FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2013

May 14, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2013-05-10

Reporting Person: EBZERY WILLIAM B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-10	Class A Common Stock	M	2692	$11.50	Acquired	8112	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-10	Stock Option	$11.50	M	2692	Disposed	2013-06-02	Class B Common Stock (2692)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	94580	Indirect
Class A Common Stock	18250	Indirect

Footnotes

F1: Simultaneous with exercise of stock options, an election was made to immediately convert Class B commons shares received to Class A common shares.