Type	Name	Date
Underwriting agreement	Underwriting Agreement, among Synlogic, Inc. and Jefferies LLC and SVB Leerink LLC, as representatives of the several underwriters named therein	09/23/2021
Underwriting agreement	Underwriting Agreement, among Synlogic, Inc. and Leerink Partners LLC and Piper Jaffray & Co., as representatives of the several underwriters named therein	01/24/2018