Sonnet to Present at the MedInvest Biotech & Pharma Conference

Company Overview - Sonnet BioTherapeutics Holdings, Inc. is a clinical-stage biotechnology company focused on developing immunotherapeutic drugs targeted to the tumor microenvironment (TME) [1] - The company utilizes a proprietary platform known as FHAB (Fully Human Albumin-Binding) for developing targeted biologic drugs [2] Upcoming Events - Raghu Rao, the Interim Chief Executive Officer, will present at the MedInvest Biotech & Pharma Conference on September 25, 2025, at 9:40 AM PT [1] - Management will also be available for one-on-one meetings with qualified investors registered for the conference [2] Technology and Product Pipeline - The FHAB technology employs a fully human single chain antibody fragment that binds to human serum albumin for targeted transport to tumor and lymphatic tissues [2] - Sonnet's lead program, SON-1010 (IL-12-FHAB), is in development for treating solid tumors, certain sarcomas, and ovarian cancer, currently in a Phase 1/2a study in collaboration with Roche [3] - The second program, SON-1210 (IL12-FHAB-IL15), is being evaluated for solid tumors, with an upcoming investigator-initiated Phase 1/2a study for pancreatic cancer [3]