<SEC-DOCUMENT>0001104659-24-067977-index.html : 20240603
<SEC-HEADER>0001104659-24-067977.hdr.sgml : 20240603
<ACCEPTANCE-DATETIME>20240603205357
ACCESSION NUMBER:		0001104659-24-067977
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20240603
DATE AS OF CHANGE:		20240603
GROUP MEMBERS:		PETER KOLCHINSKY
GROUP MEMBERS:		RA CAPITAL HEALTHCARE FUND, L.P.
GROUP MEMBERS:		RAJEEV SHAH

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tourmaline Bio, Inc.
		CENTRAL INDEX KEY:			0001827506
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-92543
		FILM NUMBER:		241015764

	BUSINESS ADDRESS:	
		STREET 1:		27 WEST 24TH STREET
		STREET 2:		SUITE 702
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010
		BUSINESS PHONE:		646-481-9832

	MAIL ADDRESS:	
		STREET 1:		27 WEST 24TH STREET
		STREET 2:		SUITE 702
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Talaris Therapeutics, Inc.
		DATE OF NAME CHANGE:	20201007

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, L.P.
		CENTRAL INDEX KEY:			0001346824
		ORGANIZATION NAME:           	
		IRS NUMBER:				830406777
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RA CAPITAL MANAGEMENT, LLC
		DATE OF NAME CHANGE:	20051213
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>tm2416352d1_sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: tm2416352d1_sc13g.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>tm2416352d1_ex-1.htm
<DESCRIPTION>EXHIBIT 1
<TEXT>
Document 2 - file: tm2416352d1_ex-1.htm

</DOCUMENT>
</SEC-DOCUMENT>