FIRST INTERSTATE BANCSYSTEM INC — Director's Dealing 2010

Aug 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK)
CIK: 0000860413
Period of Report: 2010-08-13

Reporting Person: Leckie Ross E. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-13	Class A Common Stock	P	1560	$12.37	Acquired	1560	Indirect
2010-08-13	Class A Common Stock	P	440	$12.35	Acquired	2000	Indirect
2010-08-13	Class A Common Stock	P	2000	$12.38	Acquired	2000	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	1414	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$0.00	2029-12-31	Class A Common Stock (15472)	15472	Direct

Footnotes

F1: On March 5, 2010, the Company's shareholders approved proposals to recapitalize the Company's 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". All stock and stock option awards made subsequent to the recapitalization are Class A common shares.