8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 25, 2018

FIRST INTERSTATE BANCSYSTEM, INC.

(Exact name of registrant as specified in its charter)

Montana	001-34653	81-0331430
(State or Other Jurisdiction of Incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)
401 North 31st Street, Billings, MT		59116
(Address of Principal Executive Offices)		(Zip Code)

(406) 255-5390

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☒ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CRF 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

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.  ☐

Item 1.01 Entry into a Material Definitive Agreement

On April 25, 2018, First Interstate BancSystem, Inc. (“First Interstate”) and Northwest Bancorporation, Inc. (“Northwest”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) pursuant to which Northwest will merge with and into First Interstate (the “Merger”). Following the Merger, Inland Northwest Bank will merge with and into First Interstate Bank.

Under the terms of the Merger Agreement, each outstanding share of Northwest common stock will be converted into the right to receive 0.516 shares of First Interstate Class A common stock.

The Merger Agreement includes customary representations and warranties made by First Interstate and Northwest, each with respect to its and its subsidiaries’ businesses. Each party has also agreed to customary covenants, including, among others, covenants relating to the conduct of its business during the interim period between the execution of the Merger Agreement and the consummation of the Merger.

The Merger has been unanimously approved by the Boards of Directors of each of First Interstate and Northwest and is expected to close late in the third quarter or early in the fourth quarter of 2018.

The Merger is also subject to approval by Northwest’s stockholders as well as regulatory approvals and other customary closing conditions. The Merger Agreement provides certain termination rights for both First Interstate and Northwest and further provides that a termination fee of $5,076,204 will be payable by Northwest to First Interstate upon termination of the Merger Agreement under certain circumstances.

In connection with entering into the Merger Agreement, the directors and executive officers of Northwest have each entered into a voting agreement (collectively, the “Voting Agreements”). The Voting Agreements generally require that the stockholder party thereto vote all of his or her shares of Northwest common stock in favor of the Merger Agreement and the transactions contemplated therein. The Voting Agreements will remain in effect until the earlier of (a) the final adjournment of the stockholder meeting held by Northwest to vote on the approval and adoption of the Merger Agreement and the transactions contemplated therein or (b) the termination of the Merger Agreement.

The foregoing summaries of the Merger Agreement and the Voting Agreement are qualified in their entirety by reference to the complete text of such documents, which are filed as Exhibit 2.1 and Exhibit A to Exhibit 2.1, respectively, to this Current Report on Form 8-K and which are incorporated herein by reference in their entirety. The representations, warranties and covenants of each party set forth in the Merger Agreement have been made only for purposes of, and were and are solely for the benefit of the parties to, the Merger Agreement, may be subject to limitations agreed upon by the contracting parties, including being qualified by confidential disclosures made for the purposes of allocating contractual risk between the parties to the Merger Agreement instead of establishing these matters as facts, and may be subject to standards of materiality applicable to the contracting parties that differ from those applicable to investors.

Accordingly, the representations and warranties may not describe the actual state of affairs at the date they were made or at any other time, and investors should not rely on them as statements of fact. In addition, such representations and warranties (1) will not survive consummation of the Merger, unless otherwise specified therein, and (2) were made only as of the date of the Merger Agreement or such other date as is specified in the Merger Agreement. Moreover, information concerning the subject matter of the representations and warranties may change after the date of the Merger Agreement, which subsequent information may or may not be fully reflected in the parties’ public disclosures. Accordingly, the Merger Agreement is included with this filing only to provide investors with information regarding the terms of the Merger Agreement, and not to provide investors with other factual information regarding First Interstate or Northwest, their respective affiliates or their respective businesses. The Merger Agreement should not be read alone, but should instead be read in conjunction with the other information regarding First Interstate, Northwest, their respective affiliates or their respective businesses, that will be contained in, or incorporated by reference into, the Registration Statement on Form S-4 that will include a proxy statement of Northwest and a prospectus of First Interstate, as well as in the Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings that First Interstate makes with the Securities and Exchange Commission (the “SEC”).

Item 8.01 Other Events

On April 25, 2018, First Interstate released a presentation to investors containing additional information regarding the Merger. A copy of the presentation is attached hereto as Exhibit 99.1.

On April 25, 2018, First Interstate and Northwest issued a joint press release announcing the execution of the Merger Agreement. A copy of the joint press release is attached hereto as Exhibit 99.2.

Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements about (1) the benefits of the merger between First Interstate and Northwest, including anticipated future results, cost savings and accretion to reported earnings that may be realized from the merger; (2) First Interstate and Northwest’s plans, objectives, expectations and intentions and other statements contained in this presentation that are not historical facts; and (3) other statements identified by words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates” or words of similar meaning.

Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. The following factors, among others, could cause actual results to differ materially from the anticipated results expressed in the forward-looking statements: the businesses of First Interstate and Northwest may not be combined successfully, or such combination may take longer than expected; the cost savings from the

Merger may not be fully realized or may take longer than expected; operating costs, customer loss and business disruption following the Merger may be greater than expected; governmental approvals of the Merger may not be obtained, or adverse regulatory conditions may be imposed in connection with governmental approvals of the Merger or otherwise; the stockholders of Northwest may fail to approve the Merger; credit and interest rate risks associated with First Interstate’s and Northwest’s respective businesses; and difficulties associated with achieving expected future financial results. Additional factors that could cause actual results to differ materially from those expressed in the forward-looking statements are discussed in First Interstate’s reports (such as the Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K) filed with the SEC and available at the SEC’s Internet website (www.sec.gov). All subsequent written and oral forward-looking statements concerning the proposed transaction or other matters attributable to First Interstate or Northwest or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements above. Except as required by law, First Interstate and Northwest do not undertake any obligation to update any forward-looking statement to reflect circumstances or events that occur after the date the forward-looking statement is made.

Additional Information and Where to Find It

This communication is being made in respect of the proposed Merger. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval.

In connection with the proposed transaction, First Interstate intends to file a registration statement on Form S-4 with the SEC, which will include a proxy statement of Northwest and a prospectus of First Interstate, and First Interstate and Northwest will file other documents regarding the proposed transaction with the SEC. Before making any voting or investment decision, investors and security holders of Northwest are urged to carefully read the entire registration statement and proxy statement/prospectus, when they become available, as well as any amendments or supplements to these documents, because they will contain important information about the proposed transaction. The documents filed by First Interstate with the SEC may be obtained free of charge at the SEC’s website at www.sec.gov. In addition, the documents filed by First Interstate may be obtained free of charge at its website at www.fibk.com or by contacting First Interstate BancSystem, Inc., 401 North 31^st Street, Billings, Montana 59116, Attention: Margie Morse, Investor Relations Officer, telephone (406) 255-5023.

First Interstate and Northwest and certain of their directors and executive officers may be deemed to be participants in the solicitation of proxies of Northwest’s shareholders in connection with the proposed transaction. Information about the directors and executive officers of First Interstate and their ownership of First Interstate common stock is set forth in the proxy statement for First Interstate’s 2018 Annual Meeting of Shareholders, as filed with the SEC on Schedule 14A on March 16, 2018. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the proxy statement/prospectus regarding the proposed Merger when it becomes available. Free copies of this document may be obtained as described in the preceding paragraph.

Item 9.01 Financial Statements and Exhibits

(a)	Financial Statements of Businesses Acquired. Not applicable.
(b)	Pro Forma Financial Information. Not applicable.
(c)	Shell Company Transactions. Not applicable.
(d)	Exhibits	Description
	2.1	Agreement and Plan of Merger dated as of April 25, 2018 by and between First Interstate BancSystem, Inc. Northwest Bancorporation, Inc.*
	99.1	Investor Presentation dated April 25, 2018.
	99.2	Joint Press Release dated April 25, 2018.

* Schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

	FIRST INTERSTATE BANCSYSTEM, INC.
DATE: April 25, 2018	By:	/s/ Kevin P. Riley
		Kevin P. Riley President and Chief Executive Officer

EX-2.1

Exhibit 2.1

AGREEMENT AND PLAN OF MERGER

DATED AS OF APRIL 25, 2018

BY AND BETWEEN

FIRST INTERSTATE BANCSYSTEM, INC.

AND

NORTHWEST BANCORPORATION, INC.

Table of Contents

ARTICLE I DEFINITIONS		1
ARTICLE II THE MERGER		7
2.1	The Merger	7
2.2	Closing	7
2.3	Effective Time	7
2.4	Effects of the Merger	7
2.5	Effect on Outstanding Shares of Company Common Stock	8
2.6	Dissenter’s Rights	8
2.7	Exchange Procedures	9
2.8	Effect on Outstanding Shares of Purchaser Common Stock	11
2.9	Directors of Surviving Corporation After Effective Time	11
2.10	Articles of Incorporation and Bylaws	11
2.11	Treatment of Stock Options	11
2.12	Treatment of Stock Purchase Warrants	11
2.13	Treatment of Restricted Stock	12
2.14	Bank Merger	12
2.15	Alternative Structure	12
2.16	Absence of Control	12
2.17	Additional Actions	12
2.18	Withholding	13
ARTICLE III REPRESENTATIONS AND WARRANTIES		13
3.1	Disclosure Letters; Standard	13
3.2	Representations and Warranties of the Company	14
3.3	Representations and Warranties of Purchaser	34
ARTICLE IV CONDUCT PENDING THE MERGER		46
4.1	Forbearances by the Company	46
4.2	Forbearances by Purchaser	50
ARTICLE V COVENANTS		51
5.1	Acquisition Proposals	51
5.2	Advice of Changes	52
5.3	Access and Information	53
5.4	Applications; Consents	54
5.5	Anti-Takeover Provisions	55
5.6	Additional Agreements	55
5.7	Publicity	55
5.8	Stockholder Meeting	56
5.9	Registration of Purchaser Common Stock	57
5.10	Notification of Certain Matters	57
5.11	Employee Benefit Matters	58
5.12	Indemnification	61
5.13	Stockholder Litigation	62
5.14	Disclosure Supplements	62

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5.15	Assumption of Northwest Bancorporation Capital Trust I Preferred Securities	63
ARTICLE VI CONDITIONS TO CONSUMMATION		63
6.1	Conditions to Each Party’s Obligations	63
6.2	Conditions to the Obligations of Purchaser	64
6.3	Conditions to the Obligations of the Company	65
ARTICLE VII TERMINATION		65
7.1	Termination	65
7.2	Termination Fee; Expenses	67
7.3	Effect of Termination	68
ARTICLE VIII CERTAIN OTHER MATTERS		68
8.1	Interpretation	68
8.2	Survival	68
8.3	Waiver; Amendment	68
8.4	Counterparts	68
8.5	Governing Law	69
8.6	Expenses	69
8.7	Notices	69
8.8	Entire Agreement; etc.	70
8.9	Successors and Assigns; Assignment	70
8.10	Severability	70

EXHIBITS

Exhibit A        Form of Northwest Bancorporation Voting Agreement

Exhibit B        Plan of Bank Merger

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Agreement and Plan of Merger

This is an Agreement and Plan of Merger, dated as of the 25^th day of April, 2018, by and between First Interstate BancSystem, Inc., a Montana corporation (“Purchaser”), and Northwest Bancorporation, Inc., a Washington corporation (the “Company”).

Introductory Statement

The Board of Directors of each of Purchaser and the Company have determined that this Agreement and the business combination and related transactions contemplated hereby are advisable and in the best interests of Purchaser and the Company, as the case may be, and in the best interests of their respective stockholders.

The parties hereto intend that the Merger (as defined herein) shall qualify as a reorganization under the provisions of
Section 368(a) of the IRC (as defined herein) for federal income tax purposes and that this Agreement be and is hereby adopted as a “plan of reorganization” within the meaning of Sections 354 and 361 of the IRC.

Purchaser and the Company each desire to make certain representations, warranties and agreements in connection with the business combination and related transactions provided for herein and to prescribe various conditions to such transactions.

As a condition and inducement to Purchaser’s willingness to enter into this Agreement, each executive officer and member of the Board of Directors of the Company has entered into an agreement dated as of the date hereof in the form of Exhibit A, pursuant to which he or she will vote his or her shares of Company Common Stock in favor of this Agreement and the transactions contemplated hereby (each, a “Voting Agreement”).

In consideration of their mutual promises and obligations hereunder, the parties hereto adopt and make this Agreement and prescribe the terms and conditions hereof and the manner and basis of carrying it into effect, which shall be as follows:

ARTICLE I

DEFINITIONS

The following terms are defined in this Agreement in the Section indicated:

Defined Term	Location of Definition
Articles of Merger	Section 2.3
Average Closing Price	Section 7(h)
Bank Merger	Section 2.14
Change of Recommendation	Section 5.8(b)
Closing	Section 2.2
Closing Date	Section 2.2
Company	Preamble
Company Benefit Plans	Section 3.2(r)(i)

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Defined Term	Location of Definition
Company Contract	Section 3.2(o)(i)
Company Equity Plan	Section 2.11
Company ERISA Affiliate	Section 3.2(r)(i)
Company Intellectual Property	Section 3.2(p)(i)
Company IT Systems	Section 3.2(p)(ii)
Company Qualified Plans	Section 3.2(r)(iv)
Company Restricted Stock	Section 2.13
Company Stock Option	Section 2.11
Company Stockholder Meeting	Section 5.8(a)
Company Warrant	Section 2.12
Continuing Employee	Section 5.11(a)
D.A. Davidson	Section 3.2(t)
Determination Date	Section 7.1(h)
Disclosure Letter	Section 3.1(a)
Dissenting Shares	Section 2.6
DOL	Section 3.2(r)(ii)
Effective Time	Section 2.3
Exchange Agent	Section 2.7(a)
Exchange Ratio	Section 2.5(a)
Final Index Price	Section 7.1(h)
Good Reason	Section 5.11(e)
INB	Section 2.14
Indemnified Party	Section 5.12(a)
Index Price	Section 7.1(h)
Index Ratio	Section 7.1(h)
Letter of Transmittal	Section 2.7(a)
MBCA	Section 2.1
Merger	Section 2.1
Merger Consideration	Section 2.5(a)
Multiemployer Plan	Section 3.2(r)(vii)
Multiple Employer Plan	Section 3.2(r)(vii)
OREO	Section 4.1(d)
PBGC	Section 3.2(r)(ii)
Proxy Statement-Prospectus	Section 5.9(a)
Purchaser	Preamble
Purchaser Benefit Plans	Section 3.3(r)(i)
Purchaser Contract	Section 3.3(p)(i)
Purchaser ERISA Affiliate	Section 3.3(r)(i)
Purchaser Intellectual Property	Section 3.3(cc)(i)
Purchaser IT Systems	Section 3.3(cc)(ii)
Purchaser Qualified Plans	Section 3.3(r)(iii)
Purchaser Reports	Section 3.3(h)
Starting Date	Section 7.1(h)
Starting Price	Section 7.1(h)
Surviving Corporation	Section 2.1
Voting Agreement	Preamble

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For purposes of this Agreement:

“Acquisition Proposal” means any proposal or offer, whether or not in writing, with respect to any of the following (other than the transactions contemplated hereunder): (i) any merger, consolidation, share exchange, business combination, or other similar transaction or series of transactions involving the Company or any of its Subsidiaries; (ii) any sale, lease, exchange, mortgage, pledge, transfer or other disposition of 20% or more of the Company’s consolidated assets in a single transaction or series of transactions; (iii) any tender offer or exchange offer for 20% or more of the outstanding shares of the Company’s capital stock or the filing of a registration statement under the Securities Act in connection therewith; (iv) any transaction that is similar in form, substance or purpose to any of the foregoing transactions, or any combination of the foregoing; or (v) any public announcement, notice or regulatory filing of a proposal, plan or intention to do any of the foregoing or any agreement to engage in any of the foregoing.

“Affiliate” of a Person means any person that, directly or indirectly through one or more intermediaries, controls, or is controlled by or is under common control with such Person.

“Agreement” means this Agreement and the exhibits and schedules hereto, each as amended, modified or restated from time to time in accordance with its terms.

“Average Closing Price” means the average closing price of Purchaser Common Stock as reported on The Nasdaq Stock Market, LLC for the twenty (20) consecutive trading days ending on and including the Determination Date.

“Business Day” means any day other than a Saturday, Sunday or federal holiday.

“Certificate” means certificates or book entry shares evidencing shares of Company Common Stock held by its stockholders.

“COBRA” shall mean the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended, and the regulations promulgated thereunder.

“Company Common Stock” means the common stock, no par value per share, of the Company.

“Company 401(k) Plan” means the Inland Northwest Bank 401(k) Profit Sharing Plan.

“CRA” means the Community Reinvestment Act.

“Determination Date” shall mean fifth day prior to the Closing Date, provided that if shares of the Purchaser Common Stock are not actually traded on The Nasdaq Stock Market, LLC on such day, the Determination Date shall be the immediately preceding day to the fifth day prior to the Closing Date on which shares of Purchaser Common Stock actually trade on The Nasdaq Stock Market, LLC.

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“Environmental Law” means any federal, state or local law, statute, ordinance, rule, code, order or regulation relating to (i) the protection, preservation or restoration of the environment (which includes, without limitation, air, water vapor, surface water, groundwater, drinking water supply, soil, surface land, subsurface land, plant and animal life or any other natural resource), or to human health or safety as it relates to Hazardous Materials, or (ii) the exposure to, or the use, storage, recycling, treatment, generation, transportation, processing, handling, labeling, production, release or disposal of, Hazardous Materials, in each case as amended and as now in effect. The term Environmental Law includes, without limitation, the Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980, the Federal Clean Air Act, the Federal Clean Water Act, the Federal Resource Conservation and Recovery Act of 1976, and the Federal Occupational Safety and Health Act of 1970 as it relates to Hazardous Materials, each as amended and as now in effect.

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“Excluded Shares” means Dissenting Shares and shares of Company Common Stock owned or held (including as treasury shares), other than in a bona fide fiduciary or agency capacity or in satisfaction of a debt previously contracted, by Purchaser, the Company or a Subsidiary of either.

“FDIC” means the Federal Deposit Insurance Corporation.

“Federal Reserve” means the Board of Governors of the Federal Reserve System.

“FHLB” means the Federal Home Loan Bank of Des Moines.

“GAAP” means U.S. generally accepted accounting principles.

“Governmental Entity” means any governmental or regulatory authority, agency, court, commission, or other administrative entity.

