Document:

2009 Equity Incentive Award Plan

 Exhibit 10.8 
 PROMETHEUS LABORATORIES INC. 
 2009 EQUITY INCENTIVE AWARD PLAN 
 ARTICLE 1 
 PURPOSE 

The purpose of the Prometheus Laboratories Inc. 2009 Equity Incentive Award Plan (the “Plan”) is to promote the success and enhance
the value of Prometheus Laboratories Inc., a California corporation (the “Company”), by linking the personal interests of the members of the Board, Employees, and Consultants to those of Company shareholders and by providing such
individuals with an incentive for performance to generate returns to Company shareholders. The Plan is further intended to provide flexibility to the Company in its ability to motivate, attract, and retain the services of members of the Board,
Employees, and Consultants upon whose judgment, interest, and special effort the successful conduct of the Company’s operation is largely dependent. 
 ARTICLE 2 
 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. 
 2.1 “Administrator” means the entity or person
that conducts the general administration of the Plan as provided herein. With reference to the duties of the Committee under the Plan which have been delegated to one or more persons pursuant to Section 12.5, or as to which the Board has
assumed, the term “Administrator” shall refer to such person(s) unless the Committee or the Board has revoked such delegation or the Board has terminated the assumption of such duties. 
 2.2 “Award” means an Option, a Restricted Stock award, a Stock Appreciation Right award, a Dividend Equivalents award, a Stock Payment
award, a Restricted Stock Unit award or a Performance Bonus Award granted to a Participant pursuant to the Plan. 
 2.3 “Award
Agreement” means any written notice, agreement, terms and conditions, contract, or other instrument or document evidencing an Award, including through electronic medium, which shall contain such terms and conditions with respect to an Award
as the Administrator shall determine consistent with the Plan. 
 2.4 “Board” means the Board of Directors of the Company.

 2.5 “Change in Control” means and includes each of the following: 
 (a) A transaction or series of transactions (other than an offering of Stock to the general public through a registration statement filed with the
Securities and Exchange 

  

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Commission) 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
Section 2.5(a) or Section 2.5(c)) whose election by the Board or nomination for election by the Company’s shareholders 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 Section 2.4(c)(ii) as beneficially
owning 50% or more of 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 discretion, to determine conclusively whether a Change in Control
of the Company has occurred pursuant to the above definition, and the date of the occurrence of such Change in Control and any incidental matters relating thereto. 
 Notwithstanding the foregoing, a transaction shall not constitute a “Change in Control” if: (i) its sole purpose is to change the state of the Company’s incorporation; (ii) its sole
purpose 

  

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is to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately
before such transaction; (iii) it constitutes the Company’s initial public offering of its securities; or (iv) it is a transaction effected primarily for the purpose of financing the Company with cash (as determined by the
Administrator in its discretion and without regard to whether such transaction is effectuated by a merger, equity financing or otherwise). 
 In addition, if a Change in Control constitutes a payment event with respect to any Award which provides for the deferral of compensation and is subject to Section 409A of the Code, the transaction or event described in subsection (a),
(b), (c) or (d) with respect to such Award must also constitute a “change in control event,” as defined in Treasury Regulation §1.409A-3(i)(5) to the extent required by Section 409A. 
 2.6 “Code” means the Internal Revenue Code of 1986, as amended from time to time, and the regulations issued thereunder. 
 2.7 “Committee” means the Compensation Committee of the Board, or another committee or subcommittee of the Board, appointed as provided
in Article 12. 
 2.8 “Consultant” means any consultant or adviser engaged to provide services to the Company or any Parent
or Subsidiary that qualifies as a consultant under the applicable rules of the Securities and Exchange Commission for registration of shares on a Form S-8 Registration Statement. 
 2.9 “Constructive Termination” means, with respect to a Participant, the occurrence of any of the following events or conditions:
(a) (i) a change in the Participant’s status, title, position or responsibilities (including reporting responsibilities) which represents an adverse change from the Participant’s status, title, position or responsibilities as in
effect at any time within ninety (90) days preceding the date of a Change in Control or at any time thereafter; (ii) the assignment to the Participant of any duties or responsibilities which are inconsistent with the Participant’s
status, title, position or responsibilities as in effect at any time within ninety (90) days preceding the date of a Change in Control or at any time thereafter; or (iii) any removal of the Participant from or failure to reappoint or
reelect the Participant to any of such offices or positions, except in connection with the termination of the Participant’s employment or service by the Company or any Parent or Subsidiary for Misconduct, as a result of the Participant’s
Disability or death or by the Participant other than as a result of a Constructive Termination; (b) a reduction in the Participant’s annual base compensation; or (c) a requirement by the Company or any Parent or Subsidiary that the
Participant relocate to any place outside a fifty (50) mile radius of the Participant’s then-current work site, excluding in any event reasonably required travel on the business of the Company or its affiliates. 
 2.10 “Covered Employee” means an Employee who is, or could be, a “covered employee” within the meaning of Section 162(m)
of the Code. 
 2.11 “Director” means a member of the Board, as constituted from time to time. 
 2.12 “Disability” means “disability,” as such term is defined in Section 22(e)(3) of the Code. 
  

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 2.13 “Dividend Equivalent” means a right granted to a Participant pursuant to
Section 8.1 to receive the equivalent value (in cash or Stock) of dividends paid on Stock. 
 2.14 “DRO” means a
domestic relations order as defined by the Code or Title I of the Employee Retirement Income Security Act of 1974, as amended from time to time, or the rules thereunder. 
 2.15 “Effective Date” has the meaning set forth in Section 13.1. 
 2.16
“Eligible Individual” means any person who is an Employee, a Consultant or a Director, as determined by the Administrator. 
 2.17 “Employee” means any officer or other employee (as defined in accordance with Section 3401(c) of the Code) of the Company or of any Parent or Subsidiary. 
 2.18 “Equity Restructuring” shall mean a nonreciprocal transaction between the company and its shareholders, such as a stock dividend,
stock split, spin-off, rights offering or recapitalization through a large, nonrecurring cash dividend, that affects the number or kind of shares of Stock (or other securities of the Company) or the share price of Stock (or other securities) and
causes a change in the per share value of the Stock underlying outstanding Awards. 
 2.19 “Exchange Act” means the
Securities Exchange Act of 1934, as amended from time to time. 
 2.20 “Expiration Date” has the meaning set forth in
Section 13.2. 
 2.21 “Fair Market Value” means, as of any given date, the fair market value of a share of Stock
determined as follows: 
 (a) If the Stock is listed on any established stock exchange (such as the New York Stock Exchange, the NASDAQ
Global Market and the NASDAQ Global Select Market) or national market system, its Fair Market Value shall be the closing sales price for a share of Stock as quoted on such exchange or system for such date or, if there is no closing sales price for a
share of Stock on the date in question, the closing sales price for a share of Stock on the last preceding date for which such quotation exists, as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

 (b) If the Stock is not listed on an established stock exchange or national market system, but the Stock is regularly quoted by a
recognized securities dealer, its Fair Market Value shall be the mean of the high bid and low asked prices for such date or, if there are no high bid and low asked prices for a share of Stock on such date, the high bid and low asked prices for a
share of Stock on the last preceding date for which such information exists, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; or 
 (c) If the Stock is neither listed on an established stock exchange or a national market system nor regularly quoted by a recognized securities dealer,
its Fair Market Value shall be established by the Administrator in good faith. 
  

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 2.22 “Incentive Stock Option” means an Option that is intended to be an incentive stock
option and meets the requirements of Section 422 of the Code or any successor provision thereto. 
 2.23 “Independent
Director” means a Director of the Company who is not an Employee. 
 2.24 “Misconduct” means the occurrence of any
of, but not limited to, the following: (a) conviction of the Participant of any felony or any crime involving fraud or dishonesty; (b) the Participant’s participation (whether by affirmative act or omission) in a fraud, act or
dishonesty or other act of misconduct against the Company and/or any Parent or Subsidiary; (c) conduct by the Participant which, based upon a good faith and reasonable factual investigation by the Company (or, if the Participant is an executive
officer, by the Board), demonstrates the Participant’s unfitness to serve; (d) the Participant’s violation of any statutory or fiduciary duty, or duty of loyalty owed to the Company and/or any Parent or Subsidiary; (e) the
Participant’s violation of state or federal law in connection with the Participant’s performance of his or her job which has an adverse effect on the Company and/or any Parent or Subsidiary; and (f) the Participant’s violation of
Company policy which has a material adverse effect on the Company and/or any Parent or Subsidiary. Notwithstanding the foregoing, the Participant’s Disability shall not constitute Misconduct as set forth herein. The determination that a
termination is for Misconduct shall be by the Administrator it its sole and exclusive judgment and discretion. Notwithstanding the foregoing, if the term of concept of “Misconduct” has been defined in an agreement between a Participant and
the Company or any successor or Parent or Subsidiary thereof, then “Misconduct” shall have the definition set forth in such agreement. 
 2.25 “Non-Employee Director” means a Director of the Company who qualifies as a “Non-Employee Director” as defined in Rule 16b-3(b)(3) of the Exchange Act, or any successor definition. 
 2.26 “Non-Qualified Stock Option” means an Option that is not intended to be or otherwise does not qualify as an Incentive Stock Option.

 2.27 “Option” means a right granted to a Participant pursuant to Article 5 of the Plan to purchase a specified number of
shares of Stock at a specified price during specified time periods. An Option may be either an Incentive Stock Option or a Non-Qualified Stock Option. 
 2.28 “Parent” means any “parent corporation”, as defined in Section 424(e) of the Code and any applicable regulations promulgated thereunder, of the Company or any other entity which
beneficially owns, directly or indirectly, a majority of the outstanding voting stock or voting power of the Company. 
 2.29
“Participant” means any Eligible Individual who, as a member of the Board, Consultant or Employee, has been granted an Award pursuant to the Plan. 
 2.30 “Performance-Based Award” means an Award granted to selected Covered Employees pursuant to Articles 6 and 8, but which is subject to the terms and conditions set forth in Article 9. 

 

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 2.31 “Performance Bonus Award” has the meaning set forth in Section 8.4.

 2.32 “Performance Criteria” means the criteria (and adjustments) that the Administrator selects for purposes of
establishing the Performance Goal or Performance Goals for a Participant for a Performance Period, determined as follows: 
 (a) The
Performance Criteria that will be used to establish Performance Goals are limited to the following: operating or other costs and expenses, improvements in expense levels, cash flow (including, but not limited to, operating cash flow and free cash
flow), return on net assets, return on shareholders’ equity, return on sales, gross or net profit margin, working capital, net earnings (either before or after interest, taxes, depreciation and amortization), sales or revenue, net income
(either before or after taxes), operating earnings, earnings per share of Stock, price per share of Stock, capital raised in financing transactions or other financing milestones, market recognition (including but not limited to awards and analyst
ratings) and implementation, completion or attainment of objectively-determinable objectives relating to research, development, regulatory, commercial or strategic milestones or development cash flow (including, but not limited to, operating cash
flow and free cash flow), any of which may be measured either in absolute terms or as compared to any incremental increase or as compared to results of a peer group. To the extent an Award is intended to be Qualified Performance-Based Compensation,
the Administrator shall, within the time prescribed by Section 162(m) of the Code, define in an objective fashion the manner of calculating the Performance Criteria it selects to use for such Performance Period for such Participant. 

(b) The Administrator may, in its sole discretion, provide that one or more objectively determinable adjustments shall be made to one or more of the
Performance Goals. Such adjustments may include one or more of the following: (i) items related to a change in accounting principle; (ii) items relating to financing activities; (iii) expenses for restructuring or productivity
initiatives; (iv) other non-operating items; (v) items related to acquisitions; (vi) items attributable to the business operations of any entity acquired by the Company during the Performance Period; (vii) items related to the
disposal of a business or segment of a business; (viii) items related to discontinued operations that do not qualify as a segment of a business under United States generally accepted accounting principles (“GAAP”);
(ix) items attributable to any stock dividend, stock split, combination or exchange of shares occurring during the Performance Period; (x) any other items of significant income or expense which are determined to be appropriate adjustments;
(xi) items relating to unusual or extraordinary corporate transactions, events or developments, (xii) items related to amortization of acquired intangible assets; (xiii) items that are outside the scope of the Company’s core,
on-going business activities; (xiv) items relating to any other unusual or nonrecurring events or changes in applicable laws, accounting principles or business conditions; (xv) items relating to unusual or extraordinary corporate
transactions, events or developments; (xvi) non-cash charges, including those relating to share-based awards; or (xvii) other non-operating items. For all Awards intended to qualify as Qualified Performance-Based Compensation, such
determinations shall be made within the time prescribed by, and otherwise in compliance with, Section 162(m) of the Code. 
 (c) To the
extent an Award is intended to be Qualified Performance-Based Compensation, the Administrator shall, within the time prescribed by Section 162(m) of the Code, define in an objective fashion the manner of calculating the Performance Criteria it
selects to use for such Performance Period for such Participant. 
  

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 2.33 “Performance Goals” means, for a Performance Period, the goals established in
writing by the Administrator for the Performance Period based upon one or more Performance Criteria. Depending on the Performance Criteria used to establish such Performance Goals, the Performance Goals may be expressed in terms of overall Company
performance or the performance of a Subsidiary, division or other operational unit, or an individual. To the extent an Award is intended to be Qualified Performance-Based Compensation, the Administrator, in its discretion, may, within the time
prescribed by Section 162(m) of the Code, adjust or modify the calculation of Performance Goals for such Performance Period in order to prevent the dilution or enlargement of the rights of Participants (a) in the event of, or in
anticipation of, any unusual or extraordinary corporate item, transaction, event, or development, or (b) in recognition of, or in anticipation of, any other unusual or nonrecurring events affecting the Company, or the financial statements of
the Company, or in response to, or in anticipation of, changes in applicable laws, regulations, accounting principles, or business conditions. 
 2.34 “Performance Period” means the one or more periods of time, which may be of varying and overlapping durations, as the Administrator may select, over which the attainment of one or more Performance Goals will be
measured for the purpose of determining a Participant’s right to, and the payment of, a Performance-Based Award. 
 2.35
“Plan” means this Prometheus Laboratories Inc. 2009 Equity Incentive Award Plan, as it may be amended from time to time. 
 2.36 “Public Trading Date” means the first date upon which the Company is subject to the reporting requirements of Section 13 or 15(d)(2) of the Exchange Act. 
 2.37 “Qualified Performance-Based Compensation” means any compensation that is intended to qualify as “qualified performance-based
compensation” as described in Section 162(m)(4)(C) of the Code. 
 2.38 “Restricted Stock” means Stock awarded to
a Participant pursuant to Article 6 that is subject to certain restrictions and may be subject to risk of forfeiture or repurchase. 
 2.39
“Restricted Stock Unit” means a right to receive a share of Stock during specified time periods granted pursuant to Section 8.3. 
 2.40 “Securities Act” means the Securities Act of 1933, as amended. 
 2.41
“Stock” means the common stock of the Company, par value $0.001 per share, and such other securities of the Company that may be substituted for Stock pursuant to Article 11. 
 2.42 “Stock Appreciation Right” means a stock appreciation right granted pursuant to Article 7. 
  

