<SEC-DOCUMENT>0001104659-24-023820-index.html : 20240214
<SEC-HEADER>0001104659-24-023820.hdr.sgml : 20240214
<ACCEPTANCE-DATETIME>20240214163242
ACCESSION NUMBER:		0001104659-24-023820
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20240214
DATE AS OF CHANGE:		20240214
GROUP MEMBERS:		ALEX NOAH INVESTORS, INC.
GROUP MEMBERS:		JONATHAN I. COPE
GROUP MEMBERS:		JOSHUA B. SCHEINFELD
GROUP MEMBERS:		LINCOLN PARK CAPITAL, LLC
GROUP MEMBERS:		ROCKLEDGE CAPITAL CORP

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			X4 Pharmaceuticals, Inc
		CENTRAL INDEX KEY:			0001501697
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				273181608
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90199
		FILM NUMBER:		24639216

	BUSINESS ADDRESS:	
		STREET 1:		61 NORTH BEACON STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02134
		BUSINESS PHONE:		857-529-8300

	MAIL ADDRESS:	
		STREET 1:		61 NORTH BEACON STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02134

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Arsanis, Inc.
		DATE OF NAME CHANGE:	20100920

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Lincoln Park Capital Fund, LLC
		CENTRAL INDEX KEY:			0001592644
		ORGANIZATION NAME:           	
		IRS NUMBER:				010939472
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		440 NORTH WELLS STREET
		STREET 2:		SUITE 410
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
		BUSINESS PHONE:		312-822-9300

	MAIL ADDRESS:	
		STREET 1:		440 NORTH WELLS STREET
		STREET 2:		SUITE 410
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm246286d6_sc13ga.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
Document 1 - file: tm246286d6_sc13ga.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tm246286d6_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: tm246286d6_ex99-1.htm

</DOCUMENT>
</SEC-DOCUMENT>