) of the Code wherein the stockholders of the Company give up all of their equity interest in the Company (except for the acquisition,
sale or transfer of all or substantially all of the outstanding shares of the Company) or (v) a change in the effective control of the Company that occurs on the date that a majority of members of the Board is replaced during any twelve
(12) month period by member of the Board whose appointment or election is not endorsed by as majority of the members of the Board prior to the date of the appointment or election. For purpose of this subclause (v), if any Person is considered
to be in effective control of the Company, the acquisition of additional control of the Company by the same Person will not be considered a Corporate Transaction. For purposes of this definition, persons will be considered to be acting as a group if
they are owners of a corporation that enters into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company. Notwithstanding the foregoing, a transaction will not be deemed a Corporate Transaction
unless the transaction qualifies as a change in control event within the meaning of Code Section 409A, as it has been and may be amended from time to time, and any proposed or final Treasury Regulations and IRS guidance that has been
promulgated or may be promulgated thereunder from time to time. 
 27.12. “Director” means
a member of the Board. 
 27.13. “Disability” means in the case of
incentive stock options, total and permanent disability as defined in Section 22(e)(3) of the Code and in the case of other Awards, that the Participant is unable to engage in any substantial gainful activity by reason of any medically
determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than 12 months.  

27.14. “Effective Date” means the day immediately prior to the date of the underwritten initial public
offering of the Company’s Common Stock pursuant to a registration statement that is declared effective by the SEC. 

27.15. “Employee” means any person, including Officers and Directors, providing services as an employee to
the Company or any Parent or Subsidiary of the Company. Neither service as a Director nor payment of a director’s fee by the Company will be sufficient to constitute “employment” by the Company. 

  
 15 

 27.16. “Exchange Act” means the United States Securities
Exchange Act of 1934, as amended. 
 27.17. “Exchange Program” means a program pursuant to which
(i) outstanding Awards are surrendered, cancelled or exchanged for cash, the same type of Award or a different Award (or combination thereof) or (ii) the exercise price of an outstanding Award is increased or reduced. 

27.18. “Exercise Price” means, with respect to an Option, the price at which a holder may purchase the
Shares issuable upon exercise of an Option and with respect to a SAR, the price at which the SAR is granted to the holder thereof. 
 27.19. “Fair Market Value” means, as of any date, the value of a share of the Company’s Common Stock determined as follows: 

(a) if such Common Stock is publicly traded and is then listed on a national securities exchange, its closing price on the date of
determination on the principal national securities exchange on which the Common Stock is listed or admitted to trading as reported in The Wall Street Journal or such other source as the Committee deems reliable; 

(b) if such Common Stock is publicly traded but is neither listed nor admitted to trading on a national securities exchange, the
average of the closing bid and asked prices on the date of determination as reported in The Wall Street Journal or such other source as the Committee deems reliable; 
 (c) in the case of an Option or SAR grant made on the Effective Date, the price per share at which shares of the Company’s Common Stock are initially offered for sale to the public by the
Company’s underwriters in the initial public offering of the Company’s Common Stock pursuant to a registration statement filed with the SEC under the Securities Act; or 

(d) if none of the foregoing is applicable, by the Board or the Committee in good faith. 

27.20. “Insider” means an officer or director of the Company or any other person whose transactions in the
Company’s Common Stock are subject to Section 16 of the Exchange Act. 
 27.21. “IRS”
means the United States Internal Revenue Service. 
 27.22. “Non-Employee Director” means a
Director who is not an Employee of the Company or any Parent or Subsidiary. 
 27.23. “Option”
means an award of an option to purchase Shares pursuant to Section 5. 
 27.24. “Parent”
means any corporation (other than the Company) in an unbroken chain of corporations ending with the Company if each of such corporations other than the Company owns stock possessing fifty percent (50%) or more of the total combined voting power
of all classes of stock in one of the other corporations in such chain. 
 27.25. “Participant”
means a person who holds an Award under this Plan. 
 27.26. “Performance Award”
means cash or stock granted pursuant to Section 10 or Section 12 of the Plan. 
 27.27. “Performance
Factors” means any of the factors selected by the Committee and specified in an Award Agreement, from among the following objective measures, either individually, alternatively or in any combination, applied to the Company as a whole or
any business unit or 

  
 16 

 
Subsidiary, either individually, alternatively, or in any combination, on a GAAP or non-GAAP basis, and measured, to the extent applicable on an absolute basis or relative to a pre-established
target, to determine whether the performance goals established by the Committee with respect to applicable Awards have been satisfied: 
 (a) Profit Before Tax; 
 (b) Billings; 

(c) Revenue; 
 (d) Net revenue; 
 (e) Earnings (which may include earnings before
interest and taxes, earnings before taxes, and net earnings); 
 (f) Operating income; 

(g) Operating margin; 
 (h) Operating profit; 
 (i) Controllable operating profit, or net
operating profit; 
 (j) Net Profit; 
 (k) Gross margin; 
 (l) Operating expenses or operating expenses as
a percentage of revenue; 
 (m) Net income; 
 (n) Earnings per share; 
 (o) Total stockholder return; 

(p) Market share; 
 (q) Return on assets or net assets; 
 (r) The Company’s stock
price; 
 (s) Growth in stockholder value relative to a pre-determined index; 

(t) Return on equity; 
 (u) Return on invested capital; 
 (v) Cash Flow (including free cash
flow or operating cash flows) 
 (w) Cash conversion cycle; 

(x) Economic value added; 

  
 17 

 (y) Individual confidential business objectives; 

(z) Contract awards or backlog; 
 (aa) Overhead or other expense reduction; 
 (bb) Credit rating;

 (cc) Strategic plan development and implementation; 

(dd) Succession plan development and implementation; 
 (ee) Improvement in workforce diversity; 
 (ff) Customer indicators;

 (gg) New product invention or innovation; 
 (hh) Attainment of research and development milestones; 
 (ii)
Improvements in productivity; 
 (jj) Bookings; 

(kk) Attainment of objective operating goals and employee metrics; and 

(ll) Any other metric that is capable of measurement as determined by the Committee. 

The Committee may, in recognition of unusual or non-recurring items such as acquisition-related activities or changes in applicable
accounting rules, provide for one or more equitable adjustments (based on objective standards) to the Performance Factors to preserve the Committee’s original intent regarding the Performance Factors at the time of the initial award grant. It
is within the sole discretion of the Committee to make or not make any such equitable adjustments. 
 27.28.
“Performance Period” means the period of service determined by the Committee, not to exceed five (5) years, during which years of service or performance is to be measured for the Award. 

27.29. “Performance Share” means an Award granted pursuant to Section 10 or Section 12 of the
Plan. 
 27.30. “Permitted Transferee” means any child, stepchild, grandchild, parent,
stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law (including adoptive relationships) of the Employee, any person sharing the
Employee’s household (other than a tenant or employee), a trust in which these persons (or the Employee) have more than 50% of the beneficial interest, a foundation in which these persons (or the Employee) control the management of assets, and
any other entity in which these persons (or the Employee) own more than 50% of the voting interests. 
 27.31.
“Plan” means this Marin Software Incorporated 2013 Equity Incentive Plan. 
 27.32.
“Purchase Price” means the price to be paid for Shares acquired under the Plan, other than Shares acquired upon exercise of an Option or SAR. 

  
 18 

 27.33. “Restricted Stock Award” means an award of
Shares pursuant to Section 6 or Section 12 of the Plan, or issued pursuant to the early exercise of an Option. 

27.34. “Restricted Stock Unit” means an Award granted pursuant to Section 9 or Section 12 of the
Plan. 
 27.35. “SEC” means the United States Securities and Exchange Commission. 

27.36. “Securities Act” means the United States Securities Act of 1933, as amended. 

27.37. “Service” shall mean service as an Employee, Consultant, Director or Non-Employee Director, to the
Company or a Parent or Subsidiary of the Company, subject to such further limitations as may be set forth in the Plan or the applicable Award Agreement. An Employee will not be deemed to have ceased to provide Service in the case of (i) sick
leave, (ii) military leave, or (iii) any other leave of absence approved by the Company; provided, that such leave is for a period of not more than 90 days, unless reemployment upon the expiration of such leave is guaranteed by
contract or statute or unless provided otherwise pursuant to formal policy adopted from time to time by the Company and issued and promulgated to employees in writing. In the case of any Employee on an approved leave of absence, the Committee may
make such provisions respecting suspension of vesting of the Award while on leave from the employ of the Company or a Parent or Subsidiary of the Company as it may deem appropriate, except that in no event may an Award be exercised after the
expiration of the term set forth in the applicable Award Agreement. In the event of military leave, if required by applicable laws, vesting shall continue for the longest period that vesting continues under any other statutory or Company approved
leave of absence and, upon a Participant’s returning from military leave (under conditions that would entitle him or her to protection upon such return under the Uniform Services Employment and Reemployment Rights Act), he or she shall be given
vesting credit with respect to Awards to the same extent as would have applied had the Participant continued to provide services to the Company throughout the leave on the same terms as he or she was providing services immediately prior to such
leave. Except as set forth in this Section 27.37, an employee shall have terminated employment as of the date he or she ceases to provide services (regardless of whether the termination is in breach of local employment laws or is later found to
be invalid) and employment shall not be extended by any notice period or garden leave mandated by local law, provided however, that a change in status from an employee to a consultant or advisor shall not terminate the service provider’s
Service, unless determined by the Committee, in its discretion. The Committee will have sole discretion to determine whether a Participant has ceased to provide Services and the effective date on which the Participant ceased to provide Services.

 27.38. “Shares” means shares of the Company’s Common Stock and the common stock of any
successor security. 
 27.39. “Stock Appreciation Right” means an Award granted pursuant to
Section 8 or Section 12 of the Plan. 
 27.40. “Stock Bonus” means an Award
granted pursuant to Section 7 or Section 12 of the Plan. 
 27.41. “Subsidiary” means
any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company if each of the corporations other than the last corporation in the unbroken chain owns stock possessing fifty percent (50%) or more of the
total combined voting power of all classes of stock in one of the other corporations in such chain. 
 27.42.
“Treasury Regulations” means regulations promulgated by the United States Treasury Department. 

27.43. “Unvested Shares” means Shares that have not yet vested or are subject to a right of repurchase in
favor of the Company (or any successor thereto). 

  
 19 

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 NOTICE OF STOCK OPTION GRANT 
 Unless otherwise defined herein, the terms defined in the
Marin Software Incorporated (the “Company”) 2013 Equity Incentive Plan (the “Plan”) shall have the same meanings in this Notice of Stock Option Grant (the “Notice”) and the Stock
Option Agreement (the “Option Agreement”). 
  

					
	Name:	 	  
	 	
			
	Address:	 	  
	 	

 You have been granted an Option to purchase shares of Common Stock of the Company under the Plan subject to the terms and
conditions of the Plan, this Notice and the Option Agreement. 
  

					
	Grant Number:	  	  
	  	
			
	Date of Grant:	  	  
	  	
			
	Vesting Commencement Date:	  	  
	  	
			
	Exercise price per Share:	  	  
	  	
			
	Total Number of Shares:	  	  
	  	
			
	Type of Option:	  	             Non-Qualified Stock Option	  	
			
		  	             Incentive Stock Option	  	
			
	Expiration Date:	  	                 , 20    ; This Option expires earlier if
your Service terminates earlier, as described in the Stock Option Agreement.	  	
			
	Vesting Schedule:	  	This Option becomes exercisable with respect to the first     % of the shares subject to this Option when you complete
             months of continuous Service from the Vesting Commencement Date. Thereafter, this Option becomes exercisable with respect to an additional
    % of the shares subject to this Option when you complete each month of Service thereafter.	  	

 By accepting this Option, you and the Company agree that this Option is granted under and governed by the terms and
conditions of the Plan, the Notice and the Option Agreement. By accepting this Option, you consent to electronic delivery as set forth in the Option Agreement. 
  

					
		 	MARIN SOFTWARE INCORPORATED
			
		 	 By:
	 	  

			
		 	 Its:
	 	  

			
		 	 Date:
	 	  

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 STOCK OPTION AGREEMENT 
 You have been granted an Option by Marin Software
Incorporated (the “Company”) under the 2013 Equity Incentive Plan (the “Plan”) to purchase Shares (the “Option”), subject to the terms and conditions of the Plan, the Notice of
Stock Option Grant (the “Notice”) and this Stock Option Agreement (the “Agreement”). 
 1. Grant of Option. You have been granted an Option for the number of Shares set forth in the Notice at the exercise price per Share set forth in the Notice (the “exercise
price”). In the event of a conflict between the terms and conditions of the Plan and the terms and conditions of this Agreement, the terms and conditions of the Plan shall prevail. If designated in the Notice as an Incentive Stock
Option (“ISO”), this Option is intended to qualify as an Incentive Stock Option under Section 422 of the Code. However, if this Option is intended to be an ISO, to the extent that it exceeds the $100,000 rule of Code
Section 422(d) it shall be treated as a Nonqualified Stock Option (“NSO”). 
 2. Termination
Period. 
 (a) General Rule. If your Service terminates for any reason except death or Disability, then this
Option will expire at the close of business at Company headquarters on the date three months after your termination date. The Company determines when your Service terminates for this purpose. 

(b) Death; Disability. If you die before your Service terminates, then this Option will expire at the close of business at Company
headquarters on the date 12 months after the date of death. If your Service terminates because of your Disability, then this Option will expire at the close of business at Company headquarters on the date 12 months after your termination date.

 (c) You are responsible for keeping track of these exercise periods following your termination of Service for any reason. The
Company will not provide further notice of such periods. In no event shall this Option be exercised later than the Expiration Date set forth in the Notice. 
 3. Exercise of Option. 
 (a) Right to Exercise. This Option is
exercisable during its term in accordance with the Vesting Schedule set forth in the Notice and the applicable provisions of the Plan and this Agreement. In the event of your death, Disability, or other cessation of Service, the exercisability of
the Option is governed by the applicable provisions of the Plan, the Notice and this Agreement. This Option may not be exercised for a fraction of a Share. 
 (b) Method of Exercise. This Option is exercisable by delivery of an exercise notice in a form specified by the Company (the “Exercise Notice”), which shall state the
election to exercise the Option, the number of Shares in respect of which the Option is being exercised (the “Exercised Shares”), and such other representations and agreements as may be required by the Company pursuant to the
provisions of the Plan. The Exercise Notice shall be delivered in person, by mail, via electronic mail or facsimile or by other authorized method to the Secretary of the Company or other person designated by the Company. The Exercise Notice shall be
accompanied by payment of the aggregate exercise price as to all Exercised Shares. This Option shall be deemed to be exercised upon receipt by the Company of a fully executed Exercise Notice accompanied by the aggregate exercise price and any
applicable tax withholding due upon exercise of the Option. 
 (c) Exercise by Another. If another person wants to
exercise this Option after it has been transferred to him or her, that person must prove to the Company’s satisfaction that he or she is 

  
 1 

 
entitled to exercise this Option. That person must also complete the proper Exercise Notice form (as described above) and pay the exercise price (as described below) and any applicable tax
withholding due upon exercise of the Option (as described below). 
 4. Method of Payment. Payment of the
aggregate exercise price shall be by any of the following, or a combination thereof, at the election of you: 
 (a) your
personal check, wire transfer, or a cashier’s check; 
 (b) certificates for shares of Company stock that you own, along
with any forms needed to effect a transfer of those shares to the Company; the value of the shares, determined as of the effective date of the Option exercise, will be applied to the Option exercise price. Instead of surrendering shares of Company
stock, you may attest to the ownership of those shares on a form provided by the Company and have the same number of shares subtracted from the Option shares issued to you. However, you may not surrender, or attest to the ownership of, shares of
Company stock in payment of the exercise price of your Option if your action would cause the Company to recognize compensation expense (or additional compensation expense) with respect to this Option for financial reporting purposes; 

(c) cashless exercise through irrevocable directions to a securities broker approved by the Company to sell all or part of the Shares
covered by this Option and to deliver to the Company from the sale proceeds an amount sufficient to pay the Option exercise price and any withholding taxes. The balance of the sale proceeds, if any, will be delivered to you. The directions must be
given by signing a special notice of exercise form provided by the Company; or 
 (d) other method authorized by the Company.

