Document:

Form of 2012 Equity Incentive Plan

 Exhibit 10.3 
 KAYAK SOFTWARE CORPORATION 
 2012 EQUITY INCENTIVE PLAN 

 TABLE OF CONTENTS 

 

							
			
	 1.
	 	Purpose	  	 	1	  
			
	 2.
	 	Definitions	  	 	1	  
			
	 3.
	 	Term of the Plan	  	 	5	  
			
	 4.
	 	Stock Subject to the Plan	  	 	6	  
			
	 5.
	 	Administration	  	 	7	  
			
	 6.
	 	Authorization of Grants	  	 	7	  
			
	 7.
	 	Specific Terms of Awards	  	 	9	  
			
	 8.
	 	Adjustment Provisions	  	 	15	  
			
	 9.
	 	Change of Control	  	 	18	  
			
	 10.
	 	Settlement of Awards	  	 	19	  
			
	 11.
	 	Reservation of Stock	  	 	22	  
			
	 12.
	 	Limitation of Rights in Stock; No Special Service Rights	  	 	22	  
			
	 13.
	 	Unfunded Status of Plan	  	 	22	  
			
	 14.
	 	Nonexclusivity of the Plan	  	 	22	  
			
	 15.
	 	No Guarantee of Tax Consequences	  	 	23	  
			
	 16.
	 	Termination and Amendment of the Plan	  	 	23	  
			
	 17.
	 	Notices and Other Communications	  	 	24	  
			
	 18.
	 	Administrative Provisions	  	 	24	  
			
	 19.
	 	Governing Law	  	 	24	  

 KAYAK SOFTWARE CORPORATION 

2012 EQUITY INCENTIVE PLAN 
 1. Purpose 
 This Plan is intended to encourage ownership of Stock by
employees, consultants and directors of the Company and its Affiliates and to provide additional incentive for them to promote the success of the Company’s business through the grant of Awards of or pertaining to shares of the Company’s
Stock. The Plan is intended to be an incentive stock option plan within the meaning of Section 422 of the Code, but not all Awards are required to be Incentive Options. 
 2. Definitions 
 As used in the Plan, the following terms shall have the
respective meanings set out below, unless the context clearly requires otherwise: 
 2.1. Accelerate, Accelerated,
and Acceleration, means: (a) when used with respect to a Stock Right, that as of the time of reference the Stock Right will become exercisable with respect to some or all of the shares of Stock for which it was not then otherwise
exercisable by its terms; (b) when used with respect to Restricted Stock or Restricted Stock Units, that the Risk of Forfeiture otherwise applicable to the Stock or Units shall expire with respect to some or all of the shares of Restricted
Stock or Units then still otherwise subject to the Risk of Forfeiture; and (c) when used with respect to Performance Units, that the applicable Performance Goals or other business objectives shall be deemed to have been met as to some or all of
the Units. 
 2.2. Affiliate means any corporation, partnership, limited liability company, business trust, or other
entity controlling, controlled by or under common control with the Company. 
 2.3. Award means any grant or sale
pursuant to the Plan of Options, Stock Appreciation Rights, Performance Units, Restricted Stock, Restricted Stock Units, or Stock Grants. 
 2.4. Award Agreement means an agreement between the Company and the recipient of an Award, or other notice of grant of an Award, setting forth the terms and conditions of the Award. 

2.5. Board means the Company’s Board of Directors. 
 2.6. Cause means, with respect to a Participant, any one or more of the following: (i) failure or refusal to perform the Participant’s reasonably assigned duties to the Company;
(ii) material breach of any employment agreement, any consulting or services agreement, any non-disclosure or non-competition agreement or any other agreement between the Participant and the Company relating to the Participant’s employment
or other association with the Company and its Affiliates; (iii) embezzlement, misappropriation of assets or property (tangible or intangible) of the Company; (iv) gross negligence, misconduct, neglect of duties, theft, dishonesty or fraud
with respect to the Company, or breach of fiduciary duty to the Company; or (v) the indictment or conviction of a felony, or any crime involving moral turpitude, including a plea of guilty or nolo contendre. Notwithstanding the foregoing, if
the Participant and the Company or an Affiliate 

 
have entered into an employment, consulting or services agreement that defines the term “Cause” (or a similar term), such definition shall govern for purposes of determining whether the
Participant has been terminated for Cause for purposes of the Plan. The determination of Cause shall be made by the Committee, in its sole discretion. 
 2.7. Change of Control means the occurrence of any of the following after the date of the approval of the Plan by the Board: 

(a) a Transaction, unless securities possessing more than 50% of the total combined voting power of the survivor’s or
acquiror’s outstanding securities (or the securities of any parent thereof) are held by a person or persons who held securities possessing more than 50% of the total combined voting power of the Company’s outstanding securities immediately
prior to that transaction, or 
 (b) any person or group of persons (within the meaning of Section 13(d)(3) of the
Securities Exchange Act of 1934, as amended and in effect from time to time) directly or indirectly acquires, including but not limited to by means of a merger or consolidation, beneficial ownership (determined pursuant to Securities and Exchange
Commission Rule 13d-3 promulgated under the said Exchange Act) of securities possessing more than 50% of the total combined voting power of the Company’s outstanding securities, unless acquired pursuant to a tender or exchange offer made
directly to the Company’s stockholders that the Board recommends such stockholders accept, other than (i) the Company or an Affiliate, (ii) an employee benefit plan of the Company or any of its Affiliates, (iii) a trustee or
other fiduciary holding securities under an employee benefit plan of the Company or any of its Affiliates, or (iv) an underwriter temporarily holding securities pursuant to an offering of such securities, or 

(c) over a period of twenty-four (24) consecutive months or less there is a change in the composition of the Board such that a
majority of the Board members (rounded up to the next whole number, if a fraction) ceases, by reason of one or more proxy contests for the election of Board members, to be composed of individuals who either (i) have been Board members
continuously since the beginning of that period, or (ii) have been elected or nominated for election as Board members during such period by at least a majority of the Board members described in the preceding clause (i) who were still in
office at the time that election or nomination was approved by the Board; or 
 (d) a majority of the Board votes in favor of a
decision that a Change of Control has occurred. 
 Notwithstanding the foregoing, no Transaction or other event described in (a), (b),
(c) or (d) above shall constitute a “Change of Control” for purposes of any Award which is subject to Section 409A of the Code and under which a “Change of Control” is a payment event, unless either such
Transaction or event is also a change of control event within the meaning of Treas. Reg. § 1.409A-3(i)(5) or the Committee determines such a change of control event is not required to assure the Award’s continued compliance with
Section 409A of the Code. 
 2.8. Class A Common Stock means the Class A Common Stock, par value $0.001
per share, of the Company. 
 2.9. Class B Common Stock means the Class B Common Stock, par value $0.001 per share, of
the Company. 

  
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 2.10. Code means the Internal Revenue Code of 1986, as amended from time to time, or
any successor statute thereto, and any regulations issued from time to time thereunder. 
 2.11. Committee means the
Compensation Committee of the Board, which in general is responsible for the administration of the Plan, as provided in Section 5 of this Plan. For any period during which no such committee is in existence “Committee” shall mean the
Board and all authority and responsibility assigned to the Committee under the Plan shall be exercised, if at all, by the Board. 
 2.12. Company means KAYAK Software Corporation, a corporation organized under the laws of the Delaware. 
 2.13. Effective Date means the date on which the Company first sells shares of Class A Common Stock to the underwriters pursuant to the Company’s initial public offering. 

2.14. Eligible Founder means, at any time, either Daniel Stephen Hafner or Paul M. English, each as a natural living person, if at
such time such person is (i) an employee of the Company and/or any of its Affiliates, (ii) a member of the Board and/or (iii) otherwise providing services to the Company and/or any of its Affiliates pursuant, for the purposes of this
clause (iii) only, to a written agreement which has been approved by the Board and which specifically states that the provision of such services qualifies such person as an Eligible Founder hereunder. 

2.15. Fiscal Year means each fiscal year of the Company, as established from time to time by the Board. 

2.16. Good Reason means, in connection with a Participant’s termination of his or her employment or other association with
the Company and its Affiliates, such termination occurring within thirty (30) days after any of the following events: (i) mutual written agreement by a Participant and the Board that Good Reason exists; (ii) a material violation by
the Company of its employment, consulting or services agreement with the Participant that continues uncured for a period of thirty (30) days after notice thereof by the Participant; (iii) if such Participant is an executive officer of the
Company, demotion of the Participant, without the Participant’s prior consent, to a position that does not include significant managerial responsibilities; (iv) reduction in the Participant’s base salary, other than in connection
with, and substantially proportionate to, a general salary reduction program that applies to the Company’s similar class of officers or employees; or (v) a relocation of the Company that requires the Participant to commute to an office
that is more than sixty (60) miles away from the Participant’s then current place of employment. Notwithstanding the foregoing, if the Participant and the Company or an Affiliate have entered into an employment, consulting or services
agreement that defines the term “Good Reason” (or a similar term), such definition shall govern for purposes of determining whether the Participant has been terminated for Good Reason for purposes of the Plan. The determination of Good
Reason shall be made by the Committee, in its sole discretion. 
 2.17. Grant Date means the date as of which an Option
is granted, as determined under Section 7.1(a). 
 2.18. Incentive Option means an Option which by its terms is to
be treated as an “incentive stock option” within the meaning of Section 422 of the Code. 

  
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 2.19. Initial Award means, with respect to any Participant, an Award made under the
Plan to such Participant if, and only if, prior to the grant of such Award such Participant had not previously been granted (i) an Award under this Plan, (ii) an “Award” under the Company’s 2005 Equity Incentive Plan (as the
same has been in effect at any time, including as amended, and as amended and restated, from time to time) and/or (iii) an “Award” under the Company’s 2004 Stock Incentive Plan (as the same has been in effect at any time,
including as amended from time to time). 
 2.20. Market Value means the value of a share of Stock on a particular date
determined by such methods or procedures as may be established by the Committee. Unless otherwise determined by the Committee, the Market Value of Stock as of any date is the closing price for the Class A Common Stock as reported on the NASDAQ
Global Select Market (or on any other national securities exchange on which the Stock is then listed) for that date or, if no closing price is reported for that date, the closing price on the next preceding date for which a closing price was
reported. 
 2.21. Nonstatutory Option means any Option that is not an Incentive Option. 

2.22. Option means an option to purchase shares of Stock. 

2.23. Optionee means an eligible individual to whom an Option shall have been granted under the Plan. 

2.24. Participant means any holder of an outstanding Award under the Plan. 

2.25. Performance Criteria and Performance Goals have the meanings given such terms in Section 7.7(f). 

2.26. Performance Period means the one or more periods of time, which may be of varying and overlapping durations, selected by the
Committee, over which the attainment of one or more Performance Goals or other business objectives will be measured for purposes of determining a Participant’s right to, and the payment of, a Performance Unit. 

2.27. Performance Unit means a right granted to a Participant under Section 7.5, to receive cash, Stock or other Awards, the
payment of which is contingent on achieving Performance Goals or other business objectives established by the Committee. 

2.28. Plan means this 2012 Equity Incentive Plan of the Company, as amended from time to time, and including any attachments or
addenda hereto. 
 2.29. Qualified Performance-Based Awards means Awards to persons who are or become covered employees
within the meaning of Section 162(m) of the Code and which are intended to or at grant would qualify as “performance-based compensation” under Section 162(m) of the Code. 

2.30. Restricted Stock means a grant or sale of shares of Stock to a Participant subject to a Risk of Forfeiture. 

2.31. Restricted Stock Units means rights to receive shares of Stock at the close of a Restriction Period, subject to a Risk of
Forfeiture. 

