Certain Pre-funded Warrants of Scholar Rock Holding Corporation are subject to a Lock-Up Agreement Ending on 11-DEC-2023. These Pre-funded Warrants will be under lockup for 61 days starting from 11-OCT-2023 to 11-DEC-2023.

Details:
Directors and executive officers have entered into lock-up agreements with the underwriters prior to the commencement of this offering pursuant to which each of these persons or entities, with limited exceptions, for a period of 60 days after the date of this prospectus supplement, may not, without the prior written consent of J.P. Morgan Securities LLC.