“Hazardous Material” means any substance (whether solid, liquid or gas) that is detrimental to human health or safety or to the environment, currently or hereafter listed, defined, designated or classified as hazardous, toxic, radioactive or dangerous, or otherwise regulated, under any Environmental Law, whether by type or by quantity, including any substance containing any such substance as a component. Hazardous Material includes, without limitation, any toxic waste, pollutant, contaminant, hazardous substance, toxic substance, hazardous waste, special waste, industrial substance, oil or petroleum, or any derivative or by-product thereof, radon, radioactive material, asbestos, asbestos-containing material, urea formaldehyde foam insulation, lead and polychlorinated biphenyl.

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“IRC” means the Internal Revenue Code of 1986, as amended.

“IRS” means the Internal Revenue Service.

“Knowledge” means, with respect to Purchaser, the actual Knowledge of those senior officers set forth in Purchaser’s Disclosure Letter and, with respect to the Company, the actual Knowledge of those senior officers set forth in the Company’s Disclosure Letter.

“Lien” means any charge, mortgage, pledge, security interest, claim, lien or encumbrance.

“Loan” means a loan, lease, advance, credit enhancement, guarantee, participation interest in a loan, or other extension of credit.

“Loan Property” means any property in which the applicable party (or a subsidiary of it) holds a security interest and, where required by the context, includes the owner or operator of such property, but only with respect to such property.

“Material Adverse Effect” means an effect, circumstance, occurrence or change that is material and adverse to the business, financial condition or results of operations of the Company or Purchaser, as the context may dictate, and its Subsidiaries, taken as a whole, or materially prevents, impairs or threatens the ability of either the Company or Purchaser, as the context may dictate, to perform its obligations under this Agreement or consummate the transactions contemplated by this Agreement; provided, however, that any such effect, circumstance, occurrence or change resulting from any (i) changes, after the date hereof, in laws, rules or regulations or GAAP or regulatory accounting requirements or interpretations thereof that apply to financial and/or depository institutions and/or their holding companies generally, (ii) changes, after the date hereof, in economic conditions affecting financial institutions generally, including but not limited to, changes in the general level of market interest rates, (iii) actions and omissions of Purchaser or the Company required under this Agreement or taken or omitted to be taken with the prior written consent, or at the request, of the other, including expenses incurred by the parties in consummating the transactions contemplated by this Agreement, (iv) worsening of national or international political or social conditions including the engagement by the United States in hostilities, whether or not pursuant to the declaration of a national emergency or war, or the occurrence of any military or terrorist attack upon or within the United States, (v) natural disaster or other force majeure event, and (vi) any failure, in and of itself, to meet internal or other estimates, predictions, projections or forecasts of revenue, net income or any other measure of financial performance (except to the extent that, with respect to this clause (vi), the facts or circumstances giving rise or contributing to failure to meet estimates or projections may be deemed to constitute, or be taken into account in determining whether there has been, a Material Adverse Effect, except to the extent such facts or circumstances are themselves excepted from the definition of Material Adverse Effect pursuant to any other clause of this definition) shall not be considered in determining if a Material Adverse Effect has occurred except, with respect to clauses (i), (ii), (iv) and (v), to the extent that the effects of such change uniquely affects such party and its Subsidiaries as compared to comparable U.S. banking organizations.

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“MDOB” means the Montana Division of Banking and Financial Institutions.

“Montana Secretary” means the Secretary of State of the State of Montana.

“Option Payment Amount” equals the Average Closing Price multiplied by the Exchange Ratio.

“Participation Facility” means any facility in which the applicable party (or a Subsidiary of it) participates in the management (including all property held as trustee or in any other fiduciary capacity) and, where required by the context, includes the owner or operator of such property, but only with respect to such property.

“Person” means an individual, corporation, limited liability company, partnership, association, trust, unincorporated organization or other entity.

“Purchaser Common Stock” means the Class A common stock, no par value per share, of Purchaser.

“Purchaser 401(k) Plan” means the First Interstate Bank 401(k) Plan.

“Registration Statement” means a registration statement on Form S-4 (and any amendments or supplements thereto) with respect to the issuance of Purchaser Common Stock in the Merger.

“SEC” means the U.S. Securities and Exchange Commission.

“Securities Act” means the Securities Act of 1933, as amended.

“Subsidiary” means a corporation, partnership, joint venture or other entity in which the Company or Purchaser, as the case may be, has, directly or indirectly, an equity interest representing 50% or more of any class of the capital stock thereof or other equity interests therein.

“Superior Proposal” means an unsolicited, bona fide written offer or proposal made by a third party to consummate an Acquisition Proposal that: (i) the Company’s Board of Directors determines in good faith, after consulting with its outside legal counsel and its financial advisor, would, if consummated, result in a transaction that is more favorable to the stockholders of the Company than the transactions contemplated hereby (taking into account all factors relating to such proposed transaction deemed relevant by the Company’s Board of Directors, including without limitation, the amount and form of consideration, the timing of payment, the risk of consummation of the transaction, the financing thereof and all other conditions thereto (including any adjustments to the terms and conditions of such transactions proposed by Purchaser in response to such Acquisition Proposal)); (ii) is for 100% of the outstanding shares of Company Common Stock or all or substantially all of the assets of the Company; and (iii) is reasonably likely to be completed on the terms proposed, in each case taking into account all legal, financial, regulatory and other aspects of such Acquisition Proposal.

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“Taxes” means all income, franchise, gross receipts, real and personal property, real property transfer and gains, wage and employment taxes.

“Washington Secretary” means the Secretary of State of the State of Washington.

“WBCA” means the Washington Business Corporation Act.

“WDFI” means the Washington State Department of Financial Institutions.

ARTICLE II

THE MERGER

2.1 The Merger. Upon the terms and subject to the conditions set forth in this Agreement, the Company will merge with and into Purchaser (the “Merger”) at the Effective Time. At the Effective Time, the separate corporate existence of the Company shall cease. Purchaser shall be the surviving corporation (hereinafter sometimes referred to in such capacity as the “Surviving Corporation”) in the Merger and shall continue to be governed by the Montana Business Corporation Act (the “MBCA”) and its name and separate corporate existence, with all of its rights, privileges, immunities, powers and franchises, shall continue unaffected by the Merger.

2.2 Closing. The closing of the Merger (the “Closing”) will take place by the electronic (PDF), facsimile or overnight courier exchange of executed documents or at a location and at a time as agreed to by the parties hereto on the date designated by Purchaser within fifteen (15) days following satisfaction or waiver (subject to applicable law) of the conditions to Closing set forth in Article VI (other than those conditions that by their nature are to be satisfied at the Closing), or such later date as the parties may otherwise agree (the “Closing Date”).

2.3 Effective Time. In connection with the Closing, Purchaser and the Company shall duly execute and deliver articles of merger to the Montana Secretary and the Washington Secretary, to the extent required by the relevant provision of the MBCA and the WBCA, respectively (collectively, the “Articles of Merger”). The Merger shall become effective at such time as the Articles of Merger are duly filed or at such later date or time as Purchaser and the Company agree and specify in the Articles of Merger (the date and time the Merger becomes effective being the “Effective Time”).

2.4 Effects of the Merger. The Merger will have the effects set forth in this Agreement, in the MBCA and the WBCA. Without limiting the generality of the foregoing, and subject thereto, from and after the Effective Time, Purchaser shall possess all of the properties, rights, privileges, powers and franchises of the Company and be subject to all of the debts, liabilities and obligations of the Company.

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2.5 Effect on Outstanding Shares of Company Common Stock.

(a) By virtue of the Merger, automatically and without any action on the part of the holder thereof, each share of Company Common Stock issued and outstanding at the Effective Time, other than Excluded Shares, shall become and be converted into the right to receive 0.516 shares (the “Exchange Ratio”) of Purchaser Common Stock (the “Merger Consideration”).

(b) Notwithstanding any other provision of this Agreement, no fraction of a share of Purchaser Common Stock and no certificates or scrip therefor will be issued in the Merger; instead, Purchaser shall pay to each holder of Company Common Stock who would otherwise be entitled to a fraction of a share of Purchaser Common Stock an amount in cash, rounded to the nearest cent, determined by multiplying such fraction by the Average Closing Price.

(c) If, between the date of this Agreement and the Effective Time, the outstanding shares of Purchaser Common Stock shall have been changed into a different number of shares or into a different class by reason of any stock dividend, subdivision, reclassification, recapitalization, split, combination or exchange of shares, or there shall be any extraordinary dividend or distribution paid, the Exchange Ratio shall be adjusted appropriately to provide the holders of Company Common Stock the same economic effect as contemplated by this Agreement prior to such event.

(d) As of the Effective Time, except for Dissenting Shares, each Excluded Share shall be canceled and retired and shall cease to exist, and no exchange or payment shall be made with respect thereto. All shares of Purchaser Common Stock that are held by the Company, if any, other than shares held in a fiduciary capacity or in satisfaction of a debt previously contracted, shall be canceled and shall constitute authorized but unissued shares.

2.6 Dissenter’s Rights. Each outstanding share of Company Common Stock, the holder of which has perfected his right to dissent under the WBCA and has not effectively withdrawn or lost such right as of the Effective Time (the “Dissenting Shares”) shall not be converted into or represent the right to receive the Merger Consideration hereunder and shall be entitled only to such rights as are available to such holder pursuant to the applicable provisions of the WBCA. Each holder of a Dissenting Share shall be entitled to receive the value of such Dissenting Share held by him in accordance with the applicable provisions of the WBCA; provided, that such holder complies with the procedures contemplated by and set forth in the applicable provisions of the WBCA. If any holder of any Dissenting Share shall effectively withdraw or lose such holder’s dissenter’s rights under the applicable provisions of the WBCA, each such Dissenting Share shall be exchangeable for the right to receive the Merger Consideration.

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2.7 Exchange Procedures.

(a) At or prior to the Effective Time, Purchaser shall deposit, or shall cause to be deposited, with American Stock Transfer & Trust Co. (the “Exchange Agent”), pursuant to an agreement entered into prior to the Closing, for the benefit of the holders of record of shares of Company Common Stock converted into the right to receive the Merger Consideration, for exchange in accordance with this Section 2.7, (i) the number of shares of Purchaser Common Stock sufficient to deliver the aggregate Merger Consideration and (ii) any cash payable in lieu of fractional shares pursuant to Section 2.5(b), and Purchaser shall instruct the Exchange Agent to timely deliver the Merger Consideration. Appropriate transmittal materials (“Letter of Transmittal”) shall be mailed as soon as practicable after the Effective Time to each holder of record of Company Common Stock. A Letter of Transmittal will be deemed properly completed only if the completed Letter of Transmittal is accompanied by one or more Certificates representing Company Common Stock (or customary affidavits and, if required by Purchaser pursuant to Section 2.7(h), indemnification regarding the loss or destruction of such Certificates or the guaranteed delivery of such Certificates) representing all shares of Company Common Stock to be converted thereby.

(b) At and after the Effective Time, each Certificate shall represent only the right to receive the Merger Consideration, and as to Dissenting Shares, shall represent only the right to receive applicable payments as set forth in Section 2.6. The Company shall provide to the Exchange Agent all information reasonably necessary for it to perform its obligations as specified herein.

(c) The Letter of Transmittal shall (i) specify that delivery shall be effected, and risk of loss and title to the Certificates shall pass, only upon delivery of the Certificates to the Exchange Agent, (ii) be in a form and contain any other provisions as Purchaser may reasonably determine and (iii) include instructions for use in effecting the surrender of the Certificates in exchange for the Merger Consideration. Upon the proper surrender of the Certificates to the Exchange Agent, together with a properly completed and duly executed Letter of Transmittal, the holder of such Certificates shall be entitled to receive in exchange therefor a certificate, or, at the election of Purchaser, a statement reflecting shares issued in book entry form, representing that number of whole shares of Purchaser Common Stock that such holder has the right to receive pursuant to Section 2.5(a) and a check in the amount equal to any cash in lieu of fractional shares such holder is entitled to pursuant to Section 2.5(b) and any dividends or other distributions to which such holder is entitled. Certificates so surrendered shall forthwith be canceled. As soon as practicable following receipt of the properly completed Letter of Transmittal and any necessary accompanying documentation, the Exchange Agent shall distribute Purchaser Common Stock and cash in lieu of fractional shares as provided herein. The Exchange Agent shall not be entitled to vote or exercise any rights of ownership with respect to the shares of Purchaser Common Stock held by it from time to time hereunder, except that it shall receive and hold all dividends or other distributions paid or distributed with respect to such shares for the account of the Persons entitled thereto. If there is a transfer of ownership of any shares of Company Common Stock not registered in the transfer records of the Company, the Merger Consideration shall be issued to the transferee thereof if the Certificates representing such Company Common Stock are presented to the Exchange Agent, accompanied by all documents required, in the reasonable judgment of Purchaser and the Exchange Agent, to evidence and effect such transfer and to evidence that any applicable stock transfer taxes have been paid.

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(d) No dividends or other distributions declared or made after the Effective Time with respect to Purchaser Common Stock issued pursuant to this Agreement shall be remitted to any person entitled to receive shares of Purchaser Common Stock hereunder until such Person surrenders his or her Certificates in accordance with this Section 2.7. Upon the surrender of such Person’s Certificates, such Person shall be entitled to receive any dividends or other distributions, without interest thereon, which subsequent to the Effective Time had become payable but not paid with respect to shares of Purchaser Common Stock represented by such Person’s Certificates.

(e) The stock transfer books of the Company shall be closed immediately upon the Effective Time and from and after the Effective Time there shall be no transfers on the stock transfer records of the Company of any shares of Company Common Stock. If, after the Effective Time, Certificates are presented to Purchaser, they shall be canceled and exchanged for the Merger Consideration deliverable in respect thereof pursuant to this Agreement in accordance with the procedures set forth in this Section 2.7.

(f) Any portion of the aggregate amount of cash to be paid in lieu of fractions of a share pursuant to Section 2.5, any dividends or other distributions to be paid pursuant to this Section 2.7 or any proceeds from any investments thereof that remains unclaimed by the holders of Company Common Stock for six months after the Effective Time shall be repaid by the Exchange Agent to Purchaser upon the written request of Purchaser. After such request is made, each holder of Company Common Stock who has not theretofore complied with this Section 2.7 shall look only to Purchaser for the Merger Consideration deliverable in respect of each share of Company Common Stock such stockholder holds, as determined pursuant to Section 2.5 of this Agreement, without any interest thereon. Notwithstanding the foregoing, neither the Exchange Agent nor any party to this Agreement (or any Affiliate thereof) shall be liable to any former holder of Company Common Stock for any amount delivered to a public official pursuant to applicable abandoned property, escheat or similar laws.

(g) Purchaser and the Exchange Agent shall be entitled to rely upon the Company’s stock transfer books to establish the identity of those Persons entitled to receive the Merger Consideration, which books shall be conclusive with respect thereto. The Company shall provide to the Exchange Agent all information reasonably necessary for it to perform its obligations as specified herein. In the event of a dispute with respect to ownership of stock represented by any Certificate, Purchaser and the Exchange Agent shall be entitled to deposit any Merger Consideration represented thereby in escrow with an independent third party and thereafter be relieved with respect to any claims thereto.

(h) If any Certificate shall have been lost, stolen or destroyed, upon the making of an affidavit of that fact by the Person claiming such Certificate to be lost, stolen or destroyed and the posting by such Person of a bond in such amount as the Exchange Agent may direct as indemnity against any claim that may be made against it with respect to such Certificate, the Exchange Agent will issue in exchange for such lost, stolen or destroyed Certificate the Merger Consideration deliverable in respect thereof pursuant to Section 2.5.

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2.8 Effect on Outstanding Shares of Purchaser Common Stock. At the Effective Time, and except as provided in Section 2.5(d), each share of Purchaser Common Stock issued and outstanding immediately prior to the Effective Time shall remain an issued and outstanding share of common stock of the Surviving Corporation and shall not be affected by the Merger.

2.9 Directors of Surviving Corporation After Effective Time. Immediately after the Effective Time, until their respective successors are duly elected or appointed and qualified, the directors of the Surviving Corporation shall consist of the directors of Purchaser serving immediately prior to the Effective Time.

2.10 Articles of Incorporation and Bylaws. The articles of incorporation of Purchaser, as in effect immediately prior to the Effective Time, shall be the articles of incorporation of the Surviving Corporation until thereafter amended in accordance with applicable law and the terms thereof. The bylaws of Purchaser, as in effect immediately prior to the Effective Time, shall be the bylaws of the Surviving Corporation until thereafter amended in accordance with applicable law and the terms of such bylaws.

2.11 Treatment of Stock Options. At the Effective Time, each option to acquire shares of Company Common Stock that is outstanding and unexercised immediately prior thereto (“Company Stock Option”) pursuant to the Inland Northwest Bank 2014 Share Incentive Plan (the “Company Equity Plan”) shall automatically become vested and shall be cancelled and, subject to Purchaser’s receipt of an option surrender agreement in the form set forth in the Purchaser’s Disclosure Letter, converted into the right to receive from Purchaser a cash payment in an amount, less required withholding taxes, equal to the product of (i) the number of shares of Company Common Stock subject to the Company Stock Option, multiplied by (ii) the amount by which the Option Payment Amount exceeds the exercise price of such Company Stock Option. If the exercise price of a Company Stock Option is greater than the Option Payment Amount, then at the Effective Time such Company Stock Option shall be cancelled without any payment made in exchange therefor. Such cash payment shall be made by wire transfer of immediately available funds on the Closing Date.

2.12 Treatment of Stock Purchase Warrants. At the Effective Time, each stock purchase warrant to acquire shares of Company Common Stock that is outstanding and unexercised immediately prior thereto (“Company Warrant”) shall be cancelled pursuant to the warrant termination agreement in the form set forth in the Purchaser’s Disclosure Letter and each holder thereof shall receive from Purchaser a cash payment in an amount, less required withholding taxes, equal to the product of (i) the number of shares of Company Common Stock subject to the Company Warrant, multiplied by (ii) the amount by which the Option Payment Amount exceeds the exercise price of such Company Warrant. If the exercise price of a Company Warrant is greater than the Option Payment Amount, then at the Effective Time such Company Warrant shall be cancelled without any payment made in exchange therefor. Such cash payment shall be made by wire transfer of immediately available funds on the Closing Date.

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2.13 Treatment of Restricted Stock. At the Effective Time, any vesting restrictions on each share of restricted stock outstanding immediately prior thereto (“Company Restricted Stock”) pursuant to the Company Equity Plan shall automatically lapse and shall be treated as issued and outstanding shares of Company Common Stock for the purposes of this Agreement, including but not limited to, the provisions of Section 2.5. Purchaser shall use reasonable best efforts to ensure Purchaser’s transfer agent will permit holders of Company Restricted Stock to satisfy their tax withholding obligations for the Company Restricted Stock via net settlement.

