Document:

2005 Stock Incentive Plan

 Exhibit 10.7 
 THEROX, INC. 
 2005 STOCK INCENTIVE PLAN 
 This 2005 STOCK INCENTIVE PLAN (the “Plan”) is hereby established by THEROX, INC., a
Delaware corporation (the “Company”), and adopted by its Board of Directors as of the 7th day of July, 2005 (the “Effective
Date”). 
 ARTICLE 1. 
 PURPOSES OF THE PLAN 
 1.1 Purposes. The purposes of the Plan are (a) to enhance the Company’s ability to
attract and retain the services of qualified employees, officers and directors (including non-employee officers and directors), and consultants and other service providers upon whose judgment, initiative and efforts the successful conduct and
development of the Company’s business largely depends, and (b) to provide additional incentives to such persons or entities to devote their utmost effort and skill to the advancement and betterment of the Company, by providing them an
opportunity to participate in the ownership of the Company and thereby have an interest in the success and increased value of the Company. 
 ARTICLE 2. 
 DEFINITIONS 
 For purposes of this Plan, the following terms shall have the meanings indicated: 
 2.1
Administrator. “Administrator” means the Board or, if the Board delegates responsibility for any matter to the Committee, the term Administrator shall mean the Committee. 
 2.2 Affiliated Company. “Affiliated Company” means any “parent corporation” or “subsidiary corporation” of the
Company, whether now existing or hereafter created or acquired, as those terms are defined in Sections 424(e) and 424(f) of the Code, respectively. 
 2.3 Board. “Board” means the Board of Directors of the Company. 
 2.4 Change in Control. “Change in
Control” shall mean (i) the acquisition, directly or indirectly, in one transaction or a series of related transactions, by any person or group (within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as
amended) of the beneficial ownership of securities of the Company possessing more than fifty percent (50%) of the total combined voting power of all outstanding securities of the Company; (ii) a merger or consolidation in which the Company
is not the surviving entity, except for a transaction in which the holders of the outstanding voting securities of the Company immediately prior to such merger or consolidation hold, in the aggregate, securities possessing more than fifty percent
(50%) of the total combined voting power of all outstanding voting securities of the surviving entity immediately after such merger or consolidation; (iii) a reverse merger in which the Company is the surviving entity but in which
securities possessing more than fifty percent (50%) of the total combined voting power of all outstanding voting securities of the Company are transferred to or acquired by a person or persons different from the persons holding those securities
immediately prior to such merger; (iv) the sale, transfer or other disposition (in one transaction or a series of related transactions) of all or substantially all of the assets of the Company; or (v) the approval by the stockholders of a
plan or proposal for the liquidation or dissolution of the Company. 

 2.5 Code. “Code” means the Internal Revenue Code of 1986, as amended from time to time.

 2.6 Committee. “Committee” means a committee of two or more members of the Board appointed to administer the Plan, as set
forth in Section 7.1 hereof. 
 2.7 Common Stock. “Common Stock” means the Common Stock of the Company, subject to
adjustment pursuant to Section 4.3 hereof. 
 2.8 Consultant. “Consultant” means any consultant or advisor if:
(i) the consultant or advisor renders bona fide services to the Company or any Affiliated Company; (ii) the services rendered by the consultant or advisor are not in connection with the offer or sale of securities in a capital-raising
transaction and do not directly or indirectly promote or maintain a market for the Company’s securities; and (iii) the consultant or advisor is a natural person who has contracted directly with the Company or any Affiliated Company to
render such services. 
 2.9 Covered Employee. “Covered Employee” means the chief executive officer of the Company (or the
individual acting in such capacity) and the four (4) other individuals that are the highest compensated officers of the Company for the relevant taxable year for whom total compensation is required to be reported to stockholders under the
Exchange Act. Provisions in this Plan making reference to a Covered Employee shall apply only at such time that a Company security is Publicly Traded. 
 2.10 Disability. “Disability” means permanent and total disability as defined in Section 22(e)(3) of the Code. The Administrator’s determination of a Disability or the absence thereof shall
be conclusive and binding on all interested parties. 
 2.11 Effective Date. “Effective Date” means the date on which the
Plan is adopted by the Board, as set forth on the first page hereof. 
 2.12 Exchange Act. “Exchange Act” means the
Securities and Exchange Act of 1934, as amended. 
 2.13 Exercise Price. “Exercise Price” means the purchase price per share
of Common Stock payable upon exercise of an Option. 
 2.14 Fair Market Value. “Fair Market Value” on any given date means
the value of one share of Common Stock, determined as follows: 
 (a) If the Common Stock is then listed or admitted to
trading on a NASDAQ market system or a stock exchange which reports closing sale prices, the Fair Market Value shall be the closing sale price on the date of valuation on such NASDAQ market system or principal stock exchange on which the Common
Stock is then listed or admitted to trading, or, if no closing sale price is quoted on such day, then the Fair Market Value shall be the closing sale price of the Common Stock on such NASDAQ market system or such exchange on the next preceding day
for which a closing sale price is reported. 
  

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 (b) If the Common Stock is not then listed or admitted to trading on a NASDAQ
market system or a stock exchange which reports closing sale prices, the Fair Market Value shall be the average of the closing bid and asked prices of the Common Stock in the over-the-counter market on the date of valuation. 
 (c) If neither (a) nor (b) is applicable as of the date of valuation, then the Fair Market Value shall be determined by
the Administrator in good faith using any reasonable method of evaluation, which determination shall be conclusive and binding on all interested parties. 
 2.15 Incentive Option. “Incentive Option” means any Option designated and qualified as an “incentive stock option” as defined in Section 422 of the Code. 
 2.16 Incentive Option Agreement. “Incentive Option Agreement” means an Option Agreement with respect to an Incentive Option. 

2.17 NASD Dealer. “NASD Dealer” means a broker-dealer that is a member of the National Association of Securities Dealers, Inc.

 2.18 Nonqualified Option. “Nonqualified Option” means any Option that is not an Incentive Option. To the extent that any
Option designated as an Incentive Option fails in whole or in part to qualify as an Incentive Option, including, without limitation, for failure to meet the limitations applicable to a 10% Shareholder or because it exceeds the annual limit provided
for in Section 5.6 below, it shall to that extent constitute a Nonqualified Option. 
 2.19 Nonqualified Option Agreement.
“Nonqualified Option Agreement” means an Option Agreement with respect to a Nonqualified Option. 
 2.20 Option.
“Option” means any option to purchase Common Stock granted pursuant to the Plan. 
 2.21 Option Agreement. “Option
Agreement” means the written agreement entered into between the Company and the Optionee with respect to an Option granted under the Plan. 
 2.22 Optionee. “Optionee” means a Participant who holds an Option. 
 2.23 Participant.
“Participant” means an individual or entity who holds an Option or Restricted Stock under the Plan. 
 2.24 Publicly Traded.
“Publicly Traded” means any security of a company that is listed (or approved for listing upon notice of issuance) on any securities exchange or designated (or approved for designation upon notice of issuance) as a national market security
on an interdealer quotation system. 
 2.25 Purchase Price. “Purchase Price” means the purchase price per share of
Restricted Stock. 
 2.26 Restricted Stock. “Restricted Stock” means shares of Common Stock issued pursuant to Article 6
hereof, subject to any restrictions and conditions as are established pursuant to such Article 6. 
  