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 2.43 “Stock Payment” means (a) a payment in the form of shares of Stock, or
(b) an option or other right to purchase shares of Stock, as part of any bonus, deferred compensation or other arrangement, made in lieu of all or any portion of the compensation, granted pursuant to Section 8.2. 
 2.44 “Subsidiary” means any “subsidiary corporation” as defined in Section 424(f) of the Code and any applicable
regulations promulgated thereunder of the Company or any other entity of which a majority of the outstanding voting stock or voting power is beneficially owned directly or indirectly by the Company. 
 2.45 “Successor Entity” has the meaning set forth in Section 2.5. 
 2.46 “Termination of Consultancy” means the time when the engagement of a Participant as a Consultant to the Company or to a Parent or
Subsidiary is terminated for any reason, with or without cause, including, but not by way of limitation, by resignation, discharge, death or retirement, but excluding: (a) terminations where there is a simultaneous employment or continuing
employment of the Participant by the Company or any Parent or Subsidiary, and (b) terminations where there is a simultaneous reestablishment of a consulting relationship or continuing consulting relationship between the Participant and the
Company or any Parent or Subsidiary. The Administrator, in its absolute discretion, shall determine the effect of all matters and questions relating to Termination of Consultancy, including, but not by way of limitation, the question of whether a
particular leave of absence constitutes a Termination of Consultancy. Notwithstanding any other provision of the Plan, the Company or any Parent or Subsidiary has an absolute and unrestricted right to terminate a Consultant’s service at any
time for any reason whatsoever, with or without cause, except to the extent expressly provided otherwise in writing. 
 2.47
“Termination of Directorship” means the time when a Participant, if he or she is or becomes an Independent Director, ceases to be a Director for any reason, including, but not by way of limitation, a termination by resignation,
failure to be elected, death or retirement. The Board, in its sole and absolute discretion, shall determine the effect of all matters and questions relating to Termination of Directorship with respect to Independent Directors. 
 2.48 “Termination of Employment” means the time when the employee-employer relationship between a Participant and the Company or any
Parent or Subsidiary is terminated for any reason, with or without cause, including, but not by way of limitation, a termination by resignation, discharge, death, Disability or retirement; but excluding: (a) terminations where there is a
simultaneous reemployment or continuing employment of the Participant by the Company or any Parent or Subsidiary, and (b) terminations where there is a simultaneous establishment of a consulting relationship or continuing consulting
relationship between the Participant and the Company or any Parent or Subsidiary. The Administrator, in its absolute discretion, shall determine the effect of all matters and questions relating to Termination of Employment, including, but not by way
of limitation, the question of whether a particular leave of absence constitutes a Termination of Employment. 
 2.49 “Termination of
Service” shall mean the last to occur of a Participant’s Termination of Consultancy, Termination of Directorship or Termination of Employment, as applicable. A Participant shall not be deemed to have a Termination of Service merely
because 

  

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of a change in the capacity in which the Participant renders service to the Company or any Parent or Subsidiary (i.e., a Participant who is an Employee
becomes a Consultant) or a change in the entity for which the Participant renders such service (i.e., an Employee of the Company becomes an Employee of a Subsidiary), unless following such change in capacity or service the Participant is no longer
serving as an Employee, Independent Director or Consultant of the Company or any Parent or Subsidiary. 
 ARTICLE 3 
 SHARES SUBJECT TO THE PLAN 
 3.1
Number of Shares. 
 (a) Subject to Article 11 and Section 3.1(b), the aggregate number of shares of Stock which may be issued or
transferred pursuant to Awards under the Plan shall be the sum of: (i) 2,400,000 shares of Stock; plus (ii) the number of shares of Stock remaining available for issuance and not subject to awards granted under the 2000 Equity Incentive
Plan of Prometheus Laboratories Inc. or the 1997 Equity Incentive Plan of Prometheus Laboratories Inc. (together, the “Existing Plans”) as of the Effective Date; plus (iii) with respect to awards granted under the Existing
Plans on or before the Effective Date that expire or are canceled without having been exercised in full or shares of Stock that are forfeited or repurchased pursuant to the terms of awards granted under the Existing Plans, the number of shares of
Stock subject to each such award as to which such award was not exercised prior to its expiration or cancellation or which are forfeited or repurchased by the Company. The aggregate number of shares of Stock authorized for issuance under the
Existing Plans was 13,430,000 shares of Stock and, accordingly, the total number of shares of Stock under clauses (ii) and (iii) in the preceding sentence shall not exceed 13,430,000 shares of Stock. In addition, subject to Article 11,
commencing on the first January 1 occurring following the Public Trading Date, and on each January 1 thereafter during the term of the Plan, the number of shares of Stock which shall be made available for sale under the Plan shall be
increased by that number of shares of Stock equal to the least of: (i) 2% of the Company’s outstanding shares of Stock on the applicable January 1; (ii) 1,500,000 shares; and (iii) a lesser number of shares of Stock as
determined by the Board. Notwithstanding anything in this Section 3.1(a) to the contrary, the number of shares of Stock that may be issued or transferred pursuant to Awards under the Plan shall not exceed an aggregate of 30,830,000 shares of
Stock, subject to Article 11. In order that the applicable regulations under the Code relating to Incentive Stock Options be satisfied, the maximum number of shares of Stock that may be delivered upon exercise of Incentive Stock Options shall be the
number specified in the preceding sentence, and, if necessary to satisfy such regulations, such maximum limit shall apply to the number of shares of Stock that may be delivered in connection with each other type of Award under the Plan (applicable
separately to each type of Award). 
 (b) To the extent that an Award terminates, expires, or lapses for any reason, or an Award is settled
in cash without the delivery of shares of Stock to the Participant, any shares of Stock subject to the Award shall again be available for the grant of an Award pursuant to the Plan. Additionally, any shares of Stock tendered or withheld to satisfy
the grant or exercise price or tax withholding obligation pursuant to any Award shall again be available for 

  

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the grant of an Award pursuant to the Plan. If any shares of Stock are forfeited by a Participant or repurchased by the Company pursuant to Article 6 hereof,
such shares shall again be available for the grant of an Award pursuant to the Plan. To the extent permitted by applicable law or any exchange rule, shares of Stock issued in assumption of, or in substitution for, any outstanding awards of any
entity acquired in any form of combination by the Company or any Parent or Subsidiary shall not be counted against shares of Stock available for grant pursuant to the Plan. The payment of Dividend Equivalents in cash in conjunction with any
outstanding Awards shall not be counted against the shares of Stock available for issuance under the Plan. 
 (c) Notwithstanding the
provisions of this Section 3.1, no shares of Stock may again be optioned, granted or awarded if such action would cause an Incentive Stock Option to fail to qualify as an incentive stock option under Section 422 of the Code. 
 3.2 Stock Distributed. Any shares of Stock distributed pursuant to an Award may consist, in whole or in part, of authorized and unissued Stock,
treasury Stock or, on and after the Public Trading Date, Stock purchased on the open market. 
 3.3 Limitation on Number of Shares and
Values Subject to Awards. Notwithstanding any provision in the Plan to the contrary, and subject to Article 11, the maximum aggregate number of shares of Stock with respect to one or more Awards that may be granted to any one Participant during
any calendar year shall be 2,400,000 and the maximum aggregate amount that may be paid in cash during any calendar year with respect to one or more Awards payable in cash granted to any Participant (including, without limitation, any Performance
Bonus Award) shall be $2,000,000; provided, however, that the foregoing limitations shall not apply prior to the Public Trading Date and, following the Public Trading Date, the foregoing limitations shall not apply until the earliest of:
(a) the first material modification of the Plan (including any increase in the number of shares of Stock reserved for issuance under the Plan in accordance with Section 3.1); (b) the issuance of all of the shares of Stock reserved for
issuance under the Plan; (c) the expiration of the Plan; (d) the first meeting of shareholders at which members of the Board are to be elected that occurs after the close of the third calendar year following the calendar year in which
occurred the first registration of an equity security of the Company under Section 12 of the Exchange Act; or (e) such other date required by Section 162(m) of the Code and the rules and regulations promulgated thereunder. To the
extent required by Section 162(m) of the Code, shares of Stock subject to Awards which are canceled shall continue to be counted against the foregoing limit. 
 ARTICLE 4 
 ELIGIBILITY AND PARTICIPATION 
 4.1 Eligibility. Each Eligible Individual shall be eligible to be granted one or more Awards pursuant to the Plan. 
 4.2 Participation. Subject to the provisions of the Plan, the Administrator may, from time to time, select from among all Eligible Individuals,
those to whom Awards shall be granted and shall determine the nature and amount of each Award. No Eligible Individual shall have any right to be granted an Award pursuant to this Plan. 
  

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 4.3 Foreign Participants. In order to assure the viability of Awards granted to Participants
employed in foreign countries, the Administrator may provide for such special terms as it may consider necessary or appropriate to accommodate differences in local law, tax policy, or custom. Moreover, the Administrator may approve such supplements
to, or amendments, restatements, or alternative versions of, the Plan as it may consider necessary or appropriate for such purposes without thereby affecting the terms of the Plan as in effect for any other purpose; provided, however, that no
such supplements, amendments, restatements, or alternative versions shall increase the limitations on the number of shares of Stock (a) issued or transferred pursuant to Awards under the Plan, as detailed in Section 3.1, and
(b) issued or transferred pursuant to Awards granted to any one Participant during any calendar year, as detailed in Section 3.3 of the Plan. 
 ARTICLE 5 
 STOCK OPTIONS 
 5.1 General. The Administrator is authorized to grant Options to Eligible Individuals on the following terms and conditions: 
 (a) Exercise Price. The exercise price per share of Stock subject to an Option shall be determined by the Administrator and set forth in the Award
Agreement; provided that, subject to Section 5.2(d), the exercise price for any Option shall not be less than par value of a share of Stock on the date of grant. 
 (b) Time and Conditions of Exercise. The Administrator shall determine the time or times at which an Option may be exercised in whole or in part.
The Administrator shall also determine the performance or other conditions, if any, that must be satisfied before all or part of an Option may be exercised, which shall include full payment of the exercise price and applicable withholding taxes to
the Company for the shares with respect to which the Option, or portion thereof, is exercised, in a manner permitted by Sections 10.7 and 10.8. 
 (c) Evidence of Grant. All Options shall be evidenced by an Award Agreement between the Company and the Participant. The Award Agreement shall include such additional provisions as may be specified by the Administrator. 

5.2 Incentive Stock Options. The terms of any Incentive Stock Options granted pursuant to the Plan must comply with the conditions and
limitations contained in Section 13.2 and this Section 5.2. 
 (a) Eligibility. Incentive Stock Options may be granted only
to employees (as defined in accordance with Section 3401(c) of the Code) of the Company or a Subsidiary which constitutes a “subsidiary corporation” of the Company within the meaning of Section 424(f) of the Code or a Parent
which constitutes a “parent corporation” of the Company within the meaning of Section 424(e) of the Code. 
 (b) Exercise
Price. The exercise price per share of Stock shall be set by the Administrator; provided that subject to Section 5.2(e) the exercise price for any Incentive Stock Option shall not be less than 100% of the Fair Market Value on the
date of grant. 
  

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 (c) Expiration. Subject to Section 5.2(e), an Incentive Stock Option may not be exercised to
any extent by anyone after the tenth anniversary of the date it is granted, unless an earlier time is set in the Award Agreement. 
 (d)
Individual Dollar Limitation. The aggregate Fair Market Value (determined as of the time the Option is granted) of all shares of Stock with respect to which Incentive Stock Options are first exercisable by a Participant in any calendar year
may not exceed $100,000 or such other limitation as imposed by Section 422(d) of the Code, or any successor provision. To the extent that Incentive Stock Options are first exercisable by a Participant in excess of such limitation, the excess
shall be considered Non-Qualified Stock Options. 
 (e) Ten Percent Owners. An Incentive Stock Option shall be granted to any
individual who, at the date of grant, owns stock possessing more than ten percent of the total combined voting power of all classes of Stock of the Company or any “subsidiary corporation” of the Company or “parent corporation” of
the Company (each within the meaning of Section 424 of the Code) only if such Option is granted at an exercise price per share that is not less than 110% of the Fair Market Value per share of the Stock on the date of grant and the Option is
exercisable for no more than five years from the date of grant. 
 (f) Notice of Disposition. The Participant shall give the Company
prompt notice of any disposition of shares of Stock acquired by exercise of an Incentive Stock Option within (i) two years from the date of grant of such Incentive Stock Option or (ii) one year after the transfer of such shares of Stock to
the Participant. 
 (g) Transferability; Right to Exercise. An Incentive Stock Option shall not be transferable by the Participant
other than by will or by the laws of descent or distribution. During a Participant’s lifetime, an Incentive Stock Option may be exercised only by the Participant. 
 (h) Failure to Meet Requirements. Any Option (or portion thereof) purported to be an Incentive Stock Option, which, for any reason, fails to meet the requirements of Section 422 of the Code shall be
considered a Non-Qualified Stock Option. 
 5.3 Substitution of Stock Appreciation Rights. The Administrator may provide in the Award
Agreement evidencing the grant of an Option that the Administrator, in its sole discretion, shall have the right to substitute a Stock Appreciation Right for such Option at any time prior to or upon exercise of such Option, subject to the provisions
of Section 7.2 hereof; provided that such Stock Appreciation Right shall be exercisable with respect to the same number of shares of Stock for which such substituted Option would have been exercisable. 
 ARTICLE 6 
 RESTRICTED STOCK AWARDS

 6.1 Grant of Restricted Stock. The Administrator is authorized to make Awards of Restricted Stock to any Eligible Individual
selected by the Administrator in such amounts and subject to such terms and conditions as determined by the Administrator. All Awards of Restricted Stock shall be evidenced by an Award Agreement. 
  

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 6.2 Issuance and Restrictions. Restricted Stock shall be subject to such repurchase restrictions,
forfeiture restrictions, restrictions on transferability and other restrictions as the Administrator may impose (including, without limitation, limitations on the right to vote Restricted Stock or the right to receive dividends on the Restricted
Stock). These restrictions may lapse separately or in combination at such times, pursuant to such circumstances, in such installments, or otherwise, as the Administrator determines at the time of the grant of the Award or thereafter. 
 6.3 Repurchase or Forfeiture. Except as otherwise determined by the Administrator at the time of the grant of the Award or thereafter, upon
Termination of Service during the applicable restriction period, Restricted Stock that is at that time subject to restrictions shall be forfeited or subject to repurchase by the Company (or its assignee) under such terms as the Administrator shall
determine; provided, however, that the Administrator may (a) provide in any Award Agreement that restrictions or forfeiture conditions relating to Restricted Stock will be waived in whole or in part in the event of a
Participant’s Termination of Service under certain circumstances, and (b) in other cases waive in whole or in part restrictions or forfeiture conditions relating to Restricted Stock. 
 6.4 Certificates or Book Entries for Restricted Stock. Restricted Stock granted pursuant to the Plan may be evidenced in such manner as the
Administrator shall determine. Certificates or book entries evidencing shares of Restricted Stock must include an appropriate legend referring to the terms, conditions, and restrictions applicable to such Restricted Stock, and the Company may, at
its discretion, retain physical possession of any stock certificate until such time as all applicable restrictions lapse or the Award Agreement may provide that the shares shall be held in escrow by an escrow agent designated by the Company.

