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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>UNITED
      STATES </strong></font></div>
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      AND EXCHANGE COMMISSION </strong></font></div>
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      DC 20549</strong></font></div>
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      8-K</strong></font></div>
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      REPORT</strong></font></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>PURSUANT
      TO SECTION 13 OR 15(D) OF THE </strong></font></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>SECURITIES
      EXCHANGE ACT OF 1934</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <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">Date
      of
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#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: 24pt; FONT-FAMILY: Times New Roman"><strong>Modtech
      Holdings, Inc. </strong></font></div>
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      Name of Registrant as Specified in Its Charter) </strong></font></div>
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                File Number)</strong></font></div>
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                Employer Identification No.)</strong></font></div>
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                Barrett Avenue, Perris, CA</strong></font></div>
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            <td align="left" valign="bottom" width="1%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
            </td>
            <td align="left" valign="top" width="30%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
            </td>
            <td align="left" valign="bottom" width="1%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
            </td>
            <td valign="top" width="29%">
              <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>(Zip
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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>(951)
      943-4014 </strong></font></div>
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      Telephone Number, Including Area Code) </strong></font></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>Not
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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>(Former
      Name or Former Address, if Changed Since Last Report) </strong></font></div>
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    <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">Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions: </font></div>
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              communications pursuant to Rule 425 under the Securities Act (17 CFR
              230.425)</font></td>
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                material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                240.14a-12) </font></div>
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                communications pursuant to Rule 14d-2(b) under the Exchange Act (17
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                240.14d-2(b)) </font></div>
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            <td align="left" valign="top" width="4%">
              <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: Wingdings">&#168;</font></div>
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                communications pursuant to Rule 13e-4(c) under the Exchange Act (17
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              <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"><strong>Item
                3.02</strong></font></div>
            </td>
            <td align="left" valign="top" width="82%">
              <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"><strong>Unregistered
                Sales of Equity Securities
</strong></font></div>
            </td>
          </tr>

      </table>
    </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: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Between
      May 1, 2006 and May 4, 2006, Modtech Holdings, Inc. (the &#8220;Company&#8221;) issued an
      aggregate of 325,000 shares of its common stock pursuant to the exercise of
      certain outstanding warrants. The warrants were originally issued in August
      2005
      in connection with the Company's previously announced private placement to
      certain accredited investors of common stock and warrants to purchase common
      stock. </font></div>
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    <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">The
      shares were issued at the warrant exercise price of $8 per share and the Company
      received gross proceeds of $2,600,000 from the exercise of the warrants. At
      May
      3, 2006, the aggregate number of shares issued pursuant to the exercise of
      the
      warrants surpassed 1% of the number of previously outstanding shares of the
      Company's common stock.</font></div>
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    <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">The
      shares issued upon exercise of the warrants are in addition to 728,900 shares
      of
      common stock issued on May 4, 2006 to the holder of the Company's $25.9 million
      Senior Subordinated Secured Convertible Note (the "Note") at a conversion price
      of $7.82 per share and the additional 189,189 shares of common stock issued
      to
      the holder of the Note in connection with such partial conversion for no
      additional consideration. The conversion was previously announced in the Form
      8-K filed earlier today. The partial conversion and issuance of shares as
      described in Item 3.02 of such Form 8-K has occurred.</font></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: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      issuance of the shares of common stock upon exercise of the warrants was made
      in
      reliance upon the exemption from registration set forth in Section 4(2) and
      Regulation D of the Securities Act of 1933. The offer and sale of the securities
      was conducted without general solicitation or advertising and made only to
      a
      limited number of offerees who represented that they were "accredited investors"
      under Rule 501 of Regulation D. When issued, the warrant certificates bore
      legends that restricted the transfer thereof and the underlying shares in
      accordance with applicable securities laws.</font></div>
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    <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">The
      shares issued upon exercise of the warrants have been registered for resale
      under the Securities Act of 1933. </font></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: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong><u>SIGNATURES
      </u></strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <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">Pursuant
      to the requirements of the Securities Exchange Act of 1934, the registrant
      has
      duly caused this report to be signed on its behalf by the undersigned thereunto
      duly authorized. </font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <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">Date:
      May
      4, 2006 </font></div>
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      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td align="justify" valign="top" width="5%">&#160;</td>
            <td align="left" colspan="2" valign="bottom" width="87%">&#160;</td>
          </tr>
          <tr>
            <td align="left" colspan="3" valign="top" width="92%">
              <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">Modtech
                Holdings, Inc.</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="5%">&#160;</td>
            <td align="left" colspan="2" valign="top" width="87%">&#160;</td>
          </tr>
          <tr>
            <td align="left" valign="top" width="5%">
              <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">by:</font></div>
            </td>
            <td align="left" colspan="2" valign="bottom" width="87%">
              <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">/s/
                Dennis L. Shogren</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="5%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
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{"company-data": {"conformed-name": "MODTECH HOLDINGS INC", "cik": "0001075066", "assigned-sic": "2452", "irs-number": "330825386", "state-of-incorporation": "CA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-25161", "film-number": "06809198"}, "business-address": {"street1": "2830 BARRETT AVE", "street2": "PO BOX 1240", "city": "PERRIS", "state": "CA", "zip": "92571", "phone": "9099434014"}, "mail-address": {"street1": "4675 MACARTHUR CT.,", "street2": "SUITE 710", "city": "NEWPORT", "state": "CA", "zip": "92660"}}
UNITED
      STATES
SECURITIES
      AND EXCHANGE COMMISSION
WASHINGTON,
      DC 20549
FORM
      8-K
CURRENT
      REPORT
PURSUANT
      TO SECTION 13 OR 15(D) OF THE
SECURITIES
      EXCHANGE ACT OF 1934
Date
      of
      report (Date of earliest event reported): May 4, 2006
Modtech
      Holdings, Inc.