  
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 2.32. Restriction Period means the period of time, established by the Committee in
connection with an Award of Restricted Stock or Restricted Stock Units, during which the shares of Restricted Stock or Restricted Stock Units are subject to a Risk of Forfeiture described in the applicable Award Agreement. 

2.33. Risk of Forfeiture means a limitation on the right of the Participant to retain Restricted Stock or Restricted Stock Units,
including a right of the Company to reacquire shares of Restricted Stock at less than its then Market Value, arising because of the occurrence or non-occurrence of specified events or conditions. 

2.34. Stock means Class A Common Stock, Class B Common Stock and/or such other securities as may be substituted for Stock
pursuant to Section 8, as the context requires. 
 2.35. Stock Appreciation Right means a right to receive any
excess in the Market Value of shares of Stock (except as otherwise provided in Section 7.2(c)) over a specified exercise price. 
 2.36. Stock Grant means the grant of shares of Stock not subject to restrictions or other forfeiture conditions. 
 2.37. Stock Right means an Award in the form of an Option or a Stock Appreciation Right. 
 2.38. Stockholders’ Agreement means any agreement by and among the holders of at least a majority of the outstanding voting securities of the Company and setting forth, among other provisions,
restrictions upon the transfer of shares of Stock or on the exercise of rights appurtenant thereto (including but not limited to voting rights). 
 2.39. Ten Percent Owner means a person who owns, or is deemed within the meaning of Section 422(b)(6) of the Code to own, stock possessing more than 10% of the total combined voting power of
all classes of stock of the Company (or any parent or subsidiary corporations of the Company, as defined in Sections 424(e) and (f), respectively, of the Code). Whether a person is a Ten Percent Owner shall be determined with respect to an
Option based on the facts existing immediately prior to the Grant Date of the Option. 
 2.40. Transaction means
(1) any merger or consolidation of the Company with or into another entity as a result of which the Stock of the Company is converted into or exchanged for the right to receive cash, securities or other property or is cancelled, (2) any
sale or exchange of all of the Stock of the Company for cash, securities or other property, (3) any sale, transfer, or other disposition of all or substantially all of the Company’s assets to one or more other persons in a single
transaction or series of related transactions or (4) any liquidation or dissolution of the Company. 
 3. Term of the Plan

 Unless the Plan shall have been earlier terminated by the Board, Awards may be granted under this Plan at any time in the
period commencing on the date of approval of the Plan by the Board and ending immediately prior to the tenth anniversary of the Effective Date. Awards granted pursuant to the Plan within that period shall not expire solely by reason of the
termination of the Plan. 

  
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 4. Stock Subject to the Plan 
 4.1. Stock Subject to the Plan. At no time shall the number of shares of Stock issued pursuant to or subject to outstanding Awards granted under the Plan, nor the number of shares of Stock issued
pursuant to or subject to outstanding Incentive Options, exceed 1,100,000 shares of Stock, which may be solely shares of Class A Common Stock or solely shares of Class B Common Stock, or any combination thereof as determined by the Committee in
its sole discretion provided, however, that in no event (other than as contemplated by the immediately following proviso) shall the maximum aggregate number of shares of Stock exceed 1,100,000; and provided, further, that such maximum
number of shares of Stock shall be subject to automatic increase as set forth in Section 4.3 of the Plan, to the other provisions of this Section 4 and to the provisions of Section 8 of the Plan. The Committee shall determine, and
specify for each Award, whether the Stock subject to such Award consists of Class A Common Stock, Class B Common Stock, or a specified combination of Class A Common Stock and Class B Common Stock, subject in all instances to the
limitations specified in Section 6.1 with respect to Awards for Class B Common Stock. 
 4.2. Lapsed Awards. For
purposes of applying the foregoing limitation, settlement of any Award shall not count against the foregoing limitations except to the extent settled in the form of Stock and, without limiting the generality of the foregoing: 

(a) if any Option or Stock-settled Stock Appreciation Right expires, terminates, or is cancelled for any reason without having been
exercised in full, or if any other Award is forfeited by the recipient or repurchased at less than its Market Value as a means of effecting a forfeiture, the shares of Stock not purchased by the Optionee or which are forfeited by the recipient or
repurchased shall again be available for Awards to be granted under the Plan (as either Class A Common Stock or Class B Common Stock, regardless of the class of Stock so forfeited); 

(b) if any Option is exercised by delivering previously owned shares of Stock in payment of the exercise price therefor, only the net
number of shares, that is, the number of shares of Stock issued minus the number received by the Company in payment of the exercise price, shall be considered to have been issued pursuant to an Award granted under the Plan; and 

(c) any shares of Stock either tendered or withheld in satisfaction of tax withholding obligations of the Company or an Affiliate shall
again be available for issuance under the Plan (as either Class A Common Stock or Class B Common Stock, regardless of the class of Stock so tendered or withheld). 
 None of the foregoing provisions, the provisions of Section 4.3 or the adjustment provisions of Section 8, shall apply in determining the maximum number of shares of Stock issued pursuant to or
subject to outstanding Incentive Options unless consistent with the provisions of Section 422 of the Code, however. Shares of Stock issued pursuant to the Plan may be either authorized but unissued shares or shares held by the Company in its
treasury. 
 4.3. Automatic Available Stock Increase. The number of shares of Stock available for issuance under the Plan
will be increased on the first day of each Fiscal Year beginning with the 2013 Fiscal Year, in an amount equal to the least of (i) three and one-half percent (3.5%) of the outstanding Stock as of the last day of the immediately preceding
Fiscal Year (treating, for this purpose, as outstanding all shares of Stock issuable upon conversion and/or exercise of outstanding securities which are, as of such date, convertible into and/or exercisable for Stock), (ii) 2,000,000 shares of
Stock or (iii) such number of shares of Stock as may be determined by the Board. 

  
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 5. Administration 
 The Plan shall be administered by the Committee; provided, however, that at any time and on any one or more occasions the Board may itself exercise any of the powers and responsibilities assigned
the Committee under the Plan and when so acting shall have the benefit of all of the provisions of the Plan pertaining to the Committee’s exercise of its authorities hereunder; and provided further, however, that the Committee may
delegate to an executive officer or officers the authority to grant Awards hereunder to employees who are not officers, and to consultants, in accordance with such guidelines as the Committee shall set forth at any time or from time to time. Subject
to the provisions of the Plan, the Committee shall have complete authority, in its discretion, to make or to select the manner of making all determinations with respect to each Award to be granted by the Company under the Plan including the
employee, consultant or director to receive the Award and the form of Award. In making such determinations, the Committee may take into account the nature of the services rendered by the respective employees, consultants, and directors, their
present and potential contributions to the success of the Company and its Affiliates, and such other factors as the Committee in its discretion shall deem relevant. Subject to the provisions of the Plan, the Committee shall also have complete
authority to interpret the Plan, to prescribe, amend and rescind rules and regulations relating to it, to determine the terms and provisions of the respective Award Agreements (which need not be identical), and to make all other determinations
necessary or advisable for the administration of the Plan. The Committee’s determinations made in good faith on matters referred to in the Plan shall be final, binding and conclusive on all persons having or claiming any interest under the Plan
or an Award made pursuant hereto. 
 6. Authorization of Grants 
 6.1. Eligibility. The Committee may grant from time to time and at any time prior to the termination of the Plan one or more Awards, either alone or in combination with any other Awards, to any
employee of or consultant to one or more of the Company and its Affiliates or to any non-employee member of the Board or of any board of directors (or similar governing authority) of any Affiliate. However, only employees of the Company, and of any
parent or subsidiary corporations of the Company, as defined in Sections 424(e) and (f), respectively, of the Code, shall be eligible for the grant of an Incentive Option. Notwithstanding any provision of this Plan to the contrary, Awards in
respect of Class B Common Stock may only be granted to a Participant if such Participant, at the time of such grant, is an Eligible Founder. 
 6.2. General Terms of Awards. Each grant of an Award shall be subject to all applicable terms and conditions of the Plan (including but not limited to any specific terms and conditions applicable
to that type of Award set out in the following Section), and such other terms and conditions, not inconsistent with the terms of the Plan, as the Committee may prescribe. No prospective Participant shall have any rights with respect to an Award,
unless and until such Participant shall have complied with the applicable terms and conditions of such Award (including if applicable delivering a fully executed copy of any agreement evidencing an Award to the Company). 

  
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 6.3. Effect of Termination of Employment, Etc. Unless the Committee shall provide
otherwise with respect to any Award, if the Participant’s employment or other association with the Company and its Affiliates ends for any reason, including because of an Affiliate ceasing to be an Affiliate, (a) any outstanding Stock
Right of the Participant shall cease to be exercisable in any respect not later than 90 days following that event and, for the period it remains exercisable following that event, shall be exercisable only to the extent exercisable at the date of
that event, and (b) any other outstanding Award of the Participant shall be forfeited or otherwise subject to return to or repurchase by the Company on the terms specified in the applicable Award Agreement. Cessation of the performance of
services in one capacity, for example, as an employee, shall not result in termination of an Award while the Participant continues to perform services in another capacity, for example as a director. Military or sick leave or other bona fide leave
shall not be deemed a termination of employment or other association, provided that it does not exceed the longer of ninety (90) days or the period during which the absent Participant’s reemployment rights, if any, are guaranteed by
statute or by contract. To the extent consistent with applicable law, the Committee may provide that Awards continue to vest for some or all of the period of any such leave, or that their vesting shall be tolled during any such leave and only
recommence upon the Participant’s return from leave, if ever. 
 6.4. Non-Transferability of Awards. Except as
otherwise provided in this Section 6.4, Awards shall not be transferable, and no Award or interest therein may be sold, transferred, pledged, assigned, or otherwise alienated or hypothecated, other than by will or by the laws of descent and
distribution. All of a Participant’s rights in any Award may be exercised during the life of the Participant only by the Participant or the Participant’s legal representative. However, the Committee may, at or after the grant of an Award
of a Nonstatutory Option, or shares of Restricted Stock, provide that such Award may be transferred by the recipient to a family member; provided, however, that any such transfer is without payment of any consideration whatsoever and that no
transfer shall be valid unless first approved by the Committee, acting in its sole discretion. For this purpose, “family member” means any child, stepchild, grandchild, parent, grandparent, stepparent, 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 person sharing the employee’s household (other than a tenant or employee), a trust in which the
foregoing persons have more than fifty (50) percent of the beneficial interests, a foundation in which the foregoing persons (or the Participant) control the management of assets, and any other entity in which these persons (or the Participant)
own more than fifty (50) percent of the voting interests. 
 6.5. Code Limits on Grants of Qualified Performance-Based
Awards. In no event shall the number of shares of Stock covered or referenced by either Options or Stock Appreciation Rights, or other Awards which are granted as Qualified Performance-Based Awards, to any one person in any one calendar year
exceed 1,500,000 shares of Stock, which may be solely shares of Class A Common Stock or solely shares of Class B Common Stock, or any combination thereof as determined by the Committee in its sole discretion provided, however,
that in no event shall the maximum aggregate number of shares of Stock covered by Awards to any one person in any one calendar year exceed 1,500,000. These limitations shall not apply prior to the date required to apply under the regulations of the
U.S. Department of Treasury promulgated under Section 162(m) of the Code, however. Solely for purposes of applying the limitations of this Section 6.5, if in effect, any shares of Stock subject to Options or Stock Appreciation Rights which
are canceled (or deemed canceled, as a result of repricing described in applicable regulations of the U.S. Department of Treasury promulgated under Section 162(m) of the Code) shall nevertheless continued to be counted even after such
cancellation (or deemed cancellation). 

