FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2011

Aug 29, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2011-08-29

Reporting Person: SCOTT HOMER A JR (10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-08-29	Class B Common Stock	$0.00	J	3125	Acquired	2029-12-31	Class A Common Stock (3125)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	27410	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, 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 descretion of the holder. The conversion feature of the Class B common stock does not expire.

F2: On August 29, 2011, a charitable remainder unitrust of which reporting person is a beneficiary distributed to the reporting person 3,125 shares of FIBK Class B common stock in satisfaction of the trusts obligation to pay $37,625 to the reporting person. The reporting person disclaims beneficial ownership of of FIBK stock held by the trust except to the extent of he and his wife's pecuniary interest therein.