 5. Non-Transferability of Option. In general, except as provided below, only you may exercise this Option prior
to your death. You may not transfer or assign this Option, except as provided below. For instance, you may not sell this Option or use it as security for a loan. If you attempt to do any of these things, this Option will immediately become invalid.
You may, however, dispose of this Option in your will or in a beneficiary designation. However, if this Option is designated as a NSO in the Notice, then the Committee (as defined in the Plan) may, in its sole discretion, allow you to transfer this
Option as a gift to one or more family members. For purposes of this Agreement, “family member” means a child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in- law,
father-in-law, son-in-law, daughter-in-law, brother-in-law or sister-in-law (including adoptive relationships), any individual sharing your household (other than a tenant or employee), a trust in which one or more of these individuals have more than
50% of the beneficial interest, a foundation in which you or one or more of these persons control the management of assets, and any entity in which you or one or more of these persons own more than 50% of the voting interest. In addition, if this
Option is designated as a NSO in the Notice, then the Committee may, in its sole discretion, allow you to transfer this Option to your spouse or former spouse pursuant to a domestic relations order in settlement of marital property rights. The
Committee will allow you to transfer this Option only if both you and the transferee(s) execute the forms prescribed by the Committee, which include the consent of the transferee(s) to be bound by this Agreement. This Option may not be transferred
in any manner other than by will or by the laws of descent or distribution or court order and may be exercised during the lifetime of you only by you, your guardian, or legal representative, as permitted in the Plan. The terms of the Plan and this
Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of you. 
 6. Term of
Option. This Option shall in any event expire on the expiration date set forth in the Notice, which date is 10 years after the grant date (five years after the grant date if this Option is designated as an ISO in the Notice and
Section 5.3 of the Plan applies). 

  
 2 

 7. Tax Consequences. You should consult a tax advisor for tax consequences
relating to this Option in the jurisdiction in which you are subject to tax. YOU SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES. 
 (a) Exercising the Option. You will not be allowed to exercise this Option unless you make arrangements acceptable to the Company to pay any withholding taxes that may be due as a result of the
Option exercise. 
 (b) Notice of Disqualifying Disposition of ISO Shares. If you sell or otherwise dispose of any of the
Shares acquired pursuant to an ISO on or before the later of (i) two years after the grant date, or (ii) one year after the exercise date, you shall immediately notify the Company in writing of such disposition. You agree that he or she
may be subject to income tax withholding by the Company on the compensation income recognized from such early disposition of ISO Shares by payment in cash or out of the current compensation paid to you. 

8. Withholding Taxes and Stock Withholding. Regardless of any action the Company or your actual employer (the
“Employer”) takes with respect to any or all income tax, social insurance, payroll tax, payment on account or other tax-related withholding (“Tax-Related Items”), you acknowledge that the ultimate
liability for all Tax-Related Items legally due by you is and remains your responsibility and that the Company and/or the Employer (1) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with
any aspect of the Option grant, including the grant, vesting or exercise of the Option, the subsequent sale of Shares acquired pursuant to such exercise and the receipt of any dividends; and (2) do not commit to structure the terms of the grant
or any aspect of the Option to reduce or eliminate your liability for Tax-Related Items. 
 Prior to exercise of the Option, you shall pay or
make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all withholding and payment on account obligations of the Company and/or the Employer. In this regard, you authorize the Company and/or the Employer to withhold
all applicable Tax-Related Items legally payable by you from your wages or other cash compensation paid to you by the Company and/or the Employer. With the Company’s consent, these arrangements may also include, if permissible under local law,
(a) withholding Shares that otherwise would be issued to you when you exercise this Option, provided that the Company only withholds the amount of Shares necessary to satisfy the minimum statutory withholding amount, (b) having the Company
withhold taxes from the proceeds of the sale of the Shares, either through a voluntary sale or through a mandatory sale arranged by the Company (on your behalf pursuant to this authorization), or (c) any other arrangement approved by the
Company. The Fair Market Value of these Shares, determined as of the effective date of the Option exercise, will be applied as a credit against the withholding taxes. Finally, you shall pay to the Company or the Employer any amount of Tax-Related
Items that the Company or the Employer may be required to withhold as a result of your participation in the Plan or your purchase of Shares that cannot be satisfied by the means previously described. The Company may refuse to honor the exercise and
refuse to deliver the Shares if you fail to comply with your obligations in connection with the Tax-Related Items as described in this Section. 
 9. Acknowledgement. The Company and you agree that the Option is granted under and governed by the Notice, this Agreement and by the provisions of the Plan (incorporated herein by
reference). you: (i) acknowledge receipt of a copy of the Plan prospectus, (ii) represent that you have carefully read and is familiar with their provisions, and (iii) hereby accept the Option subject to all of the terms and
conditions set forth herein and those set forth in the Plan and the Notice. You hereby agree to accept as binding, conclusive and final all decisions or interpretations of the Committee upon any questions relating to the Plan, the Notice and the
Agreement. 
 10. Consent to Electronic Delivery of All Plan Documents and Disclosures. By your acceptance of this
Option, you consent to the electronic delivery of the Notice, this Agreement, the Plan, account statements, Plan prospectuses required by the Securities and Exchange Commission, U.S. 

  
 3 

 
financial reports of the Company, and all other documents that the Company is required to deliver to its security holders (including, without limitation, annual reports and proxy statements) or
other communications or information related to the Option. Electronic delivery may include the delivery of a link to a Company intranet or the internet site of a third party involved in administering the Plan, the delivery of the document via e-mail
or such other delivery determined at the Company’s discretion. You acknowledge that you may receive from the Company a paper copy of any documents delivered electronically at no cost if you contact the Company by telephone, through a postal
service or electronic mail at [insert e-mail address]. You further acknowledge that you will be provided with a paper copy of any documents delivered electronically if electronic delivery fails; similarly, you understand that you must provide on
request to the Company or any designated third party a paper copy of any documents delivered electronically if electronic delivery fails. Also, you understand that your consent may be revoked or changed, including any change in the electronic mail
address to which documents are delivered (if you have provided an electronic mail address), at any time by notifying the Company of such revised or revoked consent by telephone, postal service or electronic mail at [insert e-mail address]. Finally,
you understand that you are not required to consent to electronic delivery. 
 11. Compliance with Laws and
Regulations. The Company will not permit anyone to exercise this Option if the issuance of shares at that time would violate any law or regulation, including without limitation all applicable state, federal and foreign laws and regulations
and all applicable requirements of any stock exchange or automated quotation system on which the Company’s Common Stock may be listed or quoted at the time of such issuance. 

12. Governing Law; Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable
law, the parties agree to renegotiate such provision in good faith. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be excluded from this Agreement,
(ii) the balance of this Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of this Agreement shall be enforceable in accordance with its terms. This Agreement and all acts and transactions pursuant
hereto and the rights and obligations of the parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of Delaware, without giving effect to principles of conflicts of law. 

13. No Rights as Employee, Director or Consultant. Nothing in this Agreement shall affect in any manner whatsoever the
right or power of the Company, or a Parent or Subsidiary of the Company, to terminate your Service, for any reason, with or without cause. 
 14. Adjustment. In the event of a stock split, a stock dividend or a similar change in Company stock, the number of Shares covered by this Option and the exercise price per Share may be
adjusted pursuant to the Plan. 
 15. Lock-Up Agreement. In connection with the initial public offering of the
Company’s securities and upon request of the Company or the underwriters managing any underwritten offering of the Company’s securities, you hereby agree not to sell, make any short sale of, loan, grant any Option for the purchase of, or
otherwise dispose of any securities of the Company however and whenever acquired (other than those included in the registration) without the prior written consent of the Company or such underwriters, as the case may be, for such period of time (not
to exceed one hundred eighty (180) days) from the effective date of such registration as may be requested by the Company or such managing underwriters and to execute an agreement reflecting the foregoing as may be requested by the underwriters
at the time of the public offering; provided however that, if during the last seventeen (17) days of the restricted period the Company issues an earnings release or material news or a material event relating to the Company occurs, or prior to
the expiration of the restricted period the Company announces that it will release earnings results during the sixteen (16)-day period beginning on the last day of the restricted period, then, upon the request of the managing underwriter, to the
extent required by any FINRA rules, the restrictions imposed by this Section shall continue to apply until the end of the third trading day following the expiration of the fifteen (15)-day period beginning on the issuance of the

  
 4 

 
earnings release or the occurrence of the material news or material event. In no event will the restricted period extend beyond two hundred sixteen (216) days after the effective date of the
registration statement. 
 This Agreement and the Plan constitute the entire understanding between you and the Company regarding
this Option. Any prior agreements, commitments or negotiations concerning this Option are superseded. This Agreement may be amended only by another written agreement between the parties. 

BY ACCEPTING THIS OPTION, YOU AGREE TO ALL OF THE TERMS AND CONDITIONS DESCRIBED ABOVE AND IN THE PLAN. 

  
 5 

 MARIN SOFTWARE INCORPORATED 2013
EQUITY INCENTIVE PLAN 
 NOTICE OF
EXERCISE 
 You must sign this Notice on Page 2 before submitting it to the Company.

 OPTIONEE INFORMATION: 

 

									
	Name:	 	  
	  		  	Social Security Number:	 	  

					
	Address:	 	  
	  		  	Employee Number:	 	  

					
		 	  
	  		  		 	

 OPTION INFORMATION: 

 

			
	 Date of Grant:                  ,
20    
	  	Type of Stock Option:
		
	 Option Price per Share: $             
	  	 ̈ Non-qualified (NSO)
		
	 Total number of shares of Common Stock of Marin Software Incorporated

(the “Company”) covered by the option: 
                     
	  	 ̈ Incentive (ISO)

 EXERCISE INFORMATION: 
 Number of shares of Common Stock of the Company for which the option is being exercised now: 

                    . (These shares are
referred to below as the “Purchased Shares.”) 
 Total Option Price for the Purchased Shares:
$         
 Form of payment enclosed [check all that apply]: 

 

	 ̈	Check for $            , payable to “Marin Software Incorporated” 

 

	 ̈	Broker assisted cashless exercise. [Requires broker form.] 

  

	 ̈	Certificate(s) for                  shares of Common Stock of the Company. These
shares will be valued as of the effective date of this exercise. 

  

	 ̈	Attestation Form covering                  shares of Common Stock of the Company.
These shares will be valued as of the date this notice is received by the Company. 

 Name(s) in which the Purchased Shares should
be registered : 
  

	 ̈	In my name only 

  

			
	  ̈    In the names of my spouse and myself as community
 property
	  	                My spouse’s name (if 
applicable):

			
	  ̈    In the names of my spouse and myself as community
 property with the right of survivorship
	  	                             
                                   
		
	  ̈    In the names of my spouse and myself as joint tenants
with  the right of survivorship
	  	
		
	  ̈    In the name of an
eligible revocable trust 
         [requires Stock
Transfer Agreement]
	  	Full legal name of revocable trust:
		
		  	                             
                                   
		
		  	                             
                                   
		
		  	                             
                                   

  

			
	The certificate for the Purchased Shares should be sent to the following address:	 	                             
                                         
                                  
		 	                             
                                         
                                  
		
		 	                             
                                         
                                  
		
		 	                             
                                         
                                  

 REPRESENTATIONS AND ACKNOWLEDGMENTS OF THE
OPTIONEE: 
  

	1.	I acknowledge that I am acquiring the Purchased Shares subject to all terms of the Notice of Stock Option Grant and Stock Option Agreement. 

 

	2.	I acknowledge that my exercise of the Option is expressly conditioned on my paying or making adequate arrangements satisfactory to the Company and/or the Employer to
satisfy all tax withholding and other obligations of the Company and/or the Employer, as set forth in Section 8 of the Stock Option Agreement. In the case of a Non-qualified option, I understand that I must recognize ordinary income equal to
the spread between the fair market value of the Purchased Shares on the date of exercise and the exercise price. In the case of an incentive stock option, I understand that I may be subject to alternative minimum tax under applicable tax law. I
further understand that I am required to pay withholding taxes at the time of exercising a Non-qualified option. 

  

	3.	I acknowledge that I have received a copy of the Plan Prospectus describing the Company’s 2013 Equity Incentive Plan and the tax consequences of exercise. I
acknowledge that the Company has encouraged me to consult my own adviser to determine the tax consequences of acquiring the Purchased Shares at this time. 

  

	4.	I understand that all sales of Purchased Shares are subject to compliance with the Company’s policy on securities trades. 

 

					
	SIGNATURE:	 		  	DATE:
			
	                             
                   	 		  	                    

  
 2 

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 NOTICE OF RESTRICTED STOCK AWARD 
 GRANT NUMBER:
                     
 Unless
otherwise defined herein, the terms defined in the Marin Software Incorporated 2013 Equity Incentive Plan (the “Plan”) shall have the same meanings in this Notice of Restricted Stock Award (the
“Notice”). 
  

			
	Name:	 	  

		
	Address:	 	  

 You (“you”) have been granted the opportunity to purchase Shares of Common Stock of Marin
Software Incorporated (the “Company”) that are subject to restrictions (the “Restricted Shares”) and the terms and conditions of the Plan, this Notice and the attached Restricted Stock Agreement (the
“Restricted Stock Agreement”). 
  

