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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>FORM 8-K</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt">&nbsp;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section&nbsp;13 or 15(d)
of the<BR>
Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&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): September 17, 2012</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>THE KEYW
HOLDING CORPORATION</B></FONT></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><B>Maryland<BR>
</B>(State or Other <BR>
Jurisdiction of <BR>
Incorporation) </TD>
    <TD>&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>001-34891</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Commission<BR>
        File Number)</P></TD>
    <TD>&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>27-1594952</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(IRS Employer<BR>
        Identification No.)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 100%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>7740 Milestone Parkway, Suite 400</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Hanover, Maryland 21076</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of Principal Executive Offices)
        (Zip Code)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Registrant&rsquo;s telephone number, including
area code: <B>(443) 733-1600</B></P>

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

<P STYLE="font: 10pt Wingdings; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">o</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">o</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">o</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">o</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></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 0pt 0.75in; text-indent: -0.75in"><B>Item 8.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other Events.</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">The KEYW Holding Corporation (the &ldquo;<U>Company</U>&rdquo;)
today filed a Prospectus Supplement to the Prospectus included in its Registration Statement on Form S-3 (333-182134). The Prospectus
Supplement includes certain audited financial statements of each of Poole &amp; Associates, Inc. and Sensage, Inc. Attached
to this Form 8-K as Exhibits 99.1, 99.2 and 99.3, respectively, are (i) the financial statements of Poole &amp; Associates, Inc.
(ii) the financial statements of Sensage, Inc. and (iii) the pro forma financial information that were included in the Prospectus
Supplement.</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 0pt 0.75in; text-indent: -0.75in"><B>Item&nbsp;9.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial
Statements and Exhibits.</B></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 4%; font-size: 10pt">&nbsp;(d)</TD>
    <TD STYLE="font-size: 10pt">Exhibits</TD></TR>
</TABLE>
<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%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD NOWRAP STYLE="width: 14%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: black 0.75pt solid"><B>Exhibit&nbsp;No.</B></P></TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 79%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: black 0.75pt solid"><B>Description</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>23.1</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of <FONT STYLE="font-family: Times New Roman, Times, Serif">Grant Thornton LLP</FONT>.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>23.2</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of <FONT STYLE="font-family: Times New Roman, Times, Serif">WuHoover &amp; Co. LLP</FONT>.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>Financial Statements of Poole &amp; Associates, Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.2</TD>
    <TD>&nbsp;</TD>
    <TD>Financial Statements of Sensage, Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.3</TD>
    <TD>&nbsp;</TD>
    <TD>Pro Forma Financial Information.</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: center; text-indent: -0.5in"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: center; text-indent: -0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: center; text-indent: -0.5in"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: center; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">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%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>Date: September 17, 2012</TD>
    <TD COLSPAN="2">THE KEYW HOLDING CORPORATION</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 45%">&nbsp;</TD>
    <TD STYLE="width: 4%">By:</TD>
    <TD STYLE="width: 51%; border-bottom: Black 1pt solid">&nbsp;/s/ John E. Krobath</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name: John E. Krobath</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title: Chief Financial Officer</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 2.5in; text-indent: 0.5in">&nbsp;</P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD NOWRAP STYLE="width: 14%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; border-bottom: black 0.75pt solid"><B>Exhibit&nbsp;No.</B></P></TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 79%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; border-bottom: black 0.75pt solid"><B>Description</B></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>23.1</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of <FONT STYLE="font-family: Times New Roman, Times, Serif">Grant Thornton LLP</FONT>.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>23.2</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of <FONT STYLE="font-family: Times New Roman, Times, Serif">WuHoover &amp; Co. LLP</FONT>.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>Financial Statements of Poole &amp; Associates, Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.2</TD>
    <TD>&nbsp;</TD>
    <TD>Financial Statements of Sensage, Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD NOWRAP>99.3</TD>
    <TD>&nbsp;</TD>
    <TD>Pro Forma Financial Information.</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 24.5pt"><B>&nbsp;</B></P>

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 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): September 17, 2012
THE KEYW
HOLDING CORPORATION
(Exact Name of Registrant as Specified in
Charter)
Maryland
(State or Other
Jurisdiction of
Incorporation)
001-34891
(Commission
File Number)
27-1594952
(IRS Employer
Identification No.)
7740 Milestone Parkway, Suite 400
Hanover, Maryland 21076
(Address of Principal Executive Offices)
        (Zip Code)
Registrant's telephone number, including
area code:
(443) 733-1600
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:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 8.01            Other Events.
The KEYW Holding Corporation (the "
Company
")
today filed a Prospectus Supplement to the Prospectus included in its Registration Statement on Form S-3 (333-182134). The Prospectus
Supplement includes certain audited financial statements of each of Poole & Associates, Inc. and Sensage, Inc. Attached
to this Form 8-K as Exhibits 99.1, 99.2 and 99.3, respectively, are (i) the financial statements of Poole & Associates, Inc.
(ii) the financial statements of Sensage, Inc. and (iii) the pro forma financial information that were included in the Prospectus
Supplement.
Item 9.01            Financial
Statements and Exhibits.
(d)
Exhibits
Exhibit No.
Description
23.1
Consent of
Grant Thornton LLP
.
23.2
Consent of
WuHoover & Co. LLP
.
99.1
Financial Statements of Poole & Associates, Inc.
99.2
Financial Statements of Sensage, Inc.
99.3
Pro Forma Financial Information.
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: September 17, 2012
THE KEYW HOLDING CORPORATION
By:
/s/ John E. Krobath
Name: John E. Krobath
Title: Chief Financial Officer
EXHIBIT INDEX
Exhibit No.
Description
23.1
Consent of
Grant Thornton LLP
.
23.2
Consent of
WuHoover & Co. LLP
.
99.1
Financial Statements of Poole & Associates, Inc.
99.2
Financial Statements of Sensage, Inc.
99.3
Pro Forma Financial Information.