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      MB Financial, Inc. Amended and Restated Omnibus Incentive Plan
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">As
      filed
      with the Securities and Exchange Commission on May 11, 2007</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Registration
      No. 333-__________</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
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      <div>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman"><strong>SECURITIES
      AND EXCHANGE COMMISSION</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Washington,
      D.C. 20549</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font id="TAB1" style="MARGIN-LEFT: 234pt"></font>&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>FORM
      S-8</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>REGISTRATION
      STATEMENT</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>UNDER</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>THE
      SECURITIES ACT OF 1933</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font id="TAB1" style="MARGIN-LEFT: 234pt"></font>&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman"><strong>MB
      FINANCIAL, INC.</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
      name of registrant as specified in its charter)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
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              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Maryland</strong></font></div>
            </td>
            <td valign="top" width="30%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>36-446025</strong></font></div>
            </td>
          </tr>
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            <td valign="top" width="48%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(State
                or other jurisdiction of</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">incorporation
                or organization)</font></div>
            </td>
            <td valign="top" width="30%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(I.R.S.
                Employer Identification No.)</font></div>
            </td>
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            <td valign="top" width="30%">&#160;</td>
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            <td valign="top" width="30%">&#160;</td>
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              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>800
                West Madison Street, Chicago, Illinois</strong></font></div>
            </td>
            <td valign="top" width="30%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>60607</strong></font></div>
            </td>
          </tr>
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            <td valign="top" width="48%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Address
                of principal executive offices)</font></div>
            </td>
            <td valign="top" width="30%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Zip
                Code)</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman"><strong>MB
      Financial, Inc. Amended and Restated Omnibus Incentive
      Plan</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Full
      title of the plan)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Craig
      M.
      Scheer, P.C.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Silver,
      Freedman &amp; Taff, L.L.P.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(a
      limited liability partnership including professional corporations)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">3299
      K
      Street, N.W., Suite 100</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington,
      D.C. 20007</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Name
      and
      address of agent for service)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(202)
      295-4500</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Telephone
      number, including area code, of agent for service)</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>CALCULATION
      OF REGISTRATION FEE</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
    <div align="center">
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            <td width="100%" style="border-bottom: black double;">&#160;</td>
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    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

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              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Title
                of Securities to be registered</strong></font></div>
            </td>
            <td align="left" valign="top" width="14%" style="border-bottom: black thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Amount
                to be registered</strong></font></div>
            </td>
            <td align="left" valign="top" width="12%" style="border-bottom: black thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Proposed
                maximum offering price per share</strong></font></div>
            </td>
            <td align="left" valign="top" width="14%" style="border-bottom: black thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Proposed
                maximum aggregate offering price</strong></font></div>
            </td>
            <td align="left" valign="top" width="17%" style="border-bottom: black thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Amount
                of registration fee</strong></font></div>
            </td>
          </tr>
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            <td align="left" valign="top" width="20%" style="border-bottom: black double;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Common
                Stock, par value</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$.01
                per share</font></div>
            </td>
            <td align="left" valign="middle" width="14%" style="border-bottom: black double;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">2,250,000
                shares</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(1)</sup></font></div>
            </td>
            <td align="left" valign="middle" width="12%" style="border-bottom: black double;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(2)</sup></font></div>
            </td>
            <td align="left" valign="middle" width="14%" style="border-bottom: black double;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$77,152,500
                </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(2)</sup></font></div>
            </td>
            <td align="left" valign="middle" width="17%" style="border-bottom: black double;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$2,369
                </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(2)</sup></font></div>
            </td>
          </tr>

      </table>
    </div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 18pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(1)</sup></font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
                to Rule 416 under the Securities Act of 1933, this Registration Statement
                includes an indeterminate number of additional shares as may be issuable
                as a result of a stock split, stock dividend or similar adjustment
                of the
                outstanding shares of the common stock of MB Financial,
                Inc.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

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            <td style="width: 18pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><sup>(2)</sup></font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Calculated
                in accordance with Rule 457(h) under the Securities Act of 1933,
                on the
                basis of $34.29 per share, which was the average of the high and
                low sale
                prices per share of the common stock on the Nasdaq Global Select
                Market on
                May 10, 2007. </font></div>
            </td>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>PART
      I</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>NFORMATION
      REQUIRED IN THE SECTION 10(a) PROSPECTUS</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      purpose of this Registration Statement on Form S-8 is to register additional
      shares of the common stock, par value $.01 per share, of MB Financial, Inc.
