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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">_______________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">_______________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Current Report Pursuant to</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Section 13 or 15(d) of the </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Securities Exchange Act of 1934 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of Report (Date of earliest event
reported) April 30, 2012 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">_______________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>HOLOGIC, INC. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact Name of Registrant as Specified
in its Charter) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">_______________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>DELAWARE </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(State or Other Jurisdiction of Incorporation)
</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; width: 49%">0-18281</TD>
    <TD STYLE="vertical-align: bottom; width: 2%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; width: 49%">04-2902449</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(Commission File Number)</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(I.R.S. Employer Identification No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; width: 49%">35 Crosby Drive, Bedford, MA</TD>
    <TD STYLE="vertical-align: bottom; width: 2%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center; width: 49%">01730</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(Address of Principal Executive Offices)</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-weight: bold; text-align: center">(Zip Code)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(781) 999-7300 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Registrant&rsquo;s Telephone Number,
Including Area Code) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Former Name or Former Address, if Changed
Since Last Report) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (<I>see</I> General Instruction
A.2. below):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD>Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: -0.25in">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD>Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: -0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD>Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-indent: -0.25in">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Wingdings">&uml;</FONT></TD><TD>Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</TD></TR></TABLE>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 7.01 Regulation FD Disclosure.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt">On April 30, 2012, Hologic,
Inc., a Delaware corporation (&ldquo;Hologic&rdquo;), issued a joint press release with Gen-Probe Incorporated, a Delaware corporation
(&ldquo;Gen-Probe&rdquo;), announcing that Hologic, Gold Acquisition Corp., a newly-formed Delaware corporation wholly-owned by
Hologic (&ldquo;Merger Sub&rdquo;), and Gen-Probe had entered into an Agreement and Plan of Merger (the &ldquo;Merger Agreement&rdquo;).
Pursuant to the Merger Agreement, Merger Sub will merge with and into Gen-Probe (the &ldquo;Merger&rdquo;) with Gen-Probe surviving
the Merger as a wholly-owned direct subsidiary of Hologic. The transaction has been unanimously approved by the boards of directors
of both Hologic and Gen-Probe. A copy of the joint press release is attached hereto as Exhibit 99.1 and is incorporated herein
in its entirety by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt"><B><I>Limitation
on Incorporation by Reference.</I></B>&nbsp;The information furnished in this Item 7.01, including the joint press release
attached hereto as Exhibit 99.1, shall not be deemed &ldquo;filed&rdquo; for purposes of Section&nbsp;18 of the Securities
Exchange Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;), or otherwise subject to the liabilities of that section,
nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or
the Exchange Act, except as expressly set forth by specific reference in such a filing.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt"><B><I>Cautionary
Note Regarding Forward-Looking Statements. </I></B>Except for historical information contained in the joint press
release attached as an exhibit hereto, the joint press release contains forward-looking statements that
involve certain risks and uncertainties that could cause actual results to differ materially from those expressed or implied
by these statements. Please refer to the cautionary notes in the joint press release regarding
these forward-looking statements.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 27pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item&nbsp;9.01 Financial Statements and Exhibits.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(d) Exhibits.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: black 1pt solid; font-weight: bold; width: 6%">Exhibit<BR> Number</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; font-weight: bold; width: 89%">Description</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; text-align: left; padding-left: 0.12in">99.1</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Joint press release dated April 30, 2012 of Hologic, Inc. and Gen-Probe Incorporated.</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; text-align: left; padding-left: 0.12in">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>SIGNATURES </U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt">Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR>
    <TD STYLE="width: 48%">&nbsp;</TD>
    <TD STYLE="width: 1%; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="width: 48%">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt">Date: April 30, 2012</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="vertical-align: bottom; padding-left: 12pt; text-indent: -12pt">HOLOGIC, INC.</TD></TR>
<TR>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt">By:</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">/S/ GLENN P. MUIR</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-left: 12pt; text-indent: -12pt">Glenn P. Muir</TD></TR>
<TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">Executive Vice President, Finance and Administration, and Chief Financial Officer</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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[{"type": "8-K", "sequence": "1", "filename": "v311161_8-k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 15966}]
{"company-data": {"conformed-name": "HOLOGIC INC", "cik": "0000859737", "assigned-sic": "3844", "irs-number": "042902449", "state-of-incorporation": "DE", "fiscal-year-end": "0924"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-18281", "film-number": "12792071"}, "business-address": {"street1": "35 CROSBY DRIVE", "city": "BEDFORD", "state": "MA", "zip": "01730", "phone": "7819997300"}, "mail-address": {"street1": "35 CROSBY DRIVE", "city": "BEDFORD", "state": "MA", "zip": "01730"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
_______________
FORM 8-K
_______________
Current Report Pursuant to
Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event
reported) April 30, 2012
_______________
HOLOGIC, INC.
(Exact Name of Registrant as Specified
in its Charter)
_______________
DELAWARE
(State or Other Jurisdiction of Incorporation)
0-18281
04-2902449
(Commission File Number)
(I.R.S. Employer Identification No.)
35 Crosby Drive, Bedford, MA
01730
(Address of Principal Executive Offices)
(Zip Code)
(781) 999-7300
(Registrant's Telephone Number,
Including Area Code)
(Former Name or Former Address, if Changed
Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (
see
General Instruction
A.2. below):
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 7.01 Regulation FD Disclosure.
On April 30, 2012, Hologic,
Inc., a Delaware corporation ("Hologic"), issued a joint press release with Gen-Probe Incorporated, a Delaware corporation
("Gen-Probe"), announcing that Hologic, Gold Acquisition Corp., a newly-formed Delaware corporation wholly-owned by
Hologic ("Merger Sub"), and Gen-Probe had entered into an Agreement and Plan of Merger (the "Merger Agreement").
Pursuant to the Merger Agreement, Merger Sub will merge with and into Gen-Probe (the "Merger") with Gen-Probe surviving
the Merger as a wholly-owned direct subsidiary of Hologic. The transaction has been unanimously approved by the boards of directors
of both Hologic and Gen-Probe. A copy of the joint press release is attached hereto as Exhibit 99.1 and is incorporated herein
in its entirety by reference.
Limitation
on Incorporation by Reference.
The information furnished in this Item 7.01, including the joint press release
attached hereto as Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section,
nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or
the Exchange Act, except as expressly set forth by specific reference in such a filing.
Cautionary
Note Regarding Forward-Looking Statements.
Except for historical information contained in the joint press
release attached as an exhibit hereto, the joint press release contains forward-looking statements that
involve certain risks and uncertainties that could cause actual results to differ materially from those expressed or implied
by these statements. Please refer to the cautionary notes in the joint press release regarding
these forward-looking statements.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit
Number
Description
99.1
Joint press release dated April 30, 2012 of Hologic, Inc. and Gen-Probe Incorporated.
SIGNATURES
Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: April 30, 2012
HOLOGIC, INC.
By:
/S/ GLENN P. MUIR
Glenn P. Muir
Executive Vice President, Finance and Administration, and Chief Financial Officer