Document:

EX-10.3

 Exhibit 10.3 

LONGBOARD PHARMACEUTICALS, INC. 

RESTRICTED STOCK AWARD GRANT NOTICE 

(2020 EQUITY INCENTIVE PLAN) 
 Longboard
Pharmaceuticals, Inc. (the “Company”), pursuant to its 2020 Equity Incentive Plan (the “Plan”), hereby awards to Participant, in consideration for Participant’s past or future services
actually or to be rendered to the Company, the number of shares of Common Stock (the “Shares”) set forth below (the “Award”). The Award is subject to all of the terms and conditions as set forth in
this Restricted Stock Award Grant Notice (the “Grant Notice”) and the attached Restricted Stock Award Terms and Conditions (together with the Grant Notice, the “Award Agreement”), and the Plan, all of
which are attached to this Grant Notice and incorporated into this Grant Notice in their entirety. Capitalized terms not explicitly defined in the Award Agreement but defined in the Plan will have the meanings provided in the Plan. If the Company
uses an electronic capitalization table system (such as Carta or Shareworks) and the fields below are blank or the information is otherwise provided in a different format electronically, the blank fields and other information (such as exercise
schedule and type of grant) shall be deemed to come from the electronic capitalization system and is considered part of this Grant Notice. 
  

					
	Participant:	  	  
	  	
	Date of Grant:	  	  
	  	
	Vesting Commencement Date:	  	  
	  	
	Number of Shares Subject to Award:	  	  
	  	
	Consideration:	  	[Participant’s services]	  	

  

	Vesting Schedule:	 [Sample of standard vesting. 12/48ths of the total shares will vest on the one-year anniversary of the Vesting Commencement Date, and 1/48th of the total shares will vest each month thereafter on the same day of the month as the Vesting Commencement Date (or if there is no corresponding
day, on the last day of the month), subject to Participant’s Continuous Service as of each such date]. 

 Additional
Terms/Acknowledgements: Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts this Award subject to all of the terms and provisions of the Plan
and this Award Agreement (including all attachments and exhibits) and has had an opportunity to obtain the advice of counsel prior to executing and accepting the Award. By accepting this Award, Participant hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Board upon any questions arising under the Plan or this Award. 
 Participant further consents
to receive any documents related to the Plan by electronic delivery and to participate in the Plan through an online or electronic system established and maintained by the Company or a third party designated by the Company. 

Participant further acknowledges that as of the Date of Grant, this Award Agreement and the Plan set forth the entire understanding between Participant and
the Company regarding the acquisition of stock in the Company and supersede all prior oral and written agreements on that subject, with the exception of (i) options, restricted stock awards or other compensatory stock awards previously granted
and delivered to Participant, and (ii) any written employment or severance arrangement that would provide for vesting acceleration of this Award upon the terms and conditions set forth therein. 

 Participant further acknowledges that this Award Agreement has been prepared on behalf of the Company by
Cooley LLP, counsel to the Company and that Cooley LLP does not represent, and is not acting on behalf of, Participant in any capacity. Participant has been provided with an opportunity to consult with Participant’s own counsel with respect to
this Award Agreement. 
 This Award may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act or other
applicable law) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes. 

 

					
	Longboard Pharmaceuticals, Inc.	  		  	Participant:
			
	By:                                     
                                        	  	                        	  	  

	Signature	  		  	Signature
			
	Title:                                     
                                      	  		  	Date:                                     
                                        

			
	Date:                                     
                                      	  		  	

 Attachments: 
  

			
	Attachment I:	  	Restricted Stock Award Terms and Conditions
	 Exhibit A:
	  	Assignment Separate from Certificate
	 Exhibit B :
	  	Joint Escrow Instructions
		
	Attachment II:	  	2020 Equity Incentive Plan
	Attachment III:            	  	Section 83(b) Election

 ATTACHMENT I 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

 LONGBOARD PHARMACEUTICALS, INC. 

(2020 EQUITY INCENTIVE PLAN) 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

Longboard Pharmaceuticals, Inc. (the “Company”) has awarded you, in exchange for your services to the Company,
the number of Shares indicated in the Grant Notice (the “Award”) pursuant to its 2020 Equity Incentive Plan (the “Plan”). The Grant Notice and these Restricted Stock Award Terms and Conditions are
collectively referred to as the “Award Agreement”. Capitalized terms not explicitly defined in this Agreement but defined in the Plan will have the same meanings given to them in the Plan. 

The details of your Award, in addition to those set forth in the Grant Notice and the Plan, are as follows: 

1. Escrow of Shares. As security for your faithful performance of the terms of this Award Agreement and to ensure the
availability for delivery of the Unvested Shares upon exercise of the Reacquisition Right, you agree that the Shares will be held in escrow pursuant to the terms of the Joint Escrow Instructions attached to this Agreement as Exhibit B. You
agree to execute and deliver to the individual designated as the escrow agent in the Joint Escrow Instructions or person’s designee (the “Escrow Agent”), (i) the Joint Escrow Instructions and (ii) two Assignment
Separate From Certificate forms duly endorsed (with date and number of shares blank) substantially in the form attached to this Agreement as Exhibit A and deliver the same, along with the certificate or certificates evidencing the Unvested
Shares, which will be held and used by the Escrow Agent pursuant to the terms of the Joint Escrow Instructions. 
 2. Vesting.
Subject to the limitations contained herein, the Shares will vest pursuant to the Vesting Schedule in the Grant Notice, provided that vesting will cease upon the termination of your Continuous Service. “Vested Shares” will
mean Shares that have vested in accordance with the Vesting Schedule, and “Unvested Shares” will mean Shares that have not vested in accordance with the Vesting Schedule. 

3. Number of Shares; Capitalization Adjustments. The number of Shares subject to your Award may be adjusted from time to time for
Capitalization Adjustments. In the event of any such Capitalization Adjustments, new, substituted or additional securities or other property to which you are entitled by reason of your ownership of the Unvested Shares will be immediately subject to
the same vesting requirements and vesting schedule that is applicable to the Shares with respect to which such additional Shares relate, as well as all transfer restrictions contained in this Award Agreement, including the Reacquisition Right, the
Right of First Refusal and the Lock-Up Period (each as defined below). No fractional shares or rights for fractional shares will be created pursuant to this Section. Any fraction of a share will be rounded
down to the nearest whole share. 
 4. Securities Law Compliance. The Shares are not registered under the Securities Act. At
this time, the Company has determined that the issuance of the Shares under this Award is exempt from the registration requirements of the Securities Act. If the Company determines at any time that an exemption from the registration requirements of
the Securities Act was not available or that the issuance of the Shares otherwise would not comply with any other applicable laws and regulations, then the Company will not be obligated to issue the Shares or may rescind the award to you. 

  
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 5. Transfer Restrictions. In addition to any other limitation on transfer
created by the Company’s bylaws and applicable securities laws, you may not Transfer all or any part of the Unvested Shares or any interest in the Unvested Shares while such shares are subject to the Reacquisition Right (as defined below) or
continue to be held by the Escrow Agent (as defined below) or by the Company’s transfer agent in restricted book entry form. In the case of Vested Shares, you may not Transfer the Vested Shares or any interest in the Vested Shares except in
compliance with this Award Agreement, including without limitation the Right of First Refusal (as defined below), the Company’s bylaws and applicable securities laws. As used in this Award Agreement, the term “Transfer”
means any sale, encumbrance, pledge, gift or other form of disposition or transfer of shares of Common Stock or any legal or equitable interest therein; provided, however, that the term Transfer does not include a transfer of such shares or
interests by will or intestacy to your Immediate Family. In such case, the transferee or other recipient will receive and hold the Shares so transferred subject to the provisions of this Award Agreement, and there will be no further transfer of such
shares except in accordance with the terms of this Award Agreement. The term “Immediate Family” will mean your spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild
or adopted grandchild of you or your spouse, or the spouse of any child, adopted child, grandchild or adopted grandchild of you or your spouse. 

6. Unvested Share Reacquisition Right. 

(a) Reacquisition Right. In the event your Continuous Service terminates, the Company will automatically reacquire (the
“Reacquisition Right”) on the date that is 90 days after the termination of your Continuous Service (the “Reacquisition Date”) all Unvested Shares as of the date of your termination of Continuous
Service without any payment to you (that is, for zero dollars ($0)) and without any required action or notice to you. You hereby agree to take whatever action the Company deems necessary to effectuate the Company’s reacquisition of the Unvested
Shares. Following such reacquisition, the Company will become the legal and beneficial owner of the Unvested Shares being reacquired and all rights and interests in and related to such shares, and the Company will have the right to transfer to its
own name the Unvested Shares being reacquired by the Company without further action by you. Notwithstanding anything to the contrary in this Section or in this Award Agreement, the Company may elect to waive, in its sole discretion, its
Reacquisition Right in whole or in part by providing written notice to you (with a copy to the Escrow Agent, as defined below), at any time prior to or on the Reacquisition Date, and the Escrow Agent may then release to you the number of Shares not
being reacquired by the Company. 
 (b) Corporate Transactions. To the extent the Reacquisition Right remains in effect
following a Corporate Transaction or Change in Control, unless otherwise provided by the Board pursuant to the terms of the Plan, it will apply to the new capital stock, cash or other property received in exchange for the Unvested Shares in
consummation of the Corporate Transaction or Change in Control, as applicable, but only to the extent the Unvested Shares were at the time covered by such right. 

(c) Termination of Reacquisition Right. The Company’s Reacquisition Right will terminate upon the earlier of (i) the
Company’s reacquisition in full of the Unvested Shares (or waiver of the Reacquisition Right) and (ii) the expiration of the Company’s Reacquisition Right. 

7. Right of First Refusal. Shares that are received under your Award are subject to any right of first refusal that may be
described in the Company’s bylaws in effect at such time the Company elects to exercise its right; provided, however, that if there is no right of first refusal described in the Company’s bylaws at such time, the right of first
refusal described below (the “Right of First Refusal”) will apply. The Right of First Refusal will expire on the first date upon which any security of the Company is listed (or approved for listing) upon notice of issuance on
a national securities exchange or quotation system (the “Listing Date”). 

  
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 (a) Prior to the Listing Date, you may not validly Transfer any Shares received under
the Award, or any interest in such shares, unless such Transfer is made in compliance with the following provisions: 
 (i) Before
there can be a valid Transfer of any Shares or any interest therein, the record holder of the Shares to be transferred (the “Offered Shares”) will give written notice (by registered or certified mail) to the Company (the
“ROFR Notice”). Such notice will specify the identity of the proposed transferee, the cash price offered for the Offered Shares by the proposed transferee (or, if the proposed Transfer is one in which the holder will not
receive cash, such as an involuntary transfer, gift, donation or pledge, the holder will state that no purchase price is being proposed), and the other terms and conditions of the proposed Transfer. The date such notice is mailed will be hereinafter
referred to as the “Notice Date” and the record holder of the Offered Shares will be hereinafter referred to as the “Offeror.” 

(ii) For a period of 30 calendar days after the Notice Date, the Company will have the option to exercise its Right of First Refusal
and purchase all or any portion of the Offered Shares at the purchase price and on the terms set forth in this Section. In the event that the proposed Transfer is one involving no payment of a purchase price, the purchase price will be deemed to be
the Fair Market Value of the Offered Shares as determined in good faith by the Board in its discretion. The Company may exercise its Right of First Refusal by mailing (by registered or certified mail) written notice of exercise of its Right of First
Refusal to the Offeror prior to the end of said 30 days. 
 (iii) The price at which the Company may purchase the Offered Shares
pursuant to the exercise of its Right of First Refusal will be the cash price offered for the Offered Shares by the proposed transferee (as set forth in the ROFR Notice), or the Fair Market Value as determined by the Board in the event no purchase
price is involved. To the extent consideration other than cash is offered by the proposed transferee, the Company will not be required to pay any additional amounts to the Offeror other than the cash price offered (or the Fair Market Value, if
applicable). The Company’s notice of exercise of its Right of First Refusal will be accompanied by full payment for the Offered Shares and, upon such payment by the Company, the Company will acquire full right, title and interest to all of the
Offered Shares. 
 (iv) If, and only if, the Company elects not to exercise its Right of First Refusal as to the Offered Shares, the
Transfer proposed in the ROFR Notice may take place; provided, however, that such Transfer must, in all respects, be exactly as proposed in said notice except that such Transfer may not take place either before the 10th calendar day after the expiration of the 30 day option exercise period or after the 90th calendar day after the expiration of the 30 day option
exercise period, and if such Transfer has not taken place prior to said 90th day, such Transfer may not take place without once again complying with this Section. 

(b) None of the shares of Common Stock received under the Award will be transferred on the Company’s books nor will the Company
recognize any such Transfer of any such shares or any interest therein unless and until all applicable provisions of this Section have been complied with in all respects. The certificates of stock evidencing Shares received under the Award will bear
an appropriate legend referring to the transfer restrictions imposed by this Section. 
 8.
Lock-Up Period. By accepting your Award, you agree that you will not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar
transaction with the same economic effect as a sale with respect to any shares of Common Stock or other securities of the Company held by you, for a period of 180 days following the effective date of a registration statement of the Company filed
under the Securities Act or such longer period as the underwriters or the Company will request to facilitate compliance with applicable FINRA rules (the “Lock-Up Period”);

  
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provided, however, that nothing contained in this Section will prevent the exercise of a reacquisition or repurchase option, if any, in favor of the Company during the Lock-Up Period. You further agree to execute and deliver such other agreements as may be reasonably requested by the Company or the underwriters that are consistent with the foregoing or that are necessary to give
further effect to the foregoing covenant. You also agree that any transferee of any other shares of Common Stock (or other securities) of the Company held by you will be bound by this Section. To enforce the foregoing covenant, the Company may
impose stop-transfer instructions with respect to your shares of Common Stock until the end of such period. The underwriters of the Company’s stock are intended third party beneficiaries of this Section and will have the right, power and
authority to enforce the provisions of this Section as though they were a party to this Award Agreement. You further agree that the obligations contained in this Section 8 shall also, if so determined by the Company’s Board of Directors,
apply in the Company’s initial listing of its Common Stock on a national securities exchange by means of a registration statement on Form S-1 under the Securities Act (or any successor registration form
under the Securities Act subsequently adopted by the Securities and Exchange Commission) filed by the Company with the Securities and Exchange Commission that registers shares of existing capital stock of the Company for resale (a “Direct
Listing”) (and, for avoidance of doubt, the Lock-Up Period shall be deemed to include the period following the Direct Listing during which the restrictions under this Section 8 apply)
provided that all holders of at least 5% of the Company’s outstanding Common Stock (after giving effect to the conversion into Common Stock of any outstanding Preferred Stock of the Company) are subject to substantially similar obligations with
respect to such Direct Listing. 
 9. Rights as Stockholder. 

(a) General. Subject to the provisions of this Award Agreement, you will exercise all rights and privileges of a stockholder of
the Company with respect to the Shares, including for purposes of exercising any voting rights relating to any Unvested Shares. 
 (b)
Dividends. You will be deemed to be the holder of the Unvested Shares for purposes of receiving any dividends that may be paid with respect to such Shares; provided, however, that any dividends or other distributions paid with respect
to the Unvested Shares shall be subject to all of the terms and conditions applicable under this Award Agreement to the same extent as the Unvested Shares. For clarity, cash dividends made prior to the vesting of any Unvested Shares will be withheld
and paid to you (without interest) only if, when and to the extent, such Shares become Vested Shares. 
 10. Waiver of
Information Rights. You hereby acknowledge and agree that, except for such information as required to be delivered to you by the Company pursuant to any other agreement by and between you and the Company, you shall have no right to receive any
information from the Company by virtue of your purchase of the Shares, ownership of the Shares, or as a result of you being a holder of record of stock of the Company. Without limiting the foregoing, to the fullest extent permitted by law, you
hereby waive your inspection rights under Section 220 of the Delaware General Corporation Law and all such similar information and/or inspection rights that may be provided under the law of any jurisdiction, or any federal, state or foreign
regulation, that are, or may become, applicable to the Company, the Company’s capital stock or the Shares (the “Inspection Rights”). You hereby covenant and agree never to directly or indirectly commence,
voluntarily aid in any way, prosecute, assign, transfer, or cause to be commenced any claim, action, cause of action, or other proceeding to pursue or exercise the Inspection Rights. 

11. Restrictive Legends. All certificates representing the Common Stock issued under your Award will be endorsed with
appropriate legends determined by the Company in substantially the following forms (in addition to any other legend that may be required by other agreements between you and the Company): 

  
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 (a) “THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A REACQUISITION
RIGHT AND OTHER RESTRICTIONS AND CONDITIONS SET FORTH IN A RESTRICTED STOCK AWARD AGREEMENT BETWEEN THE COMPANY AND THE REGISTERED HOLDER, OR SUCH HOLDER’S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE COMPANY’S PRINCIPAL
CORPORATE OFFICES. ANY TRANSFER OR ATTEMPTED TRANSFER OF ANY SHARES SUBJECT TO SUCH RIGHT IS VOID WITHOUT THE PRIOR EXPRESS WRITTEN CONSENT OF THE COMPANY.” 

(b) “THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THEY MAY NOT
BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER SAID ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.” 

(c) “THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RIGHTS OF REFUSAL GRANTED TO THE COMPANY AND/OR ITS
ASSIGNEE(S) AND ACCORDINGLY MAY NOT BE SOLD, ASSIGNED, TRANSFERRED, ENCUMBERED OR IN ANY MANNER DISPOSED OF EXCEPT IN CONFORMITY WITH THE TERMS OF THE BYLAWS OF THE COMPANY AND/OR A RESTRICTED STOCK AWARD AGREEMENT BETWEEN THE COMPANY AND THE
REGISTERED HOLDER, OR SUCH HOLDER’S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE COMPANY’S PRINCIPAL CORPORATE OFFICES.” 

(d) “THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A TRANSFER RESTRICTION, AS PROVIDED IN THE BYLAWS OF THE
COMPANY.” 
 (e) Any legend required by appropriate blue sky officials. 

12. Investment Representations. In connection with your acquisition of the Common Stock under your Award, you represent to
the Company the following: 
 (a) You are aware of the Company’s business affairs and financial condition and have acquired
sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Shares. You are acquiring the Shares for investment for your own account only and not with a view to, or for resale in connection with, any
“distribution” thereof within the meaning of the Securities Act. 
 (b) You understand that the Shares have not been
registered under the Securities Act by reason of a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of your investment intent as expressed in this Award Agreement. 

(c) You further acknowledge and understand that the Shares must be held indefinitely unless the Shares are subsequently registered under
the Securities Act or an exemption from such registration is available. You further acknowledge and understand that the Company is under no obligation to register the Common Stock. You understand that the certificate evidencing the Common Stock will
be imprinted with a legend that prohibits the transfer of the Common Stock unless the Common Stock is registered or such registration is not required in the opinion of counsel for the Company. 

  
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 (d) You are familiar with the provisions of Rule 701 and Rule 144 promulgated
under the Securities Act (“Rule 144”), as in effect from time to time, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly, from the issuer thereof (or from
an affiliate of such issuer), in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of issuance of the
securities, such issuance will be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, the securities exempt under Rule 701
may be sold by you 90 days thereafter, subject to the satisfaction of certain of the conditions specified by Rule 144 and by the agreement(s) relating to the Lock-Up Period. 

(e) In the event that the sale of the Shares does not qualify under Rule 701 at the time of issuance, then the Shares may be resold
by you in certain limited circumstances subject to the provisions of Rule 144, which requires, among other things: (i) the availability of certain public information about the Company; and (ii) the resale occurring following the required
holding period under Rule 144 after you have purchased, and made full payment of (within the meaning of Rule 144), the securities to be sold. 

(f) You further understand that at the time you wish to sell the Shares, there may be no public market upon which to make such a sale,
and that, even if such a public market then exists, the Company may not be satisfying the current public current information requirements of Rule 144 or 701, and that, in such event, you would be precluded from selling the Shares under Rule 144 or
701 even if the minimum holding period requirement had been satisfied. 
 13. Withholding Obligations. 

(a) At the time your Award is made, or at any time thereafter as requested by the Company, you hereby authorize withholding from payroll
and any other amounts payable to you, and otherwise agree to make adequate provision for any sums required to satisfy the federal, state, local and foreign tax withholding obligations of the Company or an Affiliate, if any, which arise in connection
with your Award (the “Withholding Taxes”). The Company may, in its sole discretion, satisfy all or any portion of the Withholding Taxes obligation relating to your Award by any of the following means or by a combination of such means:
(i) withholding from any amounts otherwise payable to you by the Company; (ii) causing you to tender a cash payment; or (iii) withholding Shares issued or otherwise issuable to you in connection with the Award with a Fair Market Value
equal to the amount of such Withholding Taxes; provided, however, that the number of such Shares withheld may not exceed the amount necessary to satisfy the Company’s required tax withholding obligations using the minimum statutory
withholding rates for federal, state, local and foreign tax purposes, including payroll taxes, that are applicable to supplemental taxable income. 