      (the
&#8220;Company&#8221;), authorized for issuance under the MB Financial, Inc. Amended and
      Restated Omnibus Incentive Plan (the &#8220;Plan&#8221;). The contents of the Company&#8217;s
      previously filed Registration Statements on Form S-8 (File Nos. 333-64584 and
      333-105872) relating to the Plan (the &#8220;Previously Filed Registration
      Statements&#8221;) are incorporated herein by reference, except for Items 3, 6 and 8
      of Part II of the Previously Filed Registration Statements.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><strong><font size="2"><a name="np2" href="#np2">Next
      Page</a></font></strong></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
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      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
        </div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div>
        <div id="GLHDR" style="WIDTH: 100%" align="right">
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      <div>&#160;</div>
      <div>&#160;</div>
      <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>PART
        II</strong></font></div>
      <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>INFORMATION
        NOT REQUIRED IN PROSPECTUS</strong></font></div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
      3.</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Incorporation
      of Certain Documents by Reference</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      following documents previously or concurrently filed by MB Financial, Inc.
      (the
&#8220;Company&#8221;) with the Commission (File No. 0-24566-01) are hereby incorporated by
      reference into this Registration Statement and the Prospectus to which this
      Registration Statement relates (the "</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Prospectus"</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">):</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="right">
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(a)&#160;
                </font></div>
            </td>
            <td align="right">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">the
                Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2006,
                as amended by the Form 10-K/A filed on March 2,
                2007;</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div>
      <table cellpadding="0" cellspacing="0" id="list" width="100%" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">

          <tr valign="top" style="line-height: 1.25;">
            <td align="right" style="width: 36pt;"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(b)&#160;</font></td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">the
                Company&#8217;s Quarterly Report on Form 10-Q for the quarterly period ended
                March 31, 2007;</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div>
      <table cellpadding="0" cellspacing="0" id="list" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td align="right" style="width: 36pt;"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(c)&#160;</font></td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">the
                Company&#8217;s Current Reports on Form 8-K filed on January 5, 2007 (two
                reports), February 27, 2007 and May 1, 2007; and
                </font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div>
      <table cellpadding="0" cellspacing="0" id="list" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td align="right" style="width: 36pt;"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(d)&#160;</font></td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">the
                description of the common stock, par value $.01 per share, of the
                Company
                contained in the Company&#8217;s Registration Statement on Form 8-A filed on
                October 9, 2001, and all amendments or reports filed for the purpose
                of
                updating such description.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">All
      documents filed by the Company with the Commission pursuant to Sections 13(a),
      13(c), 14, or 15(d) of the Securities Exchange Act of 1934, as amended (the
      &#8220;Exchange Act&#8221;), after the filing of this Registration Statement, and prior to
      the filing of a post-effective amendment which indicates that all securities
      offered hereby have been sold or which deregisters all securities then remaining
      unsold, shall be deemed incorporated by reference into this Registration
      Statement and the Prospectus and to be a part hereof and thereof from the date
      of the filing of such documents. Any statement contained in the documents
      incorporated, or deemed to be incorporated, by reference herein or therein
      shall
      be deemed to be modified or superseded for purposes of this Registration
      Statement and the Prospectus to the extent that a statement contained herein
      or
      therein or in any other subsequently filed document which also is, or is deemed
      to be, incorporated by reference herein or therein modifies or supersedes such
      statement. Any such statement so modified or superseded shall not be deemed,
      except as so modified or superseded, to constitute a part of this Registration
      Statement and the Prospectus.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Company shall furnish without charge to each person to whom the Prospectus
      is
      delivered, on the written or oral request of such person, a copy of any or
      all
      of the documents incorporated by reference, other than exhibits to such
      documents (unless such exhibits are specifically incorporated by reference
      to
      the information that is incorporated). Requests should be directed to: Doria
      Koros, Secretary, MB Financial, Inc., 6111 North River Road, Rosemont, Illinois
      60018, telephone number (847) 653-1992.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">All
      information appearing in this Registration Statement and the Prospectus is
      qualified in its entirety by the detailed information, including financial
      statements, appearing in the documents incorporated herein or therein by
      reference.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><strong><font size="2"><a name="np3" href="#np3">Next
      Page</a></font></strong></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
        <div id="GLFTR" style="WIDTH: 100%" align="left">
        </div>
      </div>
      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">2</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
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    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
      6.</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Indemnification
