Document:

EX-10.5

 Exhibit 10.5 
  

 
 CRINETICS PHARMACEUTICALS, INC.

 2018 EMPLOYEE STOCK PURCHASE PLAN 
  

 
 ARTICLE I. 

PURPOSE 
 The purposes of
this Crinetics Pharmaceuticals, Inc. 2018 Employee Stock Purchase Plan (as it may be amended or restated from time to time, the “Plan”) are to assist Eligible Employees of Crinetics Pharmaceuticals, Inc., a Delaware
corporation (the “Company”), and its Designated Subsidiaries in acquiring a stock ownership interest in the Company pursuant to a plan which is intended to qualify as an “employee stock purchase plan” within the
meaning of Section 423(b) of the Code, and to help Eligible Employees provide for their future security and to encourage them to remain in the employment of the Company and its Designated Subsidiaries. 

ARTICLE II. 
 DEFINITIONS
AND CONSTRUCTION 
 Wherever the following terms are used in the Plan they shall have the meanings specified below, unless the context
clearly indicates otherwise. The singular pronoun shall include the plural where the context so indicates. Masculine, feminine and neuter pronouns are used interchangeably and each comprehends the others. 

2.1 “Administrator” means the entity that conducts the general administration of the Plan as provided in
Article XI. The term “Administrator” shall refer to the Committee unless the Board has assumed the authority for administration of the Plan as provided in Article XI. 

2.2 “Applicable Law” means the requirements relating to the administration of equity incentive plans under U.S. federal
and state securities, tax and other applicable laws, rules and regulations, the applicable rules of any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws and rules of any foreign country or
other jurisdiction where rights under this Plan are granted. 
 2.3 “Board” means the Board of Directors of the
Company. 
 2.4 “Change in Control” means and include each of the following: 

(a) A transaction or series of transactions (other than an offering of Common Stock to the general public through a registration statement
filed with the Securities and Exchange Commission or a transaction or series of transactions that meets the requirements of clauses (i) and (ii) of subsection (c) below) whereby any “person” or related “group” of
“persons” (as such terms are used in Sections 13(d) and 14(d)(2) of the Exchange Act) (other than the Company, any of its Subsidiaries, an employee benefit plan maintained by the Company or any of its Subsidiaries or a
“person” that, prior to such transaction, directly or indirectly controls, is controlled by, or is under common control with, the Company) directly or indirectly acquires beneficial ownership (within the meaning of Rule 13d-3 under the Exchange Act) of securities of 

 
the Company possessing more than 50% of the total combined voting power of the Company’s securities outstanding immediately after such acquisition; or 

(b) During any period of two consecutive years, individuals who, at the beginning of such period, constitute the Board together with any new
Director(s) (other than a Director designated by a person who shall have entered into an agreement with the Company to effect a transaction described in subsections (a) or (c)) whose election by the Board or nomination for election by the
Company’s stockholders was approved by a vote of at least two-thirds of the Directors then still in office who either were Directors at the beginning of the
two-year period or whose election or nomination for election was previously so approved, cease for any reason to constitute a majority thereof; or 

(c) The consummation by the Company (whether directly involving the Company or indirectly involving the Company through one or more
intermediaries) of (x) a merger, consolidation, reorganization, or business combination or (y) a sale or other disposition of all or substantially all of the Company’s assets in any single transaction or series of related transactions
or (z) the acquisition of assets or stock of another entity, in each case other than a transaction: 
 (i) which results in the
Company’s voting securities outstanding immediately before the transaction continuing to represent (either by remaining outstanding or by being converted into voting securities of the Company or the person that, as a result of the transaction,
controls, directly or indirectly, the Company or owns, directly or indirectly, all or substantially all of the Company’s assets or otherwise succeeds to the business of the Company (the Company or such person, the “Successor
Entity”)) directly or indirectly, at least a majority of the combined voting power of the Successor Entity’s outstanding voting securities immediately after the transaction, and 

(ii) after which no person or group beneficially owns voting securities representing 50% or more of the combined voting power of the Successor
Entity; provided, however, that no person or group shall be treated for purposes of this clause (ii) as beneficially owning 50% or more of the combined voting power of the Successor Entity solely as a result of the voting power
held in the Company prior to the consummation of the transaction. 
 The Administrator shall have full and final authority, which shall be
exercised in its sole discretion, to determine conclusively whether a Change in Control has occurred pursuant to the above definition, the date of such Change in Control and any incidental matters relating thereto. 

2.5 “Code” means the Internal Revenue Code of 1986, as amended and the regulations issued thereunder. 

2.6 “Common Stock” means the common stock of the Company and such other securities of the Company that may be
substituted therefor pursuant to Article VIII. 
 2.7 “Company” means Crinetics Pharmaceuticals, Inc., a
Delaware corporation. 
 2.8 “Compensation” of an Eligible Employee means the gross base compensation received by
such Eligible Employee as compensation for services to the Company or any Designated Subsidiary, including prior week adjustment and overtime payments but excluding vacation pay, holiday pay, jury duty pay, funeral leave pay, military leave pay,
commissions, incentive compensation, one-time bonuses (e.g., retention or sign on bonuses), education or tuition reimbursements, travel expenses, business and moving reimbursements, income received in
connection with any stock options, stock appreciation rights, restricted stock, restricted stock units or other compensatory equity awards, fringe benefits, other special payments 

  
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and all contributions made by the Company or any Designated Subsidiary for the Employee’s benefit under any employee benefit plan now or hereafter established. 

2.9 “Designated Subsidiary” means any Subsidiary designated by the Administrator in accordance with
Section 11.3(b). 
 2.10 “Director” means a Board member. 

2.11 “Effective Date” means the day prior to the Public Trading Date, provided that the Board has adopted
the Plan prior to or on such date. 
 2.12 “Eligible Employee” means an Employee who does not, immediately after any
rights under this Plan are granted, own (directly or through attribution) stock possessing 5% or more of the total combined voting power or value of all classes of Common Stock and other stock of the Company, a Parent or a Subsidiary (as determined
under Section 423(b)(3) of the Code). For purposes of the foregoing sentence, the rules of Section 424(d) of the Code with regard to the attribution of stock ownership shall apply in determining the stock ownership of an individual, and
stock that an Employee may purchase under outstanding options shall be treated as stock owned by the Employee; provided, however, that the Administrator may provide in an Offering Document that an Employee shall not be eligible to
participate in an Offering Period if: (a) such Employee is a highly compensated employee within the meaning of Section 423(b)(4)(D) of the Code, (b) such Employee has not met a service requirement designated by the Administrator
pursuant to Section 423(b)(4)(A) of the Code (which service requirement may not exceed two years), (c) such Employee’s customary employment is for twenty hours or less per week, (d) such Employee’s customary employment is for
less than five months in any calendar year and/or (e) such Employee is a citizen or resident of a foreign jurisdiction and the grant of a right to purchase Common Stock under the Plan to such Employee would be prohibited under the laws of such
foreign jurisdiction or the grant of a right to purchase Common Stock under the Plan to such Employee in compliance with the laws of such foreign jurisdiction would cause the Plan to violate the requirements of Section 423 of the Code, as
determined by the Administrator in its sole discretion; provided, further, that any exclusion in clauses (a), (b), (c), (d) or (e) shall be applied in an identical manner under each Offering Period to all Employees, in accordance
with Treasury Regulation Section 1.423-2(e). 
 2.13 “Employee” means
any officer or other employee (as defined in accordance with Section 3401(c) of the Code) of the Company or any Designated Subsidiary. “Employee” shall not include any director of the Company or a Designated Subsidiary who does not
render services to the Company or a Designated Subsidiary as an employee within the meaning of Section 3401(c) of the Code. For purposes of the Plan, the employment relationship shall be treated as continuing intact while the individual is on
sick leave or other leave of absence approved by the Company or Designated Subsidiary and meeting the requirements of Treasury Regulation Section 1.421-1(h)(2). Where the period of leave exceeds three
months and the individual’s right to reemployment is not guaranteed either by statute or by contract, the employment relationship shall be deemed to have terminated on the first day immediately following such three-month period. 

2.14 “Enrollment Date” means the first day of each Offering Period (or, with respect to the Initial Offering Period,
such date set forth in the Offering Document approved by the Administrator with respect to the Initial Offering Period). 
 2.15
“Exchange Act” means the Securities Exchange Act of 1934, as amended from time to time. 

  
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 2.16 “Fair Market Value” means, as of any date, the value of a share of
Common Stock determined as follows: (a) if the Common Stock is listed on any established stock exchange, its Fair Market Value will be the closing sales price for such Common Stock as quoted on such exchange for such date, or if no sale
occurred on such date, the last day preceding such date during which a sale occurred, as reported in The Wall Street Journal or another source the Administrator deems reliable; (b) if the Common Stock is not traded on a stock exchange
but is quoted on a national market or other quotation system, the closing sales price on such date, or if no sales occurred on such date, then on the last date preceding such date during which a sale occurred, as reported in The Wall Street
Journal or another source the Administrator deems reliable; or (c) without an established market for the Common Stock, the Administrator will determine the Fair Market Value in its discretion; or (d) with respect to the Initial
Offering Period, the Fair Market Value as specified in the Offering Document approved by the Administrator with respect to the Initial Offering Period. 

2.17 “Grant Date” means the first Trading Day of an Offering Period (or, with respect to the Initial Offering Period,
such date set forth in the Offering Document approved by the Administrator with respect to the Initial Offering Period). 
 2.18
“Initial Offering Period” shall mean the period commencing on the Effective Date and ending the date set forth in the Offering Document approved by the Administrator with respect to the Initial Offering Period. 

2.19 “Offering Document” shall have the meaning given to such term in Section 4.1. 

2.20 “Offering Period” shall have the meaning given to such term in Section 4.1. 

2.21 “Parent” means any corporation, other than the Company, in an unbroken chain of corporations ending with the
Company if, at the time of the determination, each of the corporations other than the Company owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. 

2.22 “Participant” means any Eligible Employee who has executed a subscription agreement and been granted rights to
purchase Common Stock pursuant to the Plan. 
 2.23 “Plan” means this Crinetics Pharmaceuticals, Inc. 2018 Employee
Stock Purchase Plan, as it may be amended from time to time. 
 2.24 “Public Trading Date” means the first
date upon which the Common Stock is listed (or approved for listing) upon notice of issuance on any securities exchange or designated (or approved for designation) upon notice of issuance as a national market security on an interdealer quotation
system, or, if earlier, the date on which the Company becomes a “publicly held corporation” for purposes of Treasury Regulation Section 1.162-27(c)(1). 

2.25 “Purchase Date” means the last Trading Day of each Purchase Period. 

2.26 “Purchase Period” shall refer to one or more periods within an Offering Period, as designated in the applicable
Offering Document; provided, however, that, in the event no Purchase Period is designated by the Administrator in the applicable Offering Document, the Purchase Period for each Offering Period covered by such Offering Document shall be
the same as the applicable Offering Period. 
 2.27 “Purchase Price” means the purchase price designated by the
Administrator in the applicable Offering Document (which purchase price shall not be less than 85% of the Fair Market Value 

  
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of a Share on the Grant Date or on the Purchase Date, whichever is lower); provided, however, that, in the event no purchase price is designated by the Administrator in the
applicable Offering Document, the purchase price for the Offering Periods covered by such Offering Document shall be 85% of the Fair Market Value of a Share on the Grant Date or on the Purchase Date, whichever is lower; provided,
further, that the Purchase Price may be adjusted by the Administrator pursuant to Article VIII and shall not be less than the par value of a Share. 

2.28 “Securities Act” means the Securities Act of 1933, as amended. 

2.29 “Share” means a share of Common Stock. 

2.30 “Subsidiary” means any corporation, other than the Company, in an unbroken chain of corporations beginning with
the Company if, at the time of the determination, each of the corporations other than the last corporation in an unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other
corporations in such chain; provided, however, that a limited liability company or partnership may be treated as a Subsidiary to the extent either (a) such entity is treated as a disregarded entity under Treasury Regulation Section 301.7701-3(a) by reason of the Company or any other Subsidiary that is a corporation being the sole owner of such entity, or (b) such entity elects to be classified as a corporation under Treasury
Regulation Section 301.7701-3(a) and such entity would otherwise qualify as a Subsidiary. 

