Type	Name	Date
Indenture	First Supplemental Indenture, between Proofpoint, Inc. and Wells Fargo Bank, National Association	08/31/2021
Indenture	Indenture between Proofpoint, Inc. and Wells Fargo Bank, National Association (including the form of 0.25% Convertible Senior Notes due 2024)	08/23/2019
Indenture	Indenture between the Company and Wells Fargo (including the form of 0.75% Convertible Senior Notes due 2020)	06/17/2015
Indenture	Indenture between Proofpoint, Inc. and Wells Fargo Bank, National Association (including the form of 1.25% Convertible Senior Notes due 2018)	12/11/2013