<SEC-DOCUMENT>0000950170-23-025097-index.html : 20230531
<SEC-HEADER>0000950170-23-025097.hdr.sgml : 20230531
<ACCEPTANCE-DATETIME>20230531090018
ACCESSION NUMBER:		0000950170-23-025097
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20230531
DATE AS OF CHANGE:		20230531

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIBROGEN INC
		CENTRAL INDEX KEY:			0000921299
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36740
		FILM NUMBER:		23979113

	BUSINESS ADDRESS:	
		STREET 1:		409 ILLINOIS STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94158
		BUSINESS PHONE:		415-978-1200

	MAIL ADDRESS:	
		STREET 1:		409 ILLINOIS STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94158
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>fgen-defa14a-2023-supple.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: fgen-defa14a-2023-supple.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img92467995_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img92467995_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>img92467995_1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: img92467995_1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>img92467995_2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: img92467995_2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>img92467995_3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: img92467995_3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>img92467995_4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: img92467995_4.jpg

</DOCUMENT>
</SEC-DOCUMENT>