<SEC-DOCUMENT>0001193125-21-039827-index.html : 20210212
<SEC-HEADER>0001193125-21-039827.hdr.sgml : 20210212
<ACCEPTANCE-DATETIME>20210212070000
ACCESSION NUMBER:		0001193125-21-039827
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210212
DATE AS OF CHANGE:		20210212

SUBJECT COMPANY:	

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

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91583
		FILM NUMBER:		21622639

	BUSINESS ADDRESS:	
		STREET 1:		180 KIMBALL WAY
		STREET 2:		SUITE 200
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		(650)-822-5500

	MAIL ADDRESS:	
		STREET 1:		180 KIMBALL WAY
		STREET 2:		SUITE 200
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Satter Muneer A
		CENTRAL INDEX KEY:			0001315797

	FILING VALUES:
		FORM TYPE:		SC 13G

	MAIL ADDRESS:	
		STREET 1:		C/O SATTER INVESTMENT MANAGEMENT, LLC
		STREET 2:		676 NORTH MICHIGAN AVENUE, SUITE 4000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>d115689dsc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: d115689dsc13g.htm

</DOCUMENT>
</SEC-DOCUMENT>