X0306 4 2021-06-04 0 0001716621 Ra Medical Systems, Inc. RMED 0001208236 COLOMBATTO MARTIN J C/O RA MEDICAL SYSTEMS, INC. 2070 LAS PALMAS DRIVE CARLSBAD CA 92011 1 0 0 0 Common Stock 2021-06-04 4 A 0 4000 0.00 A 29439 D Common Stock 1500 I See Footnote Reported shares represents a grant of restricted stock awards (the "RSAs") pursuant to Ra Medical Systems, Inc.'s 2018 Equity Incentive Plan. Each restricted stock award represents a contingent right to receive one share of Ra Medical Systems, Inc. common stock. The RSAs will vest on the earlier of (i) June 4, 2022, or (ii) the day prior to the date of the Stockholder's Annual Meeting next following June 4, 2021, subject to the reporting person's continued service. Shares held of record by the M Colombatto Trust, for which the reporting person serves as trustee. /s/ Daniel Horwood, as Attorney-in-Fact 2021-06-08