<SUBMISSION>
<ACCESSION-NUMBER>0001275287-06-002084
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20060421
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20060424
<DATE-OF-FILING-DATE-CHANGE>20060421
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>GLACIER BANCORP INC
<CIK>0000868671
<ASSIGNED-SIC>6022
<IRS-NUMBER>810519541
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-18911
<FILM-NUMBER>06773751
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>49 COMMONS LOOP
<STREET2>.
<CITY>KALISPELL
<STATE>MT
<ZIP>59901
<PHONE>4067564200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>49 COMMONS LOOP
<STREET2>.
<CITY>KALISPELL
<STATE>MT
<ZIP>59901
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>gb5488.htm
<DESCRIPTION>FORM 8-K
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<p  align="center"><font size="5" face="Times New Roman"><b>UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION<br> </b></font>
<font size="3"><b>Washington, D.C.&#160;&#160; 20549</b></font></p>
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<font size="5" face="Times New Roman"><b>Form 8-K</b></font></p>
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<font size="3" face="Times New Roman"><b>CURRENT REPORT</b></font></p>
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<font size="3" face="Times New Roman"><b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</b></font></p>
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<font size="2" face="Times New Roman"><b>Date of Report (Date of earliest event reported): April 21, 2006</b></font></p>
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<font size="6" face="Times New Roman"><b>GLACIER BANCORP, INC.</b></font><br> <font size="2" face="Times New Roman"><i>(Exact name of registrant as specified in its charter)</i></font></p>
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<font size="2" face="Times New Roman"><b>Montana<br> </b><i>(State or other jurisdiction of incorporation)</i></font></p>
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<font size="2" face="Times New Roman"><b>000-18911</b></font></p>  </td>
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<font size="2" face="Times New Roman"><b>81-0519541</b></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(Commission File Number)</i></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(IRS Employer Identification No.)</i></font></p>  </td>
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<font size="2" face="Times New Roman"><b>49 Commons Loop<br> Kalispell, Montana 59901<br> </b><i>(Address of principal executive offices)&#160; (zip code)</i></font></p>
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<font size="2" face="Times New Roman"><b>Registrant&#146;s telephone number, including area code: (406) 756-4200 </b></font></p>

<p><font size="2" face="Times New Roman">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions (see General Instruction A.2 below):</font></p>
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<font size="2" face="Times New Roman">Written communications pursuant to Rule 425 under   the Securities Act (17 CFR 230.425)</font></p>  </td>
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<font size="2" face="Times New Roman">Soliciting material pursuant to Rule 14a-12 under   the Exchange Act (17 CFR 240.14a-12)</font></p>  </td>
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<font size="2" face="Times New Roman">Pre-commencement communications pursuant to Rule   14d-2(b) under the Exchange Act of&#160;   (17 CFR 240.14d-2(b))</font></p>  </td>
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<font size="2" face="Times New Roman">Pre-commencement communications pursuant to Rule   13e-4(c) under the Exchange Act of&#160;   (17 CFR 240.13e-4(c))</font></p>  </td>
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<font size="2" face="Times New Roman"><b>Item 8.01 OTHER EVENTS</b></font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On April 20, 2006, Glacier Bancorp, Inc. (&#147;Glacier&#148;)&#160; announced that it had entered into a merger agreement with Citizens Development Company (&#147;Citizens&#148;) pursuant to which, if consummated, shares of Citizens will be converted into the right to receive shares of common stock of Glacier Bancorp, Inc.(&#147;Glacier&#148;) and cash.&#160; On April 21, 2006, Glacier issued a press release stating that in connection with, but not as a condition to, that transaction, Glacier intends to file a Registration Statement on Form S-3, in order to register approximately two million shares of its common stock.&#160; That press release is attached hereto as Exhibit 99.1 and incorporated herein by reference. </font></p>
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<font size="2" face="Times New Roman"><b>Item 9.01&nbsp;&nbsp;FINANCIAL STATEMENTS AND EXHIBITS </b></font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial statements. &#150; not applicable </font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pro forma financial information. &#150; not applicable</font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits.</font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Press Release dated April 21, 2006.</font></p>

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<font size="2" face="Times New Roman"><b>SIGNATURES</b></font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>

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  <p><font size="2" face="Times New Roman">Dated:&nbsp;&nbsp;April 21, 2006</font></p>  </td>
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  <p><font size="2" face="Times New Roman">GLACIER BANCORP, INC.</font></p>  </td>
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  <p><font size="2" face="Times New Roman">By:</font></p>  </td>
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  <p><font size="2" face="Times New Roman">/s/ Michael J. Blodnick</font></p>  </td>
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  <p><font size="2" face="Times New Roman">Michael J. Blodnick</font></p>  </td>
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  <p><font size="2" face="Times New Roman">President and Chief Executive Officer</font></p>  </td>
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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>gb5488ex991.htm
<DESCRIPTION>EXHIBIT 99.1
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<p  align=right><font size="2" face="Times New Roman"><b>Exhibit 99.1</b></font></p>
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<font size="2" face="Times New Roman"><b>Glacier Bancorp, Inc. Announces S-3 Registration</b></font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KALISPELL, Mont., April 21 /PRNewswire-FirstCall/ -- As just announced, Glacier Bancorp, Inc. (Nasdaq: GBCI) entered into a merger agreement with Citizens Development Company (&#147;Citizens&#148;) under which Citizens&#146; stock will be exchanged for $77 million of which 60% will be in the form of cash and 40% in stock.&#160; In connection with, but not as a condition to, that transaction Glacier intends to file an S-3 Registration Statement to register approximately two million shares of its common stock for future sale. Depending upon the market price of Glacier stock at the time of the offering, it is expected that one million Glacier common stock shares will be sold, including any underwriters&#146; over allotment.&#160; The offering is expected to be completed prior to the closing of the Citizens transaction and will strengthen Glacier&#146;s tangible and regulatory capital position.&#160; The
additional one million shares, which are not scheduled for sale, may be used to fund future acquisitions or general corporate purposes.</font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Glacier Bancorp, Inc. is the parent company for nine community banks operating from 71 banking offices in Montana, Idaho, Utah, Washington, and Wyoming.&#160; Glacier&#146;s existing banks include Glacier Bank, Kalispell; Glacier Bank, Whitefish; First Security Bank of Missoula; Valley Bank of Helena; Big Sky Western Bank, Bozeman; and Western Security Bank, Billings, all located in Montana; Mountain West Bank, Coeur d&#146;Alene, with operations in Idaho, Utah and eastern Washington; Citizens Community Bank, in Pocatello, Idaho; and First National Bank West, with offices in western Wyoming.&#160; At December 31, 2005, Glacier had total assets of approximately $3.7 billion and equity of $332 million.</font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Statements contained in this news release that are not historical fact are forward-looking statements, as the term is defined in the Private Securities Litigation Reform Act of 1995.&#160; Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those currently anticipated due to a large number of factors.&#160; Factors that may cause a difference include, but are not limited to, changes in interest rates, economic conditions, deposit and loan growth, real estate values, loan loss provisions, competition, customer retention and changes in legislation and regulation.&#160; Glacier assumes no obligation for updating any such forward-looking statements at any time.</font></p>

<p><font size="2" face="Times New Roman">SOURCE&#160; Glacier Bancorp, Inc.<br>&#160;&#160;&#160; -0-&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; 04/21/2006<br>&#160;&#160;&#160; /CONTACT:&#160; Michael J. Blodnick, +1-406-751-4701, or James H. Strosahl,<br> +1-406-751-4702, both of Glacier Bancorp, Inc./<br>&#160;&#160;&#160; (GBCI)</font></p>

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