X0609 4 2026-06-17 0 0001846253 OmniAb, Inc. OABI 0001410466 Love Steven false 5980 HORTON STREET, STE 600 EMERYVILLE CA 94608 1 0 0 0 0 Common Stock 2026-06-17 4 M 0 20000 A 91666 D Restricted Stock Units 2026-06-17 4 M 0 20000 0 D Common Stock 20000 13334 D Restricted Stock Units 2026-06-17 4 A 0 20000 0 A Common Stock 20000 33334 D Stock Option (right to buy) 2.03 2026-06-17 4 A 0 40000 0 A 2036-06-17 Common Stock 40000 40000 D Represents the vesting of an RSU granted on June 17, 2025, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date. Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the date of grant. By: /s/ Charles S. Berkman, Attorney-in-Fact For: Steven Love 2026-06-18