X0306 4/A 2022-05-09 2022-05-11 0 0001651944 DermTech, Inc. DMTK 0001230057 ROSENMAN HERM C/O DERMTECH, INC. 11099 N. TORREY PINES RD. SUITE 100 LA JOLLA CA 92037 1 0 0 0 Common Stock 2022-05-09 4 P 0 20000 6.8649 A 72382 D On May 11, 2022, the reporting person filed a Form 4 which inadvertently reported that, following his purchase of 20,000 shares of common stock of the issuer, he beneficially owned 72,832 shares of common stock of the issuer. In fact, as reported by this amendment, the reporting person beneficially owned 72,382 shares of common stock of the issuer at such time. /s/ Jason S. Miller, attorney-in-fact 2022-05-31