(b) Unless the tax withholding obligations of the Company and any Affiliate are satisfied, the Company will have no obligation to issue
a certificate for such Shares or release such Shares from any escrow provided for in this Award Agreement. 
 14. Tax
Consequences. You agree to review with your own tax advisors the federal, state, local and foreign tax consequences of this investment and the transactions contemplated by this Award. You will rely solely on such advisors and not on any
statements or representations of the Company or any of its agents. You understand that you (and not the Company) will be responsible for your own tax liability that may arise as a result of this investment or the transactions contemplated by this
Award. You understand that Section 83 of the Code taxes as ordinary income to you the fair market value of the Shares issued to you pursuant to the Award as of the date any restrictions on such shares lapse (that is, as of the date on which
part or all of such shares vest). In this context, “restriction” includes the right of the Company to reacquire the Shares pursuant to the Reacquisition Right set forth above. You understand that you may elect to be taxed at the time the
Shares are issued to you pursuant to your Award, rather than when and as the Reacquisition Right expires, by filing an election under Section 83(b) of the Code (an “83(b) Election”)

  
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with the Internal Revenue Service within 30 days after the date your acquire Shares pursuant to your Award. Even if the fair market value of the Common Stock at the time of grant of your Award
equals the amount paid for the Shares (if anything), the 83(b) Election must be made to avoid income under Section 83(a) in the future. You understand that failure to file such an 83(b) Election in a timely manner may result in adverse tax
consequences for you. You acknowledge that the foregoing is only a summary of the effect of U.S. federal income taxation with respect to issuance of the Shares pursuant to your Award, and does not purport to be complete. You further acknowledge that
the Company has directed you to seek independent advice regarding the applicable provisions of the Code, the income tax laws of any municipality, state or foreign country in which you may reside, and the tax consequences of your death. You assume
all responsibility for filing an 83(b) Election and paying all taxes resulting from such election or the lapse of the restrictions on the Shares. YOU ACKNOWLEDGE THAT IT IS YOUR OWN RESPONSIBILITY, AND NOT THE COMPANY’S, TO FILE A TIMELY
83(b) ELECTION. THE COMPANY AND ITS LEGAL COUNSEL CANNOT ASSUME RESPONSIBILITY FOR FAILURE TO FILE THE 83(b) ELECTION IN A TIMELY MANNER UNDER ANY CIRCUMSTANCES. 

15. Severability. If all or any part of this Award Agreement or the Plan is declared by any court or governmental authority to be
unlawful or invalid, such unlawfulness or invalidity will not invalidate any portion of this Award Agreement or the Plan not declared to be unlawful or invalid. Any Section of this Award Agreement (or part of such a Section) so declared to be
unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid. 

16. Governing Law. The interpretation, performance and enforcement of this Award Agreement shall be governed by the law of the
State of Delaware without regard to that state’s conflicts of laws rules. 
 17. Notices. Any notice or request
required or permitted hereunder will be given in writing to each of the other parties hereto and will be deemed effectively given on the earlier of (i) the date of personal delivery, including delivery by express courier, or delivery via
electronic means, or (ii) the date that is five days after deposit in the United States Post Office (whether or not actually received by the addressee), by registered or certified mail with postage and fees prepaid, addressed to the Company at
its primary executive offices, attention: Stock Plan Administrator, and addressed to you at your address as on file with the Company at the time notice is given. 

18. Imposition of Other Requirements. As a condition to the grant of your Award or to the Company’s the issuance of any
Shares under this Award, the Company may require you to execute further documents or instruments necessary or desirable in the sole determination of the Company to carry out the purposes or intent of your Award. In addition, you may be required to
execute certain customary agreements entered into with the holders of capital stock of the Company, including without limitation a right of first refusal and co-sale agreement, stockholders agreement and a
voting agreement. 

  
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 EXHIBIT A TO 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

ASSIGNMENT SEPARATE FROM CERTIFICATE 

For Value Received and pursuant to that certain Restricted Stock Award Grant Notice dated ____________ (the
“Award”), [Participant’s Name] hereby sells, assigns and transfers unto Longboard Pharmaceuticals, Inc., a Delaware corporation (the “Company”) _______________ shares of the
Common Stock of the Company, standing in the undersigned’s name on the books of the Company represented by Certificate No(s). _____ and does hereby irrevocably constitute and appoint the Company’s Secretary as attorney-in-fact to transfer the said Common Stock on the books of the Company with full power of substitution in the premises. This Assignment Separate From Certificate may
be used only in accordance with and subject to the terms and conditions of the Award, in connection with the reacquisition of shares of Common Stock of the Company issued to the undersigned pursuant to the Award, and only to the extent that
such shares remain subject to the Company’s Reacquisition Right under the Award. 

Dated:                         
                        
  

	
	 
	(Signature)
	
	 
	(Print Name)

 Instructions: Please do not fill in any blanks other than the “Signature” line and the “Print
Name” line. 

 EXHIBIT B TO 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

JOINT ESCROW INSTRUCTIONS 
 Secretary 

Longboard Pharmaceuticals, Inc. 
 6154 Nancy Ridge Drive 

San Diego, California 92121 
 Dear Sir or Madam: 

As Escrow Agent for both Longboard Pharmaceuticals, Inc., a Delaware corporation (the “Company”), and the
undersigned recipient (“Recipient”) of Common Stock of the Company (the “Common Stock”), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of the
Restricted Stock Award Grant Notice (including all attachments and exhibits) dated September __, 2020 (the “Award”), to which a copy of these Joint Escrow Instructions is attached as Exhibit B to the Restricted Stock Award
Terms and Conditions (the “Agreement”, in accordance with the following instructions: 
 1. In the event
Recipient ceases to render services to the Company or an affiliate of the Company during the vesting period set forth in the Grant Notice, the Company or its affiliate or assignee, as applicable, will give to Recipient and you a written notice
specifying the number of shares of Common Stock that will be transferred to the Company. Recipient and the Company hereby irrevocably authorize and direct you to close the transaction contemplated by such notice in accordance with the terms of said
notice. 
 2. At the closing you are directed (a) to date any stock assignments necessary for the transfer in question,
(b) to fill in the number of shares of Common Stock being transferred, and (c) to deliver the same, together with the certificate evidencing the shares of Common Stock to be transferred, to the Company. 

3. Recipient irrevocably authorizes the Company to deposit with you any certificates evidencing shares of Common Stock to be held by you
hereunder and any additions and substitutions to said shares of Common Stock as specified in the Grant Notice and the Agreement. Recipient does hereby irrevocably constitute and appoint you as Recipient’s attorney-in-fact and agent for the term of this escrow to execute with respect to such securities and other property all documents of assignment and/or transfer and all stock certificates necessary or
appropriate to make all securities negotiable and complete any transaction herein contemplated. 
 4. This escrow will terminate and
the shares of Common Stock held hereunder will be released in full upon the full vesting of the shares of Common Stock in accordance with the vesting schedule set forth in the Grant Notice or upon the earlier return of the shares of Common Stock to
the Company pursuant to the Company’s Reacquisition Right (as defined in the Agreement) or other forfeiture condition under the Company’s 2020 Equity Incentive Plan. 

5. If at the time of termination of this escrow you should have in your possession any documents, securities, or other property
belonging to Recipient, you will deliver all of same to Recipient and will be discharged of all further obligations hereunder; provided, however, that if at the time of termination of this escrow you are advised by the Company that the
property subject to this escrow is the subject of a pledge or other security agreement, you will deliver all such property to the pledgeholder or other person designated by the Company. 

 6. Except as otherwise provided in these Joint Escrow Instructions, your duties
hereunder may be altered, amended, modified or revoked only by a writing signed by all of the parties hereto. 
 7. You will be
obligated only for the performance of such duties as are specifically set forth herein and may rely and will be protected in relying or refraining from acting on any instrument reasonably believed by you to be genuine and to have been signed or
presented by the proper party or parties or their assignees. You will not be personally liable for any act you may do or omit to do hereunder as Escrow Agent or as
attorney-in-fact for Recipient while acting in good faith and any act done or omitted by you pursuant to the advice of your own attorneys will be conclusive evidence of
such good faith. 
 8. You are hereby expressly authorized to disregard any and all warnings given by any of the parties hereto or by
any other person or corporation, excepting only orders or process of courts of law, and are hereby expressly authorized to comply with and obey orders, judgments or decrees of any court. In case you obey or comply with any such order, judgment or
decree of any court, you will not be liable to any of the parties hereto or to any other person, firm or corporation by reason of such compliance, notwithstanding any such order, judgment or decree being subsequently reversed, modified, annulled,
set aside, vacated or found to have been entered without jurisdiction. 
 9. You will not be liable in any respect on account of the
identity, authority or rights of the parties executing or delivering or purporting to execute or deliver the Grant Notice, the Agreement or any documents or papers deposited or called for hereunder. 

10. You will not be liable for the outlawing of any rights under any statute of limitations with respect to these Joint Escrow
Instructions or any documents deposited with you. 
 11. Your responsibilities as Escrow Agent hereunder will terminate if you cease
to be Secretary of the Company or if you resign by written notice to the Company. In the event of any such termination, the Secretary of the Company will automatically become the successor Escrow Agent unless the Company appoints another successor
Escrow Agent and Recipient hereby confirms the appointment of such successor as Recipient’s attorney-in-fact and agent to the full extent of your appointment. 

12. If you reasonably require other or further instruments in connection with these Joint Escrow Instructions or obligations in respect
hereto, the necessary parties hereto will join in furnishing such instruments. 
 13. It is understood and agreed that should any
dispute arise with respect to the delivery and/or ownership or right of possession of the securities, you are authorized and directed to retain in your possession without liability to anyone all or any part of said securities until such dispute has
been settled either by mutual written agreement of the parties concerned or by a final order, decree or judgment of a court of competent jurisdiction after the time for appeal has expired and no appeal has been perfected, but you will be under no
duty whatsoever to institute or defend any such proceedings. 
 14. Any notice or request required or permitted hereunder will be
given in writing to each of the other parties hereto and will be deemed effectively given on the earlier of (i) the date of personal delivery, including delivery by express courier, or delivery via electronic means, or (ii) the date that
is five days after deposit in the United States Post Office (whether or not actually received by the addressee), by registered or certified mail with postage and fees prepaid, addressed to each of the other parties hereunto entitled at the following
addresses, or at such other addresses as a party may designate by 10 days’ advance written notice to each of the other parties hereto: 

 
					
	Company:	  	Longboard Pharmaceuticals, Inc.	  	
		  	6154 Nancy Ridge Drive	  	
		  	 San Diego, California 92121
  

Attn: General Counsel / Chief Financial Officer
	  	
			
	Recipient:	  	  
	  	
		  	  
	  	
		  	  
	  	
		  	  
	  	
			
	Escrow Agent:        	  	Longboard Pharmaceuticals, Inc.	  	
		  	6154 Nancy Ridge Drive	  	
		  	 San Diego, California 92121
  

Attn: Corporate Secretary
	  	

 15. By signing these Joint Escrow Instructions you become a party hereto only for the purpose of
said Joint Escrow Instructions; you do not become a party to the Grant Notice or the Agreement. 
 16. You are entitled to employ such
legal counsel, including without limitation Cooley LLP, and other experts as you may deem necessary to advise you in connection with your obligations hereunder. You may rely upon the advice of such counsel, and may pay such counsel reasonable
compensation therefor. The Company will be responsible for all fees generated by such legal counsel in connection with your obligations hereunder. 

17. This instrument will be binding upon and inure to the benefit of the parties hereto, and their respective successors and permitted
assigns. It is understood and agreed that references to “you” or “your” herein refer to the original Escrow Agent and to any and all successor Escrow Agents. It is understood and agreed that the Company may at any time or from
time to time assign its rights under the Grant Notice, the Agreement and these Joint Escrow Instructions in whole or in part. 

[Remainder of page intentionally left blank] 

 18. These Joint Escrow Instructions will be governed by and interpreted and
determined in accordance with the laws of the State of Delaware without regard to that state’s conflicts of laws rules. The parties hereby expressly consent to the personal jurisdiction of the state and federal courts located in the county in
which the Company has its principal offices for any lawsuit arising from or related to this Agreement. 
  

			
	Very truly yours,
	
	Longboard Pharmaceuticals, Inc.
		
	By	 	
                     
   

		
	Title	 	  

	
	Recipient
	
	  

(Signature)

	
	  
 (Print
Name)

  

	
	Escrow Agent:
	  

	(Signature)
	  

	(Print Name)

 ATTACHMENT II 

2020 EQUITY INCENTIVE PLAN 

 ATTACHMENT III 

SECTION 83(B) ELECTION 

 [This Form is designed for Individual purchasers. Corporate or Trust purchasers should
contact their Tax Professional to review before submitting.] 
 Instructions for Filing Section 83(b) Election 

Attached is a form of election under Section 83(b) of the Internal Revenue Code and an accompanying IRS cover letter. Please complete and
sign the election and cover letter, then proceed as follows: 
  

	 	a)	 Make three copies of the completed election form and one copy of the IRS cover letter.

  

	 	b)	 Send the original signed election form and cover letter, the copy of the cover letter, and
a self-addressed stamped return envelope to the Internal Revenue Service Center where you would otherwise file your tax return.1 Even if an address for an Internal Revenue Service Center is
already included in the forms below, it is your obligation to verify such address. This can be done by searching for the term “where to file” on www.irs.gov or by calling 1 (800) 829-1040.

 Sending the election via certified mail, requesting a return receipt, with the certified mail number written on the
cover letter is also recommended. 
  

	 	c)	 Deliver one copy of the completed election form to the Company. 

 

	 	d)	 Applicable state law may require that you attach a copy of the completed election form to your state
personal income tax return(s) when you file it for the year (assuming you file a state personal income tax return).2 

Please consult your personal tax advisor(s) to determine whether or not a copy of this Section 83(b) election should be filed with your
state personal income tax return(s). 
  

	 	e)	 Retain one copy of the completed election form for your personal permanent records.

 Note: An additional copy of the completed election form must be delivered to the transferee (recipient) of the property if the service
provider and the transferee are not the same person. 
 Please note that the election must be filed with the IRS within 30 days of the date of
purchase/grant of the shares. Failure to file within that time will render the election void and you may recognize ordinary taxable income as your vesting restrictions lapse. The Company and its counsel cannot assume responsibility for failure
to file the election in a timely manner under any circumstances. 
   

 

	1 	 Note: Per Treasury Regulation § 1.83-2(c), the
Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. As of September 2018 if you live in a foreign country or are a dual status alien (foreigners that will have lived both in their
home country and the United States during the year in which they make the election) you should send the 83(b) election to Austin, TX 73301-0215. You can verify this is still the correct address at: http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. 

	2 	 Note: Pursuant to Treasury Regulations finalized in July 2016 (Treas. Reg. § 1.83-2(c); T.D. 9779), taxpayers are no longer required to submit a copy of a Code Sec. 83(b) election with their federal personal income tax returns for the year in which the property subject to the
election was transferred. However, you are strongly encouraged to retain a copy of the completed election form and the IRS filed-stamped copy of your cover letter along with a copy of the federal personal income tax return for the year in which the
property subject to the election was transferred for your personal permanent records in case you ever need to demonstrate proper and timely filing (a common requirement imposed by acquirers in M&A transactions).

 SECTION 83(b) ELECTION 

____________, 20_ 
 Department of the Treasury

 Internal Revenue Service 
 [City, State Zip]3[Austin, TX 73301-0215 
 USA]4 

	Re:	 Election Under Section 83(b) 

Ladies and Gentlemen: 
 The undersigned taxpayer hereby elects,
pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include in gross income as compensation for services the excess (if any) of the fair market value of the shares described below over the amount paid for those
shares. The following information is supplied in accordance with Treasury Regulation § 1.83-2: 
  

	1.	 The name, [social security number][taxpayer identification number], address of the undersigned, and the
taxable year for which this election is being made are: 

Name:                       
                  ____________ 
 [Social Security
Number][Tax Identification Number]:     ____________ 5 

Address:                      
               ____________ 

                        
                          ____________ 

Taxable year: Calendar year     ____________.6 

 

	2.	 The property that is the subject of this election: [#] shares of common stock of Longboard
Pharmaceuticals, Inc., a Delaware corporation (the “Company”). 

  

	3.	 The property was transferred on: [●]. 

 

	4.	 The property is subject to the following restrictions: Some or all of the shares are subject to
forfeiture or repurchase at less than their fair market value if the undersigned does not continue to provide services for the Company for a designated period of time. The risk of forfeiture or repurchase lapses over a specified vesting period.

  

	3 	 Note: Per Treasury Regulation § 1.83-2(c),
the Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. Assuming these are individual taxpayers who would file a Form 1040, see http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. Use the address in the row which includes the state in which the service provider lives and in the column entitled “And you ARE NOT enclosing a payment”.

	4 	 Note: Per Treasury Regulation § 1.83-2(c),
the Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. As of December 2018, if you live in a foreign country or are a dual status alien (foreigners that will have lived both in their
home country and the United States during the year in which they make the election) you should send the 83(b) election to Austin, TX 73301-0215. You can verify this is still the correct address at: http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. 

	5 	 Note: If you are not a US taxpayer and do not have a taxpayer ID number (TIN), put “None –non-US taxpayer” and include in the cover letter to the IRS a statement explaining that the Section 83(b) election is being filed because the individual may become a US taxpayer before the stock
vests. If the individual is applying for a TIN, instead include “applied for” and enclose a copy of the W-7 application. Note that there may be important factors to consider before applying for a
TIN, including immigration status, etc. 

	6 	 Note: If an entity is the service provider, instead use “Fiscal year ending ___.”

	5.	 The fair market value of the property at the time of transfer (determined without regard to any restriction
other than a nonlapse restriction as defined in Treasury Regulation § 1.83-3(h)): $[●] per share x [#] shares = $[●]. 

 

	6.	 For the property transferred, the undersigned paid: $[●] per share x [#] shares = $[●].

  

	7.	 The amount to include in gross income is:
$[●].7 

 The undersigned taxpayer will file this election with the Internal
Revenue Service office with which taxpayer files his or her annual income tax return not later than 30 days after the date of transfer of the property. A copy of the election also will be furnished to the person for whom the services were performed
and the transferee of the property. Additionally, the undersigned will include a copy of the election with his or her income tax return for the taxable year in which the property is transferred. The undersigned is the person performing the services
in connection with which the property was transferred. 
  

	
	Very truly yours,
	  

	[Name]

  

	7 	 Note: This should equal the amount in Item 5 minus the amount in Item 6, and in many cases will
be $0.00. 

 RETURN SERVICE REQUESTED 

Department of the Treasury 
 Internal Revenue Service 

[City, State, ZIP][Austin, TX 73301-0215 
 USA] 

 

	Re:	 Election Under Section 83(b) of the Internal Revenue Code

 Dear Sir or Madam: 

Enclosed please find an executed form of election under Section 83(b) of the Internal Revenue Code of 1986, as amended, filed with respect
to an interest in Longboard Pharmaceuticals, Inc. 
 [Please note, the undersigned does not currently have a Tax Identification Number
because the undersigned is not a U.S. taxpayer, but may become a U.S. resident before the stock vests.] 
 Also enclosed is a copy of the
signed form of election under Section 83(b). Please acknowledge receipt of these materials by marking the copy when received and returning it in the enclosed stamped, self-addressed envelope. 

Thank you very much for your assistance. 
  

	
	Very truly yours,
	  

	[Name]

 Enclosures 

 LONGBOARD PHARMACEUTICALS, INC. 

RESTRICTED STOCK AWARD GRANT NOTICE 

(2020 EQUITY INCENTIVE PLAN) 
 Longboard
Pharmaceuticals, Inc. (the “Company”), pursuant to its 2020 Equity Incentive Plan (the “Plan”), hereby awards to Participant the right to purchase the number of shares of Common Stock (the
“Shares”) set forth below (the “Award”). The Award is subject to all of the terms and conditions as set forth in this Restricted Stock Award Grant Notice (the “Grant Notice”)
and the attached Restricted Stock Award Terms and Conditions (together with the Grant Notice, the “Award Agreement”), and the Plan, all of which are attached to this Grant Notice and incorporated into this Grant Notice in
their entirety. Capitalized terms not explicitly defined in the Award Agreement but defined in the Plan will have the meanings provided in the Plan. If the Company uses an electronic capitalization table system (such as Carta or Shareworks) and the
fields below are blank or the information is otherwise provided in a different format electronically, the blank fields and other information (such as exercise schedule and type of grant) shall be deemed to come from the electronic capitalization
system and is considered part of this Grant Notice. 
  