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 2.27 Service Provider. “Service Provider” means a Consultant or other natural person the
Administrator authorizes to become a Participant in the Plan and who provides services to (i) the Company, (ii) an Affiliated Company, or (iii) any other business venture designated by the Administrator in which the Company (or any
entity that is a successor to the Company) or an Affiliated Company has a significant ownership interest. 
 2.28 Stock Purchase
Agreement. “Stock Purchase Agreement” means the written agreement entered into between the Company and a Participant with respect to the purchase of Restricted Stock under the Plan. 
 2.29 10% Shareholder. “10% Shareholder” means a person who, as of a relevant date, owns or is deemed to own (by reason of the
attribution rules applicable under Section 424(d) of the Code) stock possessing more than 10% of the total combined voting power of all classes of stock of the Company or of an Affiliated Company. 
 ARTICLE 3. 
 ELIGIBILITY

 3.1 Incentive Options. Only employees of the Company or of an Affiliated Company (including officers of the Company and members
of the Board if they are employees of the Company or of an Affiliated Company) are eligible to receive Incentive Options under the Plan. 
 3.2 Nonqualified Options and Restricted Stock. Employees of the Company or of an Affiliated Company, officers of the Company and members of the Board (whether or not employed by the Company or an Affiliated Company), and Service
Providers are eligible to receive Nonqualified Options or acquire Restricted Stock under the Plan. 
 3.3 Section 162(m)
Limitation. Subject to the provisions of Section 4.3, no employee of the Company or of an Affiliated Company shall be eligible to be granted Options covering more than 500,000 shares of Common Stock during any calendar year. The foregoing
shall not apply, however, until the first date upon which any security of the Company is Publicly Traded, and following the date that any security is Publicly Traded, this Section 3.3 shall not apply until such time as required by
Section 162(m) of the Code and the rules and regulations thereunder. 
 ARTICLE 4. 
 PLAN SHARES 
 4.1 Shares Subject to
the Plan. A total of 22,500,000 shares of Common Stock may be issued under the Plan, subject to adjustment as to the number and kind of shares pursuant to Section 4.3 hereof. For purposes of this limitation, in the event that (a) all
or any portion of any Option or Restricted Stock granted or offered under the Plan can no longer under any circumstances be exercised, or (b) any shares of Common Stock are reacquired by the Company which were initially the subject of an
Incentive Option Agreement, Nonqualified Option Agreement or Stock Purchase Agreement, the shares of Common Stock allocable to the unexercised portion of such Option or such Stock Purchase Agreement, or the shares so reacquired at the original
Purchase Price, shall again be available for grant or issuance under the Plan. 
  

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 4.2 Maximum Aggregate Shares Available for Incentive Options. No more than 22,500,000 of the
shares subject to the Plan may be covered by Incentive Options granted under this Plan. 
 4.3 Changes in Capital Structure. In the
event that the outstanding shares of Common Stock are hereafter increased or decreased or changed into or exchanged for a different number or kind of shares or other securities of the Company by reason of a recapitalization, stock split, reverse
stock split, combination of shares, reclassification, stock dividend, or other change in the capital structure of the Company, then appropriate adjustments shall be automatically made to the aggregate number and kind of shares subject to this Plan,
the number and kind of shares and the price per share subject to outstanding Option Agreements and Stock Purchase Agreements and the limit on the number of shares under Section 3.3, all in order to preserve, as nearly as practical, but not to
increase, the benefits to Participants. 
 ARTICLE 5. 
 OPTIONS 
 5.1 Option Agreement. Each Option granted pursuant to this Plan shall be evidenced
by an Option Agreement that shall specify the number of shares subject thereto, the Exercise Price per share, and whether the Option is an Incentive Option or Nonqualified Option. As soon as is practical following the grant of an Option, an Option
Agreement shall be duly executed and delivered by or on behalf of the Company to the Optionee to whom such Option was granted. Each Option Agreement shall be in such form and contain such additional terms and conditions, not inconsistent with the
provisions of this Plan, as the Administrator shall, from time to time, deem desirable, including, without limitation, the imposition of any rights of first refusal and resale obligations upon any shares of Common Stock acquired pursuant to an
Option Agreement. Each Option Agreement may be different from each other Option Agreement. 
 5.2 Exercise Price. The Exercise Price
per share of Common Stock covered by each Option shall be determined by the Administrator, subject to the following: (a) the Exercise Price of an Incentive Option shall not be less than 100% of Fair Market Value on the date the Incentive Option
is granted, (b) the Exercise Price for Nonqualified Options shall not be less than 100% of Fair Market Value at the time the Option is granted, and (c) if the person to whom an Option is granted is a 10% Shareholder on the date of grant,
the Exercise Price shall not be less than 110% of Fair Market Value on the date the Option is granted. However, an Option may be granted with an exercise price lower than that set forth in the preceding sentence if such Option is granted pursuant to
an assumption or substitution for another option in a manner satisfying the provisions of Section 424 of the Code. 
 5.3 Payment of
Exercise Price. Payment of the Exercise Price shall be made upon exercise of an Option and may be made, in the discretion of the Administrator, subject to any legal restrictions, by: (a) cash; (b) check; (c) the surrender of
shares of Common Stock acquired pursuant to the exercise of an Option (provided that shares acquired pursuant to the exercise of options granted by the Company must have been held by the Optionee for the requisite period necessary to avoid a charge
to the Company’s earnings for financial reporting purposes), which surrendered shares shall be valued at Fair Market Value as of the date of such exercise; (d) the Optionee’s promissory note in a form and on terms acceptable to the
Administrator, provided that an amount equal to at least the aggregate par value of the shares purchased upon exercise of an Option shall be paid in such other 

  

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form of consideration permitted under the Delaware General Corporation Law; (e) the cancellation of indebtedness of the Company to the Optionee;
(f) the waiver of compensation due or accrued to the Optionee for services rendered; (g) provided that a public market for the Common Stock exists, a “same day sale” commitment from the Optionee and an NASD Dealer whereby the
Optionee irrevocably elects to exercise the Option and to sell a portion of the shares so purchased to pay for the Exercise Price and whereby the NASD Dealer irrevocably commits upon receipt of such shares to forward the Exercise Price directly to
the Company; (h) provided that a public market for the Common Stock exists, a “margin” commitment from the Optionee and an NASD Dealer whereby the Optionee irrevocably elects to exercise the Option and to pledge the shares so
purchased to the NASD Dealer in a margin account as security for a loan from the NASD Dealer in the amount of the Exercise Price, and whereby the NASD Dealer irrevocably commits upon receipt of such shares to forward the Exercise Price directly to
the Company; or (i) any combination of the foregoing methods of payment or any other consideration or method of payment as shall be permitted by applicable corporate law. 
 5.4 Term and Termination of Options. The term and provisions for termination of each Option shall be as fixed by the Administrator, but no Option
may be exercisable more than ten (10) years after the date it is granted. An Incentive Option granted to a person who is a 10% Shareholder on the date of grant shall not be exercisable more than five (5) years after the date it is granted.

 5.5 Vesting and Exercise of Options. Each Option shall vest and become exercisable in one or more installments at such time or
times and subject to such conditions, including without limitation the achievement of specified performance goals or objectives, as shall be determined by the Administrator. An Option granted to an employee who is not an officer, a director or
Consultant of the Company must vest at a rate of at least 20% per year over a period of five years from the date of grant, subject to reasonable conditions such as continued employment. Notwithstanding the foregoing, to the extent required by
applicable law, each Option shall provide that the Optionee shall have the right to exercise the vested portion of any Option held at termination for at least 30 days following termination for any reason, and that the Optionee shall have the right
to exercise the Option for at least six months if such termination was due to the death or Disability of the Optionee. 
 5.6 Annual Limit
on Incentive Options. To the extent required for “incentive stock option” treatment under Section 422 of the Code, the aggregate Fair Market Value (determined as of the time of grant) of the Common Stock shall not, with respect to
which Incentive Options granted under this Plan and any other plan of the Company or any Affiliated Company become exercisable for the first time by an Optionee during any calendar year, exceed $100,000. 
 5.7 Nontransferability of Options. No Option shall be assignable or transferable except by will or the laws of descent and distribution, and
during the life of the Optionee shall be exercisable only by such Optionee. 
 5.8 Rights as Stockholder. An Optionee or permitted
transferee of an Option shall have no rights or privileges as a stockholder with respect to any shares covered by an Option until such Option has been duly exercised and certificates representing shares purchased upon such exercise have been issued
to such person. 
  

