SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Cerkovnik Robert M
(Last) (First) (Middle)
P.O. BOX 30918
(Street)
BILLINGS MT 59116
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
FIRST INTERSTATE BANCSYSTEM INC [ FIBK ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Sr VP & Chief Credit Officer
3. Date of Earliest Transaction (Month/Day/Year)
02/19/2014
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 02/19/2014 M 6,146 A $14.67(1) 25,254 D
Class A Common Stock 02/19/2014 F 4,525(2) D $0.00 20,729 D
Class A Common Stock 5,248 I By 401(k) Plan
Class A Common Stock 1,108 I By Spouse
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options $20.62 02/19/2014 M 3,600 01/25/2007 01/25/2017 Class B Common Stock 3,600 $20.62 0 D
Stock Options $20.87 02/19/2014 M 3,200 02/15/2008 02/15/2018 Class B Common Stock 3,200 $20.87 0 D
Stock Options $14.2 02/19/2014 M 3,170 02/14/2012 02/14/2021 Class A Common Stock 3,170 $14.2 0 D
Stock Options $14.37 02/19/2014 M 2,142 02/17/2013 02/17/2022 Class A Common Stock 2,142 $14.37 1,070 D
Stock Options $17.22 02/19/2014 M 834 02/15/2014 02/15/2020 Class A Common Stock 834 $17.22 1,669 D
Class B Common Stock(3) $0.00 02/19/2014 M 6,800 03/05/2010(3) 12/31/2029(3) Class A Common Stock 6,800 $20.74(4) 7,096 D
Class B Common Stock(3) $0.00 02/19/2014 F 6,045(5) 03/05/2010(3) 12/31/2029(3) Class A Common Stock 6,045 $0.00 1,051 D
Class B Common Stock(3) $0.00 03/05/2010(3) 12/31/2029(3) Class A Common Stock 1,492 1,492 I By IRA
Explanation of Responses:
1. The price reported in column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $14.20 to $17.22. The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.
2. Includes 3,562 shares for payment of option exercise price and 963 shares for payment of taxes, valued at $25.31 per share.
3. The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the descretion of the holder. The conversion feature of the Class B common stock does not expire.
4. The price reported in Column 8 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $20.62 to $20.87. Reporting Person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding number of shares purchased at each separate price within the range set forth in this Form 4.
5. Includes 5,572 shares for payment of option exercise price and 473 shares for payment of taxes, valued at $25.31 per share.
Remarks:
/s/ CAROL DONALDSON, Attorney-in-Fact for Reporting Person 02/20/2014
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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