<SEC-DOCUMENT>0000950170-23-016336-index.html : 20230501
<SEC-HEADER>0000950170-23-016336.hdr.sgml : 20230501
<ACCEPTANCE-DATETIME>20230501171928
ACCESSION NUMBER:		0000950170-23-016336
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20230501
DATE AS OF CHANGE:		20230501

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNLOGIC, INC.
		CENTRAL INDEX KEY:			0001527599
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				261824804
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37566
		FILM NUMBER:		23875181

	BUSINESS ADDRESS:	
		STREET 1:		301 BINNEY STREET
		STREET 2:		SUITE 402
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-401-9975

	MAIL ADDRESS:	
		STREET 1:		301 BINNEY STREET
		STREET 2:		SUITE 402
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Mirna Therapeutics, Inc.
		DATE OF NAME CHANGE:	20110809
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>sybx_defa14a_2022.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: sybx_defa14a_2022.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img22762782_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img22762782_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>img22762782_1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: img22762782_1.jpg

</DOCUMENT>
</SEC-DOCUMENT>