  
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 7. Specific Terms of Awards 
 7.1. Options. 
 (a) Date of Grant. The granting of an Option shall
take place at the time specified in the Award Agreement. Only if expressly so provided in the applicable Award Agreement shall the Grant Date be the date on which the Award Agreement shall have been duly executed and delivered by the Company and the
Optionee. 
 (b) Exercise Price. The price at which shares of Stock may be acquired under each Incentive Option shall be
not less than 100% of the Market Value of Stock on the Grant Date, or not less than 110% of the Market Value of Stock on the Grant Date if the Optionee is a Ten Percent Owner. The price at which shares of Stock may be acquired under each
Nonstatutory Option shall not be so limited solely by reason of this Section. 
 (c) Option Period. No Incentive Option
may be exercised on or after the tenth anniversary of the Grant Date, or on or after the fifth anniversary of the Grant Date if the Optionee is a Ten Percent Owner. The Option period under each Nonstatutory Option shall not be so limited solely by
reason of this Section. 
 (d) Exercisability. An Option may be immediately exercisable or become exercisable in such
installments, cumulative or non-cumulative, as the Committee may determine. In the case of an Option not otherwise immediately exercisable in full, the Committee may Accelerate such Option in whole or in part at any time; provided, however,
that in the case of an Incentive Option, any such Acceleration of the Option would not cause the Option to fail to comply with the provisions of Section 422 of the Code or the Optionee consents to the Acceleration. 

(e) Method of Exercise. An Option may be exercised by the Optionee giving written notice, in the manner provided in
Section 17, specifying the number of shares of Stock with respect to which the Option is then being exercised. The notice shall be accompanied by payment in the form of cash or check payable to the order of the Company in an amount equal to the
exercise price of the shares of Stock to be purchased or, subject in each instance to the Committee’s approval, acting in its sole discretion, and to such conditions, if any, as the Committee may deem necessary to avoid adverse accounting
effects to the Company, 
 (i) by delivery to the Company of shares of Stock having a Market Value equal to the
exercise price of the shares to be purchased, or 
 (ii) by surrender of the Option as to all or part of the
shares of Stock for which the Option is then exercisable in exchange for shares of Stock having an aggregate Market Value equal to the difference between (1) the aggregate Market Value of the surrendered portion of the Option, and
(2) the aggregate exercise price under the Option for the surrendered portion of the Option, or 

  
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 (iii) unless prohibited by applicable law, by delivery to the Company of the
Optionee’s executed promissory note in the principal amount equal to the exercise price of the shares of Stock to be purchased and otherwise in such form as the Committee shall have approved, or 

(iv) by delivery of any other lawful means of consideration which the Committee may approve. 

If the Stock is traded on an established market, payment of any exercise price may also be made through and under the terms and conditions of any formal
cashless exercise program authorized by the Company entailing the sale of the Stock subject to an Option in a brokered transaction (other than to the Company). Receipt by the Company of such notice and payment in any authorized or combination of
authorized means shall constitute the exercise of the Option. Within thirty (30) days thereafter but subject to the remaining provisions of the Plan, the Company shall deliver or cause to be delivered to the Optionee or his agent a certificate
or certificates for the number of shares then being purchased. Such shares of Stock shall be fully paid and nonassessable. 

(f) Limit on Incentive Option Characterization. An Incentive Option shall be considered to be an Incentive Option only to the
extent that the number of shares of Stock for which the Option first becomes exercisable in a calendar year do not have an aggregate Market Value (as of the date of the grant of the Option) in excess of the “current limit”. The current
limit for any Optionee for any calendar year shall be $100,000 minus the aggregate Market Value at the date of grant of the number of shares of Stock available for purchase for the first time in the same year under each other Incentive Option
previously granted to the Optionee under the Plan, and under each other incentive stock option previously granted to the Optionee under any other incentive stock option plan of the Company and its Affiliates. Any shares of Stock which would cause
the foregoing limit to be violated shall be deemed to have been granted under a separate Nonstatutory Option, otherwise identical in its terms to those of the Incentive Option. 

(g) Notification of Disposition. Each person exercising any Incentive Option granted under the Plan shall be deemed to have
covenanted with the Company to report to the Company any disposition of the shares of Stock issued upon such exercise prior to the expiration of the holding periods specified by Section 422(a)(1) of the Code and, if and to the extent that the
realization of income in such a disposition imposes upon the Company federal, state, local or other withholding tax requirements, or any such withholding is required to secure for the Company an otherwise available tax deduction, to remit to the
Company an amount in cash sufficient to satisfy those requirements. 
 7.2. Stock Appreciation Rights. 

(a) Tandem or Stand-Alone. Stock Appreciation Rights may be granted in tandem with an Option (at or, in the case of a Nonstatutory
Option, after, the award of the Option), or alone and unrelated to an Option. Stock Appreciation Rights in tandem with an Option shall terminate to the extent that the related Option is exercised, and the related Option shall terminate to the extent
that the tandem Stock Appreciation Rights are exercised. 
 (b) Exercise Price. Stock Appreciation Rights shall have an
exercise price of not less than fifty percent (50%) of the Market Value of the Stock on the date of award, or in the case of Stock Appreciation Rights in tandem with Options, the exercise price of the related Option. 

  
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 (c) Other Terms. Except as the Committee may deem inappropriate or inapplicable in
the circumstances, Stock Appreciation Rights shall be subject to terms and conditions substantially similar to those applicable to a Nonstatutory Option. In addition, a Stock Appreciation Right related to an Option which can only be exercised during
limited periods following a Change of Control may entitle the Participant to receive an amount based upon the highest price paid or offered for Stock in any transaction relating to the Change of Control or paid during the thirty (30) day period
immediately preceding the occurrence of the Change of Control in any transaction reported in the stock market in which the Stock is normally traded. 
 7.3. Restricted Stock. 
 (a) Purchase Price. Shares of Restricted
Stock shall be issued under the Plan for such consideration, in cash, other property or services, or any combination thereof, as is determined by the Committee. 
 (b) Issuance of Certificates. Each Participant receiving a Restricted Stock Award, subject to subsection (c) below, shall be issued a stock certificate in respect of such shares of Restricted
Stock. Such certificate shall be registered in the name of such Participant, and, if applicable, shall bear an appropriate legend referring to the terms, conditions, and restrictions applicable to such Award substantially in the following form:

 The shares evidenced by this certificate are subject to the terms and conditions of KAYAK Software Corporation 2012 Equity
Incentive Plan and an Award Agreement entered into by the registered owner and KAYAK Software Corporation, copies of which will be furnished by KAYAK Software Corporation to the holder of the shares evidenced by this certificate upon written request
and without charge. 
 (c) Escrow of Shares. The Committee may require that the stock certificates evidencing shares of
Restricted Stock be held in custody by a designated escrow agent (which may but need not be the Company) until the restrictions thereon shall have lapsed, and that the Participant deliver a stock power, endorsed in blank, relating to the Stock
covered by such Award. 
 (d) Restrictions and Restriction Period. During the Restriction Period applicable to shares of
Restricted Stock, such shares shall be subject to limitations on transferability and a Risk of Forfeiture arising on the basis of such conditions related to the performance of services, Company or Affiliate performance or otherwise as the Committee
may determine and provide for in the applicable Award Agreement. Any such Risk of Forfeiture may be waived or terminated, or the Restriction Period shortened, at any time by the Committee on such basis as it deems appropriate. 

(e) Rights Pending Lapse of Risk of Forfeiture or Forfeiture of Award. Except as otherwise provided in the Plan or the applicable
Award Agreement, at all times prior to lapse of any Risk of Forfeiture applicable to, or forfeiture of, an Award of Restricted Stock, the Participant shall have all of the rights of a stockholder of the Company, including the right to vote, and the
right to receive any dividends with respect to, the shares of Restricted Stock (but 

  
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any dividends or other distributions payable in shares of Stock or other securities of the Company shall constitute additional Restricted Stock, subject to the same Risk of Forfeiture as the
shares of Restricted Stock in respect of which such shares of Stock or other securities are paid). The Committee, as determined at the time of Award, may permit or require the payment of cash dividends to be deferred and, if the Committee so
determines, reinvested in additional Restricted Stock to the extent shares of Stock are available under Section 4. 
 (f)
Lapse of Restrictions. If and when the Restriction Period expires without a prior forfeiture of the Restricted Stock, the certificates for such shares shall be delivered to the Participant promptly if not theretofore so delivered. 

7.4. Restricted Stock Units. 
 (a) Character. Each Restricted Stock Unit shall entitle the recipient to one or more shares of Stock at a close of such Restriction Period as the Committee may establish and subject to a Risk of
Forfeiture arising on the basis of such conditions relating to the performance of services, Company or Affiliate performance or otherwise as the Committee may determine and provide for in the applicable Award Agreement. Any such Risk of Forfeiture
may be waived or terminated, or the Restriction Period shortened, at any time by the Committee on such basis as it deems appropriate. 
 (b) Form and Timing of Payment. Payment of earned Restricted Stock Units shall be made in a single lump sum following the close of the applicable Restriction Period. At the discretion of the
Committee, Participants may be entitled to receive payments equivalent to any dividends declared with respect to Stock referenced in grants of Restricted Stock Units but only following the close of the applicable Restriction Period and then only if
the underlying Stock shall have been earned. Unless the Committee shall provide otherwise, any such dividend equivalents shall be paid, if at all, without interest or other earnings. 

7.5. Performance Units. 
 (a) Character. Each Performance Unit shall entitle the recipient to the value of a specified number of shares of Stock, over the initial value for such number of shares, if any, established by the
Committee at the time of grant, at the close of a specified Performance Period to the extent specified business objectives, including but not limited to Performance Goals, shall have been achieved. 

(b) Earning of Performance Units. The Committee shall set Performance Goals or other business objectives in its discretion which,
depending on the extent to which they are met within the applicable Performance Period, will determine the number and value of Performance Units that will be paid out to the Participant. After the applicable Performance Period has ended, the holder
of Performance Units shall be entitled to receive payout on the number and value of Performance Units earned by the Participant over the Performance Period, to be determined as a function of the extent to which the corresponding Performance Goals or
other business objectives have been achieved. 
 (c) Form and Timing of Payment. Payment of earned Performance Units
shall be made in a single lump sum following the close of the applicable Performance Period. At the discretion of the Committee, Participants may be entitled to receive any dividends declared with respect to Stock which have been earned in
connection with grants of Performance Units 

