Type	Name	Date
Underwriting agreement	Underwriting Agreement, by and among Arena Pharmaceuticals and Citigroup Global Markets Inc. and Leerink Partners LLC, as representatives of the several underwriters named therein	03/22/2018
Underwriting agreement	Underwriting Agreement, by and among Arena Pharmaceuticals and Citigroup Global Markets Inc. and Leerink Partners LLC, as representatives of the several underwriters named therein	07/13/2017
Underwriting agreement	Underwriting Agreement, by and among Arena Pharmaceuticals and Citigroup Global Markets Inc. and Leerink Partners LLC, as representatives of the several underwriters named therein	04/18/2017
Underwriting agreement	Underwriting Agreement, by and among Arena, Jefferies LLC and Piper Jaffray & Co., as representatives of the several underwriters named therein	01/23/2015
Securities purchase agreement	Securities Purchase Agreement	08/06/2010