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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 18pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
</B></FONT><FONT STYLE="font-size: 10pt">WASHINGTON, D.C. 20549</FONT></P>

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

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>FORM 8-K</B></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED):
March 2, 2012</B></P>

<P STYLE="font: 10pt Symbol; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>DEALERTRACK HOLDINGS, INC.<BR>
</U></B>(Exact name of registrant as specified in its charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 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 STYLE="width: 33%; text-decoration: none; text-align: center; border-bottom: Black 1pt solid">Delaware</TD>
    <TD STYLE="width: 1%; text-align: center; text-decoration: none">&nbsp;</TD>
    <TD STYLE="width: 32%; text-decoration: none; text-align: center; border-bottom: Black 1pt solid">000-51653</TD>
    <TD STYLE="width: 1%; text-align: center; text-decoration: none">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-decoration: none; text-align: center; width: 33%">52-2336218</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">(State or other jurisdiction</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(Commission</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(I.R.S. Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">of incorporation)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">File Number)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">Identification No.)</TD></TR>
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    <TD STYLE="border-bottom: Black 1pt solid; text-decoration: none; text-align: center; width: 75%">1111 Marcus Ave., Suite M04, Lake Success, NY</TD>
    <TD STYLE="width: 1%; text-align: center; text-decoration: none">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-decoration: none; text-align: center; width: 24%">11042</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">(Address of principal executive offices)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(Zip Code)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">Registrant's telephone number, including area
code: 516-734-3600</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><U>Not Applicable<BR>
</U>Former name or former address, if changed since last report</P>

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

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

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

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

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

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

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

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

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B><U>TABLE OF CONTENTS</U></B></P>

<P STYLE="font: 10pt/0.05pt Times New Roman, Times, Serif; margin: 11.25pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt"><U>Item 8.01. Other Events</U></P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt"><U>Item 9.01. Financial Statements and Exhibits.</U></P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt">&nbsp;</P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt">&nbsp;</P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt/11.25pt Times New Roman, Times, Serif; margin: 0 0 0 45pt; text-indent: -45pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 11.25pt 0 0 1in; text-indent: -1in"><B>Item 8.01&#9;Other Events.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 11.25pt 0 0"><I><U>Press Release</U></I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 11.25pt 0 0; text-indent: 0.5in">On March 2, 2012, the Company issued
a press release announcing that the initial purchasers of $175 million principal amount of the Company&rsquo;s 1.50% Senior Convertible
Notes due 2017 (the &ldquo;Notes&rdquo;) had elected to exercise, in full, their option to purchase an additional $25 million principal
amount of the Notes. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 11.25pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-indent: -1in"><I><U>Composite Version of Credit Agreement</U></I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-indent: -1in"><I>&nbsp;</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">As described in the Form 8-K filed by the Company
on February 29, 2012, the Company entered into the<U> </U>First Amendment, dated as of February 27, 2012 (the &ldquo;First Amendment&rdquo;),
and the Second Amendment, dated as of February 29, 2012 (the &ldquo;Second Amendment&rdquo;), to the Credit Agreement, dated April
20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto
from time to time, and JPMorgan Chase Bank, N.A., as administrative agent (the &ldquo;Credit Agreement&rdquo;). Attached as Exhibit
10.1 hereto is a composite version of the Credit Agreement, reflecting the changes of the First Amendment and the Second Amendment.
The description of the First Amendment and the Second Amendment is incorporated by reference to the Company&rsquo;s Form 8-K filed
by the Company on February 29, 2012.</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-indent: -1in"><B>Item 9.01 &#9;Financial Statements
and Exhibits.</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt">&nbsp;</P>

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    <TD STYLE="width: 6%; vertical-align: top; border-bottom: windowtext 1pt solid; font-weight: bold">Exhibit No.</TD>
    <TD STYLE="width: 1%; vertical-align: bottom; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 93%; vertical-align: bottom; border-bottom: windowtext 1pt solid; font-weight: bold; text-align: center">Description</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt; text-align: center">10.1</TD>
    <TD STYLE="vertical-align: bottom; padding-bottom: 6pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt">Composite Version of Credit Agreement, reflecting the First Amendment, dated as of February 27, 2012, and the Second Amendment, dated as of February 29, 2012, to Credit Agreement, dated April 20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent.</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt; text-align: center">99.1</TD>
    <TD STYLE="vertical-align: bottom; padding-bottom: 6pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt">Press Release dated March 2, 2012.</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">Date: <FONT STYLE="color: black">March 2, 2012&nbsp;</FONT></P>

