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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">As filed with the Securities and Exchange Commission on August&nbsp;30, 2007
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registration No.&nbsp;333-<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
</DIV>

<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 6pt; margin-left: 0%"><B><B><I>Registration
Statement <br>Under <br>The Securities Act of 1933</I></B>
</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>CENTRUE FINANCIAL CORPORATION</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
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    <TD width="47%">&nbsp;</TD>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B><BR>
(State or other jurisdiction of <BR>
incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>36-3145350</B><BR>
(I.R.S. employer<BR>
identification no.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">122 West Madison Street<BR>
Ottawa, Illinois 61350<BR>
(Address of principal executive offices, including zip code)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>CENTRUE FINANCIAL CORPORATION<BR>
(Formerly known as UnionBancorp, Inc.)<BR>
AMENDED AND RESTATED 2003 STOCK OPTION PLAN</B><BR>
(Full title of the plan)</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="58%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="38%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>With a copy to:</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>Kurt R. Stevenson</B>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>Timothy E. Kraepel</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>Senior Executive Vice President and
Chief Financial Officer</B>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>Howard &#038; Howard Attorneys, P.C.</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>Centrue Financial Corporation</B>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>The Pinehurst Office Center, Suite&nbsp;101</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>122 West Madison Street</B>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>39400 North Woodward Avenue</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>Ottawa, Illinois 61350</B>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>Bloomfield Hills, Michigan 48304-5151</B></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Name and address of agent for service)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>(248)&nbsp;645-1483</B></TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><B>(815)&nbsp;431-2720</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Telephone number, including area code,
of agent for service)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">CALCULATION OF REGISTRATION FEE</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom" STYLE="FONT-SIZE: 0PT">
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    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">to be</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">offering price</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">aggregate</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">registered</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">per share</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">offering price</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount of</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">Title of Securities to be Registered</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">(1)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">(2)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">(2)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Registration fee</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>

<TD style="border-top: 2px solid #000000" align="center"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $1.00 par value</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">370,000</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">19.605</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">7,253,850</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">222.70</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(1)&nbsp;Plus, pursuant to Rule&nbsp;416, an indeterminate number of additional shares as may be issuable in
the event of an adjustment as a result of an increase in the number of issued shares of
Registrant&#146;s Common Stock resulting from a subdivision of such shares, the payment of stock
dividends or certain other capital adjustments as provided in the above-referenced Amended and
Restated 2003 Stock Option Plan.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(2)&nbsp;Estimated solely for purposes of calculating the registration fee in accordance with Rule
457(c) and (h)&nbsp;based on the $19.605 average of the high and low prices of Registrant&#146;s Common Stock
on The Nasdaq Global Market on August&nbsp;24, 2007.
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;1. Plan Information*</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;2. Registrant Information and Employee Plan Annual Information*</A></TD></TR>
<TR><TD colspan="9"><A HREF="#003">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#009">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#010">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#011">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#012">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="k18221exv5w1.htm">Opinion of Howard & Howard Attorneys, P.C.</A></TD></TR>
<TR><TD colspan="9"><A HREF="k18221exv23w1.htm">Consent of Crowe  Chizek and Company  LLC</A></TD></TR>
<TR><TD colspan="9"><A HREF="k18221exv24.htm">Power of Attorney</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>





<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><U>Introductory Statement</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Centrue Financial Corporation, formerly known as UnionBancorp, Inc. (the &#147;Registrant&#148;) is
filing this Registration Statement on Form S-8 with respect to up to 370,000 shares of Registrant&#146;s
common stock, $1.00 par value per share (&#147;Common Stock&#148;) issuable under the Amended and Restated
2003 Stock Option Plan. 200,000 shares of Common Stock were previously registered when
Registrant&#146;s Form S-8 (Registration No.&nbsp;333-119394) was filed on September&nbsp;30, 2004. The purpose
of this Form S-8 is to register an additional 370,000 shares of Common Stock which have been
reserved for issuance pursuant to approvals received at Registrant&#146;s 2007 Annual Meeting of
Stockholders held on April&nbsp;24, 2007.
</DIV>
<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I.</B>
</DIV>

<!-- link2 "Item&nbsp;1. Plan Information*" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;1. Plan Information*</B>
</DIV>

