Non-Employee Director Compensation Policy revised effective October 25, 2018

Annual Retainers. Each Non-Employee Director shall receive an annual retainer with a value of $40,000 for service on the Board.  

Additional Annual Retainers. In addition, a Non-Employee Director shall receive the following annual retainers:  

Audit Committee. A Non-Employee Director serving as Chairperson of the Audit Committee shall receive an additional annual retainer with a value of $20,000 for such service. A Non-Employee Director serving as a member of the Audit Committee (other than the Chairperson) shall receive an additional annual retainer with a value of $7,500 for such service.  

Compensation Committee. A Non-Employee Director serving as a member of the Compensation Committee shall receive an additional annual retainer with a value of $7,500 for such service.

Payment of Retainers.  

Timing. The annual retainers described in Sections 1(a) and 1(b) shall be earned on a quarterly basis based on a calendar quarter and shall be paid by the Company in arrears not later than the fifteenth day following the end of each calendar quarter.  

Form. The annual retainers shall be paid in the form of cash; provided that the Board may, in its discretion, permit a Non-Employee Director to elect to receive any portion of the annual retainer in the form of shares of common stock of the Company (“Common Stock”) in lieu of cash. If such an election is permitted by the Board and made by a Non-Employee Director, the number of shares of Common Stock to be paid shall be determined by dividing the portion of the annual retainer payable in the form of Common Stock by the Fair Market Value (as defined in the Company’s 2016 Incentive Award Plan or any other applicable Company equity plan then maintained by the Company (such plan, as may be amended from time to time, the “Equity Plan”)) per share of Common Stock on the date the retainer is payable. Shares issued in lieu of cash shall be fully vested and unrestricted shares of Common Stock. Any election by a Non-Employee Director to receive a portion of the annual retainer in shares of Common Stock must be made prior to the applicable payment date for such portion of the annual retainer and pursuant to an election form to be provided by the Company. An election must comply with all rules established from time to time by the Board, including the Company’s Insider Trading Compliance Policy. A Non-Employee Director may not make an election pursuant to this Section 1(c)(ii) during a Company blackout period or when the Non-Employee Director is otherwise in possession of material non-public information.  

Annual Awards. Each Non-Employee Director who (i) serves on the Board as of the date of any annual meeting of the Company’s stockholders (an “Annual Meeting”) after the Effective Date and (ii) will continue to serve as a Non-Employee Director immediately following such Annual Meeting shall be automatically granted, on the date of such Annual Meeting, an option to purchase the number of shares of Common Stock (at a per-share exercise price equal to the closing price per share of the Common Stock on the date of such annual meeting (or on the last preceding trading day if the date of the annual meeting is not a trading day)) that has an aggregate fair value on the date of grant of $90,000 (calculated in accordance with FASB Accounting Codification Topic 718 (“ASC 718”) using the same formula and assumptions as the Company utilized for the purpose of valuing outstanding options in its then-most recently prepared audited annual financial statement). The awards described in this Section 2(a) shall be referred to as the “Annual Awards.” For the avoidance of doubt, a Non-Employee Director elected for the first time to the Board at an Annual Meeting shall receive only an Annual Award in connection with such election, and shall not receive any Initial Award on the date of such Annual Meeting as well.  

Initial Awards. Except as otherwise determined by the Board, each Non-Employee Director who is initially elected or appointed to the Board after the Effective Date on any date other than the date of an Annual Meeting shall be automatically granted, on the date of such Non-Employee Director’s initial election or appointment (such Non-Employee Director’s “Start Date”), an award of an option to purchase shares of Common Stock (at a per-share exercise price equal to the closing price of the Common Stock on the date of such initial election or appointment (or on the last preceding trading day if the date of the initial election or appointment is not a trading day)) that has an aggregate fair value on such Non-Employee Director’s Start Date equal to the product of (i) $90,000 (calculated in accordance with ASC 718 using the same formula and assumptions as the Company utilized for the purpose of valuing outstanding options in its  then most recently prepared audited annual financial statement) and (ii) a fraction, the numerator of which is (x) 365 minus (y) the number of days in the period beginning on the date of the Annual Meeting immediately preceding such Non-Employee Director’s Start Date (or, if no such Annual Meeting has occurred, the Effective Date) and ending on such Non-Employee Director’s Start Date and the denominator of which is 365. The awards described in this Section 2(b) shall be referred to as “Initial Awards.” Notwithstanding the foregoing, the Board in its sole discretion may determine that the Initial Award for any Non-Employee Director be granted in the form of restricted stock units with equivalent value on the date of grant. For the avoidance of doubt, no Non-Employee Director shall be granted more than one Initial Award.  

Termination of Employment of Employee Directors. Members of the Board who are employees of the Company or any parent or subsidiary of the Company who subsequently terminate their employment with the Company and any parent or subsidiary of the Company and remain on the Board will not receive an Initial Award pursuant to Section 2(b) above, but to the extent that they are otherwise eligible, will be eligible to receive, after termination from service with the Company and any parent or subsidiary of the Company, Annual Awards as described in Section 2(a) above.  

Vesting of Awards Granted to Non-Employee Directors. Each Annual Award and Initial Award shall vest and become exercisable on the earlier of (x) the day immediately preceding the date of the first Annual Meeting following the date of grant and (y) the first anniversary of the date of grant, subject to the Non-Employee Director continuing in service through the applicable vesting date. No portion of an Annual Award or Initial Award that is unvested or unexercisable at the time of a Non-Employee Director’s termination of service on the Board shall become vested and exercisable thereafter. All of a Non-Employee Director’s Annual Awards and Initial Awards shall vest in full immediately prior to the occurrence of a Change in Control (as defined in the Equity Plan), to the extent outstanding at such time.