 ARTICLE 7 
 STOCK
APPRECIATION RIGHTS 
 7.1 Grant of Stock Appreciation Rights. A Stock Appreciation Right may be granted to any Eligible
Individual selected by the Administrator. A Stock Appreciation Right shall be subject to such terms and conditions not inconsistent with the Plan as the Administrator shall impose and shall be evidenced by an Award Agreement. 
 7.2 Stock Appreciation Rights. 
 (a) A
Stock Appreciation Right shall have a term set by the Administrator. A Stock Appreciation Right shall be exercisable in such installments as the Administrator may determine. A Stock Appreciation Right shall cover such number of shares of Stock as
the Administrator may determine. The exercise price per share of Stock subject to each Stock Appreciation Right shall be set by the Administrator. 
 (b) A Stock Appreciation Right shall entitle the Participant (or other person entitled to exercise the Stock Appreciation Right pursuant to the Plan) to exercise all or a 

  

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specified portion of the Stock Appreciation Right (to the extent then exercisable pursuant to its terms) and to receive from the Company an amount determined
by multiplying (i) the amount (if any) by which the Fair Market Value of a share of Stock on the date of exercise of the Stock Appreciation Right exceeds the exercise price per share of the Stock Appreciation Right, by (ii) the number of
shares of Stock with respect to which the Stock Appreciation Right shall have been exercised, subject to any limitations the Administrator may impose. 
 7.3 Payment and Limitations on Exercise. 
 (a) Payment of the amounts determined under
Section 7.2(b) above shall be in cash, in Stock (based on its Fair Market Value as of the date the Stock Appreciation Right is exercised) or a combination of both, as determined by the Administrator. 
 (b) To the extent any payment under Section 7.2(b) is effected in Stock it shall be made subject to satisfaction of all provisions of Article 5
above pertaining to Options. 
 ARTICLE 8 
 OTHER TYPES OF AWARDS 
 8.1 Dividend Equivalents. 
 (a) Any Eligible Individual selected by the Administrator may be granted Dividend Equivalents based on the dividends on the shares of Stock that are
subject to any Award, to be credited as of dividend payment dates, during the period between the date the Award is granted and the date the Award is exercised, vests, is distributed or expires, as determined by the Administrator. Such Dividend
Equivalents shall be converted to cash or additional shares of Stock by such formula and at such time and subject to such limitations as may be determined by the Administrator. 
 (b) Notwithstanding the foregoing, no Dividend Equivalents shall be payable with respect to Options or Stock Appreciation Rights. 
 8.2 Stock Payments. Any Eligible Individual selected by the Administrator may receive Stock Payments in the manner determined from time to time by
the Administrator. The number of shares of Stock or the number of options or other rights to purchase shares of Stock subject to a Stock Payment shall be determined by the Administrator and may be based upon the Performance Criteria or other
specific performance goals determined appropriate by the Administrator. 
 8.3 Restricted Stock Units. The Administrator is authorized
to make Awards of Restricted Stock Units to any Eligible Individual selected by the Administrator in such amounts and subject to such terms and conditions as determined by the Administrator. At the time of grant, the Administrator shall specify the
date or dates on which the Restricted Stock Units shall become fully vested and nonforfeitable, and may specify such conditions to vesting as it deems 

  

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appropriate. At the time of grant, the Administrator shall specify the maturity date applicable to each grant of Restricted Stock Units which shall be no
earlier than the vesting date or dates of the Award and may be determined at the election of the Eligible Individual to whom the Award is granted. On the maturity date, the Company shall, subject to Section 10.5(b), transfer to the Participant
one unrestricted, fully transferable share of Stock for each Restricted Stock Unit that is vested and scheduled to be distributed on such date and not previously forfeited. The Administrator shall specify the purchase price, if any, to be paid by
the Participant to the Company for such shares of Stock. 
 8.4 Performance Bonus Awards. Any Eligible Individual selected by the
Administrator may be granted one or more Performance-Based Awards in the form of a cash bonus (a “Performance Bonus Award”) payable upon the attainment of Performance Goals that are established by the Administrator and relate to one
or more of the Performance Criteria, in each case on a specified date or dates or over any period or periods determined by the Administrator. Any such Performance Bonus Award paid to a Covered Employee shall be based upon objectively determinable
bonus formulas established in accordance with Article 9. 
 8.5 Term. Except as otherwise provided herein, the term of any Award of
Dividend Equivalents, Stock Payments or Restricted Stock Units shall be set by the Administrator in its discretion. 
 8.6 Exercise or
Purchase Price. The Administrator may establish the exercise or purchase price, if any, of any Award of any Stock Payments or Restricted Stock Units; provided, however, that such price shall not be less than the par value of a share of
Stock on the date of grant, unless otherwise permitted by applicable state law. 
 8.7 Award Agreement. All Awards under this Article
8 shall be subject to such additional terms and conditions as determined by the Administrator and shall be evidenced by a written Award Agreement. 
  

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 ARTICLE 9 
 PERFORMANCE-BASED AWARDS 
 9.1 Purpose. The purpose of this Article 9 is to provide the
Administrator the ability to qualify Awards other than Options and Stock Appreciation Rights that are granted pursuant to Articles 6 and 8 as Qualified Performance-Based Compensation. If the Administrator, in its discretion, decides to grant a
Performance-Based Award to a Covered Employee, the provisions of this Article 9 shall control over any contrary provision contained in Articles 6 or 8; provided, however, that the Administrator may in its discretion grant Awards to Covered
Employees or other Eligible Individuals that are based on Performance Criteria or Performance Goals but that do not satisfy the requirements of this Article 9 and that are not intended to qualify as Qualified Performance-Based Compensation. Unless
otherwise specified by the Administrator at the time of grant, the Performance Criteria with respect to an Award intended to be Performance-Based Compensation payable to a Covered Employee shall be determined on the basis of GAAP. 
 9.2 Applicability. This Article 9 shall apply only to those Covered Employees selected by the Administrator to receive Performance-Based Awards.
The designation of a Covered Employee as a Participant for a Performance Period shall not in any manner entitle the Participant to receive an Award for the period. Moreover, designation of a Covered Employee as a Participant for a particular
Performance Period shall not require designation of such Covered Employee as a Participant in any subsequent Performance Period and designation of one Covered Employee as a Participant shall not require designation of any other Covered Employees as
a Participant in such period or in any other period. 
 9.3 Procedures with Respect to Performance-Based Awards. To the extent
necessary to comply with the Qualified Performance-Based Compensation requirements of Section 162(m)(4)(C) of the Code, with respect to any Award granted under Articles 6 and 8 which may be granted to one or more Covered Employees, no later
than ninety (90) days following the commencement of any Performance Period or any designated fiscal period or period of service (or such other time as may be required or permitted by Section 162(m) of the Code), the Administrator shall, in
writing, (a) designate one or more Covered Employees, (b) select the Performance Criteria applicable to the Performance Period, (c) establish the Performance Goals, and amounts of such Awards, as applicable, which may be earned for
such Performance Period based on the Performance Criteria, and (d) specify the relationship between Performance Criteria and the Performance Goals and the amounts of such Awards, as applicable, to be earned by each Covered Employee for such
Performance Period. Following the completion of each Performance Period, the Administrator shall certify in writing whether and the extent to which the applicable Performance Goals have been achieved for such Performance Period. In determining the
amount earned by a Covered Employee under such Awards, the Administrator shall have the right to reduce or eliminate (but not to increase) the amount payable at a given level of performance to take into account additional factors that the
Administrator may deem relevant to the assessment of individual or corporate performance for the Performance Period. 
 9.4 Payment of
Performance-Based Awards. Unless otherwise provided in the applicable Award Agreement and only to the extent otherwise permitted by Section 162(m)(4)(C) of the Code, as to an Award that is intended to qualify as Qualified Performance-Based

  

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Compensation, a Participant must be employed by the Company or a Parent or Subsidiary throughout the Performance Period. Furthermore, a Participant shall be
eligible to receive payment pursuant to a Performance-Based Award for a Performance Period only if and to the extent the Performance Goals for such period are achieved. 
 9.5 Additional Limitations. Notwithstanding any other provision of the Plan, any Award which is granted to a Covered Employee and is intended to constitute Qualified Performance-Based Compensation shall be
subject to any additional limitations set forth in Section 162(m) of the Code or any regulations or rulings issued thereunder that are requirements for qualification as Qualified Performance-Based Compensation, and the Plan and the Award
Agreement shall be deemed amended to the extent necessary to conform to such requirements. 
 ARTICLE 10 
 PROVISIONS APPLICABLE TO AWARDS 
 10.1
Stand-Alone and Tandem Awards. Awards granted pursuant to the Plan may, in the discretion of the Administrator, be granted either alone, in addition to, or in tandem with, any other Award granted pursuant to the Plan. Awards granted in
addition to or in tandem with other Awards may be granted either at the same time as or at a different time from the grant of such other Awards. 
 10.2 Award Agreement. Awards under the Plan shall be evidenced by Award Agreements that set forth the terms, conditions and limitations for each Award which may include the term of an Award, the provisions applicable in the event the
Participant’s employment or service terminates, and the Company’s authority to unilaterally or bilaterally amend, modify, suspend, cancel or rescind an Award. 
 10.3 Limits on Transfer. 
 (a) (i) No right or interest of a Participant in any Award may be sold,
pledged, assigned, or transferred in any manner other than by will or the laws of descent and distribution or, subject to the consent of the Administrator, pursuant to a DRO, unless and until such Award has been exercised, or the shares underlying
such Award have been issued, and all restrictions applicable to such shares have lapsed. 
 (ii) No Award or interest or right therein shall
be liable for the debts, contracts or engagements of the Participant or his successors in interest or shall be subject to disposition by transfer, alienation, anticipation, pledge, hypothecation, encumbrance, assignment or any other means whether
such disposition be voluntary or involuntary or by operation of law by judgment, levy, attachment, garnishment or any other legal or equitable proceedings (including bankruptcy), and any attempted disposition thereof shall be null and void and of no
effect, except to the extent that such disposition is permitted by the preceding sentence. 
 (iii) During the lifetime of the Participant,
only the Participant may exercise an Award (or any portion thereof) granted to him under the Plan, unless it has been disposed of pursuant to a DRO; after the death of the Participant, any exercisable portion of an Award may, prior to the time when
such portion becomes unexercisable under the Plan or the 

  

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applicable Award Agreement, be exercised by his personal representative or by any person empowered to do so under the deceased Participant’s will or
under the then applicable laws of descent and distribution. 
 (b) Notwithstanding Section 10.3(a), the Administrator, in its sole
discretion, may determine to permit a Participant to transfer an Award other than an Incentive Stock Option to any one or more Permitted Transferees (as defined below), subject to the following terms and conditions: (i) an Award transferred to
a Permitted Transferee shall not be assignable or transferable by the Permitted Transferee other than by will or the laws of descent and distribution; (ii) any Award which is transferred to a Permitted Transferee shall continue to be subject to
all the terms and conditions of the Award as applicable to the original Participant (other than the ability to further transfer the Award); and (iii) the Participant and the Permitted Transferee shall execute any and all documents requested by
the Administrator, including, without limitation documents to (A) confirm the status of the transferee as a Permitted Transferee, (B) satisfy any requirements for an exemption for the transfer under applicable federal, state and foreign
securities laws and (C) evidence the transfer. For purposes of this Section 10.3(b), “Permitted Transferee” shall mean, with respect to a Participant, any “family member” of the Participant, as defined under the
instructions to use of the Form S-8 Registration Statement under the Securities Act or any other transferee specifically approved by the Administrator. 
 10.4 Beneficiaries. Notwithstanding Section 10.3, a Participant may, in the manner determined by the Administrator, designate a beneficiary to exercise the rights of the Participant and to receive any
distribution with respect to any Award upon the Participant’s death. A beneficiary, legal guardian, legal representative, or other person claiming any rights pursuant to the Plan is subject to all terms and conditions of the Plan and any Award
Agreement applicable to the Participant, except to the extent the Plan and Award Agreement otherwise provide, and to any additional restrictions deemed necessary or appropriate by the Administrator. 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 with respect to more than 50% of the Participant’s interest in the Award shall not be effective without the prior written
consent of the Participant’s spouse. If no beneficiary has been designated or survives the Participant, payment shall be made to the person entitled thereto pursuant to the Participant’s will or the laws of descent and distribution.
Subject to the foregoing, a beneficiary designation may be changed or revoked by a Participant at any time provided the change or revocation is filed with the Administrator prior to the Participant’s death. 
 10.5 Stock Certificates; Book Entry Procedures. 
 (a) Notwithstanding anything herein to the contrary, the Company shall not be required to issue or deliver any certificates or make any book entries evidencing shares of Stock pursuant to the exercise of any Award,
unless and until the Board has determined, with advice of counsel, that the issuance and delivery of such certificates is in compliance with all applicable laws, regulations of governmental authorities and, if applicable, the requirements of any
exchange on which the shares of Stock are listed or traded. All Stock certificates delivered pursuant to the Plan and all shares issued pursuant to book-entry procedures are subject to any stop-transfer orders and other restrictions as the
Administrator deems necessary or advisable to 

  

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comply with federal, state, or foreign jurisdiction, securities or other laws, rules and regulations and the rules of any national securities exchange or
automated quotation system on which the Stock is listed, quoted, or traded. The Administrator may place legends on any Stock certificate or book-entry to reference restrictions applicable to the Stock. In addition to the terms and conditions
provided herein, the Board may require that a Participant make such reasonable covenants, agreements, and representations as the Board, in its discretion, deems advisable in order to comply with any such laws, regulations, or requirements. The
Administrator shall have the right to require any Participant to comply with any timing or other restrictions with respect to the settlement or exercise of any Award, including a window-period limitation, as may be imposed in the discretion of the
Administrator. 
 (b) Notwithstanding any other provision of the Plan, unless otherwise determined by the Administrator or required by any
applicable law, rule or regulation, the Company shall not deliver to any Participant certificates evidencing shares of Stock issued in connection with any Award and instead such shares of Stock shall be recorded in the books of the Company (or, as
applicable, its transfer agent or stock plan administrator). 
 10.6 Paperless Administration. In the event that the Company
establishes for itself or using the services of a third party, an automated system for the documentation, granting or exercise of Awards, such as a system using an internet website or interactive voice response, then the paperless documentation,
granting or exercise of Awards by a Participant may be permitted through the use of such an automated system. 
 10.7 Payment. The
Administrator shall determine the methods by which payments by any Participant with respect to any Awards granted under the Plan shall be made, including, without limitation: (a) cash or check, (b) shares of Stock (including, in the case
of payment of the exercise price of an Award, shares of Stock issuable pursuant to the exercise of the Award) or shares of Stock held for such period of time as may be required by the Administrator in order to avoid adverse accounting consequences,
in each case, having a Fair Market Value on the date of delivery equal to the aggregate payments required, (c) delivery of a notice that the Participant has placed a market sell order with a broker with respect to shares of Stock then issuable
upon exercise or vesting of an Award, and that the broker has been directed to pay a sufficient portion of the net proceeds of the sale to the Company in satisfaction of the aggregate payments required, provided, that payment of such proceeds is
then made to the Company upon settlement of such sale, or (d) other form of legal consideration acceptable to the Administrator. The Administrator shall also determine the methods by which shares of Stock shall be delivered or deemed to be
delivered to Participants. Notwithstanding any other provision of the Plan to the contrary, no Participant who is a Director or an “executive officer” of the Company within the meaning of Section 13(k) of the Exchange Act shall be
permitted to make payment with respect to any Awards granted under the Plan, or continue any extension of credit with respect to such payment with a loan from the Company or a loan arranged by the Company in violation of Section 13(k) of the
Exchange Act. 
 10.8 Withholding. The Company or any Parent or Subsidiary shall have the authority and the right to deduct or
withhold, or require a Participant to remit to the Company, an amount sufficient to satisfy federal, state, local and foreign taxes (including the Participant’s FICA or employment tax obligations) required by law to be withheld with respect to
any taxable event 

  

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concerning a Participant arising as a result of this Plan. The Administrator may in its discretion and in satisfaction of the foregoing requirement elect to
have the Company or any Parent or Subsidiary, as applicable, withhold shares of Stock otherwise issuable under an Award (or allow the return of shares of Stock) having a Fair Market Value equal to the sums required to be withheld. Notwithstanding
any other provision of the Plan, the number of shares of Stock which may be withheld with respect to the issuance, vesting, exercise or payment of any Award (or which may be repurchased from the Participant of such Award within six months (or such
other period as may be determined by the Administrator) after such shares of Stock were acquired by the Participant from the Company) in order to satisfy the Participant’s federal, state, local and foreign income and payroll tax liabilities
with respect to the issuance, vesting, exercise or payment of the Award shall be limited to the number of shares of Stock which have a Fair Market Value on the date of withholding or repurchase equal to the aggregate amount of such liabilities based
on the minimum statutory withholding rates for federal, state, local and foreign income tax and payroll tax purposes that are applicable to such supplemental taxable income. 
 10.9 Forfeiture Provisions. Pursuant to its general authority to determine the terms and conditions applicable to Awards under the Plan, the
Administrator shall have the right to provide, in the terms of Awards made under the Plan, or to require a Participant to agree by separate written instrument, that: (a)(i) any proceeds, gains or other economic benefit actually or constructively
received by the Participant upon any receipt or exercise of the Award, or upon the receipt or resale of any Common Stock underlying the Award, must be paid to the Company, and (ii) the Award shall terminate and any unexercised portion of the
Award (whether or not vested) shall be forfeited, if (b)(i) a Termination of Service occurs prior to a specified date, or within a specified time period following receipt or exercise of the Award, or (ii) the Participant at any time, or during
a specified time period, engages in any activity in competition with the Company, or which is inimical, contrary or harmful to the interests of the Company, as further defined by the Administrator or (iii) the Participant incurs a Termination
of Service for Misconduct. 
 10.10 Lock-Up. The Company (or a representative of the underwriter(s)) may, in connection with the first
underwritten registration of the offering of any securities of the Company under the Securities Act, require that the Participant not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging
or similar transaction with the same economic effect as a sale, any shares of Stock or other securities of the Company held by the Participant, for a period of time specified by the underwriter(s) (not to exceed one hundred eighty
(180) days) following the effective date of the registration statement of the Company filed under the Securities Act. The Participant shall execute and deliver such other agreements as may be reasonably requested by the Company and/or the
underwriter(s) that are consistent with the foregoing or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to the Participant’s shares
of Stock until the end of such period. 
  

