<SEC-DOCUMENT>0001104659-21-043929-index.html : 20210330
<SEC-HEADER>0001104659-21-043929.hdr.sgml : 20210330
<ACCEPTANCE-DATETIME>20210330164758
ACCESSION NUMBER:		0001104659-21-043929
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20200329
FILED AS OF DATE:		20210330
DATE AS OF CHANGE:		20210330

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Roberts William T.
		CENTRAL INDEX KEY:			0001852360

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38223
		FILM NUMBER:		21786711

	MAIL ADDRESS:	
		STREET 1:		C/O RHYTHM PHARMACEUTICALS
		STREET 2:		222 BERKELEY STREET, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

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>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm2111372-2_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm2111372-2_3seq1.html

Document 1 - RAW XML: tm2111372-2_3seq1.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>tm2111372d2_ex24.htm
<DESCRIPTION>EXHIBIT 24
<TEXT>
Document 2 - file: tm2111372d2_ex24.htm

</DOCUMENT>
</SEC-DOCUMENT>