2.31 “Trading Day” means a day on which national stock exchanges in the United States are open for
trading. 
 ARTICLE III. 

SHARES SUBJECT TO THE PLAN 

3.1 Number of Shares. Subject to Article VIII, the aggregate number of Shares that may be issued pursuant to rights granted under
the Plan shall be 250,000 Shares. In addition to the foregoing, subject to Article VIII, on the first day of each calendar year beginning on January 1, 2019 and ending on and including January 1, 2028, the number of Shares available
for issuance under the Plan shall be increased by that number of Shares equal to the lesser of (a) 1% of the Shares outstanding on the final day of the immediately preceding calendar year, and (b) such smaller number of Shares as determined by
the Board. If any right granted under the Plan shall for any reason terminate without having been exercised, the Common Stock not purchased under such right shall again become available for issuance under the Plan. Notwithstanding anything in this
Section 3.1 to the contrary, the number of Shares that may be issued or transferred pursuant to the rights granted under the Plan shall not exceed an aggregate of 4,000,000 Shares, subject to Article 8. 

3.2 Stock Distributed. Any Common Stock distributed pursuant to the Plan may consist, in whole or in part, of authorized and unissued
Common Stock, treasury stock or Common Stock purchased on the open market. 
 ARTICLE IV. 

OFFERING PERIODS; OFFERING DOCUMENTS; PURCHASE DATES 

4.1 Offering Periods. The Administrator may from time to time grant or provide for the grant of rights to purchase Common Stock under
the Plan to Eligible Employees during one or more periods (each, an “Offering Period”) selected by the Administrator. The terms and conditions applicable to each Offering Period shall be set forth in an “Offering
Document” adopted by the Administrator, which Offering Document shall be in such form and shall contain such terms and conditions as the Administrator shall 

  
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deem appropriate and shall be incorporated by reference into and made part of the Plan and shall be attached hereto as part of the Plan. The Administrator shall establish in each Offering
Document one or more Purchase Periods during such Offering Period during which rights granted under the Plan shall be exercised and purchases of Shares carried out during such Offering Period in accordance with such Offering Document and the Plan.
The provisions of separate Offering Periods under the Plan need not be identical. 
 4.2 Offering Documents. Each Offering Document
with respect to an Offering Period shall specify (through incorporation of the provisions of this Plan by reference or otherwise): 
 (a) the
length of the Offering Period, which period shall not exceed twenty-seven months; 
 (b) the length of the Purchase Period(s) within the
Offering Period; 
 (c) the maximum number of Shares that may be purchased by any Eligible Employee during such Offering Period, which, in
the absence of a contrary designation by the Administrator, shall be 100,000 Shares; 
 (d) in connection with each Offering Period that
contains more than one Purchase Period, the maximum aggregate number of shares which may be purchased by any Eligible Employee during each Purchaser Period, which, in the absence of a contrary designation by the Administrator, shall be 100,000
Shares; and 
 (e) such other provisions as the Administrator determines are appropriate, subject to the Plan. 

ARTICLE V. 
 ELIGIBILITY
AND PARTICIPATION 
 5.1 Eligibility. Any Eligible Employee who shall be employed by the Company or a Designated Subsidiary on a
given Enrollment Date for an Offering Period shall be eligible to participate in the Plan during such Offering Period, subject to the requirements of this Article V and the limitations imposed by Section 423(b) of the Code. 

5.2 Enrollment in Plan. 

(a) Except as otherwise set forth in an Offering Document or determined by the Administrator, an Eligible Employee may become a Participant in
the Plan for an Offering Period by delivering a subscription agreement to the Company by such time prior to the Enrollment Date for such Offering Period (or such other date specified in the Offering Document) designated by the Administrator and in
such form as the Company provides. 
 (b) Each subscription agreement shall designate a whole percentage of such Eligible Employee’s
Compensation to be withheld by the Company or the Designated Subsidiary employing such Eligible Employee on each payday during the Offering Period as payroll deductions under the Plan or, if permitted by the Administrator, contributions to be made
by such Eligible Employee. The designated percentage may not be less than 1% and may not be more than the maximum percentage specified by the Administrator in the applicable Offering Document (which percentage shall be 20% in the absence of any such
designation). The payroll deductions or, if permitted by the Administrator, contributions made for each Participant shall be credited to an account for such Participant under the Plan and shall be deposited with the general funds of the Company.

  
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 (c) A Participant may increase or decrease the percentage of Compensation designated in his or
her subscription agreement, subject to the limits of this Section 5.2, or may suspend his or her payroll deductions, or, if permitted by the Administrator, contributions, at any time during an Offering Period; provided, however,
that the Administrator may limit the number of changes a Participant may make to his or her payroll deduction elections or, if permitted by the Administrator, contributions, during each Offering Period in the applicable Offering Document (and in the
absence of any specific designation by the Administrator, a Participant shall be allowed one change to his or her payroll deduction elections or, if permitted by the Administrator, contributions, during each Offering Period). Any such change or
suspension of payroll deductions, or, if permitted by the Administrator, contributions, shall be effective with the first full payroll period that is at least five business days after the Company’s receipt of the new subscription agreement (or
such shorter or longer period as may be specified by the Administrator in the applicable Offering Document). In the event a Participant suspends his or her payroll deductions or contributions, such Participant’s cumulative payroll deductions or
contributions prior to the suspension shall remain in his or her account and shall be applied to the purchase of Shares on the next occurring Purchase Date and shall not be paid to such Participant unless he or she withdraws from participation in
the Plan pursuant to Article VII. 
 (d) Except as set forth in Section 5.8, as otherwise set forth in an Offering Document or
determined by the Administrator, a Participant may participate in the Plan only by means of payroll deduction and may not make contributions by lump sum payment for any Offering Period. 

5.3 Payroll Deductions. Except as otherwise provided in the applicable Offering Document or Section 5.8, payroll deductions for a
Participant shall commence on the first payroll following the Enrollment Date and shall end on the last payroll in the Offering Period to which the Participant’s authorization is applicable, unless sooner terminated by the Participant as
provided in Article VII or suspended by the Participant or the Administrator as provided in Section 5.2 and Section 5.6, respectively. 

5.4 Effect of Enrollment. A Participant’s completion of a subscription agreement will enroll such Participant in the Plan for each
subsequent Offering Period on the terms contained therein until the Participant either submits a new subscription agreement, withdraws from participation under the Plan as provided in Article VII or otherwise becomes ineligible to participate
in the Plan. 
 5.5 Limitation on Purchase of Common Stock. An Eligible Employee may be granted rights under the Plan only if such
rights, together with any other rights granted to such Eligible Employee under “employee stock purchase plans” of the Company, any Parent or any Subsidiary, as specified by Section 423(b)(8) of the Code, do not permit such
employee’s rights to purchase stock of the Company or any Parent or Subsidiary to accrue at a rate that exceeds $25,000 of the fair market value of such stock (determined as of the time which such rights are granted) for each calendar year in
which such rights are outstanding at any time. This limitation shall be applied in accordance with Section 423(b)(8) of the Code. 
 5.6
Decrease or Suspension of Payroll Deductions or Contributions. Notwithstanding the foregoing, to the extent necessary to comply with Section 423(b)(8) of the Code and Section 5.5 or the other limitations set forth in this Plan, a
Participant’s payroll deductions or contributions may be suspended or discontinued by the Administrator at any time during an Offering Period. The balance of the amount credited to the account of each Participant that has not been applied to
the purchase of Shares by reason of Section 423(b)(8) of the Code, Section 5.5 or the other limitations set forth in this Plan shall be paid to such Participant in one lump sum in cash as soon as reasonably practicable after the Purchase
Date. 
 5.7 Foreign Employees. In order to facilitate participation in the Plan, the Administrator may provide for such special terms
applicable to Participants who are citizens or residents of a foreign jurisdiction, or who are employed by a Designated Subsidiary outside of the United States, as the 

  
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Administrator may consider necessary or appropriate to accommodate differences in local law, tax policy or custom. Such special terms may not be more favorable than the terms of rights granted
under the Plan to Eligible Employees who are residents of the United States. Moreover, the Administrator may approve such supplements to, or amendments, restatements or alternative versions of, this Plan as it may consider necessary or appropriate
for such purposes without thereby affecting the terms of this Plan as in effect for any other purpose. No such special terms, supplements, amendments or restatements shall include any provisions that are inconsistent with the terms of this Plan as
then in effect unless this Plan could have been amended to eliminate such inconsistency without further approval by the stockholders of the Company. 

5.8 Leave of Absence. During leaves of absence approved by the Company meeting the requirements of Treasury Regulation Section 1.421-1(h)(2) under the Code, a Participant may continue participation in the Plan by making cash payments to the Company on his or her normal payday equal to his or her authorized payroll deduction.

 ARTICLE VI. 
 GRANT
AND EXERCISE OF RIGHTS 
 6.1 Grant of Rights. On the Grant Date of each Offering Period, each Eligible Employee participating in
such Offering Period shall be granted a right to purchase the maximum number of Shares specified under Section 4.2, subject to the limits in Section 5.5, and shall have the right to buy, on each Purchase Date during such Offering Period
(at the applicable Purchase Price), such number of whole Shares as is determined by dividing (a) such Participant’s payroll deductions or permitted contributions accumulated prior to such Purchase Date and retained in the
Participant’s account as of the Purchase Date, by (b) the applicable Purchase Price (rounded down to the nearest Share). The right shall expire on the earlier of: (x) the last Purchase Date of the Offering Period, (y) last day of
the Offering Period and (z) the date on which the Participant withdraws in accordance with Section 7.1 or Section 7.3. 
 6.2
Exercise of Rights. On each Purchase Date, each Participant’s accumulated payroll deductions or permitted contributions and any other additional payments specifically provided for in the applicable Offering Document will be applied to
the purchase of whole Shares, up to the maximum number of Shares permitted pursuant to the terms of the Plan and the applicable Offering Document, at the Purchase Price. No fractional Shares shall be issued upon the exercise of rights granted under
the Plan, unless the Offering Document specifically provides otherwise. Any cash in lieu of fractional Shares remaining after the purchase of whole Shares upon exercise of a purchase right will be credited to a Participant’s account and
returned to the Participant in one lump sum payment in a subsequent payroll check as soon as practicable after the Exercise Date. Shares issued pursuant to the Plan may be evidenced in such manner as the Administrator may determine and may be issued
in certificated form or issued pursuant to book-entry procedures. 
 6.3 Pro Rata Allocation of Shares. If the Administrator
determines that, on a given Purchase Date, the number of Shares with respect to which rights are to be exercised may exceed (a) the number of Shares that were available for issuance under the Plan on the Enrollment Date of the applicable
Offering Period, or (b) the number of Shares available for issuance under the Plan on such Purchase Date, the Administrator may in its sole discretion provide that the Company shall make a pro rata allocation of the Shares available for
purchase on such Enrollment Date or Purchase Date, as applicable, in as uniform a manner as shall be practicable and as it shall determine in its sole discretion to be equitable among all Participants for whom rights to purchase Common Stock are to
be exercised pursuant to this Article VI on such Purchase Date, and shall either (i) continue all Offering Periods then in effect, or (ii) terminate any or all Offering Periods then in effect pursuant to Article IX. The Company
may make pro rata allocation of the Shares available on the Enrollment Date of any applicable Offering Period pursuant to the preceding sentence, notwithstanding any authorization of additional Shares for issuance under the Plan by the 

  
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Company’s stockholders subsequent to such Enrollment Date. The balance of the amount credited to the account of each Participant that has not been applied to the purchase of Shares shall be
paid to such Participant in one lump sum in cash as soon as reasonably practicable after the Purchase Date. 
 6.4 Withholding. At the
time a Participant’s rights under the Plan are exercised, in whole or in part, or at the time some or all of the Common Stock issued under the Plan is disposed of, the Participant must make adequate provision for the Company’s federal,
state, or other tax withholding obligations, if any, that arise upon the exercise of the right or the disposition of the Common Stock. At any time, the Company may, but shall not be obligated to, withhold from the Participant’s compensation the
amount necessary for the Company to meet applicable withholding obligations, including any withholding required to make available to the Company any tax deductions or benefits attributable to sale or early disposition of Common Stock by the
Participant. 
 6.5 Conditions to Issuance of Common Stock. The Company shall not be required to issue or deliver any certificate or
certificates for, or make any book entries evidencing, Shares purchased upon the exercise of rights under the Plan prior to fulfillment of all of the following conditions: 

(a) The admission of such Shares to listing on all stock exchanges, if any, on which the Common Stock is then listed; 

(b) The completion of any registration or other qualification of such Shares under any state or federal law or under the rulings or regulations
of the Securities and Exchange Commission or any other governmental regulatory body, that the Administrator shall, in its absolute discretion, deem necessary or advisable; 

(c) The obtaining of any approval or other clearance from any state or federal governmental agency that the Administrator shall, in its
absolute discretion, determine to be necessary or advisable; 
 (d) The payment to the Company of all amounts that it is required to withhold
under federal, state or local law upon exercise of the rights, if any; and 
 (e) The lapse of such reasonable period of time following the
exercise of the rights as the Administrator may from time to time establish for reasons of administrative convenience. 
 ARTICLE VII.

