Edgar Filing: GUENTHNER KEVIN

Ownership Submission

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Â GUENTHNER KEVIN

2. Date of Event Requiring Statement (Month/Day/Year)
03/22/2012

3. Issuer Name and Ticker or Trading Symbol
FIRST INTERSTATE BANCSYSTEM INC [FIBK]

(Last)

(First)

(Middle)

PO BOX 30918

4. 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

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

BILLINGS,Â MTÂ 59116-0918

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 Beneficially Owned

1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	10,783	D	Â
Class A Common Stock	8,760	I	By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Common Stock ⁽¹⁾	03/05/2010⁽¹⁾	12/31/2029⁽¹⁾	Class B Common Stock	2,615	$ 0	D	Â
Stock Options ⁽²⁾	01/29/2003	01/29/2013	Class B Common Stock	5,200	$ 11.25	D	Â
Stock Options ⁽²⁾	02/04/2004	02/04/2014	Class B Common Stock	8,000	$ 12.37	D	Â
Stock Options ⁽²⁾	02/03/2005	02/03/2015	Class B Common Stock	6,800	$ 13.87	D	Â
Stock Options ⁽²⁾	01/26/2006	01/26/2016	Class B Common Stock	12,000	$ 17	D	Â
Stock Options ⁽²⁾	01/25/2007	01/25/2017	Class B Common Stock	12,000	$ 20.62	D	Â
Stock Options ⁽²⁾	02/15/2008	02/15/2018	Class B Common Stock	12,000	$ 20.87	D	Â
Stock Options ⁽³⁾	05/15/2010	05/15/2019	Class B Common Stock	4,620	$ 15.25	D	Â
Stock Options ⁽³⁾	02/12/2011	02/12/2020	Class B Common Stock	4,908	$ 15	D	Â
Stock Options ⁽³⁾	02/14/2012	02/14/2021	Class A Common Stock	4,343	$ 14.2	D	Â
Stock Options ⁽³⁾	02/17/2013	02/17/2022	Class A Common Stock	4,466	$ 14.37	D	Â

Reporting Owners

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

Signatures

/s/ KEVIN GUENTHNER		03/30/2012
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Stock options vest 25% on date of grant and 25% on each annual anniversary of grant date.
(3)	Stock options vest in equal portions on first, second and third anniversaries of grant date.

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