FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * GUENTHNER KEVIN   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) SVP & Chief Infor. Officer (Last) (First) (Middle) PO BOX 30918 3. Date of Earliest Transaction (Month/Day/Year) 02/01/2013 (Street) BILLINGS, MT 59116-0918 4. If Amendment, Date 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 (City) (State) (Zip) 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               8,760 I By 401(k) Plan Class A Common Stock 02/01/2013   C   2,198 A $ 0 12,865 D   Class A Common Stock 02/05/2013   S   1,009 D $ 17.29 11,856 D

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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 Underlying Securities (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 of Derivative Security: 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

$ 12.37

02/01/2013

M

8,000

02/04/2004

02/04/2014

Class B Common Stock

8,000

$ 12.37

0

D

Stock Options

$ 13.87

02/01/2013

M

6,800

02/03/2005

02/03/2015

Class B Common Stock

6,800

$ 13.87

0

D

Class B Common Stock (1)

$ 0

02/01/2013

M

14,800

03/05/2010(1)

12/31/2029(1)

Class A Common Stock

14,800

$ 0

17,415

D

Class B Common Stock (1)

$ 0

02/01/2013

F

12,602

03/05/2010(1)

12/31/2029(1)

Class B Common Sock

12,602 (2)

$ 0

4,813

D

Class B Common Stock (1)

$ 0

02/01/2013

C

2,198

03/05/2010(1)

12/31/2029(1)

Class A Common Stock

2,198

$ 0

2,615

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GUENTHNER KEVIN PO BOX 30918 BILLINGS, MT 59116-0918			SVP & Chief Infor. Officer

Signatures

/s/ TERRILL R. MOORE, Attorney in Fact for Reporting Person		02/05/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	On March 5, 2010, the Company recapitalized its existing common stock. The recapitalization included, among other things, a redesignation of existing common stock as Class B common stock, a four-for-one split of Class B common stock, and the creation of a new class of common stock designated as Class A common stock, which is listed on the NASDAQ stock market under the symbol "FIBK". 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.
(2)	Includes 11,217 shares for payment of option exercise price and 1,385 shares for payment of taxes, valued at $17.23 per share.

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