Base Annual Retainer. If a Non-Employee Director is elected or appointed to the Board at any time other than at an Annual Meeting, the Base Annual Retainer for the initial term that lasts from the date of election or appointment until the first Annual Meeting to occur thereafter will be reduced on a pro-rata basis, such that the amount payable will be equal to the Base Annual Retainer multiplied by a fraction, the numerator of which is 12 minus the whole number of months from the date of the preceding Annual Meeting until the date of election or appointment and the denominator of which is 12. Subject to Section 4 and Section 5, the ZSU portion of the prorated Base Annual Retainer will be granted on the Base Annual Retainer Vesting Start Date. The number of ZSUs granted will be calculated using the Fair Market Value (as defined in the Plan) of the Class A common stock of the Company as of the Base Annual Retainer Vesting Start Date, rounded down to the nearest whole ZSU.

Annual Retainer Election. For each calendar year of the Non-Employee Director’s service, the Non-Employee Director will have the opportunity to elect in writing in a form provided by the Company and delivered to the Company, prior to January 1 of the applicable year, payment of the Annual Retainer in cash or an equivalent number of Restricted Stock Units (as defined in the Company’s 2014 Incentive Award Plan or any other applicable Company equity incentive plan then-maintained by the Company (the “Equity Plan”)), determined by dividing # the Annual Retainer by # the Fair Market Value (as defined in the Plan) of one share of the Company’s common stock on the last trading day prior to January 1 of the year to which the Annual Retainer relates. Restricted Stock Units will be issued under, and subject to the terms of, the Equity Plan and a separate restricted stock unit agreement and will vest, subject to the Non-Employee Director’s continued service, in one single installment on January 1 of the year following the year to which the Annual Retainer relates. Unless otherwise determined by the Board, unvested Restricted Stock Units will be forfeited upon the Non-Employee Director’s termination of service.

BASIC CASH RETAINER. Each Eligible Participant shall be paid a Basic Cash Retainer for service as a director during each Plan Year, payable in quarterly installments in advance. The amount of the Basic Cash Retainer is set forth on [Schedule I], which may be amended from time to time by the Committee. Each person who first becomes an Eligible Participant on a date other than an Annual Meeting Date shall be paid a pro rata amount of the Basic Cash Retainer for that Plan Year to reflect the actual number of days such Person will serve on the Board in the Plan Year (a “Prorated Basic Cash Retainer”). The first installment of a Prorated Basic Cash Retainer shall be paid on or about the first day that such Person becomes an Eligible Participant and shall be a pro rata amount of the Basic Cash Retainer for that fiscal quarter to reflect the actual number of days such Person will serve on the Board in that fiscal quarter, with normal quarterly installments to follow for the remainder of the Plan Year, as described above.

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. Executive shall be eligible to participate in any equity compensation plan or similar program adopted by the Company when approved by the Board and, if applicable, the Company’s shareholders, for executives at Executive’s level. The amount awarded, if any, to the Executive under any such plan shall be in the discretion of the Board or any committee administering such plan and shall be subject to the terms and conditions of any plan or program adopted or approved by the Board. Any such grants will be effective when made and shall be subject to terms and conditions to be imposed by the Board under the Company’s plans, programs or applicable award agreement.

Equity. Notwithstanding the terms of any stock option agreement, restricted stock agreement or other stock award (“Equity Awards”), other than Equity Award terms more favorable to the Covered Employee, the portion of any unvested Equity Awards held by the Covered Employee on the Date of Termination (other than Equity Awards that vest on the basis of performance and do not provide solely for time-based vesting) which would have vested if the Covered Employee had remained employed by the Company or Applicable Subsidiary during the applicable Severance Period shall immediately vest upon the Release Effective Date.

Equity. Notwithstanding anything to the contrary in this Agreement or the applicable equity documents, if you: # comply with all obligations contained in this Agreement, excluding your obligations under the Consulting Agreement set forth in Section 5, and # timely sign and return the Termination of Services Release attached hereto as Exhibit C (the “Termination of Services Release”) the Company will accelerate the vesting of all unvested Stock Awards held by you as of the termination of the Consulting Period with respect to the portion of the shares subject thereto that would have vested during the twelve (12) month period following the termination of the Consulting Period, had you continued to provide services to the Company during such period. Furthermore, should you satisfy the conditions for receipt of the equity acceleration as set forth in the preceding sentence, effective as of the termination of the Consulting Period, your right to exercise any vested Stock Awards shall be extended until the date that is one (1) year following the termination of the Consulting Period (e.g. if the Consulting Period terminates September 16, 2021, the exercise period would be extended until September 16, 2022) (together with the equity acceleration, the “Equity Benefits”). You understand that as a result of the extended exercise period described above, applicable tax rules require that any options held by you that qualify for tax purposes as incentive stock options shall automatically be converted to non-statutory stock options for tax purposes as of the Effective Date of this Agreement according to the terms of the applicable equity incentive plan and of the Stock Awards thereunder, and that you shall consult your own tax advisor regarding the extended exercise period and the tax consequences of option transactions. Except as expressly modified herein, your Stock Awards will continue to be governed by the terms of the applicable equity incentive plan and other Stock Award documents, and your rights to exercise any vested Stock Awards shall be as set forth in the applicable equity incentive plan and/or the applicable Stock Award notices and agreements.

Equity. The equity awards held by the Executive shall continue to be governed by the terms and conditions of the Company’s applicable equity incentive plan(s) and the applicable award agreement(s) governing the terms of such equity awards held by the Executive (collectively, the “Equity Documents”); provided, however, and notwithstanding anything to the contrary in the Equity Documents, Section 6(a)(ii) of this Agreement shall apply in the event of a termination by the Company without Cause or by the Executive for Good Reason in either event within the Change in Control Period (as such terms are defined below).

Equity. As soon as practicable following the execution of this Agreement, and subject to the approval of the Company’s Board of Directors the Executive shall be granted an incentive stock option (the “Option”) under resTORbio’s Stock Incentive Plan (the “Plan”) to purchase 295,000 of shares of Common Stock. The Option shall vest over four years from the Start Date with 1/4 of the shares underlying such option vesting on the first year anniversary of such Start Date and the remaining 3/4 of such shares vesting in 12 equal quarterly installments following such first year anniversary, provided that the Executive is engaged by the Company on each such vesting date. The Option shall have an exercise price equal to the fair market value of the Common Stock on the date of grant and shall be subject to the provisions set forth in the Plan and the Form of Incentive Stock Option Agreement previously approved by the Board.

Equity. Within 5 days of the Date of Hire, the Employee shall be eligible to participate in Kaleido’s equity incentive program and be granted, at such time as the Board determines, an option to purchase 600,000 shares of common stock (such equity award is referred to as the “Equity Award”). Subject to the Board’s approval of the Equity Award, the Equity Award will vest according to the following schedule: 25% of the Equity Award will vest on the first anniversary of the Date of Hire, and the remaining 75% of the Equity Award will vest in equal installments at the end of each calendar quarter over the next three years, provided that, in each case, that the Employee continues to provide continuous services to the Company as of each such vesting date. The grant of the Equity Award will be conditioned upon, among other things, the Employee’s execution of all necessary documentation relating to the Equity Award as determined by the Company (all such documentation is collectively referred to as the “Equity Award Documentation”). In all respects, these options will be governed by the 2019 Stock Option and Incentive Plan and the applicable Stock Option Agreement.