X0306 4 2020-11-20 0 0001716621 Ra Medical Systems, Inc. RMED 0001756566 Horwood Daniel C/O RA MEDICAL SYSTEMS, INC. 2070 LAS PALMAS DR. CARLSBAD CA 92011 0 1 0 0 General Counsel Common Stock 2020-11-20 5 A 0 E 200 5.4315 A 21896 D These shares were acquired through the issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c). /s/ Daniel Horwood 2020-11-24