- 
        Signature
      
 
      - 
        /s/ Kirk D. Jensen, Attorney-in-Fact for Reporting Person
      
 
    
    
      
- 
        Stock symbol
      
 
      - 
        FIBK
      
 
    
    
      
- 
        Transactions as of
      
 
      - 
        Feb 1, 2022
      
 
    
    
      
- 
        Transactions value $
      
 
      - 
        $0
      
 
    
    
      
- 
        Form type
      
 
      - 
        3
      
 
    
    
      
- 
        Date filed
      
 
      - 
        2/2/2022, 09:43 AM
      
 
    
    
    
    
   
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | 
          Sym | 
          Class | 
          Transaction | 
          Value $ | 
          Shares | 
          Change % | 
          * Price $ | 
          Shares After | 
          Date | 
          Ownership | 
          Footnotes | 
        
      
      
          
            | holding | 
            FIBK | 
            Class A Common Stock | 
             | 
             | 
             | 
             | 
             | 
            0 | 
            Feb 1, 2022 | 
            Direct | 
            F1 | 
          
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Executed Power of Attorny on File Exhibit List EX-24 POA