<SEC-DOCUMENT>0000899243-22-022178-index.html : 20220613
<SEC-HEADER>0000899243-22-022178.hdr.sgml : 20220613
<ACCEPTANCE-DATETIME>20220613161532
ACCESSION NUMBER:		0000899243-22-022178
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220609
FILED AS OF DATE:		20220613
DATE AS OF CHANGE:		20220613

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Heffernan Michael Thomas
		CENTRAL INDEX KEY:			0001448914

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37566
		FILM NUMBER:		221011780

	MAIL ADDRESS:	
		STREET 1:		C/O CORNERSTONE THERAPEUTICS INC.
		STREET 2:		1255 CRESCENT GREEN DRIVE, SUITE 250
		CITY:			CARY
		STATE:			NC
		ZIP:			27518

ISSUER:		

	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

	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>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
</SEC-DOCUMENT>