<SEC-DOCUMENT>0001104659-21-005822-index.html : 20210120
<SEC-HEADER>0001104659-21-005822.hdr.sgml : 20210120
<ACCEPTANCE-DATETIME>20210120160520
ACCESSION NUMBER:		0001104659-21-005822
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210119
FILED AS OF DATE:		20210120
DATE AS OF CHANGE:		20210120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smith Hunter C
		CENTRAL INDEX KEY:			0001636385

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38223
		FILM NUMBER:		21538801

	MAIL ADDRESS:	
		STREET 1:		C/O GENESEE & WYOMING INC.
		STREET 2:		20 WEST AVENUE
		CITY:			DARIEN
		STATE:			CT
		ZIP:			06820

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RHYTHM PHARMACEUTICALS, INC.
		CENTRAL INDEX KEY:			0001649904
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				462159271
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		222 BERKELEY STREET
		STREET 2:		12TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		857-264-4280

	MAIL ADDRESS:	
		STREET 1:		222 BERKELEY STREET
		STREET 2:		12TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RHYTHM METABOLIC, INC.
		DATE OF NAME CHANGE:	20150803
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm213664-1_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm213664-1_4seq1.html

Document 1 - RAW XML: tm213664-1_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>