FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2012

May 21, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2012-05-18

Reporting Person: SCOTT JAMES R (Director, 10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-18	Class B Common Stock	$0.00	J	558	Acquired	2029-12-31	Class A Common Stock (558)	Indirect
2012-05-18	Class B Common Stock	$0.00	J	558	Acquired	2029-12-31	Class A Common Stock (558)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	17764	Indirect

Footnotes

F1: 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 Class A common stock, which is listed on the NASDAQ stock market under the symbol "FIBK", was commenced March 23, 2010 and concluded on March 29, 2010. 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.

F2: On May 18, 2012, a charitable remainder unitrust of whihc the reporting person is a beneficiary, distributed to each the reporting person and his spouse 558 shares of FIBK Class B common stock in satisfaction of the trust's obligation to pay $7,689 to each the reporting person and his spouse. The reporting person disclaims beneficial ownership of the FIBK stock held by the trust except to the extent of he and his wife's pecuniary interest therein.