Type	Name	Date
Indenture	First Supplemental Indenture, by and between Zogenix, Inc. and U.S. Bank Trust Company, National Association, as trustee	03/07/2022
Indenture	Indenture, between Zogenix, Inc. and U.S. Bank National Association, as trustee	09/28/2020
Indenture	Indenture, between Zogenix, Inc. and U.S. Bank National Association, as trustee	09/28/2020
Underwriting agreement	Underwriting Agreement, by and among Zogenix, Inc. and SVB Leerink LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the several underwriters named therein	03/04/2020

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, among UCB S.A., Zinc Merger Sub, Inc. and Zogenix, Inc	01/19/2022