 WITHDRAWAL; CESSATION OF ELIGIBILITY 

7.1 Withdrawal. A Participant may withdraw all but not less than all of the payroll deductions or contributions credited to his or her
account and not yet used to exercise his or her rights under the Plan at any time by giving written notice to the Company in a form acceptable to the Company no later than one week prior to the end of the Offering Period (or such shorter or longer
period specified by the Administrator in the Offering Document). All of the Participant’s payroll deductions credited to his or her account or contributions made by the Participant during an Offering Period shall be paid to such Participant as
soon as reasonably practicable after receipt of notice of withdrawal and such Participant’s rights for the Offering Period shall be automatically terminated, and no further payroll deductions for the purchase of Shares shall be made or
contributions accepted for such Offering Period. If a Participant withdraws from an Offering Period, payroll deductions shall not resume at the beginning of the next Offering Period unless the Participant timely delivers to the Company a new
subscription agreement. 
 7.2 Future Participation. A Participant’s withdrawal from an Offering Period shall not have any effect
upon his or her eligibility to participate in any similar plan that may hereafter be adopted by the 

  
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Company or a Designated Subsidiary or in subsequent Offering Periods that commence after the termination of the Offering Period from which the Participant withdraws. 

7.3 Cessation of Eligibility. Upon a Participant’s ceasing to be an Eligible Employee for any reason, he or she shall be deemed to
have elected to withdraw from the Plan pursuant to this Article VII and the payroll deductions credited to such Participant’s account or contributions made by such Participant during the Offering Period shall be paid to such Participant
or, in the case of his or her death, to the person or persons entitled thereto under Section 12.4, as soon as reasonably practicable, and such Participant’s rights for the Offering Period shall be automatically terminated. 

ARTICLE VIII. 

ADJUSTMENTS UPON CHANGES IN STOCK 

8.1 Changes in Capitalization. Subject to Section 8.3, in the event that the Administrator determines that any dividend or other
distribution (whether in the form of cash, Common Stock, other securities, or other property), Change in Control, reorganization, merger, amalgamation, consolidation, combination, repurchase, recapitalization, liquidation, dissolution, or sale,
transfer, exchange or other disposition of all or substantially all of the assets of the Company, or sale or exchange of Common Stock or other securities of the Company, issuance of warrants or other rights to purchase Common Stock or other
securities of the Company, or other similar corporate transaction or event, as determined by the Administrator, affects the Common Stock such that an adjustment is determined by the Administrator to be appropriate in order to prevent dilution or
enlargement of the benefits or potential benefits intended by the Company to be made available under the Plan or with respect to any outstanding purchase rights under the Plan, the Administrator shall make equitable adjustments, if any, to reflect
such change with respect to (a) the aggregate number and type of Shares (or other securities or property) that may be issued under the Plan (including, but not limited to, adjustments of the limitations in Section 3.1 and the limitations
established in each Offering Document pursuant to Section 4.2 on the maximum number of Shares that may be purchased); (b) the class(es) and number of Shares and price per Share subject to outstanding rights; and (c) the Purchase Price with
respect to any outstanding rights. 
 8.2 Other Adjustments. Subject to Section 8.3, in the event of any transaction or event
described in Section 8.1 or any unusual or nonrecurring transactions or events affecting the Company, any affiliate of the Company, or the financial statements of the Company or any affiliate (including without limitation any Change in
Control), or of changes in Applicable Law or accounting principles, the Administrator, in its discretion, and on such terms and conditions as it deems appropriate, is hereby authorized to take any one or more of the following actions whenever the
Administrator determines that such action is appropriate in order to prevent the dilution or enlargement of the benefits or potential benefits intended to be made available under the Plan or with respect to any right under the Plan, to facilitate
such transactions or events or to give effect to such changes in laws, regulations or principles: 
 (a) To provide for either
(i) termination of any outstanding right in exchange for an amount of cash, if any, equal to the amount that would have been obtained upon the exercise of such right had such right been currently exercisable or (ii) the replacement of such
outstanding right with other rights or property selected by the Administrator in its sole discretion; 
 (b) To provide that the outstanding
rights under the Plan shall be assumed by the successor or survivor corporation, or a parent or subsidiary thereof, or shall be substituted for by similar rights covering the stock of the successor or survivor corporation, or a parent or subsidiary
thereof, with appropriate adjustments as to the number and kind of shares and prices; 

  
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 (c) To make adjustments in the number and type of Shares (or other securities or property)
subject to outstanding rights under the Plan and/or in the terms and conditions of outstanding rights and rights that may be granted in the future; 

(d) To provide that Participants’ accumulated payroll deductions or contributions may be used to purchase Common Stock prior to the next
occurring Purchase Date on such date as the Administrator determines in its sole discretion and the Participants’ rights under the ongoing Offering Period(s) shall be terminated; and 

(e) To provide that all outstanding rights shall terminate without being exercised. 

8.3 No Adjustment Under Certain Circumstances. No adjustment or action described in this Article VIII or in any other provision of
the Plan shall be authorized to the extent that such adjustment or action would cause the Plan to fail to satisfy the requirements of Section 423 of the Code. 

8.4 No Other Rights. Except as expressly provided in the Plan, no Participant shall have any rights by reason of any subdivision or
consolidation of shares of stock of any class, the payment of any dividend, any increase or decrease in the number of shares of stock of any class or any dissolution, liquidation, merger, or consolidation of the Company or any other corporation.
Except as expressly provided in the Plan or pursuant to action of the Administrator under the Plan, no issuance by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number of Shares subject to outstanding rights under the Plan or the Purchase Price with respect to any outstanding rights. 

ARTICLE IX. 
 AMENDMENT,
MODIFICATION AND TERMINATION 
 9.1 Amendment, Modification and Termination. The Administrator may amend, suspend or terminate
the Plan at any time and from time to time; provided, however, that approval of the Company’s stockholders shall be required to amend the Plan to: (a) increase the aggregate number, or change the type, of shares that
may be sold pursuant to rights under the Plan under Section 3.1 (other than an adjustment as provided by Article VIII); (b) change the corporations or classes of corporations whose employees may be granted rights under the Plan; or
(c) change the Plan in any manner that would cause the Plan to no longer be an “employee stock purchase plan” within the meaning of Section 423(b) of the Code. 

9.2 Certain Changes to Plan. Without stockholder consent and without regard to whether any Participant rights may be considered to have
been adversely affected, to the extent permitted by Section 423 of the Code, the Administrator shall be entitled to change or terminate the Offering Periods, limit the frequency and/or number of changes in the amount withheld from Compensation
during an Offering Period, establish the exchange ratio applicable to amounts withheld in a currency other than U.S. dollars, permit payroll withholding in excess of the amount designated by a Participant in order to adjust for delays or mistakes in
the Company’s processing of payroll withholding elections, establish reasonable waiting and adjustment periods and/or accounting and crediting procedures to ensure that amounts applied toward the purchase of Common Stock for each Participant
properly correspond with amounts withheld from the Participant’s Compensation, and establish such other limitations or procedures as the Administrator determines in its sole discretion to be advisable that are consistent with the Plan. 

9.3 Actions In the Event of Unfavorable Financial Accounting Consequences. In the event the Administrator determines that the ongoing
operation of the Plan may result in unfavorable financial accounting consequences, the Administrator may, in its discretion and, to the extent necessary or desirable, modify or amend the Plan to reduce or eliminate such accounting consequence
including, but not limited 

  
 11 

 
to: 
 (a) altering the Purchase Price for any Offering Period including an Offering
Period underway at the time of the change in Purchase Price; 
 (b) shortening any Offering Period so that the Offering Period ends on a new
Purchase Date, including an Offering Period underway at the time of the Administrator action; and 
 (c) allocating Shares. 

Such modifications or amendments shall not require stockholder approval or the consent of any Participant. 

9.4 Payments Upon Termination of Plan. Upon termination of the Plan, the balance in each Participant’s Plan account shall be
refunded as soon as practicable after such termination, without any interest thereon. 
 ARTICLE X. 

TERM OF PLAN 
 The Plan
shall be effective on the Effective Date. The effectiveness of the Plan shall be subject to approval of the Plan by the stockholders of the Company within twelve months following the date the Plan is first approved by the Board. No right may be
granted under the Plan prior to such stockholder approval. The Plan shall be in effect until the tenth anniversary of the date of the initial adoption of the Plan by the Board, unless sooner terminated under Section 9.1 hereof. No rights may be
granted under the Plan during any period of suspension of the Plan or after termination of the Plan. 
 ARTICLE XI. 

ADMINISTRATION 
 11.1
Administrator. Unless otherwise determined by the Board, the Administrator of the Plan shall be the Compensation Committee of the Board (or another committee or a subcommittee of the Board to which the Board delegates administration of the
Plan) (such committee, the “Committee”). The Board may at any time vest in the Board any authority or duties for administration of the Plan. 

11.2 Action by the Administrator. Unless otherwise established by the Board or in any charter of the Administrator, a majority of the
Administrator shall constitute a quorum. The acts of a majority of the members present at any meeting at which a quorum is present and, subject to Applicable Law and the Bylaws of the Company, acts approved in writing by a majority of the
Administrator in lieu of a meeting, shall be deemed the acts of the Administrator. Each member of the Administrator is entitled to, in good faith, rely or act upon any report or other information furnished to that member by any officer or other
employee of the Company or any Designated Subsidiary, the Company’s independent certified public accountants, or any executive compensation consultant or other professional retained by the Company to assist in the administration of the Plan.

 11.3 Authority of Administrator. The Administrator shall have the power, subject to, and within the limitations of, the express
provisions of the Plan: 
 (a) To determine when and how rights to purchase Common Stock shall be granted and the provisions of each offering
of such rights (which need not be identical). 

  
 12 

 (b) To designate from time to time which Subsidiaries of the Company shall be Designated
Subsidiaries, which designation may be made without the approval of the stockholders of the Company. 
 (c) To construe and interpret the
Plan and rights granted under it, and to establish, amend and revoke rules and regulations for its administration. The Administrator, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan, in a manner and to
the extent it shall deem necessary or expedient to make the Plan fully effective. 
 (d) To amend, suspend or terminate the Plan as provided
in Article IX. 
 (e) Generally, to exercise such powers and to perform such acts as the Administrator deems necessary or expedient to
promote the best interests of the Company and its Subsidiaries and to carry out the intent that the Plan be treated as an “employee stock purchase plan” within the meaning of Section 423 of the Code. 

11.4 Decisions Binding. The Administrator’s interpretation of the Plan, any rights granted pursuant to the Plan, any subscription
agreement and all decisions and determinations by the Administrator with respect to the Plan are final, binding, and conclusive on all parties. 