<!-- link2 "Item&nbsp;2. Registrant Information and Employee Plan Annual Information*" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;2. Registrant Information and Employee Plan Annual Information*</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">* Information required by Part&nbsp;I to be contained in this Section 10(a) prospectus is omitted from
the Registration Statement in accordance with Rule&nbsp;428 under the Securities Act of 1933, as amended
(&#147;Securities Act&#148;), and the Note to Part&nbsp;I on Form S-8.
</DIV>

<!-- link1 "PART II" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II.</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>

</DIV>
<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed with the Securities and Exchange Commission (the &#147;Commission&#148;)
by the Registrant (File No.&nbsp;0-28846) are incorporated in this Registration Statement by reference:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;the Registrant&#146;s Annual Report on Form 10-K for the year ended December&nbsp;31, 2006;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;the Registrant&#146;s Quarterly Report on Form 10-Q for the quarter ended March&nbsp;31, 2007;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;the Registrant&#146;s Quarterly Report on Form 10-Q for the quarter ended June&nbsp;30, 2007;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;Current Report on Form 8-K filed on April&nbsp;30, 2007;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;Current Report on Form 8-K filed on May&nbsp;4, 2007;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;Current Report on Form 8-K filed on July&nbsp;30, 2007;
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->2<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;all other reports filed by the Registrant pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (the &#147;Exchange Act&#148;) since December&nbsp;31, 2006;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;the information contained in the Registrant&#146;s definitive Proxy Statement filed with the
Commission on March&nbsp;23, 2007 relating to its 2007 Annual Meeting of Stockholders; and
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;the description of Registrant&#146;s Common Stock, $1.00 par value which appears under the
caption &#147;Effect of the Merger on Rights of Stockholders&#148; as set forth in Pre-Effective Amendment
No.&nbsp;1 to Registrant&#146;s Registration Statement on Form S-4 (Registration No.&nbsp;333-137013) filed with
the Commission on October&nbsp;3, 2006, including any amendments or reports filed for the purpose of
updating such description.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the
Exchange Act after the date of this Registration Statement and prior to the filing of a post
effective amendment which indicates that all securities offered have been sold or which deregisters
all securities then remaining unsold shall be deemed to be incorporated by reference in this
Registration Statement and to be a part hereof from the date of filing such documents.
</DIV>
<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the General Corporation Law of the State of Delaware (&#147;Section&nbsp;145&#148;), Article
VIII of the Registrant&#146;s Restated Certificate of Incorporation, as amended, and Article&nbsp;VII of the
Registrant&#146;s By-Laws provide for the indemnification of the Registrant&#146;s directors and officers in
a variety of circumstances, which may include indemnification for liabilities under the Securities
Act of 1933. The general effect of these provisions is to provide that the Registrant shall
indemnify its directors and officers against expenses (including attorneys&#146; fees), judgments, fines
and amounts paid in settlement actually and reasonably incurred by them in the proceeding in which
such persons are made a party by reason of being or having been a director or officer of
Registrant, but only if it is determined that they acted in good faith and in a manner they
reasonably believed to be in or not opposed to the best interest of the Registrant and, with
respect to any criminal action or proceeding, had no reasonable cause to believe their conduct was
unlawful. Such determination may be made by (i)&nbsp;a majority vote of a quorum consisting of
disinterested directors, (ii)&nbsp;an independent legal counsel in a written opinion (if no such quorum
is available or if a quorum of disinterested directors so directs), or (iii)&nbsp;the stockholders. The
Registrant will pay expenses incurred by its directors and officers prior to the final disposition
of such action, suit or proceeding, if the director or officer undertakes to repay such amount
unless it is ultimately determined that they are entitled to be indemnified by the Registrant.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->3<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant has insurance which, subject to certain policy limits, deductible amounts and
exclusions, insures directors and officers of the Registrant for liabilities incurred as a result
of acts committed in their capacity as directors and officers or claims made against them by reason
of their status as directors or officers.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As permitted pursuant to Section&nbsp;102(b)(7) of the General Corporation Law of the State of
Delaware, the Restated Certificate of Incorporation, as amended, of the Registrant eliminates the
personal monetary liability of a director of the Registrant or its stockholders for breach of
fiduciary duty as a director, except for liability that results from (i)&nbsp;any breach of the
director&#146;s duty of loyalty to the Registrant or its stockholders; (ii)&nbsp;acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of law, (iii)&nbsp;Section&nbsp;174
of the General Corporation Law of the State of Delaware (which Section pertains to a director&#146;s
liability for unlawful payments of dividends or unlawful stock purchases or redemptions); or (iv)
any transaction from which the director derived an improper personal benefit.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The exhibits filed herewith or incorporated by reference herein are set forth in the Exhibit
index filed as part of this Registration Statement on page 8 hereof.
</DIV>
<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned Registrant hereby undertakes:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of
1933;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set
forth in the Registration Statement;
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(iii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To include any material information with respect to the plan
of distribution not previously disclosed in the Registration Statement or any
material change to such information in the Registration Statement;</TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->4<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">PROVIDED, HOWEVER, that paragraphs (1)(i) and (1)(ii) do not apply if the Registration Statement is
on Form S-3, Form S-8, and the information required to be included in a post-effective amendment by
those paragraphs is contained in reports filed with or furnished to the Commission by the
Registrant pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the Registration Statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;That, for the purpose of determining any liability under the Securities Act of 1933, each
such post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial BONA FIDE offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the Registrant&#146;s annual report pursuant to Section
13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing
of an employee benefit plan&#146;s annual report pursuant to section 15(d) of the Securities Exchange
Act of 1934) that is incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial BONA FIDE offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Act and is, therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the Registrant of expenses incurred or paid by a
director, officer or controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person in connection with
the securities being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->5<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="011"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>The Registrant. </I>Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Ottawa, State of Illinois, on August&nbsp;30,
2007.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">CENTRUE FINANCIAL CORPORATION<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Registrant)<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/Thomas A. Daiber
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Thomas A. Daiber&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">President and Chief Executive
Officer<br>
(Principal Executive Officer)&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">                       /s/Kurt R. Stevenson
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Kurt R. Stevenson&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Senior Executive Vice President and