2.14 Bank Merger. As soon as practicable after the execution and delivery of this Agreement, First Interstate Bank, a wholly owned subsidiary of Purchaser, and Inland Northwest Bank (“INB”), a wholly owned subsidiary of the Company, shall enter into the Plan of Bank Merger, in the form attached hereto as Exhibit B, pursuant to which INB will merge with and into First Interstate Bank (the “Bank Merger”). The parties intend that the Bank Merger will become effective as soon as practicable following the Effective Time.

2.15 Alternative Structure. Notwithstanding anything to the contrary contained in this Agreement, prior to the Effective Time, Purchaser may specify that the structure of the transactions contemplated by this Agreement be revised and the parties shall enter into such alternative transactions as Purchaser may reasonably determine to effect the purposes of this Agreement; provided, however, that such revised structure shall not (i) alter or change the amount or kind of the Merger Consideration, (ii) materially impede or delay consummation of the transactions contemplated by this Agreement, or (iii) adversely limit or impact the qualification of the Merger as a reorganization under the provisions of Section 368(a) of the IRC. In the event that Purchaser elects to make such a revision, the parties agree to execute appropriate documents to reflect the revised structure.

2.16 Absence of Control. It is the intent of the parties hereto that Purchaser by reason of this Agreement shall not be deemed (until consummation of the transactions contemplated hereby) to control, directly or indirectly, the Company or to exercise, directly or indirectly, a controlling influence over the management or policies of the Company.

2.17 Additional Actions. If, at any time after the Effective Time, Purchaser or First Interstate Bank shall consider or be advised that any further deeds, assignments or assurances in law or any other acts are necessary or desirable to (i) vest, perfect or confirm, of record or otherwise, in Purchaser or First Interstate Bank its right, title or interest in, to or under any of the rights, properties or assets of the Company or INB, or (ii) otherwise carry out the purposes of this Agreement, INB, the Company and their officers and directors shall be deemed to have granted to Purchaser and First Interstate Bank an irrevocable power of attorney to execute and deliver, in such official corporate capacities, all such deeds, assignments or assurances in law or any other acts as are necessary or desirable to (a) vest, perfect or confirm, of record or otherwise, in Purchaser or First Interstate Bank its right, title or interest in, to or under any of the rights, properties or assets of the Company or INB or (b) otherwise carry out the purposes of this Agreement, and the officers and directors of Purchaser or First Interstate Bank are authorized in the name of the Company or INB or otherwise to take any and all such action.

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2.18 Withholding. Purchaser or the Exchange Agent will be entitled to deduct and withhold from the consideration otherwise payable pursuant to this Agreement or the transactions contemplated hereby to any holder of Company Common Stock such amounts as Purchaser (or any Affiliate thereof) or the Exchange Agent are required to deduct and withhold with respect to the making of such payment under the IRC, or any applicable provision of U.S. federal, state, local or non-U.S. tax law. To the extent that such amounts are properly withheld by Purchaser or the Exchange Agent, such withheld amounts will be treated for all purposes of this Agreement as having been paid to the holder of the Company Common Stock in respect of whom such deduction and withholding were made by Purchaser or the Exchange Agent.

ARTICLE III

REPRESENTATIONS AND WARRANTIES

3.1 Disclosure Letters; Standard.

(a) Prior to the execution and delivery of this Agreement, Purchaser and the Company have each delivered to the other a letter (each, its “Disclosure Letter”) setting forth, among other things, facts, circumstances and events the disclosure of which is required or appropriate either in response to an express disclosure requirement contained in a provision hereof or as an exception to one or more of their respective representations and warranties contained in Section 3.2 or Section 3.3, as applicable, or to one or more of its covenants contained in Articles IV or V (and making specific reference to the Section of this Agreement to which they relate). Disclosure in any paragraph of the Disclosure Letter shall apply only to the indicated Section of this Agreement except to the extent that it is reasonably clear on the face of such disclosure (notwithstanding the absence of a specific cross reference) that it is relevant to another paragraph of the Disclosure Letter or another Section of this Agreement.

(b) No representation or warranty of the Company or Purchaser contained in Sections 3.2 or 3.3, as applicable (other than (i) the representations and warranties contained in Sections 3.2(c) and 3.3(c), which shall be true in all respects, and (ii) the representations and warranties contained in Sections 3.2(a), 3.2(d), 3.2(e)(i) and (ii), 3.2(j), 3.2(u), 3.2(x), 3.3(a), 3.3(d), 3.3(e)(i) and (ii), 3.3(k) and 3.3(u), which shall be true in all material respects) will be deemed untrue or incorrect, and no party will be deemed to have breached a representation or warranty, as a consequence of the existence of any fact, event or circumstance unless such fact, event or circumstance, individually or taken together with all other facts, events or circumstances inconsistent with any representation or warranty contained in Sections 3.2 or 3.3, has had or is reasonably likely to have a Material Adverse Effect with respect to the Company or Purchaser, as the case may be (it being understood that, except with respect to Section 3.2(j), for purposes of determining the accuracy of such representations and warranties, all “Material Adverse Effect” qualifications and other materiality qualifications contained in such representations and warranties shall be disregarded).

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3.2 Representations and Warranties of the Company. Except (i) as disclosed in the Company’s Disclosure Letter, and (ii) for information and documents commonly known as “confidential supervisory information” that is prohibited from disclosure (and as to which nothing in this Agreement shall require disclosure), the Company represents and warrants to Purchaser that:

(a) Organization and Qualification. The Company is a corporation duly organized and validly existing under the laws of the State of Washington and is registered with the Federal Reserve as a bank holding company. The Company has all requisite corporate power and authority to own, lease and operate its properties and to conduct the business currently being conducted by it. The Company is duly qualified or licensed as a foreign corporation to transact business and is in good standing in each jurisdiction in which the character of the properties owned or leased by it or the nature of the business conducted by it makes such qualification or licensing necessary, except where the failure to be so qualified or licensed and in good standing would not have a Material Adverse Effect on the Company. The Company engages only in activities, and holds properties only of the types, permitted to bank holding companies by the Bank Holding Company Act of 1956, as amended, and the rules, regulations and interpretations promulgated thereunder.

(b) Subsidiaries.

(i) The Company’s Disclosure Letter sets forth with respect to each of the Company’s direct and indirect Subsidiaries its name, its jurisdiction of incorporation, the Company’s percentage ownership, the number of shares of stock or other equity interests owned or controlled by the Company and the name and number of shares held by any other person who owns any stock of the Subsidiary. The Company owns, directly or indirectly, all of the issued and outstanding shares of capital stock or other equity interests of each of its Subsidiaries, free and clear of any Liens. There are no contracts, commitments, agreements or understandings relating to the Company’s right to vote or dispose of any equity securities of its Subsidiaries. The Company’s ownership interest in each of its Subsidiaries is in compliance with all applicable laws, rules and regulations relating to equity investments by bank holding companies or Washington-chartered savings banks.

(ii) Each of the Company’s Subsidiaries is a corporation or limited liability company duly organized and validly existing under the laws of its jurisdiction of incorporation, has all requisite corporate power and authority to own, lease and operate its properties and to conduct the business currently being conducted by it and is duly qualified or licensed as a foreign corporation to transact business and is in good standing in each jurisdiction in which the character of the properties owned or leased by it or the nature of the business conducted by it makes such qualification or licensing necessary, except where the failure to be so qualified or licensed and in good standing would not have a Material Adverse Effect on the Company.

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(iii) The outstanding shares of capital stock of each Subsidiary have been validly authorized and are validly issued, fully paid and nonassessable. No shares of capital stock of any Subsidiary of the Company are or may be required to be issued by virtue of any options, warrants or other rights, no securities exist that are convertible into or exchangeable for shares of such capital stock or any other debt or equity security of any Subsidiary, and there are no contracts, commitments, agreements or understandings of any kind for the issuance of additional shares of capital stock or other debt or equity security of any Subsidiary or options, warrants or other rights with respect to such securities.

(iv) INB is a Washington-chartered commercial bank. No Subsidiary of the Company other than INB is an “insured depository institution” as defined in the Federal Deposit Insurance Act, as amended, and the applicable regulations thereunder. INB’s deposits are insured by the FDIC through the Deposit Insurance Fund to the fullest extent permitted by law. INB is a member in good standing of the FHLB and owns the requisite amount of stock therein.

(c) Capital Structure.

(i) The authorized capital stock of the Company consists of 30,000,000 shares of Company Common Stock and 500,000 shares of preferred stock, no par value per share.

(ii) As of the date of this Agreement:

(A) 7,518,686 shares of Company Common Stock (including 256,685 shares of Company Restricted Stock) are issued and outstanding, all of which are validly issued, fully paid and nonassessable and were issued in full compliance with all applicable laws and not in violation of any preemptive rights;

(B) no shares of Company preferred stock are issued and outstanding; and

(C) 200,000 shares of Company Common Stock are reserved for issuance pursuant to outstanding Company Stock Options (including exercisable and unexercisable Company Stock Options) and Company Warrants.

(iii) Set forth in the Company’s Disclosure Letter are: (a) a complete and accurate list of all outstanding Company Stock Options, including the names of the optionees, dates of grant, exercise prices, dates of vesting, dates of termination, shares subject to each grant and whether stock appreciation, limited or other similar rights were granted in connection with such options; (b) a complete and accurate list of all outstanding shares of Company Restricted Stock, including the names of the grantees, dates of grant, dates of vesting and shares subject to each grant; and (c) a complete and accurate list of all outstanding Company Warrants, including the names of the warrant holders, dates of grant, exercise prices, dates of vesting, dates of termination, shares subject to each grant and whether stock appreciation, limited or other similar rights were granted in connection with such warrants.

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(iv) No bonds, debentures, notes or other indebtedness having the right to vote on any matters on which stockholders of the Company may vote are issued or outstanding other than (i) $5.155 million of trust preferred securities issued by Northwest Bancorporation Capital Trust I; (ii) the guarantee by the Company to the holders of the debentures issued by the Northwest Bancorporation Capital Trust I; and (iii) $6 million of unsecured subordinated notes, due November 18, 2022.

(v) Except as set forth in this Section 3.2(c), as of the date of this Agreement, (A) no shares of capital stock or other voting securities of the Company are issued, reserved for issuance or outstanding, and (B) other than Company Stock Options and Company Warrants, neither the Company nor any of its Subsidiaries has or is bound by any outstanding subscriptions, options, warrants, calls, rights, convertible securities, commitments or agreements of any character obligating the Company or any of its Subsidiaries to issue, deliver or sell, or cause to be issued, delivered or sold, any additional shares of capital stock of the Company (including any rights plan or agreement) or obligating the Company or any of its Subsidiaries to grant, extend or enter into any such option, warrant, call, right, convertible security, commitment or agreement. Neither the Company nor any of its Subsidiaries has or is bound by any rights of any character relating to the purchase, sale or issuance or voting of, or right to receive dividends or other distributions on shares of Company Common Stock, or any other security of the Company or a Subsidiary of the Company or any securities representing the right to vote, purchase or otherwise receive any shares of Company Common Stock or any other security of the Company or a Subsidiary of the Company. Other than as stated herein, there are no outstanding securities or instruments that contain any redemption or similar provisions, and there are no outstanding contractual obligations of the Company or any of its Subsidiaries to repurchase, redeem or otherwise acquire any shares of capital stock of the Company or any of its Subsidiaries.

(vi) Other than the Voting Agreements and as set forth in the Company’s Disclosure Letter, there are no voting trusts, shareholder agreements, proxies or similar agreements to which the Company or any of its Subsidiaries is a party in effect with respect to the voting or transfer of the Company Common Stock or other voting securities or equity interests of the Company or granting any shareholder or other person any registration rights. The Company does not have in effect a “poison pill” or similar shareholder rights plan.

(d) Authority. The Company has all requisite corporate power and authority to enter into this Agreement, to perform its obligations hereunder and, subject to the consents, approvals and filings set forth in Section 3.2(f), to consummate the transactions contemplated by this Agreement. The execution and delivery of this Agreement and the consummation of the transactions contemplated by this Agreement have been duly authorized by all necessary corporate actions on the part of the Company’s Board of Directors, and no other corporate proceedings on the part of the Company are necessary to authorize this Agreement or to consummate the transactions contemplated by this Agreement other than the approval and adoption of this Agreement by the affirmative vote of the holders of two-thirds of the outstanding shares of Company Common Stock. The Company’s Board of Directors has determined that this Agreement is advisable and has directed that this Agreement be submitted to

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the Company’s stockholders for approval and adoption and has unanimously adopted a resolution to the foregoing effect and recommend that the stockholders approve and adopt this Agreement. This Agreement has been duly and validly executed and delivered by the Company and constitutes a valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights and remedies generally and to general principles of equity, whether applied in a court of law or a court of equity.

(e) No Violations. The execution, delivery and performance of this Agreement by the Company do not, and the consummation of the transactions contemplated by this Agreement will not, (i) assuming that the consents, approvals and filings referred to in Section 3.2(f) have been obtained and the applicable waiting periods have expired, violate any law, rule or regulation or any judgment, decree, order, governmental permit or license to which the Company or any of its Subsidiaries (or any of their respective properties) is subject, (ii) violate the articles of incorporation or bylaws of the Company or the similar organizational documents of any of its Subsidiaries or (iii) constitute a breach or violation of, or a default under (or an event that, with due notice or lapse of time or both, would constitute a default under), or result in the termination of, accelerate the performance required by, or result in the creation of any Lien upon any of the properties or assets of the Company or any of its Subsidiaries under, any of the terms, conditions or provisions of any note, bond, indenture, deed of trust, loan agreement or other agreement, instrument or obligation to which the Company or any of its Subsidiaries is a party, or to which any of their respective properties or assets may be subject.

(f) Consents and Approvals. Except for (i) filings of applications and notices with, receipt of approvals or no objections from, and the expiration of related waiting periods required by, federal and state banking authorities, including filings and notices with the Federal Reserve, the MDOB and the WDFI, (ii) the filing with the SEC of a Proxy Statement-Prospectus in definitive form relating to the meeting of the Company’s stockholders to be held in connection with this Agreement and the transactions contemplated hereby and of the Registration Statement in which such proxy statement will be included as a prospectus, and declaration of effectiveness of the Registration Statement, (iii) the filing of the Articles of Merger with the Montana Secretary pursuant to the MBCA and with Washington Secretary pursuant to the WBCA, the filing of a certificate for the Bank Merger with the MDOB and the filing of a notice for the Bank Merger with the WDFI, (iv) filing with The Nasdaq Stock Market LLC of a notification or application of the listing of the shares of Purchaser Common Stock to be issued in the Merger, (v) such filings and approvals as are required to be made or obtained under the securities or “Blue Sky” laws of various states in connection with the issuance of shares of Purchaser Common Stock pursuant to this Agreement, and (vi) the approval by the Company’s stockholders required to approve the Merger under Washington law, no consents or approvals of, or filings or registrations with, any Governmental Entity or any third party are required to be made or obtained by the Company in connection with the execution and delivery by the Company of this Agreement or the consummation by the Company of the Merger and the other transactions contemplated by this Agreement, including the Bank Merger. As of the date hereof, the Company has no Knowledge of any reason pertaining to the Company why any of the approvals referred to in this Section 3.2(f) should not be obtained without the imposition of any material condition or restriction described in Section 6.2(e).

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(g) Governmental Filings. The Company and each of its Subsidiaries has filed all reports, schedules, registration statements and other documents that it has been required to file since January 1, 2015 with the Federal Reserve, the FDIC and WDFI or any other Governmental Entity. As of their respective dates, each of such filings complied in all material respects with all laws or regulations under which it was filed (or was amended so as to be in compliance promptly following discovery of such noncompliance).

(h) Financial Statements. The Company has previously made available to Purchaser copies of (i) the consolidated statements of financial condition of the Company and its Subsidiaries as of December 31, 2017 and 2016 and related consolidated statements of income, comprehensive income, changes in shareholders’ equity and cash flows for each of the years in the two-year period ended December 31, 2017, together with the notes thereto, accompanied by the audit report of the Company’s independent registered public accounting firm. Such financial statements were prepared from the books and records of Company and its Subsidiaries, fairly present the consolidated financial position of Company and its Subsidiaries in each case at and as of the dates indicated and the consolidated results of operations and cash flows of Company and its Subsidiaries for the periods indicated, and, except as otherwise set forth in the notes thereto, were prepared in accordance with GAAP consistently applied throughout the periods covered thereby. The books and records of the Company and its Subsidiaries have been, and are being, maintained in all material respects in accordance with GAAP and any other legal and accounting requirements and reflect only actual transactions.

(i) Undisclosed Liabilities. Neither the Company nor any of its Subsidiaries has incurred any debt, liability or obligation of any nature whatsoever (whether accrued, contingent, absolute or otherwise and whether due or to become due) other than liabilities reflected on or reserved against in the consolidated statement of financial condition of the Company as of December 31, 2017, except for (i) liabilities incurred since December 31, 2017 in the ordinary course of business consistent with past practice that, either alone or when combined with all similar liabilities, have not had, and would not reasonably be expected to have, a Material Adverse Effect on the Company and (ii) liabilities incurred for legal, accounting, financial advising fees and out-of-pocket or other expenses or fees in connection with the transactions contemplated by this Agreement.

(j) Absence of Certain Changes or Events.

(i) Except as set forth in the Company’s Disclosure Letter, since December 31, 2017, the Company and its Subsidiaries have conducted their respective businesses only in the ordinary and usual course of such businesses consistent with their past practices and there has not been any event or occurrence that has had, or is reasonably expected to have, a Material Adverse Effect on the Company.

(ii) Except as set forth in the Company’s Disclosure Letter, since December 31, 2017, none of the Company or any of its Subsidiaries have taken any action that would be prohibited by clauses (b)(i), (c), (d), (e), (h), (j), (k), (n), (o) or (p) of Section 4.1 if taken after the date hereof.

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(k) Litigation. There are no material suits, actions or legal, administrative or arbitration proceedings pending or, to the Knowledge of the Company, threatened against or affecting the Company or any of its Subsidiaries or any property or asset of the Company or any of its Subsidiaries that (i) are seeking damages or declaratory relief against the Company or any of its Subsidiaries or (ii) challenge the validity or propriety of the transactions contemplated by this Agreement. There are no judgments, decrees, injunctions, orders or rulings of any Governmental Entity or arbitrator outstanding against the Company or any of its Subsidiaries or the assets of the Company or any of its Subsidiaries (or that, upon consummation of the Merger, would apply to Purchaser or any of its Subsidiaries). Since January 1, 2015, (i) there have been no subpoenas, written demands, or document requests received by the Company or any of its Subsidiaries from any Governmental Entity and (ii) no Governmental Entity has requested that the Company or any of its Subsidiaries enter into a settlement, negotiation or tolling agreement with respect to any matter related to any such subpoena, written demand, or document request.

