FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2013

May 7, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2013-05-07

Reporting Person: Cerkovnik Robert M (Sr VP & Chief Credit Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-07	Class A Common Stock	C	2527	$0.00	Acquired	16986	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-07	Class B Common Stock	$0.00	C	2527	Disposed	2029-12-31	Class A Common Stock (2527)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	5248	Indirect
Class A Common Stock	1108	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$0.00	2026-12-31	Class A Common Stock (1492)	1492	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, 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 intial public offering of the Class A shares commenced March 23, 2010. 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.