ARTICLE XII. 

MISCELLANEOUS 
 12.1
Restriction upon Assignment. A right granted under the Plan shall not be transferable other than by will or the applicable laws of descent and distribution, and is exercisable during the Participant’s lifetime only by the Participant.
Except as provided in Section 12.4 hereof, a right under the Plan may not be exercised to any extent except by the Participant. The Company shall not recognize and shall be under no duty to recognize any assignment or alienation of the
Participant’s interest in the Plan, the Participant’s rights under the Plan or any rights thereunder. 
 12.2 Rights as a
Stockholder. With respect to Shares subject to a right granted under the Plan, a Participant shall not be deemed to be a stockholder of the Company, and the Participant shall not have any of the rights or privileges of a stockholder,
until such Shares have been issued to the Participant or his or her nominee following exercise of the Participant’s rights under the Plan. No adjustments shall be made for dividends (ordinary or extraordinary, whether in cash securities, or
other property) or distribution or other rights for which the record date occurs prior to the date of such issuance, except as otherwise expressly provided herein or as determined by the Administrator. 

12.3 Interest. No interest shall accrue on the payroll deductions or contributions of a Participant under the Plan. 

12.4 Designation of Beneficiary. 

(a) A Participant may, in the manner determined by the Administrator, file a written designation of a beneficiary who is to receive any Shares
and/or cash, if any, from the Participant’s account under the Plan in the event of such Participant’s death subsequent to a Purchase Date on which the Participant’s rights are exercised but prior to delivery to such Participant of
such Shares and cash. In addition, a Participant may file a written designation of a beneficiary who is to receive any cash from the Participant’s account under the Plan in the event of such Participant’s death prior to exercise of the
Participant’s rights under the Plan. If the Participant is married and resides in a community property state, a designation of a person other than the Participant’s spouse as his or her beneficiary shall not be effective without the prior
written consent of the Participant’s spouse. 

  
 13 

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

12.5 Notices. All notices or other communications by a Participant to the Company under or in connection with the Plan shall be deemed
to have been duly given when received in the form specified by the Company at the location, or by the person, designated by the Company for the receipt thereof. 

12.6 Equal Rights and Privileges. Subject to Section 5.7, all Eligible Employees will have equal rights and privileges under this
Plan so that this Plan qualifies as an “employee stock purchase plan” within the meaning of Section 423 of the Code. Subject to Section 5.7, any provision of this Plan that is inconsistent with Section 423 of the Code will,
without further act or amendment by the Company, the Board or the Administrator, be reformed to comply with the equal rights and privileges requirement of Section 423 of the Code. 

12.7 Use of Funds. All payroll deductions or contributions received or held by the Company under the Plan may be used by the Company for
any corporate purpose, and the Company shall not be obligated to segregate such payroll deductions or contributions. 
 12.8 Reports.
Statements of account shall be given to Participants at least annually, which statements shall set forth the amounts of payroll deductions or contributions, the Purchase Price, the number of Shares purchased and the remaining cash balance, if any.

 12.9 No Employment Rights. Nothing in the Plan shall be construed to give any person (including any Eligible Employee or
Participant) the right to remain in the employ of the Company or any Parent or Subsidiary or affect the right of the Company or any Parent or Subsidiary to terminate the employment of any person (including any Eligible Employee or Participant) at
any time, with or without cause. 
 12.10 Notice of Disposition of Shares. Each Participant shall give prompt notice to the Company of
any disposition or other transfer of any Shares purchased upon exercise of a right under the Plan if such disposition or transfer is made: (a) within two years from the Grant Date of the Offering Period in which the Shares were purchased or
(b) within one year after the Purchase Date on which such Shares were purchased. Such notice shall specify the date of such disposition or other transfer and the amount realized, in cash, other property, assumption of indebtedness or other
consideration, by the Participant in such disposition or other transfer. 
 12.11 Governing Law. The Plan and any agreements hereunder
shall be administered, interpreted and enforced under the internal laws of the State of Delaware without regard to conflicts of laws thereof or of any other jurisdiction. 

12.12 Electronic Forms. To the extent permitted by Applicable Law and in the discretion of the Administrator, an Eligible Employee may
submit any form or notice as set forth herein by means of an electronic form approved by the Administrator. Before the commencement of an Offering Period, the Administrator shall prescribe the time limits within which any such electronic form shall
be submitted to the Administrator with respect to such Offering Period in order to be a valid election. 

  
 14 

 CRINETICS PHARMACEUTICALS, INC. 

2018 EMPLOYEE STOCK PURCHASE PLAN 

OFFERING DOCUMENT 
 This document (this
“Offering Document”) is hereby adopted by the Board of Directors of Crinetics Pharmaceuticals, Inc. (the “Company”), in its capacity as Administrator of the Crinetics
Pharmaceuticals, Inc. 2018 Employee Stock Purchase Plan (the “Plan”) and is hereby incorporated by reference into and made a part of the Plan. A copy of this Offering Document shall be attached to the Plan.
Defined terms used herein without definition shall have the meanings specified in the Plan. 
 This Offering Document shall apply with respect to Offering
Periods under the Plan until this Offering Document is terminated, amended or modified by the Administrator or a new Offering Document is adopted by the Administrator. 
  

			
	Eligibility Requirements:	  	Only Eligible Employees of the Company and any Designated Subsidiaries shall be eligible to participate, provided they meet the other eligibility requirements set forth in the Plan.
		
		  	An Employee shall not be an Eligible Employee if such Employee’s customary employment is for twenty hours or less per week, or such Employee’s customary employment is for less than five months in any calendar
year.
		
	Offering Periods:	  	The Plan shall be implemented by consecutive, overlapping Offering Periods of approximately twenty-four months in length commencing on each May 21 and November 21 during the term of the Plan (each, the
“Enrollment Date”), and terminating on the May 20 or November 20 occurring twenty-four months later (or, if such days are not Trading Days, the immediately preceding Trading Day), as applicable. The
“Grant Date” of each Offering Period shall be the first Trading Day within such Offering Period (which may be the same as the Enrollment Date). Each Offering Period shall include four Purchase Periods.
		
		  	However, the initial Offering Period under the Plan (the “Initial Offering Period”) may be less than twenty-four months in length and shall commence on the Effective Date of the Plan (such date, the
“Initial Enrollment Date”) and shall end on the May 20 or November 20 that is at least eighteen months but no more than twenty-four months thereafter (or, if such days are not Trading Days, the immediately preceding
Trading Day, as applicable).

  
 1 

			
		
		  	The Initial Offering Period shall still consist of four Purchase Periods.
		
		  	The Grant Date for purposes of the Initial Offering Period (the “Initial Grant Date”) shall be the date on which the Company’s registration statement filed in connection with the initial public offering
of the Common Stock is declared effective.
		
		  	If the Fair Market Value on any Purchase Date (except the final scheduled Purchase Date of any Offering Period) is less than the Fair Market Value on the Grant Date for that Offering Period, then that Offering Period will
immediately terminate on such Purchase Date after the acquisition of shares of Common Stock for the applicable Purchase Period, and each Participant shall automatically be enrolled in the Offering Period that commences on the next occurring
May 21 or November 21 on the same terms and conditions as in effect under the Participant’s subscription agreement on file for the terminated Offering Period.
		
	Purchase Periods:	  	With the exception of the first Purchase Period under the Initial Offering Period, Purchase Periods under the Plan will be the approximately six-month periods commencing on each May 21
and November 21 following the Effective Date and ending on the next occurring November 20 or May 20 (or, if such days are not Trading Days, the immediately preceding Trading Day), as applicable (each, a “Purchase
Date”). The first Purchase Period under the Initial Offering Period may be shorter than six-months in length and shall commence on the Initial Grant Date and shall end on the next occurring
November 20 or May 20 (or, if such day is not a Trading Day, the immediately preceding Trading Day), as applicable.
		
	Maximum Number of Shares That May Be Purchased By an Eligible Employee During an Offering Period:	  	100,000 Shares
		
	Maximum Number of Shares That May Be Purchased By an Eligible Employee During a Purchase Period:	  	100,000 Shares
		
	Purchase Price:	  	On each Purchase Date during an Offering Period, the purchase price for a Share will be 85% of the Fair Market Value of a Share on the Grant Date for such Offering Period or on the Purchase Date, whichever is lower; provided,
however, that the Purchase Price may be

  
 2 

			
		
		  	adjusted by the Administrator as provided in the Plan; provided, further, that the Purchase Price shall not be less than the par value of a Share.
		
	Contributions:	  	A Participant may elect to have up to 20% of his or her Compensation deducted on each payday on an after-tax basis for use in purchasing Common Stock pursuant to the Plan.
		
	Enrollment:	  	With the exception of the Initial Offering Period, Eligible Employees must enroll in an Offering Period by delivering a subscription agreement to the Company on or prior to the Enrollment Date of such Offering Period (or such longer
period prior to the Enrollment Date as may be determined by the Company).
		
		  	A Participant may participate in only one Offering Period at a given time.
		
	First Offering Period Only:	  	Each Eligible Employee who is employed by the Company or a Designated Subsidiary on the Initial Enrollment Date shall automatically become a Participant in the Plan with respect to the Initial Offering Period. Each such Participant
shall be granted a right to purchase shares of Common Stock and shall be enrolled in such Initial Offering Period to the extent of 20% of his or her Compensation for the paydays during the Initial Offering Period (or, if less, the maximum amount of
contributions permitted to be made by such Participant for such Offering Period by payroll deduction under the terms of the Plan). Following the Initial Grant Date (but in no event prior to the date on which the Company’s registration statement
on Form S-8 is filed with respect to the Plan), each such Participant may, during the period designated from time to time by the Administrator for such purpose, (i) elect to make such contributions (or a
lesser amount of contributions) for the Initial Offering Period by payroll deductions in accordance with the Plan, (ii) for the first Purchase Period in the Initial Offering Period only, elect to make such contributions (or a lesser amount of
contributions) for such first Purchase Period by making a lump sum cash payment to the Company not later than ten calendar days before the first Purchase Date during the Initial Offering Period (or such shorter or longer period as may be determined
by the Company), and such payment may be made in an amount not exceeding 20% of such Participant’s Compensation for the paydays occurring during such Purchase Period and occurring prior to such lump sum payment, or (iii) elect to make no
contributions for such Initial Offering Period; provided, however, that, to make contributions by payroll deductions, such Participant must complete the form of

  
 3 

			
		  	subscription agreement provided by the Company for the Initial Offering Period under this Plan during the time designated by the Administrator for such purpose. If (i) during the Initial Offering Period, a Participant elects to
make contributions by payroll deduction, or elects to make no contributions for such Offering Period, or (ii) on or prior to the tenth calendar day before the last day of the first Purchase Period during the Initial Offering Period, such a
Participant fails to make any lump sum cash payment, such Participant shall be deemed to have elected not to make contributions by lump sum payment with respect to the Initial Offering Period.
		
		  	The Fair Market Value for a Share on the Initial Grant Date shall be the initial public offering price of a Share in the Company’s initial public offering of its Common Stock.
		
	Changes in Contribution Rates:	  	Participants may decrease or suspend their rate of contributions once during each Purchase Period. Participants may increase their rate of contributions for any future Purchase Period or Offering Period. Any increase in the rate of
contributions to be effective for a future Purchase Period or Offering Period must be made prior to the first day of such Purchase Period or Offering Period.
		
	Withdrawals:	  	A Participant must withdraw from an Offering Period at least one week prior to the last day of the Offering Period (or such shorter or longer period as may be determined by the Company).
		
		  	If a Participant withdraws from the Plan, the Participant may elect to participate again in the Plan for any subsequent Offering Period so long as he or she is still eligible to participate in the Plan.

 *  *  *  *  * 

  
 4EX-10.8

 Exhibit 10.8 

EMPLOYMENT AGREEMENT 

THIS EMPLOYMENT AGREEMENT (this “Agreement”) is entered into by and between Crinetics Pharmaceuticals, Inc., a
Delaware corporation (the “Company”), and Alan Krasner, M.D. (“Executive”), and shall be effective as of June 15, 2018 (the “Effective Date”). 

