OmniAb, Inc. $(OABI)$ has announced a definitive securities purchase agreement for a private placement, issuing and selling 21,254,106 shares of its common stock at a price of $1.40 per share, or $1.85 per share for officer and director participation. The transaction is expected to generate approximately $30 million in gross proceeds, prior to the deduction of placement agent fees and other related expenses. The funds raised will be utilized for general corporate purposes. The private placement is anticipated to close around August 26, 2025, subject to customary closing conditions. Leerink Partners is serving as the sole placement agent for this financing, which involves participation from both new and existing top-tier investors, alongside company officers and directors.