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 ARTICLE 11 
 CHANGES IN CAPITAL STRUCTURE 
 11.1 Adjustments. 
 (a) In the event of any stock dividend, stock split, combination or exchange of shares, merger, consolidation, distribution of Company assets to
shareholders (other than normal cash dividends), or any other corporate event affecting the Stock or the share price of the Stock other than an Equity Restructuring, the Administrator shall make equitable adjustments, if any, as the Administrator in
its discretion may deem appropriate to reflect such changes with respect to (i) the aggregate number and type of shares that may be issued under the Plan (including, but not limited to, adjustments of the limitations in Sections 3.1 and 3.3);
(ii) the terms and conditions of any outstanding Awards (including, without limitation, any applicable performance targets or criteria with respect thereto); and (iii) the grant or exercise price per share for any outstanding Awards under
the Plan. Any adjustment affecting an Award intended as Qualified Performance-Based Compensation shall be made consistent with the requirements of Section 162(m) of the Code. 
 (b) In the event of any transaction or event described in Section 11.1(a) 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 laws, regulations or accounting principles, the Administrator, in
its sole discretion and on such terms and conditions as it deems appropriate, either by amendment of the terms of any outstanding Awards or by action taken prior to the occurrence of such transaction or event, is hereby authorized to take any one or
more of the following actions whenever the Administrator determines that 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
Award under the Plan, to facilitate such transactions or events or to give effect to such changes in laws, regulations or principles: 
 (i)
To provide for either (A) termination of any such Award in exchange for an amount of cash and/or other property, if any, equal to the amount that would have been received upon the exercise of such Award or realization of the Participant’s
rights (and, for the avoidance of doubt, if as of the date of the occurrence of the transaction or event described in this Section 11.1(b) the Administrator determines in good faith that no amount would have been attained upon the exercise of
such Award or realization of the Participant’s rights, then such Award may be terminated by the Company without payment) or (B) the replacement of such Award with other rights or property selected by the Administrator in its sole
discretion; 
 (ii) To provide that such Award be assumed by the successor or survivor entity, or a parent or subsidiary thereof, or shall
be substituted for by similar options, rights or awards covering the stock of the successor or survivor entity, or a parent or subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices; and 
 (iii) To make adjustments in the number and type of shares of Stock (or other securities or property) subject to outstanding Awards, and in the number
and kind of outstanding Restricted Stock or Restricted Stock Unit Awards and/or in the terms and conditions of (including the grant or exercise price), and the criteria included in, outstanding options, rights and awards and options, rights and
awards which may be granted in the future; 
  

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 (iv) To provide that such Award shall be exercisable or payable or fully vested with respect to all
shares covered thereby, notwithstanding anything to the contrary in the Plan or the applicable Award Agreement; and 
 (v) To provide that
the Award cannot vest, be exercised or become payable after such event. 
 (c) In connection with the occurrence of any Equity Restructuring,
and notwithstanding anything to the contrary in Sections 11.1(a) and 11.1(b): 
 (i) The number and type of securities subject to each
outstanding Award and the exercise price or grant price thereof, if applicable, will be proportionately adjusted. The adjustments provided under this Section 11.1(c)(i) shall be nondiscretionary and shall be final and binding on the affected
Participant and the Company. 
 (ii) The Administrator shall make such proportionate adjustments, if any, as the Administrator in its
discretion may deem appropriate to reflect such Equity Restructuring with respect to the aggregate number and kind of shares that may be issued under the Plan (including, but not limited to, adjustments of the limitations in Sections 3.1 and 3.3).

 11.2 Acceleration Upon a Change in Control. 
 (a) Notwithstanding Section 11.1, and except as may otherwise be provided in any applicable Award Agreement or other written agreement entered into between the Company, a Parent, a Subsidiary, or other Company
affiliate and a Participant, if a Change in Control occurs and a Participant’s Awards are not continued, converted, assumed, or replaced by (i) the Company or a Parent or Subsidiary of the Company, or (ii) a Successor Entity, then
immediately prior to the Change in Control such Awards shall become fully exercisable and/or payable, as applicable, and all forfeiture, repurchase and other restrictions on such Awards shall lapse. Upon, or in anticipation of, a Change in Control,
the Administrator may cause any and all Awards outstanding hereunder to terminate at a specific time in the future, including but not limited to the date of such Change in Control, and shall give each Participant the right to exercise such Awards
during a period of time as the Administrator, in its sole and absolute discretion, shall determine. 
 (b) For the purposes of this
Section 11.2, an Award shall be considered continued, converted, assumed, or replaced if, following the Change in Control, the Award confers the right to purchase or receive, for each share of Stock subject to the Award immediately prior to the
Change in Control, the consideration (whether stock, cash, or other securities or property) received in the Change in Control by holders of Stock for each share held on the effective date of the transaction (and if holders were offered a choice of
consideration, the type of consideration chosen by the holders of a majority of the outstanding shares); provided, however, that if such consideration received in the Change in Control was not solely common stock of the Successor Entity, the
Administrator may, with the consent of the Successor Entity, provide for the consideration to be received upon the exercise of the Award, for each share of Stock subject to an Award, to be solely common stock of the Successor Entity equal in fair
market value to the per share consideration received by holders of Stock in the Change in Control. 
  

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 (c) If at any time or from time to time during the period beginning on the date of a Change in Control
and ending eighteen (18) months after the date of such Change in Control a Participant suffers a Termination of Service due to an involuntary termination (not including death or Disability) by the Company or any Parent or Subsidiary without
Misconduct or due to a Constructive Termination, then all Awards held by such Participant shall become fully exercisable and/or payable, as applicable, and all forfeiture, repurchase and other restrictions on such Awards shall lapse. 
 11.3 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 of Stock subject to an Award or the grant or exercise price of any Award. 
 11.4 Restrictions on Exercise. In the event of any pending stock dividend, stock split, combination or exchange of shares, merger, consolidation or other distribution (other than normal cash dividends) of Company assets to
shareholders, or any other change affecting the shares of Stock or the share price of the Stock including any Equity Restructuring, for reasons of administrative convenience, the Company in its sole discretion may refuse to permit the exercise of
any Award during a period of 30 days prior to the consummation of any such transaction. 
 ARTICLE 12 
 ADMINISTRATION 
 12.1
Administrator. Unless and until the Board delegates administration of the Plan to a Committee as set forth below, the Plan shall be administered by the full Board. The term “Administrator” as used in this Plan shall apply to any
person or persons who at the time have the authority to administer the Plan. If administration is delegated to a Committee, the Committee shall have, in connection with the administration of the Plan, the powers theretofore possessed by the Board,
including the power to delegate to a subcommittee any of the administrative powers the Committee is authorized to exercise, subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time
by the Board. Notwithstanding the foregoing, however, from and after the Public Trading Date, a Committee of the Board shall administer the Plan and such committee shall consist solely of two or more members of the Board each of whom is a
Non-Employee Director, and with respect to awards that are intended to be Performance-Based Awards, an “outside director” within the meaning of Section 162(m) of the Code; provided that any action taken by the Committee shall
be valid and effective, whether or not members of the Committee at the time of such action are later determined not to have satisfied the requirements for membership set forth in this Section 12.1 

  

 23 

 
or otherwise provided in any charter of the Committee. Notwithstanding the foregoing: (a) the full Board, acting by a majority of its members in office,
shall conduct the general administration of the Plan with respect to all Awards granted to Independent Directors and for purposes of such Awards the term “Administrator” as used in this Plan shall be deemed to refer to the Board and
(b) the Board or the Committee may delegate its authority hereunder to the extent permitted by Section 12.5. In addition, in its sole discretion, the Board may at any time and from time to time exercise any and all rights and duties of the
Administrator under the Plan except with respect to matters which, following the Public Trading Date, are required to be determined in the sole discretion of the Committee under Rule 16b-3 of the Exchange Act or Section 162(m) of the Code, or
any regulations or rules issued thereunder. Except as may otherwise be provided in any charter of the Committee, appointment of Committee members shall be effective upon acceptance of appointment; Committee members may resign at any time by
delivering written notice to the Board; and vacancies in the Committee may only be filled by the Board. 
 12.2 Action by the
Administrator. Unless otherwise established by the Board or in any charter of the Company or the Committee, a majority of the Administrator shall constitute a quorum and the acts of a majority of the members present at any meeting at which a
quorum is present, and 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 of any Parent or Subsidiary, the Company’s independent certified public accountants, or any executive compensation consultant or other professional
retained by the Company or any Parent or Subsidiary to assist in the administration of the Plan. 
 12.3 Authority of Administrator.
Subject to any specific designation in the Plan, the Administrator has the exclusive power, authority and discretion to: 
 (a) Designate
Eligible Individuals to receive Awards; 
 (b) Determine the type or types of Awards to be granted to each Participant; 
 (c) Determine the number of Awards to be granted and the number of shares of Stock to which an Award will relate; 
 (d) Determine the terms and conditions of any Award granted pursuant to the Plan, including, but not limited to, the exercise price, grant price, or
purchase price, any reload provision, any restrictions or limitations on the Award, any schedule for lapse of forfeiture restrictions or restrictions on the exercisability of an Award, and accelerations or waivers thereof, any provisions related to
non-competition and recapture of gain on an Award, based in each case on such considerations as the Committee in its sole discretion determines; 
 (e) Determine whether, to what extent, and pursuant to what circumstances an Award may be settled in, or the exercise price of an Award may be paid in, cash, Stock, other Awards, or other property, or an Award may be canceled, forfeited, or
surrendered; 
 (f) Prescribe the form of each Award Agreement, which need not be identical for each Participant; 
  

 24 

 (g) Decide all other matters that must be determined in connection with an Award; 
 (h) Establish, adopt, or revise any rules and regulations as it may deem necessary or advisable to administer the Plan; 
 (i) Interpret the terms of, and any matter arising pursuant to, the Plan or any Award Agreement; and 
 (j) Make all other decisions and determinations that may be required pursuant to the Plan or as the Committee deems necessary or advisable to administer
the Plan. 
 12.4 Decisions Binding. The Administrator’s interpretation of the Plan, any Awards granted pursuant to the Plan, any
Award Agreement and all decisions and determinations by the Committee with respect to the Plan are final, binding, and conclusive on all parties. 
 12.5 Delegation of Authority. To the extent permitted by applicable law, the Board or the Committee may from time to time delegate to a committee of one or more members of the Board or one or more officers of the Company the
authority to grant or amend Awards to Participants other than (a) Employees who are subject to Section 16 of the Exchange Act, (b) Covered Employees, or (c) officers of the Company (or Directors) to whom authority to grant or
amend Awards has been delegated hereunder. Any delegation hereunder shall be subject to the restrictions and limits that the Board or the Committee specifies at the time of such delegation, and the Board or the Committee may at any time rescind the
authority so delegated or appoint a new delegatee. At all times, the delegatee appointed under this Section 12.5 shall serve in such capacity at the pleasure of the Board or the Committee. 
 12.6 Amendment or Exchange of Awards. The Administrator may, without shareholder approval, (i) amend any Award to reduce the per share
exercise price of such an Award below the per share exercise price as of the date the Award is granted and (ii) grant an Award in exchange for, or in connection with, the cancellation or surrender of an Award having a higher per share exercise
price. 
 ARTICLE 13 
 EFFECTIVE AND EXPIRATION DATE 
 13.1 Effective Date. The Plan is effective as of the date of the Board’s initial
adoption of the Plan (the “Effective Date”). 
 13.2 Expiration Date. The Plan will expire on, and no Award may be
granted pursuant to the Plan after, the tenth anniversary of the date this Plan is approved by the Board (the “Expiration Date”). Any Awards that are outstanding on the Expiration Date shall remain in force according to the terms of
the Plan and the applicable Award Agreement. 
  

 25 

 13.3 Approval of Plan by Shareholders. The Plan will be submitted for the approval of the
Company’s shareholders within twelve (12) months after the date of the Board’s initial adoption of the Plan. Awards may be granted or awarded prior to such shareholder approval; provided that such Awards shall not be exercisable nor
shall such Awards vest prior to the time when the Plan is approved by the shareholders; and, provided further, that if such approval has not been obtained at the end of said twelve month period, all Awards previously granted or awarded under the
Plan shall thereupon be canceled and become null and void. In addition, if the Board determines that Awards other than Options and Stock Appreciation Rights which may be granted to Covered Employees should continue to be eligible to qualify as
performance-based compensation under Section 162(m)(4)(C) of the Code, the Performance Criteria must be disclosed to and approved by the Company’s shareholders no later than the first shareholder meeting that occurs in the fifth year
following the year in which the Company’s shareholders previously approved by the Plan. 
 ARTICLE 14 
 AMENDMENT, MODIFICATION, AND TERMINATION 
 14.1 Amendment, Modification, And Termination. The Board may terminate, amend or modify the Plan at any time and from time to time; provided, however, that (a) to the extent necessary and desirable to comply with any
applicable law, regulation, or stock exchange rule, the Company shall obtain shareholder approval of any Plan amendment in such a manner and to such a degree as required, and (b) shareholder approval shall be required for any amendment to the
Plan that increases the number of shares of Stock available under the Plan. 
 14.2 Repricing Permitted. Notwithstanding
Section 14.1 above, the Administrator shall have the authority, without the approval of the shareholders of the Company, to authorize the amendment of any outstanding Award to reduce its price per share. Furthermore, the Administrator shall
have the authority to provide that an Award shall be canceled and replaced with the grant of an Award having a lesser price per share without the further approval of shareholders of the Company. Finally, the Administrator shall have the authority,
without the approval of the shareholders of the Company, to amend any outstanding award to increase the price per share or to cancel and replace an Award with the grant of an Award having a price per share that is greater than or equal to the price
per share of the original Award. 
 14.3 Awards Previously Granted. No termination, amendment, or modification of the Plan shall
adversely affect in any material way any Award previously granted pursuant to the Plan without the prior written consent of the Participant. 
 ARTICLE 15 
 GENERAL PROVISIONS 
 15.1 No Rights to Awards. No Eligible Individual or other person shall have any claim to be granted any Award pursuant to the Plan, and neither the Company nor the Administrator is obligated to treat Eligible
Individuals, Participants or any other persons uniformly. 
  

 26 

 15.2 No Shareholders Rights. Except as otherwise provided herein, a Participant shall have none of
the rights of a shareholder with respect to shares of Stock covered by any Award until the Participant becomes the record owner of such shares of Stock. 
 15.3 No Right to Employment or Services. Nothing in the Plan or any Award Agreement shall interfere with or limit in any way the right of the Company or any Parent or Subsidiary to terminate any
Participant’s employment or services at any time, nor confer upon any Participant any right to continue in the employ or service of the Company or any Parent or Subsidiary. 
 15.4 Unfunded Status of Awards. The Plan is intended to be an “unfunded” plan for incentive compensation. With respect to any payments
not yet made to a Participant pursuant to an Award, nothing contained in the Plan or any Award Agreement shall give the Participant any rights that are greater than those of a general creditor of the Company or any Parent or Subsidiary. 

