<SEC-DOCUMENT>0001357550-20-000066-index.html : 20201009
<SEC-HEADER>0001357550-20-000066.hdr.sgml : 20201009
<ACCEPTANCE-DATETIME>20201009115506
ACCESSION NUMBER:		0001357550-20-000066
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20201009
DATE AS OF CHANGE:		20201009

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:		201232574

	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:			Weiss Asset Management LP
		CENTRAL INDEX KEY:			0001357550
		IRS NUMBER:				611451623
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		222 BERKELEY STREET, 16TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-7780

	MAIL ADDRESS:	
		STREET 1:		222 BERKELEY STREET, 16TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WEISS CAPITAL LLC
		DATE OF NAME CHANGE:	20060327
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>pfnx13ga9oct2020.htm
<TEXT>
Document 1 - file: pfnx13ga9oct2020.htm

</DOCUMENT>
</SEC-DOCUMENT>