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

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

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    <TD STYLE="width: 100%; padding-right: 2.8pt; font-size: 10pt">DealerTrack Holdings, Inc.</TD></TR>
<TR>
    <TD STYLE="padding-right: 2.8pt; font-size: 10pt">&nbsp;</TD></TR>
<TR>
    <TD STYLE="padding-right: 2.8pt; font-size: 10pt; border-bottom: Black 1pt solid">By: &nbsp;/s/ Eric D. Jacobs</TD></TR>
<TR>
    <TD STYLE="padding-right: 2.8pt; font-size: 10pt">Eric D. Jacobs&nbsp;</TD></TR>
<TR>
    <TD STYLE="padding-right: 2.8pt; font-size: 10pt">Senior Vice President, Chief Financial and Administrative Officer</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 6%; vertical-align: top; border-bottom: windowtext 1pt solid; font-weight: bold">Exhibit No.</TD>
    <TD STYLE="width: 1%; vertical-align: bottom; font-weight: bold; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 93%; vertical-align: bottom; border-bottom: windowtext 1pt solid; font-weight: bold; text-align: center">Description</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt; text-align: center">10.1</TD>
    <TD STYLE="vertical-align: bottom; padding-bottom: 6pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt">Composite Version of Credit Agreement, reflecting the First Amendment, dated as of February 27, 2012, and the Second Amendment, dated as of February 29, 2012, to Credit Agreement, dated April 20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent.</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt; text-align: center">99.1</TD>
    <TD STYLE="vertical-align: bottom; padding-bottom: 6pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-bottom: 6pt">Press Release dated March 2, 2012.</TD></TR>
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{"company-data": {"conformed-name": "DealerTrack Holdings, Inc.", "cik": "0001333513", "assigned-sic": "7373", "irs-number": "522336218", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-51653", "film-number": "12663997"}, "business-address": {"street1": "1111 MARCUS AVENUE", "street2": "SUITE M04", "city": "LAKE SUCCESS", "state": "NY", "zip": "11042", "phone": "(516) 734-3600"}, "mail-address": {"street1": "1111 MARCUS AVENUE", "street2": "SUITE M04", "city": "LAKE SUCCESS", "state": "NY", "zip": "11042"}}
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):
March 2, 2012
DEALERTRACK HOLDINGS, INC.
(Exact name of registrant as specified in its charter)
Delaware
000-51653
52-2336218
(State or other jurisdiction
(Commission
(I.R.S. Employer
of incorporation)
File Number)
Identification No.)
1111 Marcus Ave., Suite M04, Lake Success, NY
11042
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area
code: 516-734-3600
Not Applicable
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:
¨
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))
TABLE OF CONTENTS
Item 8.01. Other Events
Item 9.01. Financial Statements and Exhibits.
EXHIBIT INDEX
Item 8.01	Other Events.
Press Release
On March 2, 2012, the Company issued
a press release announcing that the initial purchasers of $175 million principal amount of the Company's 1.50% Senior Convertible
Notes due 2017 (the "Notes") had elected to exercise, in full, their option to purchase an additional $25 million principal
amount of the Notes. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.
Composite Version of Credit Agreement
As described in the Form 8-K filed by the Company
on February 29, 2012, the Company entered into the
First Amendment, dated as of February 27, 2012 (the "First Amendment"),
and the Second Amendment, dated as of February 29, 2012 (the "Second Amendment"), to the Credit Agreement, dated April
20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto
from time to time, and JPMorgan Chase Bank, N.A., as administrative agent (the "Credit Agreement"). Attached as Exhibit
10.1 hereto is a composite version of the Credit Agreement, reflecting the changes of the First Amendment and the Second Amendment.
The description of the First Amendment and the Second Amendment is incorporated by reference to the Company's Form 8-K filed
by the Company on February 29, 2012.
Item 9.01 	Financial Statements
and Exhibits.
(d)  Exhibits.
Exhibit No.
Description
10.1
Composite Version of Credit Agreement, reflecting the First Amendment, dated as of February 27, 2012, and the Second Amendment, dated as of February 29, 2012, to Credit Agreement, dated April 20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent.
99.1
Press Release dated March 2, 2012.
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:
March 2, 2012
DealerTrack Holdings, Inc.
By:  /s/ Eric D. Jacobs
Eric D. Jacobs
Senior Vice President, Chief Financial and Administrative Officer
EXHIBIT INDEX
Exhibit No.
Description
10.1
Composite Version of Credit Agreement, reflecting the First Amendment, dated as of February 27, 2012, and the Second Amendment, dated as of February 29, 2012, to Credit Agreement, dated April 20, 2011, by and among DealerTrack Holdings, Inc. and DealerTrack Canada, Inc., as borrowers, the several lenders party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent.
99.1
Press Release dated March 2, 2012.