(l) Absence of Regulatory Actions. Since January 1, 2015, neither the Company nor any of its Subsidiaries has been a party to any cease and desist order, written agreement or memorandum of understanding with, or any commitment letter or similar undertaking to, or has been subject to any action, proceeding, order or directive by any Governmental Entity, or has adopted any board resolutions relating to such matters as are material to the business of the Company or its Subsidiaries at the request of any Governmental Entity, or has been advised by any Governmental Entity that it is contemplating issuing or requesting (or is considering the appropriateness of issuing or requesting) any such action, proceeding, order, directive, written agreement, memorandum of understanding, commitment letter, board resolutions or similar undertaking. To the Knowledge of the Company, there are no material unresolved violations, criticisms or exceptions by any Governmental Entity with respect to any report or statement relating to any examinations of the Company or its Subsidiaries.

(m) Compliance with Laws. To the Knowledge of the Company, the Company and each of its Subsidiaries have complied in all material respects with and are not in material default or violation under any applicable law, statute, order, rule, regulation, policy and/or guideline of any Governmental Entity relating to the Company or any of its Subsidiaries, including without limitation all laws related to data protection or privacy, the Equal Credit Opportunity Act and Regulation B, the Fair Housing Act, the Fair Credit Reporting Act, the Truth in Lending Act and Regulation Z, the Home Mortgage Disclosure Act, the Fair Debt Collection Practices Act, the Electronic Fund Transfer Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the Interagency Policy Statement on Retail Sales of Nondeposit Investment Products, the SAFE Mortgage Licensing Act of 2008, the Real Estate Settlement Procedures Act and Regulation X, and any other law relating to bank secrecy, discriminatory lending, financing or leasing practices, money laundering prevention, Sections 23A and 23B of the Federal Reserve Act, the Sarbanes-Oxley Act, and all agency requirements relating to the origination, sale and servicing of mortgage and consumer loans. The Company and each of its Subsidiaries has all material permits, licenses, certificates of authority, orders and approvals of,

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and has made all filings, applications and registrations with, all Governmental Entities that are required in order to permit it to carry on its business as it is presently conducted. All such permits, licenses, certificates of authority, orders and approvals are in full force and effect, and no suspension or cancellation of any of them is, to the Knowledge of the Company, threatened. Neither the Company nor any of its Subsidiaries has been given notice or been charged with any violation of, any law, ordinance, regulation, order, writ, rule, decree or condition to approval of any Governmental Entity that, individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect on the Company.

(n) Taxes. All federal, state, local and foreign tax returns required to be filed by or on behalf of the Company or any of its Subsidiaries have been timely filed or requests for extensions have been timely filed and any such extension shall have been granted and not have expired, and all such filed returns are complete and accurate in all material respects. All Taxes shown on such returns, all Taxes required to be shown on returns for which extensions have been granted and all other Taxes required to be paid by the Company or any of its Subsidiaries have been paid in full or adequate provision has been made for any such Taxes on the Company’s statement of financial condition (in accordance with GAAP). To the Knowledge of the Company, there is no audit examination, deficiency assessment, tax investigation or refund litigation with respect to any Taxes of the Company or any of its Subsidiaries, and no claim has been made in writing by any authority in a jurisdiction where the Company or any of its Subsidiaries do not file tax returns that the Company or any such Subsidiary is subject to taxation in that jurisdiction. All Taxes, interest, additions and penalties due with respect to completed and settled examinations or concluded litigation relating to the Company or any of its Subsidiaries have been paid in full or adequate provision has been made for any such Taxes on the Company’s statement of financial condition (in accordance with GAAP). The Company and its Subsidiaries have not executed an extension or waiver of any statute of limitations on the assessment or collection of any tax due that is currently in effect. The Company and each of its Subsidiaries has withheld and paid all Taxes required to have been withheld and paid in connection with amounts paid or owing to any employee, independent contractor, creditor, stockholder or other third party, and the Company and each of its Subsidiaries has timely complied with all applicable information reporting requirements under Part III, Subchapter A of Chapter 61 of the IRC and similar applicable state and local information reporting requirements. Neither the Company nor any of its Subsidiaries has made any payments and is not a party to any agreement, and does not maintain any plan, program or arrangement, which could require it to make any payments that would not be fully deductible by reason of Section 162(m) of the IRC.

(o) Agreements.

(i) The Company has previously delivered to Purchaser, and the Company’s Disclosure Letter lists, any contract, arrangement, commitment or understanding (whether written or oral) to which the Company or any of its Subsidiaries is a party or is bound:

(A) (1) with any director, officer or employee of the Company or any of its Subsidiaries the benefits of which are contingent, or the terms of which are materially altered, upon the occurrence of a transaction involving the Company or any of its Subsidiaries of the nature contemplated by this Agreement; (2) with respect to the employment

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of any directors, officers, employees or consultants; or (3) any of the benefits of which will be increased, or the vesting or payment of the benefits of which will be accelerated, by the occurrence of any of the transactions contemplated by this Agreement, or the value of any of the benefits of which will be calculated on the basis of any of the transactions contemplated by this Agreement (including any stock option plan, phantom stock or stock appreciation rights plan, restricted stock plan or stock purchase plan);

(B) that (1) contains a non-compete or client, customer or employee non-solicit requirement or any other provision that restricts the conduct of, or the manner of conducting, any line of business of the Company or any of its Subsidiaries (or, following the consummation of the transactions contemplated hereby, Purchaser or any of its Subsidiaries), (2) obligates the Company or any of its Affiliates (or, following the consummation of the transactions contemplated hereby, Purchaser or any of its Subsidiaries) to conduct business with any third party on an exclusive or preferential basis, or (3) requires referrals of business or requires the Company or any of its Subsidiaries to make available investment opportunities to any person on a priority or exclusive basis;

(C) pursuant to which the Company or any of its Subsidiaries may become obligated to invest in or contribute capital to any entity;

(D) that relates to borrowings of money (or guarantees thereof) by the Company or any of its Subsidiaries in excess of $100,000, other than FHLB borrowings and repurchase agreements with customers entered into in the ordinary course of business;

(E) that grants any right of first refusal, right of first offer or similar right with respect to any material assets, rights or properties of the Company or any of its Subsidiaries;

(F) that limits the payment of dividends by the Company or any of its Subsidiaries;

(G) that relates to the involvement of the Company or any Subsidiary in a joint venture, partnership, limited liability company agreement or other similar agreement or arrangement, or to the formation, creation or operation, management or control of any partnership or joint venture with any third parties;

(H) that relates to an acquisition, divestiture, merger or similar transaction and that contains representations, covenants, indemnities or other obligations (including indemnification, “earn-out” or other contingent obligations) that are still in effect;

(I) that is a lease or license with respect to any property, real or personal, whether as landlord, tenant, licensor or licensee, involving a liability or obligation as obligor in excess of $100,000 per annum;

(J) that is a consulting agreement or data processing, software programming or licensing contract involving the payment of more than $100,000 per annum; or

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(K) that is not of the type described in clauses (A) through (J) above and that involved payments by, or to, the Company or any of its Subsidiaries in the fiscal year ended December 31, 2017, or that could reasonably be expected to involve such payments during the fiscal year ending December 31, 2018, of more than $100,000 (excluding Loans) or the termination of which would require payment by the Company or any of its Subsidiaries in excess of $100,000.

Each contract, arrangement, commitment or understanding of the type described in this Section 3.2(o), whether or not set forth in the Company’s Disclosure Letter, is referred to herein as a “Company Contract,” and neither the Company nor any of its Subsidiaries knows of, or has received notice of, any material violation of the above by any of the other parties thereto.

(ii) Each Company Contract is valid and binding on the Company or one of its Subsidiaries, as applicable, and in full force and effect, except as, either individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect on the Company. The Company and each of its Subsidiaries has in all material respects performed all obligations required to be performed by it under each Company Contract. To the Company’s Knowledge, each third-party counterparty to each Company Contract has in all material respects performed all obligations required to be performed by it under such Company Contract, and no event or condition exists that constitutes or, after notice or lapse of time or both, will constitute, a material default on the part of the Company or any of its Subsidiaries under any such Company Contract.

(iii) Neither the Company nor any of its Subsidiaries is in default under (and no event has occurred that with due notice or lapse of time or both, would constitute a default under) or is in material violation of any provision of any note, bond, indenture, mortgage, deed of trust, loan agreement, lease or other agreement to which it is a party or by which it is bound or to which any of its respective properties or assets is subject and, to the Knowledge of the Company, no other party to any such agreement (excluding any Loan or extension of credit made by the Company or any of its Subsidiaries) is in default in any respect thereunder.

(p) Intellectual Property; Company IT Systems.

(i) The Company and each of its Subsidiaries owns or possesses valid and binding licenses and other rights to use (in the manner and the geographic areas in which they are currently used) without payment all patents, copyrights, trade secrets, trade names, service marks and trademarks material to its business. The Company’s Disclosure Letter sets forth a complete and correct list of all material trademarks, trade names, service marks and copyrights owned by or licensed to the Company or any of its Subsidiaries for use in its business, and all licenses and other agreements relating thereto and all agreements relating to third party intellectual property that the Company or any of its Subsidiaries is licensed or authorized to use in its business, including without limitation any software licenses but excluding any so-called “shrink-wrap” license agreements and other similar computer software licensed in the ordinary course of business and/or otherwise resident on desktop computers (collectively, the “Company Intellectual Property”). With respect to each item of Company Intellectual Property owned by

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the Company or any of its Subsidiaries, the owner possesses all right, title and interest in and to the item, free and clear of any Lien. With respect to each item of Company Intellectual Property that the Company or any of its Subsidiaries is licensed or authorized to use, the license, sublicense or agreement covering such item is legal, valid, binding, enforceable and in full force and effect as to the Company and the Subsidiaries. Neither the Company nor any of its Subsidiaries has received any charge, complaint, claim, demand or notice alleging any interference, infringement, misappropriation or violation with or of any intellectual property rights of a third party (including any claims that the Company or any of its Subsidiaries must license or refrain from using any intellectual property rights of a third party). To the Knowledge of the Company, neither the Company nor any of its Subsidiaries has interfered with, infringed upon, misappropriated or otherwise come into conflict with any intellectual property rights of third parties and no third party has interfered with, infringed upon, misappropriated or otherwise come into conflict with any intellectual property rights of the Company or any of its Subsidiaries.

(ii) To the Company’s Knowledge, all information technology and computer systems (including software, information technology and telecommunication hardware and other equipment) relating to the transmission, storage, maintenance, organization, presentation, generation, processing or analysis of data and information, whether or not in electronic format, used in or necessary to the conduct of the business of the Company or INB (collectively, the “Company IT Systems”) have been properly maintained by technically competent personnel, in accordance with standards set by the manufacturers or otherwise in accordance with standards in the industry, to ensure proper operation, monitoring and use. The Company IT Systems are in good working condition to effectively perform all information technology operations necessary to conduct the Company’s consolidated business as currently conducted. Neither the Company nor INB has experienced within the past two years any material disruption to, or material interruption in, the conduct of its business attributable to a defect, bug, breakdown or other failure or deficiency of the Company IT Systems. No Person has gained unauthorized access to any of the Company IT Systems that has had, or is reasonably expected to have, a Material Adverse Effect on the Company. The Company and INB have taken reasonable measures to provide for the back-up and recovery of the data and information necessary to the conduct of their businesses without material disruption to, or material interruption in, the conduct of their respective businesses. The Company and its Subsidiaries are in compliance in all material respects with all data protection and privacy laws and regulations as well as their own policies relating to data protection and the privacy and security of personal data and the non-public personal information of their respective customers and employees, except for immaterial failures to comply or immaterial violations.

(q) Labor Matters.

(i) The Company and its Subsidiaries are in material compliance with all applicable laws respecting employment, retention of independent contractors, employment practices, terms and conditions of employment, and wages and hours. Neither the Company nor any of its Subsidiaries is or has ever been a party to, or is or has ever been bound by, any collective bargaining agreement, contract or other agreement or understanding with a labor union or labor organization with respect to its employees, nor is the Company or any of its Subsidiaries

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the subject of any proceeding asserting that it has committed an unfair labor practice or seeking to compel it or any such Subsidiary to bargain with any labor organization as to wages and conditions of employment nor, to the Knowledge of the Company, has any such proceeding been threatened, nor is there any strike, other labor dispute or organizational effort involving the Company or any of its Subsidiaries pending or, to the Knowledge of the Company, threatened.

(ii) The Company’s Disclosure Letter identifies (A) all present employees (including any leased or temporary employees) of the Company and its Subsidiaries and any consultants or independent contractors providing services to the Company or any of its Subsidiaries; (B) each employee’s, consultant’s or independent contractor’s date of hire and current rate of compensation; and (C) each employee’s accrued vacation, sick leave or personal leave if applicable. The Company’s Disclosure Letter also names any employee who is absent from work due to a leave of absence (including, but not limited to, in accordance with the requirements of the Family and Medical Leave Act or the Uniformed Services Employment and Reemployment Rights Act) or a work-related injury, or who is receiving workers’ compensation or disability compensation. There are no unpaid wages, bonuses or commissions owed to any employee (other than those not yet due).

(r) Employee Benefit Plans.

(i) The Company’s Disclosure Letter lists all Company Benefit Plans. For purposes of this Agreement, “Company Benefit Plans” mean all employee benefit plans (as defined in Section 3(3) of ERISA), whether or not subject to ERISA, whether funded or unfunded, and all pension, benefit, retirement, bonus, stock option, stock purchase, restricted stock, stock-based, performance award, phantom equity, incentive, deferred compensation, retiree medical or life insurance, supplemental retirement, severance, retention, employment, consulting, termination, change in control, salary continuation, accrued leave, sick leave, vacation, paid time off, health, medical, disability, life, accidental death and dismemberment, insurance, welfare, fringe benefit and other similar plans, programs, policies, practices or arrangements or other contracts or agreements (and any amendments thereto) with respect to which the Company or any Subsidiary or any trade or business of the Company or any of its Subsidiaries, whether or not incorporated, all of which together with the Company would be deemed a “single employer” within the meaning of Section 4001 of ERISA (a “Company ERISA Affiliate”), is a party or has any current or future obligation or that are sponsored, maintained, contributed to or required to be contributed to by the Company or any of its Subsidiaries or any Company ERISA Affiliate for the benefit of any current or former employee, officer, director, consultant or independent contractor (or any spouse or dependent of such individual) of the Company or any of its Subsidiaries or any Company ERISA Affiliate.

(ii) The Company has heretofore made available to Purchaser true, correct and complete copies of the following documents with respect to each of the Company Benefit Plans, to the extent applicable, (i) all plans and trust agreements, (ii) all summary plan descriptions, amendments, modifications or material supplements to any Company Benefit Plan, (iii) where any Company Benefit Plan has not been reduced to writing, a written summary of all the material plan terms, (iv) the annual report (Form 5500), if any, filed with the IRS for the last three (3) plan years and summary annual reports, with schedules and financial statements

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attached, (v) the most recently received IRS determination letter, if any, relating to any Company Benefit Plan, (vi) the most recently prepared actuarial report for each Company Benefit Plan (if applicable) for each of the last three (3) years and (vii) copies of material notices, letters or other correspondence with the IRS, U.S. Department of Labor (the “DOL”) or Pension Benefit Guarantee Corporation (the “PBGC”).

(iii) Each Company Benefit Plan has been established, operated and administered in all material respects in accordance with its terms and the requirements of all applicable laws, including ERISA and the IRC. Neither the Company nor any of its Subsidiaries has taken any action to take corrective action or made a filing under any voluntary correction program of the IRS, the DOL or any other Governmental Entity with respect to any Company Benefit Plan, and neither the Company nor any of its Subsidiaries has any Knowledge of any plan defect that would qualify for correction under any such program.

(iv) The Company’s Disclosure Letter identifies each Company Benefit Plan that is intended to be qualified under Section 401(a) of the IRC (the “Company Qualified Plans”). The IRS has issued a favorable determination letter with respect to each Company Qualified Plan and the related trust, which letter has not been revoked (nor has revocation been threatened), and, to the Knowledge of the Company, there are no existing circumstances and no events have occurred that could adversely affect the qualified status of any Company Qualified Plan or the exempt status of the related trust or increase the costs relating thereto. No trust funding any Company Benefit Plan is intended to meet the requirements of Section 501(c)(9) of the IRC.

(v) Each Company Benefit Plan that is subject to Section 409A of the IRC has been administered and documented in compliance with the requirements of Section 409A of the IRC, except where any non-compliance has not and cannot reasonably be expected to result in material liability to the Company or any of its Subsidiaries or any employee of the Company or any of its Subsidiaries.

(vi) With respect to each Company Benefit Plan that is subject to Title IV or Section 302 of ERISA or Sections 412, 430 or 4971 of the IRC: (i) no such plan is in “at-risk” status for purposes of Section 430 of the IRC, (ii) the present value of accrued benefits under such Company Benefit Plan, based upon the actuarial assumptions used for funding purposes in the most recent actuarial report prepared by such Company Benefit Plan’s actuary with respect to such Company Benefit Plan, did not, as of its latest valuation date, exceed the then current fair market value of the assets of such Company Benefit Plan allocable to such accrued benefits, (iii) no reportable event within the meaning of Section 4043(c) of ERISA for which the 30-day notice requirement has not been waived has occurred, (iv) all premiums to the PBGC have been timely paid in full, (v) no liability (other than for premiums to the PBGC) under Title IV of ERISA has been or is expected to be incurred by the Company or any of its Subsidiaries, and (vi) the PBGC has not instituted proceedings to terminate any such Company Benefit Plan.

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(vii) None of the Company, its Subsidiaries nor any Company ERISA Affiliate has, at any time during the last six years, contributed to or been obligated to contribute to any plan that is a “multiemployer plan” within the meaning of Section 4001(a)(3) of ERISA (a “Multiemployer Plan”) or a plan that has two or more contributing sponsors at least two of whom are not under common control, within the meaning of Section 4063 of ERISA (a “Multiple Employer Plan”), and none of the Company and its Subsidiaries nor any Company ERISA Affiliate has incurred any liability to a Multiemployer Plan or Multiple Employer Plan as a result of a complete or partial withdrawal (as those terms are defined in Part 1 of Subtitle E of Title IV of ERISA) from a Multiemployer Plan or Multiple Employer Plan.