					
	Participant:	  	  
	  	
	Date of Grant:	  	  
	  	
	Vesting Commencement Date:	  	  
	  	
	Number of Shares Subject to Award:	  	  
	  	
	Purchase Price per Share:	  	  
	  	
	Total Purchase Price:	  	  
	  	
	Consideration:	  	Cash, check or wire transfer	  	

  

	Vesting Schedule:	 [Sample of standard vesting. 12/48ths of the total shares will vest on the one-year anniversary of the Vesting Commencement Date, and 1/48th of the total shares will vest each month thereafter on the same day of the month as the Vesting Commencement Date (or if there is no corresponding
day, on the last day of the month), subject to Participant’s Continuous Service as of each such date]. 

 Additional
Terms/Acknowledgements: Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts this Award subject to all of the terms and provisions of the Plan
and this Award Agreement (including all attachments and exhibits) and has had an opportunity to obtain the advice of counsel prior to executing and accepting the Award. By accepting this Award, Participant hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Board upon any questions arising under the Plan or this Award. 
 Participant further consents
to receive any documents related to the Plan by electronic delivery and to participate in the Plan through an online or electronic system established and maintained by the Company or a third party designated by the Company. 

Participant further acknowledges that as of the Date of Grant, this Award Agreement and the Plan set forth the entire understanding between Participant and
the Company regarding the acquisition of stock in the Company and supersede all prior oral and written agreements on that subject, with the exception of (i) options, restricted stock awards or other compensatory stock awards previously granted
and delivered to Participant, and (ii) any written employment or severance arrangement that would provide for vesting acceleration of this Award upon the terms and conditions set forth therein. 

 Participant further acknowledges that this Award Agreement has been prepared on behalf of the Company by
Cooley LLP, counsel to the Company and that Cooley LLP does not represent, and is not acting on behalf of, Participant in any capacity. Participant has been provided with an opportunity to consult with Participant’s own counsel with respect to
this Award Agreement. 
 This Award may be executed in one or more counterparts, each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument. Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act or other
applicable law) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes. 

 

					
	Longboard Pharmaceuticals, Inc.	  		  	Participant:
			
	By:                                     
                                        	  	                        	  	  

	Signature	  		  	Signature
			
	Title:                                     
                                      	  		  	Date:                                     
                                        

			
	Date:                                     
                                      	  		  	

 Attachments: 
  

			
	Attachment I:	  	Restricted Stock Award Terms and Conditions
	 Exhibit A:
	  	Assignment Separate from Certificate
	 Exhibit B :
	  	Joint Escrow Instructions
		
	Attachment II:	  	2020 Equity Incentive Plan
	Attachment III:            	  	Section 83(b) Election

 ATTACHMENT I 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

 LONGBOARD PHARMACEUTICALS, INC. 

(2020 EQUITY INCENTIVE PLAN) 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

Longboard Pharmaceuticals, Inc. (the “Company”) has awarded you the right to purchase the number of Shares
indicated in the Grant Notice (the “Award”) pursuant to its 2020 Equity Incentive Plan (the “Plan”). The Grant Notice and these Restricted Stock Award Terms and Conditions are collectively referred to
as the “Award Agreement”. Capitalized terms not explicitly defined in this Agreement but defined in the Plan will have the same meanings given to them in the Plan. 

The details of your Award, in addition to those set forth in the Grant Notice and the Plan, are as follows: 

1. Agreement to Purchase; Closing. You agree to purchase from the Company, and the Company agrees to sell to you, the aggregate
number of shares of Common Stock specified in your Grant Notice at the specified Purchase Price per Share. You may not purchase less than the aggregate number of shares specified in the Grant Notice. You may purchase the shares by delivering the
Total Purchase Price referenced in your Grant Notice to the Secretary of the Company, or to such other person as the Company may designate, during regular business hours, within 30 days following the Date of Grant specified in the Grant Notice (or
at such other time and place as you and the Company may mutually agree upon in writing) along with the documents referenced in Section 2 below and such additional documents as the Company may then require. 

2. Escrow of Shares. As security for your faithful performance of the terms of this Award Agreement and to ensure the
availability for delivery of the Unvested Shares upon exercise of the Repurchase Right, you agree that the Shares will be held in escrow pursuant to the terms of the Joint Escrow Instructions attached to this Agreement as Exhibit B. You agree
to execute and deliver to the individual designated as the escrow agent in the Joint Escrow Instructions or person’s designee (the “Escrow Agent”), (i) the Joint Escrow Instructions and (ii) two Assignment Separate
From Certificate forms duly endorsed (with date and number of shares blank) substantially in the form attached to this Agreement as Exhibit A and deliver the same, along with the certificate or certificates evidencing the Unvested Shares,
which will be held and used by the Escrow Agent pursuant to the terms of the Joint Escrow Instructions. 
 3. Vesting. Subject
to the limitations contained herein, the Shares will vest pursuant to the Vesting Schedule in the Grant Notice, provided that vesting will cease upon the termination of your Continuous Service. “Vested Shares” will mean
Shares that have vested in accordance with the Vesting Schedule, and “Unvested Shares” will mean Shares that have not vested in accordance with the Vesting Schedule. 

4. Capitalization Adjustments. The number of Shares subject to your Award may be adjusted from time to time for Capitalization
Adjustments. In the event of any such Capitalization Adjustments, new, substituted or additional securities or other property to which you are entitled by reason of your ownership of the Unvested Shares will be immediately subject to the same
vesting requirements and vesting schedule that is applicable to the Shares with respect to which such additional Shares relate, as well as all transfer restrictions contained in this Award Agreement, including the Repurchase Right, the Right of
First Refusal and the Lock-Up Period (each as defined below). No fractional shares or rights for fractional shares will be created pursuant to this Section. Any fraction of a share will be rounded down to the
nearest whole share. 

  
 1 

 5. Securities Law Compliance. The Shares are not registered under the
Securities Act. At this time, the Company has determined that the issuance of the Shares under this Award is exempt from the registration requirements of the Securities Act. If the Company determines at any time that an exemption from the
registration requirements of the Securities Act was not available or that the issuance of the Shares otherwise would not comply with any other applicable laws and regulations, then the Company will not be obligated to issue the Shares or may rescind
the award to you. 
 6. Transfer Restrictions. In addition to any other limitation on transfer created by the Company’s
bylaws and applicable securities laws, you may not Transfer all or any part of the Unvested Shares or any interest in the Unvested Shares while such shares are subject to the Repurchase Right (as defined below) or continue to be held by the Escrow
Agent (as defined below) or by the Company’s transfer agent in restricted book entry form. In the case of Vested Shares, you may not Transfer the Vested Shares or any interest in the Vested Shares except in compliance with this Award Agreement,
including without limitation the Right of First Refusal (as defined below), the Company’s bylaws and applicable securities laws. As used in this Award Agreement, the term “Transfer” means any sale, encumbrance, pledge,
gift or other form of disposition or transfer of shares of Common Stock or any legal or equitable interest therein; provided, however, that the term Transfer does not include a transfer of such shares or interests by will or intestacy to your
Immediate Family. In such case, the transferee or other recipient will receive and hold the Shares so transferred subject to the provisions of this Award Agreement, and there will be no further transfer of such shares except in accordance with the
terms of this Award Agreement. The term “Immediate Family” will mean your spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of you or your
spouse, or the spouse of any child, adopted child, grandchild or adopted grandchild of you or your spouse. 
 7. Unvested Share Repurchase
Right. 
 (a) Repurchase Right. In the event your Continuous Service terminates, the Company will have an irrevocable
option (the “Repurchase Right”) for a period of ninety (90) days after the termination of your Continuous Service, or such longer period as may be agreed to by you and the Company, to repurchase from you or your personal
representative, as the case may be, any and all Unvested Shares as of such termination date. 
 (b) Shares Repurchasable at the
Lower of your Original Purchase Price or Fair Market Value. The Company may repurchase all or any of the Unvested Shares at a price equal to the lower of your Purchase Price for such shares as indicated on your Grant Notice or the Fair
Market Value of the Unvested Shares on the date of repurchase. 
 (c) Exercise of Repurchase Right. Unless the Company notifies
you within 90 days from the date of termination of your Continuous Service that it does not intend to exercise the Repurchase Right with respect to some or all of the Unvested Shares, the Repurchase Right shall be deemed automatically
exercised by the Company as of the 90th day following such termination, provided that the Company may notify you that it is exercising the Repurchase Right as of a date prior to such 90th day. Unless you are otherwise notified by the Company
pursuant to the preceding sentence that the Company does not intend to exercise the Repurchase Right as to some or all of the Unvested Shares to which it applies at the time of termination, execution of this Agreement by you constitutes written
notice to you of the Company’s intention to exercise the Repurchase Right with respect to all Unvested Shares to which the Repurchase Right applies. The Company, at its election, may satisfy its payment obligation to you with respect to
exercise of the Repurchase Right by either (A) delivering a check to you in the amount of the purchase price for the Unvested Shares being repurchased, or (B) in the event you are indebted to the Company, canceling an amount of such
indebtedness equal to the purchase price for the Unvested Shares being repurchased, or (C) by a combination of (A) and (B) so that the combined payment and cancellation 

  
 2 

 
of indebtedness equals such purchase price. In the event of any deemed automatic exercise of the Repurchase Right pursuant to this Section in which you are indebted to the Company, such
indebtedness equal to the purchase price of the Unvested Shares being repurchased shall be deemed automatically canceled as of the 90th day following termination of your Continuous Service unless the Company otherwise satisfies its
payment obligations. As a result of any repurchase of Unvested Shares pursuant to this Section, the Company will become the legal and beneficial owner of the Unvested Shares being repurchased and all rights and interests in and related to such
shares, and the Company will have the right to transfer to its own name the Unvested Shares being repurchased by the Company, without further action by you. Notwithstanding anything to the contrary in this Section or in this Award Agreement, the
Company may elect to waive, in its sole discretion, its Repurchase Right in whole or in part by providing written notice to you (with a copy to the Escrow Agent), at any time prior to the expiration of the Repurchase Right, and the Escrow Agent may
then release to you the number of Shares not being repurchased by the Company. 
 (d) Corporate Transactions. To the extent the
Repurchase Right remains in effect following a Corporate Transaction or Change in Control, unless otherwise provided by the Board pursuant to the terms of the Plan, it will apply to the new capital stock, cash or other property received in exchange
for the Unvested Shares in consummation of the Corporate Transaction or Change in Control, as applicable, but only to the extent the Unvested Shares were at the time covered by such right. 

(e) Termination of Repurchase Right. The Company’s Repurchase Right will terminate upon the earlier of (i) the
Company’s reacquisition in full of the Unvested Shares (or waiver of the Repurchase Right) and (ii) the expiration of the Repurchase Right. 

8. Right of First Refusal. Shares that are received under your Award are subject to any right of first refusal that may be
described in the Company’s bylaws in effect at such time the Company elects to exercise its right; provided, however, that if there is no right of first refusal described in the Company’s bylaws at such time, the right of first
refusal described below (the “Right of First Refusal”) will apply. The Right of First Refusal will expire on the first date upon which any security of the Company is listed (or approved for listing) upon notice of issuance on
a national securities exchange or quotation system (the “Listing Date”). 
 (a) Prior to the Listing Date, you
may not validly Transfer any Shares received under the Award, or any interest in such shares, unless such Transfer is made in compliance with the following provisions: 

(i) Before there can be a valid Transfer of any Shares or any interest therein, the record holder of the Shares to be transferred (the
“Offered Shares”) will give written notice (by registered or certified mail) to the Company (the “ROFR Notice”). Such notice will specify the identity of the proposed transferee, the cash price offered
for the Offered Shares by the proposed transferee (or, if the proposed Transfer is one in which the holder will not receive cash, such as an involuntary transfer, gift, donation or pledge, the holder will state that no purchase price is being
proposed), and the other terms and conditions of the proposed Transfer. The date such notice is mailed will be hereinafter referred to as the “Notice Date” and the record holder of the Offered Shares will be hereinafter
referred to as the “Offeror.” 
 (ii) For a period of 30 calendar days after the Notice Date, the Company
will have the option to exercise its Right of First Refusal and purchase all or any portion of the Offered Shares at the purchase price and on the terms set forth in this Section. In the event that the proposed Transfer is one involving no payment
of a purchase price, the purchase price will be deemed to be the Fair Market Value of the Offered Shares as determined in good faith by the Board in its discretion. The Company may exercise its Right of First Refusal by mailing (by registered or
certified mail) written notice of exercise of its Right of First Refusal to the Offeror prior to the end of said 30 days. 

  
 3 

 (iii) The price at which the Company may purchase the Offered Shares pursuant to the
exercise of its Right of First Refusal will be the cash price offered for the Offered Shares by the proposed transferee (as set forth in the ROFR Notice), or the Fair Market Value as determined by the Board in the event no purchase price is
involved. To the extent consideration other than cash is offered by the proposed transferee, the Company will not be required to pay any additional amounts to the Offeror other than the cash price offered (or the Fair Market Value, if applicable).
The Company’s notice of exercise of its Right of First Refusal will be accompanied by full payment for the Offered Shares and, upon such payment by the Company, the Company will acquire full right, title and interest to all of the Offered
Shares. 
 (iv) If, and only if, the Company elects not to exercise its Right of First Refusal as to the Offered Shares, the Transfer
proposed in the ROFR Notice may take place; provided, however, that such Transfer must, in all respects, be exactly as proposed in said notice except that such Transfer may not take place either before the 10th calendar day after the expiration of the 30 day option exercise period or after the 90th calendar day after the expiration of the 30 day option
exercise period, and if such Transfer has not taken place prior to said 90th day, such Transfer may not take place without once again complying with this Section. 

(b) None of the shares of Common Stock received under the Award will be transferred on the Company’s books nor will the Company
recognize any such Transfer of any such shares or any interest therein unless and until all applicable provisions of this Section have been complied with in all respects. The certificates of stock evidencing Shares received under the Award will bear
an appropriate legend referring to the transfer restrictions imposed by this Section. 
 9.
Lock-Up Period. By accepting your Award, you agree that you will not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar
transaction with the same economic effect as a sale with respect to any shares of Common Stock or other securities of the Company held by you, for a period of 180 days following the effective date of a registration statement of the Company filed
under the Securities Act or such longer period as the underwriters or the Company will request to facilitate compliance with applicable FINRA rules (the “Lock-Up Period”); provided,
however, that nothing contained in this Section will prevent the exercise of a reacquisition or repurchase option, if any, in favor of the Company during the Lock-Up Period. You further agree to execute
and deliver such other agreements as may be reasonably requested by the Company or the underwriters that are consistent with the foregoing or that are necessary to give further effect to the foregoing covenant. You also agree that any transferee of
any other shares of Common Stock (or other securities) of the Company held by you will be bound by this Section. To enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to your shares of Common Stock until
the end of such period. The underwriters of the Company’s stock are intended third party beneficiaries of this Section and will have the right, power and authority to enforce the provisions of this Section as though they were a party to this
Award Agreement. You further agree that the obligations contained in this Section 8 shall also, if so determined by the Company’s Board of Directors, apply in the Company’s initial listing of its Common Stock on a national securities
exchange by means of a registration statement on Form S-1 under the Securities Act (or any successor registration form under the Securities Act subsequently adopted by the Securities and Exchange Commission)
filed by the Company with the Securities and Exchange Commission that registers shares of existing capital stock of the Company for resale (a “Direct Listing”) (and, for avoidance of doubt, the
Lock-Up Period shall be deemed to include the period following the Direct Listing during which the restrictions under this Section 8 apply) provided that all holders of at least 5% of the Company’s
outstanding Common Stock (after giving effect to the conversion into Common Stock of any outstanding Preferred Stock of the Company) are subject to substantially similar obligations with respect to such Direct Listing. 

  
 4 

 10. Rights as Stockholder. 

(a) General. Subject to the provisions of this Award Agreement, you will exercise all rights and privileges of a stockholder of
the Company with respect to the Shares, including for purposes of exercising any voting rights relating to any Unvested Shares. 
 (b)
Dividends. You will be deemed to be the holder of the Unvested Shares for purposes of receiving any dividends that may be paid with respect to such Shares; provided, however, that any dividends or other distributions paid with respect
to the Unvested Shares shall be subject to all of the terms and conditions applicable under this Award Agreement to the same extent as the Unvested Shares. For clarity, cash dividends made prior to the vesting of any Unvested Shares will be withheld
and paid to you (without interest) only if, when and to the extent, such Shares become Vested Shares. 
 11. Waiver of
Information Rights. You hereby acknowledge and agree that, except for such information as required to be delivered to you by the Company pursuant to any other agreement by and between you and the Company, you shall have no right to receive any
information from the Company by virtue of your purchase of the Shares, ownership of the Shares, or as a result of you being a holder of record of stock of the Company. Without limiting the foregoing, to the fullest extent permitted by law, you
hereby waive your inspection rights under Section 220 of the Delaware General Corporation Law and all such similar information and/or inspection rights that may be provided under the law of any jurisdiction, or any federal, state or foreign
regulation, that are, or may become, applicable to the Company, the Company’s capital stock or the Shares (the “Inspection Rights”). You hereby covenant and agree never to directly or indirectly commence,
voluntarily aid in any way, prosecute, assign, transfer, or cause to be commenced any claim, action, cause of action, or other proceeding to pursue or exercise the Inspection Rights. 

12. Restrictive Legends. All certificates representing the Common Stock issued under your Award will be endorsed with
appropriate legends determined by the Company in substantially the following forms (in addition to any other legend that may be required by other agreements between you and the Company): 

(a) “THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A REPURCHASE RIGHT AND OTHER RESTRICTIONS AND CONDITIONS SET FORTH
IN A RESTRICTED STOCK AWARD AGREEMENT BETWEEN THE COMPANY AND THE REGISTERED HOLDER, OR SUCH HOLDER’S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE COMPANY’S PRINCIPAL CORPORATE OFFICES. ANY TRANSFER OR ATTEMPTED TRANSFER OF
ANY SHARES SUBJECT TO SUCH RIGHT IS VOID WITHOUT THE PRIOR EXPRESS WRITTEN CONSENT OF THE COMPANY.” 
 (b) “THE SHARES
REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER
SAID ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.” 
 (c) “THE SHARES
REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RIGHTS OF REFUSAL GRANTED TO THE COMPANY AND/OR ITS ASSIGNEE(S) AND ACCORDINGLY MAY NOT BE SOLD, ASSIGNED, TRANSFERRED, ENCUMBERED OR IN ANY MANNER DISPOSED OF EXCEPT IN CONFORMITY WITH THE
TERMS OF THE BYLAWS OF THE COMPANY AND/OR A RESTRICTED STOCK AWARD AGREEMENT BETWEEN THE COMPANY AND THE REGISTERED HOLDER, OR SUCH HOLDER’S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE COMPANY’S PRINCIPAL CORPORATE
OFFICES.” 

  
 5 

 (d) “THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A TRANSFER
RESTRICTION, AS PROVIDED IN THE BYLAWS OF THE COMPANY.” 
 (e) Any legend required by appropriate blue sky officials. 

13. Investment Representations. In connection with your acquisition of the Common Stock under your Award, you represent to
the Company the following: 
 (a) You are aware of the Company’s business affairs and financial condition and have acquired
sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Shares. You are acquiring the Shares for investment for your own account only and not with a view to, or for resale in connection with, any
“distribution” thereof within the meaning of the Securities Act. 
 (b) You understand that the Shares have not been
registered under the Securities Act by reason of a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of your investment intent as expressed in this Award Agreement. 

(c) You further acknowledge and understand that the Shares must be held indefinitely unless the Shares are subsequently registered under
the Securities Act or an exemption from such registration is available. You further acknowledge and understand that the Company is under no obligation to register the Common Stock. You understand that the certificate evidencing the Common Stock will
be imprinted with a legend that prohibits the transfer of the Common Stock unless the Common Stock is registered or such registration is not required in the opinion of counsel for the Company. 

(d) You are familiar with the provisions of Rule 701 and Rule 144 promulgated under the Securities Act (“Rule
144”), as in effect from time to time, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly, from the issuer thereof (or from an affiliate of such issuer), in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of issuance of the securities, such issuance will be exempt from
registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, the securities exempt under Rule 701 may be sold by you 90 days thereafter, subject
to the satisfaction of certain of the conditions specified by Rule 144 and by the agreement(s) relating to the Lock-Up Period. 

(e) In the event that the sale of the Shares does not qualify under Rule 701 at the time of issuance, then the Shares may be resold
by you in certain limited circumstances subject to the provisions of Rule 144, which requires, among other things: (i) the availability of certain public information about the Company; and (ii) the resale occurring following the required
holding period under Rule 144 after you have purchased, and made full payment of (within the meaning of Rule 144), the securities to be sold. 

(f) You further understand that at the time you wish to sell the Shares, there may be no public market upon which to make such a sale,
and that, even if such a public market then exists, the Company may not be satisfying the current public current information requirements of Rule 144 or 701, and that, in such event, you would be precluded from selling the Shares under Rule 144 or
701 even if the minimum holding period requirement had been satisfied. 