(Exact
      Name of Registrant as Specified in Its Charter)
Delaware
000-25161
33-0825386
(State
                or Other Jurisdiction of Incorporation)
(Commission
                File Number)
(IRS
                Employer Identification No.)
2830
                Barrett Avenue, Perris, CA
92571
(Address
                of Principal Executive Offices)
(Zip
                Code)
(951)
      943-4014
(Registrant's
      Telephone Number, Including Area Code)
Not
      Applicable
(Former
      Name or Former Address, if Changed Since Last Report)
Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions:
¨
Written
              communications pursuant to Rule 425 under the Securities Act (17 CFR
              230.425)
¨
Soliciting
                material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                240.14a-12)
¨
Pre-commencement
                communications pursuant to Rule 14d-2(b) under the Exchange Act (17
                CFR
                240.14d-2(b))
¨
Pre-commencement
                communications pursuant to Rule 13e-4(c) under the Exchange Act (17
                CFR
                240.13e-4(c))
Item
                3.02
Unregistered
                Sales of Equity Securities
Between
      May 1, 2006 and May 4, 2006, Modtech Holdings, Inc. (the "Company") issued an
      aggregate of 325,000 shares of its common stock pursuant to the exercise of
      certain outstanding warrants. The warrants were originally issued in August
      2005
      in connection with the Company's previously announced private placement to
      certain accredited investors of common stock and warrants to purchase common
      stock.
The
      shares were issued at the warrant exercise price of $8 per share and the Company
      received gross proceeds of $2,600,000 from the exercise of the warrants. At
      May
      3, 2006, the aggregate number of shares issued pursuant to the exercise of
      the
      warrants surpassed 1% of the number of previously outstanding shares of the
      Company's common stock.
The
      shares issued upon exercise of the warrants are in addition to 728,900 shares
      of
      common stock issued on May 4, 2006 to the holder of the Company's $25.9 million
      Senior Subordinated Secured Convertible Note (the "Note") at a conversion price
      of $7.82 per share and the additional 189,189 shares of common stock issued
      to
      the holder of the Note in connection with such partial conversion for no
      additional consideration. The conversion was previously announced in the Form
      8-K filed earlier today. The partial conversion and issuance of shares as
      described in Item 3.02 of such Form 8-K has occurred.
The
      issuance of the shares of common stock upon exercise of the warrants was made
      in
      reliance upon the exemption from registration set forth in Section 4(2) and
      Regulation D of the Securities Act of 1933. The offer and sale of the securities
      was conducted without general solicitation or advertising and made only to
      a
      limited number of offerees who represented that they were "accredited investors"
      under Rule 501 of Regulation D. When issued, the warrant certificates bore
      legends that restricted the transfer thereof and the underlying shares in
      accordance with applicable securities laws.
The
      shares issued upon exercise of the warrants have been registered for resale
      under the Securities Act of 1933.
SIGNATURES
Pursuant
      to the requirements of the Securities Exchange Act of 1934, the registrant
      has
      duly caused this report to be signed on its behalf by the undersigned thereunto
      duly authorized.
Date:
      May
      4, 2006
Modtech
                Holdings, Inc.
by:
/s/
                Dennis L. Shogren
Dennis
                L. Shogren
Chief
                Financial Officer