(viii) Neither the Company nor any of its Subsidiaries sponsors has sponsored or has any obligation with respect to any employee benefit plan that provides for any post-employment or post-retirement health or medical or life insurance benefits for retired, former or current employees or beneficiaries or dependents thereof, except as required by Section 4980B of the IRC.

(ix) All contributions required to be made to any Company Benefit Plan by applicable law or by any plan document or other contractual undertaking, and all premiums due or payable with respect to insurance policies funding any Company Benefit Plan, for any period through the date hereof, have been timely made or paid in full or, to the extent not required to be made or paid on or before the date hereof, have been fully reflected on the books and records of the Company.

(x) There are no pending or threatened claims (other than claims for benefits in the ordinary course), lawsuits or arbitrations that have been asserted or instituted, and, to the Company’s Knowledge, no set of circumstances exists that may reasonably be expected to give rise to a claim or lawsuit, against the Company Benefit Plans, any fiduciaries thereof with respect to their duties to the Company Benefit Plans or the assets of any of the trusts under any of the Company Benefit Plans, that could reasonably be expected to result in any material liability of the Company or any of its Subsidiaries to the PBGC, the IRS, the DOL, any Multiemployer Plan, a Multiple Employer Plan, any participant in any Company Benefit Plan, or any other party.

(xi) To the Knowledge of the Company, none of the Company and its Subsidiaries nor any Company ERISA Affiliate nor any other person, including any fiduciary, has engaged in any “prohibited transaction” (as defined in Section 4975 of the IRC or Section 406 of ERISA) that could subject any of the Company Benefit Plans or their related trusts, the Company, any of its Subsidiaries, any Company ERISA Affiliate or any person that the Company or any of its Subsidiaries has an obligation to indemnify, to any material tax or penalty imposed under Section 4975 of the IRC or Section 502 of ERISA.

(xii) Neither the execution and delivery of this Agreement nor the consummation of the transactions contemplated hereby will (either alone or in conjunction with any other event) result in, cause the vesting, exercisability or delivery of, or increase in the amount or value of, any payment, compensation (including stock or stock-based), right or other benefit to any employee, officer, director, independent contractor, consultant or other service provider of the Company or any of its Subsidiaries, or result in any limitation on the right of the Company or any of its Subsidiaries to amend, merge, terminate or receive a reversion of assets

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from any Company Benefit Plan or related trust. Without limiting the generality of the foregoing, no amount paid or payable (whether in cash, in property, or in the form of benefits) by the Company or any of its Subsidiaries in connection with the transactions contemplated hereby (either solely as a result thereof or as a result of such transactions in conjunction with any other event) will be an “excess parachute payment” within the meaning of Section 280G of the IRC. Neither the Company nor any of its Subsidiaries maintains or contributes to a rabbi trust or similar funding vehicle, and the transactions contemplated by this Agreement will not cause or require the Company or any of its Affiliates to establish or make any contribution to a rabbi trust or similar funding vehicle.

(xiii) No Company Benefit Plan provides for the gross-up or reimbursement of Taxes under Section 409A or 4999 of the IRC, or otherwise. The Company’s Disclosure Letter includes true, correct and complete copies of Section 280G calculations (whether or not final) with respect to any disqualified individual in connection with the transactions contemplated hereby.

(xiv) There are no pending or, to the Company’s Knowledge, threatened material labor grievances or material unfair labor practice claims or charges against the Company or any of its Subsidiaries, or any strikes or other material labor disputes against the Company or any of its Subsidiaries. Neither the Company nor any of its Subsidiaries are party to or bound by any collective bargaining or similar agreement with any labor organization, or work rules or practices agreed to with any labor organization or employee association applicable to employees of the Company or any of its Subsidiaries and, to the Knowledge of the Company, there are no organizing efforts by any union or other group seeking to represent any employees of the Company or any of its Subsidiaries and no employees of the Company or any of its Subsidiaries are represented by any labor organization.

(s) Properties.

(i) A list of all real property owned or leased by the Company or a Subsidiary of the Company is set forth in the Company’s Disclosure Letter. The Company and each of its Subsidiaries has good and marketable title to all real property owned by it (including any property acquired in a judicial foreclosure proceeding or by way of a deed in lieu of foreclosure or similar transfer), in each case free and clear of any Liens except (i) liens for Taxes not yet due and payable and (ii) such easements, restrictions and encumbrances, if any, as are not material in character, amount or extent, and do not materially detract from the value, or materially interfere with the present use of the properties subject thereto or affected thereby. Each lease pursuant to which the Company or any of its Subsidiaries as lessee, leases real or personal property is valid and in full force and effect as to the Company and the Subsidiaries and neither the Company nor any of its Subsidiaries, nor, to the Company’s Knowledge, any other party to any such lease, is in default or in violation of any material provisions of any such lease. The Company has previously delivered to Purchaser a complete and correct copy of each such lease. All real property owned or leased by the Company or any of its Subsidiaries are in all material respects in a good state of maintenance and repair (normal wear and tear excepted), conform in all material respects with all applicable ordinances, regulations and zoning laws and are considered by the Company to be adequate for the current business of the Company and its

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Subsidiaries. To the Knowledge of the Company, none of the buildings, structures or other improvements located on any real property owned or leased by the Company or any of its Subsidiaries encroaches upon or over any adjoining parcel or real estate or any easement or right-of-way.

(ii) The Company and each of its Subsidiaries has good and marketable title to all tangible personal property owned by it, free and clear of all Liens except such Liens, if any, that are not material in character, amount or extent, and that do not materially detract from the value, or materially interfere with the present use of the properties subject thereto or affected thereby. With respect to personal property used in the business of the Company and its Subsidiaries that is leased rather than owned, neither the Company nor any of its Subsidiaries is in default under the terms of any such lease.

(t) Fairness Opinion. The board of directors of Company has received the opinion (which, if initially rendered verbally, has been or will be confirmed by a written opinion, dated the same date) of D.A. Davidson & Co. (“D.A. Davidson”) to the effect that, as of the date of such opinion and subject to the assumptions, limitations and qualifications set forth therein, the Exchange Ratio in the Merger is fair, from a financial point of view, to the holders of Company Common Stock.

(u) Fees. Other than for financial advisory services performed for the Company by D.A. Davidson pursuant to an agreement executed March 12, 2018, a true and complete copy of which is included in the Company’s Disclosure Letter, neither the Company nor any of its Subsidiaries, nor any of their respective officers, directors, employees or agents, has employed any broker or finder or incurred any liability for any financial advisory fees, brokerage fees, commissions or finder’s fees, and no broker or finder has acted directly or indirectly for the Company or any of its Subsidiaries in connection with this Agreement or the transactions contemplated hereby.

(v) Environmental Matters.

(i) Each of the Company’s and its Subsidiaries’ properties, the Participation Facilities, and, to the Knowledge of the Company, the Loan Properties are, and have been during the period of the Company’s or its Subsidiaries’ ownership or operation thereof, in material compliance with all Environmental Laws.

(ii) There is no suit, claim, action, demand, executive or administrative order, directive, investigation or proceeding pending or, to the Knowledge of the Company, threatened, before any court or Governmental Entity against the Company or any of its Subsidiaries or any Participation Facility (A) for alleged noncompliance (including by any predecessor) with, or liability under, any Environmental Law or (B) relating to the presence of or release into the environment of any Hazardous Material, whether or not occurring at or on a site owned, leased or operated by the Company or any of its Subsidiaries or any Participation Facility.

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(iii) There is no suit, claim, action, demand, executive or administrative order, directive, investigation or proceeding pending or threatened before any court or, to the Knowledge of the Company, Governmental Entity relating to or against any Loan Property (or the Company or any of its Subsidiaries in respect of such Loan Property) (A) relating to alleged noncompliance (including by any predecessor) with, or liability under, any Environmental Law or (B) relating to the presence of or release into the environment of any Hazardous Material, whether or not occurring at a Loan Property.

(iv) Neither the Company nor any of its Subsidiaries has received in writing any notice, demand letter, executive or administrative order, directive or request for information from any Governmental Entity or any third party indicating that it may be in violation of, or liable under, any Environmental Law.

(v) To the Knowledge of the Company, there are no underground storage tanks at any properties owned or operated by the Company or any of its Subsidiaries or any Participation Facility. Neither the Company nor any of its Subsidiaries nor, to the Knowledge of the Company, any other person or entity, has closed or removed any underground storage tanks from any properties owned or operated by the Company or any of its Subsidiaries or any Participation Facility.

(vi) During the period of (A) the Company’s or its Subsidiary’s ownership or operation of any of their respective current properties or (B) the Company’s or its Subsidiary’s participation in the management of any Participation Facility, to the Knowledge of the Company, there has been no release of Hazardous Materials in, on, under or affecting such properties except for releases of Hazardous Materials in quantities below the level at which they were regulated under any Environmental Law in effect at the time of such release. To the Knowledge of the Company, prior to the period of (A) the Company’s or its Subsidiary’s ownership or operation of any of their respective current properties or (B) the Company’s or its Subsidiary’s participation in the management of any Participation Facility, there was no contamination by or release of Hazardous Material in, on, under or affecting such properties except for releases of Hazardous Materials in quantities below the level at which they were regulated under any Environmental Law in effect at the time of such release.

(w) Loan Matters.

(i) All Loans held by the Company or any of its Subsidiaries were made in all material respects for good, valuable and adequate consideration in the ordinary course of the business, in accordance in all material respects with sound banking practices and, to the Knowledge of the Company, the Loans are not subject to any defenses, setoffs or counterclaims, including without limitation any such as are afforded by usury or truth in lending laws, except as may be provided by bankruptcy, insolvency or similar laws or by general principles of equity. The notes or other evidences of indebtedness evidencing such Loans and all forms of pledges, mortgages and other collateral documents and security agreements are, in all material respects, enforceable and valid.

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(ii) Neither the terms of any Loan, any of the documentation for any Loan, the manner in which any Loans have been administered and serviced, nor the Company’s practices of approving or rejecting Loan applications, violate in any material respect any federal, state, or local law, rule or regulation applicable thereto, including, without limitation, the Truth In Lending Act, Regulations O and Z of the Federal Reserve, the CRA, the Equal Credit Opportunity Act, and any state laws, rules and regulations relating to consumer protection, installment sales and usury.

(iii) The allowance for loan losses reflected in the Company’s audited statement of financial condition at December 31, 2017 was, and the allowance for loan losses shown on the statements of financial condition in the Company Reports for periods ending after such date, in the opinion of management, were, or will be, adequate, as of the dates thereof, under GAAP.

(iv) None of the agreements pursuant to which the Company or any of its Subsidiaries has sold Loans or pools of Loans or participations in Loans or pools of Loans contains any obligation to repurchase such Loans or interests therein solely on account of a payment default by the obligor on any such Loan.

(v) (A) The Company’s Disclosure Letter sets forth a list of all Loans as of the date hereof by the Company or INB to any directors, executive officers and principal stockholders (as such terms are defined in Regulation O of the Federal Reserve (12 C.F.R. Part 215)) of the Company or any of its Subsidiaries, (B) there are no Loans to any employee, officer, director or Affiliate thereof on which the borrower is paying a rate other than that reflected in the note or other relevant credit or security agreement or on which the borrower is paying a rate that was or is not in compliance with Regulation O and (C) all such Loans are and were originated in compliance in all material respects with all applicable laws.

(vi) The Company’s Disclosure Letter sets forth a listing, as of March 31, 2018, by account, of: (A) each borrower, customer or other party that has notified INB during the past twelve (12) months of, or has asserted against the Company or INB, in each case in writing, any “lender liability” or similar claim, and, to the Knowledge of the Company or INB, each borrower, customer or other party that has given the Company or INB any oral notification of, or orally asserted to or against Company or INB, any such claim; and (B) all Loans (1) that are contractually past due ninety (90) days or more in the payment of principal and/or interest, (2) that are on non-accrual status, (3) that are classified as “Pass 5,” “Special Mention,” “Substandard,” “Doubtful,” “Loss” or words of similar import, (4) that are considered troubled debt restructurings or where the interest rate terms have been reduced and/or the maturity dates have been extended subsequent to the origination of the Loan due to concerns regarding the borrower’s ability to pay in accordance with the Loan’s original terms and (5) where a specific reserve allocation exists in connection therewith; and (C) all other assets classified by the Company or INB as real estate acquired through foreclosure or in lieu of foreclosure, including in-substance foreclosures, and all other assets currently held that were acquired through foreclosure or in lieu of foreclosure.

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(x) Anti-takeover Provisions Inapplicable. The Company and its Subsidiaries have taken all actions required to exempt Purchaser, the Agreement, the Plan of Bank Merger, the Merger and the Bank Merger from any provisions of an anti-takeover nature contained in their organizational documents, and the provisions of any federal or state “anti-takeover,” “fair price,” “moratorium,” “control share acquisition” or similar laws or regulations.

(y) Material Interests of Certain Persons. Except for deposit and loan relationships entered into in the ordinary course of business, no current or former officer or director of the Company, or any family member or Affiliate of any such Person, has any material interest, directly or indirectly, in any contract or property (real or personal), tangible or intangible, used in or pertaining to the business of the Company or any of its Subsidiaries.

(z) Insurance. In the opinion of management, the Company and its Subsidiaries are presently insured for amounts deemed reasonable by management against such risks as companies engaged in a similar business, including engaging in the transactions contemplated by this Agreement, would, in accordance with good business practice, customarily be insured. The Company’s Disclosure Letter contains a list of all policies of insurance carried and owned by the Company or any of the Company’s Subsidiaries showing the name of the insurance company and agent, the nature of the coverage, the policy limit, the annual premiums and the expiration date. All of the insurance policies and bonds maintained by the Company and its Subsidiaries are in full force and effect, the Company and its Subsidiaries are not in default thereunder, all premiums and other payments due under any such policy have been paid. There are presently no material claims pending under such policies of insurance and no notices have been given by the Company or any of its Subsidiaries under such policies (other than with respect to health or disability insurance).

(aa) Investment Securities; Derivatives.

(i) Except for restrictions that exist for securities that are classified as “held to maturity,” none of the investment securities held by the Company or any of its Subsidiaries, including but not limited to FHLB stock, is subject to any restriction (contractual or statutory) that would materially impair the ability of the entity holding such investment freely to dispose of such investment at any time.

(ii) Neither the Company nor any of its Subsidiaries is a party to or has agreed to enter into an exchange-traded or over-the-counter equity, interest rate, foreign exchange or other swap, forward, future, option, cap, floor or collar or any other contract that is a derivative contract (including various combinations thereof) or owns securities that (A) are referred to generically as “structured notes,” “high risk mortgage derivatives,” “capped floating rate notes” or “capped floating rate mortgage derivatives” or (B) are likely to have changes in value as a result of interest or exchange rate changes that materially exceed normal changes in value attributable to interest or exchange rate changes.

(bb) Indemnification. Except as provided in the Articles of Incorporation or bylaws of the Company and the similar organizational documents of its Subsidiaries, and in employment agreements, change in control agreements and other agreements related to

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employment or service as a director, officer or employee, neither the Company nor any of its Subsidiaries is a party to any agreement that provides for the indemnification of any of its present or former directors, officers, employees or stockholders, or other persons who serve or served as a director, officer or employee of another corporation, partnership or other enterprise at the request of the Company and, to the Knowledge of the Company, there are no claims for which any such Person would be entitled to indemnification under the Articles of Incorporation or bylaws of the Company or the similar organizational documents of any of its Subsidiaries, under any applicable law or regulation or under any such employment-related agreement.

(cc) Corporate Documents and Records. The Company has previously provided a complete and correct copy of the Articles of Incorporation, bylaws and similar organizational documents of the Company and each of the Company’s Subsidiaries, as in effect as of the date of this Agreement. Neither the Company nor any of the Company’s Subsidiaries is in violation of its Articles of Incorporation, bylaws or similar organizational documents. The minute books of the Company and each of the Company’s Subsidiaries constitute a complete and correct record of all actions taken by their respective boards of directors (and each committee thereof) and their stockholders.

(dd) CRA, Anti-Money Laundering, OFAC and Customer Information Security. INB has received a rating of “Satisfactory” or better in its most recent examination or interim review with respect to the CRA. The Company does not have Knowledge of any facts or circumstances that would cause INB or any other Subsidiary of the Company: (i) to be deemed not to be in satisfactory compliance in any material respect with the CRA, and the regulations promulgated thereunder, or to be assigned a rating for CRA purposes by federal bank regulators of lower than “Satisfactory”; or (ii) to be deemed to be operating in violation in any material respect of the Bank Secrecy Act, the USA PATRIOT Act, any order issued with respect to anti-money laundering by the U.S. Department of the Treasury’s Office of Foreign Assets Control, or any other applicable anti-money laundering statute, rule or regulation; or (iii) to be deemed not to be in satisfactory compliance in any material respect with the applicable privacy of customer information requirements contained in any federal and state privacy laws and regulations, including without limitation, in Title V of the Gramm-Leach-Bliley Act of 1999 and the regulations promulgated thereunder, as well as the provisions of the information security program adopted by INB. To the Knowledge of the Company, no non-public customer information has been disclosed to or accessed by an unauthorized third party in a manner that would cause either the Company or any of its Subsidiaries to undertake any remedial action. The Board of Directors of INB (or where appropriate of any other Subsidiary of the Company) has adopted, and INB (or such other Subsidiary of the Company) has implemented, an anti-money laundering program that contains adequate and appropriate customer identification verification procedures that comply with Section 326 of the USA PATRIOT Act and such anti-money laundering program meets the requirements in all material respects of Section 352 of the USA PATRIOT Act and the regulations thereunder, and INB (or such other Subsidiary of the Company) has complied in all material respects with any requirements to file reports and other necessary documents as required by the USA PATRIOT Act and the regulations thereunder.

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(ee) Internal Controls. The Company and its Subsidiaries have devised and maintain a system of internal control over financial reporting sufficient to provide reasonable assurances regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP and to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets, and (iii) access to assets is permitted only in accordance with management’s general or specific authorization. There are no significant deficiencies or material weaknesses in the design or operation of internal controls over financial reporting that are reasonably likely to adversely affect in any material respect the Company’s ability to record, process, summarize and report financial information. To the Knowledge of the Company, there has occurred no fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal controls over financial reporting.

(ff) Tax Treatment of the Merger. The Company has no Knowledge of any fact or circumstance relating to it that would prevent the transactions contemplated by this Agreement from qualifying as a reorganization under Section 368(a) of the IRC.

