<SEC-DOCUMENT>0001193125-15-051223-index.html : 20150219
<SEC-HEADER>0001193125-15-051223.hdr.sgml : 20150219
<ACCEPTANCE-DATETIME>20150217215538
ACCESSION NUMBER:		0001193125-15-051223
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		16
FILED AS OF DATE:		20150218
DATE AS OF CHANGE:		20150217

FILER:

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

	FILING VALUES:
		FORM TYPE:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-198850
		FILM NUMBER:		15626059

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1/A
<SEQUENCE>1
<FILENAME>d693329ds1a.htm
<DESCRIPTION>AMENDMENT NO. 3 TO FORM S-1
<TEXT>
Document 1 - file: d693329ds1a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.6
<SEQUENCE>2
<FILENAME>d693329dex106.htm
<DESCRIPTION>EX-10.6
<TEXT>
Document 2 - file: d693329dex106.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.33
<SEQUENCE>3
<FILENAME>d693329dex1033.htm
<DESCRIPTION>EX-10.33
<TEXT>
Document 3 - file: d693329dex1033.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>d693329dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: d693329dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g693329g07q40.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g693329g07q40.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g693329g12o97.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g693329g12o97.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g693329g15a16.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g693329g15a16.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g693329g17c99.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g693329g17c99.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g693329g18k90.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g693329g18k90.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g693329g21a42.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g693329g21a42.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g693329g31f69.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g693329g31f69.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g693329g37c05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g693329g37c05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g693329g67l84.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g693329g67l84.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g693329g72g81.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g693329g72g81.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g693329g79b67.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g693329g79b67.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>g693329g92b06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: g693329g92b06.jpg

</DOCUMENT>
</SEC-DOCUMENT>