FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2017

May 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2017-04-28

Reporting Person: EBZERY WILLIAM B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-04-28	Class A Common Stock	C	5916	$0.00	Acquired	5916	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-04-28	Stock Options (Right to Buy)	$22.25	M	5916	Disposed	2017-05-04	Class B Common Stock (5916)	Direct
2017-04-28	Class B Common Stock	$0.00	M	5916	Acquired		Class A Common Stock (5916)	Direct
2017-04-28	Class B Common Stock	$0.00	C	5916	Disposed		Class A Common Stock (5916)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	111661	Indirect
Class A Common Stock	1500	Indirect
Class A Common Stock	1500	Indirect
Class A Common Stock	340	Indirect
Class A Common Stock	29000	Indirect

Footnotes

F1: 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, and the reporting person elected to convert the shares upon receipt.