<SEC-DOCUMENT>0000895345-17-000063-index.html : 20170213
<SEC-HEADER>0000895345-17-000063.hdr.sgml : 20170213
<ACCEPTANCE-DATETIME>20170213161548
ACCESSION NUMBER:		0000895345-17-000063
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20170213
DATE AS OF CHANGE:		20170213
GROUP MEMBERS:		PERRIGO CORP LTD.
GROUP MEMBERS:		PERRIGO HOLDINGS LTD.
GROUP MEMBERS:		PERRIGO PHARMA INTERNATIONAL DAC
GROUP MEMBERS:		PERRIGO SCIENCE ONE LTD.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROTEOSTASIS THERAPEUTICS, INC.
		CENTRAL INDEX KEY:			0001445283
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-89403
		FILM NUMBER:		17599313

	BUSINESS ADDRESS:	
		STREET 1:		200 TECHNOLOGY SQUARE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		617-225-0096

	MAIL ADDRESS:	
		STREET 1:		200 TECHNOLOGY SQUARE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PROTEOSTASIS THERAPEUTICS INC
		DATE OF NAME CHANGE:	20080916

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERRIGO Co plc
		CENTRAL INDEX KEY:			0001585364
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			0627

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		TREASURY BUILDING
		STREET 2:		LOWER GRAND CANAL STREET
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			L2 2
		BUSINESS PHONE:		269-673-8451

	MAIL ADDRESS:	
		STREET 1:		515 EASTERN AVENUE
		CITY:			ALLEGAN
		STATE:			MI
		ZIP:			49010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PERRIGO Co Ltd
		DATE OF NAME CHANGE:	20130828
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>mh13g-proteostasis_perrigo.htm
<TEXT>
Document 1 - file: mh13g-proteostasis_perrigo.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>mh13g-exh99_1.htm
<TEXT>
Document 2 - file: mh13g-exh99_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>mh13g-exh99_2.htm
<TEXT>
Document 3 - file: mh13g-exh99_2.htm

</DOCUMENT>
</SEC-DOCUMENT>