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 5.9 Unvested Shares. The Administrator shall have the discretion to grant Options which are
exercisable for unvested shares of Common Stock. Should the Optionee cease being an employee, a Service Provider, an officer, director or Consultant of the Company while owning such unvested shares, the Company shall have the right to repurchase, at
the exercise price paid per share, any or all of those unvested shares. The terms upon which such repurchase right shall be exercisable (including the period and procedure for exercise and the appropriate vesting schedule for the purchased shares)
shall be established by the Administrator and set forth in the document evidencing such repurchase right. The Administrator may not impose a vesting schedule upon any Option grant or the shares of Common Stock subject to that Option which is more
restrictive than twenty percent (20%) per year vesting, with the initial vesting to occur not later than one (1) year after the Option grant date. However, such limitation shall not be applicable to any Option grants made to individuals
who are officers, directors or Consultants of the Company. 
 ARTICLE 6. 
 RESTRICTED STOCK 
 6.1 Issuance and Sale of Restricted Stock. The
Administrator shall have the right to issue shares of Common Stock subject to such terms, restrictions and conditions as the Administrator may determine at the time of grant (“Restricted Stock”). Such conditions may include, but are not
limited to, continued employment or the achievement of specified performance goals or objectives. The Purchase Price of Restricted Stock shall be determined by the Administrator, provided that (a) the Purchase Price shall not be less than 85%
of Fair Market Value of the stock on the date the Restricted Stock is granted or at the time the purchase is consummated, or (b) if the person to whom a right to purchase Restricted Stock is granted is a 10% Shareholder on the date of grant,
the Purchase Price shall not be less than 100% of Fair Market Value of the stock on the date the Restricted Stock is granted or at the time the purchase is consummated. 
 6.2 Restricted Stock Purchase Agreements. A Participant shall have no rights with respect to the shares of Restricted Stock covered by a Stock Purchase Agreement until the Participant has paid the full Purchase
Price to the Company in the manner set forth in Section 6.3 hereof and has executed and delivered to the Company the Stock Purchase Agreement. Each Stock Purchase Agreement shall be in such form, and shall set forth the Purchase Price and such
other terms, conditions and restrictions of the Restricted Stock, not inconsistent with the provisions of this Plan, as the Administrator shall, from time to time, deem desirable. Each Stock Purchase Agreement may be different from each other Stock
Purchase Agreement. 
 6.3 Payment of Purchase Price. Subject to any legal restrictions, payment of the Purchase Price may be made, in
the discretion of the Administrator, by: (a) cash; (b) check; (c) the surrender of shares of Common Stock owned by the Participant that have been held by the Participant for the requisite period necessary to avoid a charge to the
Company’s earnings for financial reporting purposes, which surrendered shares shall be valued at Fair Market Value as of the date of such acceptance; (d) the Participant’s promissory note in a form and on terms acceptable to the
Administrator, provided that an amount equal to at least the aggregate par value of the shares purchased pursuant to a Stock Purchase Agreement shall be paid in such other form of consideration permitted under the Delaware General Corporation Law;
(e) the cancellation of indebtedness of the Company to the Participant; (f) the waiver of compensation due or accrued to the Participant for services rendered; or (g) any combination of the foregoing methods of payment or any other
consideration or method of payment as shall be permitted by applicable corporate law. 
  

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 6.4 Rights as a Stockholder. Upon complying with the provisions of Section 6.2 hereof, a
Participant shall have the rights of a stockholder with respect to the Restricted Stock purchased pursuant to a Stock Purchase Agreement, including voting and dividend rights, subject to the terms, restrictions and conditions as are set forth in
such Stock Purchase Agreement. Unless the Administrator shall determine otherwise, certificates evidencing shares of Restricted Stock shall remain in the possession of the Company until such shares have vested in accordance with the terms of the
Stock Purchase Agreement. 
 6.5 Restrictions. Shares of Restricted Stock may not be sold, assigned, transferred, pledged or otherwise
encumbered or disposed of except as specifically provided in the Stock Purchase Agreement. In the event of termination of a Participant’s employment, service as a director of the Company or Service Provider status for any reason whatsoever
(including death or disability), the Stock Purchase Agreement may provide, in the discretion of the Administrator, that the Company shall have the right, exercisable at the discretion of the Administrator, to repurchase (i) at the original
Purchase Price, any shares of Restricted Stock which have not vested as of the date of termination (provided that the right to repurchase at the original Purchase Price shall lapse at the rate of at least 20% per year over five (5) years
from the date of the Stock Purchase Agreement for Participants other than directors, officers and consultants of the Company), and (ii) at Fair Market Value, any shares of Restricted Stock which have vested as of such date, on such terms as may
be provided in the Stock Purchase Agreement. 
 In any event, the right to repurchase must be exercised within sixty (60) days of the
termination of Participant’s Continuous Service and may be paid by the Company or its assignee, by cash, check, or cancellation of indebtedness within thirty (30) days of the expiration of the right to exercise. 
 6.6 Vesting of Restricted Stock. The Stock Purchase Agreement shall specify the date or dates, the performance goals or objectives which must be
achieved, and any other conditions on which the Restricted Stock may vest. A Stock Purchase Agreement awarded to an employee who is not an officer, director, or Consultant of the Company must vest at a rate of at least 20% per year over a
period of five years from the date of grant, subject to reasonable conditions such as continued employment. 
 6.7 Dividends. If
payment for shares of Restricted Stock is made by promissory note, any cash dividends paid with respect to the Restricted Stock may be applied, in the discretion of the Administrator, to repayment of such note. 
 ARTICLE 7. 
 ADMINISTRATION OF THE
PLAN 
 7.1 Administrator. Authority to control and manage the operation and administration of the Plan shall be vested in the
Board, which may delegate such responsibilities in whole or in part to a committee consisting of two (2) or more members of the Board (the “Committee”). Members of the Committee may be appointed from time to time by, and shall serve
at the pleasure of, the Board. The Board may limit the composition of the Committee to those persons necessary to comply with the requirements of Section 162(m) of the Code and Section 16 of the Exchange Act. As used herein, the term
“Administrator” means the Board or, with respect to any matter as to which responsibility has been delegated to the Committee, the term Administrator shall mean the Committee. 
  

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 7.2 Powers of the Administrator. In addition to any other powers or authority conferred upon the
Administrator elsewhere in the Plan or by law, the Administrator shall have full power and authority: (a) to determine the persons to whom, and the time or times at which, Incentive Options or Nonqualified Options or rights to purchase
Restricted Stock shall be granted, the number of shares to be represented by each Option and the number of shares of Restricted Stock to be offered, and the consideration to be received by the Company upon the exercise of such Options or sale of
such Restricted Stock; (b) to interpret the Plan; (c) to create, amend or rescind rules and regulations relating to the Plan; (d) to determine the terms, conditions and restrictions contained in, and the form of, Option Agreements and
Stock Purchase Agreements; (e) to determine the identity or capacity of any persons who may be entitled to exercise a Participant’s rights under any Option or Stock Purchase Agreement under the Plan; (f) to correct any defect or
supply any omission or reconcile any inconsistency in the Plan or in any Option Agreement or Stock Purchase Agreement; (g) to accelerate the vesting of any Option or release or waive any repurchase rights of the Company with respect to
Restricted Stock; (h) to extend the exercise date of any Option or acceptance date of any Restricted Stock; (i) to provide for rights of first refusal and/or repurchase rights; (j) to provide for put rights in favor of optionees
whereby the Company would purchase outstanding options at a previously determined purchase price upon the occurrence of a specified event; (k) to provide for drag-along rights and other voting provisions; (l) to amend outstanding Option
Agreements and Stock Purchase Agreements to provide for, among other things, any change or modification which the Administrator could have included in the original Agreement or in furtherance of the powers provided for herein; and (m) to make
all other determinations necessary or advisable for the administration of the Plan, but only to the extent not contrary to the express provisions of the Plan. Any action, decision, interpretation or determination made in good faith by the
Administrator in the exercise of its authority conferred upon it under the Plan shall be final and binding on the Company and all Participants. 
 7.3 Limitation on Liability. No employee of the Company or member of the Board or Committee shall be subject to any liability with respect to duties under the Plan unless the person acts fraudulently or in bad faith. To the extent
permitted by law, the Company shall indemnify each member of the Board or Committee, and any employee of the Company with duties under the Plan, who was or is a party, or is threatened to be made a party, to any threatened, pending or completed
proceeding, whether civil, criminal, administrative or investigative, by reason of such person’s conduct in the performance of duties under the Plan. 
 ARTICLE 8. 
 CHANGE IN CONTROL 
 8.1 Change in Control. In order to preserve a Participant’s rights in the event of a Change in Control of the Company: 
 (a) The Administrator shall have the discretion to provide the extent (if any) to which vesting of an Option shall occur upon the
consummation of a Change in Control, as well as the discretion to determine the terms and conditions by which each such Option shall so vest. Such discretion shall be with respect to each Option, and may be different than other Options currently
issued or that may be issued. 
  