  
 6 

 14. Withholding Obligations. 

(a) At the time your Award is made, or at any time thereafter as requested by the Company, you hereby authorize withholding from
payroll and any other amounts payable to you, and otherwise agree to make adequate provision for any sums required to satisfy the federal, state, local and foreign tax withholding obligations of the Company or an Affiliate, if any, which arise in
connection with your Award (the “Withholding Taxes”). The Company may, in its sole discretion, satisfy all or any portion of the Withholding Taxes obligation relating to your Award by any of the following means or by a
combination of such means: (i) withholding from any amounts otherwise payable to you by the Company; (ii) causing you to tender a cash payment; or (iii) withholding Shares issued or otherwise issuable to you in connection with the
Award with a Fair Market Value equal to the amount of such Withholding Taxes; provided, however, that the number of such Shares withheld may not exceed the amount necessary to satisfy the Company’s required tax withholding obligations
using the minimum statutory withholding rates for federal, state, local and foreign tax purposes, including payroll taxes, that are applicable to supplemental taxable income. 

(b) Unless the tax withholding obligations of the Company and any Affiliate are satisfied, the Company will have no obligation to issue
a certificate for such Shares or release such Shares from any escrow provided for in this Award Agreement. 
 15. Tax Consequences.
You agree to review with your own tax advisors the federal, state, local and foreign tax consequences of this investment and the transactions contemplated by this Award. You will rely solely on such advisors and not on any statements or
representations of the Company or any of its agents. You understand that you (and not the Company) will be responsible for your own tax liability that may arise as a result of this investment or the transactions contemplated by this Award. You
understand that Section 83 of the Code taxes as ordinary income to you the fair market value of the Shares issued to you pursuant to the Award as of the date any restrictions on such shares lapse (that is, as of the date on which part or all of
such shares vest). In this context, “restriction” includes the right of the Company to reacquire the Shares pursuant to the Repurchase Right set forth above. You understand that you may elect to be taxed at the time the Shares are issued
to you pursuant to your Award, rather than when and as the Repurchase Right expires, by filing an election under Section 83(b) of the Code (an “83(b) Election”) with the Internal Revenue Service within 30 days after the
date your acquire Shares pursuant to your Award. Even if the fair market value of the Common Stock at the time of grant of your Award equals the amount paid for the Shares (if anything), the 83(b) Election must be made to avoid income under
Section 83(a) in the future. You understand that failure to file such an 83(b) Election in a timely manner may result in adverse tax consequences for you. You acknowledge that the foregoing is only a summary of the effect of U.S. federal income
taxation with respect to issuance of the Shares pursuant to your Award, and does not purport to be complete. You further acknowledge that the Company has directed you to seek independent advice regarding the applicable provisions of the Code, the
income tax laws of any municipality, state or foreign country in which you may reside, and the tax consequences of your death. You assume all responsibility for filing an 83(b) Election and paying all taxes resulting from such election or the lapse
of the restrictions on the Shares. YOU ACKNOWLEDGE THAT IT IS YOUR OWN RESPONSIBILITY, AND NOT THE COMPANY’S, TO FILE A TIMELY 83(b) ELECTION. THE COMPANY AND ITS LEGAL COUNSEL CANNOT ASSUME RESPONSIBILITY FOR FAILURE TO FILE THE
83(b) ELECTION IN A TIMELY MANNER UNDER ANY CIRCUMSTANCES. 
 16. Severability. If all or any part of this Award Agreement
or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity will not invalidate any portion of this Award Agreement or the Plan not declared to be unlawful or invalid. Any Section of this
Award Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining
lawful and valid. 

  
 7 

 17. Governing Law. The interpretation, performance and enforcement of this
Award Agreement shall be governed by the law of the State of Delaware without regard to that state’s conflicts of laws rules. 

18. Notices. Any notice or request required or permitted hereunder will be given in writing to each of the other parties hereto
and will be deemed effectively given on the earlier of (i) the date of personal delivery, including delivery by express courier, or delivery via electronic means, or (ii) the date that is five days after deposit in the United States Post
Office (whether or not actually received by the addressee), by registered or certified mail with postage and fees prepaid, addressed to the Company at its primary executive offices, attention: Stock Plan Administrator, and addressed to you at your
address as on file with the Company at the time notice is given. 
 19. Imposition of Other Requirements. As a condition to the
grant of your Award or to the Company’s the issuance of any Shares under this Award, the Company may require you to execute further documents or instruments necessary or desirable in the sole determination of the Company to carry out the
purposes or intent of your Award. In addition, you may be required to execute certain customary agreements entered into with the holders of capital stock of the Company, including without limitation a right of first refusal and co-sale agreement, stockholders agreement and a voting agreement. 

  
 8 

 EXHIBIT A TO 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

ASSIGNMENT SEPARATE FROM CERTIFICATE 

For Value Received and pursuant to that certain Restricted Stock Award Grant Notice dated ____________ (the
“Award”), [Participant’s Name] hereby sells, assigns and transfers unto Longboard Pharmaceuticals, Inc., a Delaware corporation (the “Company”) _______________ shares of the Common Stock of
the Company, standing in the undersigned’s name on the books of the Company represented by Certificate No(s). _____ and does hereby irrevocably constitute and appoint the Company’s Secretary as attorney-in-fact to transfer the said Common Stock on the books of the Company with full power of substitution in the premises. This Assignment Separate From Certificate may be used only in accordance
with and subject to the terms and conditions of the Award, in connection with the repurchase of shares of Common Stock of the Company issued to the undersigned pursuant to the Award, and only to the extent that such shares remain subject to the
Company’s Repurchase Right under the Award. 

Dated:                         
                    
  

	
	  

	(Signature)
	  

	(Print Name)

 Instructions: Please do not fill in any blanks other than the “Signature” line and the “Print
Name” line. 

 EXHIBIT B TO 

RESTRICTED STOCK AWARD TERMS AND CONDITIONS 

JOINT ESCROW INSTRUCTIONS 
 Secretary 

Longboard Pharmaceuticals, Inc. 
 6154 Nancy Ridge Drive 

San Diego, California 92121 
 Dear Sir or Madam: 

As Escrow Agent for both Longboard Pharmaceuticals, Inc., a Delaware corporation (the “Company”), and the
undersigned recipient (“Recipient”) of Common Stock of the Company (the “Common Stock”), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of the
Restricted Stock Award Grant Notice (including all attachments and exhibits) dated September __, 2020 (the “Award”), to which a copy of these Joint Escrow Instructions is attached as Exhibit B to the Restricted Stock Award
Terms and Conditions (the “Agreement”, in accordance with the following instructions: 
 1. In the event
Recipient ceases to render services to the Company or an affiliate of the Company during the vesting period set forth in the Grant Notice, the Company or its affiliate or assignee, as applicable, will give to Recipient and you a written notice
specifying the number of shares of Common Stock that will be transferred to the Company. Recipient and the Company hereby irrevocably authorize and direct you to close the transaction contemplated by such notice in accordance with the terms of said
notice. 
 2. At the closing you are directed (a) to date any stock assignments necessary for the transfer in question,
(b) to fill in the number of shares of Common Stock being transferred, and (c) to deliver the same, together with the certificate evidencing the shares of Common Stock to be transferred, to the Company. 

3. Recipient irrevocably authorizes the Company to deposit with you any certificates evidencing shares of Common Stock to be held by you
hereunder and any additions and substitutions to said shares of Common Stock as specified in the Grant Notice and the Agreement. Recipient does hereby irrevocably constitute and appoint you as Recipient’s attorney-in-fact and agent for the term of this escrow to execute with respect to such securities and other property all documents of assignment and/or transfer and all stock certificates necessary or
appropriate to make all securities negotiable and complete any transaction herein contemplated. 
 4. This escrow will terminate and
the shares of Common Stock held hereunder will be released in full upon the full vesting of the shares of Common Stock in accordance with the vesting schedule set forth in the Grant Notice or upon the earlier return of the shares of Common Stock to
the Company pursuant to the Company’s Repurchase Right (as defined in the Agreement) or other forfeiture condition under the Company’s 2020 Equity Incentive Plan. 

5. If at the time of termination of this escrow you should have in your possession any documents, securities, or other property
belonging to Recipient, you will deliver all of same to Recipient and will be discharged of all further obligations hereunder; provided, however, that if at the time of termination of this escrow you are advised by the Company that the
property subject to this escrow is the subject of a pledge or other security agreement, you will deliver all such property to the pledgeholder or other person designated by the Company. 

 6. Except as otherwise provided in these Joint Escrow Instructions, your duties
hereunder may be altered, amended, modified or revoked only by a writing signed by all of the parties hereto. 
 7. You will be
obligated only for the performance of such duties as are specifically set forth herein and may rely and will be protected in relying or refraining from acting on any instrument reasonably believed by you to be genuine and to have been signed or
presented by the proper party or parties or their assignees. You will not be personally liable for any act you may do or omit to do hereunder as Escrow Agent or as
attorney-in-fact for Recipient while acting in good faith and any act done or omitted by you pursuant to the advice of your own attorneys will be conclusive evidence of
such good faith. 
 8. You are hereby expressly authorized to disregard any and all warnings given by any of the parties hereto or by
any other person or corporation, excepting only orders or process of courts of law, and are hereby expressly authorized to comply with and obey orders, judgments or decrees of any court. In case you obey or comply with any such order, judgment or
decree of any court, you will not be liable to any of the parties hereto or to any other person, firm or corporation by reason of such compliance, notwithstanding any such order, judgment or decree being subsequently reversed, modified, annulled,
set aside, vacated or found to have been entered without jurisdiction. 
 9. You will not be liable in any respect on account of the
identity, authority or rights of the parties executing or delivering or purporting to execute or deliver the Grant Notice, the Agreement or any documents or papers deposited or called for hereunder. 

10. You will not be liable for the outlawing of any rights under any statute of limitations with respect to these Joint Escrow
Instructions or any documents deposited with you. 
 11. Your responsibilities as Escrow Agent hereunder will terminate if you cease
to be Secretary of the Company or if you resign by written notice to the Company. In the event of any such termination, the Secretary of the Company will automatically become the successor Escrow Agent unless the Company appoints another successor
Escrow Agent and Recipient hereby confirms the appointment of such successor as Recipient’s attorney-in-fact and agent to the full extent of your appointment. 

12. If you reasonably require other or further instruments in connection with these Joint Escrow Instructions or obligations in respect
hereto, the necessary parties hereto will join in furnishing such instruments. 
 13. It is understood and agreed that should any
dispute arise with respect to the delivery and/or ownership or right of possession of the securities, you are authorized and directed to retain in your possession without liability to anyone all or any part of said securities until such dispute has
been settled either by mutual written agreement of the parties concerned or by a final order, decree or judgment of a court of competent jurisdiction after the time for appeal has expired and no appeal has been perfected, but you will be under no
duty whatsoever to institute or defend any such proceedings. 
 14. Any notice or request required or permitted hereunder will be
given in writing to each of the other parties hereto and will be deemed effectively given on the earlier of (i) the date of personal delivery, including delivery by express courier, or delivery via electronic means, or (ii) the date that
is five days after deposit in the United States Post Office (whether or not actually received by the addressee), by registered or certified mail with postage and fees prepaid, addressed to each of the other parties hereunto entitled at the following
addresses, or at such other addresses as a party may designate by 10 days’ advance written notice to each of the other parties hereto: 

 
					
	Company:	  	Longboard Pharmaceuticals, Inc.	  	
		  	6154 Nancy Ridge Drive	  	
		  	 San Diego, California 92121
  

Attn: General Counsel / Chief Financial Officer
	  	
			
	Recipient:	  	  
	  	
		  	  
	  	
		  	  
	  	
		  	  
	  	
			
	Escrow Agent:        	  	Longboard Pharmaceuticals, Inc.	  	
		  	6154 Nancy Ridge Drive	  	
		  	 San Diego, California 92121
  

Attn: Corporate Secretary
	  	

 15. By signing these Joint Escrow Instructions you become a party hereto only for the purpose of
said Joint Escrow Instructions; you do not become a party to the Grant Notice or the Agreement. 
 16. You are entitled to employ such
legal counsel, including without limitation Cooley LLP, and other experts as you may deem necessary to advise you in connection with your obligations hereunder. You may rely upon the advice of such counsel, and may pay such counsel reasonable
compensation therefor. The Company will be responsible for all fees generated by such legal counsel in connection with your obligations hereunder. 

17. This instrument will be binding upon and inure to the benefit of the parties hereto, and their respective successors and permitted
assigns. It is understood and agreed that references to “you” or “your” herein refer to the original Escrow Agent and to any and all successor Escrow Agents. It is understood and agreed that the Company may at any time or from
time to time assign its rights under the Grant Notice, the Agreement and these Joint Escrow Instructions in whole or in part. 

[Remainder of page intentionally left blank] 

 18. These Joint Escrow Instructions will be governed by and interpreted and
determined in accordance with the laws of the State of Delaware without regard to that state’s conflicts of laws rules. The parties hereby expressly consent to the personal jurisdiction of the state and federal courts located in the county in
which the Company has its principal offices for any lawsuit arising from or related to this Agreement. 
  

			
	Very truly yours,
	
	Longboard Pharmaceuticals, Inc.
		
	By	 	
                     
   

	Title	 	  

	
	Recipient
	
	  

(Signature)

	
	  
 (Print
Name)

  

	
	Escrow Agent:
	  

	(Signature)
	  

	(Print Name)

 ATTACHMENT II 

2020 EQUITY INCENTIVE PLAN 

 ATTACHMENT III 

SECTION 83(B) ELECTION 

 [This Form is designed for Individual purchasers. Corporate or Trust purchasers should
contact their Tax Professional to review before submitting.] 
 Instructions for Filing Section 83(b) Election 

Attached is a form of election under Section 83(b) of the Internal Revenue Code and an accompanying IRS cover letter. Please complete and
sign the election and cover letter, then proceed as follows: 
  

	 	a)	 Make three copies of the completed election form and one copy of the IRS cover letter.

  

	 	b)	 Send the original signed election form and cover letter, the copy of the cover letter, and
a self-addressed stamped return envelope to the Internal Revenue Service Center where you would otherwise file your tax return.1 Even if an address for an Internal Revenue Service Center is
already included in the forms below, it is your obligation to verify such address. This can be done by searching for the term “where to file” on www.irs.gov or by calling 1 (800) 829-1040.

 Sending the election via certified mail, requesting a return receipt, with the certified mail number written on the
cover letter is also recommended. 
  

	 	c)	 Deliver one copy of the completed election form to the Company. 

 

	 	d)	 Applicable state law may require that you attach a copy of the completed election form to your state
personal income tax return(s) when you file it for the year (assuming you file a state personal income tax return).2 

Please consult your personal tax advisor(s) to determine whether or not a copy of this Section 83(b) election should be filed with your
state personal income tax return(s). 
  

	 	e)	 Retain one copy of the completed election form for your personal permanent records.

 Note: An additional copy of the completed election form must be delivered to the transferee (recipient) of the property if the service
provider and the transferee are not the same person. 
 Please note that the election must be filed with the IRS within 30 days of the date of
purchase/grant of the shares. Failure to file within that time will render the election void and you may recognize ordinary taxable income as your vesting restrictions lapse. The Company and its counsel cannot assume responsibility for failure
to file the election in a timely manner under any circumstances. 
   

 

	1 	 Note: Per Treasury Regulation § 1.83-2(c), the
Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. As of September 2018 if you live in a foreign country or are a dual status alien (foreigners that will have lived both in their
home country and the United States during the year in which they make the election) you should send the 83(b) election to Austin, TX 73301-0215. You can verify this is still the correct address at: http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. 

	2 	 Note: Pursuant to Treasury Regulations finalized in July 2016 (Treas. Reg. § 1.83-2(c); T.D. 9779), taxpayers are no longer required to submit a copy of a Code Sec. 83(b) election with their federal personal income tax returns for the year in which the property subject to the
election was transferred. However, you are strongly encouraged to retain a copy of the completed election form and the IRS filed-stamped copy of your cover letter along with a copy of the federal personal income tax return for the year in which the
property subject to the election was transferred for your personal permanent records in case you ever need to demonstrate proper and timely filing (a common requirement imposed by acquirers in M&A transactions).

 SECTION 83(b) ELECTION 

____________, 20_ 
 Department of the Treasury

 Internal Revenue Service 
 [City, State Zip]3[Austin, TX 73301-0215 
 USA]4 

	Re:	 Election Under Section 83(b) 

Ladies and Gentlemen: 
 The undersigned taxpayer hereby elects,
pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include in gross income as compensation for services the excess (if any) of the fair market value of the shares described below over the amount paid for those
shares. The following information is supplied in accordance with Treasury Regulation § 1.83-2: 
  

	1.	 The name, [social security number][taxpayer identification number], address of the undersigned, and the
taxable year for which this election is being made are: 

Name:                       
                          ____________ 

[Social Security Number][Tax Identification Number]: ____________ 5 

Address:                      
                       ____________ 

Taxable year: Calendar year               ___________.6 
  

	2.	 The property that is the subject of this election: [#] shares of common stock of Longboard
Pharmaceuticals, Inc., a Delaware corporation (the “Company”). 

  

	3.	 The property was transferred on: [●]. 

 

	3 	 Note: Per Treasury Regulation § 1.83-2(c),
the Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. Assuming these are individual taxpayers who would file a Form 1040, see http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. Use the address in the row which includes the state in which the service provider lives and in the column entitled “And you ARE NOT enclosing a payment”.

	4 	 Note: Per Treasury Regulation § 1.83-2(c),
the Section 83(b) election must be filed with the IRS office where the person otherwise files his or her tax return. As of December 2018, if you live in a foreign country or are a dual status alien (foreigners that will have lived both in their
home country and the United States during the year in which they make the election) you should send the 83(b) election to Austin, TX 73301-0215. You can verify this is still the correct address at: http://www.irs.gov/uac/Where-to-File-Addresses-for--Taxpayers-and--Tax-Professionals-Filing-Form-1040
. 

	5 	 Note: If you are not a US taxpayer and do not have a taxpayer ID number (TIN), put “None –non-US taxpayer” and include in the cover letter to the IRS a statement explaining that the Section 83(b) election is being filed because the individual may become a US taxpayer before the stock
vests. If the individual is applying for a TIN, instead include “applied for” and enclose a copy of the W-7 application. Note that there may be important factors to consider before applying for a
TIN, including immigration status, etc. 

	6 	 Note: If an entity is the service provider, instead use “Fiscal year ending ___.”

	4.	 The property is subject to the following restrictions: Some or all of the shares are subject to
forfeiture or repurchase at less than their fair market value if the undersigned does not continue to provide services for the Company for a designated period of time. The risk of forfeiture or repurchase lapses over a specified vesting period.

  

	5.	 The fair market value of the property at the time of transfer (determined without regard to any restriction
other than a nonlapse restriction as defined in Treasury Regulation § 1.83-3(h)): $[●] per share x [#] shares = $[●]. 

 

	6.	 For the property transferred, the undersigned paid: $[●] per share x [#] shares = $[●].

  

	7.	 The amount to include in gross income is:
$[●].7 

 The undersigned taxpayer will file this election with the Internal
Revenue Service office with which taxpayer files his or her annual income tax return not later than 30 days after the date of transfer of the property. A copy of the election also will be furnished to the person for whom the services were performed
and the transferee of the property. Additionally, the undersigned will include a copy of the election with his or her income tax return for the taxable year in which the property is transferred. The undersigned is the person performing the services
in connection with which the property was transferred. 
  

	
	Very truly yours,
	  

	[Name]

  

	7 	 Note: This should equal the amount in Item 5 minus the amount in Item 6, and in many cases will
be $0.00. 

 RETURN SERVICE REQUESTED 

Department of the Treasury 
 Internal Revenue Service 

[City, State, ZIP][Austin, TX 73301-0215 
 USA] 

 

	Re:	 Election Under Section 83(b) of the Internal Revenue Code

 Dear Sir or Madam: 

Enclosed please find an executed form of election under Section 83(b) of the Internal Revenue Code of 1986, as amended, filed with respect
to an interest in Longboard Pharmaceuticals, Inc. 
 [Please note, the undersigned does not currently have a Tax Identification Number
because the undersigned is not a U.S. taxpayer, but may become a U.S. resident before the stock vests.] 
 Also enclosed is a copy of the
signed form of election under Section 83(b). Please acknowledge receipt of these materials by marking the copy when received and returning it in the enclosed stamped, self-addressed envelope. 

Thank you very much for your assistance. 
  