			
	Total Number of Restricted Shares Awarded:	 	                             
                                         
                              
		
	Fair Market Value per Restricted Share:	 	$                             
                                         
                            
		
	Total Fair Market Value of Award:	 	$                             
                                         
                            
		
	Purchase Price per Restricted Share:	 	$                             
                                         
                            
		
	Total Purchase Price for all Restricted Shares:	 	$                             
                                         
                            
		
	Date of Grant:	 	                             
                                         
                              
		
	Vesting Commencement Date:	 	                             
                                         
                              
		
	Vesting Schedule:	 	Subject to the limitations set forth in this Notice, the Plan and the Restricted Stock Agreement, the Restricted Shares will vest and the right of repurchase shall lapse, in
whole or in part, in accordance with the following schedule: [INSERT VESTING SCHEDULE]

 You understand that your employment or consulting relationship with the Company is at will, for an unspecified duration,
can be terminated at any time, and that nothing in this Notice, the Restricted Stock Agreement or the Plan changes the at-will nature of that relationship. You acknowledge that the vesting of the Restricted Shares pursuant to this Notice is earned
only by continuing Service as an Employee, Director or Consultant of the Company. If the Restricted Stock Agreement is not executed by you within thirty (30) days of the Date of Grant above, then this grant shall be void. 

 

									
	MARIN SOFTWARE INCORPORATED	  		  	RECIPIENT:
					
	 By:
	  	  
	  		  	Signature	  	  

					
	 Its:
	  	  
	  		  	Please Print Name	  	  

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 RESTRICTED STOCK AGREEMENT 
 THIS RESTRICTED STOCK AGREEMENT (this
“Agreement”) is made as of             , 20     by and between Marin Software Incorporated, a Delaware corporation (the
“Company”), and                                 
(“Participant”) pursuant to the Company’s 2013 Equity Incentive Plan (the “Plan”). Unless otherwise defined herein, the terms defined in the Plan shall have the same meanings in this Agreement.

 1. Sale of Stock. Subject to the terms and conditions of this Agreement, on the Purchase Date (as defined
below) the Company will issue and sell to Participant, and Participant agrees to purchase from the Company the number of Shares shown on the Notice of Restricted Stock Award (the “Notice”) at a purchase price of
$         per Share. The per Share purchase price of the Shares shall be not less than the par value of the Shares as of the date of the offer of such Shares to the Participant. The term
“Shares” refers to the purchased Shares and all securities received in replacement of or in connection with the Shares pursuant to stock dividends or splits, all securities received in replacement of the Shares in a recapitalization,
merger, reorganization, exchange or the like, and all new, substituted or additional securities or other properties to which Participant is entitled by reason of Participant’s ownership of the Shares. 

2. Time and Place of Purchase. The purchase and sale of the Shares under this Agreement shall occur at the principal office
of the Company simultaneously with the execution of this Agreement by the parties, or on such other date as the Company and Participant shall agree (the “Purchase Date”). On the Purchase Date, the Company will issue a stock
certificate registered in Participant’s name, or uncertificated shares designated for the Participant in book entry form on the records of the Company’s transfer agent, representing the Shares to be purchased by Participant against payment
of the purchase price therefor by Participant by (a) check made payable to the Company, (b) cancellation of indebtedness of the Company to Participant, (c) Participant’s personal Services that the Committee has determined to have
a value not less than aggregate par value of the Shares to be issued Participant, or (d) a combination of the foregoing. 

3. Restrictions on Resale. By signing this Agreement, Participant agrees not to sell any Shares acquired pursuant to the
Plan and this Agreement at a time when applicable laws, regulations or Company or underwriter trading policies prohibit exercise or sale. This restriction will apply as long as Participant is providing Service to the Company or a Subsidiary of the
Company. 
 3.1 Repurchase Right on Termination Other Than for Cause. For the purposes of this Agreement, a
“Repurchase Event” shall mean an occurrence of one of the following: 
 (i) termination of
Participant’s Service, whether voluntary or involuntary and with or without cause; 
 (ii) resignation, retirement
or death of Participant; or 
 (iii) any attempted transfer by Participant of the Shares, or any interest therein, in
violation of this Agreement. 
 Upon the occurrence of a Repurchase Event, the Company shall have the right (but not an obligation) to purchase
the Shares of Participant at a price equal to the Purchase Price per Share (the “Repurchase 

  
 1 

 
Right”). The Repurchase Right shall lapse in accordance with the vesting schedule set forth in the Notice of Restricted Stock Award. For purposes of this Agreement,
“Unvested Shares” means Stock pursuant to which the Company’s Repurchase Right has not lapsed. 

3.2 Exercise of Repurchase Right. Unless the Company provides written notice to Participant within 90 days from the date of
termination of Participant’s Service to the Company that the Company does not intend to exercise its Repurchase Right with respect to some or all of the Unvested Shares, the Repurchase Right shall be deemed automatically exercised by the
Company as of the 90th day following such termination, provided that the Company may notify Participant that it is exercising its Repurchase Right as of a date prior to such 90th day. Unless Participant is otherwise notified by the Company pursuant
to the preceding sentence that the Company does not intend to exercise its Repurchase Right as to some or all of the Unvested Shares, execution of this Agreement by Participant constitutes written notice to Participant of the Company’s
intention to exercise its Repurchase Right with respect to all Unvested Shares to which such Repurchase Right applies at the time of Participant’s termination of Service. The Company, at its choice, may satisfy its payment obligation to
Participant with respect to exercise of the Repurchase Right by either (A) delivering a check to Participant in the amount of the purchase price for the Unvested Shares being repurchased, or (B) in the event Participant is indebted to the
Company, canceling an amount of such indebtedness equal to the purchase price for the Unvested Shares being repurchased, or (C) by a combination of (A) and (B) so that the combined payment and cancellation of indebtedness equals such
purchase price. In the event of any deemed automatic exercise of the Repurchase Right by canceling an amount of such indebtedness equal to the purchase price for the Unvested Shares being repurchased, such cancellation of indebtedness shall be
deemed automatically to occur as of the 90th day following termination of Participant’s Service unless the Company otherwise satisfies its payment obligations. As a result of any repurchase of Unvested Shares pursuant to the Repurchase Right,
the Company shall become the legal and beneficial owner of the Unvested Shares being repurchased and shall have all rights and interest therein or related thereto, and the Company shall have the right to transfer to its own name the number of
Unvested Shares being repurchased by the Company, without further action by Participant. 
 3.3 Acceptance of
Restrictions. Acceptance of the Shares shall constitute Participant’s agreement to such restrictions and the legending of his or her certificates or the notation in the Company’s direct registration system for stock issuance and
transfer of such restrictions and accompanying legends set forth in Section 4.1 with respect thereto. Notwithstanding such restrictions, however, so long as Participant is the holder of the Shares, or any portion thereof, he or she shall be
entitled to receive all dividends declared on and to vote the Shares and to all other rights of a stockholder with respect thereto. 
 3.4 Non-Transferability of Unvested Shares. In addition to any other limitation on transfer created by applicable securities laws or any other agreement between the Company and Participant,
Participant may not transfer any Unvested Shares, or any interest therein, unless consented to in writing by a duly authorized representative of the Company. Any purported transfer is void and of no effect, and no purported transferee thereof will
be recognized as a holder of the Unvested Shares for any purpose whatsoever. Should such a transfer purport to occur, the Company may refuse to carry out the transfer on its books, set aside the transfer, or exercise any other legal or equitable
remedy. In the event the Company consents to a transfer of Unvested Shares, all transferees of Shares or any interest therein will receive and hold such Shares or interest subject to the provisions of this Agreement, including, insofar as
applicable, the Repurchase Right. In the event of any purchase by the Company hereunder where the Shares or interest are held by a transferee, the transferee shall be obligated, if requested by the Company, to transfer the Shares or interest to the
Participant for consideration equal to the amount to be paid by the Company hereunder. In the event the Repurchase Right is deemed exercised by the Company, the Company may deem any transferee to have transferred the Shares or interest to
Participant 

  
 2 

 
prior to their purchase by the Company, and payment of the purchase price by the Company to such transferee shall be deemed to satisfy Participant’s obligation to pay such transferee for
such Shares or interest, and also to satisfy the Company’s obligation to pay Participant for such Shares or interest. 

3.5 Assignment. The Repurchase Right may be assigned by the Company in whole or in part to any persons or organization.

 4. Restrictive Legends and Stop Transfer Orders. 

4.1 Legends. The certificate or certificates or book entry or book entries representing the Shares shall bear or be noted by
the Company’s transfer agent with the following legend (as well as any legends required by applicable state and federal corporate and securities laws): 
 THE SHARES REPRESENTED HEREBY MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE STOCKHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY.

 4.2 Stop-Transfer Notices. Participant agrees that, in order to ensure compliance with the restrictions
referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect in its own
records. 
 4.3 Refusal to Transfer. The Company shall not be required (i) to transfer on its books any
Shares that have been sold or otherwise transferred in violation of any of the provisions of this Agreement or (ii) to treat as the owner or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares
shall have been so transferred. 
 5. No Rights as Employee, Director or Consultant. Nothing
in this Agreement shall affect in any manner whatsoever the right or power of the Company, or a Parent or Subsidiary of the Company, to terminate Participant’s Service, for any reason, with or without cause. 

6. Miscellaneous. 
 6.1 Acknowledgement. The Company and Participant agree that the Restricted Shares are granted under and governed by the Notice, this Agreement and by the provisions of the Plan (incorporated
herein by reference). Participant: (i) acknowledges receipt of a copy of the Plan prospectus, (ii) represents that Participant has carefully read and is familiar with their provisions, and (iii) hereby accepts the Restricted Shares
subject to all of the terms and conditions set forth herein and those set forth in the Plan and the Notice. 
 6.2
Entire Agreement; Enforcement of Rights. This Agreement, the Plan and the Notice constitute the entire agreement and understanding of the parties relating to the subject matter herein and supersede all prior discussions between them. Any
prior agreements, commitments or negotiations concerning the purchase of the Shares hereunder are superseded. No modification of or amendment to this Agreement, nor any waiver of any rights under this Agreement, shall be effective unless in writing
and signed by the parties to this Agreement. The failure by either party to enforce any rights under this Agreement shall not be construed as a waiver of any rights of such party. 

  
 3 

 6.3 Compliance with Laws and Regulations. The issuance of Shares will be
subject to and conditioned upon compliance by the Company and Participant with all applicable state and federal laws and regulations and with all applicable requirements of any stock exchange or automated quotation system on which the Company’s
Common Stock may be listed or quoted at the time of such issuance or transfer. 
 6.4 Governing Law; Severability.
If one or more provisions of this Agreement are held to be unenforceable under applicable law, the parties agree to renegotiate such provision in good faith. In the event that the parties cannot reach a mutually agreeable and enforceable replacement
for such provision, then (i) such provision shall be excluded from this Agreement, (ii) the balance of this Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of this Agreement shall be
enforceable in accordance with its terms. This Agreement and all acts and transactions pursuant hereto and the rights and obligations of the parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of
California, without giving effect to principles of conflicts of law. 
 6.5 Construction. This Agreement is the
result of negotiations between and has been reviewed by each of the parties hereto and their respective counsel, if any; accordingly, this Agreement shall be deemed to be the product of all of the parties hereto, and no ambiguity shall be construed
in favor of or against any one of the parties hereto. 
 6.6 Notices. Any notice to be given under the terms of
the Plan shall be addressed to the Company in care of its principal office, and any notice to be given to the Participant shall be addressed to such Participant at the address maintained by the Company for such person or at such other address as the
Participant may specify in writing to the Company. 
 6.7 Counterparts. This Agreement may be executed in two or
more counterparts, each of which shall he deemed an original and all of which together shall constitute one instrument. 

6.8 U.S. Tax Consequences. Unless an Election (defined below) is made, in which case, the tax mechanics under
Section 8 apply, upon vesting of Shares, Participant will include in taxable income the difference between the fair market value of the vesting Shares, as determined on the date of their vesting, and the price paid for the Shares. This will be
treated as ordinary income by Participant and will be subject to withholding by the Company when required by applicable law. In the absence of an Election, the Company shall withhold a number of vesting Shares with a fair market value (determined on
the date of their vesting) equal to the minimum amount the Company is required to withhold for income and employment taxes. If Participant makes an Election, then Participant must, prior to making the Election, pay in cash (or check) to the Company
an amount equal to the amount the Company is required to withhold for income and employment taxes. 
 7. Withholding
Taxes. Regardless of any action the Company or your employer (the “Employer”) takes with respect to any or all income tax, social insurance, payroll tax, payment on account or other tax-related withholding
(“Tax-Related Items”), you acknowledge that the ultimate liability for all Tax-Related Items legally due by you is and remains your responsibility and that the Company and/or your Employer (1) make no representations or
undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of the shares received under this award, including the award or vesting of such shares, the subsequent sale of shares under this award and the receipt of any
dividends; and (2) do not commit to structure the terms of the award to reduce or eliminate your liability for Tax-Related Items. 

  
 4 

 No stock certificates will be released to you unless you have paid or made adequate arrangements
satisfactory to the Company and/or the Employer to satisfy all withholding and payment on account obligations of the Company and/or your Employer. In this regard, you authorize the Company and/or your Employer to withhold all applicable Tax-Related
Items legally payable by you from your wages or other cash compensation paid to you by the Company and/or your Employer. With the Company’s consent, these arrangements may also include, if permissible under local law, (a) withholding
shares that otherwise would be delivered to you when they vest having a Fair Market Value equal to the amount necessary to satisfy the minimum statutory withholding amount, (b) having the Company withhold taxes from the proceeds of the sale of
the Shares, either through a voluntary sale or through a mandatory sale arranged by the Company (on your behalf pursuant to this authorization), or (c) any other arrangement approved by the Company. The Fair Market Value of these shares,
determined as of the date when taxes otherwise would have been withheld in cash, will be applied as a credit against the withholding taxes. Finally, you shall pay to the Company or your Employer any amount of Tax-Related Items that the Company or
the Employer may be required to withhold as a result of your participation in the Plan or your acquisition of shares that cannot be satisfied by the means previously described. The Company may refuse to deliver the shares if you fail to comply with
your obligations in connection with the Tax-Related Items as described in this section. 
 8. Section 83(b)
Election. Participant hereby acknowledges that he or she has been informed that, with respect to the purchase of the Shares, an election may be filed by the Participant with the Internal Revenue Service, within 30 days of the purchase of the
Shares, electing pursuant to Section 83(b) of the Code to be taxed currently on any difference between the purchase price of the Shares and their Fair Market Value on the date of purchase (the “Election”). Making the
Election will result in recognition of taxable income to the Participant on the date of purchase, measured by the excess, if any, of the Fair Market Value of the Shares over the purchase price for the Shares. Absent such an Election, taxable income
will be measured and recognized by Participant at the time or times on which the Company’s Repurchase Right lapses. Participant is strongly encouraged to seek the advice of his or her own tax consultants in connection with the purchase of the
Shares and the advisability of filing of the Election. PARTICIPANT ACKNOWLEDGES THAT IT IS SOLELY PARTICIPANT’S RESPONSIBILITY, AND NOT THE COMPANY’S RESPONSIBILITY, TO TIMELY FILE THE ELECTION UNDER SECTION 83(b) OF THE CODE, EVEN IF
PARTICIPANT REQUESTS THE COMPANY, OR ITS REPRESENTATIVE, TO MAKE THIS FILING ON PARTICIPANT’S BEHALF. 
 The parties have
executed this Agreement as of the date first set forth above. 
  

