FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2016

May 3, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2016-04-29

Reporting Person: CRUM DAVID H (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-04-29	Class A Common Stock	M	2152	$17.75	Acquired	69866	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-04-29	Stock Options	$17.75	M	2152	Disposed	2016-05-05	Class B Common Stock (2152)	Direct

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. In addition, immediately subsequent to the receipt of the Class A shares pursuant to the option exercise, the form of beneficial ownership changed from direct to indirect by trust.