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 (b) The Administrator can determine, in each Option Agreement, the extent to
which: (i) the Options (including the unvested portion thereof) are to be assumed by the acquiring or successor entity (or parent thereof) or new options of comparable value are to be issued in exchange therefor pursuant to the terms of the
Change in Control transaction, or (ii) the Options (including the unvested portion thereof) are to be replaced by the acquiring or successor entity (or parent thereof) with other incentives of comparable value under a new incentive program
(“New Incentives”) containing such terms and provisions as the Administrator in its discretion may consider equitable. If outstanding Options are assumed, or if new options of comparable value are issued in exchange therefor, then each
such Option or new option shall be appropriately adjusted, concurrently with the Change in Control, to apply to the number and class of securities or other property that the Participant would have received pursuant to the Change in Control
transaction in exchange for the shares issuable upon exercise of the Option had the Option been exercised immediately prior to the Change in Control, and appropriate adjustment also shall be made to the Exercise Price such that the aggregate
Exercise Price of each such Option or new option shall remain the same as nearly as practicable. 
 (c) To the extent
that Options will accelerate pursuant to a Change in Control, the Administrator in its discretion may provide, in connection with such Change in Control transaction, for the purchase or exchange of each Option for an amount of cash or other property
having a value equal to the difference (or “spread”) between: (x) the value of the cash or other property that the Participant would have received pursuant to the Change in Control transaction in exchange for the shares issuable upon
exercise of the Option had the Option been exercised immediately prior to the Change in Control, and (y) the Exercise Price of the Option. 
 (d) The Administrator in its discretion may provide in each Stock Purchase Agreement the extent (if any) to which Repurchase Rights shall terminate, and thus the extent (if any) to which shares of Common Stock
subject to such terminated Repurchase Rights vest, immediately prior to the consummation of a Change in Control of the Company. In addition, the Administrator may provide that in connection with such Change in Control, the acquiring or successor
entity (or parent thereof) may provide for the continuance or assumption of Stock Purchase Agreements or the substitution of new agreements of comparable value covering shares of a successor corporation, with appropriate adjustments as to the number
and kind of shares and purchase price. 
 (e) Outstanding Options shall terminate and cease to be exercisable upon
consummation of a Change in Control except to the extent that the Options are assumed by the successor entity (or parent thereof) or new options of comparable value or New Incentives are issued in exchange therefor pursuant to the terms of the
Change in Control transaction. 
 (f) The Administrator shall cause written notice of the proposed Change in Control
transaction to be given to Participants not less than fifteen (15) days prior to the anticipated effective date of the proposed transaction. 
 ARTICLE 9. 
 AMENDMENT AND TERMINATION OF THE PLAN 
 9.1 Amendments. The Board may from time to time alter, amend, suspend or terminate the Plan in such respects as the Board may deem advisable. No
such alteration, amendment, 

  

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suspension or termination shall be made which shall substantially affect or impair the rights of any Participant under an outstanding Option Agreement or
Stock Purchase Agreement without such Participant’s consent. The Board may alter or amend the Plan to comply with requirements under the Code relating to Incentive Options or other types of options which give Optionees more favorable tax
treatment than that applicable to Options granted under this Plan as of the date of its adoption. Upon any such alteration or amendment, any outstanding Option granted hereunder may, if the Administrator so determines and if permitted by applicable
law, be subject to the more favorable tax treatment afforded to an Optionee pursuant to such terms and conditions. 
 9.2 Plan
Termination. Unless the Plan shall theretofore have been terminated, the Plan shall terminate on the tenth (10th) anniversary of the Effective Date or the tenth (10th) anniversary of the date the Plan is approved by the stockholders of
the Company, whichever is earlier, and no Options or Rights to Purchase may be granted under the Plan thereafter, but Option Agreements, Stock Purchase Agreements and Rights to Purchase then outstanding shall continue in effect in accordance with
their respective terms. 
 ARTICLE 10. 
 TAX WITHHOLDING 
 10.1 Withholding. The Company shall have the power to withhold, or require a
Participant to remit to the Company, an amount sufficient to satisfy any applicable Federal, state, and local tax withholding requirements with respect to any Options exercised or Restricted Stock issued under the Plan. To the extent permissible
under applicable tax, securities and other laws, the Administrator may, in its sole discretion and upon such terms and conditions as it may deem appropriate, permit a Participant to satisfy his or her obligation to pay any such tax, in whole or in
part, up to an amount determined on the basis of the highest marginal tax rate applicable to such Participant, by (a) directing the Company to apply shares of Common Stock to which the Participant is entitled as a result of the exercise of an
Option or as a result of the purchase of or lapse of restrictions on Restricted Stock or (b) delivering to the Company shares of Common Stock owned by the Participant. The shares of Common Stock so applied or delivered in satisfaction of the
Participant’s tax withholding obligation shall be valued at their Fair Market Value as of the date of measurement of the amount of income subject to withholding. 
 ARTICLE 11. 
 MISCELLANEOUS 
 11.1 Benefits Not Alienable. Other than as provided above, benefits under the Plan may not be assigned or alienated, whether voluntarily or
involuntarily. Any unauthorized attempt at assignment, transfer, pledge or other disposition shall be without effect. 
 11.2 No
Enlargement of Employee Rights. This Plan is strictly a voluntary undertaking on the part of the Company and shall not be deemed to constitute a contract between the Company and any Participant to be consideration for, or an inducement to, or a
condition of, the employment of any Participant. Nothing contained in the Plan shall be deemed to give the right to any Participant to be retained as an employee of the Company or any Affiliated Company or to limit the right of the Company or any
Affiliated Company to discharge any Participant at any time. 
  

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 11.3 Application of Funds. The proceeds received by the Company from the sale of Common Stock
pursuant to Option Agreements and Stock Purchase Agreements, except as otherwise provided herein, will be used for general corporate purposes. 
 11.4 Annual and Other Periodic Reports. 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, not less frequently than annually during the
period such Participant has one or more Options or rights to purchase Restricted Stock outstanding, and in the case of an individual who acquires shares pursuant to the Plan, during the period such individual owns such shares, 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. 
 11.5 Stockholder Approval. The Company shall obtain stockholder approval of the Plan within twelve (12) months before or after the adoption
of the Plan by the Board of Directors. 
  

 12Form of Stock Option under 2005 Stock Incentive Plan

 Exhibit 10.8 
 Option No.          
 THEROX, INC. 
 STOCK OPTION AGREEMENT 
 Type
of Option (check one):     ̈  Incentive         ̈  Nonqualified 
 This Stock Option Agreement (the “Agreement”) is entered into as of
            , 200     (the “Effective Date”), by and between THEROX, INC., a Delaware corporation (the “Company”),
and                              (the “Optionee”) pursuant to the Company’s 2005
Stock Incentive Plan (the “Plan”). Any capitalized term not defined herein shall have the same meaning ascribed to it in the Plan. 
 1. Grant of Option. The Company hereby grants to Optionee an option (the “Option”) to purchase all or any portion of a total of
                         (        ) shares (the
“Shares”) of the Common Stock of the Company at a purchase price of                     
($             ) per share (the “Exercise Price”), subject to the terms and conditions set forth herein and the provisions of the Plan. If the box marked
“Incentive” above is checked, then this Option is intended to qualify as an “incentive stock option” as defined in Section 422 of the Internal Revenue Code of l986, as amended (the “Code”). If this Option
fails in whole or in part to qualify as an incentive stock option, or if the box marked “Nonqualified” is checked, then this Option shall to that extent constitute a nonqualified stock option. 
 2. Vesting of Option. The right to exercise this Option shall vest in installments, and this Option shall be exercisable from time to time
in whole or in part as to any vested installment (“Vested Shares”).              of the Shares shall become Vested Shares on the
                     anniversary of the “Vesting Commencement Date,” and thereafter, the balance of the Shares shall become Vested
Shares in a series of                      successive equal monthly installments for each full month of Continuous Service provided by the
Optionee, such that 100% of the Shares shall become Vested Shares on the fourth anniversary of the “Vesting Commencement Date.” For these purposes, the “Vesting Commencement Date” shall be
                    . 
 No
additional Shares shall vest after the date of termination of Optionee’s “Continuous Service” (as defined below), but this Option shall continue to be exercisable in accordance with Section 3 hereof with respect to that number of
shares that have vested as of the date of termination of Optionee’s Continuous Service. 
 For purposes of this Agreement, the term
“Continuous Service” means (i) employment by either the Company or any parent or subsidiary corporation of the Company, or by a corporation or a parent or subsidiary of a corporation issuing or assuming a stock option in a
transaction to which Section 424(a) of the Code applies, which is uninterrupted except for vacations, illness (except for permanent disability, as defined in Section 22(e)(3) of the Code), or leaves of absence which are approved in writing
by the Company or any of such other employer corporations, if applicable, (ii) service as a member of the Board of Directors of the Company until Optionee resigns, is removed from office, or Optionee’s term of office expires and he or she
is not reelected, or (iii) so long as Optionee is engaged as a Consultant or Service Provider. 