  
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which have been earned, but not yet distributed to Participants. The Committee may permit or, if it so provides at grant require, a Participant to defer such Participant’s receipt of the
payment of cash or the delivery of Stock that would otherwise be due to such Participant by virtue of the satisfaction of any requirements or goals with respect to Performance Units. If any such deferral election is required or permitted, the
Committee shall establish rules and procedures for such payment deferrals. 
 7.6. Stock Grants. Stock Grants shall be
awarded solely in recognition of significant prior or expected contributions to the success of the Company or its Affiliates, as an inducement to employment, in lieu of compensation otherwise already due and in such other limited circumstances as
the Committee deems appropriate. Stock Grants shall be made without forfeiture conditions of any kind. 
 7.7. Qualified
Performance-Based Awards. 
 (a) Purpose. The purpose of this Section 7.7 is to provide the Committee the
ability to qualify Awards as “performance-based compensation” under Section 162(m) of the Code. If the Committee, in its discretion, decides to grant an Award as a Qualified Performance-Based Award, the provisions of this
Section 7.7 will control over any contrary provision contained in the Plan. In the course of granting any Award, the Committee may specifically designate the Award as intended to qualify as a Qualified Performance-Based Award. However, no Award
shall be considered to have failed to qualify as a Qualified Performance-Based Award solely because the Award is not expressly designated as a Qualified Performance-Based Award, if the Award otherwise satisfies the provisions of this
Section 7.7 and the requirements of Section 162(m) of the Code applicable to “performance-based compensation.” 
 (b) Authority. All grants of Awards intended to qualify as Qualified Performance-Based Awards and the determination of the terms applicable thereto shall be made by the Committee. If not all of the
members thereof qualify as “outside directors” within the meaning of Section 162(m) of the Code, however, all grants of Awards intended to qualify as Qualified Performance-Based Awards and the determination of the terms applicable
thereto shall be made by a subcommittee of the Committee consisting of such of the members of the Committee as do so qualify. Any reference in this Section 7.7 to the Committee shall mean any such subcommittee if required under the preceding
sentence, and any action by such a subcommittee shall be considered the action of the Committee for purposes of the Plan. 
 (c)
Discretion of Committee with Respect to Qualified Performance-Based Awards. Any form of Award permitted under the Plan, other than a Stock Grant, may be granted as a Qualified Performance-Based Award. Stock Rights may be granted as Qualified
Performance-Based Awards in accordance with Section 7.1 or Section 7.2, as appropriate, except that the exercise price of any Option or Stock Appreciation Right intended to qualify as a Qualified Performance-Based Award shall in no event
be less that the Market Value of the Stock on the date of grant, and may become exercisable based on continued service, on satisfaction of Performance Goals, or on a combination thereof. Each other Award intended to qualify as a Qualified
Performance-Based Award, such as Restricted Stock, Restricted Stock Units, or Performance Units, shall be subject to satisfaction of one or more Performance Goals except as otherwise provided in this Section 7.7. The Committee will have full
discretion to select the length of any applicable Restriction Period or Performance Period, the kind and/or level of the applicable Performance Goal, and whether the Performance Goal is to apply to the Company, a subsidiary of the Company or any
division or business unit or to the individual. Any 

  
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Performance Goal or Goals applicable to Qualified Performance-Based Awards shall be objective, shall be established not later than ninety (90) days after the beginning of any applicable
Performance Period (or at such other date as may be required or permitted for “performance-based compensation” under Section 162(m) of the Code) and shall otherwise meet the requirements of Section 162(m) of the Code, including
the requirement that the outcome of the Performance Goal or Goals be substantially uncertain (as defined for purposes of Section 162(m) of the Code) at the time established. 

(d) Payment of Qualified Performance-Based Awards. A Participant will be eligible to receive payment under a Qualified
Performance-Based Award which is subject to achievement of a Performance Goal or Goals only if the applicable Performance Goal or Goals are achieved within the applicable Performance Period, as determined by the Committee, provided, that a
Qualified Performance-Based Award may be deemed earned as a result of death, becoming disabled, or in connection with a Change of Control if otherwise provided in the Plan or the applicable Award Agreement even if the Award would not constitute
“performance-based compensation” under Section 162(m) of the Code following the occurrence of such an event. In determining the actual size of an individual Qualified Performance-Based Award, the Committee may reduce or eliminate the
amount of the Qualified Performance-Based Award earned for the Performance Period, if in its sole and absolute discretion it deems such reduction or elimination is appropriate. 

(e) Limitation on Adjustments for Certain Events. No adjustment of any Qualified Performance-Based Award pursuant to
Section 8 shall be made except on such basis, if any, as will not cause such Award to provide other than “performance-based compensation” within the meaning of Section 162(m) of the Code. 

(f) Definitions. For purposes of the Plan 
 (i) Performance Criteria means the criteria that the Committee selects for purposes of establishing the Performance Goal or Performance Goals for a Participant for a Performance Period. The
Performance Criteria used to establish Performance Goals are limited to: (i) cash flow (before or after dividends), (ii) earnings per share (including, without limitation, earnings before interest, taxes, depreciation and amortization),
(iii) stock price, (iv) return on equity, (v) stockholder return or total stockholder return, (vi) return on capital (including, without limitation, return on total capital or return on invested capital), (vii) return on
investment, (viii) return on assets or net assets, (ix) market capitalization, (x) economic value added, (xi) debt leverage (debt to capital), (xii) revenue, (xiii) sales or net sales, (xiv) backlog,
(xv) income, pre-tax income or net income, (xvi) operating income or pre-tax profit, (xvii) operating profit, net operating profit or economic profit, (xviii) gross margin, operating margin or profit margin, (xix) return on
operating revenue or return on operating assets, (xx) cash from operations, (xxi) operating ratio, (xxii) operating revenue, (xxiii) market share improvement, (xxiv) general and administrative expenses and
(xxv) customer service. 
 (ii) Performance Goals means, for a Performance Period, the written goal
or goals established by the Committee for the Performance Period based upon one or more of the Performance Criteria. The Performance Goals may be expressed in terms of overall Company performance or the performance

  
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of a division, business unit, subsidiary, or an individual, either individually, alternatively or in any combination, applied to either the Company as a whole or to a business unit or Affiliate,
either individually, alternatively or in any combination, and measured either quarterly, annually or cumulatively over a period of years, on an absolute basis or relative to a pre-established target, to previous years’ results or to a
designated comparison group, in each case as specified by the Committee. The Committee will objectively define the manner of calculating the Performance Goal or Goals it selects to use for such Performance Period for such Participant, including
whether or to what extent there shall not be taken into account any of the following events that occurs during a performance period: (i) asset write-downs, (ii) litigation, claims, judgments or settlements, (iii) the effect of changes
in tax law, accounting principles or other such laws or provisions affecting reported results, (iv) accruals for reorganization and restructuring programs and (v) any extraordinary, unusual, non-recurring or non-comparable items
(A) as described in Accounting Standard Codification Section 225-20, (B) as described in management’s discussion and analysis of financial condition and results of operations appearing in the Company’s Annual Report to
stockholders for the applicable year, or (C) publicly announced by the Company in a press release or conference call relating to the Company’s results of operations or financial condition for a completed quarterly or annual fiscal period.

 7.8. Awards to Participants Outside the United States. The Committee may modify the terms of any Award under the Plan
granted to a Participant who is, at the time of grant or during the term of the Award, resident or primarily employed outside of the United States in any manner deemed by the Committee to be necessary or appropriate in order that the Award shall
conform to laws, regulations, and customs of the country in which the Participant is then resident or primarily employed, or so that the value and other benefits of the Award to the Participant, as affected by foreign tax laws and other restrictions
applicable as a result of the Participant’s residence or employment abroad, shall be comparable to the value of such an Award to a Participant who is resident or primarily employed in the United States. The Committee may establish supplements
to, or amendments, restatements, or alternative versions of the Plan for the purpose of granting and administrating any such modified Award. No such modification, supplement, amendment, restatement or alternative version may increase the share limit
of Section 4. 
 8. Adjustment Provisions 
 8.1. Adjustment for Corporate Actions. All of the share numbers set forth in the Plan reflect the capital structure of the Company as of the Effective Date. If subsequent to the Effective Date the
outstanding shares of Stock (or any other securities covered by the Plan by reason of the prior application of this Section) are increased, decreased, or exchanged for a different number or kind of shares or other securities, or if additional shares
or new or different shares or other securities are distributed with respect to shares of Stock, as a result of a reorganization, recapitalization, reclassification, stock dividend, stock split, reverse stock split, or other similar distribution with
respect to such shares of Stock, an appropriate and proportionate adjustment will be made in (i) the maximum numbers and kinds of shares provided in Section 4, (ii) the numbers and kinds of shares or other securities subject to the
then outstanding Awards, (iii) the exercise price for each share or other unit of any other securities subject to then outstanding Stock Rights (without change in the aggregate exercise price as to which such Rights remain exercisable), and
(iv) the repurchase price of each share of Restricted Stock then subject to a Risk of Forfeiture in the form of a Company repurchase right. 

  
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 8.2. Adjustment of Awards Upon the Occurrence of Certain Unusual or Nonrecurring
Events. In the event of any corporate action not specifically covered by the preceding Section, including but not limited to an extraordinary cash distribution on Stock, a corporate separation or other reorganization or liquidation, the
Committee may make such adjustment of outstanding Awards and their terms, if any, as it, in its sole discretion, may deem equitable and appropriate in the circumstances. The Committee also may make adjustments in the terms and conditions of, and the
criteria included in, Awards in recognition of unusual or nonrecurring events (including, without limitation, the events described in this Section) affecting the Company or the financial statements of the Company or of changes in applicable laws,
regulations, or accounting principles, whenever the Committee determines that such adjustments are appropriate in order to prevent dilution or enlargement of the benefits or potential benefits intended to be made available under the Plan.

 8.3. Related Matters. Any adjustment in Awards made pursuant to Section 8.1 or 8.2 shall be determined and made,
if at all, by the Committee, acting in its sole discretion, and shall include any correlative modification of terms, including of Stock Right exercise prices, rates of vesting or exercisability, Risks of Forfeiture, applicable repurchase prices for
Restricted Stock, and Performance Goals and other business objectives which the Committee may deem necessary or appropriate so as to ensure the rights of the Participants in their respective Awards are not substantially diminished nor enlarged as a
result of the adjustment and corporate action other than as expressly contemplated in this Section 8. The Committee, in its discretion, may determine that no fraction of a share of Stock shall be purchasable or deliverable upon exercise, and in
that event if any adjustment hereunder of the number of shares of Stock covered by an Award would cause such number to include a fraction of a share of Stock, such number of shares of Stock shall be adjusted to the nearest smaller whole number of
shares. No adjustment of an Option exercise price per share pursuant to Sections 8.1 or 8.2 shall result in an exercise price which is less than the par value of the Stock. 
 8.4. Transactions. 
 (a) Treatment of Stock Rights. In a
Transaction, the Committee may take any one or more of the following actions as to all or any (or any portion of) outstanding Stock Rights. 
 (1) Provide that such Stock Rights shall be assumed, or substantially equivalent rights shall be provided in substitution therefore, by the acquiring or succeeding entity (or an affiliate thereof).

 (2) Upon written notice to the holders, provide that the holders’ unexercised Stock Rights will
terminate immediately prior to the consummation of such Transaction unless, in the case of Stock Rights then exercisable, such Rights are exercised within a specified period following the date of such notice. 

(3) Provide that outstanding Stock Rights shall become exercisable in whole or in part prior to or upon the Transaction.

  
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 (4) Provide for cash payments, net of applicable tax withholdings, to be
made to holders equal to the excess, if any, of (A) the acquisition price times the number of shares of Stock subject to the Stock Right (to the extent the exercise price does not exceed the acquisition price) over (B) the aggregate
exercise price for all such shares of Stock subject to the Stock Right, in exchange for the termination of such Stock Right; provided, that if the acquisition price does not exceed the exercise price of any such Stock Right, the Committee may cancel
that Stock Right without the payment of any consideration therefore prior to or upon the Transaction. For this purpose, “acquisition price” means the amount of cash, and market value of any other consideration, received in payment
for a share of Stock surrendered in a Transaction. 
 (5) Provide that, in connection with a liquidation or
dissolution of the Company, Stock Rights shall convert into the right to receive liquidation proceeds net of the exercise price thereof and any applicable tax withholdings. 

(6) Any combination of the foregoing. 
 For purposes of paragraph (1) above, a Stock Right shall be considered assumed, or a substantially equivalent right shall be considered to have been provided in substitution therefor, if following
consummation of the Transaction the Stock Right confers the right to purchase or receive the value (after the applicable exercise price) of the consideration received as a result of the Transaction by holders of Stock for each share of Stock held
immediately prior to the consummation of the Transaction for each share of Stock subject to the Right immediately prior to the consummation of the Transaction; provided, however, that if holders were offered a choice of consideration, the
relevant consideration shall be the type of consideration chosen by the holders of a majority of the outstanding shares of Stock; and provided, further, however, that if the consideration received as a result of the Transaction is not solely
common stock (or its equivalent) of the acquiring or succeeding entity (or an affiliate thereof), the Committee may provide for the consideration to be received upon the exercise of the Stock Right to consist of or be based on solely common stock
(or its equivalent) of the acquiring or succeeding entity (or an affiliate thereof) equivalent in value to the per share consideration received by holders of outstanding shares of Stock as a result of the Transaction. In all cases, including in
determining any acquisition price under paragraph (4) above, the consideration received in any Transaction need not take into account any contingent consideration except on such basis as the Committee may determine. 