15.5 Indemnification. To the extent allowable pursuant to applicable law, each member of the Administrator or of the Board shall be indemnified
and held harmless by the Company from any loss, cost, liability, or expense that may be imposed upon or reasonably incurred by such member in connection with or resulting from any claim, action, suit, or proceeding to which he or she may be a party
or in which he or she may be involved by reason of any action or failure to act pursuant to the Plan and against and from any and all amounts paid by him or her in satisfaction of judgment in such action, suit, or proceeding against him or her;
provided he or she gives the Company an opportunity, at its own expense, to handle and defend the same before he or she undertakes to handle and defend it on his or her own behalf. The foregoing right of indemnification shall not be exclusive
of any other rights of indemnification to which such persons may be entitled pursuant to the Company’s Articles of Incorporation or Bylaws, as a matter of law, or otherwise, or any power that the Company may have to indemnify them or hold them
harmless. 
 15.6 Relationship to other Benefits. No payment pursuant to the Plan shall be taken into account in determining any
benefits pursuant to any pension, retirement, savings, profit sharing, group insurance, welfare or other benefit plan of the Company or any Parent or Subsidiary except to the extent otherwise expressly provided in writing in such other plan or an
agreement thereunder. 
 15.7 Expenses. The expenses of administering the Plan shall be borne by the Company and its Subsidiaries.

 15.8 Titles and Headings. The titles and headings of the Sections in the Plan are for convenience of reference only and, in the
event of any conflict, the text of the Plan, rather than such titles or headings, shall control. 
 15.9 Fractional Shares. No
fractional shares of Stock shall be issued and the Administrator shall determine, in its discretion, whether cash shall be given in lieu of fractional shares of Stock or whether such fractional shares of Stock shall be eliminated by rounding up or
down as appropriate. 
  

 27 

 15.10 Limitations Applicable to Section 16 Persons. Notwithstanding any other provision of
the Plan, the Plan, and any Award granted or awarded to any Participant who is then subject to Section 16 of the Exchange Act, shall be subject to any additional limitations set forth in any applicable exemptive rule under Section 16 of
the Exchange Act (including any amendment to Rule 16b-3 of the Exchange Act) that are requirements for the application of such exemptive rule. To the extent permitted by applicable law, the Plan and Awards granted or awarded hereunder shall be
deemed amended to the extent necessary to conform to such applicable exemptive rule. 
 15.11 Government and Other Regulations. The
obligation of the Company to make payment of awards in Stock or otherwise shall be subject to all applicable laws, rules, and regulations, and to such approvals by government agencies as may be required. The Company shall be under no obligation to
register pursuant to the Securities Act any of the shares of Stock paid pursuant to the Plan. If the shares of Stock paid pursuant to the Plan may in certain circumstances be exempt from registration pursuant to the Securities Act, the Company may
restrict the transfer of such shares of Stock in such manner as it deems advisable to ensure the availability of any such exemption. 
 15.12
Compliance with California Securities Laws. Unless determined otherwise by the Administrator, prior to the Public Trading Date, this Plan is intended to comply with Section 25102(o) of the California Corporations Code and the regulations
issued thereunder. Appendix I to the Plan sets forth the requirements under Section 25102(o) of the California Corporations Code and the regulations issued thereunder and is incorporated herein by reference. If any of the provisions contained
in this Plan are inconsistent with such requirements or Appendix I, such provisions shall be deemed null and void. The invalidity of any provision of this Plan shall not affect the validity or enforceability of any other provision of this Plan,
which shall remain in full force and effect. 
 15.13 Appendices. The Board may approve such supplements to, or amendments, or
appendices to, the Plan as it may consider necessary or appropriate for purposes of compliance with applicable laws or otherwise and such supplements, amendments or appendices shall be considered a part of the Plan; provided, however, that no
such supplements, amendments or appendices shall increase the share limitation contained in Section 3.1 of the Plan. 
 15.14
Section 409A. To the extent that the Administrator determines that any Award granted under the Plan is subject to Section 409A of the Code, the Award Agreement evidencing such Award shall incorporate the terms and conditions
required by Section 409A of the Code. To the extent applicable, the Plan and Award Agreements shall be interpreted in accordance with Section 409A of the Code and Department of Treasury regulations and other interpretive guidance issued
thereunder, including without limitation any such regulations or other guidance that may be issued after the adoption of the Plan. Notwithstanding any provision of the Plan to the contrary, in the event that following the adoption of the Plan the
Administrator determines that any Award may be subject to Section 409A of the Code and related Department of Treasury guidance (including such Department of Treasury guidance as may be issued after the adoption of the Plan), the Administrator
may adopt such amendments to the Plan and the applicable Award Agreement or adopt other policies and procedures (including amendments, policies and procedures with retroactive effect), or take any other actions, that the Administrator determines

  

 28 

 
are necessary or appropriate to (a) exempt the Award from Section 409A of the Code and/or preserve the intended tax treatment of the benefits
provided with respect to the Award, or (b) comply with the requirements of Section 409A of the Code and related Department of Treasury guidance. 
 15.15 Governing Law. The Plan and all Award Agreements shall be construed in accordance with and governed by the laws of the State of California, without regard to the conflicts of law principles thereof.

  

 29 

 APPENDIX I 
 TO 
 PROMETHEUS LABORATORIES INC. 
 2009 EQUITY INCENTIVE AWARD PLAN 
 California State Securities Law Compliance

 Notwithstanding anything to the contrary contained in the Prometheus Laboratories Inc. 2009 Equity Incentive Award Plan (the
“Plan”) and except as otherwise determined by the Administrator, the provisions set forth in this Appendix shall apply to all Awards granted under the Plan prior to the Public Trading Date. This Appendix shall be of no
further force and effect on or after the Public Trading Date. Definitions as set out in Article 2 of the Plan are applicable to this Appendix. 
 The purpose of this Appendix is to set forth those provisions of the Plan necessary to comply with Section 25102(o) of the California Corporations Code and the regulations issued thereunder. If any of the provisions contained in this
Appendix are inconsistent with such requirements, such provisions shall be deemed amended to the extent necessary to be consistent with such requirements. The invalidity of any provision of this Appendix shall not affect the validity or
enforceability of any other provision of this Appendix, which shall remain in full force and effect. 
 References to Articles and Sections
set forth in this Appendix are to those Articles and Sections of the Plan. 
 1.1 Term of Awards. The term of each Award shall be no
more than ten years from the date of grant thereof. 
 2.1 Exercisability Following Termination. 
 (a) Termination Other Than Death or Disability. If a Participant has a Termination of Service for any reason other than by reason of the
Participant’s Disability or death, such Participant may exercise his or her Award within such period of time as is specified in the Award Agreement to the extent that the Award is vested on the date of termination; provided,
however, that prior to the Public Trading Date, such period of time shall not be less than thirty days (but in no event later than the expiration of the term of the Award as set forth in the Award Agreement). In the absence of a specified
time in the Award Agreement, the Option shall remain exercisable for three months following the Participant’s Termination of Service for any reason other than death or Disability. 
 (b) Death. If a Participant has a Termination of Service as a result of the Participant’s death, the Award may be exercised within such
period of time as is specified in the Award Agreement; provided, however, that prior to the Public Trading Date, such period of time shall not be less than six months (but in no event later than the expiration of the term of such

 
Award as set forth in the Notice of Grant), by the Participant’s estate or by a person who acquires the right to exercise the Award by bequest or
inheritance, but only to the extent that the Award is vested on the date of death. In the absence of a specified time in the Award Agreement, the Award shall remain exercisable for twelve months following the Participant’s Termination of
Service for death. 
 (c) Disability of Participant. If a Participant has a Termination of Service as a result of the
Participant’s Disability, the Participant may exercise his or her Award within such period of time as is specified in the Award Agreement to the extent the Award is vested on the date of termination; provided, however, that prior
to the Public Trading Date, such period of time shall not be less than six months (but in no event later than the expiration of the term of such Award as set forth in the Award Agreement). In the absence of a specified time in the Award Agreement,
the Award shall remain exercisable for twelve months following the Participant’s Termination of Service for Disability. 
 (d)
Misconduct of Participant. If a Participant has a Termination of Service as a result of the Participant’s Misconduct, the Award shall terminate immediately and cease to remain outstanding. 
 3.1 Repurchase Provisions. In the event the Administrator provides that the Company may repurchase Stock acquired upon exercise of an Award upon
the occurrence of certain specified events, including, without limitation, a Participant’s Termination of Service, divorce, bankruptcy or insolvency, then any such repurchase right shall be set forth in the applicable Award Agreement or in
another agreement referred to in such agreement and, to the extent required by Section 260.140.41 and Section 260.140.42 of Title 10 of the California Code of Regulations (or any successor regulation, including, without limitation,
Section 260.140.8 of Title 10 of the California Code of Regulations), any such repurchase right set forth in an Award granted prior to the Public Trading Date to a person who is not an officer, member of the Board, manager or consultant shall
be upon the following terms: (i) if the repurchase option gives the Company the right to repurchase the shares upon the Participant’s Termination of Service at not less than the Fair Market Value of the shares to be purchased on the date
of termination of employment or service, then (A) the right to repurchase shall be exercised for cash or cancellation of purchase money indebtedness for the shares within six months of termination (or in the case of shares issued upon exercise
of Awards after such date of termination, within six months after the date of the exercise) or such longer period as may be agreed to by the Administrator and the Participant and (B) the right terminates on the Public Trading Date; and
(ii) if the repurchase option gives the Company the right to repurchase the Stock upon the Participant’s Termination of Service at the original purchase price for such Stock, then (A) the right to repurchase at the original purchase
price shall lapse at the rate of at least 20% of the shares per year over five (5) years from the date the Award is granted (without respect to the date the Award was exercised or became exercisable) and (B) the right to repurchase shall
be exercised for cash or cancellation of purchase money indebtedness for the shares within six months of termination (or, in the case of shares issued upon exercise of Awards, after such date of termination, within six months after the date of the
exercise) or such longer period as may be agreed to by the Company and the Participant. 
 4.1 Information Rights. Prior to the Public
Trading Date and to the extent required by 

 
Section 260.140.46 of Title 10 of the California Code of Regulations, the Company shall provide to each Participant and to each individual who acquires
Stock pursuant to the Plan, not less frequently than annually during the period such Participant has one or more Awards outstanding, and, in the case of an individual who acquires Stock pursuant to the Plan, during the period such individual owns
such Stock, copies of annual financial statements. Notwithstanding the preceding sentence, the Company shall not be required to provide such statements to key employees whose duties in connection with the Company assure their access to equivalent
information. 
 5.1 Transferability. Prior to the Public Trading Date, no Award shall be assigned, transferred, or otherwise disposed
of by a Participant other than by will or the laws of descent and distribution or, with respect to Awards other than Incentive Stock Options, as permitted by Rule 701 of the Securities Act. 
 6.1 Limitation on Number of Shares. Prior to the Public Trading Date and to the extent required by Section 260.140.45 of Title 10 of the
California Code of Regulations, at no time shall the total number of shares of Stock issuable upon exercise of all outstanding Options under the Plan and any shares of Stock provided for under any bonus or similar plan or agreement of the Company
exceed 30% of the then-outstanding shares of Stock of the Company, as calculated pursuant to Section 260.140.45 of Title 10 of the California Code of Regulations (or any successor regulation), unless a percentage higher than 30% is approved by
at least two-thirds of the outstanding securities of the Company entitled to vote. The number of shares of Stock which may be issued or transferred pursuant to Awards under the Plan shall be reduced to the extent necessary to comply with this
provision. 
 7.1 Amendment of Plan to Conform to California Code of Regulations. Subject to Article 12 of the Plan, the Administrator
may delegate to a committee of one or more members of the Board or one or more officers of the Company the authority to amend the Plan to the extent required to conform the Plan to any amendment to the California Code of Regulations adopted
following the Effective Date resulting in the elimination of any requirements under such regulations that are applicable to the Plan or the application of less restrictive requirements under such regulations to the Plan. 

 PROMETHEUS LABORATORIES INC. 
 2009 EQUITY INCENTIVE AWARD PLAN 
 STOCK OPTION GRANT NOTICE AND

 STOCK OPTION AGREEMENT 
 Prometheus Laboratories Inc., a California corporation (the “Company”), pursuant to its 2009 Equity Incentive Award Plan (the “Plan”), hereby grants to the holder listed below
(“Participant”), an option to purchase the number of shares of the Company’s common stock, par value $0.001 (“Stock”), set forth below (the “Option”). This Option is
subject to all of the terms and conditions set forth herein and in the Stock Option Agreement attached hereto as Exhibit A (the “Stock Option Agreement”) and the Plan, which are incorporated herein by reference. Unless
otherwise defined herein, the terms defined in the Plan shall have the same defined meanings in this Stock Option and the Stock Option Agreement. 
  

					
	Participant:	  	  
	  	
			
	Grant Date:	  	  
	  	
			
	Exercise Price per Share:	  	 $
	  	
			
	Total Exercise Price:	  	 $
	  	
			
	 Total Number of Shares
 Subject to the
Option:
	  	 shares
	  	
			
	Expiration Date:	  	  
	  	

  

			
	Type of Option:	  	 ̈    Incentive Stock Option         ̈    Non-Qualified Stock Option
		
	Vesting Schedule:	  	[To be specified in individual agreements]

 By his or her signature, the Participant agrees to be bound by the terms and conditions of the
Plan, the Stock Option Agreement and this Grant Notice. The Participant has reviewed the Stock Option Agreement, the Plan and this Grant Notice in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Grant
Notice and fully understands all provisions of this Grant Notice, the Stock Option Agreement and the Plan. Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions
arising under the Plan or relating to the Option. 
  

									
	PROMETHEUS LABORATORIES INC.	 		  	PARTICIPANT
					
	By:	 	  
	 		  	By:	 	  

	Print Name:	 	  
	 		  	Print Name:	 	  

	Title:	 	  
	 		  		 	
	Address:	 	  
	 		  	Address:	 	  

		 		 		  		 	  

 EXHIBIT A 
 TO STOCK OPTION GRANT NOTICE 
 STOCK OPTION AGREEMENT 
 Pursuant to the Stock Option Grant Notice (the “Grant Notice”) to which this Stock Option Agreement (this
“Agreement”) is attached, Prometheus Laboratories Inc., a California corporation (the “Company”), has granted to the Participant an Option under the Company’s 2009 Equity Incentive Award Plan (the
“Plan”) to purchase the number of shares of Stock indicated in the Grant Notice. 
 ARTICLE I 
 GENERAL 
 1.1 Defined Terms.
Capitalized terms not specifically defined herein shall have the meanings specified in the Plan and the Grant Notice. 
 1.2 Incorporation
of Terms of Plan. The Option is subject to the terms and conditions of the Plan which are incorporated herein by reference. In the event of any inconsistency between the Plan and this Agreement, the terms of the Plan shall control. 

ARTICLE II 
 GRANT OF OPTION 

 2.1 Grant of Option. In consideration of the Participant’s past and/or continued employment with or service to the Company or
a Parent or Subsidiary and for other good and valuable consideration, effective as of the Grant Date set forth in the Grant Notice (the “Grant Date”), the Company irrevocably grants to the Participant the Option to purchase
any part or all of an aggregate of the number of shares of Stock set forth in the Grant Notice, upon the terms and conditions set forth in the Plan, the Grant Notice and this Agreement. Unless designated as a Non-Qualified Stock Option in the Grant
Notice, the Option shall be an Incentive Stock Option to the maximum extent permitted by law. 
 2.2 Exercise Price. The exercise
price of the shares of Stock subject to the Option shall be as set forth in the Grant Notice, without commission or other charge; provided, however, that the price per share of the shares of Stock subject to the Option shall not be
less than 100% of the Fair Market Value of a share of Stock on the Grant Date. Notwithstanding the foregoing, if this Option is designated as an Incentive Stock Option and the Participant owns (within the meaning of Section 424(d) of the Code)
more than 10% of the total combined voting power of all classes of stock of the Company or any “subsidiary corporation” of the Company or any “parent corporation” of the Company (each within the meaning of Section 424 of the
Code), the price per share of the shares of Stock subject to the Option shall not be less than 110% of the Fair Market Value of a share of Stock on the Grant Date. 
 2.3 Consideration to the Company. In consideration of the grant of the Option by the Company, the Participant agrees to render faithful and efficient services to the Company or any Parent or Subsidiary. Nothing
in the Plan, the Grant Notice, or this Agreement shall confer upon the Participant any right to continue in the employ or service of the Company or any Parent or Subsidiary or shall interfere with or restrict in any way the rights of the Company and
any Parent or Subsidiary, which rights are hereby expressly reserved, to discharge or terminate the services of the Participant at any time for any reason whatsoever, with or without cause, except to the extent expressly provided otherwise in a
written agreement between the Company or a Parent or Subsidiary and the Participant. 
  

