X0306 4 2021-05-25 0 0001106838 Sonnet BioTherapeutics Holdings, Inc. SONN 0001663251 Griffith Donald J. 100 OVERLOOK CENTER, SUITE 102 PRINCETON, NJ 08540 1 0 0 0 Common Stock 2021-05-25 4 F 0 4235 1.51 D 95693 D The price reported in Column 4 is a weighted average price. These shares were sold by the Issuer in multiple transactions at prices ranging from $1.49 to $1.55 per share, inclusive. The Reporting Person undertakes to provide to Issuer any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. /s/ John Harry Cross III, power of attorney 2021-05-28