	
	Very truly yours,
	  

	[Name]

 EnclosuresEX-10.4

 Exhibit 10.4 

 
 LONGBOARD PHARMACEUTICALS,
INC. 
 2021 EQUITY INCENTIVE PLAN 

 
 ADOPTED BY THE
BOARD OF DIRECTORS: FEBRUARY 28, 2021 

APPROVED BY THE STOCKHOLDERS: MARCH 5, 2021

  

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	 1.
	 	General	  	 	1	 
			
	 2.
	 	Shares Subject to the Plan	  	 	1	 
			
	 3.
	 	Eligibility and Limitations	  	 	2	 
			
	 4.
	 	Options and Stock Appreciation Rights	  	 	3	 
			
	 5.
	 	Awards Other Than Options and Stock Appreciation Rights	  	 	7	 
			
	 6.
	 	Adjustments upon Changes in Common Stock; Other Corporate Events	  	 	9	 
			
	 7.
	 	Administration	  	 	11	 
			
	 8.
	 	Tax Withholding	  	 	14	 
			
	 9.
	 	Miscellaneous	  	 	15	 
			
	 10.
	 	Covenants of the Company	  	 	18	 
			
	 11.
	 	Additional Rules for Awards Subject to Section 409A	  	 	18	 
			
	 12.
	 	Severability	  	 	22	 
			
	 13.
	 	Termination of the Plan	  	 	22	 
			
	 14.
	 	Definitions	  	 	23	 

  

  
 i. 

 1. GENERAL. 

(a) Successor to and Continuation of Prior Plan. The Plan is the successor to and continuation of the Prior Plan.
As of the Effective Time, (i) no additional awards may be granted under any of the Prior Plan; (ii) the Prior Plan’s Available Reserve plus any Returning Shares will become available for issuance pursuant to Awards granted under this
Plan; and (iii) all outstanding awards granted under the Prior Plan will remain subject to the terms of the Prior Plan (except to the extent such outstanding awards result in Returning Shares that become available for issuance pursuant to
Awards granted under this Plan). All Awards granted under this Plan will be subject to the terms of this Plan. 
 (b)
Plan Purpose. The Company, by means of the Plan, seeks to secure and retain the services of Employees, Directors and Consultants, to provide incentives for such persons to exert maximum efforts for the success of the Company and any
Affiliate and to provide a means by which such persons may be given an opportunity to benefit from increases in value of the Common Stock through the granting of Awards. 

(c) Available Awards. The Plan provides for the grant of the following Awards: (i) Incentive Stock Options;
(ii) Nonstatutory Stock Options; (iii) SARs; (iv) Restricted Stock Awards; (v) RSU Awards; (vi) Performance Awards; and (vii) Other Awards. 

(d) Adoption Date; Effective Time. The Plan will come into existence on the Adoption Date, but no Award may be granted
prior to the Effective Time. 
 2. SHARES SUBJECT TO THE PLAN. 

(a) Share Reserve. Subject to adjustment in accordance with Section 2(c) and any adjustments as necessary to
implement any Capitalization Adjustments, the aggregate number of shares of Common Stock that may be issued pursuant to Awards will not exceed 2,834,232 shares, which number is the sum of: 

(i) 1,766,699 new shares (which includes the Prior Plan’s Available Reserve); and 

(ii) up to 1,067,533 Returning Shares as such shares become available from time to time. 

In addition, subject to any adjustments as necessary to implement any Capitalization Adjustments, such aggregate number of shares of Common
Stock will automatically increase on January 1st of each year for a period of ten years commencing on January 1, 2022 and ending on (and including) January 1, 2031, in an amount equal to
5% of the total number of shares of Common Stock, outstanding on December 31st of the preceding year (determined on an as-converted to Common Stock basis,
without regard to any limitations on the conversion of the Non-Voting Common); provided, however that the Board may act prior to January 1st of a given year
to provide that the increase for such year will be a lesser number of shares of Common Stock. 
 (b) Aggregate Incentive
Stock Option Limit. Notwithstanding anything to the contrary in Section 2(a) and subject to any adjustments as necessary to implement any 

  
 1. 

 
Capitalization Adjustments, the aggregate maximum number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options is 8,833,495 shares. 

(c) Share Reserve Operation. 

(i) Limit Applies to Common Stock Issued Pursuant to Awards. For clarity, the Share Reserve is a limit on the number of
shares of Common Stock that may be issued pursuant to Awards and does not limit the granting of Awards, except that the Company will keep available at all times the number of shares of Common Stock reasonably required to satisfy its obligations to
issue shares pursuant to such Awards. Shares may be issued in connection with a merger or acquisition as permitted by, as applicable, Nasdaq Listing Rule 5635(c), NYSE Listed Company Manual Section 303A.08, NYSE American Company Guide
Section 711 or other applicable rule, and such issuance will not reduce the number of shares available for issuance under the Plan. 

(ii) Actions that Do Not Constitute Issuance of Common Stock and Do Not Reduce Share Reserve. The following actions do
not result in an issuance of shares under the Plan and accordingly do not reduce the number of shares subject to the Share Reserve and available for issuance under the Plan: (1) the expiration or termination of any portion of an Award without
the shares covered by such portion of the Award having been issued, (2) the settlement of any portion of an Award in cash (i.e., the Participant receives cash rather than Common Stock), (3) the withholding of shares that would otherwise
be issued by the Company to satisfy the exercise, strike or purchase price of an Award; or (4) the withholding of shares that would otherwise be issued by the Company to satisfy a tax withholding obligation in connection with an Award. 

(iii) Reversion of Previously Issued Shares of Common Stock to Share Reserve. The following shares of Common Stock
previously issued pursuant to an Award and accordingly initially deducted from the Share Reserve will be added back to the Share Reserve and again become available for issuance under the Plan: (1) any shares that are forfeited back to or
repurchased by the Company because of a failure to meet a contingency or condition required for the vesting of such shares; (2) any shares that are reacquired by the Company to satisfy the exercise, strike or purchase price of an Award; and
(3) any shares that are reacquired by the Company to satisfy a tax withholding obligation in connection with an Award. 
 3.
ELIGIBILITY AND LIMITATIONS. 
 (a) Eligible Award Recipients.
Subject to the terms of the Plan, Employees, Directors and Consultants are eligible to receive Awards. 
 (b) Specific
Award Limitations. 
 (i) Limitations on Incentive Stock Option Recipients. Incentive Stock Options may be granted
only to Employees of the Company or a “parent corporation” or “subsidiary corporation” thereof (as such terms are defined in Sections 424(e) and (f) of the Code). 

  
 2. 

 (ii) Incentive Stock Option $100,000 Limitation. To the extent that
the aggregate Fair Market Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and any
Affiliates) exceeds $100,000 (or such other limit established in the Code) or otherwise does not comply with the rules governing Incentive Stock Options, the Options or portions thereof that exceed such limit (according to the order in which they
were granted) or otherwise do not comply with such rules will be treated as Nonstatutory Stock Options, notwithstanding any contrary provision of the applicable Option Agreement(s). 

(iii) Limitations on Incentive Stock Options Granted to Ten Percent Stockholders. A Ten Percent Stockholder may not be
granted an Incentive Stock Option unless (i) the exercise price of such Option is at least 110% of the Fair Market Value on the date of grant of such Option and (ii) the Option is not exercisable after the expiration of five years from the
date of grant of such Option. 
 (iv) Limitations on Nonstatutory Stock Options and SARs. Nonstatutory Stock Options
and SARs may not be granted to Employees, Directors and Consultants who are providing Continuous Service only to any “parent” of the Company (as such term is defined in Rule 405) unless the stock underlying such Awards is treated as
“service recipient stock” under Section 409A because the Awards are granted pursuant to a corporate transaction (such as a spin off transaction) or unless such Awards otherwise comply with the distribution requirements of
Section 409A. 
 (c) Aggregate Incentive Stock Option Limit. The aggregate maximum number of shares of Common
Stock that may be issued pursuant to the exercise of Incentive Stock Options is the number of shares specified in Section 2(b). 

(d) Non-Employee Director Compensation Limit. The limitations in this
Section 3(d) shall apply commencing with the first applicable period that begins following the IPO. The aggregate value of all compensation granted or paid, as applicable, to any individual for service as a
Non-Employee Director with respect to any calendar year, including Awards granted and cash fees paid by the Company to such Non-Employee Director, will not exceed (i)
$750,000 in total value or (ii) in the event such Non-Employee Director is first appointed or elected to the Board during such calendar year, $1,500,000 in total value, in each case calculating the value
of any equity awards based on the grant date fair value of such equity awards for financial reporting purposes.
 4. OPTIONS
AND STOCK APPRECIATION RIGHTS. 
 Each Option and SAR will
have such terms and conditions as determined by the Board. Each Option will be designated in writing as an Incentive Stock Option or Nonstatutory Stock Option at the time of grant; provided, however, that if an Option is not so designated, then such
Option will be a Nonstatutory Stock Option, and the shares purchased upon exercise of each type of Option will be separately accounted for. Each SAR will be denominated in shares of Common Stock equivalents. The terms and conditions of separate
Options and SARs need not be identical; provided, however, that each Option Agreement and SAR Agreement will conform (through 

  
 3. 

 
incorporation of provisions hereof by reference in the Award Agreement or otherwise) to the substance of each of the following provisions: 

(a) Term. Subject to Section 3(b) regarding Ten Percent Stockholders, no Option or SAR will be exercisable after
the expiration of ten years from the date of grant of such Award or such shorter period specified in the Award Agreement. 

(b) Exercise or Strike Price. Subject to Section 3(b) regarding Ten Percent Stockholders, the exercise or strike
price of each Option or SAR will not be less than 100% of the Fair Market Value on the date of grant of such Award. Notwithstanding the foregoing, an Option or SAR may be granted with an exercise or strike price lower than 100% of the Fair Market
Value on the date of grant of such Award if such Award is granted pursuant to an assumption of or substitution for another option or stock appreciation right pursuant to a Corporate Transaction and in a manner consistent with the provisions of
Sections 409A and, if applicable, 424(a) of the Code. 
 (c) Exercise Procedure and Payment of Exercise Price for
Options. In order to exercise an Option, the Participant must provide notice of exercise to the Plan Administrator in accordance with the procedures specified in the Option Agreement or otherwise provided by the Company. The Board has the
authority to grant Options that do not permit all of the following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to utilize a particular method of payment.
The exercise price of an Option may be paid, to the extent permitted by Applicable Law and as determined by the Board, by one or more of the following methods of payment to the extent set forth in the Option Agreement: 

(i) by cash or check, bank draft or money order payable to the Company; 

(ii) pursuant to a “cashless exercise” program developed under Regulation T as promulgated by the Federal
Reserve Board that, prior to the issuance of the Common Stock subject to the Option, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the exercise price to the Company from the sales
proceeds; 
 (iii) by delivery to the Company (either by actual delivery or attestation) of shares of Common Stock
that are already owned by the Participant free and clear of any liens, claims, encumbrances or security interests, with a Fair Market Value on the date of exercise that does not exceed the exercise price, provided that (1) at the time of
exercise the Common Stock is publicly traded, (2) any remaining balance of the exercise price not satisfied by such delivery is paid by the Participant in cash or other permitted form of payment, (3) such delivery would not violate any
Applicable Law or agreement restricting the redemption of the Common Stock, (4) any certificated shares are endorsed or accompanied by an executed assignment separate from certificate, and (5) such shares have been held by the Participant
for any minimum period necessary to avoid adverse accounting treatment as a result of such delivery; 
 (iv) if the
Option is a Nonstatutory Stock Option, by a “net exercise” arrangement pursuant to which the Company will reduce the number of shares of Common Stock issuable upon exercise by the largest whole number of shares with a Fair Market Value on
the date of exercise that does not exceed the exercise price, provided that (1) such shares used to pay 

  
 4. 

 
the exercise price will not be exercisable thereafter and (2) any remaining balance of the exercise price not satisfied by such net exercise is paid by the Participant in cash or other
permitted form of payment; or 
 (v) in any other form of consideration that may be acceptable to the Board and
permissible under Applicable Law. 
 (d) Exercise Procedure and Payment of Appreciation Distribution for SARs.
In order to exercise any SAR, the Participant must provide notice of exercise to the Plan Administrator in accordance with the SAR Agreement. The appreciation distribution payable to a Participant upon the exercise of a SAR will not be greater than
an amount equal to the excess of (i) the aggregate Fair Market Value on the date of exercise of a number of shares of Common Stock equal to the number of Common Stock equivalents that are vested and being exercised under such SAR, over
(ii) the strike price of such SAR. Such appreciation distribution may be paid to the Participant in the form of Common Stock or cash (or any combination of Common Stock and cash) or in any other form of payment, as determined by the Board and
specified in the SAR Agreement. 
 (e) Transferability. Options and SARs may not be transferred to third party
financial institutions for value. The Board may impose such additional limitations on the transferability of an Option or SAR as it determines. In the absence of any such determination by the Board, the following restrictions on the transferability
of Options and SARs will apply, provided that except as explicitly provided herein, neither an Option nor a SAR may be transferred for consideration and provided, further, that if an Option is an Incentive Stock Option, such Option may be
deemed to be a Nonstatutory Stock Option as a result of such transfer: 
 (i) Restrictions on Transfer. An Option or
SAR will not be transferable, except by will or by the laws of descent and distribution, and will be exercisable during the lifetime of the Participant only by the Participant; provided, however, that the Board may permit transfer of an Option or
SAR in a manner that is not prohibited by applicable tax and securities laws upon the Participant’s request, including to a trust if the Participant is considered to be the sole beneficial owner of such trust (as determined under
Section 671 of the Code and applicable state law) while such Option or SAR is held in such trust, provided that the Participant and the trustee enter into a transfer and other agreements required by the Company. 

(ii) Domestic Relations Orders. Notwithstanding the foregoing, subject to the execution of transfer documentation in a
format acceptable to the Company and subject to the approval of the Board or a duly authorized Officer, an Option or SAR may be transferred pursuant to a domestic relations order. 

(f) Vesting. The Board may impose such restrictions on or conditions to the vesting and/or exercisability of an Option
or SAR as determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Options and SARs will cease upon termination of the
Participant’s Continuous Service. 

  
 5. 

 (g) Termination of Continuous Service for Cause. Except as explicitly
otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service is terminated for Cause, the Participant’s Options and SARs will terminate
and be forfeited immediately upon such termination of Continuous Service, and the Participant will be prohibited from exercising any portion (including any vested portion) of such Awards on and after the date of such termination of Continuous
Service and the Participant will have no further right, title or interest in such forfeited Award, the shares of Common Stock subject to the forfeited Award, or any consideration in respect of the forfeited Award. 

(h) Post-Termination Exercise Period Following Termination of Continuous Service for Reasons Other than Cause. Subject
to Section 4(i), if a Participant’s Continuous Service terminates for any reason other than for Cause, the Participant may exercise his or her Option or SAR to the extent vested, but only within the following period of time or, if
applicable, such other period of time provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate; provided, however, that in no event may such Award be exercised after the expiration of its
maximum term (as set forth in Section 4(a)): 
 (i) three months following the date of such termination if such
termination is a termination without Cause (other than any termination due to the Participant’s Disability or death); 

(ii) 12 months following the date of such termination if such termination is due to the Participant’s Disability;

 (iii) 18 months following the date of such termination if such termination is due to the Participant’s death;
or 
 (iv) 18 months following the date of the Participant’s death if such death occurs following the date of
such termination but during the period such Award is otherwise exercisable (as provided in (i) or (ii) above). 
 Following the date of
such termination, to the extent the Participant does not exercise such Award within the applicable Post-Termination Exercise Period (or, if earlier, prior to the expiration of the maximum term of such Award), such unexercised portion of the Award
will terminate, and the Participant will have no further right, title or interest in the terminated Award, the shares of Common Stock subject to the terminated Award, or any consideration in respect of the terminated Award. 

(i) Restrictions on Exercise; Extension of Exercisability. A Participant may not exercise an Option or SAR at any time
that the issuance of shares of Common Stock upon such exercise would violate Applicable Law. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a
Participant’s Continuous Service terminates for any reason other than for Cause and, at any time during the last thirty days of the applicable Post-Termination Exercise Period: (i) the exercise of the Participant’s Option or SAR would
be prohibited solely because the issuance of shares of Common Stock upon such exercise would violate Applicable Law, or (ii) the immediate sale of any shares of Common 

  
 6. 

 
Stock issued upon such exercise would violate the Company’s Trading Policy, then the applicable Post-Termination Exercise Period will be extended to the last day of the calendar month that
commences following the date the Award would otherwise expire, with an additional extension of the exercise period to the last day of the next calendar month to apply if any of the foregoing restrictions apply at any time during such extended
exercise period, generally without limitation as to the maximum permitted number of extensions); provided, however, that in no event may such Award be exercised after the expiration of its maximum term (as set forth in Section 4(a)). 

(j) Non-Exempt Employees. No Option or SAR, whether or not vested,
granted to an Employee who is a non-exempt employee for purposes of the Fair Labor Standards Act of 1938, as amended, will be first exercisable for any shares of Common Stock until at least six months
following the date of grant of such Award. Notwithstanding the foregoing, in accordance with the provisions of the Worker Economic Opportunity Act, any vested portion of such Award may be exercised earlier than six months following the date of grant
of such Award in the event of (i) such Participant’s death or Disability, (ii) a Corporate Transaction in which such Award is not assumed, continued or substituted, (iii) a Change in Control, or (iv) such Participant’s
retirement (as such term may be defined in the Award Agreement or another applicable agreement or, in the absence of any such definition, in accordance with the Company’s then current employment policies and guidelines). This Section 4(j)
is intended to operate so that any income derived by a non-exempt employee in connection with the exercise or vesting of an Option or SAR will be exempt from his or her regular rate of pay. 

(k) Whole Shares. Options and SARs may be exercised only with respect to whole shares of Common Stock or their
equivalents. 
 5. AWARDS OTHER THAN OPTIONS AND STOCK
APPRECIATION RIGHTS. 
 (a) Restricted Stock Awards and RSU Awards. Each Restricted
Stock Award and RSU Award will have such terms and conditions as determined by the Board; provided, however, that each Restricted Stock Award Agreement and RSU Award Agreement will conform (through incorporation of the provisions hereof by reference
in the Award Agreement or otherwise) to the substance of each of the following provisions: 
 (i) Form of Award. 

(1) RSAs: To the extent consistent with the Company’s Bylaws, at the Board’s election, shares of Common Stock
subject to a Restricted Stock Award may be (i) held in book entry form subject to the Company’s instructions until such shares become vested or any other restrictions lapse, or (ii) evidenced by a certificate, which certificate will
be held in such form and manner as determined by the Board. Unless otherwise determined by the Board, a Participant will have voting and other rights as a stockholder of the Company with respect to any shares subject to a Restricted Stock Award.

 (2) RSUs: A RSU Award represents a Participant’s right to be issued on a future date the number of shares of
Common Stock that is equal to the number of restricted stock units subject to the RSU Award. As a holder of a RSU Award, a Participant is an unsecured creditor of the Company with respect to the Company’s unfunded obligation, if any, to issue
shares 

  
 7. 

 
of Common Stock in settlement of such Award and nothing contained in the Plan or any RSU Agreement, and no action taken pursuant to its provisions, will create or be construed to create a trust
of any kind or a fiduciary relationship between a Participant and the Company or an Affiliate or any other person. A Participant will not have voting or any other rights as a stockholder of the Company with respect to any RSU Award (unless and until
shares are actually issued in settlement of a vested RSU Award). 
 (ii) Consideration. 

(1) RSA: A Restricted Stock Award may be granted in consideration for (A) cash or check, bank draft or money order
payable to the Company, (B) past services to the Company or an Affiliate, or (C) any other form of consideration (including future services) as the Board may determine and permissible under Applicable Law. 

(2) RSU: Unless otherwise determined by the Board at the time of grant, a RSU Award will be granted in consideration
for the Participant’s services to the Company or an Affiliate, such that the Participant will not be required to make any payment to the Company (other than such services) with respect to the grant or vesting of the RSU Award, or the issuance
of any shares of Common Stock pursuant to the RSU Award. If, at the time of grant, the Board determines that any consideration must be paid by the Participant (in a form other than the Participant’s services to the Company or an Affiliate) upon
the issuance of any shares of Common Stock in settlement of the RSU Award, such consideration may be paid in any form of consideration as the Board may determine and permissible under Applicable Law. 

(iii) Vesting. The Board may impose such restrictions on or conditions to the vesting of a Restricted Stock Award or RSU
Award as determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Restricted Stock Awards and RSU Awards will cease upon termination of
the Participant’s Continuous Service. 
 (iv) Termination of Continuous Service. Except as otherwise provided in
the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service terminates for any reason, (i) the Company may receive through a forfeiture condition or a
repurchase right any or all of the shares of Common Stock held by the Participant under his or her Restricted Stock Award that have not vested as of the date of such termination as set forth in the Restricted Stock Award Agreement and (ii) any
portion of his or her RSU Award that has not vested will be forfeited upon such termination and the Participant will have no further right, title or interest in the RSU Award, the shares of Common Stock issuable pursuant to the RSU Award, or any
consideration in respect of the RSU Award. 
 (v) Dividends and Dividend Equivalents. Dividends or dividend
equivalents may be paid or credited, as applicable, with respect to any shares of Common Stock subject to a Restricted Stock Award or RSU Award, as determined by the Board and specified in the Award Agreement). 

