<SEC-DOCUMENT>0001493152-20-000835-index.html : 20200121
<SEC-HEADER>0001493152-20-000835.hdr.sgml : 20200121
<ACCEPTANCE-DATETIME>20200121114731
ACCESSION NUMBER:		0001493152-20-000835
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200121
DATE AS OF CHANGE:		20200121

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Wave Life Sciences Ltd.
		CENTRAL INDEX KEY:			0001631574
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			U0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-89180
		FILM NUMBER:		20535673

	BUSINESS ADDRESS:	
		STREET 1:		7 STRAITS VIEW
		STREET 2:		#12-00, MARINA ONE EAST TOWER
		CITY:			SINGAPORE
		STATE:			U0
		ZIP:			018936
		BUSINESS PHONE:		617-949-2900

	MAIL ADDRESS:	
		STREET 1:		733 CONCORD AVENUE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WAVE Life Sciences Ltd.
		DATE OF NAME CHANGE:	20170516

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Wave Life Sciences Ltd.
		DATE OF NAME CHANGE:	20151106

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Wave Life Sciences LTD.
		DATE OF NAME CHANGE:	20151106

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RTW INVESTMENTS, LP
		CENTRAL INDEX KEY:			0001493215
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		412 WEST 15TH STREET
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10011
		BUSINESS PHONE:		646-597-6980

	MAIL ADDRESS:	
		STREET 1:		412 WEST 15TH STREET
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10011

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RTW INVESTMENTS, LLC
		DATE OF NAME CHANGE:	20100602
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>formsc13g.htm
<TEXT>
Document 1 - file: formsc13g.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>ex1.htm
<TEXT>
Document 2 - file: ex1.htm

</DOCUMENT>
</SEC-DOCUMENT>