(gg) Related Party Transactions. The Company’s Disclosure Letter lists all instances in which the Company or any Company Subsidiary is a party to any transaction (including any loan or other credit accommodation) with any Affiliate of the Company or any Company Subsidiary where the amount exceeds $120,000. All such transactions involving indebtedness (a) were made in the ordinary course of business, (b) were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other persons, and (c) did not involve more than the normal risk of collectability or present other unfavorable features. No loan or credit accommodation to any Affiliate of the Company or any Company Subsidiary is presently in default or, during the three-year period prior to the date of this Agreement, has been in default or has been restructured, modified or extended. Neither the Company nor any Company Subsidiary has been notified that principal or interest with respect to any such loan or other credit accommodation will not be paid when due or that the loan grade classification accorded such loan or credit accommodation is inappropriate.

(hh) Trust Accounts. The Company and each Subsidiary has properly administered all accounts for which it acts as a fiduciary in all material respects, including but not limited to accounts for which it serves as trustee, agent, custodian, personal representative, guardian, conservator or investment advisor, in accordance with the terms of the governing documents and applicable laws and regulations. Neither the Company nor any other Subsidiary, nor has any of their respective directors, officers or employees, committed any breach of trust with respect to any such fiduciary account and the records for each such fiduciary account.

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(ii) No Other Representations or Warranties.

(i) Except for the representations and warranties made by the Company in this Section 3.2, neither the Company nor any other Person makes any express or implied representation or warranty with respect to the Company, its Subsidiaries, or their respective businesses, operations, assets, liabilities, conditions (financial or otherwise) or prospects, and the Company hereby disclaims any such other representations or warranties. In particular, without limiting the foregoing disclaimer, neither the Company nor any other Person makes or has made any representation or warranty to Purchaser or any of its Affiliates or representatives with respect to (A) any financial projection, forecast, estimate, budget or prospective information relating to the Company, any of its Subsidiaries or their respective businesses, or (B) except for the representations and warranties made by the Company in this Section 3.2, any oral or written information presented to Purchaser or any of its Affiliates or representatives in the course of their due diligence investigation of the Company, the negotiation of this Agreement or in the course of the transactions contemplated hereby.

(ii) The Company hereby acknowledges and agrees that neither Purchaser nor any other Person has made or is making any express or implied representation or warranty other than those contained in Section 3.3.

3.3 Representations and Warranties of Purchaser. Except (i) as disclosed in Purchaser’s Disclosure Letter, and (ii) for information and documents commonly known as “confidential supervisory information” that is prohibited from disclosure (and as to which nothing in this Agreement shall require disclosure), the Purchaser represents and warrants to the Company that:

(a) Organization and Qualification. Purchaser is a corporation duly organized, validly existing and in good standing under the laws of the State of Montana and is registered with the Federal Reserve as a bank holding company. Purchaser has all requisite corporate power and authority to own, lease and operate its properties and to conduct the business currently being conducted by it. Purchaser is duly qualified or licensed as a foreign corporation to transact business and is in good standing in each jurisdiction in which the character of the properties owned or leased by it or the nature of the business conducted by it makes such qualification or licensing necessary, except where the failure to be so qualified or licensed and in good standing would not have a Material Adverse Effect on Purchaser. Purchaser engages only in activities, and holds properties only of the types, permitted to financial holding companies by the Bank Holding Company Act of 1956, as amended, and the rules, regulations and interpretations promulgated thereunder.

(b) Subsidiaries.

(i) Purchaser owns, directly or indirectly, all of the issued and outstanding shares of capital stock or other equity interests of each of its Subsidiaries free and clear of any Liens. There are no contracts, commitments, agreements or understandings relating to Purchaser’s right to vote or dispose of any equity securities of its Subsidiaries. Purchaser’s ownership interest in each of its Subsidiaries is in compliance with all applicable laws, rules and regulations relating to equity investments by bank holding companies or Montana-chartered savings banks.

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(ii) Each of Purchaser’s Subsidiaries is a corporation duly organized and validly existing under the laws of its jurisdiction of incorporation, has all requisite corporate power and authority to own, lease and operate its properties and to conduct the business currently being conducted by it and is duly qualified or licensed as a foreign corporation to transact business and is in good standing in each jurisdiction in which the character of the properties owned or leased by it or the nature of the business conducted by it makes such qualification or licensing necessary, except where the failure to be so qualified or licensed and in good standing would not have a Material Adverse Effect on the Purchaser.

(iii) The outstanding shares of capital stock of each Subsidiary have been validly authorized and are validly issued, fully paid and nonassessable. No shares of capital stock of any Subsidiary of Purchaser are or may be required to be issued by virtue of any options, warrants or other rights, no securities exist that are convertible into or exchangeable for shares of such capital stock or any other debt or equity security of any Subsidiary, and there are no contracts, commitments, agreements or understandings of any kind for the issuance of additional shares of capital stock or other debt or equity security of any Subsidiary or options, warrants or other rights with respect to such securities.

(iv) First Interstate Bank is a Montana-chartered commercial bank. No Subsidiary of Purchaser other than First Interstate Bank is an “insured depository institution” as defined in the Federal Deposit Insurance Act, as amended, and the applicable regulations thereunder. First Interstate Bank’s deposits are insured by the FDIC through the Deposit Insurance Fund to the fullest extent permitted by law. First Interstate Bank is a member in good standing of the FHLB and owns the requisite amount of stock therein.

(c) Capital Structure.

(i) The authorized capital stock of Purchaser consists of 100,000,000 shares of Purchaser Common Stock, 100,000,000 shares of Class B common stock, no par value per share, and 100,000 shares of preferred stock, no par value per share.

(ii) As of the date of this Agreement,

(A) 34,074,993 shares of Purchaser Common Stock are issued and outstanding, all of which are validly issued, fully paid and nonassessable and were issued in full compliance with all applicable laws and not in violation of any preemptive rights;

(B) 22,629,003 shares of Class B common stock of Purchaser are issued and outstanding, all of which are validly issued, fully paid and nonassessable and were issued in full compliance with all applicable laws and not in violation of any preemptive rights;

(C) no shares of Purchaser preferred stock are issued and outstanding; and

(D) 1,273,959 shares of Purchaser Common Stock are reserved for issuance pursuant to outstanding grants or awards under Purchaser’s stock-based benefit plans.

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(iii) The shares of Purchaser Common Stock to be issued in exchange for shares of Company Common Stock upon consummation of the Merger in accordance with this Agreement have been duly authorized and when issued in accordance with the terms of this Agreement, will be validly issued, fully paid and nonassessable and subject to no preemptive rights.

(iv) No bonds, debentures, notes or other indebtedness having the right to vote on any matters on which stockholders of Purchaser may vote are issued or outstanding.

(v) Except as set forth in this Section 3.3(c), as of the date of this Agreement, (A) no shares of capital stock or other voting securities of Purchaser are issued, reserved for issuance or outstanding, and (B) other than shares of Class B common stock options to purchase shares of Purchaser Common Stock, neither the Company nor any of its Subsidiaries has or is bound by any outstanding subscriptions, options, warrants, calls, rights, convertible securities, commitments or agreements of any character obligating Purchaser or any of its Subsidiaries to issue, deliver or sell, or cause to be issued, delivered or sold, any additional shares of capital stock of Purchaser (including any rights plan or agreement) or obligating Purchaser or any of its Subsidiaries to grant, extend or enter into any such option, warrant, call, right, convertible security, commitment or agreement. Neither Purchaser nor any of its Subsidiaries has or is bound by any rights of any character relating to the purchase, sale or issuance or voting of, or right to receive dividends or other distributions on shares of Purchaser Common Stock, or any other security of Purchaser or a Subsidiary of Purchaser or any securities representing the right to vote, purchase or otherwise receive any shares of Purchaser Common Stock or any other security of Purchaser or a Subsidiary of Purchaser. Other than as stated herein, there are no outstanding securities or instruments that contain any redemption or similar provisions, and there are no outstanding contractual obligations of Purchaser or any of its Subsidiaries to repurchase, redeem or otherwise acquire any shares of capital stock of Purchaser or any of its Subsidiaries.

(d) Authority. Purchaser has all requisite corporate power and authority to enter into this Agreement, to perform its obligations hereunder and, subject to the consents, approvals and filings set forth in Section 3.3(f), to consummate the transactions contemplated by this Agreement. The execution and delivery of this Agreement and the consummation of the transactions contemplated by this Agreement have been duly authorized by all necessary corporate actions on the part of Purchaser’s Board of Directors, and no other corporate proceedings on the part of Purchaser are necessary to authorize this Agreement or to consummate the transactions contemplated by this Agreement. Purchaser’s Board of Directors has determined that this Agreement is advisable and has unanimously adopted a resolution to the foregoing effect. This Agreement has been duly and validly executed and delivered by Purchaser and constitutes a valid and binding obligation of Purchaser, enforceable against Purchaser in accordance with its terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights and remedies generally and to general principles of equity, whether applied in a court of law or a court of equity.

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(e) No Violations. The execution, delivery and performance of this Agreement by Purchaser do not, and the consummation of the transactions contemplated by this Agreement will not, (i) assuming that the consents, approvals and filings referred to in
Section 3.3(f) have been obtained and the applicable waiting periods have expired, violate any law, rule or regulation or any judgment, decree, order, governmental permit or license to which Purchaser or any of its Subsidiaries (or any of their respective properties) is subject, (ii) violate the articles of incorporation or bylaws of Purchaser or the similar organizational documents of any of its Subsidiaries or (iii) constitute a breach or violation of, or a default under (or an event that, with due notice or lapse of time or both, would constitute a default under), or result in the termination of, accelerate the performance required by, or result in the creation of any Lien upon any of the properties or assets of Purchaser or any of its Subsidiaries under, any of the terms, conditions or provisions of any note, bond, indenture, deed of trust, loan agreement or other agreement, instrument or obligation to which Purchaser or any of its Subsidiaries is a party, or to which any of their respective properties or assets may be subject.

(f) Consents and Approvals. Except for (i) filings of applications and notices with, receipt of approvals or no objections from, and the expiration of related waiting periods required by, federal and state banking authorities, including filings and notices with the Federal Reserve, the MDOB and the WDFI, (ii) the filing with the SEC of a Proxy Statement-Prospectus in definitive form relating to the meeting of the Company’s stockholders to be held in connection with this Agreement and the transactions contemplated hereby and of the Registration Statement in which such proxy statement will be included as a prospectus, and declaration of effectiveness of the Registration Statement, (iii) the filing of the Articles of Merger with the Montana Secretary pursuant to the MBCA and the Washington Secretary pursuant to the WBCA, the filing of a certificate for the Bank Merger with the MDOB and the filing of a notice for the Bank Merger with the WDFI, (iv) filing with The Nasdaq Stock Market LLC of a notification or application of the listing of the shares of Purchaser Common Stock to be issued in the Merger, and (v) such filings and approvals as are required to be made or obtained under the securities or “Blue Sky” laws of various states in connection with the issuance of shares of Purchaser Common Stock pursuant to this Agreement, no consents or approvals of, or filings or registrations with, any Governmental Entity or any third party are required to be made or obtained in connection with the execution and delivery by Purchaser of this Agreement or the consummation by Purchaser of the Merger and the other transactions contemplated by this Agreement, including the Bank Merger. As of the date hereof, Purchaser has no Knowledge of any reason pertaining to Purchaser why any of the approvals referred to in this Section 3.3(f) should not be obtained without the imposition of any material condition or restriction described in Section 6.2(e).

(g) Governmental Filings. Purchaser and each of its Subsidiaries has filed all reports, schedules, registration statements and other documents that it has been required to file since January 1, 2015 with the Federal Reserve, the MDOB or any other Governmental Entity. As of their respective dates, each of such filings complied in all material respects with all laws or regulations under which it was filed (or was amended so as to be in compliance promptly following discovery of such noncompliance).

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(h) Securities Filings. Purchaser has filed with the SEC all reports, schedules, registration statements, definitive proxy statements and exhibits thereto that it has been required to file under the Securities Act or the Exchange Act since January 1, 2015 (collectively, “Purchaser Reports”). None of Purchaser Reports contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements made therein, in light of the circumstances under which they were made, not misleading. As of their respective dates of filing with the SEC, all of Purchaser Reports complied in all material respects with the applicable requirements of the Securities Act or the Exchange Act, as the case may be, and the rules and regulations of the SEC promulgated thereunder. Each of the financial statements (including, in each case, any notes thereto) of Purchaser included in Purchaser Reports complied as to form, as of their respective dates of filing with the SEC, in all material respects with applicable accounting requirements and with the published rules and regulations of the SEC with respect thereto.

(i) Financial Statements. Purchaser has previously made available to the Company copies of (i) the consolidated balance sheets of Purchaser and its Subsidiaries as of December 31, 2017 and 2016 and related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flows for each of the years in the three-year period ended December 31, 2017, together with the notes thereto, accompanied by the audit report of Purchaser’s independent registered public accounting firm, as reported in Purchaser’s Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC. Such financial statements were prepared from the books and records of Purchaser and its Subsidiaries, fairly present the consolidated financial position of Purchaser and its Subsidiaries in each case at and as of the dates indicated and the consolidated results of operations and cash flows of Purchaser and its Subsidiaries for the periods indicated, and, except as otherwise set forth in the notes thereto, were prepared in accordance with GAAP consistently applied throughout the periods covered thereby. The books and records of Purchaser and its Subsidiaries have been, and are being, maintained in all material respects in accordance with GAAP and any other legal and accounting requirements and reflect only actual transactions.

(j) Undisclosed Liabilities. Neither Purchaser nor any of its Subsidiaries has incurred any debt, liability or obligation of any nature whatsoever (whether accrued, contingent, absolute or otherwise and whether due or to become due) other than liabilities reflected on or reserved against in the consolidated balance sheet of Purchaser as of December 31, 2017, except for (i) liabilities incurred since December 31, 2017 in the ordinary course of business consistent with past practice that, either alone or when combined with all similar liabilities, have not had, and would not reasonably be expected to have, a Material Adverse Effect on Purchaser and (ii) liabilities incurred for legal, accounting, financial advising fees and out-of-pocket expenses in connection with the transactions contemplated by this Agreement.

(k) Absence of Certain Changes or Events. Since December 31, 2017, Purchaser and its Subsidiaries have conducted their respective businesses only in the ordinary and usual course of such businesses consistent with their past practices and there has not been any event or occurrence that has had, or is reasonably expected to have, a Material Adverse Effect on Purchaser.

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(l) Litigation. There are no material suits, actions or legal, administrative or arbitration proceedings pending or, to the Knowledge of Purchaser, threatened against or affecting Purchaser or any of its Subsidiaries or any property or asset of Purchaser or any of its Subsidiaries that (i) are seeking damages or declaratory relief against Purchaser or any of its Subsidiaries or (ii) challenge the validity or propriety of the transactions contemplated by this Agreement. There are no judgments, decrees, injunctions, orders or rulings of any Governmental Entity or arbitrator outstanding against Purchaser or any of its Subsidiaries or the assets of Purchaser or any of its Subsidiaries. Since January 1, 2015 (i) there have been no subpoenas, written demands, or document requests received by Purchaser or any of its Subsidiaries from any Governmental Entity and (ii) no Governmental Entity has requested that Purchaser or any of its Subsidiaries enter into a settlement, negotiation or tolling agreement with respect to any matter related to any such subpoena, written demand, or document request.

(m) Absence of Regulatory Actions. Since January 1, 2015, neither Purchaser nor any of its Subsidiaries has been a party to any cease and desist order, written agreement or memorandum of understanding with, or any commitment letter or similar undertaking to, or has been subject to any action, proceeding, order or directive by any Governmental Entity, or has adopted any board resolutions relating to such matters as are material to the business of Purchaser or its Subsidiaries at the request of any Governmental Entity, or has been advised by any Governmental Entity that it is contemplating issuing or requesting (or is considering the appropriateness of issuing or requesting) any such action, proceeding, order, directive, written agreement, memorandum of understanding, commitment letter, board resolutions or similar undertaking. To the Knowledge of Purchaser, there are no material unresolved violations, criticisms or exceptions by any Governmental Entity with respect to any report or statement relating to any examinations of Purchaser or its Subsidiaries.

(n) Compliance with Laws. To the Knowledge of Purchaser, Purchaser and each of its Subsidiaries have complied in all material respects with and are not in material default or violation under any applicable law, statute, order, rule, regulation, policy and/or guideline of any Governmental Entity relating to the Company or any of its Subsidiaries, including without limitation all laws related to data protection or privacy, the Equal Credit Opportunity Act and Regulation B, the Fair Housing Act, the Fair Credit Reporting Act, the Truth in Lending Act and Regulation Z, the Home Mortgage Disclosure Act, the Fair Debt Collection Practices Act, the Electronic Fund Transfer Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the Interagency Policy Statement on Retail Sales of Nondeposit Investment Products, the SAFE Mortgage Licensing Act of 2008, the Real Estate Settlement Procedures Act and Regulation X, and any other law relating to bank secrecy, discriminatory lending, financing or leasing practices, money laundering prevention, Sections 23A and 23B of the Federal Reserve Act, the Sarbanes-Oxley Act, and all agency requirements relating to the origination, sale and servicing of mortgage and consumer loans. Purchaser and each of its Subsidiaries has all material permits, licenses, certificates of authority, orders and approvals of, and has made all filings, applications and registrations with, all Governmental Entities that are required in order to permit it to carry on its business as it is presently conducted. All such permits, licenses, certificates of authority, orders and approvals are in full force and effect, and no suspension or cancellation of any of them is, to the Knowledge of Purchaser, threatened. Neither Purchaser nor

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any of its Subsidiaries has been given notice or been charged with any violation of, any law, ordinance, regulation, order, writ, rule, decree or condition to approval of any Governmental Entity that, individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect on Purchaser.

(o) Taxes. All federal, state, local and foreign tax returns required to be filed by or on behalf of Purchaser or any of its Subsidiaries have been timely filed or requests for extensions have been timely filed and any such extension shall have been granted and not have expired, and all such filed returns are complete and accurate in all material respects. All Taxes shown on such returns, all Taxes required to be shown on returns for which extensions have been granted and all other Taxes required to be paid by Purchaser or any of its Subsidiaries have been paid in full or adequate provision has been made for any such Taxes on Purchaser’s balance sheet (in accordance with GAAP). To the Knowledge of Purchaser, there is no audit examination, deficiency assessment, tax investigation or refund litigation with respect to any Taxes of Purchaser or any of its Subsidiaries, and no claim has been made in writing by any authority in a jurisdiction where Purchaser or any of its Subsidiaries do not file tax returns that Purchaser or any such Subsidiary is subject to taxation in that jurisdiction. All Taxes, interest, additions and penalties due with respect to completed and settled examinations or concluded litigation relating to Purchaser or any of its Subsidiaries have been paid in full or adequate provision has been made for any such Taxes on Purchaser’s balance sheet (in accordance with GAAP). Purchaser and its Subsidiaries have not executed an extension or waiver of any statute of limitations on the assessment or collection of any tax due that is currently in effect. Purchaser and each of its Subsidiaries has withheld and paid all Taxes required to have been withheld and paid in connection with amounts paid or owing to any employee, independent contractor, creditor, stockholder or other third party, and Purchaser and each of its Subsidiaries has timely complied with all applicable information reporting requirements under Part III, Subchapter A of Chapter 61 of the IRC and similar applicable state and local information reporting requirements.