(vi) Settlement of RSU Awards. A RSU Award may be settled by the issuance of shares of Common Stock or cash (or
any combination thereof) or in any other form 

  
 8. 

 
of payment, as determined by the Board and specified in the RSU Award Agreement. At the time of grant, the Board may determine to impose such restrictions or conditions that delay such delivery
to a date following the vesting of the RSU Award. 
 (b) Performance Awards. With respect to any Performance
Award, the length of any Performance Period, the Performance Goals to be achieved during the Performance Period, the other terms and conditions of such Award, and the measure of whether and to what degree such Performance Goals have been attained
will be determined by the Board. 
 (c) Other Awards. Other forms of Awards valued in whole or in part by
reference to, or otherwise based on, Common Stock, including the appreciation in value thereof (e.g., options or stock rights with an exercise price or strike price less than 100% of the Fair Market Value at the time of grant) may be granted either
alone or in addition to Awards provided for under Section 4 and the preceding provisions of this Section 5. Subject to the provisions of the Plan, the Board will have sole and complete discretion to determine the persons to whom and the
time or times at which such Other Awards will be granted, the number of shares of Common Stock (or the cash equivalent thereof) to be granted pursuant to such Other Awards and all other terms and conditions of such Other Awards. 

6. ADJUSTMENTS UPON CHANGES IN COMMON STOCK; OTHER
CORPORATE EVENTS. 
 (a) Capitalization Adjustments. In the event of a
Capitalization Adjustment, the Board shall appropriately and proportionately adjust: (i) the class(es) and maximum number of shares of Common Stock subject to the Plan and the maximum number of shares by which the Share Reserve may annually
increase pursuant to Section 2(a), (ii) the class(es) and maximum number of shares that may be issued pursuant to the exercise of Incentive Stock Options pursuant to Section 2(a), and (iii) the class(es) and number of securities and
exercise price, strike price or purchase price of Common Stock subject to outstanding Awards. The Board shall make such adjustments, and its determination shall be final, binding and conclusive. Notwithstanding the foregoing, no fractional shares or
rights for fractional shares of Common Stock shall be created in order to implement any Capitalization Adjustment. The Board shall determine an appropriate equivalent benefit, if any, for any fractional shares or rights to fractional shares that
might be created by the adjustments referred to in the preceding provisions of this Section. 
 (b) Dissolution or
Liquidation. Except as otherwise provided in the Award Agreement, in the event of a dissolution or liquidation of the Company, all outstanding Awards (other than Awards consisting of vested and outstanding shares of Common Stock not subject to a
forfeiture condition or the Company’s right of repurchase) will terminate immediately prior to the completion of such dissolution or liquidation, and the shares of Common Stock subject to the Company’s repurchase rights or subject to a
forfeiture condition may be repurchased or reacquired by the Company notwithstanding the fact that the holder of such Award is providing Continuous Service, provided, however, that the Board may determine to cause some or all Awards to become fully
vested, exercisable and/or no longer subject to repurchase or forfeiture (to the extent such Awards have not previously expired or terminated) before the dissolution or liquidation is completed but contingent on its completion. 

  
 9. 

 (c) Corporate Transaction. The following provisions will apply to
Awards in the event of a Corporate Transaction unless otherwise provided in the instrument evidencing the Award or any other written agreement between the Company or any Affiliate and the Participant or unless otherwise expressly provided by the
Board at the time of grant of an Award. 
 (i) Awards May Be Assumed. In the event of a Corporate Transaction, any
surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue any or all Awards outstanding under the Plan or may substitute similar awards for Awards outstanding under the
Plan (including but not limited to, awards to acquire the same consideration paid to the stockholders of the Company pursuant to the Corporate Transaction), and any reacquisition or repurchase rights held by the Company in respect of Common Stock
issued pursuant to Awards may be assigned by the Company to the successor of the Company (or the successor’s parent company, if any), in connection with such Corporate Transaction. A surviving corporation or acquiring corporation (or its
parent) may choose to assume or continue only a portion of an Award or substitute a similar award for only a portion of an Award, or may choose to assume or continue the Awards held by some, but not all Participants. The terms of any assumption,
continuation or substitution will be set by the Board. 
 (ii) Awards Held by Current Participants. In the event of a
Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that
have not been assumed, continued or substituted and that are held by Participants whose Continuous Service has not terminated prior to the effective time of the Corporate Transaction (referred to as the “Current
Participants”), the vesting of such Awards (and, with respect to Options and Stock Appreciation Rights, the time when such Awards may be exercised) will be accelerated in full to a date prior to the effective time of such Corporate
Transaction (contingent upon the effectiveness of the Corporate Transaction) as the Board determines (or, if the Board does not determine such a date, to the date that is five (5) days prior to the effective time of the Corporate Transaction),
and such Awards will terminate if not exercised (if applicable) at or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase rights held by the Company with respect to such Awards will lapse (contingent upon
the effectiveness of the Corporate Transaction). With respect to the vesting of Performance Awards that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and that have multiple vesting levels
depending on the level of performance, unless otherwise provided in the Award Agreement, the vesting of such Performance Awards will accelerate at 100% of the target level upon the occurrence of the Corporate Transaction. With respect to the vesting
of Awards that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and are settled in the form of a cash payment, such cash payment will be made no later than 30 days following the occurrence of the
Corporate Transaction. 
 (iii) Awards Held by Persons other than Current Participants. In the event of a Corporate
Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that have not
been assumed, continued or substituted and that are held by persons other than Current Participants, such Awards will terminate if not exercised (if applicable) prior to the occurrence of the Corporate Transaction;

  
 10. 

 
provided, however, that any reacquisition or repurchase rights held by the Company with respect to such Awards will not terminate and may continue to be exercised notwithstanding the Corporate
Transaction. 
 (iv) Payment for Awards in Lieu of Exercise. Notwithstanding the foregoing, in the event an Award will
terminate if not exercised prior to the effective time of a Corporate Transaction, the Board may provide, in its sole discretion, that the holder of such Award may not exercise such Award but will receive a payment, in such form as may be determined
by the Board, equal in value, at the effective time, to the excess, if any, of (1) the value of the property the Participant would have received upon the exercise of the Award (including, at the discretion of the Board, any unvested portion of
such Award), over (2) any exercise price payable by such holder in connection with such exercise. 
 (d) Appointment
of Stockholder Representative. As a condition to the receipt of an Award under this Plan, a Participant will be deemed to have agreed that the Award will be subject to the terms of any agreement governing a Corporate Transaction involving the
Company, including, without limitation, a provision for the appointment of a stockholder representative that is authorized to act on the Participant’s behalf with respect to any escrow, indemnities and any contingent consideration. 

(e) No Restriction on Right to Undertake Transactions. The grant of any Award under the Plan and the issuance of shares
pursuant to any Award does not affect or restrict in any way the right or power of the Company or the stockholders of the Company to make or authorize any adjustment, recapitalization, reorganization or other change in the Company’s capital
structure or its business, any merger or consolidation of the Company, any issue of stock or of options, rights or options to purchase stock or of bonds, debentures, preferred or prior preference stocks whose rights are superior to or affect the
Common Stock or the rights thereof or which are convertible into or exchangeable for Common Stock, or the dissolution or liquidation of the Company, or any sale or transfer of all or any part of its assets or business, or any other corporate act or
proceeding, whether of a similar character or otherwise. 
 7. ADMINISTRATION. 

(a) Administration by Board. The Board will administer the Plan unless and until the Board delegates administration of
the Plan to a Committee or Committees, as provided in subsection (c) below. 
 (b) Powers of Board. The Board
will have the power, subject to, and within the limitations of, the express provisions of the Plan: 
 (i) To
determine from time to time (1) which of the persons eligible under the Plan will be granted Awards; (2) when and how each Award will be granted; (3) what type or combination of types of Award will be granted; (4) the provisions
of each Award granted (which need not be identical), including the time or times when a person will be permitted to receive an issuance of Common Stock or other payment pursuant to an Award; (5) the number of shares of Common Stock or cash
equivalent with respect to which an Award will be granted to each such person; (6) the Fair Market Value applicable to an Award; and (7) the terms of any Performance 

  
 11. 

 
Award that is not valued in whole or in part by reference to, or otherwise based on, the Common Stock, including the amount of cash payment or other property that may be earned and the timing of
payment. 
 (ii) To construe and interpret the Plan and Awards granted under it, and to establish, amend and revoke
rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or in any Award Agreement, in a manner and to the extent it deems necessary or expedient to make
the Plan or Award fully effective. 
 (iii) To settle all controversies regarding the Plan and Awards granted under
it. 
 (iv) To accelerate the time at which an Award may first be exercised or the time during which an Award or any
part thereof will vest, notwithstanding the provisions in the Award Agreement stating the time at which it may first be exercised or the time during which it will vest. 

(v) To prohibit the exercise of any Option, SAR or other exercisable Award during a period of up to 30 days prior to the
consummation of any pending stock dividend, stock split, combination or exchange of shares, merger, consolidation or other distribution (other than normal cash dividends) of Company assets to stockholders, or any other change affecting the shares of
Common Stock or the share price of the Common Stock including any Corporate Transaction, for reasons of administrative convenience. 

(vi) To suspend or terminate the Plan at any time. Suspension or termination of the Plan will not Materially Impair
rights and obligations under any Award granted while the Plan is in effect except with the written consent of the affected Participant. 

(vii) To amend the Plan in any respect the Board deems necessary or advisable; provided, however, that
stockholder approval will be required for any amendment to the extent required by Applicable Law. Except as provided above, rights under any Award granted before amendment of the Plan will not be Materially Impaired by any amendment of the Plan
unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing. 

(viii) To submit any amendment to the Plan for stockholder approval. 

(ix) To approve forms of Award Agreements for use under the Plan and to amend the terms of any one or more Awards,
including, but not limited to, amendments to provide terms more favorable to the Participant than previously provided in the Award Agreement, subject to any specified limits in the Plan that are not subject to Board discretion; provided
however, that, a Participant’s rights under any Award will not be Materially Impaired by any such amendment unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing.

 (x) Generally, to exercise such powers and to perform such acts as the Board deems necessary or expedient to
promote the best interests of the Company and that are not in conflict with the provisions of the Plan or Awards. 

  
 12. 

 (xi) To adopt such procedures and
sub-plans as are necessary or appropriate to permit and facilitate participation in the Plan by, or take advantage of specific tax treatment for Awards granted to, Employees, Directors or Consultants who are
foreign nationals or employed outside the United States (provided that Board approval will not be necessary for immaterial modifications to the Plan or any Award Agreement to ensure or facilitate compliance with the laws of the relevant foreign
jurisdiction). 
 (xii) To effect, at any time and from time to time, subject to the consent of any Participant whose
Award is Materially Impaired by such action, (1) the reduction of the exercise price (or strike price) of any outstanding Option or SAR; (2) the cancellation of any outstanding Option or SAR and the grant in substitution therefor of
(A) a new Option, SAR, Restricted Stock Award, RSU Award or Other Award, under the Plan or another equity plan of the Company, covering the same or a different number of shares of Common Stock, (B) cash and/or (C) other valuable
consideration (as determined by the Board); or (3) any other action that is treated as a repricing under generally accepted accounting principles. 

(c) Delegation to Committee. 

(i) General. The Board may delegate some or all of the administration of the Plan to a Committee or Committees.
If administration of the Plan is delegated to a Committee, the Committee will have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to
delegate to another Committee or a subcommittee of the Committee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board will thereafter be to the Committee or subcommittee), subject,
however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. Each Committee may retain the authority to concurrently administer the Plan with Committee or subcommittee to which it
has delegated its authority hereunder and may, at any time, revest in such Committee some or all of the powers previously delegated. The Board may retain the authority to concurrently administer the Plan with any Committee and may, at any time,
revest in the Board some or all of the powers previously delegated. 
 (ii) Rule
16b-3 Compliance. To the extent an Award is intended to qualify for the exemption from Section 16(b) of the Exchange Act that is available under Rule 16b-3 of
the Exchange Act, the Award will be granted by the Board or a Committee that consists solely of two or more Non-Employee Directors, as determined under Rule 16b-3(b)(3)
of the Exchange Act and thereafter any action establishing or modifying the terms of the Award will be approved by the Board or a Committee meeting such requirements to the extent necessary for such exemption to remain available. 

(d) Effect of Board’s Decision. All determinations, interpretations and constructions made by
the Board or any Committee in good faith will not be subject to review by any person and will be final, binding and conclusive on all persons. 

(e) Delegation to an Officer. The Board or any Committee may delegate to one or more Officers the authority to do
one or both of the following (i) designate Employees who are not Officers to be recipients of Options and SARs (and, to the extent permitted by Applicable Law, 

  
 13. 

 
other types of Awards) and, to the extent permitted by Applicable Law, the terms thereof, and (ii) determine the number of shares of Common Stock to be subject to such Awards granted to such
Employees; provided, however, that the resolutions or charter adopted by the Board or any Committee evidencing such delegation will specify the total number of shares of Common Stock that may be subject to the Awards granted by such Officer and that
such Officer may not grant an Award to himself or herself. Any such Awards will be granted on the applicable form of Award Agreement most recently approved for use by the Board or the Committee, unless otherwise provided in the resolutions approving
the delegation authority. Notwithstanding anything to the contrary herein, neither the Board nor any Committee may delegate to an Officer who is acting solely in the capacity of an Officer (and not also as a Director) the authority to determine the
Fair Market Value. 
 8. TAX WITHHOLDING 

(a) Withholding Authorization. As a condition to acceptance of any Award under the Plan, a Participant authorizes
withholding from payroll and any other amounts payable to such Participant, and otherwise agrees to make adequate provision for (including), any sums required to satisfy any U.S. federal, state, local and/or foreign tax or social insurance
contribution withholding obligations of the Company or an Affiliate, if any, which may arise in connection with the grant, exercise, vesting or settlement of such Award, as applicable. Accordingly, a Participant may not be able to exercise an Award
even though the Award is vested, and the Company shall have no obligation to issue shares of Common Stock subject to an Award, unless and until such obligations are satisfied. 

(b) Satisfaction of Withholding Obligation. To the extent permitted by the terms of an Award Agreement, the Company may,
in its sole discretion, satisfy any U.S. federal, state, local and/or foreign tax or social insurance withholding obligation relating to an Award by any of the following means or by a combination of such means: (i) causing the Participant to
tender a cash payment; (ii) withholding shares of Common Stock from the shares of Common Stock issued or otherwise issuable to the Participant in connection with the Award; (iii) withholding cash from an Award settled in cash;
(iv) withholding payment from any amounts otherwise payable to the Participant; (v) by allowing a Participant to effectuate a “cashless exercise” pursuant to a program developed under Regulation T as promulgated by the Federal
Reserve Board, or (vi) by such other method as may be set forth in the Award Agreement. 
 (c) No Obligation to
Notify or Minimize Taxes; No Liability to Claims. Except as required by Applicable Law the Company has no duty or obligation to any Participant to advise such holder as to the time or manner of exercising such Award. Furthermore, the Company has
no duty or obligation to warn or otherwise advise such holder of a pending termination or expiration of an Award or a possible period in which the Award may not be exercised. The Company has no duty or obligation to minimize the tax consequences of
an Award to the holder of such Award and will not be liable to any holder of an Award for any adverse tax consequences to such holder in connection with an Award. As a condition to accepting an Award under the Plan, each Participant (i) agrees
to not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates related to tax liabilities arising from such Award or other Company compensation and (ii) acknowledges that such Participant was advised to
consult with his or her own personal tax, financial and other legal advisors regarding the tax consequences of 

  
 14. 

 
the Award and has either done so or knowingly and voluntarily declined to do so. Additionally, each Participant acknowledges any Option or SAR granted under the Plan is exempt from
Section 409A only if the exercise or strike price is at least equal to the “fair market value” of the Common Stock on the date of grant as determined by the Internal Revenue Service and there is no other impermissible deferral of
compensation associated with the Award. Additionally, as a condition to accepting an Option or SAR granted under the Plan, each Participant agrees not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates in
the event that the Internal Revenue Service asserts that such exercise price or strike price is less than the “fair market value” of the Common Stock on the date of grant as subsequently determined by the Internal Revenue Service. 

(d) Withholding Indemnification. As a condition to accepting an Award under the Plan, in the event that the amount of
the Company’s and/or its Affiliate’s withholding obligation in connection with such Award was greater than the amount actually withheld by the Company and/or its Affiliates, each Participant agrees to indemnify and hold the Company and/or
its Affiliates harmless from any failure by the Company and/or its Affiliates to withhold the proper amount. 
 9. MISCELLANEOUS. 

(a) Source of Shares. The stock issuable under the Plan will be shares of authorized but unissued or reacquired Common
Stock, including shares repurchased by the Company on the open market or otherwise. 
 (b) Use of Proceeds from Sales of
Common Stock. Proceeds from the sale of shares of Common Stock pursuant to Awards will constitute general funds of the Company. 

(c) Corporate Action Constituting Grant of Awards. Corporate action constituting a grant by the Company of an Award to
any Participant will be deemed completed as of the date of such corporate action, unless otherwise determined by the Board, regardless of when the instrument, certificate, or letter evidencing the Award is communicated to, or actually received or
accepted by, the Participant. In the event that the corporate records (e.g., Board consents, resolutions or minutes) documenting the corporate action approving the grant contain terms (e.g., exercise price, vesting schedule or number of shares) that
are inconsistent with those in the Award Agreement or related grant documents as a result of a clerical error in the Award Agreement or related grant documents, the corporate records will control and the Participant will have no legally binding
right to the incorrect term in the Award Agreement or related grant documents. 
 (d) Stockholder Rights. No
Participant will be deemed to be the holder of, or to have any of the rights of a holder with respect to, any shares of Common Stock subject to such Award unless and until (i) such Participant has satisfied all requirements for exercise of the
Award pursuant to its terms, if applicable, and (ii) the issuance of the Common Stock subject to such Award is reflected in the records of the Company. 

(e) No Employment or Other Service Rights. Nothing in the Plan, any Award Agreement or any other instrument executed
thereunder or in connection with any Award granted pursuant thereto will confer upon any Participant any right to continue to serve the Company or 

  
 15. 

 
an Affiliate in the capacity in effect at the time the Award was granted or affect the right of the Company or an Affiliate to terminate at will and without regard to any future vesting
opportunity that a Participant may have with respect to any Award (i) the employment of an Employee with or without notice and with or without cause, (ii) the service of a Consultant pursuant to the terms of such Consultant’s
agreement with the Company or an Affiliate, or (iii) the service of a Director pursuant to the Bylaws of the Company or an Affiliate, and any applicable provisions of the corporate law of the state or foreign jurisdiction in which the Company
or the Affiliate is incorporated, as the case may be. Further, nothing in the Plan, any Award Agreement or any other instrument executed thereunder or in connection with any Award will constitute any promise or commitment by the Company or an
Affiliate regarding the fact or nature of future positions, future work assignments, future compensation or any other term or condition of employment or service or confer any right or benefit under the Award or the Plan unless such right or benefit
has specifically accrued under the terms of the Award Agreement and/or Plan. 
 (f) Change in Time Commitment. In the
event a Participant’s regular level of time commitment in the performance of his or her services for the Company and any Affiliates is reduced (for example, and without limitation, if the Participant is an Employee of the Company and the
Employee has a change in status from a full-time Employee to a part-time Employee or takes an extended leave of absence) after the date of grant of any Award to the Participant, the Board may determine, to the extent permitted by Applicable Law, to
(i) make a corresponding reduction in the number of shares or cash amount subject to any portion of such Award that is scheduled to vest or become payable after the date of such change in time commitment, and (ii) in lieu of or in
combination with such a reduction, extend the vesting or payment schedule applicable to such Award. In the event of any such reduction, the Participant will have no right with respect to any portion of the Award that is so reduced or extended. 