      of Directors and Officers</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Section
      2-405.2 of the Maryland General Corporation Law permits a Maryland corporation
      to include in its charter a provision limiting the liability of its directors
      and officers to the corporation and its stockholders for monetary damages
      except: (1) to the extent it is proven that the director or officer actually
      received an improper benefit or profit, for the amount of the improper benefit
      or profit; or (2) to the extent a final judgment or adjudication against the
      director or officer is based on a determination that the director'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">s
      or
      officer'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">s
      act or
      failure to act was the result of active and deliberate dishonesty and was
      material to the cause of action against the director or officer. The
      Registrant'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">s
      charter
      contains such a provision, thereby limiting the liability of its directors
      and
      officers to the maximum extent permitted by Maryland law.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Section
      2-418 of the Maryland General Corporation Law permits a Maryland corporation
      to
      indemnify a director or officer who is made a party to any proceeding by reason
      of service in that capacity against judgments, penalties, fines, settlements
      and
      reasonable expenses actually incurred unless it is proven that: (1) the act
      or
      omission of the director or officer was material to the matter giving rise
      to
      the proceeding and was committed in bad faith or with active and deliberate
      dishonesty; (2) the director or officer actually received an improper personal
      benefit; or (3) in the case of a criminal proceeding, the director or officer
      had reason to believe that his conduct was unlawful. The Maryland General
      Corporation Law provides that where a director or officer is a defendant in
      a
      proceeding by or in the right of the corporation, the director or officer may
      not be indemnified if he or she is found liable to the corporation. The Maryland
      General Corporation Law also provides that a director or officer may not be
      indemnified in respect of any proceeding alleging improper personal benefit
      in
      which he or she was found liable on the grounds that personal benefit was
      improperly received. A director or officer found liable in a proceeding by
      or in
      the right of the corporation or in a proceeding alleging improper personal
      benefit may petition a court to nevertheless order indemnification for expenses
      if the court determines that the director or officer is fairly and reasonably
      entitled to indemnification in view of all the relevant circumstances.
</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Section
      2-418 of the Maryland General Corporation Law provides that unless limited
      by
      the charter of a Maryland corporation, a director or officer who is successful
      on the merits or otherwise in defense of any proceeding must be indemnified
      against reasonable expenses. Section 2-418 also provides that a Maryland
      corporation may advance reasonable expenses to a director or officer upon the
      corporation's receipt of (a) a written affirmation by the director or officer
      of
      his or her good faith belief that he or she has met the standard of conduct
      necessary for indemnification by the corporation and (b) a written undertaking
      by the director or officer or on his or her behalf to repay the amount paid
      or
      reimbursed by the corporation if it is ultimately determined that the standard
      of conduct was not met.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Registrant's charter provides for indemnification of directors and officers
      to
      the maximum extent permitted by the Maryland General Corporation
      Law.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Under
      a
      directors'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
      and
      officers'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
      liability insurance policy, directors and officers of the Registrant are insured
      against certain liabilities.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div>
      <table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%">

          <tr valign="top" style="line-height: 1.25;">
            <td style="width: 36pt;">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
                8.</font></div>
            </td>
            <td>
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Exhibits</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">.</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">See
      Exhibit Index.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><strong><font size="2"><a name="np4" href="#np4">Next
      Page</a></font></strong></div>
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    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
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        <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">3</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">
        </div>
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    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SIGNATURES</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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
      Chicago, State of Illinois, on May 11, 2007.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">
      <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

          <tr valign="top" bgcolor="#ffffff">
            <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: "><strong>MB
              Financial, Inc.</strong></font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td>&#160;</td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">By:&#160;&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">/s/&#160;Mitchell
              Feiger</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td colspan="2"><font style="FONT-FAMILY: " size="1">&#160;</font></td>
            <td align="left">
              <hr style="COLOR: black" align="left" noshade size="2" width="80%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Mitchell
              Feiger</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td colspan="2">
              <div>&#160;</div>
            </td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">President
              and
              Chief Executive Officer&#160;</font></td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div>&#160;</div>
      <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>POWER
