<SEC-DOCUMENT>0001144204-18-057716-index.html : 20181107
<SEC-HEADER>0001144204-18-057716.hdr.sgml : 20181107
<ACCEPTANCE-DATETIME>20181106193059
ACCESSION NUMBER:		0001144204-18-057716
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20181107
DATE AS OF CHANGE:		20181106
GROUP MEMBERS:		PETER KOLCHINSKY

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Dicerna Pharmaceuticals Inc
		CENTRAL INDEX KEY:			0001399529
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87866
		FILM NUMBER:		181164408

	BUSINESS ADDRESS:	
		STREET 1:		87 CAMBRIDGEPARK DRIVE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02140
		BUSINESS PHONE:		617 621 8097

	MAIL ADDRESS:	
		STREET 1:		87 CAMBRIDGEPARK DRIVE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02140

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001346824
		IRS NUMBER:				830406777
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>tv506542_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: tv506542_sc13da.htm
</DOCUMENT> </SEC-DOCUMENT>