WHEREAS, the Company desires to employ Executive, and Executive desires to accept employment with the Company, on the terms and conditions set
forth in this Agreement. 
 NOW, THEREFORE, in consideration of the mutual promises herein contained, the parties agree as follows: 

1. Definitions. As used in this Agreement, the following terms shall have the following meanings: 

(a) “Acquisition” means (i) any consolidation or merger of the Company with or into any other corporation or other
entity or person, or any other corporate reorganization, other than any such consolidation, merger or reorganization in which the shares of capital stock of the Company immediately prior to such consolidation, merger or reorganization, continue to
represent a majority of the voting power of the surviving entity (or, if the surviving entity is a wholly owned subsidiary, its parent) immediately after such consolidation, merger or reorganization (provided that, for the purpose of this
Section 1(a), all shares of the Company’s common stock issuable upon exercise of options outstanding immediately prior to such consolidation or merger or upon conversion of Convertible Securities outstanding immediately prior to such
merger or consolidation shall be deemed to be outstanding immediately prior to such merger or consolidation and, if applicable, converted or exchanged in such merger or consolidation on the same terms as the actual outstanding shares of capital
stock are converted or exchanged); or (ii) any transaction or series of related transactions to which the Company is a party in which in excess of fifty percent (50%) of the Company’s voting power is transferred; provided that an
Acquisition shall not include any transaction or series of transactions principally for bona fide equity financing purposes in which cash is received by the Company or any successor or indebtedness of the Company is cancelled or converted or a
combination thereof. 
 (b) “Asset Transfer” means a sale, lease, exclusive license or other disposition of all or
substantially all of the assets of the Company. 
 (c) “Board” means the Board of Directors of the Company. 

(d) “Cause” means any of the following: 

(i) the commission of an act of fraud, embezzlement or dishonesty by Executive, or the commission of some other illegal act by Executive, that
causes material harm to the Company or any successor or affiliate thereof; 

 (ii) Executive’s conviction of, or plea of “guilty” or “no contest” to,
a felony or any crime involving fraud, dishonesty or moral turpitude under the laws of the United States or any state thereof; 
 (iii) any
intentional unauthorized use or disclosure by Executive of confidential information or trade secrets of the Company or any successor or affiliate thereof that has a material adverse impact on the Company; 

(iv) Executive’s gross negligence, insubordination or material violation of any duty of loyalty to the Company or any successor or
affiliate thereof, or any other material misconduct on the part of Executive; 
 (v) Executive’s ongoing and repeated failure or
refusal to perform or neglect of Executive’s duties as required by this Agreement, which failure, refusal or neglect continues for fifteen (15) days following Executive’s receipt of written notice from the Board or the Company’s
Chief Executive Officer (the “CEO”) stating with specificity the nature of such failure, refusal or neglect; or 

(vi) Executive’s intentional, material breach of any Company policy or any contract or agreement between Executive and the Company or any
successor or affiliate thereof; 
 provided, however, that prior to the determination that “Cause” under clauses (iv), (v) or
(vi) of this Section 1(d) has occurred, the Company shall (A) provide to Executive in writing, in reasonable detail, the reasons for the determination that such “Cause” exists, (B) other than with respect to clause
(v) above which specifies the applicable period of time for Executive to remedy his or her breach, afford Executive a reasonable opportunity to remedy any such breach, (C) provide Executive an opportunity to be heard prior to the final
decision to terminate Executive’s employment hereunder for such “Cause” and (D) make any decision that such “Cause” exists in good faith. 

The foregoing definition shall not in any way preclude or restrict the right of the Company or any successor or affiliate thereof to discharge
or dismiss Executive for any other acts or omissions, but such other acts or omissions shall not be deemed, for purposes of this Agreement, to constitute grounds for termination for Cause. 

(e) “Change in Control” means an Acquisition or Asset Transfer; provided, however, that, from and
after the date on which the Company’s Registration Statement on Form S-1 filed with respect to the Company’s initial public offering becomes effective, “Change in Control” shall have the
meaning given to such term in the Company’s 2018 Incentive Award Plan as in effect on such date. 
 Notwithstanding the foregoing, if a
Change in Control constitutes a payment event with respect to any payment hereunder that provides for the deferral of compensation that is subject to Section 409A, to the extent required to avoid the imposition of additional taxes under
Section 409A, the transaction or event with respect to such payment shall only constitute a Change in Control for purposes of the payment timing of such payment if such transaction also 

  
 2 

 
constitutes a “change in control event,” as defined in Treasury Regulation Section 1.409A-3(i)(5). 

(f) “Code” means the Internal Revenue Code of 1986, as amended from time to time, and the Treasury Regulations and
other interpretive guidance issued thereunder. 
 (g) “Convertible Securities” means preferred stock or other stock,
options, warrants, purchase rights or other securities exercisable for or convertible into, additional shares of the Company’s common stock. 

(h) “Good Reason” means the occurrence of any of the following events or conditions without Executive’s written
consent: 
 (i) a material diminution in Executive’s authority, duties or responsibilities; 

(ii) a material diminution in Executive’s base compensation, unless such a reduction is imposed across-the-board to senior executives of the Company; 
 (iii) a material change in the geographic
location at which Executive must perform his or her duties; or 
 (iv) any other action or inaction that constitutes a material breach by
the Company or any successor or affiliate of its obligations to Executive under this Agreement. 
 Executive must provide written notice to
the Company of the occurrence of any of the foregoing events or conditions without Executive’s written consent within sixty (60) days of the occurrence of such event. The Company or any successor or affiliate shall have a period of thirty
(30) days to cure such event or condition after receipt of written notice of such event from Executive. Executive’s Separation from Service by reason of resignation from employment with the Company for Good Reason must occur within thirty
(30) days following the expiration of the foregoing thirty (30) day cure period. 
 (i) “Involuntary
Termination” means (i) Executive’s Separation from Service by reason of Executive’s discharge by the Company other than for Cause, or (ii) Executive’s Separation from Service by reason of Executive’s
resignation of employment with the Company for Good Reason. Executive’s Separation from Service by reason of Executive’s death or discharge by the Company following Executive’s Permanent Disability shall not constitute an Involuntary
Termination. 
 (j) Executive’s “Permanent Disability” shall be deemed to have occurred if Executive shall
become physically or mentally incapacitated or disabled or otherwise unable fully to discharge his or her duties hereunder for a period of ninety (90) consecutive calendar days or for one hundred twenty (120) calendar days in any one
hundred eighty (180) calendar-day period. The existence of Executive’s Permanent Disability shall be determined by the Company on the advice of a physician chosen by the Company and the Company
reserves the right to have Executive examined by a physician chosen by the Company at the Company’s expense. 

  
 3 

 (k) “Separation from Service,” with respect to Executive, means
Executive’s “separation from service,” as defined in Treasury Regulation Section 1.409A-1(h). 

(l) “Stock Awards” means all stock options, restricted stock and such other awards granted pursuant to the
Company’s stock option and equity incentive award plans or agreements and any shares of stock issued upon exercise thereof. 
 2.
Services to Be Rendered. 
 (a) Duties and Responsibilities. Executive shall serve as Chief Medical Officer of the Company. In
the performance of such duties, Executive shall report directly to the CEO and shall be subject to the direction of the CEO and to such limits upon Executive’s authority as the CEO may from time to time impose. In the event of the
CEO’s incapacity or unavailability, Executive shall be subject to the direction of the Board. Executive hereby consents to serve as an officer and/or director of the Company or any subsidiary or affiliate thereof without any additional salary
or compensation, if so requested by the CEO. Executive shall be employed by the Company on a full time basis. Executive’s primary place of work shall be the Company’s offices in San Diego, California, or, with the Company’s consent,
at any other place at which the Company maintains an office; provided, however, that the Company may from time to time require Executive to travel temporarily to other locations in connection with the Company’s business. Executive
shall be subject to and comply with the policies and procedures generally applicable to senior executives of the Company to the extent the same are not inconsistent with any term of this Agreement. 

(b) Exclusive Services. Executive shall at all times faithfully, industriously and to the best of his or her ability, experience and
talent perform to the satisfaction of the Board and the CEO all of the duties that may be assigned to Executive hereunder and shall devote substantially all of his or her productive time and efforts to the performance of such duties. Subject
to the terms of the Proprietary Information and Inventions Agreement referred to in Section 5(b), this shall not preclude Executive from (i) serving on industry trade, civic, or charitable boards or committees; (ii) delivering
lectures or fulfilling speaking engagements; (iii) serving on the board of directors or other similar governance body of any entity, subject to the consent of the Board, such consent not to be unreasonably withheld; or (iv) managing
personal, family and other investments, provided such activities do not interfere with his or her duties to the Company, as determined in good faith by the CEO. Executive agrees that he or she will not join any boards, other than community and civic
boards (which do not interfere with his or her duties to the Company), without the prior approval of the Board and the CEO.  

3. Compensation and Benefits. The Company shall pay or provide, as the case may be, to Executive the compensation and other benefits and
rights set forth in this Section 3. 
 (a) Base Salary. The Company shall pay to Executive a base salary of $375,000 per year,
payable in accordance with the Company’s usual pay practices (and in any event no less frequently than monthly). Executive’s base salary shall be subject to review annually by and at the sole discretion of the Compensation Committee of the
Board or its designee. 
 (b) Bonus. Executive shall participate in any bonus plan that the Board or its designee may approve for the
senior executives of the Company. Executive’s target bonus under the Company’s annual bonus plan shall be thirty-five percent (35%) of Executive’s base salary. Executive’s annual bonus for 2018 shall be pro-rated for partial year service. 

  
 4 

 (c) Benefits. Executive shall be entitled to participate in benefits under the
Company’s benefit plans and arrangements, including, without limitation, any employee benefit plan or arrangement made available in the future by the Company to its senior executives, subject to and on a basis consistent with the terms,
conditions and overall administration of such plans and arrangements. The Company shall have the right to amend or delete any such benefit plan or arrangement made available by the Company to its senior executives and not otherwise specifically
provided for herein. 
 (d) Expenses. The Company shall reimburse Executive for reasonable out-of-pocket business expenses incurred in connection with the performance of his or her duties hereunder, subject to such policies as the Company may from time to time establish, and Executive furnishing
the Company with evidence in the form of receipts satisfactory to the Company substantiating the claimed expenditures. 
 (e) Paid Time
Off. Executive shall be entitled to such periods of paid time off (“PTO”) each year as provided from time to time under the Company’s PTO policy and as otherwise provided for senior executive officers;
provided that Executive shall be entitled to at least twenty (20) days’ of PTO per year. 
 (f) Equity Awards and
Plans. 
 (i) As soon as practicable following the Effective Date, and subject to the approval of the Board, Executive shall receive
stock options to purchase 550,000 shares of the Company’s common stock pursuant to the Company’s 2015 Stock Incentive Plan (the “Equity Plan”). Such stock options shall have an exercise price equal to the “Fair
Market Value” per share of the Company’s common stock on the date of grant, as determined by the Board. The shares subject to such stock options shall vest as follows: one-fourth (1/4th) of the
shares subject to the option shall vest on the first anniversary of the Effective Date, and the remaining shares subject to the option shall vest in thirty-six (36) equal monthly installment over the
three-year period thereafter, subject to Executive’s continued employment or service with the Company on each such date. Such stock options shall have a ten (10) year term and shall be subject to the terms and conditions of the Equity Plan
and the stock option agreement pursuant to which such stock options are granted. 
 (ii) Executive shall be entitled to participate in any
equity or other employee benefit plan that is generally available to executives of the Company. Except as otherwise provided in this Agreement, Executive’s participation in and benefits under any such plan shall be on the terms and subject to
the conditions specified in the governing document of the particular plan. 

  
 5 

 (g) Stock Award Acceleration. 

(i) Subject to Section 4(d), in the event of Executive’s Separation from Service by reason of Executive’s death or discharge by
the Company following Executive’s Permanent Disability, the vesting and/or exercisability of 100% of Executive’s outstanding unvested Stock Awards shall be automatically accelerated on the date of Executive’s Separation from Service.