        OF ATTORNEY</strong></font></div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">We,
      the
      undersigned officers and directors of MB Financial, Inc., hereby severally
      and
      individually constitute and appoint Mitchell Feiger and Jill E. York, and each
      of them, the true and lawful attorneys and agents of each of us to execute
      in
      the name, place and stead of each of us (individually and in any capacity stated
      below) any and all amendments (including post-effective amendments) to this
      registration statement and all instruments necessary or advisable in connection
      therewith and to file the same with the Securities and Exchange Commission,
      each
      of said attorneys and agents to have the power to act with or without the others
      and to have full power and authority to do and perform in the name and on behalf
      of each of the undersigned every act whatsoever necessary or advisable to be
      done in the premises as fully and to all intents and purposes as any of the
      undersigned might or could do in person, and we hereby ratify and confirm our
      signatures as they may be signed by our said attorneys and agents or each of
      them to any and all such amendments and instruments.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
      to the requirements of the Securities Act of 1933, this registration statement
      has been signed below by the following persons in the capacities and on the
      dates indicated.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div align="left">
      <table border="1" bordercolor="white" cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Mitchell Feiger</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Mitchell
                Feiger</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director,
                President and Chief Executive Officer </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><em>(Principal
                Executive Officer)</em></font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Jill E. York</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Jill
                E. York</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Vice
                President and Chief Financial Officer </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><em>(Principal
                Financial Officer and Principal Accounting Officer)</em></font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                David P. Bolger</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">David
                P. Bolger</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Robert S. Engelman</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Robert
                S. Engelman, Jr.</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Charles Gries</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Charles
                Gries</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                James N. Hallene</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">James
                N. Hallene</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Thomas H. Harvey</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Thomas
                H. Harvey</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Patrick Henry</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Patrick
                Henry</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Richard J. Holmstrom</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Richard
                J. Holmstrom</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Karen J. May</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Karen
                J. May</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Richard M. Rieser, Jr.</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Richard
                M. Rieser, Jr.</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>/s/
                Ronald D. Santo</u></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Ronald
                D. Santo</font></div>
            </td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Director</font></div>
            </td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May
                11, 2007</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="26%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="29%" style="border-bottom: medium none;">&#160;</td>
            <td align="left" valign="top" width="23%" style="border-bottom: medium none;">&#160;</td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><strong><font size="2"><a name="np6" href="#np6">Next
      Page</a></font></strong></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
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        </div>
      </div>
      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">4</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
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      <div id="HDR">
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    <div>&#160;</div>
    <div>&#160;</div>
    <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>INDEX
      TO EXHIBITS</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><br>&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td valign="middle" width="9%" style="border-bottom: #ffffff thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibit
                </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Number</font></div>
            </td>
            <td align="left" valign="bottom" width="69%" style="border-bottom: black thin solid;">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Document</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">&#160;</td>
            <td align="left" valign="top" width="69%">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.1</font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Charter
                of the Registrant, as amended (included as Exhibit 3.1 to the Registrant&#8217;s
                Quarterly Report on Form 10-Q for the quarter ended March 31, 2007
                (File
                No. 0-24566-01) and incorporated herein by reference).</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.2</font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Bylaws
                of the Registrant, as amended (included as Exhibit 3.2 to the Registrant&#8217;s
                Annual Report on Form 10-K for the year ended December 31, 2006,
                as
                amended on Form 10-K/A filed on March 2, 2007 (File No. 0-24566-01)
                and
                incorporated herein by reference).</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.3</font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Form
                of the Registrant'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">s
                specimen common stock certificate (filed as Exhibit 4.1 to Amendment
                No.
