<SEC-DOCUMENT>0001104659-24-024224-index.html : 20240214
<SEC-HEADER>0001104659-24-024224.hdr.sgml : 20240214
<ACCEPTANCE-DATETIME>20240214204641
ACCESSION NUMBER:		0001104659-24-024224
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240214
DATE AS OF CHANGE:		20240214
GROUP MEMBERS:		BONG KOH
GROUP MEMBERS:		NIMISH SHAH
GROUP MEMBERS:		VENROCK HEALTHCARE CAPITAL PARTNERS EG, L.P.
GROUP MEMBERS:		VENROCK HEALTHCARE CAPITAL PARTNERS III, L.P.
GROUP MEMBERS:		VHCP CO-INVESTMENT HOLDINGS II, LLC
GROUP MEMBERS:		VHCP CO-INVESTMENT HOLDINGS III, LLC
GROUP MEMBERS:		VHCP MANAGEMENT EG, LLC
GROUP MEMBERS:		VHCP MANAGEMENT II, LLC
GROUP MEMBERS:		VHCP MANAGEMENT III, LLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Annexon, Inc.
		CENTRAL INDEX KEY:			0001528115
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				275414423
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91583
		FILM NUMBER:		24641692

	BUSINESS ADDRESS:	
		STREET 1:		1400 SIERRA POINT PARKWAY
		STREET 2:		BLDG C, SUITE 200
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		(650)-822-5500

	MAIL ADDRESS:	
		STREET 1:		1400 SIERRA POINT PARKWAY
		STREET 2:		BLDG C, SUITE 200
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Venrock Healthcare Capital Partners II, L.P.
		CENTRAL INDEX KEY:			0001602264
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		7 BRYANT PARK
		STREET 2:		23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		650 475 3734

	MAIL ADDRESS:	
		STREET 1:		7 BRYANT PARK
		STREET 2:		23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm246235d12_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tm246235d12_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>