 3. Term of Option. The right of the Optionee to exercise this Option shall terminate upon
the first to occur of the following: 
 (a) the expiration of ten (10) years from the date of this Agreement; 

(b) the expiration of one (1) year from the date of termination of Optionee’s Continuous Service if such termination is due
to permanent disability of the Optionee (as defined in Section 22(e)(3) of the Code); 
 (c) the expiration of one
(1) year from the date of termination of Optionee’s Continuous Service if such termination is due to Optionee’s death or if death occurs during either the three-month or one-month period following termination of Optionee’s
Continuous Service pursuant to Section 3(d) or 3(e) below, as the case may be; 
 (d) the expiration of three
(3) months from the date of termination of Optionee’s Continuous Service if such termination occurs for any reason other than permanent disability, death, voluntary resignation or cause; provided, however, that if Optionee dies during such
three-month period the provisions of Section 3(c) above shall apply; 
 (e) the expiration of one (1) month from the
date of termination of Optionee’s Continuous Service if such termination occurs due to voluntary resignation; provided, however, that if Optionee dies during such one-month period the provisions of Section 3(c) above shall apply;

 (f) the termination of Optionee’s Continuous Service, if such termination is for cause; or 
 (g) upon the consummation of a “Change in Control” (as defined in Section 2.4 of the Plan), unless otherwise provided
pursuant to Section 13 below. 
 4. Exercise of Option. 
 (a) Standard Exercise. On or after the vesting of any portion of this Option in accordance with Sections 2 or 13 hereof, and until
termination of the right to exercise this Option in accordance with Section 3 above, the portion of this Option that has vested may be exercised in whole or in part by the Optionee (or, after his or her death, by the person designated in
Section 5 below) upon delivery of the following to the Company at its principal executive offices: 
 (i) a written
notice of exercise which identifies this Agreement and states the number of Shares then being purchased (but no fractional Shares may be purchased), with any partial exercise being deemed to cover first vested Shares and then the earliest vesting
installments of unvested Shares; 
 (ii) a check or cash in the amount of the Exercise Price (or payment of the Exercise Price
in such other form of lawful consideration as the Administrator may approve from time to time under the provisions of Section 5.3 of the Plan); 
  

 2 

 (iii) a check or cash in the amount reasonably requested by the Company to satisfy the
Company’s withholding obligations under federal, state or other applicable tax laws with respect to the taxable income, if any, recognized by the Optionee in connection with the exercise of this Option (unless the Company and Optionee shall
have made other arrangements for deductions or withholding from Optionee’s wages, bonus or other compensation payable to Optionee, or by the withholding of Shares issuable upon exercise of this Option or the delivery of Shares owned by the
Optionee in accordance with Section 10.1 of the Plan, provided such arrangements satisfy the requirements of applicable tax laws); and 
 (iv) a letter, if requested by the Company, in such form and substance as the Company may require, setting forth the investment intent of the Optionee, or person designated in Section 5 below, as the case may be.

 (b) Early Exercise. On or after the Effective Date of this Agreement, and until termination of the right to exercise
this Option in accordance with Section 3 above, the outstanding balance of the Option (including both vested and unvested portions) may be exercised in whole by the Optionee (or, after his or her death, by the person designated in
Section 5 below) into Shares subject to the terms of a Restricted Stock Purchase Agreement (which terms shall thereafter supercede the terms of this Agreement with respect to the Shares covered by the Restricted Stock Purchase Agreement), upon
delivery of the following to the Company at its principal executive offices: 
 (i) a written notice of exercise which
identifies this Agreement and states the election to early exercise this Option; 
 (ii) a duly executed Restricted Stock
Purchase Agreement and such other documents as reasonably requested by the Company to effectuate the terms of the Restricted Stock Purchase Agreement; 
 (iii) a check or cash in the amount of the Exercise Price (or payment of the Exercise Price in such other form of lawful consideration as the Administrator may approve from time to time under the provisions of
Section 5.3 of the Plan); and 
 (iv) a check or cash in the amount reasonably requested by the Company to satisfy the
Company’s withholding obligations under federal, state or other applicable tax laws with respect to the taxable income, if any, recognized by the Optionee in connection with the exercise of this Option (unless the Company and Optionee shall
have made other arrangements for deductions or withholding from Optionee’s wages, bonus or other compensation payable to Optionee). 
 5. Death of Optionee; No Assignment. The rights of the Optionee under this Agreement may not be assigned or transferred except by will or by the laws of descent and distribution, and may be exercised during the lifetime of the
Optionee only by such Optionee. Any attempt to sell, pledge, assign, hypothecate, transfer or dispose of this Option in contravention of this Agreement or the Plan shall be void and shall have no effect. If the Optionee’s Continuous Service
terminates as a result of his or her death, and provided Optionee’s rights hereunder shall have vested pursuant to Section 2 hereof, Optionee’s legal representative, his or her legatee, or the person who acquired the right to exercise
this Option by reason of the death of the Optionee (individually, a “Successor”) shall succeed to the Optionee’s rights and obligations under this Agreement. After the death of the Optionee, only a Successor may exercise this
Option. 
  

 3 

 6. Representations and Warranties of Optionee. 
 (a) Optionee represents and warrants that this Option is being acquired by Optionee for Optionee’s personal account, for investment
purposes only, and not with a view to the distribution, resale or other disposition thereof. 
 (b) Optionee acknowledges that
the Company may issue Shares upon the exercise of the Option without registering such Shares under the Securities Act of l933, as amended (the “Securities Act”), on the basis of certain exemptions from such registration requirement.
Accordingly, Optionee agrees that his or her exercise of the Option may be expressly conditioned upon his or her delivery to the Company of an investment certificate including such representations and undertakings as the Company may reasonably
require in order to assure the availability of such exemptions, including a representation that Optionee is acquiring the Shares for investment and not with a present intention of selling or otherwise disposing thereof and an agreement by Optionee
that the certificates evidencing the Shares may bear a legend indicating such non-registration under the Securities Act and the resulting restrictions on transfer. Optionee acknowledges that, because Shares received upon exercise of an Option may be
unregistered, Optionee may be required to hold the Shares indefinitely unless they are subsequently registered for resale under the Securities Act or an exemption from such registration is available. 
 (c) Optionee acknowledges receipt of a copy of the Plan and understands that all rights and obligations connected with this Option are set
forth in this Agreement and in the Plan. 
 7. Right of First Refusal. 
 (a) The Shares acquired pursuant to the exercise of this Option may be sold by the Optionee only in compliance with the provisions of this
Section 7, and subject in all cases to compliance with the provisions of Section 6(b) hereof. Prior to any intended sale, Optionee shall first give written notice (the “Offer Notice”) to the Company specifying (i) his
or her bona fide intention to sell or otherwise transfer such Shares, (ii) the name and address of the proposed purchaser(s), (iii) the number of Shares the Optionee proposes to sell (the “Offered Shares”), (iv) the
price for which he or she proposes to sell the Offered Shares, and (v) all other material terms and conditions of the proposed sale. 
 (b) Within thirty (30) days after receipt of the Offer Notice, the Company or its nominee(s) may elect to purchase all or any portion of the Offered Shares at the price and on the terms and conditions set forth
in the Offer Notice by delivery of written notice (the “Acceptance Notice”) to the Optionee specifying the number of Offered Shares that the Company or its nominees elect to purchase. Within fifteen (15) days after delivery of
the Acceptance Notice to the Optionee, the Company and/or its nominee(s) shall deliver to the Optionee payment of the amount of the purchase price of the Offered Shares to be purchased pursuant to this Section 7, against delivery by the
Optionee of a certificate or certificates representing the Offered Shares to be purchased, duly endorsed for transfer to the Company or such nominee(s), as the case may be. Payment shall be made on the same terms as set forth in the Offer Notice or,
at the election of the Company or its nominees(s), by check or wire transfer of funds. If the Company and/or its nominee(s) do not elect to purchase all of the Offered Shares, the Optionee shall be entitled to sell the balance of the Offered 

