FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2012

Nov 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2012-11-01

Reporting Person: GUENTHNER KEVIN (SVP & Chief Infor. Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-01	Class A Common Stock	C	884	$0.00	Acquired	11667	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-01	Stock Options	$11.25	M	5200	Disposed	2013-01-29	Class B Common Stock (5200)	Direct
2012-11-01	Class B Common Stock	$0.00	M	5200	Acquired	2029-12-31	Class A Common Stock (5200)	Direct
2012-11-01	Class B Common Stock	$0.00	F	4316	Disposed	2012-12-31	Class A Common Stock (4316)	Direct
2012-11-01	Class B Common Stock	$0.00	C	884	Disposed	2029-12-31	Class A Common Stock (884)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	8760	Indirect

Footnotes

F1: 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 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 discretion of the holder. The conversion feature of the Class B common stock does not expire.

F2: Includes 3,892 shares for payment of option exercise price and 424 shares for payment of taxes, valued at $15.03 per share.