	
	MARIN SOFTWARE INCORPORATED
	
	 By:
                                         
                           

	
	 Its:
                                         
                           

	
	RECIPIENT:
	
	 Signature
                                         
               

	
	Please Print Name                        
                

  
 5 

 STOCK POWER AND ASSIGNMENT 

SEPARATE FROM STOCK CERTIFICATE 
 FOR VALUE RECEIVED and pursuant to that certain Restricted Stock Agreement dated as of             ,
        , [COMPLETE AT THE TIME OF PURCHASE] (the “Agreement”), the undersigned Participant hereby sells, assigns and transfers unto
                            ,
             shares of the Common Stock of Marin Software Incorporated, a Delaware corporation (the “Company”), standing in the undersigned’s name on the
books of the Company represented hereby by book entry or by Certificate No(s).              [COMPLETE AT THE TIME OF PURCHASE] delivered herewith, and
does hereby irrevocably constitute and appoint the Secretary of the Company as the undersigned’s attorney-in-fact, with full power of substitution, to transfer said stock on the books of the Company. THIS ASSIGNMENT MAY ONLY BE USED AS
AUTHORIZED BY THE AGREEMENT AND ANY EXHIBITS THERETO. 
 Dated:             ,
         
  

	
	PARTICIPANT
	
	  

	(Signature)
	
	  

	(Please Print Name)

 Instructions to Participant: Please do not fill in any blanks other than the signature line. The
purpose of this document is to enable the Company and/or its assignee(s) to acquire the shares upon exercise of its “Repurchase Right” set forth in the Agreement without requiring additional action by the Participant. 

  
 1 

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 NOTICE OF RESTRICTED STOCK UNIT AWARD 
 GRANT NUMBER:
                         
 Unless otherwise defined herein, the terms defined in the Marin Software Incorporated (the “Company”) 2013 Equity Incentive Plan (the “Plan”) shall have the
same meanings in this Notice of Restricted Stock Unit Award (the “Notice”) and the attached Award Agreement (Restricted Stock Unit Agreement) (hereinafter “RSU Agreement”). 

 

							
		 	Name:	 	  
	 	
				
		 	Address:	 	  
	 	

 You (“you”) have been granted an award of Restricted Stock Units (“RSUs”)
under the Plan subject to the terms and conditions of the Plan, this Notice and the attached RSU Agreement. 
  

					
		 	Number of RSUs:	  	                             
                       
			
		 	Date of Grant:	  	                             
                       
			
		 	Vesting Commencement Date:	  	                             
                       
			
		 	Expiration Date:	  	The date on which settlement of all RSUs granted hereunder occurs. This RSU expires earlier if your Service terminates earlier, as described in the RSU
Agreement.
			
		 	Vesting Schedule:	  	Subject to the limitations set forth in this Notice, the Plan and the RSU Agreement, 25% of the total number of RSUs will vest on the 12 month anniversary of the Vesting
Commencement Date and 3/48th of the total number of RSUs will vest on the same day of each third month thereafter so long as your Service continues. [INSERT DESIRED VESTING SCHEDULE]

 You acknowledge that the vesting of the RSUs pursuant to this Notice is earned only by continuing Service as an Employee,
Director or Consultant of the Company. By accepting this RSU, you consent to electronic delivery as set forth in the RSU Agreement. 
  

									
	PARTICIPANT	 		 	MARIN SOFTWARE INCORPORATED
					
	Signature:	 	  
	 		 	By:	 	  

					
	Print Name:	 	  
	 		 	Its:	 	  

 MARIN SOFTWARE INCORPORATED 

2013 EQUITY INCENTIVE PLAN 
 RESTRICTED STOCK UNIT AGREEMENT 
 You have been granted Restricted Stock Units
(“RSUs”) subject to the terms, restrictions and conditions of the Plan, the Notice of Restricted Stock Unit Award (the “Notice”) and this Agreement. 

1. Settlement. Settlement of RSUs shall be made within 30 days following the applicable date of vesting under the vesting schedule set
forth in the Notice. Settlement of RSUs shall be in Shares. Settlement means the delivery of the Shares vested under an RSU. No fractional RSUs or rights for fractional Shares shall be created pursuant to this Agreement. 

2. No Stockholder Rights. Unless and until such time as Shares are issued in settlement of vested RSUs, you shall have no ownership of the
Shares allocated to the RSUs and shall have no right dividends or to vote such Shares. 
 3. Dividend Equivalents. Dividends, if
any (whether in cash or Shares), shall not be credited to you. 
 4. No Transfer. The RSUs and any interest therein shall not be
sold, assigned, transferred, pledged, hypothecated, or otherwise disposed of. 
 5. Termination. If your Service terminates for
any reason, all unvested RSUs shall be forfeited to the Company forthwith, and all rights you have to such RSUs shall immediately terminate. In case of any dispute as to whether your termination of Service has occurred, the Committee shall have sole
discretion to determine whether such termination has occurred and the effective date of such termination. 
 6. Tax Consequences.
You acknowledge that there will be tax consequences upon settlement of the RSUs or disposition of the Shares, if any, received in connection therewith, and you should consult a tax adviser regarding your tax obligations prior to such settlement or
disposition in the jurisdiction where you are subject to tax. 
 7. Withholding Taxes and Stock Withholding. Regardless of any
action the Company or your actual employer (the “Employer”) takes with respect to any or all income tax, social insurance, payroll tax, payment on account or other tax-related withholding (“Tax-Related
Items”), you acknowledge that the ultimate liability for all Tax-Related Items legally due by you is and remains your responsibility and that the Company and/or the Employer (1) make no representations or undertakings regarding the
treatment of any Tax-Related Items in connection with any aspect of the award, including the settlement of the RSUs, the subsequent sale of Shares acquired pursuant to such settlement and the receipt of any dividends; and (2) do not commit to
structure the terms of the award or any aspect of the RSUs to reduce or eliminate your liability for Tax-Related Items. You acknowledge that if you are subject to Tax-Related Items in more than one jurisdiction, the Company and/or the Employer may
be required to withhold or account for Tax-Related Items in more than one jurisdiction. 
 Prior to the settlement of your RSUs, you shall pay
or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all withholding and payment on account obligations of the Company and/or the Employer. In this regard, you authorize the Company and/or the Employer to withhold
all applicable Tax-Related Items legally payable by you from your wages or other cash compensation paid to you by the Company and/or the Employer. With the Company’s consent, these arrangements may also include, if permissible under local law,
(a) withholding Shares that otherwise would be issued to you when your RSUs are settled, provided that the Company only withholds the amount of Shares necessary to satisfy the minimum statutory withholding amount, (b) having the Company
withhold taxes from the proceeds of the sale of the Shares, either through a voluntary sale or through a mandatory sale arranged by the Company (on your behalf and you hereby authorize such sales by this authorization), or (c) any other
arrangement approved by the Company; provided however, that if you are a Section 16 officer of the Company under the Exchange Act, then the Committee (as constituted 

  
 1 

 
in accordance with Rule 16b-3 under the Exchange Act) shall establish the method of withholding from alternatives (a)-(c) above, and the Committee shall establish the method prior to the
Tax-Related Items withholding event. The Fair Market Value of these Shares, determined as of the effective date when taxes otherwise would have been withheld in cash, will be applied as a credit against the withholding taxes. You shall pay to the
Company or the Employer any amount of Tax-Related Items that the Company or the Employer may be required to withhold as a result of your participation in the Plan or your purchase of Shares that cannot be satisfied by the means previously described.
Finally, you acknowledge that the Company has no obligation to deliver Shares to you until you have satisfied the obligations in connection with the Tax-Related Items as described in this Section. 

8. Acknowledgement. The Company and you agree that the RSUs are granted under and governed by the Notice, this Agreement and the provisions
of the Plan. You: (i) acknowledge receipt of a copy of the Plan prospectus, (ii) represent that you have carefully read and are familiar with their provisions, and (iii) hereby accept the RSUs subject to all of the terms and
conditions set forth herein and those set forth in the Notice. 
 9. Entire Agreement; Enforcement of Rights. This Agreement, the
Plan and the Notice constitute the entire agreement and understanding of the parties relating to the subject matter herein and supersede all prior discussions between them. Any prior agreements, commitments or negotiations concerning the purchase of
the Shares hereunder are superseded. No modification of or amendment to this Agreement, nor any waiver of any rights under this Agreement, shall be effective unless in writing and signed by the parties to this Agreement. The failure by either party
to enforce any rights under this Agreement shall not be construed as a waiver of any rights of such party. 
 10.
Compliance with Laws and Regulations. The issuance of Shares will be subject to and conditioned upon compliance by the Company and you with all applicable state, federal and foreign laws and regulations and with all
applicable requirements of any stock exchange or automated quotation system on which the Company’s Common Stock may be listed or quoted at the time of such issuance or transfer. 
 11. Governing Law; Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable law, the parties agree to renegotiate such provision in
good faith. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be excluded from this Agreement, (ii) the balance of this Agreement shall be
interpreted as if such provision were so excluded and (iii) the balance of this Agreement shall be enforceable in accordance with its terms. This Agreement and all acts and transactions pursuant hereto and the rights and obligations of the
parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of Delaware, without giving effect to principles of conflicts of law. 
 11. No Rights as Employee, Director or Consultant. Nothing in this Agreement shall affect in any manner whatsoever the right or power of the Company, or a Parent or Subsidiary of the
Company, to terminate your Service, for any reason, with or without cause. 
 12. Consent to Electronic Delivery of All Plan Documents and
Disclosures. By acceptance of this RSU, you consent to the electronic delivery of the Notice, this RSU Agreement, the Plan, account statements, Plan prospectuses required by the Securities and Exchange Commission, U.S. financial reports of
the Company, and all other documents that the Company is required to deliver to its security holders (including, without limitation, annual reports and proxy statements) or other communications or information related to the RSU. Electronic delivery
may include the delivery of a link to a Company intranet or the internet site of a third party involved in administering the Plan, the delivery of the document via e-mail or such other delivery determined at the Company’s discretion. You
acknowledge that you may receive from the Company a paper copy of any documents delivered electronically at no cost if you contact the Company by telephone, through a postal service or electronic mail at equity@marinsoftware.com. You further
acknowledge that you will be provided with a paper copy of any documents delivered electronically if electronic delivery fails; similarly, you understand that you must provide on request to the Company or any designated third party a paper copy of
any documents 

  
 2 

 
delivered electronically if electronic delivery fails. Also, you understand that your consent may be revoked or changed, including any change in the electronic mail address to which documents are
delivered (if you have provided an electronic mail address), at any time by notifying the Company of such revised or revoked consent by telephone, postal service or electronic mail at equity@marinsoftware.com. Finally, you understand that you are
not required to consent to electronic delivery. 
 13. Code Section 409A. For purposes of this Agreement, a termination of
employment will be determined consistent with the rules relating to a “separation from service” as defined in Section 409A of the Internal Revenue Code and the regulations thereunder (“Section 409A”). Notwithstanding
anything else provided herein, to the extent any payments provided under this Agreement in connection with your termination of employment constitute deferred compensation subject to Section 409A, and you are deemed at the time of such
termination of employment to be a “specified employee” under Section 409A, then such payment shall not be made or commence until the earlier of (i) the expiration of the six-month period measured from your separation from service
from the Company or (ii) the date of your death following such a separation from service; provided, however, that such deferral shall only be effected to the extent required to avoid adverse tax treatment to you including, without limitation,
the additional tax for which you would otherwise be liable under Section 409A(a)(1)(B) in the absence of such a deferral. To the extent any payment under this Agreement may be classified as a “short-term deferral” within the meaning
of Section 409A, such payment shall be deemed a short-term deferral, even if it may also qualify for an exemption from Section 409A under another provision of Section 409A. Payments pursuant to this section are intended to constitute
separate payments for purposes of Section 1.409A-2(b)(2) of the Treasury Regulations. 
 BY ACCEPTING THIS RSU, YOU AGREE
TO ALL OF THE TERMS AND CONDITIONS DESCRIBED ABOVE AND IN THE PLAN. 

  
 3EX-10.4

 Exhibit 10.4 
 MARIN SOFTWARE INCORPORATED. 

2013 EMPLOYEE STOCK PURCHASE PLAN 

1. PURPOSE. Marin Software Incorporated adopted the Plan effective as of the date of the IPO. The purpose of this Plan is to
provide eligible employees of the Company and the Participating Corporations with a means of acquiring an equity interest in the Company through payroll deductions, to enhance such employees’ sense of participation in the affairs of the
Company. Capitalized terms not defined elsewhere in the text are defined in Section 28. 
 2. ESTABLISHMENT OF PLAN.
The Company proposes to grant rights to purchase shares of Common Stock to eligible employees of the Company and its Participating Corporations pursuant to this Plan. The Company intends this Plan to qualify as an “employee stock purchase
plan” under Section 423 of the Code (including any amendments to or replacements of such Section), and this Plan shall be so construed. Any term not expressly defined in this Plan but defined for purposes of Section 423 of the Code
shall have the same definition herein. In addition, with regard to offers of options to purchase shares of the Common Stock under the Plan to employees working for a Subsidiary or an Affiliate outside the United States, this Plan authorizes the
grant of options that are not intended to meet Section 423 requirements, provided, if necessary under Section 423 of the Code, the other terms and conditions of the Plan are met. 
 Subject to Section 14, a total of one million (1,000,000) shares of Common Stock is reserved for issuance under this Plan. In addition, on each January 1 for each of the first ten
(10) calendar years after the first Offering Date, the aggregate number of shares of Common Stock reserved for issuance under the Plan shall be increased automatically by the number of shares equal to one (1%) of the total number of
outstanding shares of the Common Stock on the immediately preceding December 31 (rounded down to the nearest whole share), but not to exceed 700,000 shares; provided, that the Board or the Committee may in its sole discretion
reduce the amount of the increase in any particular year. The number of shares reserved for issuance under this Plan and the maximum number of shares that may be issued under this Plan shall be subject to adjustments effected in accordance with
Section 14. 
 3. ADMINISTRATION. The Plan will be administered by the Committee, or by the Committee’s
delegate(s), as permitted by applicable law and provided herein. Subject to the provisions of this Plan and the limitations of Section 423 of the Code or any successor provision in the Code, all questions of interpretation or application of
this Plan shall be determined by the Committee or its delegate(s) and its decisions shall be final and binding upon all Participants. The Committee or its delegate(s) will have full and exclusive discretionary authority to construe, interpret and
apply the terms of the Plan, to determine eligibility, to designate the Participating Corporations, to determine when to grant options which are not intended to meet the Code Section 423 requirements and to decide upon any and all claims filed
under the Plan. Every finding, decision and determination made by the Committee or its delegate(s) will, to the full extent permitted by law, be final and binding upon all parties. Notwithstanding any provision to the contrary in this Plan, the
Committee may adopt rules, sub-plans, and/or procedures relating to the operation and administration of the Plan designed to achieve tax, securities law or other objectives for eligible employees outside of the United States. The Committee will have
the authority to determine the Fair Market Value of the Common Stock (which determination shall be final, binding and conclusive for all purposes) in accordance with Section 8 below and to interpret Section 8 of the Plan in connection with
circumstances that impact the Fair Market Value. Members of the Committee shall receive no compensation for their services in connection with the administration of this Plan, other than standard fees as established from time to time by the Board for
services rendered by Board members serving on Board committees. All expenses incurred in connection with the administration of this Plan shall be paid by the Company. For purposes of this Plan, the Committee may

 designate separate offerings under the Plan (the terms of which need not be identical) in which eligible
employees of one or more Participating Corporations will participate, even if the dates of the applicable Offering Periods of each such offering are identical. 
 4. ELIGIBILITY. 
 (a) Any employee of the Company or the Participating
Corporations is eligible to participate in an Offering Period under this Plan, except that one or more of the following categories of employees may be excluded from coverage under the Plan by the Committee (other than where prohibited by applicable
law): 
 (i) employees who are customarily employed for twenty (20) hours or less per week; 