 A-1 

 ARTICLE III 
 PERIOD OF EXERCISABILITY 
 3.1 Commencement of Exercisability. 
 (a) Subject to Sections 3.2, 3.3 and 5.9, the Option shall become vested and exercisable in such amounts and at such times as are set forth in the Grant
Notice. 
 (b) No portion of the Option which has not become vested and exercisable at the date of the Participant’s Termination of
Service shall thereafter become vested and exercisable, except as may be otherwise provided by the Administrator or as set forth in a written agreement between the Company and the Participant. 
 3.2 Duration of Exercisability. The installments provided for in the vesting schedule set forth in the Grant Notice are cumulative. Each such
installment which becomes vested and exercisable pursuant to the vesting schedule set forth in the Grant Notice shall remain vested and exercisable until it becomes unexercisable under Section 3.3. 
 3.3 Expiration of Option. The Option may not be exercised to any extent by anyone after the first to occur of the following events: 
 (a) The expiration of ten years from the Grant Date; 
 (b) If this Option is designated as an Incentive Stock Option and the Participant owned (within the meaning of Section 424(d) of the Code), at the time the Option was granted, more than 10% of the total combined
voting power of all classes of stock of the Company or any “subsidiary corporation” of the Company or any “parent corporation” of the Company (each within the meaning of Section 424 of the Code), the expiration of five years
from the Grant Date; 
 (c) The expiration of three months from the date of the Participant’s Termination of Service, unless such
termination occurs by reason of the Participant’s death, Disability or Misconduct; provided, however, that if, during any part of such three month period, Participant’s option is not exercisable solely because of the
condition set forth in Section 4.5(b), Participant’s option shall not expire until the earlier of the Expiration Date or until it shall have been exercisable for an aggregate period of thirty days after Participant’s Termination of
Service; 
 (d) The expiration of eighteen months from the date of the Participant’s death if Participant dies prior to his or her
Termination of Service or within three months after his or her Termination of Service; 
 (e) The expiration of one year from the date of the
Participant’s Termination of Service by reason of the Participant’s Disability; or 
 (f) The date of Participant’s
Termination of Service as a result of Participant’s Misconduct. 
 If the Participant’s option is an Incentive Stock Option, note
that, to obtain the federal income tax advantages associated with an “incentive stock option,” the Code requires that at all times beginning on the date of grant of the Participant’s Option and ending on the day three months before
the date of Participant’s Option’s exercise, Participant must be an Employee of the Company or an affiliate, except in 

  

 A-2 

 
the event of Participant’s death or Disability. The Company has provided for extended exercisability of Participant’s Option under certain
circumstances for Participant’s benefit but cannot guarantee that Participant’s Option will necessarily be treated as an “incentive stock option” if Participant continues to be employed by or provide services to the Company or an
affiliate as a Consultant or Director after Participant’s employment terminates or if Participant otherwise exercises its options more than three months after the date Participant’s employment terminates. 
 3.4 Special Tax Consequences. The Participant acknowledges that, to the extent that the aggregate Fair Market Value (determined as of the time the
Option is granted) of all shares of Stock with respect to which Incentive Stock Options, including the Option, are exercisable for the first time by the Participant in any calendar year exceeds $100,000, the Option and such other options shall be
Non-Qualified Stock Options to the extent necessary to comply with the limitations imposed by Section 422(d) of the Code. The Participant further acknowledges that the rule set forth in the preceding sentence shall be applied by taking the
Option and other “incentive stock options” into account in the order in which they were granted, as determined under Section 422(d) of the Code and the Treasury Regulations thereunder. 
 ARTICLE IV 
 EXERCISE OF OPTION 

 4.1 Person Eligible to Exercise. Except as provided in Section 5.3, during the lifetime of the Participant, only the
Participant may exercise the Option or any portion thereof, unless it has been disposed of pursuant to a DRO. After the death of the Participant, any exercisable portion of the Option may, prior to the time when the Option becomes unexercisable
under Section 3.3, be exercised by the Participant’s personal representative or by any person empowered to do so under the deceased Participant’s will or under the then applicable laws of descent and distribution. 
 4.2 Partial Exercise. Any exercisable portion of the Option or the entire Option, if then wholly exercisable, may be exercised in whole or in part
at any time prior to the time when the Option or portion thereof becomes unexercisable under Section 3.3. 
 4.3 Manner of
Exercise. The Option, or any exercisable portion thereof, may be exercised solely by delivery to the Secretary of the Company (or any third party administrator or other person or entity designated by the Company) of all of the following prior to
the time when the Option or such portion thereof becomes unexercisable under Section 3.3: 
 (a) An Exercise Notice in writing signed by
the Participant or any other person then entitled to exercise the Option or portion thereof, stating that the Option or portion thereof is thereby exercised, such notice complying with all applicable rules established by the Administrator. Such
notice shall be substantially in the form attached as Exhibit B to the Grant Notice (or such other form as is prescribed by the Administrator); 
 (b) The receipt by the Company of full payment for the shares of Stock with respect to which the Option or portion thereof is exercised, including payment of any applicable withholding tax, which may be in one or more
of the forms of consideration permitted under Section 4.4; 
 (c) Any other written representations as may be required in the
Administrator’s reasonable discretion to evidence compliance with the Securities Act or any other applicable law, rule, or regulation; and 
  

 A-3 

 (d) In the event the Option or portion thereof shall be exercised pursuant to Section 4.1 by any
person or persons other than the Participant, appropriate proof of the right of such person or persons to exercise the Option. 
 Notwithstanding any of the foregoing, the Company shall have the right to specify all conditions of the manner of exercise, which conditions may vary by country and which may be subject to change from time to time. 
 4.4 Method of Payment. Payment of the exercise price and any applicable withholding tax shall be by any of the following, or a combination
thereof, at the election of the Participant, subject to Section 10.7 of the Plan: 
 (a) Cash; 
 (b) Check; 
 (c) Following the Public
Trading Date, delivery of a notice that the Participant has placed a market sell order with a broker with respect to shares of Stock then issuable upon exercise of the Option, and that the broker has been directed to pay a sufficient portion of the
net proceeds of the sale to the Company in satisfaction of the aggregate exercise price; provided, that payment of such proceeds is then made to the Company upon settlement of such sale; 
 (d) With the consent of the Administrator, by delivery of a full recourse promissory note on such terms and conditions as may be approved by the
Administrator; 
 (e) With the consent of the Administrator, surrender of other shares of Stock which (A) in the case of shares of Stock
acquired from the Company, have been owned by the Participant for more than six (6) months on the date of surrender (or such longer or shorter period as may be determined by the Administrator), and (B) have a Fair Market Value on the date
of surrender equal to the aggregate exercise price of the shares of Stock with respect to which the Option or portion thereof is being exercised; 
 (f) With the consent of the Administrator, surrendered shares of Stock issuable upon the exercise of the Option having a Fair Market Value on the date of exercise equal to the aggregate exercise price of the shares of Stock with respect to
which the Option or portion thereof is being exercised; or 
 (g) With the consent of the Administrator, property of any kind which
constitutes good and valuable consideration. 
 (h) Notwithstanding any other provision of the Plan or this Agreement, if Participant is a
Director or “executive officer” of the Company within the meaning of Section 13(k) of the Exchange Act, he or she shall not be permitted to make payment pursuant to this Section 4.4, or continue any extension of credit with
respect to such payment with a loan from the Company or a loan arranged by the Company, in violation of Section 13(k) of the Exchange Act. 
 4.5 Conditions to Issuance of Stock Certificates. The shares of Stock deliverable upon the exercise of the Option, or any portion thereof, may be either previously authorized but unissued shares of Stock or issued shares of Stock
which have then been reacquired by the Company. Such shares of Stock shall be fully paid and nonassessable. The Company shall not be required to issue or deliver any shares of Stock purchased upon the exercise of the Option or portion thereof prior
to fulfillment of all of the following conditions: 
 (a) The admission of such shares of Stock to listing on all stock exchanges on which
such Stock is then listed; 
  

 A-4 

 (b) The completion of any registration or other qualification of such shares of Stock under any state or
federal law or under rulings or regulations of the Securities and Exchange Commission or of any other governmental regulatory body, which 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 which the Administrator shall, in its absolute
discretion, determine to be necessary or advisable; 
 (d) The receipt by the Company of full payment for such shares of Stock, including
payment of any applicable withholding tax, which may be in one or more of the forms of consideration permitted under Section 4.4, subject to Section 10.7 of the Plan; and 
 (e) The lapse of such reasonable period of time following the exercise of the Option as the Administrator may from time to time establish for reasons of
administrative convenience. 
 4.6 Rights as Shareholder. The holder of the Option shall not be, nor have any of the rights or
privileges of, a shareholder of the Company in respect of any shares of Stock purchasable upon the exercise of any part of the Option unless and until such shares of Stock shall have been issued by the Company to such holder (as evidenced by the
appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company). No adjustment will be made for a dividend or other right for which the record date is prior to the date the shares of Stock are issued, except as
provided in Article 11 of the Plan. 
 ARTICLE V 
 OTHER PROVISIONS 
 5.1 Administration. The Administrator shall have the power to interpret the
Plan, the Grant Notice and this Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to interpret, amend or revoke any such rules. All actions taken and all
interpretations and determinations made by the Administrator in good faith shall be final and binding upon Participant, the Company and all other interested persons. No member of the Administrator or the Board shall be personally liable for any
action, determination or interpretation made in good faith with respect to the Plan, the Grant Notice, this Agreement or the Option. 
 5.2
Lock-Up Period. Participant hereby agrees that, if so requested by the Company or any representative of the underwriter(s) in connection with the first underwritten registration of the offering of any securities of the Company under the
Securities Act, Participant shall not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale, any shares of Stock or other
securities of the Company during such period as may be requested in writing by the underwriters and agreed to in writing by the Company (which period shall not be longer than one hundred eighty days) following the effective date of a registration
statement of the Company filed under the Securities Act. Participant further agrees to execute and deliver such other agreements as may be reasonably requested by the Company and the 

  

 A-5 

 
underwriter(s) that are consistent with the foregoing or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the
Company may impose stop-transfer instructions until the end of such period. 
 5.3 Option Generally Not Transferable. 
 (a) Subject to Section 5.3(c), the Option may not be sold, pledged, assigned or transferred in any manner other than by will or the laws of descent
and distribution, or, subject to the consent of the Administrator, pursuant to a DRO, unless and until the shares of Stock underlying the Option have been issued, and all restrictions applicable to such shares of Stock have lapsed. Neither the
Option nor any interest or right therein shall be liable for the debts, contracts or engagements of Participant or his or her successors in interest or shall be subject to disposition by transfer, alienation, anticipation, pledge, encumbrance,
assignment or any other means whether such disposition be voluntary or involuntary or by operation of law by judgment, levy, attachment, garnishment or any other legal or equitable proceedings (including bankruptcy), and any attempted disposition
thereof shall be null and void and of no effect, except to the extent that such disposition is permitted by the preceding sentence. 
 (b)
Unless transferred to a Permitted Transferee in accordance with Section 5.3(c), during the lifetime of Participant, only Participant may exercise the Option or any portion thereof, unless it has been disposed of pursuant to a DRO. After the
death of Participant, any exercisable portion of the Option may, prior to the time when the Option becomes unexercisable under Section 3.3, be exercised by Participant’s personal representative or by any person empowered to do so under the
deceased Participant’s will or under the then applicable laws of descent and distribution. 
 (c) Notwithstanding any other provision in
this Agreement, with the consent of the Administrator and to the extent the Option is designated as a Non-Qualified Stock Option, the Option may be transferred to, exercised by and paid to one or more Permitted Transferees, subject to the terms and
conditions set forth in Section 10.3 of the Plan. Subject to such conditions and procedures as the Administrator may require, a Permitted Transferee may exercise the Option or any portion thereof during the Participant’s lifetime.

 5.4 Adjustments. The Participant acknowledges that the Option is subject to modification and termination in certain events as
provided in this Agreement and Article 11 of the Plan. 
 5.5 Notices. Any notice to be given under the terms of this Agreement to the
Company shall be addressed to the Company in care of the Secretary of the Company at the address given beneath the signature of the Company’s authorized officer on the Grant Notice, and any notice to be given to Participant shall be addressed
to Participant at the address given beneath Participant’s signature on the Grant Notice. By a notice given pursuant to this Section 5.5, either party may hereafter designate a different address for notices to be given to that party. Any
notice which is required to be given to Participant shall, if Participant is then deceased, be given to the person entitled to exercise his or her Option pursuant to Section 4.1 by written notice under this Section 5.5. Any notice shall be
deemed duly given when sent via email or when sent by certified mail (return receipt requested) and deposited (with postage prepaid) in a post office or branch post office regularly maintained by the United States Postal Service. 
 5.6 Titles. Titles are provided herein for convenience only and are not to serve as a basis for interpretation or construction of this Agreement.

  

 A-6 

 5.7 Governing Law; Severability. The laws of the State of California shall govern the
interpretation, validity, administration, enforcement and performance of the terms of this Agreement regardless of the law that might be applied under principles of conflicts of laws. 
 5.8 Conformity to Securities Laws. The Participant acknowledges that the Plan, the Grant Notice and this Agreement are intended to conform to the
extent necessary with all provisions of the Securities Act and the Exchange Act and any and all regulations and rules promulgated by the Securities and Exchange Commission thereunder, and state securities laws and regulations. Notwithstanding
anything herein to the contrary, the Plan shall be administered, and the Option is granted and may be exercised, only in such a manner as to conform to such laws, rules and regulations. To the extent permitted by applicable law, the Plan, the Grant
Notice and this Agreement shall be deemed amended to the extent necessary to conform to such laws, rules and regulations. 
 5.9
Amendments, Suspension and Termination. To the extent permitted by the Plan, this Agreement may be wholly or partially amended or otherwise modified, suspended or terminated at any time or from time to time by the Administrator,
provided, that, except as may otherwise be provided by the Plan, no amendment, modification, suspension or termination of this Agreement shall adversely effect the Option in any material way without the prior written consent of the Participant.

 5.10 Successors and Assigns. The Company may assign any of its rights under this Agreement to single or multiple assignees, and
this Agreement shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth in Section 5.3, this Agreement shall be binding upon Participant and his or her heirs, executors,
administrators, successors and assigns. 
 5.11 Notification of Disposition. If this Option is designated as an Incentive Stock
Option, Participant shall give prompt notice to the Company of any disposition or other transfer of any shares of Stock acquired under this Agreement if such disposition or transfer is made (a) within two years from the Grant Date with respect
to such shares of Stock or (b) within one year after the transfer of such shares of Stock to the Participant. 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 Participant in such disposition or other transfer. 
 5.12 Limitations Applicable to
Section 16 Persons. Notwithstanding any other provision of the Plan or this Agreement, if Participant is subject to Section 16 of the Exchange Act, the Plan, the Option and this Agreement shall be subject to any additional limitations
set forth in any applicable exemptive rule under Section 16 of the Exchange Act (including any amendment to Rule 16b-3 of the Exchange Act) that are requirements for the application of such exemptive rule. To the extent permitted by applicable
law, this Agreement shall be deemed amended to the extent necessary to conform to such applicable exemptive rule. 
 5.13 Not a Contract
of Employment. Nothing in this Agreement, the Grant Notice, or the Plan shall confer upon the Participant any right to continue to serve as an employee or other service provider of the Company or any Parent or Subsidiary. 
 5.14 Entire Agreement. The Plan, the Grant Notice and this Agreement (including all exhibits thereto) constitute the entire agreement of the
parties and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject matter hereof. 
 5.15 Stockholder Approval. The Plan will be submitted for approval by the Company’s shareholders within twelve months before or after the date the Plan was initially adopted by the Board. 

  

 A-7 

 
The Option may not be exercised to any extent by anyone prior to the time when the Plan is approved by the shareholders, and if such approval has not been
obtained within twelve months after the date the Plan was initially adopted by the Board, the Option shall thereupon be canceled and become null and void. 
  