(b) Treatment of Other Awards. As to outstanding Awards other than Stock Rights, upon the occurrence of a Transaction other than a
liquidation or dissolution of the Company which is not part of another form of Transaction, the repurchase and other rights of the Company under each such Award shall inure to the benefit of the Company’s successor and shall, unless the
Committee determines otherwise, apply to the cash, securities or other property which the Stock was converted into or exchanged for pursuant to such Transaction in the same manner and to the same extent as they applied to the Award. Upon the
occurrence of a Transaction involving a liquidation or dissolution of the Company which is not part of another form of Transaction, except to the extent specifically provided to the contrary in the instrument evidencing any Award or any other
agreement between a Participant and the Company, all Risks of Forfeiture and Performance Goals or other business objectives, where otherwise applicable to any such Awards, shall automatically be deemed terminated or satisfied, as applicable.

  
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 (c) Related Matters. In taking any of the actions permitted under this
Section 8.4, the Committee shall not be obligated to treat all Awards, all Awards held by a Participant, or all Awards of the same type, identically. Any determinations required to carry out the foregoing provisions of this Section 8.4,
including but not limited to the market value of other consideration received by holders of Stock in a Transaction and whether substantially equivalent Rights have been substituted, shall be made by the Committee acting in its sole discretion. In
connection with any action or actions taken by the Committee in respect of Awards and in connection with a Transaction, the Committee may require such acknowledgements of satisfaction and releases from Participants as it may determine. 

(d) Effect of a Transaction which is a Change of Control. By definition, a Transaction may or may not constitute a Change of
Control. That a Transaction is also a Change of Control shall not by itself limit the Committee’s discretion under this Section 8, but any Acceleration or other vesting of outstanding Awards required under Section 9 shall apply prior
to determining the action or actions available to the Committee in the Transaction under this Section 8 in respect of each outstanding Award. 
 9. Change of Control 
 Except as otherwise provided below, upon the
occurrence of a Change of Control: 
 (a) the following provisions of this Section 9(a) shall apply solely to Awards that
are Initial Awards: 
 (1) such Stock Rights not already exercisable in full shall Accelerate with respect to
fifty percent (50%) of the shares for which such Stock Rights are not then exercisable; 
 (2) any Risk of
Forfeiture applicable to such Restricted Stock and Restricted Stock Units which is not based on achievement of Performance Goals or other business objectives shall lapse with respect to fifty percent (50%) of such Restricted Stock and
Restricted Stock Units still subject to such Risk of Forfeiture immediately prior to the Change of Control; 

(3) all such outstanding Awards of Restricted Stock and Restricted Stock Units conditioned on the achievement of
Performance Goals or other business objectives and the target payout opportunities attainable under outstanding Performance Units shall be deemed to have been satisfied as of the effective date of the Change of Control as to fifty percent
(50%) of the shares as to which the relevant Performance Goals or other business objectives had not been achieved prior to the Change of Control and as to which the applicable Restriction Period or Performance Period had not then elapsed. All
such Awards of Performance Units and Restricted Stock Units shall be paid to the extent earned to Participants in accordance with their terms within thirty (30) days following the effective date of the Change of Control; and 

  
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 (b) the following provisions of this Section 9(b) shall apply to every Award (whether
or not such Award is an Initial Award): with respect to any Participant, the Awards held by such Participant shall Accelerate in full (i) upon such Participant’s employment or other association with the Company and its Affiliates being
terminated by the Company without Cause or by such Participant for Good Reason, in either case within one year after the date such Change of Control is determined to have occurred, or (ii) upon the date such Change in Control is determined to
have occurred if such Participant’s employment or other association with the Company and its Affiliates is terminated by the Company without Cause or by such Participant for Good Reason, in either case, within sixty (60) days prior to the
date on which such Change of Control is determined to have occurred and the Committee determines, in its sole discretion, that such termination or circumstance giving rise to such Good Reason was at the request of a third party that took actions to
effect the Change of Control or otherwise arose in connection with or anticipation of such Change of Control. 
 None of the foregoing shall
apply, however, (i) in the case of any Award pursuant to an Award Agreement requiring other or additional terms upon a Change of Control (or similar event), or (ii) if specifically prohibited under applicable laws, or by the rules and
regulations of any governing governmental agencies or national securities exchanges. Nor shall the foregoing apply in the case of a Qualified Performance-Based Award except to the extent the foregoing would not interfere with the qualification of
the Award under 162(m) of the Code at any time prior to a Change of Control (so that, for example, if a Change of Control occurs but does not constitute a change of control within the meaning of Section 162(m) of the Code, there shall be no
Acceleration of any Qualified Performance-Based Award pursuant to this Section 9, but if the Change of Control does constitute a change of control within the meaning of Section 162(m) of the Code, then the Award shall Accelerate to the
extent provided above regardless of whether it thereafter ceases to qualify as a Qualified Performance-Based Award). 
 10. Settlement of
Awards 
 10.1. In General. Awards of Restricted Stock shall be settled in accordance with their terms. All other
Awards may be settled in cash or Stock, or a combination thereof, as determined by the Committee at or after grant and subject to any contrary Award Agreement. The Committee may not require settlement of any Award in Stock pursuant to the
immediately preceding sentence to the extent issuance of such Stock would be prohibited or unreasonably delayed by reason of any other provision of the Plan. 
 10.2. Violation of Law. Notwithstanding any other provision of the Plan or the relevant Award Agreement, if, at any time, in the reasonable opinion of the Company, the issuance of shares of Stock
covered by an Award may constitute a violation of law, then the Company may delay such issuance and the delivery of a certificate for such shares until (i) approval shall have been obtained from such governmental agencies, other than the
Securities and Exchange Commission, as may be required under any applicable law, rule, or regulation and (ii) in the case where such issuance would constitute a violation of a law administered by or a regulation of the Securities and Exchange
Commission, one of the following conditions shall have been satisfied: 
 (a) the shares of Stock are at the time of the issue
of such shares effectively registered under the Securities Act of 1933, as amended; or 

  
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 (b) the Company shall have determined, on such basis as it deems appropriate (including an
opinion of counsel in form and substance satisfactory to the Company) that the sale, transfer, assignment, pledge, encumbrance or other disposition of such shares does not require registration under the Securities Act of 1933, as amended or any
applicable State securities laws. 
 The Company shall make all reasonable efforts to bring about the occurrence of said events. 

10.3. Corporate Restrictions on Rights in Stock. Any Stock to be issued pursuant to Awards granted under the Plan shall be subject
to all restrictions upon the transfer thereof which may be now or hereafter imposed by the certificate of incorporation and by-laws of the Company. Whenever Stock is to be issued pursuant to an Award, if the Committee so directs at or after grant,
the Company shall be under no obligation to issue such shares until such time, if ever, as the recipient of the Award (and any person who exercises any Option, in whole or in part), shall have become a party to and bound by the Stockholders’
Agreement, if any. In the event of any conflict between the provisions of this Plan and the provisions of the Stockholders’ Agreement, the provisions of the Stockholders’ Agreement shall control except as required to fulfill the intention
that any Incentive Option qualify as such, but insofar as possible the provisions of the Plan and such Agreement shall be construed so as to give full force and effect to all such provisions. 

10.4. Investment Representations. The Company shall be under no obligation to issue any shares of Stock covered by any Award
unless the shares to be issued pursuant to Awards granted under the Plan have been effectively registered under the Securities Act of 1933, as amended, or the Participant shall have made such written representations to the Company (upon which the
Company believes it may reasonably rely) as the Company may deem necessary or appropriate for purposes of confirming that the issuance of such shares will be exempt from the registration requirements of that Act and any applicable state securities
laws and otherwise in compliance with all applicable laws, rules and regulations, including but not limited to that the Participant is acquiring the shares for his or her own account for the purpose of investment and not with a view to, or for sale
in connection with, the distribution of any such shares. 
 10.5. Registration. If the Company shall deem it necessary or
desirable to register under the Securities Act of 1933, as amended, or other applicable statutes any shares of Stock issued or to be issued pursuant to Awards granted under the Plan, or to qualify any such shares of Stock for exemption from the
Securities Act of 1933, as amended or other applicable statutes, then the Company shall take such action at its own expense. The Company may require from each recipient of an Award, or each holder of shares of Stock acquired pursuant to the Plan,
such information in writing for use in any registration statement, prospectus, preliminary prospectus or offering circular as is reasonably necessary for that purpose and may require reasonable indemnity to the Company and its officers and directors
from that holder against all losses, claims, damage and liabilities arising from use of the information so furnished and caused by any untrue statement of any material fact therein or caused by the omission to state a material fact required to be
stated therein or necessary to make the statements therein not misleading in the light of the circumstances under which they were made. In addition, the Company may require of any such person that he or she agree that, without the prior written
consent of the Company or the managing underwriter in any public offering of shares of Stock, he or she will not sell, make any short sale of, loan, grant any option for the purchase of, pledge or otherwise encumber, or otherwise dispose of, any
shares of Stock during the 180 day period commencing on the effective date of the registration statement relating to the underwritten public offering of securities. 

  
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Without limiting the generality of the foregoing provisions of this Section 10.5, if in connection with any underwritten public offering of securities of the Company the managing underwriter
of such offering requires that the Company’s directors and officers enter into a lock-up agreement containing provisions that are more restrictive than the provisions set forth in the preceding sentence, then (a) each holder of shares of
Stock acquired pursuant to the Plan (regardless of whether such person has complied or complies with the provisions of clause (b) below) shall be bound by, and shall be deemed to have agreed to, the same lock-up terms as those to which the
Company’s directors and officers are required to adhere; and (b) at the request of the Company or such managing underwriter, each such person shall execute and deliver a lock-up agreement in form and substance equivalent to that which is
required to be executed by the Company’s directors and officers. 
 10.6. Placement of Legends; Stop Orders; etc.
Each share of Stock to be issued pursuant to Awards granted under the Plan may bear a reference to the investment representations made in accordance with Section 10.4 in addition to any other applicable restrictions under the Plan, the terms of
the Award and if applicable under the Stockholders’ Agreement and to the fact that no registration statement has been filed with the Securities and Exchange Commission in respect to such shares of Stock. All certificates for shares of Stock or
other securities delivered under the Plan shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of any stock exchange upon which the Stock is
then listed, and any applicable federal or state securities law, and the Committee may cause a legend or legends to be placed on any such certificates to make appropriate reference to such restrictions. 

10.7. Tax Withholding. Whenever shares of Stock are issued or to be issued pursuant to Awards granted under the Plan, the Company
shall have the right to require the recipient to remit to the Company an amount sufficient to satisfy federal, state, local or other withholding tax requirements if, when, and to the extent required by law (whether so required to secure for the
Company an otherwise available tax deduction or otherwise) prior to the delivery of any certificate or certificates for such shares. The obligations of the Company under the Plan shall be conditional on satisfaction of all such withholding
obligations and the Company shall, to the extent permitted by law, have the right to deduct any such taxes from any payment of any kind otherwise due to the recipient of an Award. However, in such cases Participants may elect, subject to the
approval of the Committee, acting in its sole discretion, to satisfy an applicable withholding requirement, in whole or in part, by having the Company withhold shares of Stock to satisfy their tax obligations. Participants may only elect to have
shares of Stock withheld having a Market Value on the date the tax is to be determined equal to the minimum statutory total tax which could be imposed on the transaction. All elections shall be irrevocable, made in writing, signed by the
Participant, and shall be subject to any restrictions or limitations that the Committee deems appropriate. 
 10.8. Company
Charter and By-Laws; Other Company Policies. This Plan and all Awards granted hereunder are subject to the certificate of incorporation and by-laws of the Company, as they may be amended from time to time, and all other Company policies duly
adopted by the Board, the Committee or any other committee of the Board as in effect from time to time regarding the acquisition, ownership or sale of Stock by employees and other service providers, including, without limitation, policies intended
to limit the potential for insider trading and to avoid or recover compensation payable or paid on the basis of inaccurate financial results or statements, employee conduct, and other similar events. 