(ii) employees who are customarily employed for five (5) months or less in a calendar year; and 

(iii) employees who do not meet any other eligibility requirements that the Committee may choose to impose (within the limits permitted
by the Code). 
 The foregoing notwithstanding, an individual shall not be eligible (i) if his or her participation in the
Plan is prohibited by the law of any country that has jurisdiction over him or her, (ii) if complying with the laws of the applicable country would cause the Plan to violate Section 423 of the Code, or (iii) if he or she is subject to
a collective bargaining agreement that does not provide for participation in the Plan. 
 (b) No employee who, together with any
other person whose stock would be attributed to such employee pursuant to Section 424(d) of the Code, owns stock or holds options to purchase stock possessing five percent (5%) or more of the total combined voting power or value of all
classes of stock of the Company or its Parent or any Subsidiary or who, as a result of being granted an option under this Plan with respect to such Offering Period, would own stock or hold options to purchase stock possessing five percent
(5%) or more of the total combined voting power or value of all classes of stock of the Company or its Parent or any Subsidiary shall be granted an option to purchase Common Stock under the Plan. 

5. OFFERING DATES. 
 (a) Each Offering Period of this Plan may be of up to twenty-seven (27) months duration and shall commence and end at the times designated by the Committee. Each Offering Period may consist of one or
more Purchase Periods during which payroll deductions of Participants are accumulated under this Plan. 
 (b) The initial
Offering Period shall run coterminous with the initial Purchase Period and shall commence on the Effective Date, and shall end with the Purchase Date that occurs on or prior to the February 1 or August 1 that first occurs six
(6) months or more after the Effective Date. The initial Offering Period shall consist of a single Purchase Period. Thereafter, a six-month Offering Period shall commence on each February 1 and August 1, with each such Offering Period
also consisting of a single six-month Purchase Period, except as otherwise provided in an applicable sub-plan, or on such other dates as determined by the Committee. The Committee may at any time establish a different duration for an Offering Period
or Purchase Period to be effective after the next scheduled Purchase Date. 

  
 - 2 -

 6. PARTICIPATION IN THIS PLAN. 

(a) Any employee who is an eligible employee determined in accordance with Section 4 immediately prior to the initial Offering Period
will be automatically enrolled in the initial Offering Period under this Plan for the maximum number of shares of Common Stock purchasable. With respect to subsequent Offering Periods, any eligible employee determined in accordance with
Section 4 will be eligible to participate in this Plan, subject to the requirement of Section 6(b) hereof and the other terms and provisions of this Plan. 
 (b) Notwithstanding the foregoing, an eligible employee may elect to decrease the number of shares of Common Stock that such employee would otherwise be permitted to purchase for the initial Offering
Period under the Plan and/or purchase shares of Common Stock for the initial Offering Period through payroll deductions by delivering an enrollment agreement to the Company within thirty (30) days after the filing of an effective registration
statement pursuant to Form S-8. With respect to Offering Periods after the initial Offering Period, a Participant may elect to participate in this Plan by submitting an enrollment agreement prior to the commencement of the Offering Period (or such
earlier date as the Committee may determine) to which such agreement relates. 
 (c) Once an employee becomes a Participant in
an Offering Period, then such Participant will automatically participate in each subsequent Offering Period commencing immediately following the last day of the prior Offering Period unless the Participant withdraws or is deemed to withdraw from
this Plan or terminates further participation in an Offering Period as set forth in Section 11 below. A Participant who is continuing participation pursuant to the preceding sentence is not required to file any additional enrollment agreement
in order to continue participation in this Plan; a Participant who is not continuing participation pursuant to the preceding sentence is required to file an enrollment agreement prior to the commencement of the Offering Period (or such earlier date
as the Committee may determine) to which such agreement relates. 
 7. GRANT OF OPTION ON ENROLLMENT. Becoming a
Participant with respect to an Offering Period will constitute the grant (as of the Offering Date) by the Company to such Participant of an option to purchase on the Purchase Date up to that number of shares of Common Stock of the Company determined
by a fraction, the numerator of which is the amount accumulated in such Participant’s payroll deduction account during such Purchase Period and the denominator of which is the lower of (i) eighty-five percent (85%) of the
Fair Market Value of a share of Common Stock on the Offering Date (but in no event less than the par value of a share of the Common Stock), or (ii) eighty-five percent (85%) of the Fair Market Value of a share of the Common Stock on the
Purchase Date (but in no event less than the par value of a share of the Common Stock) provided, however, that for the Purchase Period within the initial Offering Period the numerator shall be fifteen percent (15%) of the
Participant’s compensation for such Purchase Period, or such lower percentage as determined by the Committee prior to the start of the Offering Period, and provided, further, that the number of shares of Common Stock subject to
any option granted pursuant to this Plan shall not exceed the lesser of (x) the maximum number of shares set by the Committee pursuant to Section 10(b) below with respect to the applicable Purchase Date, or (y) the maximum number of
shares which may be purchased pursuant to Section 10(a) below with respect to the applicable Purchase Date. 
 8.
PURCHASE PRICE. The Purchase Price per share at which a share of Common Stock will be sold in any Offering Period shall be eighty-five percent (85%) of the lesser of: 
 (a) The Fair Market Value on the Offering Date; or 
 (b) The Fair Market Value on
the Purchase Date. 

  
 - 3 -

 9. PAYMENT OF PURCHASE PRICE; PAYROLL DEDUCTION CHANGES; SHARE ISSUANCES. 

(a) The Purchase Price shall be accumulated by regular payroll deductions made during each Offering Period, unless the Committee
determines with respect to categories of Participants outside the United States that contributions may be made in another form due to local legal requirements. The deductions are made as a percentage of the Participant’s compensation in one
percent (1%) increments not less than one percent (1%), nor greater than ten percent (10%) or such lower limit set by the Committee. Compensation shall mean base salary (or in foreign jurisdictions, equivalent cash compensation); however,
the Committee may at any time prior to the beginning of an Offering Period determine that for that and future Offering Periods, Compensation shall mean all W-2 cash compensation, including without limitation base salary or regular hourly wages,
bonuses, incentive compensation, commissions, overtime, shift premiums, plus draws against commissions (or in foreign jurisdictions, equivalent cash compensation). For purposes of determining a Participant’s Compensation, any election by such
Participant to reduce his or her regular cash remuneration under Sections 125 or 401(k) of the Code (or in foreign jurisdictions, equivalent salary deductions) shall be treated as if the Participant did not make such election. Payroll deductions
shall commence on the first payday following the last Purchase Date (with respect to the initial Offering Period, first payday following the effective date of filing with the U.S. Securities and Exchange Commission a securities registration
statement for the Plan) and shall continue to the end of the Offering Period unless sooner altered or terminated as provided in this Plan. Notwithstanding the foregoing, the terms of any sub-plan may permit matching shares without the payment of any
purchase price. 
 (b) A Participant may decrease the rate of payroll deductions during an Offering Period by filing with the
Company a new authorization for payroll deductions, with the new rate to become effective no later than the second payroll period commencing after the Company’s receipt of the authorization and continuing for the remainder of the Offering
Period unless changed as described below. A decrease in the rate of payroll deductions may be made once during an Offering Period or more frequently under rules determined by the Committee. A Participant may increase or decrease the rate of payroll
deductions for any subsequent Offering Period by filing with the Company a new authorization for payroll deductions prior to the beginning of such Offering Period, or such other time period as specified by the Committee. A Participant may not
increase his or her rate of payroll deductions during an Offering Period, for such ongoing Offering Period. 
 (c) A Participant
may reduce his or her payroll deduction percentage to zero during an Offering Period by filing with the Company a request for cessation of payroll deductions. Such reduction shall be effective beginning no later than the second payroll period after
the Company’s receipt of the request and no further payroll deductions will be made for the duration of the Offering Period. Payroll deductions credited to the Participant’s account prior to the effective date of the request shall be used
to purchase shares of Common Stock in accordance with Subsection (e) below. A reduction of the payroll deduction percentage to zero shall be treated as such Participant’s withdrawal from such Offering Period and the Plan, effective as of
the day after the next Purchase Date following the filing date of such request with the Company. 
 (d) All payroll deductions
made for a Participant are credited to his or her account under this Plan and are deposited with the general funds of the Company, except to the extent local legal restrictions outside the United States require segregation of such payroll
deductions. No interest accrues on the payroll deductions, except to the extent required due to local legal requirements. All payroll deductions received or held by the Company may be used by the Company for any corporate purpose, and the Company
shall not be obligated to segregate such payroll deductions, except to the extent necessary to comply with local legal requirements outside the United States. 

  
 - 4 -

 (e) On each Purchase Date, so long as this Plan remains in effect and provided that the
Participant has not submitted a signed and completed withdrawal form before that date which notifies the Company that the Participant wishes to withdraw from that Offering Period under this Plan and have all payroll deductions accumulated in the
account maintained on behalf of the Participant as of that date returned to the Participant, the Company shall apply the funds then in the Participant’s account to the purchase of whole shares of Common Stock reserved under the option granted
to such Participant with respect to the Offering Period to the extent that such option is exercisable on the Purchase Date. The Purchase Price per share shall be as specified in Section 8 of this Plan. Any fractional share, as calculated under
this Subsection (e), shall be rounded down to the next lower whole share, unless the Committee determines with respect to all Participants that any fractional share shall be credited as a fractional share. Any amount remaining in a
Participant’s account on a Purchase Date which is less than the amount necessary to purchase a full share of Common Stock shall be returned to the Participant, without interest (except to the extent required due to local legal requirements
outside the United States). In the event that this Plan has been oversubscribed, all funds not used to purchase shares on the Purchase Date shall be returned to the Participant, without interest (except to the extent required due to local legal
requirements outside the United States). No Common Stock shall be purchased on a Purchase Date on behalf of any employee whose participation in this Plan has terminated prior to such Purchase Date, except to the extent required due to local legal
requirements outside the United States. 
 (f) As promptly as practicable after the Purchase Date, the Company shall issue
shares for the Participant’s benefit representing the shares purchased upon exercise of his or her option. 
 (g) During a
Participant’s lifetime, his or her option to purchase shares hereunder is exercisable only by him or her. The Participant will have no interest or voting right in shares covered by his or her option until such option has been exercised.

 (h) To the extent required by applicable federal, state, local or foreign law, a Participant shall make arrangements
satisfactory to the Company for the satisfaction of any withholding tax obligations that arise in connection with the Plan. The Company or any Subsidiary or Affiliate, as applicable, may withhold, by any method permissible under the applicable law,
the amount necessary for the Company or Subsidiary or Affiliate, as applicable, to meet applicable withholding obligations, including any withholding required to make available to the Company or Subsidiary or Affiliate, as applicable, any tax
deductions or benefits attributable to the sale or early disposition of shares of Common Stock by a Participant. The Company shall not be required to issue any shares of Common Stock under the Plan until such obligations are satisfied. 

10. LIMITATIONS ON SHARES TO BE PURCHASED. 
 (a) Any other provision of the Plan notwithstanding, no Participant shall purchase Common Stock with a Fair Market Value in excess of the following limit: 

(i) In the case of Common Stock purchased during an Offering Period that commenced in the current calendar year, the limit
shall be equal to (A) $25,000 minus (B) the Fair Market Value of the Common Stock that the Participant previously purchased in the current calendar year (under this Plan and all other employee stock purchase plans of the Company or any
parent or Subsidiary of the Company). 
 (ii) In the case of Common Stock purchased during an Offering Period
that commenced in the immediately preceding calendar year, the limit shall be equal to (A) $50,000 minus (B) the Fair Market Value of the Common Stock that the Participant previously purchased (under this Plan and all other employee stock
purchase plans of the Company or any parent or 

  
 - 5 -

 
Subsidiary of the Company) in the current calendar year and in the immediately preceding calendar year. 
 For purposes of this Subsection (a), the Fair Market Value of Common Stock shall be determined in each case as of the beginning of the Offering Period in which such Common Stock is purchased.
Employee stock purchase plans not described in Section 423 of the Code shall be disregarded. If a Participant is precluded by this Subsection (a) from purchasing additional Common Stock under the Plan, then his or her employee
contributions shall automatically be discontinued and shall automatically resume at the beginning of the earliest Purchase Period that will end in the next calendar year (if he or she then is an eligible employee), provided that when the Company
automatically resumes such payroll deductions, the Company must apply the rate in effect immediately prior to such suspension. 

(b) In no event shall a Participant be permitted to purchase more than 2,500 shares on any one Purchase Date or such lesser number as the
Committee shall determine. If a lower limit is set under this Subsection (b), then all Participants will be notified of such limit prior to the commencement of the next Offering Period for which it is to be effective. 

(c) If the number of shares to be purchased on a Purchase Date by all Participants exceeds the number of shares then available for
issuance under this Plan, then the Company will make a pro rata allocation of the remaining shares in as uniform a manner as shall be reasonably practicable and as the Committee shall determine to be equitable. In such event, the Company will give
notice of such reduction of the number of shares to be purchased under a Participant’s option to each Participant affected. 
 (d) Any payroll deductions accumulated in a Participant’s account which are not used to purchase stock due to the limitations in this Section 10, and not covered by Section 9(e), shall be
returned to the Participant as soon as practicable after the end of the applicable Purchase Period, without interest (except to the extent required due to local legal requirements outside the United States). 