 A-8 

 EXHIBIT B 
 TO STOCK OPTION GRANT NOTICE 
 FORM OF EXERCISE NOTICE 
 Effective as of today,                     ,
             the undersigned (“Participant”) hereby elects to exercise Participant’s option to purchase
                     shares of the Stock (the “Shares”) of Prometheus Laboratories Inc. (the
“Company”) under and pursuant to the Prometheus Laboratories Inc. 2009 Equity Incentive Award Plan (the “Plan”) and the Stock Option Grant Notice and Stock Option Agreement dated
                    ,              (the “Option
Agreement”). Capitalized terms used herein without definition shall have the meanings given in the Option Agreement. 
  

					
	Grant Date:	  	  
	  	
			
	Number of Shares as to which Option is Exercised:	  	  
	  	
			
	Exercise Price per Share:	  	$                     	  	
			
	Total Exercise Price:	  	$                     	  	
			
	Certificate to be issued in name of:	  	  
	  	
		
	Cash Payment delivered herewith:	  	$                      (Representing the full Exercise Price for the Shares, as
well as any applicable withholding tax)

 Type of Option:
                     ̈    Incentive Stock
Option             ̈    Non-Qualified Stock Option 
 1. Representations of Participant. Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement. Participant agrees to abide by and be bound by their terms and
conditions. 
 2. Rights as Shareholder. Until the Shares are issued (as evidenced by the appropriate entry on the books of the
Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a shareholder shall exist with respect to Shares subject to the Option, notwithstanding the exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued, except as provided in Article 11 of the Plan. 
 Participant shall enjoy rights as a shareholder until such time as Participant disposes of the Shares or the Company and/or its assignee(s) exercises the Right of First Refusal hereunder. Upon such exercise,
Participant shall have no further rights as a holder of the Shares so purchased except the right to receive payment for the Shares so purchased in accordance with the provisions of this Agreement, and Participant shall forthwith cause the
certificate(s), if any issued, evidencing the Shares so purchased to be surrendered to the Company for transfer or cancellation. 
  

 B-1 

 3. Participant’s Rights to Transfer Shares. 
 (a) Prior to the Public Trading Date, Participant may not validly transfer (as hereinafter defined) any shares of Stock purchased on exercise of an
Option, or any interest in such shares, unless such transfer is made in compliance with the following provisions: 
 (i) Before there can be
a valid transfer of any shares or any interest therein, the record holder of the shares to be transferred (the “Offered Shares”) shall give written notice (by registered or certified mail) to the Company. Such notice shall
specify the identity of the proposed transferee, the cash price offered for the Offered Shares by the proposed transferee and the other terms and conditions of the proposed transfer. The date such notice is mailed shall be hereinafter referred to as
the “notice date” and the record holder of the Offered Shares shall be hereinafter referred to as the “Offeror.” If, from time to time, there is any stock dividend, stock split or other change in the
character or amount of any of the outstanding Stock of the corporation the Stock of which is subject to the provisions of the Option, then in such event any and all new, substituted or additional securities to which Participant is entitled by reason
of his or her ownership of the shares acquired upon exercise of the Option shall be immediately subject to the Company’s Right of First Refusal with the same force and effect as the shares subject to the Right of First Refusal immediately
before such event. 
 (ii) For a period of thirty (30) calendar days after the notice date, the Company shall have the option to
purchase all (but not less than all) of the Offered Shares at the purchase price and on the terms set forth in subsection 3(a)(iii) (“Right of First Refusal”). The Company may exercise its Right of First Refusal by
mailing (by registered or certified mail) written notice of exercise of its Right of First Refusal to the Offeror prior to the end of said thirty (30) days. 
 (iii) The price at which the Company may purchase the Offered Shares pursuant to the exercise of its Right of First Refusal shall be the price offered for the Offered Shares by the proposed transferee (as set forth in
the notice required under subsection 3(a)(i)). The Company’s notice of exercise of its Right of First Refusal shall be accompanied by full payment for the Offered Shares and, upon such payment by the Company, the Company shall acquire full
right, title and interest to all of the Offered Shares. Should the purchase price be payable in property other than cash, the Company shall have the right to pay the purchase price in cash in an amount equal to the value of such property, as
determined by the Administrator in its reasonable discretion. 
 (iv) If, and only if, the option given pursuant to subsection
3(a)(ii) is not exercised, the transfer proposed in the notice given pursuant to subsection 3(a)(i) may take place; provided, however, that such transfer must, in all respects, be exactly as proposed in said notice except
that such transfer may not take place either before the tenth (10th) calendar day after the expiration of said 30-day option exercise period or after the ninetieth (90th) calendar day after the expiration of said 30-day option exercise
period, and if such transfer has not taken place prior to said ninetieth (90th) day, such transfer may not take place without once again complying with subsection 3(a). Any such transfer must be effected in accordance with any applicable
securities laws and the proposed transferee must agree in writing that the provisions of the Plan, the Option Agreement and this Exercise Notice continue to apply to the shares in the hands of such proposed transferee. 
 (b) As used in this Section 3, the term “transfer” means any sale, encumbrance, pledge, gift or other form of disposition or
transfer of shares of the Company’s stock or any legal or equitable interest therein; provided, however, that the term “transfer” does not include a transfer of such shares or interests by will or by the applicable laws
of descent and distribution or a gift of such shares if the donee agrees to be bound by the provisions of the Plan, the Option Agreement and this Exercise Notice. 
  

 B-2 

 (c) None of the shares of the Company’s Stock purchased on exercise of the Option shall be
transferred on the Company’s books nor shall the Company recognize any such transfer of any such shares or any interest therein unless and until all applicable provisions of this Section 3 have been complied with in all respects. The
certificates of Stock or book entry evidencing shares of Stock purchased on exercise of the Option shall bear an appropriate legend referring to the transfer restrictions imposed by this Section 3. 
 (d) To ensure that shares subject to the Company’s Right of First Refusal will be available for repurchase by the Company, the Company may require
Participant to deposit the certificate(s) evidencing the shares that Participant purchases upon exercise of the Option with the Secretary of the Company or his or her agent. If the Company does not require such deposit as a condition of exercise of
Participant’s option, the Company reserves the right at any time to require Participant to so deposit the certificate(s). As soon as practicable after the expiration of the Company’s Right of First Refusal, the Secretary of the Company or
his or her agent shall deliver to Participant the shares and any other property no longer subject to such restriction. In the event the shares and any other property held in escrow are subject to the Company’s exercise of its Right of First
Refusal, the notices required to be given to Participant shall be given to the escrow agent, and any payment required to be given to Participant shall be given to the Secretary of the Company or his or her agent. Within thirty (30) days after
payment by the Company for the Offered Shares, the Secretary of the Company or his or her agent shall deliver the Offered Shares that the Company has repurchased to the Company and shall deliver the payment received from the Company to Participant.

 (e) To the extent provided in the Company’s bylaws as amended from time to time, the Company shall have the right to repurchase all
or any part of the shares of Stock Participant acquires pursuant to the exercise of an Option. 
 4. Tax Consultation. Participant
understands that Participant may suffer adverse tax consequences as a result of Participant’s purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant deems advisable in
connection with the purchase or disposition of the Shares and that Participant is not relying on the Company for any tax advice. 
 5.
Restrictive Legends and Stop-Transfer Orders. 
 (a) Legends. Participant understands and agrees that the Company shall cause
any certificates issued evidencing the Shares shall have the legends set forth below or legends substantially equivalent thereto, together with any other legends that may be required by state or federal securities laws: 
 THE SHARES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (“ACT”), NOR HAVE THEY BEEN REGISTERED OR
QUALIFIED UNDER THE SECURITIES LAWS OF ANY STATE. NO TRANSFER OF SUCH SECURITIES WILL BE PERMITTED UNLESS A REGISTRATION STATEMENT UNDER THE ACT IS IN EFFECT AS TO SUCH TRANSFER, THE TRANSFER IS MADE IN ACCORDANCE WITH RULE 144 UNDER THE ACT, OR IN
THE OPINION OF COUNSEL (WHICH MAY BE COUNSEL FOR THE COMPANY) REGISTRATION UNDER THE ACT IS UNNECESSARY IN ORDER FOR SUCH TRANSFER TO COMPLY WITH THE ACT AND WITH APPLICABLE STATE SECURITIES LAWS. 
  

 B-3 

 THE SHARES REPRESENTED BY THIS CERTIFICATE MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN
AGREEMENT BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY. SUCH TRANSFER RESTRICTIONS ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 (b) Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop
transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect in its own records. 
 (c) The Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of
the provisions of this Agreement or (ii) to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares shall have been so transferred. 
 6. Participant Representations. Participant hereby makes the following certifications and representations with respect to the Shares listed above:

 (a) Participant is aware of the Company’s business affairs and financial condition and has acquired sufficient information about the
Company to reach an informed and knowledgeable decision to acquire the Shares. Participant is acquiring these Shares for investment for Participant’s own account only and not with a view to, or for resale in connection with, any
“distribution” thereof within the meaning of the Securities Act. 
 (b) Participant acknowledges and understands that the Shares
constitute “restricted securities” under the Securities Act and have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of
Participant’s investment intent as expressed herein. Participant understands that the Shares must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration is available.
Participant further acknowledges and understands that the Company is under no obligation to register the Shares. Participant understands that the certificate evidencing the Shares will be imprinted with a legend which prohibits the transfer of the
Shares unless they are registered or such registration is not required in the opinion of counsel satisfactory to the Company and any other legend required under applicable state securities laws. 
 (c) Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in substance,
permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer
qualifies under Rule 701 at the time of the grant of the Option to Participant, the exercise will be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of Section 13 or
15(d) of the Exchange Act, ninety days thereafter (or such longer period as any market stand-off agreement may require) the securities exempt under Rule 701 may be resold, subject to the satisfaction of certain of the conditions specified by
Rule 144. 
  

 B-4 

 (d) In the event that the Company does not qualify under Rule 701 at the time of grant of the
Option, then the securities may be resold in certain limited circumstances subject to the provisions of Rule 144. 
 (e) Participant
further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied, registration under the Securities Act, compliance with Regulation A, or some other registration exemption will be required; and that,
notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and
otherwise than pursuant to Rules 144 or 701 will have a substantial burden of proof in establishing that an exemption from registration is available for such offers or sales, and that such persons and their respective brokers who participate in such
transactions do so at their own risk. Participant understands that no assurances can be given that any such other registration exemption will be available in such event. 
 7. Successors and Assigns. The Company may assign any of its rights under this Agreement to single or multiple assignees, and this Agreement shall inure to the benefit of the successors and assigns of the
Company. Subject to the restrictions on transfer herein set forth, this Agreement shall be binding upon Participant and his or her heirs, executors, administrators, successors and assigns. 
 8. Interpretation. Any dispute regarding the interpretation of this Agreement shall be submitted by Participant or by the Company forthwith to the
Administrator, which shall review such dispute at its next regular meeting. The resolution of such a dispute by the Administrator shall be final and binding on the Company and on Participant. 
 9. Governing Law; Severability. This Agreement shall be governed by and construed in accordance with the laws of the State of California,
excluding that body of law pertaining to conflicts of law. Should any provision of this Agreement be determined by a court of law to be illegal or unenforceable, the other provisions shall nevertheless remain effective and shall remain enforceable.

 10. Notices. Any notice required or permitted hereunder shall be given in accordance with the provisions set forth in
Section 5.5 of the Option Agreement. 
 11. Further Instruments. The parties agree to execute such further instruments and to
take such further action as may be reasonably necessary to carry out the purposes and intent of this Agreement. 
 12. Entire
Agreement. The Plan and Option Agreement are incorporated herein by reference. This Agreement, the Plan and the Option Agreement constitute the entire agreement of the parties and supersede in their entirety all prior undertakings and agreements
of the Company and Participant with respect to the subject matter hereof. 
  

									
	 ACCEPTED BY: 
 PROMETHEUS
LABORATORIES INC.
	 		 	 SUBMITTED BY
 PARTICIPANT:

					
	By:	 	  
	 		 	By:	 	  

	Print Name:	 	  
	 		 	Print Name:	 	  

	Title:	 	  
	 		 		 	
		 		 		 	Address:	 	  

		 		 		 		 	  

  

 B-5 

 CONSENT OF SPOUSE 
 I,                     , spouse of
                    , have read and approve the Option Agreement and this Exercise Notice between my spouse and Prometheus Laboratories Inc. In
consideration of granting of the right to my spouse to purchase shares of Prometheus Laboratories Inc. set forth in the Option Agreement and this Exercise Notice, I hereby appoint my spouse as my attorney-in-fact in respect to the exercise of any
rights under the Option Agreement and this Exercise Notice and agree to be bound by the provisions of the Plan, the Option Agreement and this Exercise Notice insofar as I may have any rights in said agreements or any shares issued pursuant thereto
under the community property laws or similar laws relating to marital property in effect in the state of our residence as of the date of the signing of the foregoing Exercise Notice. 
  

					
	Dated:                     ,
            	 		 	  

		 		 	Signature of Spouse

  

 B-62009 Employee Stock Purchase Plan

 Exhibit 10.9 
 PROMETHEUS LABORATORIES INC. 
 2009 EMPLOYEE STOCK PURCHASE PLAN 
 ARTICLE I 
 PURPOSE 

The purposes of this Prometheus Laboratories Inc. 2009 Employee Stock Purchase Plan (the “Plan”) are to assist Eligible
Employees of Prometheus Laboratories Inc., a California corporation (the “Company”) and its 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 Subsidiaries.

 All share numbers set forth in this Plan give effect to the reverse stock split, if any, implemented by the Company in connection with its
initial public offering. 
 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. 
 2.1 “Administrator” means the entity that conducts the general administration of the Plan as provided herein. The term “Administrator” shall refer to the Committee
unless the Board has assumed the authority for administration of the Plan generally as provided in Article 3. 
 2.2
“Board” shall mean the Board of Directors of the Company. 
 2.3 “Change in Control” means
and includes each of the following: 
 (a) A transaction or series of transactions (other than an offering of Stock to the general public
through a registration statement filed with the Securities and Exchange Commission) 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 Section 2.3(a) or
Section 2.3(c)) whose election by the Board or nomination for election by the Company’s shareholders 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 Section 2.3(c)(ii) as beneficially owning 50% or more of 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 discretion, to determine conclusively whether a Change in Control of the Company has occurred pursuant to the above definition, and the date of the occurrence of such Change in Control and any incidental matters relating thereto. 
 2.4 “Code” shall mean the Internal Revenue Code of 1986, as amended from time to time, and the regulations issued thereunder.

 2.5 “Committee” means the committee of the Board described in Article 3. 
 2.6 “Company” shall mean Prometheus Laboratories Inc., a California corporation. 
 2.7 “Compensation” of an Eligible Employee shall mean the gross base compensation received by such Eligible Employee as
compensation for services to the Company or any Designated Subsidiary, excluding overtime payments, sales commissions, incentive compensation, bonuses, expense reimbursements, fringe benefits and other special payments. 
 2.8 “Designated Subsidiary” shall mean any Subsidiary designated by the Administrator in accordance with Section 3.3(ii).

 2.9 “Eligible Employee” shall mean an Employee of the Company or a Designated Subsidiary: (i) 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 Stock or other stock of the Company, a Parent or a Subsidiary
(as determined under Section 423(b)(3) of the Code); (ii) whose customary employment is for more than twenty hours per week; and (iii) whose customary employment is for more than five months in any calendar year; provided,
however, that the Administrator may provide in an Offering Document that (x) Employees who are highly compensated employees within the meaning of Section 423(b)(4)(D) of the Code, and/or (y) Employees who have 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), shall not be eligible to 

  

 2 

 
participate in an Offering Period. For purposes of clause (i) above, 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 which an Employee may purchase under outstanding options shall be treated as stock owned by the Employee. 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 a Designated Subsidiary and meeting the requirements of Treasury Regulation Section 1.421-7(h)(2).