(g) Execution of Additional Documents. As a condition to accepting an Award under the Plan, the Participant agrees to
execute any additional documents or instruments necessary or desirable, as determined in the Plan Administrator’s sole discretion, to carry out the purposes or intent of the Award, or facilitate compliance with securities and/or other
regulatory requirements, in each case at the Plan Administrator’s request. 
 (h) Electronic Delivery and
Participation. Any reference herein or in an Award Agreement to a “written” agreement or document will include any agreement or document delivered electronically, filed publicly at www.sec.gov (or any successor website thereto) or
posted on the Company’s intranet (or other shared electronic medium controlled by the Company to which the Participant has access). By accepting any Award the Participant consents to receive documents by electronic delivery and to participate
in the Plan through any on-line electronic system established and maintained by the Plan Administrator or another third party selected by the Plan Administrator. The form of delivery of any Common Stock (e.g.,
a stock certificate or electronic entry evidencing such shares) shall be determined by the Company. 
 (i)
Clawback/Recovery. All Awards granted under the Plan will be subject to recoupment in accordance with any clawback policy that the Company is required to adopt pursuant to the listing standards of any national securities exchange or association
on which the Company’s securities are listed or as is otherwise required by the Dodd-Frank Wall Street Reform and Consumer Protection Act or other Applicable Law and any clawback policy that the Company

  
 16. 

 
otherwise adopts, to the extent applicable and permissible under Applicable Law. In addition, the Board may impose such other clawback, recovery or recoupment provisions in an Award Agreement as
the Board determines necessary or appropriate, including but not limited to a reacquisition right in respect of previously acquired shares of Common Stock or other cash or property upon the occurrence of Cause. No recovery of compensation under such
a clawback policy will be an event giving rise to a Participant’s right to voluntary terminate employment upon a “resignation for good reason,” or for a “constructive termination” or any similar term under any plan of or
agreement with the Company. 
 (j) Securities Law Compliance. A Participant will not be issued any shares in respect
of an Award unless either (i) the shares are registered under the Securities Act; or (ii) the Company has determined that such issuance would be exempt from the registration requirements of the Securities Act. Each Award also must comply
with other Applicable Law governing the Award, and a Participant will not receive such shares if the Company determines that such receipt would not be in material compliance with Applicable Law. 

(k) Transfer or Assignment of Awards; Issued Shares. Except as expressly provided in the Plan or the form of Award
Agreement, Awards granted under the Plan may not be transferred or assigned by the Participant. After the vested shares subject to an Award have been issued, or in the case of Restricted Stock and similar awards, after the issued shares have vested,
the holder of such shares is free to assign, hypothecate, donate, encumber or otherwise dispose of any interest in such shares provided that any such actions are in compliance with the provisions herein, the terms of the Trading Policy and
Applicable Law. 
 (l) Effect on Other Employee Benefit Plans. The value of any Award granted under the Plan, as
determined upon grant, vesting or settlement, shall not be included as compensation, earnings, salaries, or other similar terms used when calculating any Participant’s benefits under any employee benefit plan sponsored by the Company or any
Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s employee benefit plans. 

(m) Deferrals. To the extent permitted by Applicable Law, the Board, in its sole discretion, may determine that the
delivery of Common Stock or the payment of cash, upon the exercise, vesting or settlement of all or a portion of any Award may be deferred and may also establish programs and procedures for deferral elections to be made by Participants. Deferrals by
will be made in accordance with the requirements of Section 409A. 
 (n) Section 409A. Unless
otherwise expressly provided for in an Award Agreement, the Plan and Award Agreements will be interpreted to the greatest extent possible in a manner that makes the Plan and the Awards granted hereunder exempt from Section 409A, and, to the
extent not so exempt, in compliance with the requirements of Section 409A. If the Board determines that any Award granted hereunder is not exempt from and is therefore subject to Section 409A, the Award Agreement evidencing such Award will
incorporate the terms and conditions necessary to avoid the consequences specified in Section 409A(a)(1) of the Code, and to the extent an Award Agreement is silent on terms necessary for compliance, such terms are hereby incorporated by
reference into the Award Agreement. Notwithstanding anything to the contrary in this Plan (and unless the Award Agreement specifically provides otherwise), if the shares of Common Stock are 

  
 17. 

 
publicly traded, and if a Participant holding an Award that constitutes “deferred compensation” under Section 409A is a “specified employee” for purposes of
Section 409A, no distribution or payment of any amount that is due because of a “separation from service” (as defined in Section 409A without regard to alternative definitions thereunder) will be issued or paid before the date
that is six months and one day following the date of such Participant’s “separation from service” or, if earlier, the date of the Participant’s death, unless such distribution or payment can be made in a manner that complies with
Section 409A, and any amounts so deferred will be paid in a lump sum on the day after such six month period elapses, with the balance paid thereafter on the original schedule. 

(o) CHOICE OF LAW. This Plan and any controversy arising out of or
relating to this Plan shall be governed by, and construed in accordance with, the internal laws of the State of Delaware, without regard to conflict of law principles that would result in any application of any law other than the law of the State of
Delaware. 
 10. COVENANTS OF THE COMPANY. 

(a) Compliance with Law. The Company will seek to obtain from each regulatory commission or agency, as may be deemed to
be necessary, having jurisdiction over the Plan such authority as may be required to grant Awards and to issue and sell shares of Common Stock upon exercise or vesting of the Awards; provided, however, that this undertaking will not require the
Company to register under the Securities Act the Plan, any Award or any Common Stock issued or issuable pursuant to any such Award. If, after reasonable efforts and at a reasonable cost, the Company is unable to obtain from any such regulatory
commission or agency the authority that counsel for the Company deems necessary or advisable for the lawful issuance and sale of Common Stock under the Plan, the Company will be relieved from any liability for failure to issue and sell Common Stock
upon exercise or vesting of such Awards unless and until such authority is obtained. A Participant is not eligible for the grant of an Award or the subsequent issuance of Common Stock pursuant to the Award if such grant or issuance would be in
violation of any Applicable Law. 
 11. ADDITIONAL RULES FOR AWARDS SUBJECT
TO SECTION 409A. 
 (a) Application. Unless the provisions of this Section of
the Plan are expressly superseded by the provisions in the form of Award Agreement, the provisions of this Section shall apply and shall supersede anything to the contrary set forth in the Award Agreement for a
Non-Exempt Award. 
 (b) Non-Exempt Awards
Subject to Non-Exempt Severance Arrangements. To the extent a Non-Exempt Award is subject to Section 409A due to application of a
Non-Exempt Severance Arrangement, the following provisions of this subsection (b) apply. 

(i) If the Non-Exempt Award vests in the ordinary course during the
Participant’s Continuous Service in accordance with the vesting schedule set forth in the Award Agreement, and does not accelerate vesting under the terms of a Non-Exempt Severance Arrangement, in no
event will the shares be issued in respect of such Non-Exempt Award any 

  
 18. 

 
later than the later of: (i) December 31st of the calendar year that includes the applicable vesting date, or (ii) the 60th day that follows the applicable vesting date. 
 (ii) If vesting of
the Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with the Participant’s Separation from Service, and such
vesting acceleration provisions were in effect as of the date of grant of the Non-Exempt Award and, therefore, are part of the terms of such Non-Exempt Award as of the
date of grant, then the shares will be earlier issued in settlement of such Non-Exempt Award upon the Participant’s Separation from Service in accordance with the terms of the Non-Exempt Severance Arrangement, but in no event later than the 60th day that follows the date of the Participant’s Separation from Service. However, if at
the time the shares would otherwise be issued the Participant is subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such
shares shall not be issued before the date that is six months following the date of such Participant’s Separation from Service, or, if earlier, the date of the Participant’s death that occurs within such six month period. 

(iii) If vesting of a Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with a Participant’s Separation from Service, and such vesting acceleration provisions were not in effect as of the date of grant of the Non-Exempt Award and, therefore, are not a part of the terms of such Non-Exempt Award on the date of grant, then such acceleration of vesting of the Non-Exempt Award shall not accelerate the issuance date of the shares, but the shares shall instead be issued on the same schedule as set forth in the Grant Notice as if they had vested in the ordinary course during
the Participant’s Continuous Service, notwithstanding the vesting acceleration of the Non-Exempt Award. Such issuance schedule is intended to satisfy the requirements of payment on a specified date or
pursuant to a fixed schedule, as provided under Treasury Regulations Section 1.409A-3(a)(4). 

(c) Treatment of Non-Exempt Awards Upon a Corporate Transaction for Employees and
Consultants. The provisions of this subsection (c) shall apply and shall supersede anything to the contrary set forth in the Plan with respect to the permitted treatment of any Non-Exempt Award in
connection with a Corporate Transaction if the Participant was either an Employee or Consultant upon the applicable date of grant of the Non-Exempt Award. 

(i) Vested Non-Exempt Awards. The following provisions shall apply to any Vested
Non-Exempt Award in connection with a Corporate Transaction: 
 (1) If the
Corporate Transaction is also a Section 409A Change in Control then the Acquiring Entity may not assume, continue or substitute the Vested Non-Exempt Award. Upon the Section 409A Change in Control
the settlement of the Vested Non-Exempt Award will automatically be accelerated and the shares will be immediately issued in respect of the Vested Non-Exempt Award.
Alternatively, the Company may instead provide that the Participant will receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to the Participant upon the Section 409A Change in Control. 

(2) If the Corporate Transaction is not also a Section 409A Change in Control, then the Acquiring Entity must
either assume, continue or substitute each Vested Non-

  
 19. 

 
Exempt Award. The shares to be issued in respect of the Vested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same
schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment
on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of the Fair Market Value of the shares made on the date of the Corporate
Transaction. 
 (ii) Unvested Non-Exempt Awards. The following provisions
shall apply to any Unvested Non-Exempt Award unless otherwise determined by the Board pursuant to subsection (e) of this Section. 

(1) In the event of a Corporate Transaction, the Acquiring Entity shall assume, continue or substitute any Unvested Non-Exempt Award. Unless otherwise determined by the Board, any Unvested Non-Exempt Award will remain subject to the same vesting and forfeiture restrictions that were
applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of any Unvested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same schedule
that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each
applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of Fair Market Value of the shares made on the date of the Corporate Transaction.

 (2) If the Acquiring Entity will not assume, substitute or continue any Unvested
Non-Exempt Award in connection with a Corporate Transaction, then such Award shall automatically terminate and be forfeited upon the Corporate Transaction with no consideration payable to any Participant in
respect of such forfeited Unvested Non-Exempt Award. Notwithstanding the foregoing, to the extent permitted and in compliance with the requirements of Section 409A, the Board may in its discretion
determine to elect to accelerate the vesting and settlement of the Unvested Non-Exempt Award upon the Corporate Transaction, or instead substitute a cash payment equal to the Fair Market Value of such shares
that would otherwise be issued to the Participant, as further provided in subsection (e)(ii) below. In the absence of such discretionary election by the Board, any Unvested Non-Exempt Award shall be forfeited
without payment of any consideration to the affected Participants if the Acquiring Entity will not assume, substitute or continue the Unvested Non-Exempt Awards in connection with the Corporate Transaction.

 (3) The foregoing treatment shall apply with respect to all Unvested
Non-Exempt Awards upon any Corporate Transaction, and regardless of whether or not such Corporate Transaction is also a Section 409A Change in Control. 

(d) Treatment of Non-Exempt Awards Upon a Corporate Transaction for Non-Employee Directors. The following provisions of this subsection (d) shall apply and shall supersede anything to the contrary that may be set forth in the Plan with respect to the permitted treatment of
a Non-Exempt Director Award in connection with a Corporate Transaction. 

  
 20. 

 (i) If the Corporate Transaction is also a Section 409A Change
in Control then the Acquiring Entity may not assume, continue or substitute the Non-Exempt Director Award. Upon the Section 409A Change in Control the vesting and settlement of any Non-Exempt Director Award will automatically be accelerated and the shares will be immediately issued to the Participant in respect of the Non-Exempt Director Award.
Alternatively, the Company may provide that the Participant will instead receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to the Participant upon the Section 409A Change in Control pursuant
to the preceding provision. 
 (ii) If the Corporate Transaction is not also a Section 409A Change in Control,
then the Acquiring Entity must either assume, continue or substitute the Non-Exempt Director Award. Unless otherwise determined by the Board, the Non-Exempt Director
Award will remain subject to the same vesting and forfeiture restrictions that were applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of the Non-Exempt Director
Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an
issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the
determination of Fair Market Value made on the date of the Corporate Transaction. 
 (e) If the RSU Award is a Non-Exempt Award, then the provisions in this Section 11(e) shall apply and supersede anything to the contrary that may be set forth in the Plan or the Award Agreement with respect to the permitted treatment of
such Non-Exempt Award: 
 (i) Any exercise by the Board of discretion to
accelerate the vesting of a Non-Exempt Award shall not result in any acceleration of the scheduled issuance dates for the shares in respect of the Non-Exempt Award
unless earlier issuance of the shares upon the applicable vesting dates would be in compliance with the requirements of Section 409A. 

(ii) The Company explicitly reserves the right to earlier settle any Non-Exempt
Award to the extent permitted and in compliance with the requirements of Section 409A, including pursuant to any of the exemptions available in Treasury Regulations Section 1.409A-3(j)(4)(ix). 

(iii) To the extent the terms of any Non-Exempt Award provide that it will be
settled upon a Change in Control or Corporate Transaction, to the extent it is required for compliance with the requirements of Section 409A, the Change in Control or Corporate Transaction event triggering settlement must also constitute a
Section 409A Change in Control. To the extent the terms of a Non-Exempt Award provides that it will be settled upon a termination of employment or termination of Continuous Service, to the extent it is
required for compliance with the requirements of Section 409A, the termination event triggering settlement must also constitute a Separation From Service. However, if at the time the shares would otherwise be issued to a Participant in
connection with a “separation from service” such Participant is subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code,
such shares shall not be issued before the date 

  
 21. 

 
that is six months following the date of the Participant’s Separation From Service, or, if earlier, the date of the Participant’s death that occurs within such six month period. 

(iv) The provisions in this subsection (e) for delivery of the shares in respect of the settlement of a RSU Award
that is a Non-Exempt Award are intended to comply with the requirements of Section 409A so that the delivery of the shares to the Participant in respect of such
Non-Exempt Award will not trigger the additional tax imposed under Section 409A, and any ambiguities herein will be so interpreted. 

12. SEVERABILITY. 

If all or any part of the Plan or any Award Agreement is declared by any court or governmental authority to be unlawful or
invalid, such unlawfulness or invalidity shall not invalidate any portion of the Plan or such Award Agreement not declared to be unlawful or invalid. Any Section of the Plan or any Award Agreement (or part of such a Section) so declared to be
unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid. 

13. TERMINATION OF THE PLAN. 

The Board may suspend or terminate the Plan at any time. 

No Incentive Stock Options may be granted after the tenth anniversary of the earlier of: (i) the Adoption Date, or (ii) the date the
Plan is approved by the Company’s stockholders. 
 No Awards may be granted under the Plan while the Plan is suspended or after it is
terminated. 

  
 22. 

 14. DEFINITIONS. 

As used in the Plan, the following definitions apply to the capitalized terms indicated below: 

(a) “Acquiring Entity” means the surviving or acquiring corporation (or its parent company) in
connection with a Corporate Transaction. 
 (b) “Adoption Date” means the date the Plan is
first approved by the Board or Compensation Committee. 
 (c) “Affiliate” means, at the time
of determination, any “parent” or “subsidiary” of the Company as such terms are defined in Rule 405 promulgated under the Securities Act. The Board may determine the time or times at which “parent” or
“subsidiary” status is determined within the foregoing definition. 
 (d) “Applicable
Law” means any applicable securities, federal, state, foreign, material local or municipal or other law, statute, constitution, principle of common law, resolution, ordinance, code, edict, decree, rule, listing rule, regulation,
judicial decision, ruling or requirement issued, enacted, adopted, promulgated, implemented or otherwise put into effect by or under the authority of any Governmental Body (including under the authority of any applicable self-regulating organization
such as the Nasdaq Stock Market, New York Stock Exchange, or the Financial Industry Regulatory Authority). 
 (e)
“Award” means any right to receive Common Stock, cash or other property granted under the Plan (including an Incentive Stock Option, a Nonstatutory Stock Option, a Restricted Stock Award, a RSU Award, a SAR, a Performance
Award or any Other Award). 
 (f) “Award Agreement” means a written agreement between the
Company and a Participant evidencing the terms and conditions of an Award. The Award Agreement generally consists of the Grant Notice and the agreement containing the written summary of the general terms and conditions applicable to the Award and
which is provided to a Participant along with the Grant Notice. 
 (g) “Board” means the Board
of Directors of the Company (or its designee). Any decision or determination made by the Board shall be a decision or determination that is made in the sole discretion of the Board (or its designee), and such decision or determination shall be final
and binding on all Participants. 
 (h) “Capitalization Adjustment” means any change
that is made in, or other events that occur with respect to, the Common Stock subject to the Plan or subject to any Award after the Effective Time without the receipt of consideration by the Company through merger, consolidation, reorganization,
recapitalization, reincorporation, stock dividend, dividend in property other than cash, large nonrecurring cash dividend, stock split, reverse stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate
structure or any similar equity restructuring transaction, as that term is used in Statement of Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor 

  
 23. 

 
thereto). Notwithstanding the foregoing, the conversion of any convertible securities of the Company will not be treated as a Capitalization Adjustment. 

(i) “Cause” has the meaning ascribed to such term in any written agreement between
the Participant and the Company defining such term and, in the absence of such agreement, such term means, with respect to a Participant, the occurrence of any of the following events: (i) such Participant’s commission of any felony or any
crime involving fraud, dishonesty or moral turpitude under the laws of the United States or any state thereof; (ii) such Participant’s attempted commission of, or participation in, a fraud or act of dishonesty against the Company;
(iii) such Participant’s intentional, material violation of any contract or agreement between the Participant and the Company or of any statutory duty owed to the Company or such Participant’s significant violation of any Company
policy; (iv) such Participant’s unauthorized use or disclosure of the Company’s confidential information or trade secrets; (v) such Participant’s material failure or refusal to perform Participant’s employment duties or
to comply with reasonable directions of the Board (or Participant’s supervisor) for a period of thirty (30) days following receipt of notice from the Board (or Participant’s supervisor) of such failure to perform or comply;
(vi) such Participant’s engaging in conduct that has resulted or could reasonably result in significant economic, reputational or other harm do the Company; or (vii) such Participant’s gross misconduct. The determination that a
termination of the Participant’s Continuous Service is either for Cause or without Cause will be made by the Board with respect to Participants who are executive officers of the Company and by the Company’s Chief Executive Officer with
respect to Participants who are not executive officers of the Company. Any determination by the Company that the Continuous Service of a Participant was terminated with or without Cause for the purposes of outstanding Awards held by such Participant
will have no effect upon any determination of the rights or obligations of the Company or such Participant for any other purpose. 

(j) “Change in Control” or “Change of Control” means the occurrence, in
a single transaction or in a series of related transactions, of any one or more of the following events; provided, however, to the extent necessary to avoid adverse personal income tax consequences to the Participant in connection with an Award,
also constitutes a Section 409A Change in Control: 
 (i) any Exchange Act Person becomes the Owner, directly or
indirectly, of securities of the Company representing more than 50% of the combined voting power of the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction. Notwithstanding the foregoing,
a Change in Control shall not be deemed to occur (A) on account of the acquisition of securities of the Company directly from the Company, (B) on account of the acquisition of securities of the Company by an investor, any affiliate thereof
or any other Exchange Act Person that acquires the Company’s securities in a transaction or series of related transactions the primary purpose of which is to obtain financing for the Company through the issuance of equity securities, or
(C) solely because the level of Ownership held by any Exchange Act Person (the “Subject Person”) exceeds the designated percentage threshold of the outstanding voting securities as a result of a repurchase or other acquisition
of voting securities by the Company reducing the number of shares outstanding, provided that if a Change in Control would occur (but for the operation of this sentence) as a result of the acquisition of voting securities by the Company, and after
such share acquisition, the Subject Person becomes the Owner of any additional voting securities that, assuming the repurchase or other acquisition had not occurred, increases the percentage of the then outstanding voting securities Owned by the

  
 24. 

 
Subject Person over the designated percentage threshold, then a Change in Control shall be deemed to occur; 

(ii) there is consummated a merger, consolidation or similar transaction involving (directly or indirectly) the Company
and, immediately after the consummation of such merger, consolidation or similar transaction, the stockholders of the Company immediately prior thereto do not Own, directly or indirectly, either (A) outstanding voting securities representing
more than 50% of the combined outstanding voting power of the surviving Entity in such merger, consolidation or similar transaction or (B) more than 50% of the combined outstanding voting power of the parent of the surviving Entity in such
merger, consolidation or similar transaction, in each case in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such transaction; 

(iii) the stockholders of the Company approve or the Board approves a plan of complete dissolution or liquidation of the
Company, or a complete dissolution or liquidation of the Company shall otherwise occur, except for a liquidation into a parent corporation; 

(iv) there is consummated a sale, lease, exclusive license or other disposition of all or substantially all of the
consolidated assets of the Company and its Subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries to an Entity, more than 50% of the combined
voting power of the voting securities of which are Owned by stockholders of the Company in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such sale, lease, license or
other disposition; or 
 (v) individuals who, on the date the Plan is adopted by the Board, are members of the Board
(the “Incumbent Board”) cease for any reason to constitute at least a majority of the members of the Board; provided, however, that if the appointment or election (or nomination for election) of any new Board member was
approved or recommended by a majority vote of the members of the Incumbent Board then still in office, such new member shall, for purposes of this Plan, be considered as a member of the Incumbent Board; provided, however, that, for this purpose, no
individual initially elected or nominated as a member of the Board as a result of an actual or threatened election contest with respect to Board membership or as a result of any other actual or threatened solicitation of proxies by or on behalf of
any person other than the Board shall be deemed to be an Incumbent Director. 
 Notwithstanding the foregoing or any other
provision of this Plan, (A) the term Change in Control shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company, and (B) the definition of Change in
Control (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Awards subject to such agreement; provided, however, that if no
definition of Change in Control or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply. 