(p) Agreements.

(i) Each contract, arrangement, commitment or understanding (whether written or oral) that is a “material contract” (as such term is defined in Item 601(b)(10) of Regulation S-K under the Securities Act) to which Purchaser or any of its Subsidiaries is a party or by which Purchaser or any of its Subsidiaries is bound as of the date hereof has been filed as an exhibit to the most recent Annual Report on Form 10-K filed by Purchaser, or a Quarterly Report on Form 10-Q or Current Report on Form 8-K subsequent thereto (each, a “Purchaser Contract”) and neither Purchaser nor any of its Subsidiaries knows of, or has received notice of, any material violation of the above by any of the other parties thereto.

(ii) Each Purchaser Contract is valid and binding on Purchaser or one of its Subsidiaries, as applicable, and in full force and effect, except as, either individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect on Purchaser. Purchaser and each of its Subsidiaries has in all material respects performed all obligations required to be performed by it under each Purchaser Contract. To the Knowledge of Purchaser, each third-party counterparty to each Purchaser Contract has in all material respects performed all obligations required to be performed by it under such Purchaser Contract, and no event or condition exists which constitutes or, after notice or lapse of time or both, will constitute, a material default on the part of Purchaser or any of its Subsidiaries under any such Purchaser Contract.

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(q) Labor Matters. Purchaser and its Subsidiaries are in material compliance with all applicable laws respecting employment, retention of independent contractors, employment practices, terms and conditions of employment, and wages and hours. Neither Purchaser nor any of its Subsidiaries is or has ever been a party to, or is or has ever been bound by, any collective bargaining agreement, contract or other agreement or understanding with a labor union or labor organization with respect to its employees, nor is Purchaser or any of its Subsidiaries the subject of any proceeding asserting that it has committed an unfair labor practice or seeking to compel it or any such Subsidiary to bargain with any labor organization as to wages and conditions of employment nor, to the Knowledge of Purchaser, has any such proceeding been threatened, nor is there any strike, other labor dispute or organizational effort involving Purchaser or any of its Subsidiaries pending or, to the Knowledge of Purchaser, threatened.

(r) Employee Benefit Plans.

(i) For purposes of this Agreement, “Purchaser Benefit Plans” mean all employee benefit plans (as defined in Section 3(3) ERISA), whether or not subject to ERISA, whether funded or unfunded, and all pension, benefit, retirement, bonus, stock option, stock purchase, restricted stock, stock-based, performance award, phantom equity, incentive, deferred compensation, retiree medical or life insurance, supplemental retirement, severance, accrued leave, sick leave, vacation, paid time off, health, medical, disability, life, accidental death and dismemberment, insurance, welfare, fringe benefit and other similar plans, programs, policies, practices or arrangements or other contracts or agreements (and any amendments thereto) with respect to which Purchaser or any Subsidiary or any trade or business of Purchaser or any of its Subsidiaries, whether or not incorporated, all of which together with Purchaser would be deemed a “single employer” within the meaning of Section 4001 of ERISA (a “Purchaser ERISA Affiliate”), is a party or that are sponsored, maintained, contributed to or required to be contributed to by Purchaser or any of its Subsidiaries or any Purchaser ERISA Affiliate for the benefit of any current employee, officer, director, consultant or independent contractor (or any spouse or dependent of such individual) of Purchaser or any of its Subsidiaries or any Purchaser ERISA Affiliate.

(ii) Each Purchaser Benefit Plan has been established, operated and administered in all material respects in accordance with its terms and the requirements of all applicable laws, including ERISA and the IRC. Neither Purchaser nor any of its Subsidiaries has taken any action to take corrective action or made a filing under any voluntary correction program of the IRS, the DOL or any other Governmental Entity with respect to any Purchaser Benefit Plan, and neither Purchaser nor any of its Subsidiaries has any Knowledge of any plan defect that would qualify for correction under any such program.

(iii) With regard to each Purchaser Benefit Plan that is intended to be qualified under Section 401(a) of the IRC (the “Purchaser Qualified Plans”), the IRS has issued a favorable determination letter with respect to each Purchaser Qualified Plan and the

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related trust, which letter has not been revoked (nor has revocation been threatened), and, to the Knowledge of Purchaser, there are no existing circumstances and no events have occurred that could adversely affect the qualified status of any Purchaser Qualified Plan or the exempt status of the related trust or increase the costs relating thereto. No trust funding any Purchaser Benefit Plan is intended to meet the requirements of Section 501(c)(9) of the IRC.

(iv) With respect to each Purchaser Benefit Plan that is subject to Title IV or Section 302 of ERISA or Sections 412, 430 or 4971 of the IRC: (i) no such plan is in “at-risk” status for purposes of Section 430 of the IRC, (ii) no reportable event within the meaning of Section 4043(c) of ERISA for which the 30-day notice requirement has not been waived has occurred, (iii) all premiums to the PBGC have been timely paid in full, (iv) no liability (other than for premiums to the PBGC) under Title IV of ERISA has been or is expected to be incurred by Purchaser or any of its Subsidiaries, and (v) the PBGC has not instituted proceedings to terminate any such Purchaser Benefit Plan.

(v) There are no pending or threatened claims (other than claims for benefits in the ordinary course), lawsuits or arbitrations that have been asserted or instituted, and, to Purchaser’s Knowledge, no set of circumstances exists that may reasonably be expected to give rise to a claim or lawsuit, against Purchaser Benefit Plans, any fiduciaries thereof with respect to their duties to Purchaser Benefit Plans or the assets of any of the trusts under any of Purchaser Benefit Plans, that could reasonably be expected to result in any material liability of Purchaser or any of its Subsidiaries to the PBGC, the IRS, the DOL, any Multiemployer Plan, a Multiple Employer Plan, any participant in any Purchaser Benefit Plan, or any other party.

(vi) To the Knowledge of Purchaser, none of Purchaser and its Subsidiaries nor any Purchaser ERISA Affiliate nor any other person, including any fiduciary, has engaged in any “prohibited transaction” (as defined in Section 4975 of the IRC or Section 406 of ERISA) that could subject any of Purchaser Benefit Plans or their related trusts, Purchaser, any of its Subsidiaries, any Purchaser ERISA Affiliate or any person that Purchaser or any of its Subsidiaries has an obligation to indemnify, to any material tax or penalty imposed under Section 4975 of the IRC or Section 502 of ERISA.

(s) Properties. Purchaser and each of its Subsidiaries has good and marketable title to all real property owned by it (including any property acquired in a judicial foreclosure proceeding or by way of a deed in lieu of foreclosure or similar transfer), in each case free and clear of any Liens except (i) liens for Taxes not yet due and payable and (ii) such easements, restrictions and encumbrances, if any, as are not material in character, amount or extent, and do not materially detract from the value, or materially interfere with the present use of the properties subject thereto or affected thereby. Each lease pursuant to which Purchaser or any of its Subsidiaries as lessee, leases real or personal property is valid and in full force and effect as to Purchaser and the Subsidiaries and neither Purchaser nor any of its Subsidiaries, nor, to Purchaser’s Knowledge, any other party to any such lease, is in default or in violation of any material provisions of any such lease. All real property owned or leased by Purchaser or any of its Subsidiaries are in all material respects in a good state of maintenance and repair (normal wear and tear excepted), conform in all material respects with all applicable ordinances, regulations and zoning laws and are considered by Purchaser to be adequate for the current business of Purchaser and its Subsidiaries.

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(t) Loan Matters. All Loans held by Purchaser or any of its Subsidiaries were made in all material respects for good, valuable and adequate consideration in the ordinary course of the business, in accordance in all material respects with sound banking practices and, to the Knowledge of Purchaser, the Loans are not subject to any defenses, setoffs or counterclaims, including without limitation any such as are afforded by usury or truth in lending laws, except as may be provided by bankruptcy, insolvency or similar laws or by general principles of equity. The notes or other evidences of indebtedness evidencing such Loans and all forms of pledges, mortgages and other collateral documents and security agreements are, in all material respects, enforceable and valid.

(u) Anti-takeover Provisions Inapplicable. Purchaser and its Subsidiaries have taken all actions required to exempt Purchaser, the Agreement, the Plan of Bank Merger, the Merger and the Bank Merger from any provisions of an anti-takeover nature contained in their organizational documents, and the provisions of any federal or state “anti-takeover,” “fair price,” “moratorium,” “control share acquisition” or similar laws or regulations.

(v) Corporate Documents and Records. Purchaser has previously made available a complete and correct copy of the Articles of Incorporation, bylaws and similar organizational documents of Purchaser and each of Purchaser’s Subsidiaries, as in effect as of the date of this Agreement. Neither Purchaser nor any of Purchaser’s Subsidiaries is in violation of its Articles of Incorporation, bylaws or similar organizational documents. The minute books of Purchaser and each of Purchaser’s Subsidiaries constitute a complete and correct record of all actions taken by their respective boards of directors (and each committee thereof) and their stockholders.

(w) CRA, Anti-Money Laundering, OFAC and Customer Information Security. First Interstate Bank has received a rating of “Satisfactory” or better in its most recent examination or interim review with respect to the CRA. Purchaser does not have Knowledge of any facts or circumstances that would cause First Interstate Bank or any other Subsidiary of Purchaser: (i) to be deemed not to be in satisfactory compliance in any material respect with the CRA, and the regulations promulgated thereunder, or to be assigned a rating for CRA purposes by federal bank regulators of lower than “Satisfactory”; or (ii) to be deemed to be operating in violation in any material respect of the Bank Secrecy Act, the USA PATRIOT Act, any order issued with respect to anti-money laundering by the U.S. Department of the Treasury’s Office of Foreign Assets Control, or any other applicable anti-money laundering statute, rule or regulation; or (iii) to be deemed not to be in satisfactory compliance in any material respect with the applicable privacy of customer information requirements contained in any federal and state privacy laws and regulations, including without limitation, in Title V of the Gramm-Leach-Bliley Act of 1999 and the regulations promulgated thereunder, as well as the provisions of the information security program adopted by First Interstate Bank. To the Knowledge of Purchaser, no non-public customer information has been disclosed to or accessed by an unauthorized third party in a manner that would cause either Purchaser or any of its Subsidiaries to undertake any remedial action. The Board of Directors of First Interstate Bank (or where appropriate of any

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other Subsidiary of Purchaser) has adopted, and First Interstate Bank (or such other Subsidiary of Purchaser) has implemented, an anti-money laundering program that contains adequate and appropriate customer identification verification procedures that comply with Section 326 of the USA PATRIOT Act and such anti-money laundering program meets the requirements in all material respects of Section 352 of the USA PATRIOT Act and the regulations thereunder, and First Interstate Bank (or such other Subsidiary of Purchaser) has complied in all material respects with any requirements to file reports and other necessary documents as required by the USA PATRIOT Act and the regulations thereunder.

(x) Internal Controls. Purchaser and its Subsidiaries have devised and maintain a system of internal control over financial reporting as defined in Rule 13a-15(f) of the Exchange Act sufficient to provide reasonable assurances regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP and to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets, and (iii) access to assets is permitted only in accordance with management’s general or specific authorization. There are no significant deficiencies or material weaknesses in the design or operation of internal controls over financial reporting that are reasonably likely to adversely affect in any material respect Purchaser’s ability to record, process, summarize and report financial information. To the Knowledge of Purchaser, there has occurred no fraud, whether or not material, that involves management or other employees who have a significant role in Purchaser’s internal controls over financial reporting.

(y) Tax Treatment of the Merger. Purchaser has no Knowledge of any fact or circumstance relating to it that would prevent the transactions contemplated by this Agreement from qualifying as a reorganization under Section 368(a) of the IRC.

(z) Fairness Opinion. The Board of Directors of Purchaser has received the opinion (which, if initially rendered verbally, has been or will be confirmed by a written opinion, dated the same date) of Sandler O’Neill & Partners, L.P. to the effect that, as of the date of such opinion and subject to the assumptions, limitations and qualifications set forth therein, the Exchange Ratio in the Merger is fair, from a financial point of view, to Purchaser.

(aa) Environmental Matters. Except as set forth in Purchaser’s Disclosure Letter, each of Purchaser’s and its Subsidiaries’ properties, the Participation Facilities, and, to the Knowledge of Purchaser, the Loan Properties, are, and have been during the period of Purchaser’s or its Subsidiaries’ ownership or operation thereof, in material compliance with all Environmental Laws.

(bb) Insurance. In the opinion of management, Purchaser and its Subsidiaries are presently insured for amounts deemed reasonable by management against such risks as companies engaged in a similar business, including engaging in the transactions contemplated by the Agreement, would, in accordance with good business practice, customarily be insured. All of the insurance policies and bonds maintained by Purchaser and its Subsidiaries are in full force and effect, Purchaser and its Subsidiaries are not in default thereunder, all premiums and other payments due under any such policy have been paid and all material claims thereunder have been filed in due and timely fashion.

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(cc) Intellectual Property; Purchaser IT Systems.

(i) Purchaser and each of its Subsidiaries owns or possesses valid and binding licenses and other rights to use (in the manner and the geographic areas in which they are currently used) without payment all patents, copyrights, trade secrets, trade names, service marks and trademarks material to its business. With regard to all material trademarks, trade names, service marks and copyrights owned by Purchaser or any of its Subsidiaries for use in its business, and all licenses and other agreements relating thereto and all agreements relating to third party intellectual property that Purchaser or any of its Subsidiaries is licensed or authorized to use in its business, including without limitation any software licenses but excluding any so-called “shrink-wrap” license agreements and other similar computer software licensed in the ordinary course of business and/or otherwise resident on desktop computers (collectively, the “Purchaser Intellectual Property”), the owner possesses all right, title and interest in and to the item, free and clear of any Lien. With respect to each item of Purchaser Intellectual Property that Purchaser or any of its Subsidiaries is licensed or authorized to use, the license, sublicense or agreement covering such item is legal, valid, binding, enforceable and in full force and effect as to Purchaser and the Subsidiaries. Neither Purchaser nor any of its Subsidiaries has received any charge, complaint, claim, demand or notice alleging any interference, infringement, misappropriation or violation with or of any intellectual property rights of a third party (including any claims that Purchaser or any of its Subsidiaries must license or refrain from using any intellectual property rights of a third party). To the Knowledge of Purchaser, neither Purchaser nor any of its Subsidiaries has interfered with, infringed upon, misappropriated or otherwise come into conflict with any intellectual property rights of third parties and no third party has interfered with, infringed upon, misappropriated or otherwise come into conflict with any intellectual property rights of Purchaser or any of its Subsidiaries.

(ii) To Purchaser’s Knowledge, all information technology and computer systems (including software, information technology and telecommunication hardware and other equipment) relating to the transmission, storage, maintenance, organization, presentation, generation, processing or analysis of data and information, whether or not in electronic format, used in or necessary to the conduct of the business of Purchaser or First Interstate Bank (collectively, “Purchaser IT Systems”) have been properly maintained by technically competent personnel, in accordance with standards set by the manufacturers or otherwise in accordance with standards in the industry, to ensure proper operation, monitoring and use. Purchaser IT Systems are in good working condition to effectively perform all information technology operations necessary to conduct Purchaser’s consolidated business as currently conducted. Neither Purchaser nor First Interstate Bank has experienced within the past two years any material disruption to, or material interruption in, the conduct of its business attributable to a defect, bug, breakdown or other failure or deficiency of Purchaser IT Systems. No Person has gained unauthorized access to any of the Purchaser IT Systems that has had, or is reasonably expected to have, a Material Adverse Effect on Purchaser. Purchaser and First

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Interstate Bank have taken reasonable measures to provide for the back-up and recovery of the data and information necessary to the conduct of their businesses without material disruption to, or material interruption in, the conduct of their respective businesses. Purchaser and its Subsidiaries are in compliance in all material respects with all data protection and privacy laws and regulations as well as their own policies relating to data protection and the privacy and security of personal data and the non-public personal information of their respective customers and employees, except for immaterial failures to comply or immaterial violations.

(dd) No Other Representations or Warranties.

(i) Except for the representations and warranties made by Purchaser in this Section 3.3, neither Purchaser nor any other Person makes any express or implied representation or warranty with respect to Purchaser, its Subsidiaries, or their respective businesses, operations, assets, liabilities, conditions (financial or otherwise) or prospects, and Purchaser hereby disclaims any such other representations or warranties. In particular, without limiting the foregoing disclaimer, neither Purchaser nor any other Person makes or has made any representation or warranty to the Company or any of its Affiliates or representatives with respect to (A) any financial projection, forecast, estimate, budget or prospective information relating to Purchaser, any of its Subsidiaries or their respective businesses, or (B) except for the representations and warranties made by Purchaser in this Section 3.3, any oral or written information presented to the Company or any of its Affiliates or representatives in the course of their due diligence investigation of Purchaser, the negotiation of this Agreement or in the course of the transactions contemplated hereby.

(ii) Purchaser hereby acknowledges and agrees that neither the Company nor any other Person has made or is making any express or implied representation or warranty other than those contained in Section 3.2.

