Exhibit 99.1 OmniAb Reports First Quarter 2024 Financial Results and Business Highlights Conference Call with Slides Begins at 4:30 p.m. Eastern Time Today EMERYVILLE, Calif. (May 9, 2024) – OmniAb, Inc. (NASDAQ: OABI) today reported financial results for the three months ended March 31, 2024, and provided operating and partner program updates. “The OmniAb team continued to make great progress this past quarter in advancing and expanding our portfolio and partnership base. We added three new platform licens ...