0001106838 2024-10-01 2025-09-30 0001106838 2025-03-31 0001106838 2025-12-12 iso4217:USD shares iso4217:USD shares true FY 0001106838 10-K/A true 2025-09-30 --09-30 2025 false 001-35570 SONNET BIOTHERAPEUTICS HOLDINGS, INC. DE 20-2932652 100 Overlook Center Suite 102 Princeton NJ 08540 (609) 375-2227 No No Yes Yes Non-accelerated Filer true false false false false 4150174 0.0001 1 None Sonnet Biotherapeutics Holdings, Inc. is filing this Amendment No. 1 to its Annual Report on Form 10-K for the year ended September 30, 2025 for purpose of substituting the correct version of the Report of Independent Registered Public Accounting Firm. Other than as disclosed above and the dating of this Amendment, there are no changes to that Annual Report.