 In addition, “Eligible Employee” shall not include any Employee of a Designated Subsidiary who is a citizen or resident of a
foreign jurisdiction if the grant of a right to purchase Stock under the Plan to such Employee would be prohibited under the laws of such foreign jurisdiction or the grant of an option 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. 
 2.10 “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. 
 2.11 “Enrollment Date” shall mean the first day of each Offering Period. 
 2.12 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to time. 
 2.13 “Fair Market Value” means, as of any given date, the fair market value of a share of Stock on the date determined by such
methods or procedures as may be established from time to time by the Administrator. Unless otherwise determined by the Administrator, the Fair Market Value of a share of Stock as of any given date shall be (a) if Stock is traded on any
established stock exchange, the closing price of a share of Stock as reported in the Wall Street Journal (or such other source as the Administrator may deem reliable for such purposes) for such date, or if no sale occurred on such date, the
first trading day immediately prior to such date during which a sale occurred; or (b) if Stock is not traded on an exchange but is quoted on a national market or other quotation system, the last sales price on such date, or if no sales occurred
on such date, then on the date immediately prior to such date on which sales price are reported. 
 2.14 “Offering
Document” shall have the meaning given to such term in Section 5.1. 
 2.15 “Offering Period” shall
mean each Offering Period designated by the Administrator in the applicable Offering Document pursuant to Section 5.1. 
 2.16
“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. 
 2.17
“Participant” means any Eligible Employee who has executed a participation agreement and been granted rights to purchase Stock pursuant to the Plan. 
 2.18 “Plan” shall mean this Prometheus Laboratories Inc. 2009 Employee Stock Purchase Plan, as it may be amended from time to
time. 
  

 3 

 2.19 “Public Trading Date” shall mean the first date upon which the Company is
subject to the reporting requirements of Section 13 or 15(d)(2) of the Exchange Act. 
 2.20 “Purchase Date”
shall mean the last day of each Purchase Period. 
 2.21 “Purchase Period” shall mean each Purchase Period designated
by the Administrator in the applicable Offering Document pursuant to Section 5.1. A new Purchase Period will begin on the day immediately following a Purchase Date. 
 2.22 “Purchase Price” shall mean 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
of a share of Stock on the Enrollment 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 of Stock on the Enrollment Date or on the Purchase Date, whichever is lower); provided, further, that the Purchase Price may be
adjusted by the Administrator pursuant to Article 9; provided, further, that the Purchase Price shall not be less than the par value of a share of Stock. 
 2.23 “Securities Act” shall mean the Securities Act of 1933, as amended from time to time. 
 2.24 “Stock” means the common stock of the Company and such other securities of the Company that may be substituted for Stock pursuant to Article 9. 
 2.25 “Subsidiary” shall mean 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. 
 ARTICLE III 
 ADMINISTRATION 
 3.1 Administrator. 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”), which Committee shall consist solely of two or more members of the Board each of
whom is a “non-employee director” within the meaning of Rule 16b-3 which has been adopted by the Securities and Exchange Commission under the Exchange Act and which Committee is otherwise constituted to comply with applicable law.
Appointment of Committee members shall be effective upon acceptance of appointment. The Board may abolish the Committee at any time and revest in the Board the administration of the Plan. Committee members may resign at any time by delivering
written notice to the Board. Vacancies in the Committee may only be filled by the Board. 
  

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 3.2 Action by 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. 
 3.3 Authority of Administrator. The Administrator shall have the power, subject to, and within the limitations of, the express provisions of the
Plan: 
 (i) To determine when and how rights to purchase stock of the Company shall be granted and the provisions of each offering of such
rights (which need not be identical). 
 (ii) 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 shareholders of the Company. 
 (iii) 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. 
 (iv) To amend the Plan as provided in Article 10.

 (v) 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. 
 3.4 Decisions Binding. The Administrator’s interpretation of the Plan, any rights granted pursuant to the Plan, any participation agreement
and all decisions and determinations by the Administrator with respect to the Plan are final, binding, and conclusive on all parties. 
 ARTICLE IV 
 SHARES SUBJECT TO THE PLAN 
 4.1 Number of Shares. Subject to Article 9, the aggregate number of shares of Stock which may be issued pursuant to rights granted under the Plan shall be 600,000 shares. In addition to the foregoing, subject
to Article 9, commencing on the first January 1 following the Public Trading Date, and on each January 1 thereafter during the term of the Plan, the number of shares of Stock which shall be made available for sale under the Plan shall be
increased by that number of shares of Stock equal to the least of (a) 1% of the Company’s outstanding shares on such date, (b) 750,000 shares, or (c) a lesser amount determined by the Board. If any right granted under the Plan
shall for any reason terminate without having been exercised, the Stock not purchased under such right shall again become available for the Plan. Notwithstanding anything in this Section 4.1 to the contrary, the number of shares of Stock that
may be issued or transferred pursuant to rights granted under the Plan shall not exceed an aggregate of 8,100,000 shares, subject to Article 9. 
  

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 4.2 Stock Distributed. Any Stock distributed pursuant to the Plan may consist, in whole or in
part, of authorized and unissued Stock, treasury stock or Stock purchased on the open market. 
 ARTICLE V 
 OFFERING PERIODS; OFFERING DOCUMENTS; PURCHASE DATES 
 5.1 Offering Periods. The Administrator may from time to time grant or provide for the grant of rights to purchase Stock of the Company under the Plan to Eligible Employees during one or more periods (each, an
“Offering Period”) selected by the Administrator commencing on such dates (each, an “Enrollment Date”) 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 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 dates during an Offering Period (the “Purchase
Date(s)”) on which rights granted under the Plan shall be exercised and purchases of Stock 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. 
 5.2 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): 
 (i) the length of the Offering Period, which period
shall not exceed twenty-seven months; 
 (ii) the Enrollment Date for such Offering Period; 
 (iii) the Purchase Date(s) during such Offering Period; 
 (iv) 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 20,000 shares; 

(v) in connection with each Offering Period that contains more than one Purchase Date, the maximum aggregate number of shares which may be purchased
by any Eligible Employee on any given Purchase Date during the Offering Period; and 
 (vi) such other provisions as the Administrator
determines are appropriate, subject to the Plan. 
 ARTICLE VI 
 PARTICIPATION 
 6.1 Eligibility. Any Eligible Employee who shall be
employed by the Company or a Designated Subsidiary on the day immediately preceding 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
6 and the limitations imposed by Section 423(b) of the Code. 
  

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 6.2 Enrollment in Plan. Except as otherwise set forth in an Offering Document, an Eligible
Employee may become a Participant in the Plan for an Offering Period by delivering a participation agreement to the Company prior to the Enrollment Date for such Offering Period (or such other date specified in the Offering Document), in such form
as the Administrator provides. Each such 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. An Eligible Employee may designate any whole percentage of Compensation which is not less than 1% and not 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) as payroll deductions. The payroll deductions 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. A Participant may change the percentage of Compensation designated in his or her participation agreement, subject to the limits of this Section 6.2, or may suspend his or her payroll deductions,
or may resume payroll deductions pursuant to a new participation agreement, 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 during each Offering Period and/or Purchase Period in the applicable Offering Document. Any such change, suspension or resumption of payroll deductions shall be effective with the first full payroll period following five business
days after the Company’s receipt of the new participation 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, such Participant’s cumulative payroll deductions prior to the suspension shall remain in his or her account and shall not be paid to such Participant unless he or she withdraws from participation in the Plan pursuant to Article 8.
Except as otherwise set forth in an Offering Document, 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. 
 6.3 Payroll Deductions. Except as otherwise provided in the applicable Offering Document, 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 such authorization is applicable, unless sooner terminated by the Participant as provided in Article 9. 
 6.4 Effect of Enrollment. A Participant’s completion of a participation agreement will enroll such Participant in the Plan for each
successive Purchase Period and each subsequent Offering Period on the terms contained therein until the Participant either submits a new participation agreement, withdraws from participation under the Plan as provided in Article 8 or otherwise
becomes ineligible to participate in the Plan. 
 6.5 Limitation on Purchase of 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 which exceeds $25,000 of fair market value of such stock (determined as of the first day of the Offering Period during 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. 
  

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 6.6 Decrease or Suspension of Payroll Deductions. Notwithstanding the foregoing, to the extent
necessary to comply with Section 423(b)(8) of the Code and Section 6.5 or the other limitations set forth in this Plan, a Participant’s payroll deductions may be suspended by the Administrator at any time during an Offering Period.
The balance of the amount credited to the account of each Participant which has not been applied to the purchase of shares of Stock by reason of Section 423(b)(8) of the Code, Section 6.5 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. 
 6.7 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 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 shareholders of the Company. 
 ARTICLE VII 
 GRANT AND EXERCISE OF RIGHTS 
 7.1 Grant of Rights. On the Enrollment 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 of Stock specified under Section 5.2(iv), subject to the limits in Section 6.5, and shall have the right to buy, on each Purchase Date during such Offering Period (at the applicable Purchase
Price), such number of shares of the Company’s Stock as is determined by dividing (a) such Participant’s payroll deductions accumulated prior to such Purchase Date and retained in the Participant’s account as of the Purchase
Date, by (b) the applicable Purchase Price. The right shall expire on the last day of the Offering Period. 
 7.2 Exercise of
Rights. On each Purchase Date, each Participant’s accumulated payroll deductions and any other additional payments specifically provided for in the applicable Offering Document will be applied to the purchase of whole shares of Stock of the
Company, 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 of Stock remaining after the purchase of whole shares of Stock upon exercise of purchase right will be credited to such Participant’s account and carried
forward and applied toward the purchase of whole shares of Stock for the next following Offering Period. Shares issued pursuant to the Plan may be evidenced in such manner as the Committee may determine and may be issued in certificated form or
issued pursuant to book-entry procedures. 
 7.3 Pro Rata Allocation of Shares. If the Administrator determines that, on a given
Purchase Date, the number of shares of Stock with respect to which rights are to be exercised may exceed (i) the number of shares of Stock that were available for issuance under the Plan on the Enrollment Date of the applicable Offering Period,
or (ii) the number of shares of Stock 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 of Stock available for
purchase on such Enrollment Date or Purchase 

  

 8 

 
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 Stock are to be exercised pursuant to this Article 7 on such Purchase Date, and shall either (x) continue all Offering Periods then in effect, or (y) terminate any or all Offering Periods then in effect pursuant
to Article 10. 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 Company’s shareholders subsequent to such Enrollment Date. The balance of the amount credited to the account of each Participant which has not been applied to the purchase of shares of Stock shall be paid to such Participant in
one lump sum in cash as soon as reasonably practicable after the Purchase Date. 
 7.4 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 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, which arise upon the exercise of the right or the disposition of the 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 Stock by the Participant. 
 7.5 Conditions to Issuance of Stock. The Company shall not be required to issue or deliver any certificate or certificates for, or make any book
entries evidencing, shares of Stock 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 Stock is then listed; and 
 (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, which the Administrator shall, in its absolute
discretion, deem necessary or advisable; and 
 (c) The obtaining of any approval or other clearance from any state or federal governmental
agency which the Administrator shall, in its absolute discretion, determine to be necessary or advisable; and 
 (d) The payment to the
Company of all amounts which 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 VIII 
 WITHDRAWAL; TERMINATION OF EMPLOYMENT OR ELIGIBILITY

 8.1 Withdrawal. A Participant may withdraw all but not less than all of the payroll deductions 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 Administrator. All of the Participant’s payroll deductions credited to his or her account during the
Offering Period shall be paid to such Participant as soon as reasonably practicable after receipt of notice of withdrawal and such 

  

 9 

 
Participant’s rights for the Offering Period shall be automatically terminated, and no further payroll deductions for the purchase of shares shall be
made 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 delivers to the Company a new participation agreement.

 8.2 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 which may hereafter be adopted by the Company or a Designated Subsidiary or in subsequent Offering Periods which commence after the termination of the Offering Period from which the Participant
withdraws. 
 8.3 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 8 and the payroll deductions credited to such Participant’s account 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 13.4, as soon as reasonably practicable and such Participant’s rights for the Offering Period shall be automatically terminated. 
 ARTICLE IX 
 ADJUSTMENTS UPON CHANGES IN STOCK 
 9.1 Changes in Capitalization. Subject to Section 9.3, in the event of any stock dividend, stock split, combination or exchange of shares,
merger, consolidation, spin-off, recapitalization, distribution of Company assets to shareholders (other than normal cash dividends), or any other corporate event affecting the Stock or the share price of the Stock, the Administrator may make such
proportionate adjustments, if any, as the Administrator in its discretion may deem appropriate to reflect such change with respect to (i) the aggregate number and type of shares of Stock (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 5.2 on the maximum number of shares of Stock that may be purchased);
(ii) the class(es) and number of shares and price per share of Stock subject to outstanding rights; and (iii) the Purchase Price with respect to any outstanding rights. 
 9.2 Other Adjustments. Subject to Section 9.3, in the event of any transaction or event described in Section 9.1 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 laws, regulations
or accounting principles, and 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, the Administrator, in its sole discretion and on such terms and conditions as it deems appropriate, is hereby
authorized to take any one or more of the following actions: 
 (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 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; and 
  

 10 

 (d) To make adjustments in the number and type of shares of Stock (or other securities or property)
subject to outstanding rights under the Plan and/or in the terms and conditions of outstanding rights and rights which may be granted in the future; 
 (d) To provide that Participants’ accumulated payroll deductions may be used to purchase 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) terminated; and 
 (e) To provide that all outstanding rights shall terminate
without being exercised. 
 9.3 No Adjustment Under Certain Circumstances. No adjustment or action described in this Article 9 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. 
 9.4 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 of Stock subject to an Award or the grant or exercise price of any Award. 
 ARTICLE X 
 AMENDMENT, MODIFICATION AND TERMINATION 
 10.1 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 by a vote of the holders of the outstanding shares of the Company’s capital stock entitled to vote shall be required to amend the Plan to: (a) change the aggregate number or type of shares that may
be sold pursuant to rights under the Plan under Section 4.1 (other than any adjustment as provided by Article 9); (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. 
 10.2 Rights Previously Granted. Except as provided in Article 9 or this Article 10, no termination, amendment or modification may make any change
in any right theretofore granted which adversely affects the rights of any Participant without the consent of such Participant, provided that an Offering Period may be terminated, amended or modified by the Administrator if the Administrator
determines that the termination of the Offering Period or the Plan is in the best interests of the Company and its shareholders. 
 10.3
Certain Changes to Plan. Without shareholder 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 the Offering Periods, limit the frequency and/or number of changes in the amount withheld during an Offering Period, establish the exchange ratio applicable to amounts withheld in a currency other than U.S. dollars, permit payroll
withholding in 

  

 11 

 
excess of the amount designated by a Participant in order to adjust for delays or mistakes in the Company’s processing of properly completed withholding
elections, establish reasonable waiting and adjustment periods and/or accounting and crediting procedures to ensure that amounts applied toward the purchase of 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 advisable which are consistent with the Plan. 
 ARTICLE XI 
 TERM OF PLAN 
 The Plan shall be effective on the day prior to the Public Trading Date (the “Effective Date”). The effectiveness of the Plan
shall be subject to approval of the Plan by the shareholders of the Company prior to the Effective Date. No right may be granted under the Plan prior to such shareholder approval. The Plan shall be in effect until the tenth anniversary of the
Effective Date, unless sooner terminated under Article 10. No rights may be granted under the Plan during any period of suspension of the Plan or after termination of the Plan. 
 ARTICLE XII 
 MISCELLANEOUS 
 12.1 Restriction upon Assignment. A right granted under the Plan shall not be transferable other than by will or the 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 Shareholder. With respect to shares of Stock subject to a right granted under the Plan, a Participant shall not be deemed
to be a shareholder of the Company, and the Participant shall not have any of the rights or privileges of a shareholder, 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. 
 12.3 Interest. No interest shall accrue on the payroll deductions or lump sum
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 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. 
  

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 (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 6.7, all Eligible Employees of the Company or any Designated Subsidiary 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 6.7, 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 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. 
 12.8 Reports. Statements of account shall be given to participating Employees at least annually, which statements shall
set forth the amounts of payroll deductions, 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 to 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 of stock purchased upon exercise of a right under the Plan if
such disposition or transfer is made: (a) within two years from the Enrollment 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 validity and enforceability of this Plan shall be governed by and construed in accordance with the laws of the State of
California without regard to otherwise governing principles of conflicts of law. 
  

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