Vesting of Award Restricted Stock. The restrictions on the Award Restricted Stock shall lapse (Award Restricted Stock with respect to which restrictions have lapsed being herein referred to as “Vested Shares”) and such Award Restricted Stock shall become non-forfeitable and 100% vested on the occurrence (if any) of the earliest of the dates set forth in [(a) through (d)] below (“Vesting Dates”):

Award of Restricted Stock Units. The Corporation hereby grants to the Participant on Award Date «RSUs» Restricted Stock Units. Each whole Restricted Stock Unit is a contingent right to receive a Restricted Stock Unit Share, granted pursuant to [Section 10] of the Plan, subject to the restrictions and other terms and conditions set forth in the Plan and this Agreement.

Grant of Restricted Stock Award. The Company hereby grants to the Participant on the Grant Date set forth above a Restricted Stock Award (the “Award”) for ​ ( ) shares of common stock of the Company, par value $.10 per share (the “Shares”), on the terms and conditions set forth herein, which Shares are subject to adjustment pursuant to [Section 4(g)] of the Plan. The Shares will be issued to the Participant for no cash consideration. The Company will cause the Shares to be issued in “book form” with its transfer agent until such time as the risk of forfeiture and other transfer restrictions set forth in this Agreement have lapsed with respect to such Shares, at which time the Company will cause the Shares to be delivered to the Participant. In the alternative, in the Company’s sole discretion, the Company will cause to be issued one or more stock certificates representing such Shares in the Participant’s name, and will hold each such certificate (together with a stock power duly executed in blank by the Participant) represented by the certificate. The Company will place a legend on such certificates describing the risk of forfeiture and other transfer restrictions set forth in this Agreement providing for the cancellation of such certificates if the Shares are forfeited as provided in Section 2 below. Until such risk of forfeiture has lapsed or the Shares subject to this Award have been forfeited pursuant to Section 2 below, the Participant is entitled to vote the Shares and to receive all dividends or other distributions attributable to such Shares, but the Participant will not have any other rights as a stockholder with respect to such Shares.

Grant of Restricted Stock Award. The Committee on behalf of the Company hereby grants to the Grantee an award of Shares of Restricted Stock (hereinafter called the “Restricted Stock”) equal to the Award Amount set forth above, on the terms and conditions set forth in this Agreement and as otherwise provided in the Plan. The date of this award of Restricted Stock is set forth above as Grant Date.

Award of Restricted Stock Units. A record of the Units awarded hereunder (the “Units”) shall be evidenced by the Company in restricted book entry accounts maintained for the Employee with the Company’s transfer agent, or such other administrator designated by the Compensation and Human Resources Committee of the Company’s Board of Directors (the “Committee”), subject to such restrictions and other terms deemed appropriate by the Committee to be applicable to such Award (the “Restrictions”), until all the Restrictions specifically set forth in this Agreement and in Section 9 of the Plan with respect to the Units shall expire or be canceled. Upon the lapse of Restrictions relating to any Units, the Company shall deliver to the participant certificates for the Shares underlying the vested Units (or an applicable book entry shall be made in the restricted book entry account maintained for the Employee for the Shares underlying the vested Units). The Units shall have no voting rights. The Units shall be credited with Dividend Equivalents as set forth in Section 9 of the Plan. However, Dividend Equivalents paid with respect to Shares underlying the Units shall be credited to a restricted book entry account maintained on the Employee’s behalf until the Restrictions with respect to the Units upon which such Dividend Equivalents were paid expire or are canceled, at which time the Company shall evidence the delivery to the Employee of all such Dividend Equivalents, with interest if any. If the Employee forfeits any Units awarded hereunder, such Units and any Dividend Equivalents credited with respect thereto, with interest, if any, shall automatically revert to the Company (without any payment by the Company to the Employee) and shall no longer be reflected in the restricted book entry account for the Employee.

Stock Award. Subject to the approval of the Board, you will be issued a stock award consisting of 95,480 shares of the Company’s Common Stock (the “Stock Award”) (this amount is equal to approximately 0.95% of the Company’s fully-diluted equity as of the date of issuance, assuming the purchase of an aggregate of $8,000,000 in the Company’s Series Seed Preferred Stock by BridgeBio at a purchase price of $1.3248 per share) at a purchase price per share equal to 100% of the fair market value of the Company’s Common Stock on the issuance date, as determined by the Board or the Compensation Committee, which determination and issuance dates shall occur as promptly as practicable following your acceptance of this offer. The shares issued under the Stock Award will be subject to the terms and conditions applicable to awards granted under the Eidos Therapeutics, Inc. 2016 Equity Incentive Plan (the “Plan”), as described in the Plan and the applicable stock award agreement, copies of which have been provided to you. The shares issued under the Stock Award will be fully vested upon issuance; provided, that in the event of any termination of your continuous service relationship with the Company, the Company shall have the option to repurchase the shares issued under the Stock Award at the fair market value of such shares on the date of repurchase (as determined under the Plan) (the “Repurchase Right”); provided, however, that the Repurchase Right shall lapse as to 25% of the shares after 12 months of your continuous service for the Company, commencing as of June 1, 2016, and the Repurchase Right shall lapse as to the remaining 75% of the shares in equal monthly installments over the next 36 months of your continuous service for the Company, as described in the applicable stock award agreement.

Stock Award. An award of shares of Common Stock or phantom share units described in Section 5(b) of the

Restricted Stock Vesting. Subject to the terms and conditions of this Agreement, the Restricted Stock shall vest solely on the basis of the passage of time over a three-year period (the “Restricted Stock Vesting Date”), as follows: fifty percent (50%) of the shares shall vest on the second anniversary date of the Effective Date of the award and the remaining fifty percent (50%) shall vest on the third anniversary date of the Effective Date of the award. Notwithstanding the foregoing, and subject to earlier vesting as provided in Section 7 hereof, Restricted Stock may vest more quickly in the event of death, Disability, Retirement, a Change in Control or other specified permitted vesting events.

Restricted Stock Units. The Administrator is authorized to grant Restricted Stock Units to any Eligible Individual. The number and terms and conditions of Restricted Stock Units shall be determined by the Administrator. The Administrator shall specify the date or dates on which the Restricted Stock Units shall become fully vested and nonforfeitable, and may specify such conditions to vesting as it deems appropriate, including conditions based on one or more Performance Criteria or other specific criteria, including service to the Company or any Affiliate, in each case, on a specified date or dates or over any period or periods, as determined by the Administrator. The Administrator shall specify, or permit the Participant to elect, the conditions and dates upon which the Shares underlying the Restricted Stock Units shall be issued, which dates shall not be earlier than the date as of which the Restricted Stock Units vest and become nonforfeitable and which conditions and dates shall be consistent with the applicable provisions of Section 409A of the Code or an exemption therefrom. On the distribution dates, the Company shall issue to the Participant one unrestricted, fully transferable Share (or the Fair Market Value of one such Share in cash) for each vested and nonforfeitable Restricted Stock Unit.

Restricted Stock Units. Each Director may elect to defer all or a portion of any Restricted Stock Unit Award.