  
 - 21 -

 11. Reservation of Stock 
 The Company shall at all times during the term of the Plan and any outstanding Awards granted hereunder reserve or otherwise keep available such number of shares of Stock as will be sufficient to satisfy
the requirements of the Plan (if then in effect) and the Awards and shall pay all fees and expenses necessarily incurred by the Company in connection therewith; provided, however, that in no event shall the Committee grant any Award
for Class A Common Stock or Class B Common Stock to the extent that there are then an insufficient number of shares of such Stock, as applicable, authorized and available for issuance in accordance with the Company’s Certificate of
Incorporation. 
 12. Limitation of Rights in Stock; No Special Service Rights 

A Participant shall not be deemed for any purpose to be a stockholder of the Company with respect to any of the shares of Stock subject to
an Award, unless and until a certificate shall have been issued therefor and delivered to the Participant or his agent. Any Stock to be issued pursuant to Awards granted under the Plan shall be subject to all restrictions upon the transfer thereof
which may be now or hereafter imposed by the certificate of incorporation and the by-laws of the Company. Nothing contained in the Plan or in any Award Agreement shall confer upon any recipient of an Award any right with respect to the continuation
of his or her employment or other association with the Company (or any Affiliate), or interfere in any way with the right of the Company (or any Affiliate), subject to the terms of any separate employment or consulting agreement or provision of law
or certificate of incorporation or by-laws to the contrary, at any time to terminate such employment or consulting agreement or to increase or decrease, or otherwise adjust, the other terms and conditions of the recipient’s employment or other
association with the Company and its Affiliates. 
 13. Unfunded Status of Plan 

The Plan is intended to constitute an “unfunded” plan for incentive compensation, and the Plan is not intended to constitute a
plan subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended. With respect to any payments not yet made to a Participant by the Company, nothing contained herein shall give any such Participant any rights that
are greater than those of a general creditor of the Company. In its sole discretion, the Committee may authorize the creation of trusts or other arrangements to meet the obligations created under the Plan to deliver Stock or payments with respect to
Stock Rights and other Awards hereunder, provided, however, that the existence of such trusts or other arrangements is consistent with the unfunded status of the Plan. 
 14. Nonexclusivity of the Plan 
 Neither the adoption of the Plan by the
Board nor any action taken in connection with the adoption or operation of the Plan shall be construed as creating any limitations on the power of the Board to adopt such other incentive arrangements as it may deem desirable, including without
limitation, the granting of stock options and restricted stock other than under the Plan, and such arrangements may be either applicable generally or only in specific cases. 

  
 - 22 -

 15. No Guarantee of Tax Consequences 

Neither the Company nor any Affiliate, nor any director, officer, agent, representative or employee of either, guarantees to the
Participant or any other person any particular tax consequences as a result of the grant of, exercise of rights under, or payment in respect of an Award, including but not limited to that an Option granted as an Incentive Option has or will qualify
as an “incentive stock option” within the meaning of Section 422 of the Code or that the provisions and penalties of Section 409A of the Code, pertaining non-qualified plans of deferred compensation, will or will not apply.

 16. Termination and Amendment of the Plan 
 16.1. Termination or Amendment of the Plan. Subject to the limitations contained in Section 16.3 below, including specifically the requirement of stockholder approval if applicable, the Board
may at any time terminate the Plan or make such modifications of the Plan as it shall deem advisable. Unless the Board otherwise expressly provides, no amendment of the Plan shall affect the terms of any Award outstanding on the date of such
amendment. 
 16.2. Termination or Amendment of Outstanding Awards; Assumptions. Subject to the limitations contained in
Section 16.3 below, including specifically the requirement of stockholder approval if applicable, the Committee may at any time: 
 (a) amend the terms of any Award theretofore granted, prospectively or retroactively, provided that the Award as amended is consistent with the terms of the Plan; 

(b) accept the cancellation of outstanding Awards or of outstanding stock options or other equity-based compensation awards granted by
another issuer in return for the grant of new Awards for the same or a different number of shares of Stock and on the same or different terms and conditions (including but not limited to the exercise price of any Option); and 

(c)(i) offer to buy out for a payment in cash or cash equivalents, or in exchange for another Award, any Award previously granted or
(ii) authorize the recipient of an Award to elect to cash out an Award previously granted, in either case at such time and based upon such terms and conditions as the Committee shall establish. 

16.3. Limitations on Amendments, Etc. 
 Without the approval of the Company’s stockholders, no amendment or modification of the Plan by the Board may (i) increase the number of shares of Stock which may be issued under the Plan,
(ii) change the description of the persons eligible for Awards, or (iii) effect any other change for which stockholder approval is required by law or the rules of any relevant stock exchange. Furthermore, except in connection with a
corporate transaction involving the Company, the terms of outstanding Stock Rights may not be amended to reduce their exercise price, nor may outstanding Stock Rights be cancelled in exchange for cash, Stock Rights with exercise prices that are less
than the exercise prices of the original Stock Rights, or other Awards, without stockholder approval. 

  
 - 23 -

 No amendment or modification of the Plan by the Board, or of an outstanding Award by the
Committee, shall impair the rights of the recipient of any Award outstanding on the date of such amendment or modification or such Award, as the case may be, without the Participant’s consent; provided, however, that no such consent
shall be required if (i) the Board or Committee, as the case may be, determines in its sole discretion and prior to the date of any Change of Control that such amendment or alteration either is required or advisable in order for the Company,
the Plan or the Award to satisfy any law or regulation, including without limitation the provisions of Section 409A of the Code, or to meet the requirements of or avoid adverse financial accounting consequences under any accounting standard, or
(ii) the Board or Committee, as the case may be, determines in its sole discretion and prior to the date of any Change of Control that such amendment or alteration is not reasonably likely to significantly diminish the benefits provided under
the Award, or that any such diminution has been adequately compensated. 
 17. Notices and Other Communications 

Any notice, demand, request or other communication hereunder to any party shall be deemed to be sufficient if contained in a written
instrument delivered in person or duly sent by first class registered, certified or overnight mail, postage prepaid, or telecopied with a confirmation copy by regular, certified or overnight mail, addressed or telecopied, as the case may be,
(i) if to the recipient of an Award, at his or her residence address last filed with the Company and (ii) if to the Company, at its principal place of business, addressed to the attention of its Treasurer, or to such other address or
telecopier number, as the case may be, as the addressee may have designated by notice to the addressor. All such notices, requests, demands and other communications shall be deemed to have been received: (i) in the case of personal delivery, on
the date of such delivery; (ii) in the case of mailing, when received by the addressee; and (iii) in the case of facsimile transmission, when confirmed by facsimile machine report. 
 18. Administrative Provisions 
 Nothing contained in the Plan shall require
the issuance or delivery of certificates for any period during which the Company has elected to maintain or caused to be maintained the evidence of ownership of its shares of Stock, either generally or in the case of Stock acquired pursuant to
Awards, by book entry, and all references herein to such actions or to certificates shall be interpreted accordingly in light of the systems maintained for that purpose. Furthermore, any reference herein to actions to be taken or notices (including
of grants of Awards) to be provided in writing or pursuant to specific procedures may be satisfied by means of and pursuant to any electronic or automated voice response systems the Company may elect to establish for such purposes, either by itself
or through the services of a third party, for the period such systems are in effect. 
 19. Governing Law 

It is intended that all Awards shall be granted and maintained on a basis which ensures they are exempt from, or otherwise compliant with,
the requirements of Section 409A of the Code and the Plan shall be governed, interpreted and enforced consistent with such intent. Neither the Committee nor the Company, nor any of its Affiliates or its or their officers, employees, agents, or
representatives, shall have any liability or responsibility for any adverse federal, state or local tax consequences and penalty taxes which may result the grant or settlement of any Award on a basis contrary to the provisions of Section 409A
of the Code or comparable provisions of any applicable state or local income tax laws. The Plan and all Award Agreements and actions taken thereunder otherwise shall be governed, interpreted and enforced in accordance with the laws of the
Commonwealth of Massachusetts, without regard to the conflict of laws principles thereof. 

  
 - 24 -Form of Indemnification Agreement

 Exhibit 10.59 
 KAYAK SOFTWARE CORPORATION 
 DIRECTOR INDEMNIFICATION AGREEMENT

 This Agreement is made as of the      day of 2012, by and between KAYAK Software Corporation, a
Delaware corporation (the “Corporation”), and                      (the “Indemnitee”), a director or officer of the
Corporation (the “Agreement”). 
 WHEREAS, it is essential to the Corporation to retain and attract as directors and officers
the most capable persons available, and 
 WHEREAS, the increase in corporate litigation subjects directors and officers to expensive litigation
risks, and 
 WHEREAS, it is now and has always been the policy of the Corporation to indemnify its directors and officers, and 

WHEREAS, the Corporation desires the Indemnitee to serve, or continue to serve, as a director or officer of the Corporation. 

NOW THEREFORE, the Corporation and the Indemnitee do hereby agree as follows: 
 1. Definitions. As used in this Agreement: 
 (a) The term
“Proceeding” shall include any threatened, pending or completed action, suit, arbitration, alternative dispute resolution proceeding, administrative hearing or other proceeding, whether brought by or in the right of the Corporation
or otherwise and whether of a civil, criminal, administrative or investigative nature, and any appeal therefrom. 
 (b) The term
“Corporate Status” shall mean the status of a person who is or was, or has agreed to become, a director or officer of the Corporation, or is or was serving, or has agreed to serve, at the request of the Corporation, as a director,
officer, fiduciary, partner, trustee, member, employee or agent of, or in a similar capacity with, another corporation, partnership, joint venture, trust, limited liability company or other enterprise. 

(c) The term “Expenses” shall include, without limitation, attorneys’ fees, retainers, court costs, transcript
costs, fees and expenses of experts, travel expenses, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees and other disbursements or expenses of the types customarily incurred in connection with
investigations, judicial or administrative proceedings or appeals, but shall not include the amount of judgments, fines or penalties against Indemnitee or amounts paid in settlement in connection with such matters. 

(d) The term “Change in Control” shall mean the occurrence of any one of the following: 

(i) Any individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as
amended (the “Exchange Act”)) (a “Person”), other than those Persons in control of the Corporation as of the date of this Agreement or a trustee or other fiduciary holding securities under an employee benefit plan
of the Corporation or a corporation owned directly or indirectly by the stockholders of the Corporation in substantially the same proportions as their ownership of stock of the Corporation, becomes the beneficial owner (as defined in Rule 13d-3
under the Exchange Act), directly or indirectly, of securities of the Corporation representing 25% or more of the combined voting power of the Corporation’s then outstanding securities; 

(ii) A change in the Board of Directors of the Corporation (the “Board”) such that individuals who as of the date of
this Agreement constitute the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the Board; provided, however, that any individual becoming a director subsequent to the date of this Agreement
whose election or nomination for election by the Corporation’s stockholders was approved by a vote of at least a majority of the directors then comprising the Incumbent Board shall be considered as though such individual were a member of the
Incumbent Board; 

 (iii) The consummation of: (a) a plan of complete liquidation of the Corporation;
(b) an agreement for the sale or disposition of all or substantially all of the Corporation’s assets; or (c) a merger, consolidation or reorganization of the Corporation with or involving any other corporation, other than a merger,
consolidation or reorganization that would result in the voting securities of the Corporation outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the
surviving entity) at least 50% of the combined voting power of the voting securities of the Corporation (or such surviving entity) outstanding immediately after such merger, consolidation or reorganization; or 

(iv) The occurrence of any other event that the Board determines by a duly approved resolution constitutes a Change in Control.