Chief Financial Officer


(Principal Financial Officer and
Principal Accounting Officer)&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities and on the dates indicated.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="45%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Date</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/Thomas A. Daiber
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Thomas A. Daiber
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">President and Chief
Executive Officer
<br>(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Dennis J. McDonnell
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman of the Board
and Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Richard J. Berry
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Walter E. Breipohl
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->6<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="45%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Date</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Randall E. Ganim
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Michael A. Griffith
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Michael J. Hejna
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
John A. Shinkle
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Mark L. Smith
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Scott C. Sullivan
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;30, 2007</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="60%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**By:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/Kurt R. Stevenson
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Kurt R. Stevenson
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Attorney-in-Fact</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->7<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "EXHIBIT INDEX " -->
<DIV align="left"><A NAME="012"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Howard &#038; Howard Attorneys, P.C.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Crowe Chizek and Company LLC</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Howard &#038; Howard Attorneys, P.C. (contained in their
opinion filed as Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
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    <TD align="left" valign="top">Power of Attorney</TD>
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{"company-data": {"conformed-name": "CENTRUE FINANCIAL CORP", "cik": "0001019650", "assigned-sic": "6021", "irs-number": "363145350", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-145790", "film-number": "071090132"}, "business-address": {"street1": "122 W MADISON STREET", "street2": "--", "city": "OTTAWA", "state": "IL", "zip": "61350", "phone": "815-431-2815"}, "mail-address": {"street1": "122 W MADISON STREET", "street2": "--", "city": "OTTAWA", "state": "IL", "zip": "61350"}, "former-company": {"former-conformed-name": "UNIONBANCORP INC", "date-changed": "19960724"}}
sv8
Table of Contents
As filed with the Securities and Exchange Commission on August 30, 2007
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
Registration
Statement
Under
The Securities Act of 1933
CENTRUE FINANCIAL CORPORATION
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of
incorporation or organization)
36-3145350
(I.R.S. employer
identification no.)
122 West Madison Street
Ottawa, Illinois 61350
(Address of principal executive offices, including zip code)
CENTRUE FINANCIAL CORPORATION
(Formerly known as UnionBancorp, Inc.)
AMENDED AND RESTATED 2003 STOCK OPTION PLAN
(Full title of the plan)
With a copy to:
Kurt R. Stevenson
Timothy E. Kraepel
Senior Executive Vice President and
Chief Financial Officer
Howard & Howard Attorneys, P.C.
Centrue Financial Corporation
The Pinehurst Office Center, Suite 101
122 West Madison Street
39400 North Woodward Avenue
Ottawa, Illinois 61350
Bloomfield Hills, Michigan 48304-5151
(Name and address of agent for service)
(248) 645-1483
(815) 431-2720
(Telephone number, including area code,
of agent for service)
CALCULATION OF REGISTRATION FEE
Proposed
Proposed
Amount
maximum
maximum
to be
offering price
aggregate
registered
per share
offering price
Amount of
Title of Securities to be Registered
(1)
(2)
(2)
Registration fee
Common Stock, $1.00 par value
370,000
$
19.605
$
7,253,850
$
222.70
(1) Plus, pursuant to Rule 416, an indeterminate number of additional shares as may be issuable in
the event of an adjustment as a result of an increase in the number of issued shares of
Registrant's Common Stock resulting from a subdivision of such shares, the payment of stock
dividends or certain other capital adjustments as provided in the above-referenced Amended and
Restated 2003 Stock Option Plan.
(2) Estimated solely for purposes of calculating the registration fee in accordance with Rule
457(c) and (h) based on the $19.605 average of the high and low prices of Registrant's Common Stock
