<SEC-DOCUMENT>0001193125-21-093470-index.html : 20210325
<SEC-HEADER>0001193125-21-093470.hdr.sgml : 20210325
<ACCEPTANCE-DATETIME>20210325083059
ACCESSION NUMBER:		0001193125-21-093470
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20210325
DATE AS OF CHANGE:		20210325
EFFECTIVENESS DATE:		20210325

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:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-254688
		FILM NUMBER:		21770176

	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>
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<TYPE>S-8
<SEQUENCE>1
<FILENAME>d171240ds8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: d171240ds8.htm

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<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d171240dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d171240dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d171240dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d171240dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g171240dsp007logo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g171240dsp007logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g171240dsp008logo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g171240dsp008logo.jpg

</DOCUMENT>
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