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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of report (date of earliest event reported): August 9, 2006
FIRST INTERSTATE BANCSYSTEM, INC.
(Exact name of registrant as specified in its charter)
         
Montana   33-64304   81-0331430
         
(State or other jurisdiction
of incorporation)
  (Commission
File No.)
  (IRS Employer
Identification No.)
         
401 North 31st Street, Billings, MT
  59116
     
(Address of principal executive offices)
  (Zip Code)
         
(406) 255-5390
 
(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:
    o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 
    o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
 
    o Pre-commencement communications pursuant to Rule 14d-2(b) under Exchange Act (17 CFR 240.14d-2(b))
 
    o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
 
 

 


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Item 8.01 Other Events.
SIGNATURE


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Item 8.01 Other Events.
On August 9, 2006, First Interstate BancSystem, Inc. received notification from its independent appraiser that the minority appraised value of its common stock was $77.25 per share, an increase of $2.75 from the May 19, 2006 valuation.

 


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SIGNATURE
     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.
Dated: August 9, 2006
         
  FIRST INTERSTATE BANCSYSTEM, INC.
 
 
  By:   /s/ LYLE R. KNIGHT    
    Lyle R. Knight   
    President and Chief Executive Officer