 (ii) Subject to Section 4(d), in the event of a Change in Control, the vesting and/or exercisability of 100% of Executive’s
outstanding unvested Stock Awards shall be automatically accelerated on the first to occur of (A) Executive’s Involuntary Termination following such Change in Control, or (B) the first anniversary of the closing of such Change in
Control. 
 (iii) Subject to Section 4(d), in the event of Executive’s Involuntary Termination prior to the occurrence of a Change
in Control, the vesting and/or exercisability of any outstanding unvested portion of each of Executive’s Stock Awards shall be automatically accelerated as to the number of Stock Awards that would vest over the nine (9) month period
following the date of Executive’s Separation from Service had Executive remained continuously employed by the Company during such period. 

(iv) The vesting pursuant to clauses (i), (ii) and (iii) of this Section 3(g) shall be cumulative. The foregoing provisions are
hereby deemed to be a part of each Stock Award and to supersede any less favorable provision in any agreement or plan regarding such Stock Award. 

4. Severance. Executive shall be entitled to receive benefits upon a Separation from Service only as set forth in this Section 4:

 (a) At-Will Employment; Termination. The Company and Executive acknowledge that
Executive’s employment is and shall continue to be at-will, as defined under applicable law, and that Executive’s employment with the Company may be terminated by either party at any time for any or
no reason, with or without notice. If Executive’s employment terminates for any reason, Executive shall not be entitled to any payments, benefits, damages, awards or compensation other than as provided in this Agreement. Executive’s
employment under this Agreement shall be terminated immediately on the death of Executive. 
 (b) Severance Upon Involuntary
Termination. Subject to Sections 4(d) and 9(o) and Executive’s continued compliance with Section 5, if Executive’s employment is Involuntarily Terminated, Executive shall be entitled to receive, in lieu of any severance benefits
to which Executive may otherwise be entitled under any severance plan or program of the Company, the benefits provided below: 
 (i) the
Company shall pay to Executive his or her fully earned but unpaid base salary, when due, through the date of Executive’s Involuntary Termination at the rate then in effect, accrued and unused PTO, plus all other benefits, if any, under any
Company group retirement plan, nonqualified deferred compensation plan, equity award plan or agreement (other 

  
 6 

 
than any such plan or agreement pertaining to Stock Awards whose treatment is prescribed by Section 3(g) above), health benefits plan or other Company group benefit plan to which Executive
may be entitled pursuant to the terms of such plans or agreements at the time of Executive’s Involuntary Termination (the “Accrued Obligations”); 

(ii) Executive shall be entitled to receive severance pay in an amount equal to nine (9) multiplied by Executive’s monthly base
salary as in effect immediately prior to the date of Executive’s Involuntary Termination, which amount shall be payable in a lump sum sixty (60) days following Executive’s Involuntary Termination; and 

(iii) for the period beginning on the date of Executive’s Separation from Service and ending on the date which is nine (9) full
months following the date of Executive’s Separation from Service (or, if earlier, (1) the date on which the applicable continuation period under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended
(“COBRA”) expires or (2) the date Executive becomes eligible to receive the equivalent or increased healthcare coverage by means of subsequent employment or self-employment) (such period, the “COBRA Coverage
Period”), if Executive and/or his or her eligible dependents who were covered under the Company’s health insurance plans as of the date of Executive’s Separation from Service elect to have COBRA coverage and are eligible for
such coverage, the Company shall pay for or reimburse Executive on a monthly basis for an amount equal to (A) the monthly premium Executive and/or his or her covered dependents, as applicable, are required to pay for continuation coverage
pursuant to COBRA for Executive and/or his or her eligible dependents, as applicable, who were covered under the Company’s health plans as of the date of Executive’s Separation from Service (calculated by reference to the premium as of the
date of Executive’s Separation from Service) less (B) the amount Executive would have had to pay to receive group health coverage for Executive and/or his or her covered dependents, as applicable, based on the cost sharing levels in effect
on the date of Executive’s Separation from Service. If any of the Company’s health benefits are self-funded as of the date of Executive’s Separation from Service, or if the Company cannot provide the foregoing benefits in a manner
that is exempt from Section 409A (as defined below) or that is otherwise compliant with applicable law (including, without limitation, Section 2716 of the Public Health Service Act), instead of providing the payments or reimbursements as
set forth above, the Company shall instead pay to Executive the foregoing monthly amount as a taxable monthly payment for the COBRA Coverage Period (or any remaining portion thereof). Executive shall be solely responsible for all matters relating to
continuation of coverage pursuant to COBRA, including, without limitation, the election of such coverage and the timely payment of premiums. Executive shall notify the Company immediately if Executive becomes eligible to receive the equivalent or
increased healthcare coverage by means of subsequent employment or self-employment. 
 (iv) Notwithstanding anything to the contrary in this
Section 4(b), and subject to Sections 4(d) and 9(o) and Executive’s continued compliance with Section 5, in the event of Executive’s Involuntary Termination within twelve (12) months following a Change in Control,
(A) the references to nine (9) months in clauses (ii) and (iii) above shall be increased to twelve (12) months, and (B) Executive shall be entitled to receive, in addition to the severance benefits described in clauses (i),
(ii) and (iii) above, an amount equal to Executive’s target bonus for the year in which Executive’s Involuntary Termination occurs, which amount shall be payable in a lump sum sixty (60) days following Executive’s
Involuntary Termination. 

  
 7 

 (c) Termination for Cause, Voluntary Resignation Without Good Reason, Death or Termination for
Permanent Disability. In the event of Executive’s termination of employment as a result of Executive’s discharge by the Company for Cause, Executive’s resignation without Good Reason, Executive’s death or Executive’s
termination of employment following Executive’s Permanent Disability, the Company shall not have any other or further obligations to Executive under this Agreement (including any financial obligations) except that Executive shall be entitled to
receive the Accrued Obligations. The foregoing shall be in addition to, and not in lieu of, any and all other rights and remedies which may be available to the Company under the circumstances, whether at law or in equity. 

(d) Release. As a condition to Executive’s receipt of any post-termination benefits pursuant to Section 4(b) above, Executive
(or, in the event of Executive’s incapacity as a result of his or her Permanent Disability, Executive’s legal representative) shall execute and not revoke a general release of all claims in favor of the Company (the
“Release”) in the form attached hereto as Exhibit A. In the event the Release does not become effective within the fifty-five (55) day period following the date of Executive’s Separation from Service, Executive
shall not be entitled to the aforesaid payments and benefits. 
 (e) Exclusive Remedy. Except as otherwise expressly required by law
(e.g., COBRA) or as specifically provided herein, all of Executive’s rights to salary, severance, benefits, bonuses and other amounts hereunder (if any) accruing after the termination of Executive’s employment shall cease upon such
termination. In the event of Executive’s termination of employment with the Company, Executive’s sole remedy shall be to receive the payments and benefits described in Section 3(g) and this Section 4. In addition, Executive
acknowledges and agrees that he or she is not entitled to any reimbursement by the Company for any taxes payable by Executive as a result of the payments and benefits received by Executive pursuant to Section 3(g) and this Section 4,
including, without limitation, any excise tax imposed by Section 4999 of the Code. Any payments made to Executive under this Section 4 shall be inclusive of any amounts or benefits to which Executive may be entitled pursuant to the Worker
Adjustment and Retraining Notification Act, 29 U.S.C. Sections 2101 et seq., and the Department of Labor regulations thereunder, or any similar state statute. 

(f) No Mitigation. Except as otherwise provided in Section 4(b)(iii) above, Executive shall not be required to mitigate the amount
of any payment provided for in this Section 4 by seeking other employment or otherwise, nor shall the amount of any payment or benefit provided for in this Section 4 be reduced by any compensation earned by Executive as the result of
employment by another employer or self-employment or by retirement benefits; provided, however, that loans, advances or other amounts owed by Executive to the Company may be offset by the Company against amounts payable to Executive
under this Section 4. 
 (g) Return of the Company’s Property. In the event of Executive’s termination of employment
for any reason, the Company shall have the right, at its option, to require Executive to vacate his or her offices prior to or on the effective date of separation and to cease all activities on the Company’s behalf. Upon Executive’s
termination of employment in any manner, as a condition to Executive’s receipt of any severance benefits described in this Agreement, Executive shall immediately surrender to the Company all lists, books and records of, or in connection with,
the Company’s business, and all other property belonging to the 

  
 8 

 
Company, it being distinctly understood that all such lists, books and records, and other documents, are the property of the Company. Executive shall deliver to the Company a signed statement
certifying compliance with this Section 4(g) prior to the receipt of any severance benefits described in this Agreement. 
 (h)
Deemed Resignation. Upon termination of Executive’s employment for any reason, Executive shall be deemed to have resigned from all offices and directorships, if any, then held with the Company or any of its affiliates, and, at the
Company’s request, Executive shall execute such documents as are necessary or desirable to effectuate such resignations. 
 5.
Certain Covenants. 
 (a) Noncompetition. Except as may otherwise be approved by the Board, during the term of Executive’s
employment, Executive shall not have any ownership interest (of record or beneficial) in, or have any interest as an employee, salesman, consultant, officer or director in, or otherwise aid or assist in any manner, any firm, corporation,
partnership, proprietorship or other business that engages in any county, city or part thereof in the United States and/or any foreign country in a business which competes directly or indirectly (as determined by the CEO) with the Company’s
business in such county, city or part thereof, so long as the Company, or any successor in interest of the Company to the business and goodwill of the Company, remains engaged in such business in such county, city or part thereof or continues to
solicit customers or potential customers therein; provided, however, that Executive may own, directly or indirectly, solely as an investment, securities of any entity which are traded on any national securities exchange if Executive
(i) is not a controlling person of, or a member of a group which controls, such entity; or (ii) does not, directly or indirectly, own one percent (1%) or more of any class of securities of any such entity. 

(b) Confidential Information. Executive and the Company have entered into the Company’s standard employee proprietary information
and inventions agreement (the “Employee Proprietary Information and Inventions Agreement”). Executive agrees to perform each and every obligation of Executive therein contained. 

(c) Solicitation of Employees. Executive shall not during the term of Executive’s employment and for a period of twelve
(12) months following Executive’s Separation from Service (the “Restricted Period”), directly or indirectly, solicit or encourage to leave the employment of the Company or any of its affiliates, any employee of the Company
or any of its affiliates. 
 (d) Solicitation of Consultants. Executive shall not during the term of Executive’s employment and
for the Restricted Period, directly or indirectly, encourage to cease work with the Company or any of its affiliates any consultant then under contract with the Company or any of its affiliates within one year of the termination of such
consultant’s engagement by the Company or any of its affiliates. 
 (e) Rights and Remedies Upon Breach. If Executive breaches or
threatens to commit a breach of any of the provisions of this Section 5 (the “Restrictive Covenants”), the Company shall have the following rights and remedies, each of which rights and remedies shall

  
 9 

 
be independent of the other and severally enforceable, and all of which rights and remedies shall be in addition to, and not in lieu of, any other rights and remedies available to the Company
under law or in equity: 
 (i) Specific Performance. With regard to breaches or threatened breaches of Sections 5(b) through 5(d)
only, the right and remedy to have the Restrictive Covenants specifically enforced by any court having equity jurisdiction, all without the need to post a bond or any other security or to prove any amount of actual damage or that money damages would
not provide an adequate remedy, it being acknowledged and agreed that any such breach or threatened breach will cause irreparable injury to the Company and that money damages will not provide adequate remedy to the Company; and 

(ii) Accounting. The right and remedy to require Executive to account for and pay over to the Company all compensation, profits,
monies, accruals, increments or other benefits derived or received by Executive or any associated party deriving such benefits as a result of any such breach of the Restrictive Covenants. 

