X0306 4 2021-04-07 0 0001195734 POTBELLY CORP PBPB 0001809361 Cirulis Steven 111 N. CANAL SUITE 850 CHICAGO IL 60606 0 1 0 0 SVP, Chief Financial Officer Common Stock 2021-04-07 4 S 0 2963 6.12 D 251307 D Represents shares automatically sold pursuant to an irrevocable sell to cover election to satisfy withholding obligations in connection with the vesting of 10,000 of the Reporting Person's restricted stock units on April 6, 2021. /s/ Steven Cirulis 2021-04-09