<SEC-DOCUMENT>0001415889-25-001307-index.html : 20250110
<SEC-HEADER>0001415889-25-001307.hdr.sgml : 20250110
<ACCEPTANCE-DATETIME>20250110180014
ACCESSION NUMBER:		0001415889-25-001307
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250109
FILED AS OF DATE:		20250110
DATE AS OF CHANGE:		20250110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JONES WILLIAM A JR
		CENTRAL INDEX KEY:			0001373097
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39402
		FILM NUMBER:		25524191

	MAIL ADDRESS:	
		STREET 1:		NITROMED, INC.
		STREET 2:		125 SPRING STREET
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421

ISSUER:		

	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

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3-01102025_110110.xml
<TEXT>
Document 1 - file: form3-01102025_110110.html

Document 1 - RAW XML: form3-01102025_110110.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24-01102025_110122.htm
<TEXT>
Document 2 - file: ex24-01102025_110122.htm

</DOCUMENT>
</SEC-DOCUMENT>