on The Nasdaq Global Market on August 24, 2007.
TABLE OF CONTENTS
PART I
Item 1. Plan Information*
Item 2. Registrant Information and Employee Plan Annual Information*
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
Opinion of Howard & Howard Attorneys, P.C.
Consent of Crowe  Chizek and Company  LLC
Power of Attorney
Table of Contents
Introductory Statement
Centrue Financial Corporation, formerly known as UnionBancorp, Inc. (the "Registrant") is
filing this Registration Statement on Form S-8 with respect to up to 370,000 shares of Registrant's
common stock, $1.00 par value per share ("Common Stock") issuable under the Amended and Restated
2003 Stock Option Plan. 200,000 shares of Common Stock were previously registered when
Registrant's Form S-8 (Registration No. 333-119394) was filed on September 30, 2004. The purpose
of this Form S-8 is to register an additional 370,000 shares of Common Stock which have been
reserved for issuance pursuant to approvals received at Registrant's 2007 Annual Meeting of
Stockholders held on April 24, 2007.
PART I.
Item 1. Plan Information*
Item 2. Registrant Information and Employee Plan Annual Information*
* Information required by Part I to be contained in this Section 10(a) prospectus is omitted from
the Registration Statement in accordance with Rule 428 under the Securities Act of 1933, as amended
("Securities Act"), and the Note to Part I on Form S-8.
PART II.
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference
The following documents filed with the Securities and Exchange Commission (the "Commission")
by the Registrant (File No. 0-28846) are incorporated in this Registration Statement by reference:
(1) the Registrant's Annual Report on Form 10-K for the year ended December 31, 2006;
(2) the Registrant's Quarterly Report on Form 10-Q for the quarter ended March 31, 2007;
(3) the Registrant's Quarterly Report on Form 10-Q for the quarter ended June 30, 2007;
(4) Current Report on Form 8-K filed on April 30, 2007;
(5) Current Report on Form 8-K filed on May 4, 2007;
(6) Current Report on Form 8-K filed on July 30, 2007;
2
Table of Contents
(7) all other reports filed by the Registrant pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (the "Exchange Act") since December 31, 2006;
(8) the information contained in the Registrant's definitive Proxy Statement filed with the
Commission on March 23, 2007 relating to its 2007 Annual Meeting of Stockholders; and
(9) the description of Registrant's Common Stock, $1.00 par value which appears under the
caption "Effect of the Merger on Rights of Stockholders" as set forth in Pre-Effective Amendment
No. 1 to Registrant's Registration Statement on Form S-4 (Registration No. 333-137013) filed with
the Commission on October 3, 2006, including any amendments or reports filed for the purpose of
updating such description.
All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
Exchange Act after the date of this Registration Statement and prior to the filing of a post
effective amendment which indicates that all securities offered have been sold or which deregisters
all securities then remaining unsold shall be deemed to be incorporated by reference in this
Registration Statement and to be a part hereof from the date of filing such documents.
Item 4. Description of Securities
Not applicable.
Item 5. Interests of Named Experts and Counsel
Not applicable.
Item 6. Indemnification of Directors and Officers
Section 145 of the General Corporation Law of the State of Delaware ("Section 145"), Article
VIII of the Registrant's Restated Certificate of Incorporation, as amended, and Article VII of the
Registrant's By-Laws provide for the indemnification of the Registrant's directors and officers in
a variety of circumstances, which may include indemnification for liabilities under the Securities
Act of 1933. The general effect of these provisions is to provide that the Registrant shall
indemnify its directors and officers against expenses (including attorneys' fees), judgments, fines
and amounts paid in settlement actually and reasonably incurred by them in the proceeding in which
such persons are made a party by reason of being or having been a director or officer of
Registrant, but only if it is determined that they acted in good faith and in a manner they
reasonably believed to be in or not opposed to the best interest of the Registrant and, with
respect to any criminal action or proceeding, had no reasonable cause to believe their conduct was
unlawful. Such determination may be made by (i) a majority vote of a quorum consisting of
disinterested directors, (ii) an independent legal counsel in a written opinion (if no such quorum
is available or if a quorum of disinterested directors so directs), or (iii) the stockholders. The
Registrant will pay expenses incurred by its directors and officers prior to the final disposition
of such action, suit or proceeding, if the director or officer undertakes to repay such amount