  

 4 

 
Shares to the purchaser(s) named in the Offer Notice at the price specified in the Offer Notice or at a higher price and on the terms and conditions set
forth in the Offer Notice; provided, however, that such sale or other transfer must be consummated within sixty (60) days from the date of the Offer Notice and any proposed sale after such 60-day period may be made only by again complying with
the procedures set forth in this Section 7. 
 (c) The Optionee may transfer all or any portion of the Shares to a trust
established for the sole benefit of the Optionee and/or his or her spouse or children without such transfer being subject to the right of first refusal set forth in this Section 7, provided that the Shares so transferred shall remain subject to
the terms and conditions of this Agreement and no further transfer of such Shares may be made without complying with the provisions of this Section 7. 
 (d) Any Successor of Optionee pursuant to Section 5 hereof, and any transferee of the Shares pursuant to this Section 7, shall hold the Shares subject to the terms and conditions of this Agreement and no
further transfer of the Shares may be made without complying with the provisions of this Section 7. 
 (e) The rights
provided the Company and its nominee(s) under this Section 7 shall terminate upon the closing of the initial public offering of shares of the Company’s Common Stock pursuant to a registration statement filed with and declared effective by
the Securities and Exchange Commission under the Securities Act. 
 8. Company’s Repurchase Right. 
 (a) The Company shall have the right (but not the obligation) to repurchase (the “Repurchase Right”) any or all of the
Shares acquired pursuant to the exercise of this Option in the event that the Optionee’s Continuous Service should terminate for any reason whatsoever, including without limitation Optionee’s death, disability, voluntary resignation or
termination by the Company with or without cause. Upon exercise of the Repurchase Right, the Optionee shall be obligated to sell his or her Shares to the Company, as provided in this Section 8. The Repurchase Right may be exercised by the
Company at any time during the period commencing on the date of termination of Optionee’s Continuous Service and ending sixty (60) days after the last to occur of the following: 
 (i) the termination of Optionee’s Continuous Service; 
 (ii) the expiration of Optionee’s right to exercise this Option pursuant to Section 3 hereof; or 
 (iii) in the event of Optionee’s death, receipt by the Company of notice of the identity and address of Optionee’s Successor (as
defined in Section 5 hereof). 
 (b) The purchase price for Shares repurchased hereunder (the “Repurchase
Price”) shall be the Fair Market Value per share of Common Stock (determined in accordance with Section 2.14 of the Plan) as of the date of termination of Optionee’s Continuous Service. 
 (c) Written notice of exercise of the Repurchase Right, stating the number of Shares to be repurchased and the Repurchase Price per Share,
shall be given by the Company to the Optionee or his or her Successor, as the case may be, during the period specified in Section 8(a) above. 
  

 5 

 (d) The Repurchase Price shall be payable, at the option of the Company, by check or by
cancellation of all or a portion of any outstanding indebtedness of Optionee to the Company, or by any combination thereof. The Repurchase Price shall be paid without interest within thirty (30) days after delivery of the notice of exercise of
the Repurchase Right, against delivery by the Optionee or his or her Successor of a certificate or certificates representing the Shares to be repurchased, duly endorsed for transfer to the Company. 
 (e) The rights provided the Company under this Section 8 shall terminate upon the closing of the initial public offering of shares of
the Company’s Common Stock pursuant to a registration statement filed with and declared effective by the Securities and Exchange Commission under the Securities Act. 
 9. Optionee’s Put Right. In the event that the Exercise Price is less than $4.10 per share, as adjusted for any recapitalizations, stock splits, combinations of shares, reclassifications, stock
dividends or other changes in the capital structure of the Company occurring after the reverse stock split effective July 14, 2005: 
 (a) Subject to the provisions of this Section 9, upon the occurrence of any liquidation, dissolution or winding up of the Company (or a Deemed Liquidation Event as defined in the Company’s Amended and
Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware on July 5, 2005, as amended to date, and as subsequently amended after the date hereof (the “Restated Certificate”)), either
voluntary or involuntary (each, a “Put Event”), Optionee shall have the right and option (the “Put Right”), exercisable at his or her sole discretion by giving prior irrevocable written notice to the Company (the
“Put Notice”), to sell to the Company, and upon receipt of any such written notice, the Company hereby agrees to repurchase from Optionee in cash on the closing of the Put Event, rights to purchase Vested Shares then held by
Optionee (excluding any Shares that have previously been issued upon exercise of the Option) and set forth in the Put Notice up to a maximum of fifty percent (50%) of the aggregate number of Shares originally subject to the Option at a per
Share price equal to the difference between $4.10 and the Exercise Price, with the foregoing amounts subject to appropriate adjustment for recapitalizations, stock splits, combinations of shares, reclassifications, stock dividends or other changes
in the capital structure of the Company occurring after the reverse stock split effective July 14, 2005. 
 (b) The
Company shall not be obligated to repurchase the rights to purchase Vested Shares subject to the Put Notice to the extent that such repurchase would be unlawful. Additionally, the payment of any amounts by the Company hereunder shall be subordinate
to (i) the payment of liquidation preferences for the Company’s Preferred Stock set forth in the Restated Certificate and (ii) the repayment of indebtedness of the Company, but senior to any liquidation distribution to the holders of
Common Stock or Preferred Stock on an as-converted basis (after repayment of the Company’s indebtedness and the Preferred Stock liquidation preferences). 
 (c) The Put Right may be exercised in whole or in part in a single instance prior to a Put Event and shall automatically terminate
following the occurrence of a Put Event. 
 (d) Notwithstanding anything to the contrary in this Section 9, the Put Right
shall terminate and be of no further force and effect immediately upon the Company becoming subject to the reporting requirements of the Securities Exchange Act of 1934, as amended. 
 10. Drag-Along Rights. Optionee hereby agrees to vote all of the Shares acquired pursuant to the exercise of this Option in accordance
with, and that such Shares shall be subject to, the drag-along rights provisions attached hereto as Appendix A, which are incorporated into this 

  

 6 

 
Section 10, as subsequently amended after the date hereof in connection with any amendments to the Restated Rights Agreement (as defined below) (the
“Drag-Along Rights Provisions”). The Drag-Along Rights Provisions are substantially the same provisions as those set forth in Sections 4.3, 4.4, 4.5 and 4.6 of that certain Second Amended and Restated Investors’ Rights and
Voting Agreement by and among the Company and the persons identified on Schedule I thereto (the “Investors”), dated July 7, 2005 (the “Restated Rights Agreement”). For purposes of this Section 10 only,
Optionee shall be an “Investor” as such term is used in the Drag-Along Rights Provisions. 
 11. Restrictive
Legends. 
 (a) Optionee hereby acknowledges that federal securities laws and the securities laws of the state in
which he or she resides may require the placement of certain restrictive legends upon the Shares issued upon exercise of this Option, and Optionee hereby consents to the placing of any such legends upon certificates evidencing the Shares as the
Company, or its counsel, may deem necessary or advisable. 
 (b) In addition, all stock certificates evidencing the Shares
shall be imprinted with a legend substantially as follows: 
 “THE SHARES OF STOCK REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
RESTRICTIONS ON TRANSFER, DRAG-ALONG RIGHTS, A RIGHT OF FIRST REFUSAL AND A REPURCHASE RIGHT IN FAVOR OF THE COMPANY AND/OR ITS NOMINEE(S), AS SET FORTH IN A STOCK OPTION AGREEMENT DATED         
    , 200    . TRANSFER OF THESE SHARES MAY BE MADE ONLY IN COMPLIANCE WITH THE PROVISIONS OF SAID AGREEMENT, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THE COMPANY. SUCH TRANSFER
RESTRICTIONS, DRAG-ALONG RIGHTS, RIGHT OF FIRST REFUSAL AND REPURCHASE RIGHT ARE BINDING ON TRANSFEREES OF THESE SHARES.” 
 12.
Adjustments Upon Changes in Capital Structure. In the event that the outstanding shares of Common Stock of the Company are hereafter increased or decreased or changed into or exchanged for a different number or kind of shares or other
securities of the Company by reason of a recapitalization, stock split, combination of shares, reclassification, stock dividend or other change in the capital structure of the Company, then appropriate adjustment shall be made by the Administrator
to the number of Shares subject to the unexercised portion of this Option and to the Exercise Price per share, in order to preserve, as nearly as practical, but not to increase, the benefits of the Optionee under this Option, in accordance with the
provisions of Section 4.3 of the Plan. 
  