(k) “Code” means the Internal Revenue Code of 1986, as amended, including any applicable
regulations and guidance thereunder. 

  
 25. 

 (l) “Committee” means the Compensation
Committee and any other committee of Directors to whom authority has been delegated by the Board or Compensation Committee in accordance with the Plan. 

(m) “Common Stock” means the Company’s Voting Common Stock. 

(n) “Company” means Longboard Pharmaceuticals, Inc., a Delaware corporation. 

(o) “Compensation Committee” means the Compensation Committee of the Board. 

(p) “Consultant” means any person, including an advisor, who is (i) engaged by the Company
or an Affiliate to render consulting or advisory services and is compensated for such services, or (ii) serving as a member of the board of directors of an Affiliate and is compensated for such services. However, service solely as a Director,
or payment of a fee for such service, will not cause a Director to be considered a “Consultant” for purposes of the Plan. Notwithstanding the foregoing, a person is treated as a Consultant under this Plan only if a Form S-8 Registration Statement under the Securities Act is available to register either the offer or the sale of the Company’s securities to such person. 

(q) “Continuous Service” means that the Participant’s service with the Company or an
Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an Employee, Director or Consultant or a change in the
Entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, will not terminate a Participant’s Continuous Service; provided,
however, that if the Entity for which a Participant is rendering services ceases to qualify as an Affiliate, as determined by the Board, such Participant’s Continuous Service will be considered to have terminated on the date such
Entity ceases to qualify as an Affiliate. For example, a change in status from an Employee of the Company to a Consultant of an Affiliate or to a Director will not constitute an interruption of Continuous Service. To the extent permitted by law, the
Board or the chief executive officer of the Company, in that party’s sole discretion, may determine whether Continuous Service will be considered interrupted in the case of (i) any leave of absence approved by the Board or chief executive
officer, including sick leave, military leave or any other personal leave, or (ii) transfers between the Company, an Affiliate, or their successors. Notwithstanding the foregoing, a leave of absence will be treated as Continuous Service for
purposes of vesting in an Award only to such extent as may be provided in the Company’s leave of absence policy, in the written terms of any leave of absence agreement or policy applicable to the Participant, or as otherwise required by law. In
addition, to the extent required for exemption from or compliance with Section 409A, the determination of whether there has been a termination of Continuous Service will be made, and such term will be construed, in a manner that is consistent
with the definition of “separation from service” as defined under Treasury Regulation Section 1.409A-1(h) (without regard to any alternative definition thereunder). 

(r) “Corporate Transaction” means the consummation, in a single transaction or in a series of
related transactions, of any one or more of the following events: 

  
 26. 

 (i) a sale or other disposition of all or substantially all,
as determined by the Board, of the consolidated assets of the Company and its Subsidiaries; 
 (ii) a sale or other
disposition of at least 50% of the outstanding securities of the Company; 
 (iii) a merger, consolidation or similar
transaction following which the Company is not the surviving corporation; or 
 (iv) a merger, consolidation or
similar transaction following which the Company is the surviving corporation but the shares of Common Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger,
consolidation or similar transaction into other property, whether in the form of securities, cash or otherwise. 
 (s)
“Director” means a member of the Board. 
 (t) “determine”
or “determined” means as determined by the Board or the Committee (or its designee) in its sole discretion. 

(u) “Disability” means, with respect to a Participant, such Participant is unable to engage in
any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months, as
provided in Section 22(e)(3) of the Code, and will be determined by the Board on the basis of such medical evidence as the Board deems warranted under the circumstances. 

(v) “Effective Time” means the IPO, provided this Plan is approved by the Company’s
stockholders prior to the IPO. 
 (w) “Employee” means any person employed by the Company or
an Affiliate. However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for purposes of the Plan. 

(x) “Employer” means the Company or the Affiliate of the Company that employs the Participant.

 (y) “Entity” means a corporation, partnership, limited liability company or other entity.

 (z) “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder. 
 (aa) “Exchange Act Person” means any
natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” will not include (i) the Company or any Subsidiary of the Company, (ii) any
employee benefit plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding
securities pursuant to a registered public offering of such 

  
 27. 

 
securities, (iv) an Entity Owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their Ownership of stock of the Company; or (v) any
natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the Effective Time, is the Owner, directly or indirectly, of securities of the Company representing more than 50% of the
combined voting power of the Company’s then outstanding securities. 
 (bb) “Fair Market
Value” means, as of any date, unless otherwise determined by the Board, the value of the Common Stock (as determined on a per share or aggregate basis, as applicable) determined as follows: 

(i) If the Common Stock is listed on any established stock exchange or traded on any established market, the Fair Market
Value will be the closing sales price for such stock as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the date of determination, as reported in a source the Board deems
reliable. 
 (ii) If there is no closing sales price for the Common Stock on the date of determination, then the Fair
Market Value will be the closing selling price on the last preceding date for which such quotation exists. 
 (iii) In
the absence of such markets for the Common Stock, or if otherwise determined by the Board, the Fair Market Value will be determined by the Board in good faith and in a manner that complies with Sections 409A and 422 of the Code. 

(cc) “Governmental Body” means any: (a) nation, state, commonwealth,
province, territory, county, municipality, district or other jurisdiction of any nature; (b) federal, state, local, municipal, foreign or other government; (c) governmental or regulatory body, or quasi-governmental body of any nature
(including any governmental division, department, administrative agency or bureau, commission, authority, instrumentality, official, ministry, fund, foundation, center, organization, unit, body or Entity and any court or other tribunal, and for the
avoidance of doubt, any Tax authority) or other body exercising similar powers or authority; or (d) self-regulatory organization (including the Nasdaq Stock Market, New York Stock Exchange, and the Financial Industry Regulatory Authority). 

(dd) “Grant Notice” means the notice provided to a Participant that he or she has been granted
an Award under the Plan and which includes the name of the Participant, the type of Award, the date of grant of the Award, number of shares of Common Stock subject to the Award or potential cash payment right, (if any), the vesting schedule for the
Award (if any) and other key terms applicable to the Award. 
 (ee) “Incentive Stock Option”
means an option granted pursuant to Section 4 of the Plan that is intended to be, and qualifies as, an “incentive stock option” within the meaning of Section 422 of the Code. 

(ff) “IPO” means the execution of the underwriting agreement between the Company and the
underwriter(s) managing the initial public offering of the Common Stock, pursuant to which the Common Stock is priced for the initial public offering. 

  
 28. 

 (gg) “Materially Impair” means
any amendment to the terms of the Award that materially adversely affects the Participant’s rights under the Award. A Participant’s rights under an Award will not be deemed to have been Materially Impaired by any such amendment if the
Board, in its sole discretion, determines that the amendment, taken as a whole, does not materially impair the Participant’s rights. For example, the following types of amendments to the terms of an Award do not Materially Impair the
Participant’s rights under the Award: (i) imposition of reasonable restrictions on the minimum number of shares subject to an Option that may be exercised, (ii) to maintain the qualified status of the Award as an Incentive Stock
Option under Section 422 of the Code; (iii) to change the terms of an Incentive Stock Option in a manner that disqualifies, impairs or otherwise affects the qualified status of the Award as an Incentive Stock Option under Section 422
of the Code; (iv) to clarify the manner of exemption from, or to bring the Award into compliance with or qualify it for an exemption from, Section 409A; or (v) to comply with other Applicable Laws. 

(hh) “Non-Employee Director” means a Director who
either (i) is not a current employee or officer of the Company or an Affiliate, does not receive compensation, either directly or indirectly, from the Company or an Affiliate for services rendered as a consultant or in any capacity other than
as a Director (except for an amount as to which disclosure would not be required under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act (“Regulation S-K”)), does not possess an interest in any other transaction for which disclosure would be required under Item 404(a) of Regulation S-K, and is not engaged in a
business relationship for which disclosure would be required pursuant to Item 404(b) of Regulation S-K; or (ii) is otherwise considered a “non-employee
director” for purposes of Rule 16b-3. 
 (ii) “Non-Exempt Award” means any Award that is subject to, and not exempt from, Section 409A, including as the result of (i) a deferral of the issuance of the shares subject to the
Award which is elected by the Participant or imposed by the Company, (ii) the terms of any Non-Exempt Severance Agreement. 

(jj) “Non-Exempt Director Award” means a Non-Exempt Award granted to a Participant who was a Director but not an Employee on the applicable grant date. 

(kk) “Non-Exempt Severance Arrangement” means a
severance arrangement or other agreement between the Participant and the Company that provides for acceleration of vesting of an Award and issuance of the shares in respect of such Award upon the Participant’s termination of employment or
separation from service (as such term is defined in Section 409A(a)(2)(A)(i) of the Code (and without regard to any alternative definition thereunder) (“Separation from Service”) and such severance benefit does not
satisfy the requirements for an exemption from application of Section 409A provided under Treasury Regulations Section 1.409A-1(b)(4), 1.409A-1(b)(9) or
otherwise. 
 (ll) “Nonstatutory Stock Option” means any option granted pursuant to
Section 4 of the Plan that does not qualify as an Incentive Stock Option. 
 (mm) “Non-Voting Common” means the Company’s Non-Voting Common Stock. 

  
 29. 

 (nn) “Officer” means a person who is an
officer of the Company within the meaning of Section 16 of the Exchange Act. 
 (oo)
“Option” means an Incentive Stock Option or a Nonstatutory Stock Option to purchase shares of Common Stock granted pursuant to the Plan. 

(pp) “Option Agreement” means a written agreement between the Company and the Optionholder
evidencing the terms and conditions of the Option grant. The Option Agreement includes the Grant Notice for the Option and the agreement containing the written summary of the general terms and conditions applicable to the Option and which is
provided to a Participant along with the Grant Notice. Each Option Agreement will be subject to the terms and conditions of the Plan. 

(qq) “Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if
applicable, such other person who holds an outstanding Option. 
 (rr) “Other Award” means an
award based in whole or in part by reference to the Common Stock which is granted pursuant to the terms and conditions of Section 5(c). 

(ss) “Other Award Agreement” means a written agreement between the Company and a
holder of an Other Award evidencing the terms and conditions of an Other Award grant. Each Other Award Agreement will be subject to the terms and conditions of the Plan. 

(tt) “Own,” “Owned,”
“Owner,” “Ownership” means that a person or Entity will be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired
“Ownership” of securities if such person or Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting,
with respect to such securities. 
 (uu) “Participant” means an Employee, Director or
Consultant to whom an Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Award. 

(vv) “Performance Award” means an Award that may vest or may be exercised or a cash award that
may vest or become earned and paid contingent upon the attainment during a Performance Period of certain Performance Goals and which is granted under the terms and conditions of Section 5(b) pursuant to such terms as are approved by the Board.
In addition, to the extent permitted by Applicable Law and set forth in the applicable Award Agreement, the Board may determine that cash or other property may be used in payment of Performance Awards. Performance Awards that are settled in cash or
other property are not required to be valued in whole or in part by reference to, or otherwise based on, the Common Stock. 

(ww) “Performance Criteria” means the one or more criteria that the Board will select for
purposes of establishing the Performance Goals for a Performance Period. The Performance Criteria that will be used to establish such Performance Goals may be based on any one of, or combination of, the following as determined by the Board or
Committee: earnings (including earnings per share and net earnings); earnings before interest, taxes and depreciation; earnings before interest, taxes, depreciation and amortization; total stockholder return; return on equity or average
stockholder’s equity; return on assets, investment, or capital employed; stock price; 

  
 30. 

 
margin (including gross margin); income (before or after taxes); operating income; operating income after taxes; pre-tax profit; operating cash flow; sales
or revenue targets; increases in revenue or product revenue; expenses and cost reduction goals; improvement in or attainment of working capital levels; economic value added (or an equivalent metric); market share; cash flow; cash flow per share;
share price performance; debt reduction; customer satisfaction; stockholders’ equity; capital expenditures; debt levels; operating profit or net operating profit; workforce diversity; growth of net income or operating income; billings; pre-clinical development related compound goals; financing; regulatory milestones, including approval of a compound; stockholder liquidity; corporate governance and compliance; product commercialization;
intellectual property; personnel matters; progress of internal research or clinical programs; progress of partnered programs; partner satisfaction; budget management; clinical achievements; completing phases of a clinical study (including the
treatment phase); announcing or presenting preliminary or final data from clinical studies; in each case, whether on particular timelines or generally; timely completion of clinical trials; submission of INDs and NDAs and other regulatory
achievements; partner or collaborator achievements; internal controls, including those related to the Sarbanes-Oxley Act of 2002; research progress, including the development of programs; investor relations, analysts and communication; manufacturing
achievements (including obtaining particular yields from manufacturing runs and other measurable objectives related to process development activities); strategic partnerships or transactions (including
in-licensing and out-licensing of intellectual property; establishing relationships with commercial entities with respect to the marketing, distribution and sale of the
Company’s products (including with group purchasing organizations, distributors and other vendors); supply chain achievements (including establishing relationships with manufacturers or suppliers of active pharmaceutical ingredients and other
component materials and manufacturers of the Company’s products); co-development, co-marketing, profit sharing, joint venture or other similar arrangements;
individual performance goals; (lix) corporate development and planning goals; and other measures of performance selected by the Board or Committee. 

(xx) “Performance Goals” means, for a Performance Period, the one or more goals established by
the Board for the Performance Period based upon the Performance Criteria. Performance Goals may be based on a Company-wide basis, with respect to one or more business units, divisions, Affiliates, or business segments, and in either absolute terms
or relative to the performance of one or more comparable companies or the performance of one or more relevant indices. Unless specified otherwise by the Board (i) in the Award Agreement at the time the Award is granted or (ii) in such
other document setting forth the Performance Goals at the time the Performance Goals are established, the Board will appropriately make adjustments in the method of calculating the attainment of Performance Goals for a Performance Period as follows:
(1) to exclude restructuring and/or other nonrecurring charges; (2) to exclude exchange rate effects; (3) to exclude the effects of changes to generally accepted accounting principles; (4) to exclude the effects of any statutory
adjustments to corporate tax rates; (5) to exclude the effects of items that are “unusual” in nature or occur “infrequently” as determined under generally accepted accounting principles; (6) to exclude the dilutive
effects of acquisitions or joint ventures; (7) to assume that any business divested by the Company achieved performance objectives at targeted levels during the balance of a Performance Period following such divestiture; (8) to exclude the
effect of any change in the outstanding shares of common stock of the Company by reason of any stock dividend or split, stock repurchase, reorganization, recapitalization, merger, consolidation, spin-off,
combination or exchange of shares or other similar corporate change, or any distributions to 

  
 31. 

 
common stockholders other than regular cash dividends; (9) to exclude the effects of stock based compensation and the award of bonuses under the Company’s bonus plans; (10) to
exclude costs incurred in connection with potential acquisitions or divestitures that are required to be expensed under generally accepted accounting principles; and (11) to exclude the goodwill and intangible asset impairment charges that are
required to be recorded under generally accepted accounting principles. In addition, the Board retains the discretion to reduce or eliminate the compensation or economic benefit due upon attainment of Performance Goals and to define the manner of
calculating the Performance Criteria it selects to use for such Performance Period. Partial achievement of the specified criteria may result in the payment or vesting corresponding to the degree of achievement as specified in the Award Agreement or
the written terms of a Performance Cash Award. 
 (yy) “Performance Period” means the period
of time selected by the Board over which the attainment of one or more Performance Goals will be measured for the purpose of determining a Participant’s right to vesting or exercise of an Award. Performance Periods may be of varying and
overlapping duration, at the sole discretion of the Board. 
 (zz) “Plan” means this Longboard
Pharmaceuticals, Inc. 2021 Equity Incentive Plan. 
 (aaa) “Plan Administrator” means the
person, persons, and/or third-party administrator designated by the Company to administer the day to day operations of the Plan and the Company’s other equity incentive programs. 

(bbb) “Post-Termination Exercise Period” means the period following termination of a
Participant’s Continuous Service within which an Option or SAR is exercisable, as specified in Section 4(h). 

(ccc) “Prior Plan’s Available Reserve” means the number of shares available for the grant
of new awards under the Prior Plan as of immediately prior to the Effective Time. 
 (ddd) “Prior
Plan” means the Longboard Pharmaceuticals, Inc. 2020 Equity Incentive Plan. 
 (eee)
“Prospectus” means the document containing the Plan information specified in Section 10(a) of the Securities Act. 

(fff) “Restricted Stock Award” or “RSA” means an Award of shares of
Common Stock which is granted pursuant to the terms and conditions of Section 5(a). 
 (ggg)
“Restricted Stock Award Agreement” means a written agreement between the Company and a holder of a Restricted Stock Award evidencing the terms and conditions of a Restricted Stock Award grant. The Restricted Stock Award
Agreement includes the Grant Notice for the Restricted Stock Award and the agreement containing the written summary of the general terms and conditions applicable to the Restricted Stock Award and which is provided to a Participant along with the
Grant Notice. Each Restricted Stock Award Agreement will be subject to the terms and conditions of the Plan. 

  
 32. 

 (hhh) “Returning Shares” means shares subject
to outstanding stock awards granted under the Prior Plan and that following the Effective Time: (A) are not issued because such stock award or any portion thereof expires or otherwise terminates without all of the shares covered by such stock
award having been issued; (B) are not issued because such stock award or any portion thereof is settled in cash; (C) are forfeited back to or repurchased by the Company because of the failure to meet a contingency or condition required for
the vesting of such shares; (D) are withheld or reacquired to satisfy the exercise, strike or purchase price; or (E) are withheld or reacquired to satisfy a tax withholding obligation. 

(iii) “RSU Award” or “RSU” means an Award of restricted
stock units representing the right to receive an issuance of shares of Common Stock which is granted pursuant to the terms and conditions of Section 5(a). 

(jjj) “RSU Award Agreement” means a written agreement between the Company and a
holder of a RSU Award evidencing the terms and conditions of a RSU Award grant. The RSU Award Agreement includes the Grant Notice for the RSU Award and the agreement containing the written summary of the general terms and conditions applicable to
the RSU Award and which is provided to a Participant along with the Grant Notice. Each RSU Award Agreement will be subject to the terms and conditions of the Plan. 

(kkk) “Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act or any successor to Rule 16b-3, as in effect from time to time. 

(lll) “Rule 405” means Rule 405 promulgated under the Securities Act. 

(mmm) “Section 409A” means Section 409A of the Code and
the regulations and other guidance thereunder. 
 (nnn) “Section 409A
Change in Control” means a change in the ownership or effective control of the Company, or in the ownership of a substantial portion of the Company’s assets, as provided in Section 409A(a)(2)(A)(v) of the Code and Treasury
Regulations Section 1.409A-3(i)(5) (without regard to any alternative definition thereunder). 

(ooo) “Securities Act” means the Securities Act of 1933, as amended. 

(ppp) “Share Reserve” means the number of shares available for issuance under the Plan as set
forth in Section 2(a). 
 (qqq) “Stock Appreciation Right” or
“SAR” means a right to receive the appreciation on Common Stock that is granted pursuant to the terms and conditions of Section 4. 

(rrr) “SAR Agreement” means a written agreement between the Company and a holder of a SAR
evidencing the terms and conditions of a SAR grant. The SAR Agreement includes the Grant Notice for the SAR and the agreement containing the written summary of the general terms and conditions applicable to the SAR and which is provided to a
Participant along with the Grant Notice. Each SAR Agreement will be subject to the terms and conditions of the Plan. 

  
 33. 

 (sss) “Subsidiary” means, with respect to the
Company, (i) any corporation of which more than 50% of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other class
or classes of such corporation will have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership, limited liability company or other entity
in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than 50%. 

(ttt) “Ten Percent Stockholder” means a person who Owns (or is deemed to Own pursuant to
Section 424(d) of the Code) stock possessing more than 10% of the total combined voting power of all classes of stock of the Company or any Affiliate. 

(uuu) “Trading Policy” means the Company’s policy permitting certain individuals to sell
Company shares only during certain “window” periods and/or otherwise restricts the ability of certain individuals to transfer or encumber Company shares, as in effect from time to time. 

(vvv) “Unvested Non-Exempt Award” means the portion of
any Non-Exempt Award that had not vested in accordance with its terms upon or prior to the date of any Corporate Transaction. 

(www) “Vested Non-Exempt Award” means the portion of any
Non-Exempt Award that had vested in accordance with its terms upon or prior to the date of a Corporate Transaction. 

  
 34.

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