    <SEC-DOCUMENT>0001140361-22-002197-index.html : 20220120
    <SEC-HEADER>0001140361-22-002197.hdr.sgml : 20220120
    <ACCEPTANCE-DATETIME>20220120161707
    ACCESSION NUMBER:		0001140361-22-002197
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20220120
    DATE AS OF CHANGE:		20220120

    FILER:

    	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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-36214
    		FILM NUMBER:		22542487

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ny20000002x2_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: ny20000002x2_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20000002x2_nac01.jpg
    <TEXT>
    Document 2 - file: ny20000002x2_nac01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ny20000002x2_nac02.jpg
    <TEXT>
    Document 3 - file: ny20000002x2_nac02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>ny20000002x2_rclogo.jpg
    <TEXT>
    Document 4 - file: ny20000002x2_rclogo.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>