                One to the Registrant'</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">s
                Registration Statement on Form S-4 (Registration Number 333-64584)
                and
                incorporated herein by reference).</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><a name="exhibit5" href="exhibit5.htm">5</a></font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><a href="exhibit5.htm">Opinion
                of Silver, Freedman &amp; Taff,
                L.L.P.</a></font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">23.1</font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Consent
                of Silver, Freedman &amp; Taff, L.L.P. (contained in Exhibit
                5)</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><a href="exhibit23-2.htm">23.2</a></font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><a href="exhibit23-2.htm">Consent
                of McGladrey &amp; Pullen
                LLP</a></font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="9%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">24</font></div>
            </td>
            <td align="left" valign="top" width="69%">
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              <div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Power
                of Attorney (contained on signature
                page)</font></div>
            </td>
          </tr>

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MB Financial, Inc. Amended and Restated Omnibus Incentive Plan
As
      filed
      with the Securities and Exchange Commission on May 11, 2007
Registration
      No. 333-__________
SECURITIES
      AND EXCHANGE COMMISSION
Washington,
      D.C. 20549
FORM
      S-8
REGISTRATION
      STATEMENT
UNDER
THE
      SECURITIES ACT OF 1933
MB
      FINANCIAL, INC.
(Exact
      name of registrant as specified in its charter)
Maryland
36-446025
(State
                or other jurisdiction of
incorporation
                or organization)
(I.R.S.
                Employer Identification No.)
800
                West Madison Street, Chicago, Illinois
60607
(Address
                of principal executive offices)
(Zip
                Code)
MB
      Financial, Inc. Amended and Restated Omnibus Incentive
      Plan
(Full
      title of the plan)
Craig
      M.
      Scheer, P.C.
Silver,
      Freedman & Taff, L.L.P.
(a
      limited liability partnership including professional corporations)
3299
      K
      Street, N.W., Suite 100
Washington,
      D.C. 20007
(Name
      and
      address of agent for service)
(202)
      295-4500
(Telephone
      number, including area code, of agent for service)
CALCULATION
      OF REGISTRATION FEE
Title
                of Securities to be registered
Amount
                to be registered
Proposed
                maximum offering price per share
Proposed
                maximum aggregate offering price
Amount
                of registration fee
Common
                Stock, par value
$.01
                per share
2,250,000
                shares
(1)
(2)
$77,152,500
(2)
$2,369
(2)
(1)
Pursuant
                to Rule 416 under the Securities Act of 1933, this Registration Statement
                includes an indeterminate number of additional shares as may be issuable
                as a result of a stock split, stock dividend or similar adjustment
                of the
                outstanding shares of the common stock of MB Financial,
                Inc.
(2)
Calculated
                in accordance with Rule 457(h) under the Securities Act of 1933,
                on the
                basis of $34.29 per share, which was the average of the high and
                low sale
                prices per share of the common stock on the Nasdaq Global Select
                Market on
                May 10, 2007.
Next
      Page
PART
      I
NFORMATION
      REQUIRED IN THE SECTION 10(a) PROSPECTUS
The
      purpose of this Registration Statement on Form S-8 is to register additional
      shares of the common stock, par value $.01 per share, of MB Financial, Inc.
      (the
"Company"), authorized for issuance under the MB Financial, Inc. Amended and
      Restated Omnibus Incentive Plan (the "Plan"). The contents of the Company's
      previously filed Registration Statements on Form S-8 (File Nos. 333-64584 and
      333-105872) relating to the Plan (the "Previously Filed Registration
      Statements") are incorporated herein by reference, except for Items 3, 6 and 8
      of Part II of the Previously Filed Registration Statements.
Next
      Page
PART
        II
INFORMATION
        NOT REQUIRED IN PROSPECTUS
Item
      3.
Incorporation
      of Certain Documents by Reference
.
The
      following documents previously or concurrently filed by MB Financial, Inc.
      (the
"Company") with the Commission (File No. 0-24566-01) are hereby incorporated by
      reference into this Registration Statement and the Prospectus to which this
      Registration Statement relates (the "
Prospectus"
):
(a)
the
                Company's Annual Report on Form 10-K for the year ended December 31, 2006,
                as amended by the Form 10-K/A filed on March 2,
                2007;
(b)
the
                Company's Quarterly Report on Form 10-Q for the quarterly period ended
                March 31, 2007;
(c)
the
                Company's Current Reports on Form 8-K filed on January 5, 2007 (two
                reports), February 27, 2007 and May 1, 2007; and
(d)
the
                description of the common stock, par value $.01 per share, of the
                Company
                contained in the Company's Registration Statement on Form 8-A filed on
                October 9, 2001, and all amendments or reports filed for the purpose
                of
                updating such description.
