144 0001854399 XXXXXXXX LIVE 0000807863 Mitek Systems, Inc. 770 First Avenue Suite 425 San Diego CA 92101 619-269-6800 Garrett Gafke Officer Common Stock Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004 152529 2123240.34 44873259 04/28/2026 NASDAQ Common Stock 04/25/2026 RSU vesting Issuer N 152529 04/25/2026 Compensation Y These shares represent an estimate of shares to be sold on behalf of the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units on 04/25/2026. This sale does not represent a discretionary trade by the reporting person. 04/28/2026 /s/ Eric Bell, by Power of Attorney