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:

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 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.

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”).

Stock Option Grant: Subject to approval by the Company’s Board of Directors (the “Board”), the Company anticipates granting you an option to purchase 100,000 shares of the Company’s common stock at the fair market value as determined by the Board as of the date of grant (the “Option”). The anticipated Option will be governed by the terms and conditions of the Company’s 2019 Equity Incentive Plan (the “Plan”) and your grant agreement, and will include a four year vesting schedule, under which 1/4th of the shares vest one year after the vesting commencement date and the balance of the shares vest in a series of 36 successive equal monthly installments measured from the first anniversary of the vesting commencement date, until either the Option is fully vested or your continuous service (as defined in the Plan) terminates, whichever occurs first.

Stock Option Grant: Subject to the approval of the Company’s Board of Directors (the “Board”), you will be granted an initial option to purchase 100,000 shares of the Company’s common stock at a price equal to the fair market value as approved by the Board. On-going equity grants will be reviewed on an annual basis.

Equity. Subject to the terms of the Company's then applicable equity incentive plan ("'Incentive Plan") and form of option agreement, you will be granted an option to purchase an aggregate of 150,000 shares of the Company’s common stock, par value $0.01 (the “Common Stock”) at an exercise price per share equal to the Fair Market Value (as defined in the Incentive Plan) of the Common Stock on the date of the grant, intended to qualify as an “incentive stock option'' to the to the maximum extent allowed under Section 422 of the Internal Revenue Code. The option will vest as to one fourth (1/4th) of the shares, on the first anniversary of the Start Date, and the remainder will vest at one forty-eighth (1/48th) per month thereafter. All tax consequences resulting from the grant, vesting, or exercise of the option to or by you, or from the disposition by you of such shares of Common Stock, will be your responsibility. You also will be eligible for annual equity grants at the same time when other executives receive these grants.

Equity. Subject to the terms of the Company’s then applicable equity incentive plan (“Incentive Plan”) and form of option agreement, and subject to approval by the Board of Directors of the Company at the first regularly scheduled meeting following the Start Date, you will be granted an option to purchase an aggregate of one hundred and fifty thousand (150,000) shares of common stock, at an exercise price per share equal to the Fair Market Value (as defined in the Incentive Plan) of the Common Stock on the date of the grant (such grant date to be the last trading day of the month in which the Board of Directors makes the grant), intended to qualify as an “incentive stock option” to the to the maximum extent allowed under Section 422 of the Internal Revenue Code. The option will vest as to one-fourth (1/4th) of the shares, on the first anniversary of the Start Date, and the remainder will vest at one-forty-eighth (1/48th) per month thereafter. All tax consequences resulting from the grant, vesting, or exercise of the option to or by you, or from the disposition by you of such shares of Common Stock, will be your responsibility. You also will be eligible for annual equity grants at the same time when other executives receive these grants.

Stock Options. Subject to the approval of the Board or its Compensation Committee, you will be granted an option to purchase 350,000 shares of the Company’s Common Stock (the “Option”). The exercise price per share of the Option will be no less than the fair market value of a share of the Company’s Common Stock on the date of grant. The Option will be subject to the terms and conditions applicable to options granted under the Company’s stock option plan in effect at the time of the grant and the applicable stock option agreement. You will vest in 25% of the Option shares after 12 months of continuous service, and the balance will vest in equal monthly installments over the next 36 months of continuous service, as described in the applicable stock option agreement. Notwithstanding the foregoing, the Option shall also be subject to certain acceleration of vesting provisions as set forth in the Company’s Executive Severance Plan (the “Executive Severance Plan”), a copy of which is attached hereto as [Exhibit A].

Stock Options. Subject to the approval of the Company’s Board of Directors or its Compensation Committee, you will be granted an option to purchase 225,000 shares of the Company’s Common Stock (the “Option”). The exercise price per share of the Option will be determined by the Board of Directors or the Compensation Committee when the Option is granted. The Option will be subject to the terms and conditions applicable to options granted under the Company’s 2013 Stock Plan (the “Plan”) and the applicable Stock Option Agreement. You will vest in 25% of the Option shares after 12 months of continuous service with the Company, and the balance will vest in equal monthly installments over the next 36 months of continuous service, as described in the applicable Stock Option Agreement.