X0306 4 2022-01-28 0 0001367920 CONCERT PHARMACEUTICALS, INC. CNCE 0001703041 Munsie Jeffrey A C/O CONCERT PHARMACEUTICALS, INC. 65 HAYDEN AVENUE, SUITE 3000N LEXINGTON MA 02421 0 1 0 0 Chief Legal Officer Common Stock 2022-01-28 4 A 0 63700 A 106959 D Represents a grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Common Stock of the Issuer. These RSUs vest in equal annual installments over a three-year period measured from the date of grant. The amount listed represents the maximum number of shares of Common Stock of the Issuer that may be delivered pursuant to the grant. Not applicable. /s/ Jeffrey A. Munsie 2022-02-01