 (e) The term “Independent Counsel” shall mean a law firm, or a member of a law firm, that is experienced in
matters of corporation law and neither currently is, nor in the past five years has been, retained to represent: (i) the Corporation or the Indemnitee in any matter material to either such party or (ii) any other party to the Proceeding
giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who, under the applicable standards of professional conduct then prevailing, would have a
conflict of interest in representing either the Corporation or the Indemnitee in an action to determine the Indemnitee’s rights under this Agreement. 
 (f) References to “other enterprise” shall include employee benefit plans; references to “fines” shall include any excise tax assessed with respect to any employee
benefit plan; references to “serving at the request of the Corporation” shall include any service as a director, officer, employee or agent of the Corporation which imposes duties on, or involves services by, such director, officer,
employee, or agent with respect to an employee benefit plan, its participants, or beneficiaries; and a person who acted in good faith and in a manner such person reasonably believed to be in the interests of the participants and beneficiaries of an
employee benefit plan shall be deemed to have acted in a manner “not opposed to the best interests of the Corporation” as referred to in this Agreement. 
 2. Indemnity of Indemnitee. Subject to Sections 5, 6 and 8, the Corporation shall indemnify the Indemnitee in connection with any Proceeding as to which the Indemnitee is, was or is threatened to
be made a party (or is otherwise involved) by reason of the Indemnitee’s Corporate Status, to the fullest extent permitted by law (as such may be amended from time to time). In furtherance of the foregoing and without limiting the generality
thereof: 
 (a) Indemnification in Third-Party Proceedings. The Corporation shall indemnify the Indemnitee in accordance
with the provisions of this Section 2(a) if the Indemnitee was or is a party to or threatened to be made a party to or otherwise involved in any Proceeding (other than a Proceeding by or in the right of the Corporation to procure a judgment in
its favor or a Proceeding referred to in Section 5 below) by reason of the Indemnitee’s Corporate Status or by reason of any action alleged to have been taken or omitted in connection therewith, against all Expenses, judgments, fines,
penalties and amounts paid in settlement actually and reasonably incurred by or on behalf of the Indemnitee in connection with such Proceeding, if the Indemnitee acted in good faith and in a manner which the Indemnitee reasonably believed to be in,
or not opposed to, the best interests of the Corporation and, with respect to any criminal Proceeding, had no reasonable cause to believe that his or her conduct was unlawful. 
 (b) Indemnification in Proceedings by or in the Right of the Corporation. The Corporation shall indemnify the Indemnitee in accordance with the provisions of this Section 2(b) if the
Indemnitee was or is a party to or threatened to be made a party to or otherwise involved in any Proceeding by or in the right of the Corporation to procure a judgment in its favor by reason of the Indemnitee’s Corporate Status or by reason of
any action alleged to have been taken or omitted in connection therewith, against all Expenses and, to the extent permitted by law, amounts paid in settlement actually and reasonably incurred by or on behalf of the Indemnitee in connection with such
Proceeding, if the Indemnitee acted in good faith and in a manner which the Indemnitee reasonably believed to be in, or not opposed to, the best interests of the Corporation, except that, if applicable law so requires, no indemnification shall be
made under this Section 2(b) in respect of any claim, issue or matter as to which the Indemnitee shall have been adjudged to be liable to the Corporation, unless, and only to the extent, that the Court of Chancery of Delaware or the court in
which such action or suit was brought shall determine upon application that, despite the adjudication of such liability but in view of all the circumstances of the case, the Indemnitee is fairly and reasonably entitled to indemnity for such Expenses
as the Court of Chancery or such other court shall deem proper. 

  
 2 

 3. Indemnification of Expenses of Successful or Partly Successful Party. Notwithstanding any other
provision of this Agreement, to the extent that the Indemnitee has been successful, on the merits or otherwise, in defense of any Proceeding or in defense of any claim, issue or matter therein (other than a Proceeding referred to in Section 5),
the Indemnitee shall be indemnified against all Expenses actually and reasonably incurred by or on behalf of the Indemnitee in connection therewith. If Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or
otherwise, as to one or more but less than all claims, issues, or matters in such Proceeding, the Corporation shall indemnify Indemnitee against all Expenses actually and reasonably incurred by him or on his behalf in connection with each
successfully resolved claim, issue or matter. 
 4. Indemnification for Expenses of a Witness. To the extent that the Indemnitee is, by
reason of the Indemnitee’s Corporate Status, a witness in any Proceeding to which the Indemnitee is not a party, the Indemnitee shall be indemnified against all Expenses actually and reasonably incurred by or on behalf of the Indemnitee in
connection therewith 
 5. Exceptions to Right of Indemnification. Notwithstanding anything to the contrary to this Agreement, except as
set forth in Section 9, the Corporation shall not indemnify the Indemnitee under this Agreement in connection with a Proceeding (or part thereof) initiated by the Indemnitee unless the initiation thereof was approved by the Board of Directors
of the Corporation; and the Corporation shall not indemnify the Indemnitee to the extent the Indemnitee has been reimbursed from the proceeds of insurance, and in the event the Corporation makes any indemnification payments to the Indemnitee and the
Indemnitee is subsequently reimbursed from the proceeds of insurance, the Indemnitee shall promptly refund such indemnification payments to the Corporation to the extent of such insurance reimbursement. 

6. Notification and Defense of Claim. 
 (a) As a condition precedent to the Indemnitee’s right to be indemnified, the Indemnitee must notify the Corporation in writing as soon as practicable of any Proceeding for which indemnity will or
could be sought. The Indemnitee shall have the right to employ his or her own counsel in connection with such Proceeding, and the fees and expenses of counsel for the Indemnitee shall be at the expense of the Corporation, except as otherwise
expressly provided by this Agreement, and provided that Indemnitee’s counsel shall cooperate reasonably with the Corporation’s counsel to minimize the cost of defending claims against the Corporation and the Indemnitee. 

(b) The Corporation shall not be required to indemnify the Indemnitee under this Agreement for any amounts paid in settlement of any
Proceeding effected without its written consent. The Corporation shall not settle any Proceeding in any manner that would impose any penalty or limitation on the Indemnitee without the Indemnitee’s written consent. Neither the Corporation nor
the Indemnitee will unreasonably withhold or delay their consent to any proposed settlement. 
 7. Advancement of Expenses. Subject to
the provisions of Section 8, in the event of any Proceeding of which the Corporation receives notice under Section 6 of this Agreement, any Expenses actually and reasonably incurred by or on behalf of the Indemnitee in defending such
Proceeding shall be paid by the Corporation promptly after receipt of the undertaking referred to in this Section 7 and, in any event, in advance of the final disposition of such Proceeding; provided, however, that the payment of such Expenses
incurred by or on behalf of the Indemnitee in advance of the final disposition of such Proceeding shall be made only upon receipt of an undertaking by or on behalf of the Indemnitee to repay all amounts so advanced to the extent that it shall
ultimately be determined that the Indemnitee is not entitled to be indemnified by the Corporation as authorized in this Agreement. Such undertaking shall be accepted without reference to the financial ability of the Indemnitee to make repayment. Any
advances and undertakings to repay pursuant to this Section 7 shall be unsecured and interest-free. 
 8. Procedures. 

(a) In order to obtain indemnification or advancement of Expenses pursuant to this Agreement, the Indemnitee shall submit to the
Corporation a written request, including in such request such documentation and information as is reasonably available to the Indemnitee and is reasonably necessary to determine whether and to what extent the Indemnitee is entitled to
indemnification or advancement of Expenses, provided that documentation 

  
 3 

 
and information need not be so provided to the extent that the provision thereof would undermine or otherwise jeopardize attorney-client privilege. Any such indemnification or advancement of
Expenses shall be made promptly, and in any event within (i) in the case of advancement of Expenses under Section 7, 20 calendar days after receipt by the Corporation of the written request of the Indemnitee, or (ii) in the case of
all other indemnification, 30 calendar days after receipt by the Corporation of the written request of the Indemnitee, subject to the provisions of Sections 8(b) and (c) below. Notwithstanding the foregoing, any failure of Indemnitee to provide
such a request to the Corporation, or to provide such a request in a timely fashion, shall not relieve the Corporation of any liability that it may have to Indemnitee except to the extent that such failure actually prejudices the interests of the
Corporation. 
 (b) With respect to requests for indemnification under Section 2, indemnification shall be made insofar as
the Corporation determines that Indemnitee has met the applicable standard of conduct set forth in Section 2. Any determination as to whether Indemnitee has met the applicable standard of conduct set forth in Section 2, and any
determination that advanced Expenses must be subsequently repaid to the Corporation, shall be made, in the discretion of the Board of Directors of the Corporation, (1) by a majority vote of the directors of the Corporation consisting of persons
who are not at that time parties to the Proceeding (“disinterested directors”), whether or not a quorum, (2) by a committee of disinterested directors designated by a majority vote of disinterested directors, whether or not a
quorum, (3) if there are no disinterested directors, or if the disinterested directors so direct, by Independent Counsel in a written opinion to the Board, or (4) by the stockholders of the Corporation. Any such determination with respect
to requests under Section 2 shall be made within the 30-day period referred to in clause (ii) of Section 8(a) (unless extended by mutual agreement by the Corporation and Indemnitee). For the purpose of the foregoing determination with
respect to requests under Section 2 or repayment of advanced Expenses, the Indemnitee shall be entitled to a presumption that he or she has met the applicable standard of conduct set forth in Section 2. 

(c) Notwithstanding anything to the contrary set forth in this Agreement, if a request for indemnification is made after a Change in
Control, at the election of the Indemnitee made in writing to the Corporation, any determination required to be made pursuant to Section 8(b) above as to whether the Indemnitee has met the applicable standard of conduct or is required to repay
advanced Expenses shall be made by Independent Counsel selected as provided in this Section 8(c). The Independent Counsel shall be selected by the Indemnitee, unless the Indemnitee shall request that such selection be made by the Board of
Directors of the Corporation. The party making the determination shall give written notice to the other party advising it of the identity of the Independent Counsel so selected. The party receiving such notice may, within seven days after such
written notice of selection shall have been given, deliver to the other party a written objection to such selection. Such objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of
“Independent Counsel” as defined in Section 1, and the objection shall set forth with particularity the factual basis of such assertion. Absent a proper and timely objection, the person so selected shall act as Independent Counsel. If
a written objection is made, the Independent Counsel so selected may not serve as Independent Counsel unless and until a court has determined that such objection is without merit. If, within 20 days after submission by the Indemnitee of a written
request for indemnification, no Independent Counsel shall have been selected or if selected, shall have been objected to, in accordance with this paragraph either the Corporation or the Indemnitee may petition the Court of Chancery of the State of
Delaware or other court of competent jurisdiction for resolution of any objection which shall have been made by the Corporation or the Indemnitee to the other’s selection of Independent Counsel and/or for the appointment as Independent Counsel
of a person selected by the court or by such other person as the court shall designate, and the person with respect to whom an objection is favorably resolved or the person so appointed shall act as Independent Counsel. The Corporation shall pay the
reasonable fees and expenses of Independent Counsel incurred in connection with its acting in such capacity. The Corporation shall pay any and all reasonable and necessary fees and expenses incident to the procedures of this paragraph, regardless of
the manner in which such Independent Counsel was selected or appointed. 
 (d) The termination of any Proceeding by judgment,
order, settlement, conviction or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the Indemnitee did not act in good faith and in a manner that the Indemnitee reasonably believed to be in, or not
opposed to, the best interests of the Corporation, and, with respect to any criminal Proceeding, had reasonable cause to believe that his or her conduct was unlawful. 

