<SEC-DOCUMENT>0001104659-20-020065-index.html : 20200213
<SEC-HEADER>0001104659-20-020065.hdr.sgml : 20200213
<ACCEPTANCE-DATETIME>20200213145050
ACCESSION NUMBER:		0001104659-20-020065
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200213
DATE AS OF CHANGE:		20200213

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pfenex Inc.
		CENTRAL INDEX KEY:			0001478121
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				271356759
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88253
		FILM NUMBER:		20609397

	BUSINESS ADDRESS:	
		STREET 1:		10790 ROSELLE STREET
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-352-4400

	MAIL ADDRESS:	
		STREET 1:		10790 ROSELLE STREET
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLAIR WILLIAM & CO/IL
		CENTRAL INDEX KEY:			0000902367
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				362214610
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606-5312
		BUSINESS PHONE:		3122361600

	MAIL ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm207653-2_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tm207653-2_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>