September 27, 2024 Kurt Gustafson Executive Vice President, Finance and Chief Financial Officer OmniAb, Inc. 5980 Horton Street, Suite 600 Emeryville, CA 94608 Re: OmniAb, Inc. Form 10-K filed March 25, 2024 Dear Kurt Gustafson: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Industrial Applications and Services