<SEC-DOCUMENT>0001144204-19-006731-index.html : 20190213
<SEC-HEADER>0001144204-19-006731.hdr.sgml : 20190213
<ACCEPTANCE-DATETIME>20190212184444
ACCESSION NUMBER:		0001144204-19-006731
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190213
DATE AS OF CHANGE:		20190212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HOLOGIC INC
		CENTRAL INDEX KEY:			0000859737
		STANDARD INDUSTRIAL CLASSIFICATION:	X-RAY APPARATUS & TUBES & RELATED IRRADIATION APPARATUS [3844]
		IRS NUMBER:				042902449
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-41074
		FILM NUMBER:		19592589

	BUSINESS ADDRESS:	
		STREET 1:		250 CAMPUS DRIVE
		CITY:			MARLBOROUGH
		STATE:			MA
		ZIP:			01752
		BUSINESS PHONE:		5082632900

	MAIL ADDRESS:	
		STREET 1:		250 CAMPUS DRIVE
		CITY:			MARLBOROUGH
		STATE:			MA
		ZIP:			01752

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PARNASSUS INVESTMENTS /CA
		CENTRAL INDEX KEY:			0000948669
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			CA

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		1 MARKET STREET #1600
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105
		BUSINESS PHONE:		4157780200

	MAIL ADDRESS:	
		STREET 1:		1 MARKET STREET #1600
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>tv513297_sc13g.txt
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: tv513297_sc13g.txt

</DOCUMENT>
</SEC-DOCUMENT>