All
      documents filed by the Company with the Commission pursuant to Sections 13(a),
      13(c), 14, or 15(d) of the Securities Exchange Act of 1934, as amended (the
      "Exchange Act"), after the filing of this Registration Statement, and prior to
      the filing of a post-effective amendment which indicates that all securities
      offered hereby have been sold or which deregisters all securities then remaining
      unsold, shall be deemed incorporated by reference into this Registration
      Statement and the Prospectus and to be a part hereof and thereof from the date
      of the filing of such documents. Any statement contained in the documents
      incorporated, or deemed to be incorporated, by reference herein or therein
      shall
      be deemed to be modified or superseded for purposes of this Registration
      Statement and the Prospectus to the extent that a statement contained herein
      or
      therein or in any other subsequently filed document which also is, or is deemed
      to be, incorporated by reference herein or therein modifies or supersedes such
      statement. Any such statement so modified or superseded shall not be deemed,
      except as so modified or superseded, to constitute a part of this Registration
      Statement and the Prospectus.
The
      Company shall furnish without charge to each person to whom the Prospectus
      is
      delivered, on the written or oral request of such person, a copy of any or
      all
      of the documents incorporated by reference, other than exhibits to such
      documents (unless such exhibits are specifically incorporated by reference
      to
      the information that is incorporated). Requests should be directed to: Doria
      Koros, Secretary, MB Financial, Inc., 6111 North River Road, Rosemont, Illinois
      60018, telephone number (847) 653-1992.
All
      information appearing in this Registration Statement and the Prospectus is
      qualified in its entirety by the detailed information, including financial
      statements, appearing in the documents incorporated herein or therein by
      reference.
Next
      Page
2
Item
      6.
Indemnification
      of Directors and Officers
.
Section
      2-405.2 of the Maryland General Corporation Law permits a Maryland corporation
      to include in its charter a provision limiting the liability of its directors
      and officers to the corporation and its stockholders for monetary damages
      except: (1) to the extent it is proven that the director or officer actually
      received an improper benefit or profit, for the amount of the improper benefit
      or profit; or (2) to the extent a final judgment or adjudication against the
      director or officer is based on a determination that the director'
s
      or
      officer'
s
      act or
      failure to act was the result of active and deliberate dishonesty and was
      material to the cause of action against the director or officer. The
      Registrant'
s
      charter
      contains such a provision, thereby limiting the liability of its directors
      and
      officers to the maximum extent permitted by Maryland law.
Section
      2-418 of the Maryland General Corporation Law permits a Maryland corporation
      to
      indemnify a director or officer who is made a party to any proceeding by reason
      of service in that capacity against judgments, penalties, fines, settlements
      and
      reasonable expenses actually incurred unless it is proven that: (1) the act
      or
      omission of the director or officer was material to the matter giving rise
      to
      the proceeding and was committed in bad faith or with active and deliberate
      dishonesty; (2) the director or officer actually received an improper personal
      benefit; or (3) in the case of a criminal proceeding, the director or officer
      had reason to believe that his conduct was unlawful. The Maryland General
      Corporation Law provides that where a director or officer is a defendant in
      a
      proceeding by or in the right of the corporation, the director or officer may
      not be indemnified if he or she is found liable to the corporation. The Maryland
      General Corporation Law also provides that a director or officer may not be
      indemnified in respect of any proceeding alleging improper personal benefit
      in
      which he or she was found liable on the grounds that personal benefit was
      improperly received. A director or officer found liable in a proceeding by
      or in
      the right of the corporation or in a proceeding alleging improper personal
      benefit may petition a court to nevertheless order indemnification for expenses
      if the court determines that the director or officer is fairly and reasonably
      entitled to indemnification in view of all the relevant circumstances.
Section
      2-418 of the Maryland General Corporation Law provides that unless limited
      by
      the charter of a Maryland corporation, a director or officer who is successful
      on the merits or otherwise in defense of any proceeding must be indemnified
      against reasonable expenses. Section 2-418 also provides that a Maryland
      corporation may advance reasonable expenses to a director or officer upon the
      corporation's receipt of (a) a written affirmation by the director or officer
      of
      his or her good faith belief that he or she has met the standard of conduct
      necessary for indemnification by the corporation and (b) a written undertaking
      by the director or officer or on his or her behalf to repay the amount paid
      or
      reimbursed by the corporation if it is ultimately determined that the standard
      of conduct was not met.