 7 

 13. Change in Control. In the event of a Change in Control (as defined in Section 2.4
of the Plan): 
 (a) The right to exercise this Option shall accelerate automatically and vest in full (notwithstanding the
provisions of Section 2 above) effective as of immediately prior to the consummation of the Change in Control unless this Option is to be assumed by the acquiring or successor entity (or parent thereof) or a new option or New Incentives are to
be issued in exchange therefor, as provided in subsection (b) below. If vesting of this Option will accelerate pursuant to the preceding sentence, the Administrator in its discretion may provide, in connection with the Change in Control
transaction, for the purchase or exchange of this Option for an amount of cash or other property having a value equal to the difference (or “spread”) between: (x) the value of the cash or other property that the Optionee would
have received pursuant to the Change in Control transaction in exchange for the Shares issuable upon exercise of this Option had this Option been exercised immediately prior to the Change in Control, and (y) the aggregate Exercise Price for
such Shares (an “Option Cash-Out”). In order to satisfy the Company’s withholding obligations under federal, state or other applicable tax laws with respect to the taxable income, if any, recognized by the Optionee in
connection an Option Cash Out, the Company may withhold a portion of the amount due to the Optionee in such Option Cash Out equal to the Company’s estimated withholding obligations (unless the Company and Optionee shall have made other
arrangements for deductions or withholding from Optionee’s wages, bonus or other compensation payable to Optionee, or by the withholding of Shares issuable upon exercise of this Option or the delivery of Shares owned by the Optionee in
accordance with Section 10.1 of the Plan, provided such arrangements satisfy the requirements of applicable tax laws). If the vesting of this Option will accelerate pursuant to this subsection (a), then the Administrator shall cause written
notice of the Change in Control transaction to be given to the Optionee not less than fifteen (15) days prior to the anticipated effective date of the proposed transaction. 
 (b) The vesting of this Option shall not accelerate if and to the extent that: (i) this Option (including the unvested portion
thereof) is to be assumed by the acquiring or successor entity (or parent thereof) or a new equity option of comparable value is to be issued in exchange therefor pursuant to the terms of the Change in Control transaction, or (ii) this Option
(including the unvested portion thereof) is to be replaced by the acquiring or successor entity (or parent thereof) with other incentives of comparable value under a new equity incentive program (“New Incentives”) containing such
terms and provisions as the Administrator in its discretion may consider equitable. If this Option is assumed, or if a new equity option of comparable value is issued in exchange therefor, then this Option or the new equity option shall be
appropriately adjusted, concurrently with the Change in Control, to apply to the number and class of securities or other property that the Optionee would have received pursuant to the Change in Control transaction in exchange for the Shares issuable
upon exercise of this Option had this Option been exercised immediately prior to the Change in Control, and appropriate adjustment also shall be made to the Exercise Price such that the aggregate Exercise Price of this Option or the new equity
option shall remain the same as nearly as practicable. 
 14. Limitation of Company’s Liability for Nonissuance; Unpermitted
Transfers. 
 (a) The Company agrees to use its reasonable best efforts to obtain from any applicable regulatory
agency such authority or approval as may be required in order to issue and sell the Shares to the Optionee pursuant to this Option. Inability of the Company to obtain, from any such regulatory agency, authority or approval deemed by the
Company’s counsel to be necessary for the lawful issuance and sale of the Shares hereunder and under the Plan shall relieve the Company of any liability in respect of the nonissuance or sale of such shares as to which such requisite authority
or approval shall not have been obtained. 
  

 8 

 (b) The Company shall not be required to: (i) transfer on its books any Shares of
the Company which shall have been sold or transferred in violation of any of the provisions set forth in this Agreement, or (ii) treat as owner of such Shares or to accord the right to vote as such owner or to pay dividends to any transferee to
whom such Shares shall have been so transferred. In the event of a sale of Shares by the Optionee pursuant to Section 7, the Optionee shall furnish to the Company proof that such sale was made in compliance with the provisions of Section 7
as to price and general terms of such sale. 
 15. No Agreement to Employ. Nothing in this Agreement shall affect any right
with respect to continuance of employment by the Company or any of its subsidiaries. The right of the Company or any of its subsidiaries to terminate at will the Optionee’s employment at any time (whether by dismissal, discharge or otherwise),
with or without cause, is specifically reserved, subject to any other written employment agreement to which the Company and Optionee may be a party. 
 16. Rights as Shareholder. The Optionee (or transferee of this option by will or by the laws of descent and distribution) shall have no rights as a shareholder with respect to any Shares covered by this
Option until such person has duly exercised this Option, paid the Exercise Price and become a holder of record of the Shares purchased. 
 17. “Market Stand-Off” Agreement. Optionee agrees that, if requested by the Company or the managing underwriter of any proposed public offering of the Company’s securities, Optionee will not sell or otherwise
transfer or dispose of any Shares held by Optionee without the prior written consent of the Company or such underwriter, as the case may be, during such period of time, not to exceed one hundred eighty (180) days following the effective date of
the registration statement filed by the Company with respect to such offering, as the Company or the underwriter may specify. 
 18.
Interpretation. This Option is granted pursuant to the terms of the Plan, and shall in all respects be interpreted in accordance therewith. The Administrator shall interpret and construe this Option and the Plan, and any action, decision,
interpretation or determination made in good faith by the Administrator shall be final and binding on the Company and the Optionee. As used in this Agreement, the term “Administrator” shall refer to the committee of the Board of
Directors of the Company appointed to administer the Plan, and if no such committee has been appointed, the term Administrator shall mean the Board of Directors. 
 19. Notices. Any notice, demand or request required or permitted to be given under this Agreement shall be in writing and shall be deemed given when delivered personally or three (3) days after
being deposited in the United States mail, as certified or registered mail, with postage prepaid, (or by such other method as the Administrator may from time to time deem appropriate), and addressed, if to the Company, at its principal place of
business, Attention: the Chief Financial Officer, and if to the Optionee, at his or her most recent address as shown in the employment or stock records of the Company. 
  

 9 

 20. Applicable Law. This Agreement shall be construed in accordance with the laws of the
State of California without reference to choice of law principles, as to all matters, including, but not limited to, matters of validity, construction, effect or performance. 
 21. Severability. Should any provision or portion of this Agreement be held to be unenforceable or invalid for any reason, the remaining
provisions and portions of this Agreement shall be unaffected by such holding. 
 22. Counterparts. This Agreement may be
executed in one or more counterparts, all of which taken together shall constitute one agreement and any party hereto may execute this Agreement by signing any such counterpart. This Agreement shall be binding upon Optionee and the Company at such
time as the Agreement, in counterpart or otherwise, is executed by Optionee and the Company. 
 23. Shares Free and Clear. All
Shares purchased by the Company pursuant to this Agreement shall be delivered by Optionee free and clear of all claims, liens and encumbrances of every nature (except the provisions of this Agreement and any conditions concerning the Shares relating
to compliance with applicable federal or state securities laws), and the purchaser thereof shall acquire full and complete title and right to all of the Shares, free and clear of any claims, liens and encumbrances of every nature (again except for
the provisions of this Agreement and such securities laws). 
 24. Binding Obligations. All covenants and agreements herein
contained by or on behalf of any of the parties hereto shall bind and inure to the benefit of the parties hereto and their permitted successors and assigns. 
 25. Captions and Section Headings. Captions and section headings used herein are for convenience only, and are not part of this Agreement and shall not be used in construing it. 
 26. Amendment. This Agreement may not be amended, waived, discharged, or terminated other than by written agreement of the parties.

