<SEC-DOCUMENT>0001104659-14-070091-index.html : 20141003
<SEC-HEADER>0001104659-14-070091.hdr.sgml : 20141003
<ACCEPTANCE-DATETIME>20141003172548
ACCESSION NUMBER:		0001104659-14-070091
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20141003
DATE AS OF CHANGE:		20141003
GROUP MEMBERS:		DAVID H. BATCHELDER
GROUP MEMBERS:		RALPH V. WHITWORTH
GROUP MEMBERS:		RELATIONAL COAST PARTNERS, L.P.
GROUP MEMBERS:		RELATIONAL FUND PARTNERS, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS IX, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS MID-CAP FUND I, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS MID-CAP FUND II, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS XV, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS XVI, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS XX, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS XXIII, L.P.
GROUP MEMBERS:		RELATIONAL INVESTORS XXIV, L.P.
GROUP MEMBERS:		RH FUND 1, L.P.

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:			0928

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-41074
		FILM NUMBER:		141141020

	BUSINESS ADDRESS:	
		STREET 1:		35 CROSBY DRIVE
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730
		BUSINESS PHONE:		7819997300

	MAIL ADDRESS:	
		STREET 1:		35 CROSBY DRIVE
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RELATIONAL INVESTORS LLC
		CENTRAL INDEX KEY:			0001047644
		IRS NUMBER:				330694767
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		12400 HIGH BLUFF DRIVE
		STREET 2:		SUITE 600
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
		BUSINESS PHONE:		858.704.3333

	MAIL ADDRESS:	
		STREET 1:		12400 HIGH BLUFF DRIVE
		STREET 2:		SUITE 600
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>a14-21901_1sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: a14-21901_1sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.A
<SEQUENCE>2
<FILENAME>a14-21901_1ex99da.htm
<DESCRIPTION>EXHIBIT A
<TEXT>
Document 2 - file: a14-21901_1ex99da.htm

</DOCUMENT>
</SEC-DOCUMENT>