11. WITHDRAWAL. 
 (a) Each Participant may withdraw from an Offering Period under this Plan pursuant to a method specified for such purpose by the Company. Such withdrawal may be elected at any time prior to the end of an
Offering Period, or such other time period as specified by the Committee. 
 (b) Upon withdrawal from this Plan, the accumulated
payroll deductions shall be returned to the withdrawn Participant, without interest (except to the extent required due to local legal requirements outside the United States), and his or her interest in this Plan shall terminate. In the event a
Participant voluntarily elects to withdraw from this Plan, he or she may not resume his or her participation in this Plan during the same Offering Period, but he or she may participate in any Offering Period under this Plan which commences on a date
subsequent to such withdrawal by filing a new authorization for payroll deductions in the same manner as set forth in Section 6 above for initial participation in this Plan. 

12. TERMINATION OF EMPLOYMENT. If a Participant ceases to provide services for any reason, including retirement, death,
disability, or the failure of a Participant to remain an eligible employee of the Company or of a Participating Corporation, his or her participation in this Plan will terminate as of the date of such cessation of service. In such event, accumulated
payroll deductions credited to the Participant’s account will be returned to him or her or, in the case of his or her death, to his or her legal representative, without interest (except to the extent required due to local legal requirements
outside the United States). For purposes of this Section 12, an employee will not be deemed to have ceased providing services or failed to remain in the continuous employ of the Company or of a Participating Corporation in the case of sick
leave, military leave, or any other leave of absence approved 

  
 - 6 -

 
by the Company; provided that such leave is for a period of not more than ninety (90) days or reemployment upon the expiration of such leave is guaranteed by contract or statute. The
Company will have sole discretion to determine whether a Participant has terminated employment and the effective date on which the Participant terminated employment, regardless of any notice period or garden leave required under local employment
law. 
 13. RETURN OF PAYROLL DEDUCTIONS. In the event a Participant’s interest in this Plan is terminated by
withdrawal, termination of employment or otherwise, or in the event this Plan is terminated by the Board, the Company shall deliver to the Participant all accumulated payroll deductions credited to such Participant’s account. No interest shall
accrue on the payroll deductions of a Participant in this Plan (except to the extent required due to local legal requirements outside the United States). 
 14. CAPITAL CHANGES. If the number of outstanding shares is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or similar
change in the capital structure of the Company, without consideration, then the Committee shall adjust the number and class of Common Stock that may be delivered under the Plan, the Purchase Price per share and the number of shares of Common Stock
covered by each option under the Plan which has not yet been exercised, and the numerical limits of Sections 2 and 10 shall be proportionately adjusted, subject to any required action by the Board or the stockholders of the Company and in compliance
with the applicable securities laws; provided that fractions of a share will not be issued. 
 15. NONASSIGNABILITY.
Neither payroll deductions credited to a Participant’s account nor any rights with regard to the exercise of an option or to receive shares under this Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by
will, the laws of descent and distribution or as provided in Section 22 below) by the Participant. Any such attempt at assignment, transfer, pledge or other disposition shall be void and without effect. 

16. USE OF PARTICIPANT FUNDS AND REPORTS. The Company may use all payroll deductions received or held by it under the Plan for any
corporate purpose, and the Company will not be required to segregate Participant payroll deductions (except to the extent required due to local legal requirements outside the United States). Until shares are issued, Participants will only have the
rights of an unsecured creditor. Each Participant shall receive promptly after the end of each Purchase Period a report of his or her account setting forth the total payroll deductions accumulated, the number of shares purchased, the per share price
thereof, and the remaining cash balance, if any, refunded, as determined by the Committee. 
 17. NOTICE OF DISPOSITION.
Each U.S. taxpayer Participant shall notify the Company in writing if the Participant disposes of any of the shares purchased in any Offering Period pursuant to this Plan if such disposition occurs within two (2) years from the Offering Date or
within one (1) year from the Purchase Date on which such shares were purchased (the “Notice Period”). The Company may, at any time during the Notice Period, place a legend or legends on any certificate representing shares
acquired pursuant to this Plan requesting the Company’s transfer agent to notify the Company of any transfer of the shares. The obligation of the Participant to provide such notice shall continue notwithstanding the placement of any such legend
on the certificates. 
 18. NO RIGHTS TO CONTINUED EMPLOYMENT. Neither this Plan nor the grant of any option hereunder
shall confer any right on any employee to remain in the employ of the Company or any Participating Corporation, or restrict the right of the Company or any Participating Corporation to terminate such employee’s employment. 

 19. EQUAL RIGHTS AND PRIVILEGES. All eligible employees granted an option under this
Plan that is intended to meet the Code Section 423 requirements shall have equal rights and privileges with respect to this Plan or within any separate offering under the Plan so that this Plan qualifies as an “employee stock purchase
plan” within the meaning of Section 423 or any successor provision of the Code and the related regulations. Any provision of this Plan which is inconsistent with Section 423 or any successor provision of the Code, without further act
or amendment by the Company, the Committee or the Board, shall be reformed to comply with the requirements of Section 423. This Section 19 shall take precedence over all other provisions in this Plan. 

20. NOTICES. All notices or other communications by a Participant to the Company under or in connection with this Plan shall be
deemed to have been duly given when received in the form specified by the Company at the location, or by the person, designated by the Company for the receipt thereof. 
 21. TERM; STOCKHOLDER APPROVAL. This Plan will become effective on the Effective Date. This Plan shall be approved by the stockholders of the Company, in any manner permitted by applicable
corporate law, within twelve (12) months before or after the date this Plan is adopted by the Board. No purchase of shares that are subject to such stockholder approval before becoming available under this Plan shall occur prior to stockholder
approval of such shares and the Board or Committee may delay any Purchase Date and postpone the commencement of any Offering Period subsequent to such Purchase Date as deemed necessary or desirable to obtain such approval (provided that if a
Purchase Date would occur more than twenty-four (24) months after commencement of the Offering Period to which it relates, then such Purchase Date shall not occur and instead such Offering Period shall terminate without the purchase of such
shares and Participants in such Offering Period shall be refunded their contributions without interest). This Plan shall continue until the earlier to occur of (a) termination of this Plan by the Board (which termination may be effected by the
Board at any time pursuant to Section 25 below), (b) issuance of all of the shares of Common Stock reserved for issuance under this Plan, or (c) the tenth anniversary of the Effective Date under the Plan. 

22. DESIGNATION OF BENEFICIARY. 
 (a) Unless otherwise determined by the Committee, a Participant may file a written designation of a beneficiary who is to receive any cash from the Participant’s account under this Plan in the event
of such Participant’s death prior to a Purchase Date. Such form shall be valid only if it was filed with the Company at the prescribed location before the Participant’s death. 

(b) Such designation of beneficiary may be changed by the Participant at any time by written notice filed with the Company at the
prescribed location before the Participant’s death. In the event of the death of a Participant and in the absence of a beneficiary validly designated under this Plan who is living at the time of such Participant’s death, the Company shall
deliver such cash to the executor or administrator of the estate of the Participant, or if no such executor or administrator has been appointed (to the knowledge of the Company), the Company, in its discretion, may deliver such cash to the spouse
or, if no spouse is known to the Company, then to any one or more dependents or relatives of the Participant, or if no spouse, dependent or relative is known to the Company, then to such other person as the Company may designate. 

23. CONDITIONS UPON ISSUANCE OF SHARES; LIMITATION ON SALE OF SHARES. Shares shall not be issued with respect to an option unless
the exercise of such option and the issuance and delivery of such shares pursuant thereto shall comply with all applicable provisions of law, domestic or foreign, including, without limitation, the United States Securities Act of 1933, as amended,
the United States Securities Exchange Act of 1934, as amended, the rules and regulations promulgated 

  
 - 8 -

 
thereunder, and the requirements of any stock exchange or automated quotation system upon which the shares may then be listed, exchange control restrictions and/or securities law restrictions
outside the United States, and shall be further subject to the approval of counsel for the Company with respect to such compliance. Shares may be held in trust or subject to further restrictions as permitted by any subplan. 

24. APPLICABLE LAW. The Plan shall be governed by the substantive laws (excluding the conflict of laws rules) of the State of
Delaware. 
 25. AMENDMENT OR TERMINATION. The Committee, in its sole discretion, may amend, suspend, or terminate the
Plan, or any part thereof, at any time and for any reason. If the Plan is terminated, the Committee, in its discretion, may elect to terminate all outstanding Offering Periods either immediately or upon completion of the purchase of shares of Common
Stock on the next Purchase Date (which may be sooner than originally scheduled, if determined by the Committee in its discretion), or may elect to permit Offering Periods to expire in accordance with their terms (and subject to any adjustment
pursuant to Section 14). If an Offering Period is terminated prior to its previously-scheduled expiration, all amounts then credited to Participants’ accounts for such Offering Period, which have not been used to purchase shares of Common
Stock, shall be returned to those Participants (without interest thereon, except as otherwise required under local laws) as soon as administratively practicable. Further, the Committee will be entitled to change the Purchase Periods and Offering
Periods, limit the frequency and/or number of changes in the amount withheld during an Offering Period, establish the exchange ratio applicable to amounts withheld or contributed in a currency other than U.S. dollars, permit payroll withholding in
excess of the amount designated by a Participant in order to adjust for delays or mistakes in the administration of the Plan, establish reasonable waiting and adjustment periods and/or accounting and crediting procedures to ensure that amounts
applied toward the purchase of Common Stock for each Participant properly correspond with amounts withheld from the Participant’s base salary and other eligible compensation, and establish such other limitations or procedures as the Committee
determines in its sole discretion advisable which are consistent with the Plan. Such actions will not require stockholder approval or the consent of any Participants. However, no amendment shall be made without approval of the stockholders of the
Company (obtained in accordance with Section 21 above) within twelve (12) months of the adoption of such amendment (or earlier if required by Section 21) if such amendment would: (a) increase the number of shares that may be
issued under this Plan; or (b) change the designation of the employees (or class of employees) eligible for participation in this Plan. In addition, in the event the Board or Committee determines that the ongoing operation of the Plan may
result in unfavorable financial accounting consequences, the Board or Committee may, in its discretion and, to the extent necessary or desirable, modify, amend or terminate the Plan to reduce or eliminate such accounting consequences including, but
not limited to: (i) amending the definition of compensation, including with respect to an Offering Period underway at the time; (ii) altering the Purchase Price for any Offering Period including an Offering Period underway at the time of
the change in Purchase Price; (iii) shortening any Offering Period by setting a Purchase Date, including an Offering Period underway at the time of the Committee’s action; (iv) reducing the maximum percentage of compensation a
participant may elect to set aside as payroll deductions; and (v) reducing the maximum number of shares a Participant may purchase during any Offering Period. Such modifications or amendments will not require approval of the stockholders of the
Company or the consent of any Participants. 
 26. CORPORATE TRANSACTIONS. In the event of a Corporate Transaction, the
Offering Period for each outstanding right to purchase Common Stock will be shortened by setting a new Purchase Date and will end on the new Purchase Date. The new Purchase Date shall occur on or prior to the consummation of the Corporate
Transaction, as determined by the Board or Committee, and the Plan shall terminate on the consummation of the Corporate Transaction. 

  
 - 9 -

 27. CODE SECTION 409A ; TAX QUALIFICATION. 

(a) Options granted under the Plan generally are exempt from the application of Section 409A of the Code. However, options granted to
U.S. taxpayers which are not intended to meet the Code Section 423 requirements are intended to be exempt from the application of Section 409A of the Code under the short-term deferral exception and any ambiguities shall be construed and
interpreted in accordance with such intent. Subject to Subsection (b), options granted to U.S. taxpayers outside of the Code Section 423 requirements shall be subject to such terms and conditions that will permit such options to satisfy the
requirements of the short-term deferral exception available under Section 409A of the Code, including the requirement that the shares of Common Stock subject to an option be delivered within the short-term deferral period. Subject to Subsection
(b), in the case of a Participant who would otherwise be subject to Section 409A of the Code, to the extent the Committee determines that an option or the exercise, payment, settlement or deferral thereof is subject to Section 409A of the
Code, the option shall be granted, exercised, paid, settled or deferred in a manner that will comply with Section 409A of the Code, including Treasury regulations and other interpretive guidance issued thereunder, including without limitation
any such regulations or other guidance that may be issued after the Effective Date. Notwithstanding the foregoing, the Company shall have no liability to a Participant or any other party if the option that is intended to be exempt from or compliant
with Section 409A of the Code is not so exempt or compliant or for any action taken by the Committee with respect thereto. 

(b) Although the Company may endeavor to (i) qualify an option for favorable tax treatment under the laws of the United States or
jurisdictions outside of the United States or (ii) avoid adverse tax treatment (e.g., under Section 409A of the Code), the Company makes no representation to that effect and expressly disavows any covenant to maintain favorable or
avoid unfavorable tax treatment, notwithstanding anything to the contrary in this Plan, including Subsection (a). The Company shall be unconstrained in its corporate activities without regard to the potential negative tax impact on Participants
under the Plan. 
 28. DEFINITIONS. 
 (a) “Affiliate” means (i) any entity that, directly or indirectly, is controlled by, controls or is under common control with, the Company and (ii) any entity in which
the Company has a significant equity interest, in either case as determined by the Committee, whether now or hereafter existing. 
 (b) “Board” shall mean the Board of Directors of the Company. 
 (c) “Code” shall mean the Internal Revenue Code of 1986, as amended. 
 (d) “Committee” shall mean the Compensation Committee of the Board that consists exclusively or one or more members of the Board appointed by the Board. 

(e) “Common Stock” shall mean the common stock of the Company. 

(f) “Company” shall mean Marin Software Incorporated. 

(g) “Corporate Transaction” means the occurrence of any of the following events: (i) any “person”
(as such term is used in Sections 13(d) and 14(d) of the Exchange Act) becomes the “beneficial owner” (as defined in Rule 13d-3 of the Exchange Act), directly or indirectly, of securities of the Company representing fifty percent
(50%) or more of the total voting power represented by the 

  
 - 10 -

 
Company’s then outstanding voting securities; or (ii) the consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets; or
(iii) the consummation of a merger or consolidation of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to
represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or its parent) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such
surviving entity or its parent outstanding immediately after such merger or consolidation. 
 (h) “Effective
Date” shall mean the date on which the Registration Statement covering the initial public offering of the shares of Common Stock is declared effective by the U.S. Securities and Exchange Commission. 

(i) “Exchange Act” means the United States Securities Exchange Act of 1934, as amended. 

(j) “Fair Market Value” shall mean, as of any date, the value of a share of Common Stock determined as follows:

 (1) if such Common Stock is then quoted on the Nasdaq Global Select Market, the Nasdaq Global Market or the Nasdaq Capital
Market (collectively, the “Nasdaq Market”), its closing price on the Nasdaq Market on the date of determination, or if there are no sales for such date, then the last preceding business day on which there were sales, as
reported in The Wall Street Journal or such other source as the Board or the Committee deems reliable; or 
 (2) if such
Common Stock is publicly traded and is then listed on a national securities exchange, its closing price on the date of determination on the principal national securities exchange on which the Common Stock is listed or admitted to trading as reported
in The Wall Street Journal or such other source as the Board or the Committee deems reliable; or 
 (3) if such Common
Stock is publicly traded but is neither quoted on the Nasdaq Market nor listed or admitted to trading on a national securities exchange, the average of the closing bid and asked prices on the date of determination as reported in The Wall Street
Journal or such other source as the Board or the Committee deems reliable; or 
 (4) with respect to the initial Offering
Period, Fair Market Value on the Offering Date shall be the price at which shares of Common Stock are offered to the public pursuant to the Registration Statement covering the initial public offering of shares of Common Stock; and 

(5) if none of the foregoing is applicable, by the Board or the Committee in good faith. 

