<SEC-DOCUMENT>9999999997-19-007750-index.html : 20200325
<SEC-HEADER>9999999997-19-007750.hdr.sgml : 20200325
<ACCEPTANCE-DATETIME>20191203112414
ACCESSION NUMBER:		9999999997-19-007750
CONFORMED SUBMISSION TYPE:	SEC STAFF LETTER
CATEGORY:             	REDACTED EXHIBIT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20191202
ACTION DATE:               	20191202
RECEIVED DATE:           	20191203

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ultragenyx Pharmaceutical Inc.
		CENTRAL INDEX KEY:			0001515673
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				272546083
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SEC STAFF LETTER

	BUSINESS ADDRESS:	
		STREET 1:		60 LEVERONI COURT
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949
		BUSINESS PHONE:		415-483-8800

	MAIL ADDRESS:	
		STREET 1:		60 LEVERONI COURT
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949
</SEC-HEADER>
<DOCUMENT>
<TYPE>REDACTED EXHIBIT
<SEQUENCE>1
<FILENAME>filename1.pdf
<TEXT>
Document 1 - file: filename1.pdf

</DOCUMENT>
</SEC-DOCUMENT>