(f) Severability of Covenants/Blue Pencilling. If any court determines that any of the Restrictive Covenants, or any part thereof, is
invalid or unenforceable, the remainder of the Restrictive Covenants shall not thereby be affected and shall be given full effect, without regard to the invalid portions. If any court determines that any of the Restrictive Covenants, or any part
thereof, are unenforceable because of the duration of such provision or the area covered thereby, such court shall have the power to reduce the duration or area of such provision and, in its reduced form, such provision shall then be enforceable and
shall be enforced. Executive hereby waives any and all right to attack the validity of the Restrictive Covenants on the grounds of the breadth of their geographic scope or the length of their term. 

(g) Enforceability in Jurisdictions. The Company and Executive intend to and do hereby confer jurisdiction to enforce the Restrictive
Covenants upon the courts of any jurisdiction within the geographical scope of such covenants. If the courts of any one or more of such jurisdictions hold the Restrictive Covenants wholly unenforceable by reason of the breadth of such scope or
otherwise, it is the intention of the Company and Executive that such determination not bar or in any way affect the right of the Company to the relief provided above in the courts of any other jurisdiction within the geographical scope of such
covenants, as to breaches of such covenants in such other respective jurisdictions, such covenants as they relate to each jurisdiction being, for this purpose, severable into diverse and independent covenants. 

(h) Whistleblower Provision. Nothing herein shall be construed to prohibit Executive from communicating directly with, cooperating with,
or providing information to, any government regulator, including, but not limited to, the U.S. Securities and Exchange Commission, the U.S. Commodity Futures Trading Commission, or the U.S. Department of Justice. Executive acknowledges that the
Company has provided Executive with the following notice of immunity rights in compliance with the requirements of the Defend Trade Secrets Act: (i) Executive shall not be held criminally or civilly liable under any Federal or State trade
secret law for the disclosure of proprietary information of the Company that is made in confidence to a Federal, State, or local government official or to an attorney solely for the purpose of reporting or investigating a suspected violation of law,
(ii) Executive shall not be held criminally or civilly 

  
 10 

 
liable under any Federal or State trade secret law for the disclosure of proprietary information of the Company that is made in a complaint or other document filed in a lawsuit or other
proceeding, if such filing is made under seal and (iii) if Executive files a lawsuit for retaliation by the Company for reporting a suspected violation of law, Executive may disclose the proprietary information to my attorney and use the
proprietary information in the court proceeding, if Executive files any document containing the proprietary information under seal, and does not disclose the proprietary information, except pursuant to court order. 

(i) Definitions. For purposes of this Section 5, the term “Company” means not only Crinetics Pharmaceuticals,
Inc., but also any company, partnership or entity which, directly or indirectly, controls, is controlled by or is under common control with Crinetics Pharmaceuticals, Inc. 

6. Insurance; Indemnification. 

(a) Insurance. The Company shall have the right to take out life, health, accident,
“key-man” or other insurance covering Executive, in the name of the Company and at the Company’s expense in any amount deemed appropriate by the Company. Executive shall assist the Company in
obtaining such insurance, including, without limitation, submitting to any required examinations and providing information and data required by insurance companies. 

(b) Indemnification. Executive will be provided with indemnification against third party claims related to his or her work for the
Company as required by Delaware law. The Company shall provide Executive with directors and officers liability insurance coverage at least as favorable as that which the Company may maintain from time to time for members of the Board and other
executive officers. 
 7. Arbitration. Any dispute, claim or controversy based on, arising out of or relating to Executive’s
employment or this Agreement shall be settled by final and binding arbitration in San Diego, California, before a single neutral arbitrator in accordance with the National Rules for the Resolution of Employment Disputes (the
“Rules”) of the American Arbitration Association, and judgment on the award rendered by the arbitrator may be entered in any court having jurisdiction. The Rules may be found online at www.adr.org. Arbitration may be
compelled pursuant to the California Arbitration Act (Code of Civil Procedure §§ 1280 et seq.). If the parties are unable to agree upon an arbitrator, one shall be appointed by the AAA in accordance with its Rules. Each party
shall pay the fees of its own attorneys, the expenses of its witnesses and all other expenses connected with presenting its case; however, Executive and the Company agree that, to the extent permitted by law, the arbitrator may, in his or her
discretion, award reasonable attorneys’ fees to the prevailing party. Other costs of the arbitration, including the cost of any record or transcripts of the arbitration, AAA’s administrative fees, the fee of the arbitrator, and all other
fees and costs, shall be borne by the Company. This Section 7 is intended to be the exclusive method for resolving any and all claims by the parties against each other for payment of damages under this Agreement or relating to Executive’s
employment; provided, however, that Executive shall retain the right to file administrative charges with or seek relief through any government agency of competent jurisdiction, and to participate in any government investigation,
including but not limited to (i) claims for workers’ compensation, state disability insurance or unemployment insurance; (ii) claims for unpaid wages or waiting time penalties 

  
 11 

 
brought before the California Division of Labor Standards Enforcement; provided, however, that any appeal from an award or 

from denial of an award of wages and/or waiting time penalties shall be arbitrated pursuant to the terms of this Agreement; and (iii) claims for
administrative relief from the United States Equal Employment Opportunity Commission and/or the California Department of Fair Employment and Housing (or any similar agency in any applicable jurisdiction other than California); provided,
further, that Executive shall not be entitled to obtain any monetary relief through such agencies other than workers’ compensation benefits or unemployment insurance benefits. This Agreement shall not limit either party’s right to
obtain any provisional remedy, including, without limitation, injunctive or similar relief, from any court of competent jurisdiction as may be necessary to protect their rights and interests pending the outcome of arbitration, including without
limitation injunctive relief, in any court of competent jurisdiction pursuant to California Code of Civil Procedure § 1281.8 or any similar statute of an applicable jurisdiction. Seeking any such relief shall not be deemed to be a waiver of
such party’s right to compel arbitration. Both Executive and the Company expressly waive their right to a jury trial. 
 8. General
Relationship. Executive shall be considered an employee of the Company within the meaning of all federal, state and local laws and regulations including, but not limited to, laws and regulations governing unemployment insurance, workers’
compensation, industrial accident, labor and taxes. 
 9. Miscellaneous. 

(a) Modification; Prior Claims. This Agreement and the Employee Proprietary Information and Inventions Agreement (and the other
documents referenced therein) set forth the entire understanding of the parties with respect to the subject matter hereof, and supersede all existing agreements between them concerning such subject matter. This Agreement may be amended or modified
only with the written consent of Executive and an authorized representative of the Company. No oral waiver, amendment or modification will be effective under any circumstances whatsoever. 

(b) Assignment; Assumption by Successor. The rights of the Company under this Agreement may, without the consent of Executive, be
assigned by the Company, in its sole and unfettered discretion, to any person, firm, corporation or other business entity which at any time, whether by purchase, merger or otherwise, directly or indirectly, acquires all or substantially all of the
assets or business of the Company. The Company will require any successor (whether direct or indirect, by purchase, merger or otherwise) to all or substantially all of the business or assets of the Company expressly to assume and to agree to perform
this Agreement in the same manner and to the same extent that the Company would be required to perform it if no such succession had taken place; provided, however, that no such assumption shall relieve the Company of its obligations
hereunder. As used in this Agreement, the “Company” shall mean the Company as hereinbefore defined and any successor to its business and/or assets as aforesaid which assumes and agrees to perform this Agreement by operation
of law or otherwise. 

  
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 (c) Survival. The covenants, agreements, representations and warranties contained in or
made in Sections 3(g), 4, 5, 6, 7 and 9 of this Agreement shall survive any Executive’s termination of employment. 
 (d)
Third-Party Beneficiaries. This Agreement does not create, and shall not be construed as creating, any rights enforceable by any person not a party to this Agreement. 

(e) Waiver. The failure of either party hereto at any time to enforce performance by the other party of any provision of this Agreement
shall in no way affect such party’s rights thereafter to enforce the same, nor shall the waiver by either party of any breach of any provision hereof be deemed to be a waiver by such party of any other breach of the same or any other provision
hereof. 
 (f) Section Headings. The headings of the several sections in this Agreement are inserted solely for the convenience of the
parties and are not a part of and are not intended to govern, limit or aid in the construction of any term or provision hereof. 
 (g)
Notices. Any notice required or permitted by this Agreement shall be in writing and shall be delivered as follows with notice deemed given as indicated: (i) by personal delivery when delivered personally; (ii) by overnight courier
upon written verification of receipt; (iii) by email, telecopy or facsimile transmission upon acknowledgment of receipt of electronic transmission; or (iv) by certified or registered mail, return receipt requested, upon verification of
receipt. Notice shall be sent to Executive at the address listed on the Company’s personnel records and to the Company at its principal place of business, or such other address as either party may specify in writing. 

(h) Severability. All Sections, clauses and covenants contained in this Agreement are severable, and in the event any of them shall be
held to be invalid by any court, this Agreement shall be interpreted as if such invalid Sections, clauses or covenants were not contained herein. 

(i) Governing Law and Venue. This Agreement is to be governed by and construed in accordance with the laws of the State of California
applicable to contracts made and to be performed wholly within such State, and without regard to the conflicts of laws principles thereof. Except as provided in Sections 5 and 7, any suit brought hereon shall be brought in the state or federal
courts sitting in San Diego, California, the parties hereto hereby waiving any claim or defense that such forum is not convenient or proper. Each party hereby agrees that any such court shall have in personam jurisdiction over it and consents to
service of process in any manner authorized by California law. 
 (j) Non-transferability of
Interest. None of the rights of Executive to receive any form of compensation payable pursuant to this Agreement shall be assignable or transferable except through a testamentary disposition or by the laws of descent and distribution upon the
death of Executive. Any attempted assignment, transfer, conveyance, or other disposition (other than as aforesaid) of any interest in the rights of Executive to receive any form of compensation to be made by the Company pursuant to this Agreement
shall be void. 

  
 13 

 (k) Gender. Where the context so requires, the use of the masculine gender shall include
the feminine and/or neuter genders and the singular shall include the plural, and vice versa, and the word “person” shall include any corporation, firm, partnership or other form of association. 

(l) Counterparts; Facsimile or .pdf Signatures. This Agreement may be executed in any number of counterparts, each of which when so
executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement. This Agreement may be executed and delivered by facsimile or by .pdf file and upon such delivery the facsimile or .pdf
signature will be deemed to have the same effect as if the original signature had been delivered to the other party. 
 (m)
Construction. The language in all parts of this Agreement shall in all cases be construed simply, according to its fair meaning, and not strictly for or against any of the parties hereto. Without limitation, there shall be no presumption
against any party on the ground that such party was responsible for drafting this Agreement or any part thereof. 
 (n) Withholding and
other Deductions. All compensation payable to Executive hereunder shall be subject to such deductions as the Company is from time to time required to make pursuant to law, governmental regulation or order. 

(o) Code Section 409A. 

(i) This Agreement is not intended to provide for any deferral of compensation subject to Section 409A of the Code, and, accordingly, the
severance payments payable under Sections 4(b)(ii) and 4(b)(iv) shall be paid no later than the later of: (A) the fifteenth (15th) day of the third month following Executive’s first taxable year in which such amounts are no longer
subject to a substantial risk of forfeiture, and (B) the fifteenth (15th) day of the third month following first taxable year of the Company in which such amounts are is no longer subject to substantial risk of forfeiture, as determined
in accordance with Code Section 409A and any Treasury Regulations and other guidance issued thereunder. To the extent applicable, this Agreement shall be interpreted in accordance with Code Section 409A and Department of
Treasury regulations and other interpretive guidance issued thereunder. Each series of installment payments made under this Agreement is hereby designated as a series of “separate payments” within the meaning of Section 409A of
the Code. For purposes of this Agreement, all references to Executive’s “termination of employment” shall mean Executive’s Separation from Service. 

(ii) If Executive is a “specified employee” (as defined in Section 409A of the Code), as determined by the Company in
accordance with Section 409A of the Code, on the date of Executive’s Separation from Service, to the extent that the payments or benefits under this Agreement are subject to Section 409A of the Code and the delayed payment or
distribution of all or any portion of such amounts to which Executive is entitled under this Agreement is required in order to avoid a prohibited distribution under Section 409A(a)(2)(B)(i) of the Code, then such portion deferred pursuant to
this Section 9(o)(ii) shall be paid or distributed to Executive in a lump sum on the earlier of (A) the date that is six (6)-months following Executive’s Separation from Service, (B) the date of Executive’s death or
(C) the earliest date as 

  
 14 

 
is permitted under Section 409A of the Code. Any remaining payments due under the Agreement shall be paid as otherwise provided herein. 