(k) “IPO” shall mean the initial public offering of Common Stock. 

(l) “Notice Period” shall mean within two (2) years from the Offering Date or within one (1) year from
the Purchase Date on which such shares were purchased. 
 (m) “Offering Date” shall mean the first
business day of each Offering Period. However, for the initial Offering Period the Offering Date shall be the Effective Date. 

  
 - 11 -

 (n) “Offering Period” shall mean a period with respect to which the
right to purchase Common Stock may be granted under the Plan, as determined by the Committee pursuant to Section 5(a). 

(o) “Parent” shall have the same meaning as “parent corporation” in Sections 424(e) and 424(f) of the
Code. 
 (p) “Participant” shall mean an eligible employee who meets the eligibility requirements set
forth in Section 4 and who is either automatically enrolled in the initial Offering Period or who elects to participate in this Plan pursuant to Section 6(b). 
 (q) “Participating Corporation” shall mean any Parent, Subsidiary or Affiliate that the Committee designates from time to time as eligible to participate in this Plan, provided,
however, that employees of Affiliates that are designated for participation may be granted only options that do not intend to comply with the Code Section 423 requirements. 

(r) “Plan” shall mean this Marin Software Incorporated 2013 Employee Stock Purchase Plan. 

(s) “Purchase Date” shall mean the last business day of each Purchase Period. 

(t) “Purchase Period” shall mean a period during which contributions may be made toward the purchase of Common
Stock under the Plan, as determined by the Committee pursuant to Section 5(b). 
 (u) “Purchase
Price” shall mean the price at which Participants may purchase shares of Common Stock under the Plan, as determined pursuant to Section 8. 
 (v) “Subsidiary” shall have the same meaning as “subsidiary corporation” in Sections 424(e) and 424(f) of the Code. 

  
 - 12 -

			
	 MARIN SOFTWARE INCORPORATED (THE “COMPANY”)

2013 EMPLOYEE STOCK PURCHASE PLAN (“ESPP”)
	  	ENROLLMENT/CHANGE FORM

  

					
	 SECTION 1:
  

ACTIONS
	  	 CHECK DESIRED
ACTION:                            AND
COMPLETE SECTIONS:
  

 ̈     Enroll in the
ESPP                                   2 + 3 + 4 + 6

 ̈     Change Contribution
Percentage             2 + 4 + 6

 ̈     Discontinue
Contributions                       2 + 5 + 6

			
	 SECTION 2:
  

PERSONAL DATA
	  	 Name: __________________________________________
  

Home Address: __________________________________________
  

_________________________________________________
  

Social Security No.:
 ̈ ̈ ̈- ̈ ̈- ̈ ̈ ̈ ̈
	  	 Department:
  

		
	 SECTION 3:
  

ENROLL
	  	 I hereby elect to participate in the ESPP, effective at the beginning of the next Offering Period. I elect to purchase
shares of the Common Stock of the Company pursuant to the ESPP. I understand that the stock certificate(s) for the shares purchased on my behalf will be issued in street name and deposited directly into my brokerage account. I hereby agree to take
all steps, and sign all forms, required to establish an account with the Company’s broker for this purpose.
  
 My participation will continue as long as I remain eligible, unless I withdraw from the ESPP by filing a new Enrollment/Change Form with the Company. I understand that I must notify the Company of any
disposition of shares purchased under the ESPP.

		
	 SECTION 4:
  

ELECT CONTRIBUTION PERCENTAGE
	  	 I hereby authorize the Company to withhold from each of my paychecks such amount as is necessary to equal at the end of
the applicable Offering Period     % of my compensation (as defined in the ESPP) paid during such Offering Period as long as I continue to participate in the ESPP. That amount will be applied to the purchase of shares of
the Company’s Common Stock pursuant to the ESPP. The percentage must be a whole number (from 1%, up to a maximum of 10%).
  

Please  ̈-increase  ̈-decrease my contribution
percentage.
  

Note:     You may change your contribution percentage only once within a Purchase
Period to be effective during that Purchase Period and the change can only be to decrease your contribution percentage. An increase in your contribution percentage can only take effect with the next Offering Period. Each change will become
effective as soon as reasonably practicable after the form is received by the Company.

					
			
	 SECTION 5:
  

DISCONTINUE CONTRIBUTIONS
	 	  ̈       
	 	I hereby elect to stop my contributions under the ESPP, effective as soon as reasonably practicable after this form is received by the Company. Please  ̈-refund all contributions to me in cash, without interest OR  ̈- use my contributions to purchase shares on the next Purchase Date. I understand that I
cannot resume participation until the start of the next Offering Period and must timely file a new enrollment form to do so.

					
		
	 SECTION 6:
  

ELECTRONIC DELIVERY AND ACCEPTANCE
	  	The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the ESPP by electronic means. I hereby consent
to receive such documents by electronic delivery and agree to participate in the ESPP through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

			
	 SECTION 7:

 
 ACKNOWLEDGMENT
AND SIGNATURE
	  	 I acknowledge that I have received a copy of the ESPP Prospectus (which summarizes the major features of the ESPP). I have read the
Prospectus and my signature below (or my clicking on the Accept box if this is an electronic form) indicates that I hereby agree to be bound by the terms of the ESPP.
  

Signature:                       
                                         
                                
Date:                            

  

			
	 MARIN SOFWARE INCORPORATED (THE “COMPANY”)

2013 EMPLOYEE STOCK PURCHASE PLAN (“ESPP”)
	  	 IPO

ENROLLMENT/CHANGE FORM

  

							
	 SECTION 1:
  

ACTIONS
	  	 CHECK DESIRED ACTION:

 
  ̈     Enroll in
the ESPP
  ̈     Change Contribution Percentage

 ̈     Discontinue Contributions
	  	 AND COMPLETE SECTIONS:

 
 2 + 3 + 4 + 6
 2 + 4 + 6
 2 + 5 + 6
	  	

													
	 SECTION 2:
  

PERSONAL DATA
	  	Name:	 	  
	  		  	Department:

													
		  	Home Address:	 	  
	  		  	  

													
		  	  
	  		  	
		  	Social Security No.:	 	 ̈ ̈ ̈- ̈ ̈- ̈ ̈ ̈ ̈	  		  	

											
		
	 SECTION 3:
  

ENROLL
	  	 I hereby elect to continue to participate in the ESPP. I understand that my enrollment was effective at the beginning of
the Offering Period. I elect to purchase shares of the Common Stock of the Company pursuant to the ESPP. I understand that the stock certificate(s) for the shares purchased on my behalf will be issued in street name and deposited directly into my
brokerage account. I hereby agree to take all steps, and sign all forms, required to establish an account with the Company’s broker for this purpose.
  

My participation will continue as long as I remain eligible, unless I withdraw from the ESPP by filing a new Enrollment/Change Form with the Company. I
understand that I must notify the Company of any disposition of shares purchased under the ESPP.

		
	 SECTION 4:
  

ELECT CONTRIBUTION PERCENTAGE
	  	 I hereby authorize the Company to withhold from each of my paychecks such amount as is necessary to equal at the end of
the applicable Offering Period     % of my compensation (as defined in the ESPP) paid during such Offering Period as long as I continue to participate in the ESPP. That amount will be applied to the purchase of shares of
the Company’s Common Stock pursuant to the ESPP. The percentage must be a whole number (from 1% up to a maximum of 10%).
  

Please  ̈-increase  ̈-decrease my contribution
percentage.

			
		  	Note:  	  	You may change your contribution percentage only once within a Purchase Period to be effective during that Purchase Period and the change can only be to decrease your
contribution percentage. An increase in your contribution percentage can only take effect with the next Offering Period. Each change will become effective as soon as reasonably practicable after the form is received by the
Company.
			
	 SECTION 5:
  

DISCONTINUE CONTRIBUTIONS
	  	 ̈	 	I hereby elect to stop my contributions under the ESPP, effective as soon as reasonably practicable after this form is received by the Company. Please  ̈-refund all contributions to me in cash, without interest OR  ̈- use my contributions to purchase shares on the next Purchase Date. I understand that I
cannot resume participation until the start of the next Offering Period and must timely file a new enrollment form to do so.
		
	 SECTION 6:
  

ELECTRONIC DELIVERY AND ACCEPTANCE
	  	The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the ESPP by electronic means. I hereby consent to
receive such documents by electronic delivery and agree to participate in the ESPP through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

			
	 SECTION 7:
  

ACKNOWLEDGMENT AND SIGNATURE
	  	I acknowledge that I have received a copy of the ESPP Prospectus (which summarizes the major features of the ESPP). I have read the Prospectus and my signature below (or my clicking
on the Accept box if this is an electronic form) indicates that I hereby agree to be bound by the terms of the ESPP.

													
							
		  	Signature:	  	  
	 		  	Date:	  	  
	  	

			
	 MARIN SOFWARE INCORPORATED (THE “COMPANY”)

2013 EMPLOYEE STOCK PURCHASE PLAN (“ESPP”)
	  	 IPO - INTERNATIONAL
 ENROLLMENT/CHANGE FORM

  

					
	 SECTION 1:
  

ACTIONS
	  	 CHECK DESIRED ACTION:
                                        
AND COMPLETE SECTIONS:
  
  ̈       Enroll in the ESPP
                                         
 2 + 3 + 4 + 12

 ̈       Change Contribution
Percentage                     2 + 4 + 12
  ̈       Discontinue Contributions
                              2 + 5 + 12

			
	 SECTION 2:
  

PERSONAL DATA
	  	 Name:
                                         
                           
  

Home Address:
                                         
                   
  
                                  
                                         
                              

 
 Social Security No.:  ̈ ̈ ̈- ̈ ̈- ̈ ̈ ̈ ̈
	  	 Department:
  
                                  
   

		
	 SECTION 3:
  

ENROLL
	  	 I hereby elect to continue to participate in the ESPP. I understand that my enrollment was effective at the beginning of
the Offering Period. I elect to purchase shares of the Common Stock of the Company pursuant to the ESPP. I understand that the stock certificate(s) for the shares purchased on my behalf will be issued in street name and deposited directly into my
brokerage account. I hereby agree to take all steps, and sign all forms, required to establish an account with the Company’s broker for this purpose.
  

My participation will continue as long as I remain eligible, unless I withdraw from the ESPP by filing a new Enrollment/Change Form with the Company. I
understand that I must notify the Company of any disposition of shares purchased under the ESPP.

		
	 SECTION 4:
  

ELECT CONTRIBUTION PERCENTAGE
	  	 I hereby authorize the Company to withhold from each of my paychecks such amount as is necessary to equal at the end of
the applicable Offering Period     % of my compensation (as defined in the ESPP) paid during such Offering Period as long as I continue to participate in the ESPP. That amount will be applied to the purchase of shares of
the Common Stock pursuant to the ESPP. The percentage must be a whole number (from 1%, up to a maximum of 10%).
  
 Please  ̈-increase  ̈-decrease my contribution percentage.

 

Note:       You may change your contribution percentage only once
within a Purchase Period to be effective during that Purchase Period and the change can only be to decrease your contribution percentage. An increase in your contribution percentage can only take effect with the next Offering Period. Each
change will become effective as soon as reasonably practicable after the form is received by the Company.

					
			
	 SECTION 5:
  

DISCONTINUE CONTRIBUTIONS
	 	 ̈  	 	I hereby elect to stop my contributions under the ESPP, effective as soon as reasonably practicable after this form is received by the Company. Please  ̈-refund all contributions to me in cash, without interest OR  ̈- use my contributions to purchase shares on the next Purchase Date. I understand that I
cannot resume participation until the start of the next Offering Period and must timely file a new enrollment form to do so.

					
		
	 SECTION 6:
  

RESPONSIBILITY FOR TAXES
	  	 I acknowledge that, regardless of any action taken by the Company or, if different, my employer (“Employer”),
the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to my participation in the ESPP and legally applicable to me (“Tax-Related Items”) is and
remains my responsibility and may exceed the amount actually withheld by the Company or my employer. Prior to the purchase of shares, I agree to make adequate arrangements satisfactory to the Company and/or my employer to satisfy all Tax-Related
Items. In this regard, I authorize the Company and/or my employer to satisfy the obligations with regard to all Tax-Related Items by withholding from my wages or other cash compensation payable to me by the Company and/or my employer. The Company
may refuse to purchase or deliver the shares or the proceeds of the sale of shares, if I fail to comply with my obligations in connection with the Tax-Related Items.
  

If the obligations for Tax-Related Items cannot be satisfied by withholding from my wages or other cash compensation as contemplated herein, then I
authorize the Company and/or my employer or their respective agents to satisfy the obligations with regard to all Tax-Related Items by withholding from proceeds of the sale of shares of Common Stock acquired upon a

			
		  	Purchase Date, either through a voluntary sale or through a mandatory sale arranged by the Company (on my behalf pursuant to this authorization without further consent). The
Company may withhold or account for Tax-Related Items by considering maximum applicable rates, in which case I will receive a refund of any over-withheld amount in cash and will have no entitlement to the Common Stock equivalent.
		
	 SECTION 7:
  

NATURE OF GRANT
	  	 By enrolling and participating in the ESPP, I acknowledge, understand and agree that:

 

•      the ESPP is established voluntarily by the Company, it is discretionary
in nature and it may be modified, amended, suspended or terminated by the Company at any time, to the extent permitted by the ESPP, and I am voluntarily participating in the ESPP;

 
 •      my
right to participate in the ESPP is voluntary and occasional and does not create any contractual or other right to receive future rights to purchase shares of the Common Stock;

 
 •      my
participation in the ESPP shall not create a right to employment or be interpreted as forming an employment or service contract with the Company, my employer or the Participating Corporations and shall not interfere with the ability of the Company,
my employer or any Participating Corporations to terminate my employment relationship (if any);
  

•      the ESPP and the shares of the Common Stock subject to the ESPP are not
part of normal or expected compensation for purposes of calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar
payments;
  

•      no claim or entitlement to compensation or damages shall arise from
forfeiture of the option under the ESPP resulting from termination of my employment with the Company or my employer (for any reason whatsoever, whether or not later found to be invalid or in breach of employment laws in the jurisdiction where I am
employed or the terms of my employment agreement, if any) and in consideration of the grant of the option and the issuance of shares of the Common Stock under the ESPP to which I am otherwise not entitled, I irrevocably agree never to institute any
claim against the Company, its Participating Corporations or my employer, waive my ability, if any, to bring any such claim, and release the Company, its Participating Corporations and my employer from any such claim; if, notwithstanding the
foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the ESPP, I shall be deemed irrevocably to have agreed not to pursue such claim and agree to execute any and all documents necessary to request
dismissal or withdrawal of such claim; and
  
 •      in the event of termination of my employment (for any reason whatsoever, whether or not later found to be invalid or in breach of employment laws in the
jurisdiction where I am employed or the terms of my employment agreement, if any), unless otherwise provided in the ESPP or determined by the Company, my right to participate in the ESPP and my option to purchase shares of the Common Stock, if any,
will terminate effective as of the date I cease to actively provide services and will not be extended by any notice period (e.g., employment would not include any contractual notice or any period of “garden leave” or similar period
mandated under employment laws in the jurisdiction where I am employed or the terms of my employment agreement, if any); the Committee shall have exclusive discretion to determine when I am no longer actively employed for purposes of the
ESPP.