  
 4 

 (e) The Corporation acknowledges that a settlement or other disposition short of final
judgment may be successful if it permits a party to avoid expense, delay, distraction, disruption and uncertainty. In the event that any action, claim or proceeding to which Indemnitee is a party is resolved in any manner other than by adverse
judgment against Indemnitee (including, without limitation, settlement of such action, claim or proceeding with or without payment of money or other consideration) it shall be presumed that Indemnitee has been successful on the merits or otherwise
in such action, suit or proceeding. Anyone seeking to overcome this presumption shall have the burden of proof and the burden of persuasion by clear and convincing evidence. 
 (f) The Indemnitee shall cooperate with the person, persons or entity making such determination with respect to the Indemnitee’s entitlement to indemnification, including providing to such person,
persons or entity upon reasonable advance request any documentation or information which is not privileged or otherwise protected from disclosure and which is reasonably available to the Indemnitee and reasonably necessary to such determination. Any
Expenses actually and reasonably incurred by the Indemnitee in so cooperating shall be borne by the Corporation (irrespective of the determination as to the Indemnitee’s entitlement to indemnification) and the Corporation hereby indemnifies the
Indemnitee therefrom. 
 (g) Indemnitee shall be deemed to have acted in good faith if Indemnitee’s action is based on the
records or books of account of the Corporation, including financial statements, or on information supplied to Indemnitee by the officers of the Corporation in the course of their duties, or on the advice of legal counsel for the Corporation or on
information or records given or reports made to the Corporation by an independent certified public accountant or by an appraiser or other expert selected with reasonable care by the Corporation. In addition, the knowledge and/or actions, or failure
to act, of any other director, officer, agent or employee of the Corporation shall not be imputed to Indemnitee for purposes of determining the right to indemnification under this Agreement. 
 9. Remedies. The right to indemnification or advancement of Expenses as provided by this Agreement shall be enforceable by the Indemnitee in any court of competent jurisdiction if the Corporation
denies such request, in whole or in part, or if no disposition thereof is made within the applicable period referred to in Section 8. Unless otherwise required by law, the burden of proving that indemnification is not appropriate shall be on
the Corporation. Neither the failure of the Corporation to have made a determination prior to the commencement of such action that indemnification is proper in the circumstances because the Indemnitee has met the applicable standard of conduct, nor
an actual determination by the Corporation that the Indemnitee has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the Indemnitee has not met the applicable standard of conduct. The
Indemnitee’s Expenses actually and reasonably incurred in connection with successfully establishing the Indemnitee’s right to indemnification, in whole or in part, in any such Proceeding shall also be indemnified by the Corporation.

 10. Partial Indemnification. If the Indemnitee is entitled under any provision of this Agreement to indemnification by the Corporation
for some or a portion of the Expenses, judgments, fines, penalties or amounts paid in settlement actually and reasonably incurred by or on behalf of the Indemnitee in connection with any Proceeding but not, however, for the total amount thereof, the
Corporation shall nevertheless indemnify the Indemnitee for the portion of such Expenses, judgments, fines, penalties or amounts paid in settlement to which the Indemnitee is entitled. 
 11. Subrogation. In the event of any payment under this Agreement, the Corporation shall be subrogated to the extent of such payment to all of the rights of recovery of the Indemnitee, who shall
execute all papers required and take all action necessary to secure such rights, including execution of such documents as are necessary to enable the Corporation to bring suit to enforce such rights. 

12. Term of Agreement. This Agreement shall continue until and terminate upon the later of (a) six years after the date that the Indemnitee
shall have ceased to serve as a director or officer of the Corporation or, at the request of the Corporation, as a director, officer, partner, trustee, member, employee or agent of another corporation, partnership, joint venture, trust, limited
liability company or other enterprise or (b) the final termination of all Proceedings pending on the date set forth in clause (a) in respect of which the Indemnitee is granted rights of indemnification or advancement of Expenses hereunder
and of any proceeding commenced by the Indemnitee pursuant to Section 9 of this Agreement relating thereto. 

  
 5 

 13. Indemnification Hereunder Not Exclusive.  

(a) The Corporation hereby acknowledges that Indemnitee has certain rights to indemnification, advancement of expenses and/or insurance
provided by third parties (collectively, the “Other Indemnitors”). The Corporation hereby agrees (i) that it is the indemnitor of first resort (i.e., its obligations to Indemnitee are primary and any obligation of the Other
Indemnitors to advance expenses or to provide indemnification for the same expenses or liabilities incurred by Indemnitee are secondary), (ii) that it shall be required to advance the full amount of expenses incurred by Indemnitee and shall be
liable for the full amount of all Expenses, judgments, penalties, fines and amounts paid in settlement to the extent legally permitted and as required by the terms of this Agreement and Amended and Restated Certification of Incorporation or the
Amended and Restated By-Laws of the Corporation (or any other agreement between the Corporation and Indemnitee), without regard to any rights Indemnitee may have against the Other Indemnitors, and, (iii) that it irrevocably waives, relinquishes
and releases the Other Indemnitors from any and all claims against the Other Indemnitors for contribution, subrogation or any other recovery of any kind in respect thereof; provided, however, that this Section 13(a) shall not apply in the case
of Indemnitee’s willful or grossly negligent breach of fiduciary duties. Except as provided herein, the Corporation further agrees that no advancement or payment by the Other Indemnitors on behalf of Indemnitee with respect to any claim for
which Indemnitee has sought indemnification from the Corporation shall affect the foregoing and the Other Indemnitors shall have a right of contribution and/or be subrogated to the extent of such advancement or payment to all of the rights of
recovery of Indemnitee against the Corporation. 
 (b) The indemnification and advancement of Expenses provided by this
Agreement shall not be deemed exclusive of any other rights to which the Indemnitee may be entitled under the Amended and Restated Certification of Incorporation, the Amended and Restated By-Laws, any other agreement, any vote of stockholders or
disinterested directors, the General Corporation Law of Delaware, any other law (common or statutory), or otherwise, both as to action in the Indemnitee’s official capacity and as to action in another capacity while holding office for the
Corporation. 
 (c) The Corporation shall use commercially reasonable efforts to purchase and maintain Directors and Officers
liability insurance, at its expense, to protect itself or the Indemnitee against any expense, liability or loss incurred by it or the Indemnitee in any such capacity, or arising out of the Indemnitee’s status as such, whether or not the
Indemnitee would be indemnified against such expense, liability or loss under this Agreement. 
 14. Non-Disclosure of Payments. Except
as expressly required by law, neither party shall disclose any payments under this Agreement unless prior approval of the other party is obtained. If any payment information must be disclosed, the Corporation shall afford the Indemnitee an
opportunity to review all such disclosures and, if requested, to explain in such statement any mitigating circumstances regarding the events to be reported. 
 15. No Special Rights. Nothing herein shall confer upon the Indemnitee any right to continue to serve as an officer or director of the Corporation for any period of time or at any particular rate
of compensation. 
 16. Savings Clause. If this Agreement or any portion thereof shall be invalidated on any ground by any court of
competent jurisdiction, then the Corporation shall nevertheless indemnify the Indemnitee as to Expenses, judgments, fines, penalties and amounts paid in settlement with respect to any Proceeding to the full extent permitted by any applicable portion
of this Agreement that shall not have been invalidated and to the fullest extent permitted by applicable law. 
 17. Counterparts. This
Agreement may be executed in any number of counterparts, each of which shall constitute the original. 
 18. Successors and Assigns. This
Agreement shall be binding upon the Corporation and its successors and assigns and shall inure to the benefit of the estate, heirs, executors, administrators and personal representatives of the Indemnitee. 

19. Headings. The headings of the paragraphs of this Agreement are inserted for convenience only and shall not be deemed to constitute part of
this Agreement or to affect the construction thereof. 

  
 6 

 20. Modification and Waiver. This Agreement may be amended from time to time to reflect changes in
Delaware law or for other reasons. No supplement, modification or amendment of this Agreement shall be binding unless executed in writing by both of the parties hereto. No waiver of any of the provisions of this Agreement shall be deemed or shall
constitute a waiver of any other provision hereof nor shall any such waiver constitute a continuing waiver. 
 21. Notices. All notices,
requests, demands and other communications hereunder shall be in writing and shall be deemed to have been given (i) when delivered by hand or (ii) if mailed by certified or registered mail with postage prepaid, on the third day after the
date on which it is so mailed: 
  

					
	(a)	  	  if to the Indemnitee, to the address set forth on the signature page hereto.
			
	(b)	  	  if to the Corporation, to:	  	KAYAK Software Corporation
		  		  	 Attn: General Counsel
 55 North
Water Street, Suite 1
 Norwalk, CT 06854

 or to such other address as may have been furnished to the Indemnitee by the Corporation or to the Corporation by the
Indemnitee, as the case may be. 
 22. Applicable Law. This Agreement shall be governed by, and construed and enforced in accordance
with, the laws of the State of Delaware. The Indemnitee may elect to have the right to indemnification or reimbursement or advancement of Expenses interpreted on the basis of the applicable law in effect at the time of the occurrence of the event or
events giving rise to the applicable Proceeding, to the extent permitted by law, or on the basis of the applicable law in effect at the time such indemnification or reimbursement or advancement of Expenses is sought. Such election shall be made, by
a notice in writing to the Corporation, at the time indemnification or reimbursement or advancement of Expenses is sought; provided, however, that if no such notice is given, and if the General Corporation Law of Delaware is amended, or other
Delaware law is enacted, to permit further indemnification of the directors and officers, then the Indemnitee shall be indemnified to the fullest extent permitted under the General Corporation Law, as so amended, or by such other Delaware law, as so
enacted. 
 23. Enforcement. The Corporation expressly confirms and agrees that it has entered into this Agreement in order to induce the
Indemnitee to continue to serve as an officer or director of the Corporation, and acknowledges that the Indemnitee is relying upon this Agreement in continuing in such capacity. 
 24. Entire Agreement. This Agreement sets forth the entire agreement of the parties hereto in respect of the subject matter contained herein and supersedes all prior agreements, whether oral or
written, by any officer, employee or representative of any party hereto in respect of the subject matter contained herein; and any prior agreement of the parties hereto in respect of the subject matter contained herein is hereby terminated and
cancelled. For avoidance of doubt, the parties confirm that the foregoing does not apply to or limit the Indemnitee’s rights under Delaware law or the Corporation’s Third Amended and Restated Certificate of Incorporation or Amended and
Restated By-Laws. 
 25. Consent to Suit. In the case of any dispute under or in connection with this Agreement, the Indemnitee may only
bring suit against the Corporation in the Court of Chancery of the State of Delaware. The Indemnitee hereby consents to the exclusive jurisdiction and venue of the courts of the State of Delaware, and the Indemnitee hereby waives any claim the
Indemnitee may have at any time as to forum non conveniens with respect to such venue. The Corporation shall have the right to institute any legal action arising out of or relating to this Agreement in any court of competent jurisdiction. Any
judgment entered against either of the parties in any proceeding hereunder may be entered and enforced by any court of competent jurisdiction. 
 [Remainder of the Page Intentionally Left Blank] 

  
 7 

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

			
	KAYAK SOFTWARE CORPORATION
		
	By:	 	  

		 	Name:
		 	Title:
	
	INDEMNITEE:
		
	By:	 	  

		 	Name:
		
	Address:	 	  

		
		 	  

		
		 	  

  
 8

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