X0306 4 2022-12-06 0 0001651944 DermTech, Inc. DMTK 0001739840 Wood Todd Michael C/O DERMTECH, INC. 11099 N. TORREY PINES RD. SUITE 100 LA JOLLA CA 92037 0 1 0 0 Chief Commercial Officer Common Stock 2022-12-06 4 S 0 185 2.44 D 214914 D Common Stock 2022-12-08 4 S 0 448 2.32 D 214466 D The shares were sold by the reporting person to generate proceeds used to satisfy the tax withholding obligation that arose upon the vesting of certain restricted stock units granted to the reporting person on March 29, 2021. The shares were sold by the reporting person to generate proceeds used to satisfy the tax withholding obligation that arose upon the vesting of certain restricted stock units granted to the reporting person on January 17, 2020. /s/ Jason S. Miller, attorney-in-fact 2022-12-08