Fifth Amendment to Amended and Restated Employment Agreement dated February 4, 2020, by and between Conformis, Inc. and Mark Augusti, its Chief Executive Officer

This Fifth Amendment to Amended and Restated Employment Agreement (“Amendment”), entered into as of February 5, 2020 (“Amendment Effective Date”), is by and between Conformis, Inc. (“Conformis”) and Mark A. Augusti (“Executive”).

WHEREAS Conformis and Executive are parties to that certain letter agreement of employment dated October 19, 2016, as amended and restated effective December 2, 2016, and all subsequent amendments thereto (“Agreement”);

WHEREAS Conformis and Executive wish to amend the Agreement as stated herein; and

WHEREAS Conformis and Executive wish to confirm and ratify the Agreement, as amended.

NOW, THEREFORE, for and in consideration of the mutual covenants and promises herein contained, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

“Beginning in 2017, following the end of each calendar year, you will be eligible for an annual target bonus of 75% of your annualized base salary (the ‘Target Bonus’), based upon achievement of both corporate and your individual goals, as determined by the Board in its sole discretion. Beginning in 2020, such Target Bonus will increase from 75% to 85% (i.e., you will be eligible to receive a target bonus of 75% in 2020 based upon achievement of 2019 goals and a target bonus of 85% in 2021 based upon achievement of 2020 goals). The determination of whether a bonus will be granted, and the amount of any such bonus, will also be determined by the Board in its sole discretion. (For the avoidance of doubt, annual bonus eligibility may range above or below target, consistent with the structure of any applicable plan as applied to similarly situated Company executives.) Any annual bonus will be payable no later than March 15 of the year following the year to which it relates. Please note that you must be an active employee on the date any bonus is distributed (the ‘Bonus Payment Date’) in order to be eligible for and to earn a bonus, as annual bonuses also serve as retention incentives. For the avoidance of doubt, you will not be eligible to receive any annual bonus for 2016.”;

“If a Qualifying Termination occurs (x) prior to three (3) months before or (y) more than twenty-four (24) months following a Change in Control Transaction, and the Qualifying Termination occurs on or after the two (2)-year anniversary of the Effective Date: (i) the Company will provide you with severance pay in the form of continuation of your base salary for a total of eighteen (18) months, such amount to be paid in accordance with the Company’s then-current payroll practices, except as otherwise specified in this letter agreement, beginning on the Company’s first regular payroll date that occurs after the Payment Date; (ii) the Company will pay to you (a) the bonus accrued by the Company for you for the calendar year that is prior to the year in which the Qualifying Termination occurs, provided the Company has not already paid you a Target Bonus (or other annual bonus) for the prior year, and (b) a bonus of eighty-five percent (85%) of your base salary for the calendar year in which the Qualifying Termination occurs; (iii) you will be eligible for the same COBRA premium assistance as set forth in Section 13.A above, subject to the same terms, conditions, and limitations as described therein; and (iv) the vesting of your then-outstanding unvested equity grants, if any, shall be accelerated in a number of shares that would have become vested had you continued as an employee of the Company for eighteen (18) months following a Qualifying Termination.”; and

“If a Qualifying Termination occurs within three (3) months prior or twenty-four (24) months following a Change in Control Transaction, and regardless of whether the Qualifying Termination occurs prior to, on, or after the two (2)-year anniversary of the Effective Date: (i) the Company will provide you with severance pay in the form of continuation of your base salary for a total of twenty-four (24) months, such amount to be paid in accordance with the Company’s then-current payroll practices, except as otherwise specified in this letter agreement, beginning on the Company’s first regular payroll date that occurs after the Payment Date; (ii) the Company will pay to you the greater of (a) the bonus accrued by the Company for you for the calendar year that is prior to the year in which the Qualifying Termination occurs, provided the Company has not already paid you a Target Bonus (or other annual bonus) for the prior year, and (b) a bonus of eighty-five percent (85%) of your base salary for the calendar year in which the Qualifying Termination occurs and (b) an amount equal to 1.5 times the Target Bonus, to be paid in one lump sum on the Company’s first regular payroll date that occurs after the Payment Date; (iii) you will be eligible for the same COBRA premium assistance as set forth in Section 13.A above, subject to the same terms, conditions, and limitations as described therein; and (iv) the vesting of one hundred percent (100%) of your then-outstanding unvested equity grants shall be accelerated, such that all unvested equity grants vest and become fully exercisable or non-forfeitable as of the date your employment terminates.”

All other terms and conditions of the Agreement remain in full force and effect.

IN WITNESS WHEREOF, the parties execute this Amendment as of the Amendment Effective Date.