<SEC-DOCUMENT>0001274737-21-000004-index.html : 20210111
<SEC-HEADER>0001274737-21-000004.hdr.sgml : 20210111
<ACCEPTANCE-DATETIME>20210111070030
ACCESSION NUMBER:		0001274737-21-000004
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20210110
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210111
DATE AS OF CHANGE:		20210111

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39049
		FILM NUMBER:		21519069

	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>8-K
<SEQUENCE>1
<FILENAME>xgnxq420preliminaryfinanci.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: xgnxq420preliminaryfinanci.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>exagen4q20preliminaryfinan.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: exagen4q20preliminaryfinan.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image_01.jpg
<TEXT>
Document 3 - file: image_01.jpg

</DOCUMENT>
</SEC-DOCUMENT>