Equity. Subject to approval by the Board, you will receive stock options to purchase 75,000 shares of the Company’s Common Stock for a price per share equal to the fair market value of one share of the Common Stock on the date of the option grant as determined by the Board and pursuant and subject to the terms of the Company’s Option Agreement (which must be executed to receive the grant). The stock options will vest (become exercisable) as follows: 12.5% of the shares underlying the options shall vest upon the six (6) month anniversary of your employment commencement date and 1/42nd of the remainder of such shares will vest on a monthly basis in forty-two (42) equal monthly installments with the first such installment vesting on the seven (7) month anniversary of your employment commencement date, subject to your continued employment with the Company through each vesting date.

Equity. Subject to approval by the Board, you will receive stock options to purchase 50,000 shares of the Company’s Common Stock for a price per share equal to the fair market value of one share of the Common Stock on the date of the option grant as determined by the Board and pursuant and subject to the terms of the Company’s Option Agreement (which must be executed to receive the grant). The stock options will vest (become exercisable) as follows:

Stock Options. Subject to the approval of the Board, or the Board’s Compensation Committee, pursuant to the Company’s equity incentive plan you will be granted a stock option covering three hundred forty-one thousand (341,000) shares of Company common stock at a per share exercise price equal to the per share fair market value of the Company’s common stock on the grant date. The term of such stock option will be ten (10) years, subject to earlier expiration in the event of the termination of your service with the Company. Such stock option will vest and be exercisable as to twenty-five percent (25%) of the shares covered by the option on the first year anniversary of your employment commencement date and the remaining seventy-five percent (75%) of the shares covered by the option will vest in thirty-six (36) equal monthly installments with the first monthly installment vesting one month following the first year anniversary of your employment commencement date, as long as you remain in continuous service with the Company. Notwithstanding the foregoing, a portion of the shares subject to your outstanding option may vest on an accelerated basis pursuant to Articles 8 or 9. Except as provided herein, such stock option will be subject to the provisions of the equity incentive plan of the Company under which the options are granted and the applicable form of stock option agreement thereunder (the “Plan Documents”).

It will also be recommended that the Company grant you an option to purchase 80,000 of the Company's Common Stock at a price per share equal to the fair market value per share of the Common Stock on the date of grant, as determined by the Company's Board of Directors. Twenty-five percent (25%) of the shares subject to the option shall vest on the date that is 12 months after the date your vesting begins subject to your continuing employment with the Company, and no shares shall vest before such date. The remaining shares shall vest monthly over the next 36 months in equal monthly amounts subject to your continuing employment with the Company. This option grant shall be subject to the terms and conditions of the Company's equity incentive plan and stock option agreement thereunder, including vesting requirements. No right to any stock is earned or accrued until such time that vesting occurs, nor does the grant confer any right to continue vesting or employment.

Stock Option Grant. In connection with the commencement of your employment, the Company will recommend that the Board of Directors, at the next regularly scheduled meeting, grant you an option to purchase 145,000 shares of the Company’s Common Stock (“Option Shares”) with an exercise price equal to the fair market value on the date of the grant. These option shares will vest at the rate of 25% of the shares on the twelve (12) month anniversary of your Vesting Commencement Date (as defined in your Stock Option Agreement, which date will be your Start Date, as defined above) and the remaining Option Shares will vest monthly thereafter at the rate of 1/48 of the total number of the Option Shares per month. Vesting will, of course, depend on your continued employment with the Company. The option will be subject to the terms of the Company’s 2011 Equity Incentive Plan and the Stock Option Agreement between you and the Company.

Equity: Subject to the approval of the Company's Board of Directors, you will be granted 200,000 Incentive Stock Options under the Company's stock option plan to purchase shares of the Company's Common Stock (the "Option Shares") at a price per share equal to the fair market value of shares as determined by the Board of Directors. Your Incentive Stock Option will vest as 25% of the shares subject to such award on the first anniversary of the Vesting Start Date and in equal monthly installments thereafter over a total vesting period of four years, provided you remain an employee of the Company.

In connection with entering into this letter agreement, following the commencement of your employment with the Company, the Company will recommend to the Board of Directors or its designee that it grant you an option to purchase 130,000 shares of the Company’s common stock (the “Stock Option”) at a per-share exercise price equal to the fair market value of a share of the Company’s common stock on the date of grant (as determined under the Plan (as defined below)), provided that you are employed by the Company on the date of grant Subject to your continued employment with the Company through the applicable vesting date, 25% of the shares underlying the Stock Option will vest on the first anniversary of the date you commence employment with the Company and 1/48th of the total number of shares initially underlying the Stock Option will vest on each monthly anniversary thereafter. The Stock Option will otherwise be subject to the terms and conditions of the Company’s 2019 Incentive Award Plan (the “Plan”) and a stock option agreement to be entered into between you and the Company.

As additional compensation, and subject to approval by the Board of Directors of the Company, the Company will arrange for the grant to you, which will be incentive stock options if available, to purchase 160,000 shares of Company common stock with an exercise price equal to the fair market value of the Company’s stock, as defined in the Company’s equity incentive plan, on the date of grant. One-fourth of the total number of options in this grant will vest upon your completion of 12 months of employment, and one forty-eighth (1/48th) each month thereafter, in each case, subject to your continued service through the applicable vesting date. The options in this incentive stock option grant will expire the day prior to the tenth anniversary of the grant date.

Stock Options. Subject to the approval of the Board pursuant to the Company’s equity incentive plan you will be granted a stock option of two hundred and fifty thousand (250,000) shares of Company common stock at a per share exercise price equal to the per share fair market value of the Company’s common stock on the date of grant as determined by the Board. Option grants are made at regular Board meetings held approximately once each calendar quarter. Your option grant will be considered at the first regular Board meeting following the execution of this letter agreement. The term of such stock option will be ten (10) years, subject to earlier expiration in the event of the termination of your service with the Company. Such stock option will vest as determined by the Board, as long as you remain in continuous service with the Company and a portion of the shares subject to your outstanding option may vest on an accelerated basis pursuant to Sections 7 or 8. Except as provided herein, such stock option will be subject to the provisions of the equity incentive plan of the Company under which the options are granted and the applicable form of stock option agreement thereunder (the “Plan Documents”).

Equity Awards. Subject to approval by the Company's Board of Directors (the "Board") which will not be unreasonably withheld and voted upon within thirty (30) days of your Start Date, the Company will grant you an option to purchase 106,000 shares of the Company's common stock (the "Option"). The Option will be governed by the terms and conditions of the Company's 2020 Incentive Award Plan (the "Plan") and your grant agreement, and will include the following vesting schedule: 25% of the total shares subject to the Option will vest on the first anniversary of your Start Date, and 1/48th of the total shares subject to the Option will vest each month thereafter on the same day of the month as the Start Date (or if there is no corresponding day, on the last day of the month), subject to your continuous employment or service through each such date. The Option will have an exercise price equal to the fair market value per share of the Company's common stock on the date of grant, as determined under the Plan. If there are any inconsistencies between the terms of this Agreement and the Plan or your grant agreements, the terms of this Agreement shall govern.