FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2012

Nov 6, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2012-11-02

Reporting Person: MOORE TERRILL R (Exec. Vice President & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-02	Class A Common Stock	C	695	$0.00	Acquired	61536	Direct
2012-11-05	Class A Common Stock	S	2000	$14.937	Disposed	59536	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-02	Stock Options	$11.25	M	4000	Disposed	2013-01-29	Class B Common Stock (4000)	Direct
2012-11-02	Class B Common Stock	$0.00	M	4000	Acquired	2029-12-31	Class A Common Stock (4000)	Direct
2012-11-02	Class B Common Stock	$0.00	F	3305	Disposed	2029-12-31	Class A Common Stock (3305)	Direct
2012-11-02	Class B Common Stock	$0.00	C	695	Disposed	2029-12-31	Class A Common Stock (695)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	8800	Indirect
Class A Common Stock	16572	Indirect
Class A Common Stock	1500	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 2,972 shares for payment of option exercise price and 333 shares for payment of taxes, valued at $15.14 per share.