<SEC-DOCUMENT>0001193125-21-089541-index.html : 20210322
<SEC-HEADER>0001193125-21-089541.hdr.sgml : 20210322
<ACCEPTANCE-DATETIME>20210322161317
ACCESSION NUMBER:		0001193125-21-089541
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210322
DATE AS OF CHANGE:		20210322

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EXAGEN INC.
		CENTRAL INDEX KEY:			0001274737
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-250015
		FILM NUMBER:		21761432

	BUSINESS ADDRESS:	
		STREET 1:		1261 LIBERTY WAY
		CITY:			VISTA
		STATE:			CA
		ZIP:			92081
		BUSINESS PHONE:		(760) 560-1501

	MAIL ADDRESS:	
		STREET 1:		1261 LIBERTY WAY
		CITY:			VISTA
		STATE:			CA
		ZIP:			92081

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EXAGEN DIAGNOSTICS INC
		DATE OF NAME CHANGE:	20031230
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>d152545d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d152545d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g152545g06a48.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g152545g06a48.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g152545g91e59.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g152545g91e59.jpg

</DOCUMENT>
</SEC-DOCUMENT>