FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2013

May 24, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2013-05-22

Reporting Person: HAUGH JAMES W (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-22	Class A Common Stock	A	1044	$20.82	Acquired	3567	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	896	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$0.00	2029-12-31	Class A Common Stock (35064)	35064	Indirect

Footnotes

F1: The balance reported in Column 9 of Table II has been adjusted to reflect a conversion of 896 Class B common shares into Class A common shares. Such conversion occurred simultaneously with the February 1, 2013 exercise of stock options and was incorrectly reported on the reporting person's Form 4 filed with the SEC on February 5, 2013.

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, a four-for-one split of Class B common stock, and the creation of a new class of common stock designated as Class A common stock. An initial public offering of the Class A common stock, which is listed on the NASDAQ stock market under the symbol "FIBK", was commenced March 23, 2010 and concluded March 29, 2010. The Class B Common Stock is convertible at any time into Class A Common stock on a share for share basis at the descretion of the holder. The conversion feature of the Class B common stock does not expire.