 27. Entire Agreement. This Agreement and the Plan constitute the entire agreement between the parties with respect to the
subject matter hereof and supersede all prior or contemporaneous written or oral agreements and understandings of the parties, either express or implied. 
 28. California Corporate Securities Law. The sale of the Shares that are the subject of this Agreement has not been qualified with the Commissioner of Corporations of the State of California and the
issuance of such shares or the payment or receipt of any part of the consideration therefor prior to such qualification is unlawful, unless the sale of such shares is exempt from such qualification by Section 25100, 25102 or 25105 of the
California Corporate Securities Law of l968, as amended. The rights of all parties to this Agreement are expressly conditioned upon such qualification being obtained, unless the sale is so exempt. 
  

 10 

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

  

									
	“COMPANY”	 		 	“OPTIONEE”
			
	 THEROX, INC.,
 a Delaware
Corporation
	 		 	
				
	By:	 	 	 		 	 
		 		 		 	(Signature)
				
	Its:	 	 	 		 	 
		 		 		 	(Type or print name)
				
		 		 		 	Address:
				
		 		 		 	 
				
		 		 		 	 

  

 11 

 Appendix A 
 1. Drag Along Rights. 
 (a) In the event that the Board of Directors of the Company and the
holders of at least two-thirds of the outstanding shares of the Company’s Series I Preferred Stock (the “Series I Supermajority Holders”) vote to approve or otherwise enter into a transaction with another entity (the
“Purchasing Entity”) that would qualify as a Company Sale (as defined in Section 5 below), then the Series I Supermajority Holders shall have the right to require all other Investors to vote in favor of, consent to and raise no
objection to such Company Sale, and if such right is exercised pursuant to this Section 1, each holder of the Company’s capital stock hereto hereby agrees to vote all of the shares of the Company’s capital stock held by such holder in
favor of such Company Sale. 
 (b) In the event that the Board of Directors and the Series I Supermajority Holders vote to approve or
otherwise enter into a transaction with another entity that would qualify as a Company Sale (such Series I Supermajority Holders are referred to herein as the “Drag-Along Rights Holders”), the Drag-Along Rights Holders shall have
the right to require all other Investors to sell or transfer all of their capital stock of the Company to such unaffiliated purchaser on the same terms and conditions applicable, and for the same type and amount of consideration payable, to such
Drag-Along Rights Holders as determined on a pro rata basis (treating all convertible securities as fully converted into Common Stock for purposes of calculating such Investor’s pro rata share); provided, however, that the aggregate proceeds
from such sale or sales shall be distributed to the selling holders (including holders selling due to the exercise of the rights set forth in this Section 1(b)) in accordance with the rights and preferences set forth in, and assuming the
Company had been liquidated under the appropriate provisions of, the Amended and Restated Certificate of Incorporation (as amended from time to time). In the event the Drag-Along Rights Holders agree to any Company Sale and elect to require all
other Investors to sell or transfer their capital stock pursuant to this Section 1(b), the Drag-Along Rights Holders shall notify the other Investors of such proposed Company Sale (the “Drag Notice”) at least thirty
(30) days prior to the consummation of such proposed Company Sale. 
 (c) The Drag Notice shall set forth (a) a summary description
of the form of the proposed Company Sale, (b) the name of the proposed purchaser and (c) the proposed amount and form of consideration and terms and conditions of payment offered by the proposed purchaser, including copies of any terms
sheet or letter of intent with respect to the proposed Company Sale. Within twenty (20) days after receipt of the Drag Notice, the Investors (other than the Drag-Along Rights Holders) shall take all necessary and reasonably desirable actions in
connection with the consummation of the proposed Company Sale described in the Drag Notice, including, without limitation, (a) executing and delivering agreements and instruments reasonably satisfactory in form and substance to the proposed
purchaser and the Drag-Along Rights Holders, as may be reasonably necessary to provide the representations, warranties, indemnities, covenants, conditions, escrow agreements and other provisions and agreements relating to such Company Sale, and
(b) appointing the Chief Executive Officer of the Company as attorney and agent of such Investors to execute and/or deliver any and all instruments on their behalf in connection with such Company Sale, subject only to the satisfaction by the
third party of its obligations to consummate the proposed Company Sale; provided, however, that no Investor compelled to take any action contemplated by this Section 1(c) shall be required to (A) make any representations or warranties
regarding the Company, (B) incur any indemnification obligation or other contractual liability in excess of the amount of consideration to be received by such Investor in connection with the Company Sale, or (C) incur any indemnification
obligation or other contractual liability in excess of such Investor’s pro-rata share of such obligation or liability with all other Investors. 
  

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 2. Transfer of Rights. Any person to which the Shares are transferred, whether voluntarily or by operation
of law, shall be bound by the obligations imposed upon the transferor under this Agreement, to the same extent as if such transferee were an Investor hereunder; and no Investor shall transfer any Shares unless the transferee provides a written
instrument to the Company notifying the Company (or the transfer agent if one shall be appointed) of such transfer and agreeing in writing to be bound by the terms of this Appendix A. 
 3. Grant of Proxy. Each Investor hereby grants to the Chief Executive Officer of the Company an irrevocable proxy, coupled with an interest, to vote all capital stock of the Company owned by such
Investor and to take such other actions to the extent necessary to carry out the provisions in this Appendix A. 
 4. Termination. The
obligations set forth in this Appendix A shall terminate in its entirety upon the earliest to occur of (i) the closing of a Company Sale, (ii) a sale of capital stock of the Company in which the holders of capital stock of the Company
immediately prior to such sale of stock do not hold, immediately following such transaction, at least a majority of the voting power of the Company, (iii) the closing of an Qualifying Public Offering (as defined in Section 5 below) or
(iv) the termination of the Restated Rights Agreement. 
 5. Definitions. 
 (a) “Company Sale” means: (i) a merger or consolidation in which (A) the Company is a constituent party, or (B) a Company
Subsidiary is a constituent party and the Company issues shares of its capital stock pursuant to such merger or consolidation, except in the case of either clause (A) or (B) any such merger or consolidation involving the Company or a
Company Subsidiary in which the holders of shares of capital stock of the Company immediately prior to such merger or consolidation continue to hold, immediately following such merger or consolidation, at least a majority, by voting power of the
capital stock of (I) the surviving or resulting corporation or (II) if the surviving or resulting corporation is a wholly owned subsidiary of another corporation immediately following such merger or consolidation, the parent corporation of
such surviving or resulting corporation; or (ii) the sale, lease, transfer, exclusive license or other disposition, in a single transaction or series of related transactions, by the Company or a Company Subsidiary of all or substantially all
the assets or intellectual property of the Company and the Company Subsidiaries taken as a whole (except where such sale, lease, transfer, exclusive license or other disposition is to a wholly owned Company Subsidiary). 
 (b) “Company Subsidiary” means any corporation, partnership, trust, limited liability company or other non-corporate business enterprise
in which the Company (or another Company Subsidiary) holds stock or other ownership interests representing (i) more than 50% of the voting power of all outstanding stock or ownership interests of such entity or (ii) the right to receive
more than 50% of the net assets of such entity available for distribution to the holders of outstanding stock or ownership interests upon a liquidation or dissolution of such entity. 
 (c) “Qualifying Public Offering” means the closing of an offering of Common Stock, at a price to the public of at least $1.23 per share
(subject to appropriate adjustment for stock splits, stock dividends, combinations and other similar recapitalizations affecting such shares), in a firm-commitment underwritten public offering pursuant to an effective registration statement under
the Securities Act of 1933, as amended, and the rules and regulations of the SEC, resulting in an aggregate net proceeds to the Company of at least $30,000,000. 
  

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