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Ladenburg Acts as Exclusive Placement Agent in the $3.4 Million Offering for Sonnet BioTherapeutics Holdings, Inc.

Transaction Information
Sonnet BioTherapeutics Holdings, Inc. (NASDAQ:SONN) (the "Company" or "Sonnet") announced the entry into a definitive agreement for the immediate exercise of certain outstanding warrants to purchase up to an aggregate of 2,828,500 shares of common stock, issued by Sonnet in October 2023 (the "Existing Warrants"), at a reduced exercise price of $1.20 per share. The shares of common stock issuable upon exercise of the Existing Warrants are registered pursuant to an effective registration statement on Form S-1 (File No. 333-274581).

Ladenburg Thalmann & Co, Inc. acted as the exclusive placement agent for the offering.

The gross proceeds to Sonnet from the exercise of the Existing Warrants are expected to be approximately $3.4 million, prior to deducting placement agent fees and offering expenses. The Company intends to use the net proceeds for research and development, including clinical trials, working capital, the repayment of all or a portion of liabilities, and general corporate purposes.

About Sonnet BioTherapeutics
Sonnet BioTherapeutics is an oncology-focused biotechnology company with a proprietary platform for innovating biologic drugs of single or bifunctional action. Known as FHAB (Fully Human Albumin Binding), the technology utilizes a fully human single chain antibody fragment (scFv) that binds to and "hitch-hikes" on human serum albumin (HSA) for transport to target tissues. Sonnet's FHAB was designed to specifically target tumor and lymphatic tissue, with an improved therapeutic window for optimizing the safety and efficacy of immune modulating biologic drugs. FHAB is the foundation of a modular, plug-and-play construct for potentiating a range of large molecule therapeutic classes, including cytokines, peptides, antibodies, and vaccines. For more information, please visit www.sonnetbio.com.

The information and material presented is provided for informational purposes only and are not to be used or considered as an offer or the solicitation of an offer to sell or buy any securities mentioned herein.