(iii) To the extent applicable, this Agreement shall be interpreted in accordance with the applicable exemptions from Section 409A of the
Code. If Executive and the Company determine that any payments or benefits payable under this Agreement intended to comply with Sections 409A(a)(2), (3) and (4) of the Code do not comply with Section 409A of the Code, Executive and the
Company agree to amend this Agreement, or take such other actions as Executive and the Company deem reasonably necessary or appropriate, to comply with the requirements of Section 409A of the Code and the Treasury Regulations thereunder (and
any applicable transition relief) while preserving the economic agreement of the parties. To the extent that any provision in this Agreement is ambiguous as to its compliance with Section 409A of the Code, the provision shall be read in such a
manner that no payments payable under this Agreement shall be subject to an “additional tax” as defined in Section 409A(a)(1)(B) of the Code. 

(iv) Any reimbursement of expenses or in-kind benefits payable under this Agreement shall be made in
accordance with Treasury Regulation Section 1.409A-3(i)(1)(iv) and shall be paid on or before the last day of Executive’s taxable year following the taxable year in which Executive incurred the
expenses. The amount of expenses reimbursed or in-kind benefits payable during any taxable year of Executive’s shall not affect the amount eligible for reimbursement or
in-kind benefits payable in any other taxable year of Executive’s, and Executive’s right to reimbursement for such amounts shall not be subject to liquidation or exchange for any other benefit. 

[SIGNATURE PAGE FOLLOWS] 

  
 15 

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

			
	CRINETICS PHARMACEUTICALS, INC.
		
	By:	 	/s/ R. Scott Struthers
	Name:	 	R. Scott Struthers
	Title:	 	Chief Executive Officer
	
	EXECUTIVE
	
	 /s/ Alan Krasner

	Alan Krasner, M.D.

 SIGNATURE PAGE TO EMPLOYMENT AGREEMENT 

 EXHIBIT A 

GENERAL RELEASE OF CLAIMS 

[The language in this Release may change based on legal developments and evolving best practices; this form is provided as an example of
what will be included in the final Release document.] 
 This General Release of Claims (“Release”) is entered
into as of this          day of             ,         , between Alan Krasner, M.D.
(“Executive”), and Crinetics Pharmaceuticals, Inc. (the “Company”) (collectively referred to herein as the “Parties”). 

WHEREAS, Executive and the Company are parties to that certain Employment Agreement dated as of June 15, 2018 (the
“Agreement”); 
 WHEREAS, the Parties agree that Executive is entitled to certain severance benefits under the
Agreement, subject to Executive’s execution of this Release; and 
 WHEREAS, the Company and Executive now wish to fully and finally to
resolve all matters between them. 
 NOW, THEREFORE, in consideration of, and subject to, the severance benefits payable to Executive
pursuant to the Agreement, the adequacy of which is hereby acknowledged by Executive, and which Executive acknowledges that he or she would not otherwise be entitled to receive, Executive and the Company hereby agree as follows: 

1. General Release of Claims by Executive. 

(a) Executive, on behalf of himself or herself and his or her executors, heirs, administrators, representatives and assigns, hereby agrees to
release and forever discharge the Company and all predecessors, successors and their respective parent corporations, affiliates, related, and/or subsidiary entities, and all of their past and present investors, directors, shareholders, officers,
general or limited partners, employees, attorneys, agents and representatives, and the employee benefit plans in which Executive is or has been a participant by virtue of his or her employment with or service to the Company (collectively, the
“Company Releasees”), from any and all claims, debts, demands, accounts, judgments, rights, causes of action, equitable relief, damages, costs, charges, complaints, obligations, promises, agreements, controversies, suits,
expenses, compensation, responsibility and liability of every kind and character whatsoever (including attorneys’ fees and costs), whether in law or equity, known or unknown, asserted or unasserted, suspected or unsuspected (collectively,
“Claims”), which Executive has or may have had against such Company Releasees based on any events or circumstances arising or occurring on or prior to the date hereof or on or prior to the date hereof, arising directly or
indirectly out of, relating to, or in any other way involving in any manner whatsoever Executive’s employment by or service to the Company or the termination thereof, including any and all claims arising under federal, state, or local laws
relating to employment, including without limitation claims of wrongful discharge, breach of express or implied contract, 

  
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fraud, misrepresentation, defamation, or liability in tort, and claims of any kind that may be brought in any court or administrative agency including, without limitation, claims under Title VII
of the Civil Rights Act of 1964, as amended, 42 U.S.C. Section 2000, et seq.; the Americans with Disabilities Act, as amended, 42 U.S.C. § 12101 et seq.; the Rehabilitation Act of 1973, as amended,
29 U.S.C. § 701 et seq.; the Civil Rights Act of 1866, and the Civil Rights Act of 1991; 42 U.S.C. Section 1981, et seq.; the Age Discrimination in Employment Act, as amended, 29 U.S.C.
Section 621, et seq. (the “ADEA”); the Equal Pay Act, as amended, 29 U.S.C. Section 206(d); regulations of the Office of Federal Contract Compliance, 41 C.F.R. Section 60, et seq.;
the Family and Medical Leave Act, as amended, 29 U.S.C. § 2601 et seq.; the Fair Labor Standards Act of 1938, as amended, 29 U.S.C. § 201 et seq.; the Employee Retirement Income Security
Act, as amended, 29 U.S.C. § 1001 et seq.; and the California Fair Employment and Housing Act, California Government Code Section 12940, et seq. 

Notwithstanding the generality of the foregoing, Executive does not release the following claims: 

(i) Claims for unemployment compensation or any state disability insurance benefits pursuant to the terms of applicable state
law; 
 (ii) Claims for workers’ compensation insurance benefits under the terms of any worker’s compensation
insurance policy or fund of the Company; 
 (iii) Claims pursuant to the terms and conditions of the federal law known as
COBRA; 
 (iv) Claims for indemnity under the bylaws of the Company, as provided for by California law or under any
applicable insurance policy with respect to Executive’s liability as an employee, director or officer of the Company; 

(v) Claims based on any right Executive may have to enforce the Company’s executory obligations under the Agreement; 

(vi) Executive’s right to bring to the attention of the Equal Employment Opportunity Commission or the California
Department of Fair Employment and Housing or any other federal, state or local government agency claims of discrimination, or from participating in an investigation or proceeding conducted by the Equal Employment Opportunity Commission or any other
federal, state or local government agency; provided, however, that Executive does release his right to secure any damages for alleged discriminatory treatment; 

(vii) Claims Executive may have to vested or earned compensation and benefits; and 

(viii) Executive’s right to communicate or cooperate with any governmental agency. 

  
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 (b) EXECUTIVE ACKNOWLEDGES THAT HE OR SHE HAS BEEN ADVISED OF AND IS FAMILIAR WITH THE PROVISIONS
OF CALIFORNIA CIVIL CODE SECTION 1542, WHICH PROVIDES AS FOLLOWS: 
 “A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR
DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH, IF KNOWN BY HIM OR HER, MUST HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR.” 

BEING AWARE OF SAID CODE SECTION, EXECUTIVE HEREBY EXPRESSLY WAIVES ANY RIGHTS HE OR SHE MAY HAVE THEREUNDER, AS WELL AS UNDER ANY OTHER STATUTES OR COMMON
LAW PRINCIPLES OF SIMILAR EFFECT. 
 [Note: Clauses (c), (d) and (e) apply only if Executive is age 40 or older at time of termination]

 (c) Executive acknowledges that this Release was presented to him or her on the date indicated above and that Executive is
entitled to have [twenty-one (21)][forty-five (45)] days’ time in which to consider it. Executive further acknowledges that the Company has advised him or her that he or she is waiving his or her rights
under the ADEA, and that Executive should consult with an attorney of his or her choice before signing this Release, and Executive has had sufficient time to consider the terms of this Release. Executive represents and acknowledges that if Executive
executes this Release before [twenty-one (21)][forty-five (45)] days have elapsed, Executive does so knowingly, voluntarily, and upon the advice and with the approval of Executive’s legal counsel (if
any), and that Executive voluntarily waives any remaining consideration period. 
 (d) Executive understands that after executing this
Release, Executive has the right to revoke it within seven (7) days after his or her execution of it. Executive understands that this Release will not become effective and enforceable unless the seven (7) day revocation period passes and
Executive does not revoke the Release in writing. Executive understands that this Release may not be revoked after the seven (7) day revocation period has passed. Executive also understands that any revocation of this Release must be made in
writing and delivered to the Company at its principal place of business within the seven (7) day period. 
 (e) Executive understands
that this Release shall become effective, irrevocable, and binding upon Executive on the eighth (8th) day after his or her execution of it, so long as Executive has not revoked it within the time
period and in the manner specified in clause (d) above. 
 (f) Executive further understands that Executive will not be given any
severance benefits under the Agreement unless this Release is effective on or before the date that is fifty-five (55) days following the date of Executive’s termination of employment. 

2. No Assignment. Executive represents and warrants to the Company Releasees that there has been no assignment or other transfer of any
interest in any Claim that Executive may 

  
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have against the Company Releasees. Executive agrees to indemnify and hold harmless the Company Releasees from any liability, claims, demands, damages, costs, expenses and attorneys’ fees
incurred as a result of any such assignment or transfer from Executive. 
 3. Severability. In the event any provision of this Release
is found to be unenforceable by an arbitrator or court of competent jurisdiction, such provision shall be deemed modified to the extent necessary to allow enforceability of the provision as so limited, it being intended that the parties shall
receive the benefit contemplated herein to the fullest extent permitted by law. If a deemed modification is not satisfactory in the judgment of such arbitrator or court, the unenforceable provision shall be deemed deleted, and the validity and
enforceability of the remaining provisions shall not be affected thereby. 
 4. Interpretation; Construction. The headings set forth
in this Release are for convenience only and shall not be used in interpreting this Agreement. This Release has been drafted by legal counsel representing the Company, but Executive has participated in the negotiation of its terms. Furthermore,
Executive acknowledges that Executive has had an opportunity to review and revise the Release and have it reviewed by legal counsel, if desired, and, therefore, the normal rule of construction to the effect that any ambiguities are to be resolved
against the drafting party shall not be employed in the interpretation of this Release. Either party’s failure to enforce any provision of this Release shall not in any way be construed as a waiver of any such provision, or prevent that party
thereafter from enforcing each and every other provision of this Release. 
 5. Governing Law and Venue. This Release will be governed
by and construed in accordance with the laws of the United States of America and the State of California applicable to contracts made and to be performed wholly within such State, and without regard to the conflicts of laws principles thereof. Any
suit brought hereon shall be brought in the state or federal courts sitting in San Diego County, California, the Parties hereby waiving any claim or defense that such forum is not convenient or proper. Each party hereby agrees that any such court
shall have in personam jurisdiction over it and consents to service of process in any manner authorized by California law. 
 6. Entire
Agreement. This Release and the Agreement constitute the entire agreement of the Parties in respect of the subject matter contained herein and therein and supersede all prior or simultaneous representations, discussions, negotiations and
agreements, whether written or oral. This Release may be amended or modified only with the written consent of Executive and an authorized representative of the Company. No oral waiver, amendment or modification will be effective under any
circumstances whatsoever. 
 7. Counterparts. This Release may be executed in multiple counterparts, each of which shall be deemed to
be an original but all of which together shall constitute one and the same instrument. 
 (Signature Page Follows) 

  
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 IN WITNESS WHEREOF, and intending to be legally bound, the Parties have executed the foregoing
Release as of the date first written above. 
  

							
	EXECUTIVE	 		 	CRINETICS PHARMACEUTICALS, INC.
				
	   
	 		 	By:	 	                    
	Print Name: Alan Krasner, M.D.	 		 	Print Name:
		 		 	Title:

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