X0306 4 2023-01-03 0 0001846253 OmniAb, Inc. OABI 0001237556 FOEHR MATTHEW W C/O OMNIAB, INC. 5980 HORTON STREET, SUITE 600 EMERYVILLE CA 94608 1 1 0 0 President & CEO Common Stock 2023-01-03 4 A 0 79665 0.00 A 1906125 D Represents restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in three equal annual installments beginning on December 7, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date. /s/ Charles S. Berkman, Attorney-in-Fact 2023-01-05