The
      Registrant's charter provides for indemnification of directors and officers
      to
      the maximum extent permitted by the Maryland General Corporation
      Law.
Under
      a
      directors'
and
      officers'
liability insurance policy, directors and officers of the Registrant are insured
      against certain liabilities.
Item
                8.
Exhibits
.
See
      Exhibit Index.
Next
      Page
3
SIGNATURES
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
      Chicago, State of Illinois, on May 11, 2007.
MB
              Financial, Inc.
By:
/s/ Mitchell
              Feiger
Mitchell
              Feiger
President
              and
              Chief Executive Officer
POWER
        OF ATTORNEY
We,
      the
      undersigned officers and directors of MB Financial, Inc., hereby severally
      and
      individually constitute and appoint Mitchell Feiger and Jill E. York, and each
      of them, the true and lawful attorneys and agents of each of us to execute
      in
      the name, place and stead of each of us (individually and in any capacity stated
      below) any and all amendments (including post-effective amendments) to this
      registration statement and all instruments necessary or advisable in connection
      therewith and to file the same with the Securities and Exchange Commission,
      each
      of said attorneys and agents to have the power to act with or without the others
      and to have full power and authority to do and perform in the name and on behalf
      of each of the undersigned every act whatsoever necessary or advisable to be
      done in the premises as fully and to all intents and purposes as any of the
      undersigned might or could do in person, and we hereby ratify and confirm our
      signatures as they may be signed by our said attorneys and agents or each of
      them to any and all such amendments and instruments.
Pursuant
      to the requirements of the Securities Act of 1933, this registration statement
      has been signed below by the following persons in the capacities and on the
      dates indicated.
/s/
                Mitchell Feiger
Mitchell
                Feiger
Director,
                President and Chief Executive Officer
(Principal
                Executive Officer)
May
                11, 2007
/s/
                Jill E. York
Jill
                E. York
Vice
                President and Chief Financial Officer
(Principal
                Financial Officer and Principal Accounting Officer)
May
                11, 2007
/s/
                David P. Bolger
David
                P. Bolger
Director
May
                11, 2007
/s/
                Robert S. Engelman
Robert
                S. Engelman, Jr.
Director
May
                11, 2007
/s/
                Charles Gries
Charles
                Gries
Director
May
                11, 2007
/s/
                James N. Hallene
James
                N. Hallene
Director
May
                11, 2007
/s/
                Thomas H. Harvey
Thomas
                H. Harvey
Director
May
                11, 2007
/s/
                Patrick Henry
Patrick
                Henry
Director
May
                11, 2007
/s/
                Richard J. Holmstrom
Richard
                J. Holmstrom
Director
May
                11, 2007
/s/
                Karen J. May
Karen
                J. May
Director
May
                11, 2007
/s/
                Richard M. Rieser, Jr.
Richard
                M. Rieser, Jr.
Director
May
                11, 2007
/s/
                Ronald D. Santo
Ronald
                D. Santo
Director
May
                11, 2007
Next
      Page
4
INDEX
      TO EXHIBITS
Exhibit
Number
Document
4.1
Charter
                of the Registrant, as amended (included as Exhibit 3.1 to the Registrant's
                Quarterly Report on Form 10-Q for the quarter ended March 31, 2007
                (File
                No. 0-24566-01) and incorporated herein by reference).
4.2
Bylaws
                of the Registrant, as amended (included as Exhibit 3.2 to the Registrant's
                Annual Report on Form 10-K for the year ended December 31, 2006,
                as
                amended on Form 10-K/A filed on March 2, 2007 (File No. 0-24566-01)
                and
                incorporated herein by reference).
4.3
Form
                of the Registrant'
s
                specimen common stock certificate (filed as Exhibit 4.1 to Amendment
                No.
                One to the Registrant'
s
                Registration Statement on Form S-4 (Registration Number 333-64584)
                and
                incorporated herein by reference).
5
Opinion
                of Silver, Freedman & Taff,
                L.L.P.
23.1
Consent
                of Silver, Freedman & Taff, L.L.P. (contained in Exhibit
                5)
23.2
Consent
                of McGladrey & Pullen
                LLP
24
Power
                of Attorney (contained on signature
                page)