		
	 SECTION 8:
  

DATA PRIVACY
	  	I hereby consent to the collection, use and transfer, in electronic or other form, of my personal data as described in this Enrollment Form and any other ESPP participation
materials (“Data”) by and among, as applicable, the Company and its Subsidiaries and my employer (if different) for the exclusive purpose of implementing, administering and managing my participation in the ESPP.

  
 2 

			
		  	 I understand that the Company and my employer may hold certain personal information about me, including, but not limited to, my
name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title, any shares of stock or directorships held in the Company, details of all options under the ESPP or any
other entitlement to shares of the Common Stock awarded, cancelled, exercised, vested, unvested, or outstanding in my favor, for the exclusive purpose of implementing, administering and managing the ESPP.

 
 I understand that Data will be transferred to [insert broker] or such other
ESPP service provider as may be selected by the Company in the future, which is assisting the Company, with the implementation, administration and management of the ESPP. I understand that the recipients of the Data may be located in the United
States or elsewhere, and that the recipients’ country may have different data privacy laws and protections than my country. I understand that if I reside outside the United States, I may request a list with the names and addresses of any
potential recipients of the Data by contacting my local human resources representative. I authorize the Company, [insert broker] and any other possible recipients which may assist the Company, (presently or in the future) with implementing,
administering and managing the ESPP to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing my participation in the ESPP. I understand that Data will be
held only as long as is necessary to implement, administer and manage my participation in the ESPP. I understand that if I reside outside the United States I may, at any time, view Data, request additional information about the storage and
processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing my local human resources representative. Further, I understand that I am providing the
consents herein on a purely voluntary basis. If I do not consent, or if I later seek to revoke my consent, my employment status or service and career with my employer will not be adversely affected; the only adverse consequence of refusing or
withdrawing my consent is that the Company would not be able to grant me the option to purchase shares of the Common Stock under the ESPP or other equity awards or administer or maintain such awards. Therefore, I understand that refusing or
withdrawing my consent may affect my ability to participate in the ESPP. For more information on the consequences of my refusal to consent or withdrawal of consent, I understand that I may contact my local human resources
representative.

		
	 SECTION 9:
  

ELECTRONIC DELIVERY AND ACCEPTANCE
	  	The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the ESPP by electronic means. I hereby consent to receive
such documents by electronic delivery and agree to participate in the ESPP through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.
		
	 SECTION 10:
  

SEVERABILITY
	  	The provisions of this Enrollment Form are severable and if any one or more provisions are determined to be illegal or otherwise unenforceable, in whole or in part, the remaining
provisions shall nevertheless be binding and enforceable.
		
	 SECTION 11:
  

IMPOSITION OF OTHER REQUIREMENTS
	  	 The Company may elect to suspend, terminate or modify the terms of the ESPP at any time to the extent permitted by the ESPP. I agree
to be bound by such suspension, termination or modification regardless of whether notice is given to me of such event, subject in any case to my right to withdraw from the ESPP in accordance with the ESPP terms.

 
 The Company reserves the right to impose other requirements on my participation in
the ESPP, on any shares of the Common Stock purchased under the ESPP, to the extent the Company determines it is necessary or advisable for legal or administrative reasons, and to require me to sign any additional agreements or undertakings that may
be necessary to accomplish the foregoing.

		
	 SECTION 12:
  

ACKNOWLEDGMENT AND SIGNATURE
	  	 I acknowledge that I have received a copy of the ESPP Prospectus (which summarizes the major features of the ESPP). I have read the
Prospectus and my signature below (or my clicking on the Accept box if this is an electronic form) indicates that I hereby agree to be bound by the terms of the ESPP.
  

Signature:                       
                                         
                                  Date:     
                         

  
 3 

			
	 MARIN SOFTWARE INCORPORATED (THE “COMPANY”)

2013 EMPLOYEE STOCK PURCHASE PLAN (“ESPP”)
	  	ENROLLMENT/CHANGE FORM

  

					
		
	 SECTION 1:
  

ACTIONS
	  	 CHECK DESIRED
ACTION:                              AND
COMPLETE SECTIONS:
  
  ̈    Enroll in the
ESPP                                   2 + 3 + 4 + 12

 ̈    Change Contribution
Percentage             2 + 4 + 12

 ̈    Discontinue
Contributions                       2 + 5 + 12

			
	 SECTION 2:
  

PERSONAL DATA
	  	 Name: __________________________________________
  

Home Address: __________________________________________
  

_________________________________________________
  

Social Security No.:
 ̈ ̈ ̈- ̈ ̈- ̈ ̈ ̈ ̈
	  	 Department:
  

		
	 SECTION 3:
  

ENROLL
	  	 I hereby elect to participate in the ESPP, effective at the beginning of the next Offering Period. I elect to purchase
shares of the Common Stock of the Company pursuant to the ESPP. I understand that the stock certificate(s) for the shares purchased on my behalf will be issued in street name and deposited directly into my brokerage account. I hereby agree to take
all steps, and sign all forms, required to establish an account with the Company’s broker for this purpose.
  
 My participation will continue as long as I remain eligible, unless I withdraw from the ESPP by filing a new Enrollment/Change Form with the Company. I understand that I must notify the Company of any
disposition of shares purchased under the ESPP.

		
	 SECTION 4:
  

ELECT CONTRIBUTION PERCENTAGE
	  	 I hereby authorize the Company to withhold from each of my paychecks such amount as is necessary to equal at the end of
the applicable Offering Period     % of my compensation (as defined in the ESPP) paid during such Offering Period as long as I continue to participate in the ESPP. That amount will be applied to the purchase of shares of
the Common Stock pursuant to the ESPP. The percentage must be a whole number (from 1%, up to a maximum of 10%).
  
 Please  ̈-increase  ̈-decrease my contribution percentage.

 

Note:     You may change your contribution percentage only once within a Purchase
Period to be effective during that Purchase Period and the change can only be to decrease your contribution percentage. An increase in your contribution percentage can only take effect with the next Offering Period. Each change will become
effective as soon as reasonably practicable after the form is received by the Company.

		
	 SECTION 5:
  

DISCONTINUE CONTRIBUTIONS
	  	  ̈       I hereby elect to
stop my contributions under the ESPP, effective as soon as reasonably practicable after this form is received by the Company. Please  ̈-refund all contributions to me in cash, without interest OR
 ̈- use my contributions to purchase shares on the next Purchase Date. I understand that I cannot resume participation until the start of the next Offering Period and must timely file a new
enrollment form to do so.

		
	 SECTION 6:
  

RESPONSIBILITY FOR TAXES
	  	 I acknowledge that, regardless of any action taken by the Company or, if different, my employer (“Employer”),
the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to my participation in the ESPP and legally applicable to me (“Tax-Related Items”) is and
remains my responsibility and may exceed the amount actually withheld by the Company or my employer. Prior to the purchase of shares, I agree to make adequate arrangements satisfactory to the Company and/or my employer to satisfy all Tax-Related
Items. In this regard, I authorize the Company and/or my employer to satisfy the obligations with regard to all Tax-Related Items by withholding from my wages or other cash compensation payable to me by the Company and/or my employer. The Company
may refuse to purchase or deliver the shares or the proceeds of the sale of shares, if I fail to comply with my obligations in connection with the Tax-Related Items.
  

If the obligations for Tax-Related Items cannot be satisfied by withholding from my wages or other cash compensation as contemplated herein, then I
authorize the Company and/or my employer or their respective agents to satisfy the obligations with regard to all Tax-Related Items by withholding from proceeds of the sale of shares of Common Stock acquired upon a Purchase Date, either through a
voluntary sale or through a mandatory sale arranged by the

			
		  	Company (on my behalf pursuant to this authorization without further consent). The Company may withhold or account for Tax-Related Items by considering maximum applicable
rates, in which case I will receive a refund of any over-withheld amount in cash and will have no entitlement to the Common Stock equivalent.
		
	 SECTION 7:

NATURE OF GRANT
	  	 By enrolling and participating in the ESPP, I acknowledge, understand and agree that:

 

•      the ESPP is established voluntarily by the Company, it is discretionary
in nature and it may be modified, amended, suspended or terminated by the Company at any time, to the extent permitted by the ESPP, and I am voluntarily participating in the ESPP;

 
 •      my
right to participate in the ESPP is voluntary and occasional and does not create any contractual or other right to receive future rights to purchase shares of the Common Stock;

 
 •      my
participation in the ESPP shall not create a right to employment or be interpreted as forming an employment or service contract with the Company, my employer or the Participating Corporations and shall not interfere with the ability of the Company,
my employer or any Participating Corporations to terminate my employment relationship (if any);
  

•      the ESPP and the shares of the Common Stock subject to the ESPP are not
part of normal or expected compensation for purposes of calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar
payments;
  

•      no claim or entitlement to compensation or damages shall arise from
forfeiture of the option under the ESPP resulting from termination of my employment with the Company or my employer (for any reason whatsoever, whether or not later found to be invalid or in breach of employment laws in the jurisdiction where I am
employed or the terms of my employment agreement, if any) and in consideration of the grant of the option and the issuance of shares of the Common Stock under the ESPP to which I am otherwise not entitled, I irrevocably agree never to institute any
claim against the Company, its Participating Corporations or my employer, waive my ability, if any, to bring any such claim, and release the Company, its Participating Corporations and my employer from any such claim; if, notwithstanding the
foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the ESPP, I shall be deemed irrevocably to have agreed not to pursue such claim and agree to execute any and all documents necessary to request
dismissal or withdrawal of such claim; and
  
 •      in the event of termination of my employment (for any reason whatsoever, whether or not later found to be invalid or in breach of employment laws in the
jurisdiction where I am employed or the terms of my employment agreement, if any), unless otherwise provided in the ESPP or determined by the Company, my right to participate in the ESPP and my option to purchase shares of the Common Stock, if any,
will terminate effective as of the date I cease to actively provide services and will not be extended by any notice period (e.g., employment would not include any contractual notice or any period of “garden leave” or similar period
mandated under employment laws in the jurisdiction where I am employed or the terms of my employment agreement, if any); the Committee shall have exclusive discretion to determine when I am no longer actively employed for purposes of the
ESPP.

		
	 SECTION 8:

DATA PRIVACY
	  	 I hereby consent to the collection, use and transfer, in electronic or other form, of my personal data as described in this
Enrollment Form and any other ESPP participation materials (“Data”) by and among, as applicable, the Company and its Subsidiaries and my employer (if different) for the exclusive purpose of implementing, administering and managing my
participation in the ESPP.
  
 I understand that the Company
and my employer may hold certain personal information

  
 2 

			
		  	 about me, including, but not limited to, my name, home address and telephone number, date of birth, social insurance number or
other identification number, salary, nationality, job title, any shares of stock or directorships held in the Company, details of all options under the ESPP or any other entitlement to shares of the Common Stock awarded, cancelled, exercised,
vested, unvested, or outstanding in my favor, for the exclusive purpose of implementing, administering and managing the ESPP.
  

I understand that Data will be transferred to [insert broker] or such other ESPP service provider as may be selected by the Company in the future,
which is assisting the Company, with the implementation, administration and management of the ESPP. I understand that the recipients of the Data may be located in the United States or elsewhere, and that the recipients’ country may have
different data privacy laws and protections than my country. I understand that if I reside outside the United States, I may request a list with the names and addresses of any potential recipients of the Data by contacting my local human resources
representative. I authorize the Company, [insert broker] and any other possible recipients which may assist the Company, (presently or in the future) with implementing, administering and managing the ESPP to receive, possess, use, retain and
transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing my participation in the ESPP. I understand that Data will be held only as long as is necessary to implement, administer and manage my
participation in the ESPP. I understand that if I reside outside the United States I may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw
the consents herein, in any case without cost, by contacting in writing my local human resources representative. Further, I understand that I am providing the consents herein on a purely voluntary basis. If I do not consent, or if I later seek to
revoke my consent, my employment status or service and career with my employer will not be adversely affected; the only adverse consequence of refusing or withdrawing my consent is that the Company would not be able to grant me the option to
purchase shares of the Common Stock under the ESPP or other equity awards or administer or maintain such awards. Therefore, I understand that refusing or withdrawing my consent may affect my ability to participate in the ESPP. For more information
on the consequences of my refusal to consent or withdrawal of consent, I understand that I may contact my local human resources representative.

		
	 SECTION 9:
  

ELECTRONIC DELIVERY AND ACCEPTANCE
	  	The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the ESPP by electronic means. I hereby consent to receive
such documents by electronic delivery and agree to participate in the ESPP through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.
		
	 SECTION 10:
  

SEVERABILITY
	  	The provisions of this Enrollment Form are severable and if any one or more provisions are determined to be illegal or otherwise unenforceable, in whole or in part, the remaining
provisions shall nevertheless be binding and enforceable.
		
	 SECTION 11:
  

IMPOSITION OF OTHER REQUIREMENTS
	  	 The Company may elect to suspend, terminate or modify the terms of the ESPP at any time to the extent permitted by the ESPP. I agree
to be bound by such suspension, termination or modification regardless of whether notice is given to me of such event, subject in any case to my right to withdraw from the ESPP in accordance with the ESPP terms.

 
 The Company reserves the right to impose other requirements on my participation in
the ESPP, on any shares of the Common Stock purchased under the ESPP, to the extent the Company determines it is necessary or advisable for legal or administrative reasons, and to require me to sign any additional agreements or undertakings that may
be necessary to accomplish the foregoing.

		
	 SECTION 12:
  

ACKNOWLEDGMENT AND SIGNATURE
	  	 I acknowledge that I have received a copy of the ESPP Prospectus (which summarizes the major features of the ESPP). I have read the
Prospectus and my signature below (or my clicking on the Accept box if this is an electronic form) indicates that I hereby agree to be bound by the terms of the ESPP.
  

Signature:
                                         
                             Date:
                                    

 

  
 3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00213-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00213-of-00352.parquet"}]]