FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2015

Feb 19, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2015-02-19

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-02-17	Class A Common Stock	F	120	$26.15	Disposed	22618	Direct
2015-02-19	Class A Common Stock	M	1070	$14.37	Acquired	23688	Direct
2015-02-19	Class A Common Stock	M	834	$17.22	Acquired	24522	Direct
2015-02-19	Class A Common Stock	F	1435	$0.00	Disposed	23087	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-02-19	Stock Options	$14.37	M	1070	Disposed	2022-02-17	Class A Common Stock (1070)	Direct
2015-02-19	Stock Options	$17.22	M	834	Disposed	2023-02-15	Class A Common Stock (834)	Direct

Holdings (Non-Derivative)

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

Footnotes

F1: Disposition to the issuer of issuer securities in payment of minimum required withholding taxes due upon vesting of unvested shares.

F2: Includes 1,140 shares for payment of option exercise price and 295 shares for payment of taxes, valued at $26.08 per share.