unless it is ultimately determined that they are entitled to be indemnified by the Registrant.
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Table of Contents
The Registrant has insurance which, subject to certain policy limits, deductible amounts and
exclusions, insures directors and officers of the Registrant for liabilities incurred as a result
of acts committed in their capacity as directors and officers or claims made against them by reason
of their status as directors or officers.
As permitted pursuant to Section 102(b)(7) of the General Corporation Law of the State of
Delaware, the Restated Certificate of Incorporation, as amended, of the Registrant eliminates the
personal monetary liability of a director of the Registrant or its stockholders for breach of
fiduciary duty as a director, except for liability that results from (i) any breach of the
director's duty of loyalty to the Registrant or its stockholders; (ii) acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of law, (iii) Section 174
of the General Corporation Law of the State of Delaware (which Section pertains to a director's
liability for unlawful payments of dividends or unlawful stock purchases or redemptions); or (iv)
any transaction from which the director derived an improper personal benefit.
Item 7. Exemption from Registration Claimed
Not applicable.
Item 8. Exhibits
The exhibits filed herewith or incorporated by reference herein are set forth in the Exhibit
index filed as part of this Registration Statement on page 8 hereof.
Item 9. Undertakings
The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of
1933;
(ii) To reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set
forth in the Registration Statement;
(iii)
To include any material information with respect to the plan
of distribution not previously disclosed in the Registration Statement or any
material change to such information in the Registration Statement;
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Table of Contents
PROVIDED, HOWEVER, that paragraphs (1)(i) and (1)(ii) do not apply if the Registration Statement is
on Form S-3, Form S-8, and the information required to be included in a post-effective amendment by
those paragraphs is contained in reports filed with or furnished to the Commission by the
Registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the Registration Statement.
(2) That, for the purpose of determining any liability under the Securities Act of 1933, each
such post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial BONA FIDE offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
The undersigned Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the Registrant's annual report pursuant to Section
13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing
of an employee benefit plan's annual report pursuant to section 15(d) of the Securities Exchange
Act of 1934) that is incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial BONA FIDE offering thereof.
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Act and is, therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the Registrant of expenses incurred or paid by a
director, officer or controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person in connection with
the securities being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
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Table of Contents
SIGNATURES
The Registrant.
Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Ottawa, State of Illinois, on August 30,
2007.
CENTRUE FINANCIAL CORPORATION
(Registrant)
By:
/s/Thomas A. Daiber
Thomas A. Daiber
President and Chief Executive
Officer
(Principal Executive Officer)
By:
/s/Kurt R. Stevenson
Kurt R. Stevenson
Senior Executive Vice President and

Chief Financial Officer

(Principal Financial Officer and
Principal Accounting Officer)
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/Thomas A. Daiber
Thomas A. Daiber
President and Chief
Executive Officer
(Principal Executive Officer)
August 30, 2007
**
Dennis J. McDonnell
Chairman of the Board
and Director
August 30, 2007
**
Richard J. Berry
Director
August 30, 2007
**
Walter E. Breipohl
Director
August 30, 2007
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Table of Contents
Signature
Title
Date
**
Randall E. Ganim
Director
August 30, 2007
**
Michael A. Griffith
Director
August 30, 2007
**
Michael J. Hejna
Director
August 30, 2007
**
John A. Shinkle
Director
August 30, 2007
**
Mark L. Smith
Director
August 30, 2007
**
Scott C. Sullivan
Director
August 30, 2007
**By:
/s/Kurt R. Stevenson
Kurt R. Stevenson
Attorney-in-Fact
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Table of Contents
EXHIBIT INDEX
Exhibit
Number
Description
5.1
Opinion of Howard & Howard Attorneys, P.C.
23.1
Consent of Crowe Chizek and Company LLC
23.2
Consent of Howard & Howard Attorneys, P.C. (contained in their
opinion filed as Exhibit 5.1).
24
Power of Attorney
8