Type	Name	Date
Underwriting agreement	Underwriting Agreement, between the Company and Goldman, Sachs & Co. and J.P. Morgan Securities LLC, as representatives of the several Underwriters named therein	05/20/2015

Type	Name	Date
By-Laws	Amended and Restated By-Laws of Momenta Pharmaceuticals, Inc	10/01/2020

Type	Name	Date
Employment agreement	Executive Employment Agreement, by and between Momenta Pharmaceuticals, Inc. and Michelle Robertson	04/19/2019

Type	Name	Date
Lease agreement	Third Amendment to Lease, by and between BMR-Rodgers Street LLC and Momenta Pharmaceuticals, Inc	01/05/2016