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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

___________________________________________________________________________________________________________________________________________________ 

FORM 10-Q

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☒    Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2021

OR

 ☐    Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from                   to                   

COMMISSION FILE NUMBER 001-34653

________________________________________________________________________________________________________ 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  ☐ No  ☒

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date:

September 30, 2021 – Class A common stock			41,715,627
September 30, 2021 – Class B common stock			20,515,516

Quarterly Report on Form 10-Q

			FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES
			Index
			September 30, 2021
						Page Nos.
			Part I - Financial Information
Item 1.			Financial Statements (Unaudited)
			Consolidated Balance Sheets			3
			Consolidated Statements of Income			4
			Consolidated Statements of Comprehensive Income			5
			Consolidated Statements of Changes in Stockholders’ Equity			6
			Consolidated Statements of Cash Flows			8
			Notes to Unaudited Consolidated Financial Statements			10
Item 2.			Management's Discussion and Analysis of Financial Condition and Results of Operations			41
Item 3.			Quantitative and Qualitative Disclosures about Market Risk			56
Item 4.			Controls and Procedures			56
			Part II - Other Information
Item 1.			Legal Proceedings			56
Item 1A.			Risk Factors			56
Item 2.			Unregistered Sales of Equity Securities and Use of Proceeds			59
Item 3.			Defaults Upon Senior Securities			59
Item 4.			Mine Safety Disclosures			59
Item 5.			Other Information			59
Item 6.			Exhibits			60
Signatures						61