X0508 4 2026-01-08 0001070081 PTC THERAPEUTICS, INC. PTCT 0001686217 Golden Lee Scott C/O PTC THERAPEUTICS, INC. 500 WARREN CORPORATE CENTER DRIVE WARREN NJ 07059 false true false false EVP & CHIEF MEDICAL OFFICER 1 Common Stock 2026-01-08 4 S 0 866 76.45 D 92428 D Represents shares automatically sold pursuant to irrevocable sell to cover elections entered into upon acceptance of the respective grants to satisfy tax withholding obligations in connection with the vesting of 3,539 RSUs from January 7, 2022 grants totaling 14,155 RSUs. /s/ Avraham S. Adler, Attorney-in-Fact 2026-01-12