FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2017

Oct 6, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2017-10-04

Reporting Person: SCOTT RANDALL I (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-10-04	Class A Common Stock	M	1430	$0.00	Acquired	1430	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-10-04	Class B Common Stock	$0.00	M	1430	Disposed		Class A Common Stock (1430)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	19391	Indirect
Class A Common Stock	9648	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$0.00		Class A Common Stock (156279)	156279	Indirect
Class B Common Stock	$0.00		Class A Common Stock (3795676)	3795676	Indirect
Class B Common Stock	$0.00		Class A Common Stock (85836)	85836	Indirect
Class B Common Stock	$0.00		Class A Common Stock (803310)	803310	Indirect

Footnotes

F1: This number includes 716 shares that were held directly by Reporting Person but transferred by Reporting Person on August 8, 2017 into Reporting Person's Revocable Trust. This transfer did not affect Reporting Person's beneficial ownership.

F2: 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 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 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.