ARTICLE IV

CONDUCT PENDING THE MERGER

4.1 Forbearances by the Company. Except as expressly contemplated or permitted by this Agreement, disclosed in the Company’s Disclosure Letter, or to the extent required by law or regulation or any Governmental Entity, during the period from the date of this Agreement to the Effective Time, the Company shall not, nor shall the Company permit any of its Subsidiaries to, without the prior written consent (which may include consent via electronic mail) of Purchaser (which consent shall not be unreasonably withheld, conditioned or delayed):

(a) conduct its business other than in the regular, ordinary and usual course consistent with past practice; fail to use reasonable efforts to maintain and preserve intact its business organization, properties, leases, employees and advantageous business relationships and retain the services of its officers and key employees; or take any action that would adversely affect or materially delay its ability to perform its obligations under this Agreement or to consummate the transactions contemplated hereby;

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(b)   (i) incur, modify, extend or renegotiate any indebtedness for borrowed money, or assume, guarantee, endorse or otherwise as an accommodation become responsible for the obligations of any other person, other than (A) the creation of deposit liabilities in the ordinary course of business consistent with past practice and (B) advances from the FHLB with a maturity of not more than one year;

(ii) prepay any indebtedness or other similar arrangements so as to cause the Company to incur any prepayment penalty thereunder; or

(iii) purchase any brokered certificates of deposit;

(c)   (i) adjust, split, combine or reclassify any capital stock;

(ii) make, declare or pay any dividend, or make any other distribution on its capital stock except for distributions payable to service Company’s outstanding subordinated notes and distributions from INB to Company to cover expenses incurred in the ordinary course of business consistent with past practice, expenses incurred in connection with filings with regulatory agencies by the Company and expenses incurred in connection with the transactions contemplated by this Agreement;

(iii) grant any person any right to acquire any shares of its capital stock or make any grant or award under the Company Equity Plan;

(iv) issue any additional shares of capital stock or any securities or obligations convertible or exercisable for any shares of its capital stock, except pursuant to the exercise of stock options or Company Warrants outstanding as of the date hereof; or

(v) redeem or otherwise acquire any shares of its capital stock other than a security interest or as a result of the enforcement of a security interest and other than as provided in this Agreement;

(d) other than in the ordinary course of business consistent with past practice (including the sale, transfer or disposal of other real estate owned (“OREO”)), (i) sell, transfer, mortgage, encumber or otherwise dispose of any of its real property or other assets to any person other than a Subsidiary, or (ii) cancel, release or assign any indebtedness to any such Person or any claims held by any such Person;

(e) make any equity investment, either by purchase of stock or securities, contributions to capital, property transfers, or purchase of any property or assets of any other person, or form any new subsidiary;

(f) enter into, renew, amend or terminate any material contract, plan or agreement, or make any change in any of its leases or material contracts;

(g) Except for Loans or commitments for Loans that have previously been approved by the Company prior to the date of this Agreement, make, renegotiate, renew, increase the amount of, extend the term of, modify or purchase any Loans, or make any commitment in respect of any of the foregoing, except in conformity with existing lending practices;

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(h)   (i) make any new Loan, or commit to make any new Loan, to any director or executive officer of the Company or INB, or any entity controlled, directly or indirectly, by any of the foregoing or (ii) except for Loans made in accordance with Regulation O of the Federal Reserve (12 C.F.R. Part 215), amend, renew or increase any existing Loan, or commit to amend, renew or increase any such Loan, to any director or executive officer of the Company or INB, or any entity controlled, directly or indirectly, by any of the foregoing;

(i)   (i) (a) increase in any manner the compensation, bonuses or other fringe benefits of any of its employees or directors, other than in the ordinary course of business consistent with past practice and pursuant to policies and written incentive plans then in effect or as set forth in the Company’s Disclosure Letter, or (b) pay any bonus, pension, retirement allowance or contribution, except for cash bonuses in the ordinary course of business consistent with past practice and as set forth in the Company’s Disclosure Letter but not to exceed 10.0% of such individual’s base salary or wage rate as of the date hereof;

(ii) become a party to, amend, renew, extend or commit itself to any pension, retirement, profit-sharing or welfare benefit plan or agreement or employment, severance or change in control agreement with or for the benefit of any employee or director, except for amendments to any plan or agreement that are required by law;

(iii) amend, modify or revise the terms of any outstanding stock option or Company Warrant or voluntarily accelerate the vesting of, or the lapsing of restrictions with respect to, any stock options or other stock-based compensation; or make any contributions to any defined contribution plan not in the ordinary course of business consistent with past practice;

(iv) elect to any office with the title of Senior Vice President or higher any person who does not hold such office as of the date of this Agreement or elect to its Board of Directors any person who is not a member of its Board of Directors as of the date of this Agreement; or

(v) hire any employee with an annualized salary in excess of $100,000 except as may be necessary to replace any employee whose employment is terminated, whether voluntarily or involuntarily;

(j) commence any action or proceeding, other than to enforce any obligation owed to the Company or any of its Subsidiaries and in accordance with past practice, or settle any claim, action or proceeding (i) involving payment by it of money damages in excess of $100,000 or (ii) that would impose any material restriction on its operations or the operations of any of its Subsidiaries;

(k) amend its Articles of Incorporation or bylaws, or similar governing documents;

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(l) increase or decrease the rate of interest paid on time deposits or on certificates of deposit, except in the ordinary course of business;

(m) purchase any debt security, including mortgage-backed and mortgage-related securities, other than U.S. government and U.S. government agency securities with final maturities of less than one year;

(n) make any capital expenditures in the aggregate in excess of $100,000, other than pursuant to binding commitments existing on the date hereof, which are described in the Company’s Disclosure Letter, and except for expenditures reasonably necessary to maintain existing assets in good repair;

(o) establish or commit to the establishment of any new branch or other office facilities or file any application to relocate or terminate the operation of any banking office;

(p) enter into any futures contract, option, swap agreement, interest rate cap, interest rate floor, interest rate exchange agreement, or take any other action for purposes of hedging the exposure of its interest-earning assets or interest-bearing liabilities to changes in market rates of interest;

(q) make any changes in policies in any material respect in existence on the date hereof with regard to: the extension of credit, or the establishment of reserves with respect to possible loss thereon or the charge off of losses incurred thereon; investments; asset/liability management; deposit pricing or gathering; underwriting, pricing, originating, acquiring, selling, servicing or buying or selling rights to service, loans; its hedging practices and policies; or other material banking policies, in each case except as may be required by changes in applicable law or regulations, GAAP, or at the direction of a Governmental Entity;

(r) except as required by law or for communications in the ordinary course of business consistent with past practice that do not relate to the Merger or other transactions contemplated hereby:

(i) issue any communication of a general nature to employees (including general communications relating to benefits and compensation) without prior consultation with Purchaser and, to the extent relating to post-Closing employment, benefit or compensation information, without the prior consent of Purchaser (which shall not be unreasonably withheld, conditioned or delayed); or

(ii) issue any communication of a general nature to customers without the prior approval of Purchaser (which shall not be unreasonably withheld, conditioned or delayed);

(s) except with respect to foreclosures in process as of the date hereof, foreclose upon or take a deed or title to any commercial real estate (i) without providing prior notice to Purchaser and conducting a Phase I environmental assessment of the property and (ii) if the Phase I environmental assessment referred to in the prior clause reflects the presence of any Hazardous Material or underground storage tank;

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(t) make, change or rescind any material election concerning Taxes or Tax Returns, file any amended Tax Return, enter into any closing agreement with respect to Taxes, settle or compromise any material Tax claim or assessment, or surrender any right to claim a refund of Taxes or obtain any Tax ruling;

(u) take any action that is intended or expected to result in any of its representations and warranties set forth in this Agreement being or becoming untrue in any material respect at any time prior to the Effective Time, or in any of the conditions to the Merger set forth in Article VI not being satisfied or in a violation of any provision of this Agreement;

(v) implement or adopt any change in its accounting principles, practices or methods, other than as may be required by GAAP or regulatory guidelines;

(w) enter into any new lines of business;

(x) purchase or sell any mortgage loan servicing rights other than in the ordinary course of business consistent with past practice;

(y) merge or consolidate INB or any Subsidiary with any other corporation or restructure, reorganize or completely or partially liquidate or dissolve it or any of its Subsidiaries;

(z) knowingly take action that would prevent or impede the Merger from qualifying as a reorganization within the meaning of Section 368 of the IRC; or

(aa) agree to take, make any commitment to take, or adopt any resolutions of its Board of Directors in support of, any of the actions prohibited by this Section 4.1.

Any request by the Company or response thereto by Purchaser shall be made in accordance with the notice provisions of Section 8.7 and shall note that it is a request pursuant to this Section 4.1.

4.2 Forbearances by Purchaser. Except as expressly contemplated or permitted by this Agreement or to the extent required by law or regulation or any Governmental Entity, during the period from the date of this Agreement to the Effective Time, Purchaser shall maintain its rights and franchises in all material respects, and shall not, nor shall Purchaser permit any of its Subsidiaries to, without the prior written consent (which may include consent via electronic mail) of the Company (which consent shall not be unreasonably withheld, conditioned or delayed):

(a) conduct its business other than in the regular, ordinary and usual course consistent with past practice; fail to use reasonable efforts to maintain and preserve intact its business organization, properties, leases, employees and advantageous business relationships and retain the services of its officers and key employees;

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(b) take any action that would adversely affect or materially delay its ability to perform its obligations under this Agreement or to consummate the transactions contemplated hereby;

(c) take any action that is intended to or expected to result in any of its representations and warranties set forth in this Agreement being or becoming untrue in any material respect at any time prior to the Effective Time, or in any of the conditions to the Merger set forth in Article VI not being satisfied or in a violation of any provision of this Agreement;

(d) knowingly take action that would prevent or impede the Merger from qualifying as a reorganization within the meaning of Section 368 of the IRC;

(e) agree to take, make any commitment to take, or adopt any resolutions of its Board of Directors in support of, any of the actions prohibited by this Section 4.2; or

(f) amend, repeal or modify any provision of its Articles of Incorporation or Bylaws in a manner that would adversely affect the Company or any Company stockholder or the transactions contemplated by this Agreement.

ARTICLE V

COVENANTS

5.1 Acquisition Proposals.

(a) From the date of this Agreement until the earlier to occur of the Closing or the termination of this Agreement in accordance with its terms, the Company shall not, and shall not authorize or permit any of its Subsidiaries or any of its Subsidiaries’ officers, directors or employees or any investment banker, financial advisor, attorney, accountant or other representative retained by the Company or any of its Subsidiaries to, directly or indirectly, (i) solicit, initiate, induce or encourage, or take any other action to facilitate, any inquiries, offers discussions or the making of any proposal that constitutes or could reasonably be expected to lead to an Acquisition Proposal, (ii) furnish any confidential or non-public information or data regarding the Company or any of its Subsidiaries or afford access to any such information or data to any Person in connection with or in response to an Acquisition Proposal or an inquiry or indication of interest that would reasonably be expected to lead to an Acquisition Proposal, (iii) continue or otherwise participate in any discussions or negotiations, or otherwise communicate in any way with any person (other than Purchaser), regarding an Acquisition Proposal, (iv) approve, endorse or recommend any Acquisition Proposal, (v) release any person from, waive any provisions of, or fail to use its reasonable best efforts to enforce any confidentiality agreement or standstill agreement to which the Company is a party or (vi) enter into or consummate any agreement, agreement in principle, letter of intent, arrangement or understanding contemplating any Acquisition Proposal or requiring the Company to abandon, terminate or fail to consummate the transactions contemplated hereby. Without limiting the foregoing, it is understood that any violation of the restrictions set forth in the preceding sentence by any officer, director or employee of the Company or any of the Subsidiaries or any investment banker, financial advisor, attorney, accountant or other representative retained by the

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Company or any of its Subsidiaries shall be deemed to be a breach of this Section 5.1 by the Company. Notwithstanding the foregoing, prior to the adoption and approval of this Agreement by the Company’s stockholders at the Company Stockholder Meeting, this Section 5.1(a) shall not prohibit the Company from furnishing non-public information regarding the Company and its Subsidiaries to, or entering into discussions with, any person in response to an Acquisition Proposal that is submitted to the Company by such Person (and not withdrawn) if (1) the Acquisition Proposal constitutes or is reasonably expected to result in a Superior Proposal, (2) the Company has not breached any of the covenants set forth in this Section 5.1, (3) the Company’s Board of Directors determines in good faith, after consultation with outside legal counsel, that the failure to take such action would reasonably be expected to violate the directors’ fiduciary obligations to the Company’s stockholders under applicable law, and (4) prior to furnishing any non-public information to, or entering into discussions with, such Person, the Company gives Purchaser written notice of the identity of such Person and of the Company’s intention to furnish non-public information to, or enter into discussions with, such Person and the Company receives from such Person an executed confidentiality agreement on terms no more favorable to such Person than the confidentiality agreement between Purchaser and the Company is to Purchaser.

(b) The Company will notify Purchaser orally within twenty-four (24) hours and in writing (within two (2) calendar days) of receipt of any Acquisition Proposal, any request for non-public information that could reasonably be expected to lead to an Acquisition Proposal, or any inquiry with respect to or that could reasonably be expected to lead to an Acquisition Proposal, including, in each case, the identity of the Person making such Acquisition Proposal, the request or inquiry and the terms and conditions thereof, and shall provide to Purchaser any written materials received by the Company or any of its Subsidiaries in connection therewith. The Company will keep Purchaser informed of any developments with respect to any such Acquisition Proposal, request or inquiry promptly orally (within one (1) calendar day) and in writing (within two (2) calendar days) upon the occurrence thereof.

(c) The Company will immediately cease and cause to be terminated any existing activities, discussions or negotiations with any parties conducted prior to the date of this Agreement with respect to any of the foregoing.

5.2 Advice of Changes. Prior to the Closing, each party shall promptly advise the other party orally and in writing to the extent that it has Knowledge of (i) any representation or warranty made by it contained in this Agreement becoming untrue or inaccurate in any material respect or (ii) the failure by it to comply in any material respect with or satisfy in any material respect any covenant, condition or agreement to be complied with or satisfied by it under this Agreement; provided, however, that no such notification shall affect the representations, warranties, covenants or agreements of the parties or the conditions to the obligations of the parties under this Agreement.

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5.3 Access and Information.

(a) Upon reasonable notice and subject to applicable laws relating to the exchange of information, each of Purchaser and the Company, for purposes of verifying the representations and warranties of the other and preparing for the Merger and other matters contemplated by this Agreement, shall (and shall cause its respective Subsidiaries to) afford to the other party and its representatives (including, without limitation, officers and employees of the other party and its Affiliates and counsel, accountants and other professionals retained by the other party) such reasonable access during normal business hours throughout the period prior to the Effective Time to the books, records, contracts, properties, personnel, information technology services and to such other information relating to the other party and its Subsidiaries as may be reasonably requested, except where such materials relate to (i) matters involving this Agreement, (ii) pending or threatened litigation or investigations if, in the opinion of counsel, the presence of such designees would or might adversely affect the confidential nature of, or any privilege relating to, the matters being discussed, (iii) matters involving an Acquisition Proposal or (iv) confidential supervisory information; provided, however, that no investigation pursuant to this Section 5.3 shall affect or be deemed to modify any representation or warranty made in this Agreement. Neither party nor any of its Subsidiaries shall be required to provide access to or to disclose information where such access or disclosure would violate or prejudice the rights of its customers, jeopardize the attorney-client privilege of the entity in possession or control of such information or contravene any law, rule, regulation, order, judgment, decree, fiduciary duty or binding agreement entered into prior to the date of this Agreement. The parties will make appropriate and reasonable substitute disclosure arrangements under circumstances in which the restrictions of the preceding sentence apply.

(b) From the date hereof until the Effective Time, the Company shall, and shall cause its respective Subsidiaries to, promptly provide to Purchaser (i) a copy of each report filed with a Governmental Entity, (ii) a copy of each periodic report provided to its senior management and all materials relating to its business or operations furnished to its Board of Directors, (iii) a copy of each press release made available to the public and (iv) all other information concerning its business, properties and personnel as may be reasonably requested, provided that Purchaser shall not be entitled to receive reports or other documents relating to (w) matters involving this Agreement, (x) pending or threatened litigation or investigations if, in the opinion of counsel, the disclosure of such information would or might adversely affect the confidential nature of, or any privilege relating to, the matters being discussed, (y) matters involving an Acquisition Proposal or (z) confidential supervisory information.

(c) The Company and Purchaser will not, and will cause its respective representatives not to, use any information and documents obtained in the course of the consideration of the consummation of the transactions contemplated by this Agreement, including any information obtained pursuant to this Section 5.3, for any purpose unrelated to the consummation of the transactions contemplated by this Agreement and will hold such information and documents in confidence and treat such information and documents as secret and confidential and to use all reasonable efforts to safeguard the confidentiality of such information and documents.

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(d) From and after the date hereof, representatives of Purchaser and the Company shall meet on a regular basis to discuss and plan for the conversion of the Company’s and its Subsidiaries’ data processing and related electronic informational systems to those used by Purchaser and its Subsidiaries with the goal of conducting such conversion as soon as practicable following the consummation of the Bank Merger.

(e) Within ten (10) Business Days of the end of each calendar month, the Company shall provide Purchaser with an updated list of Loans described in Section 3.2(w)(vi).

(f) The information regarding the Company and its Subsidiaries to be supplied by the Company for inclusion in the Registration Statement, any filings or approvals under applicable state securities laws, or any filing pursuant to Rule 165 or Rule 425 under the Securities Act or Rule 14a-12 under the Exchange Act will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they are made, not misleading. The information supplied, or to be supplied, by the Company for inclusion in applications to Governmental Entities to obtain all permits, consents, approvals and authorizations necessary or advisable to consummate the transactions contemplated by this Agreement shall be accurate in all material respects.

(g) The information regarding Purchaser and its Subsidiaries to be supplied by Purchaser for inclusion in the Registration Statement, any filings or approvals under applicable state securities laws, or any filing pursuant to Rule 165 or Rule 425 under the Securities Act or Rule 14a-12 under the Exchange Act will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they are made, not misleading. The Proxy Statement-Prospectus (except for such portions thereof supplied by the Company or any of its Subsidiaries) will comply as to form in all material respects with the provisions of the Exchange Act and the rules and regulations thereunder. The information supplied, or to be supplied, by Purchaser for inclusion in applications to Governmental Entities to obtain all permits, consents, approvals and authorizations necessary or advisable to consummate the transactions contemplated by this Agreement shall be accurate in all material respects. The Registration Statement will comply as to form in all material respects with the provisions of the Securities Act and the rules and regulations thereunder.

5.4 Applications; Consents.

(a) The parties hereto shall cooperate with each other and shall use their reasonable best efforts to prepare and file as soon as practicable after the date hereof, all necessary applications, notices and filings to obtain all permits, consents, approvals and authorizations of all Governmental Entities that are necessary or advisable to consummate the transactions contemplated by this Agreement. The Company and Purchaser shall furnish each other with all information concerning themselves, their respective Subsidiaries, and their respective Subsidiaries’ directors, officers and stockholders and such other matters as may be reasonably necessary or advisable in connection with any application, notice or filing made by or

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on behalf of Purchaser, the Company or any of their respective Subsidiaries to any Governmental Entity in connection with the transactions contemplated by this Agreement. Purchaser and the Company shall have the right to review in advance, and to the extent practicable each will consult with the other on, all the information relating to Purchaser and the Company, as the case may be, and any of their respective Subsidiaries, that appears in any filing made with, or written materials submitted to, any Governmental Entity pursuant to this Section 5.4(a).

(b) As soon as practicable after the date hereof, each of the parties hereto shall, and they shall cause their respective Subsidiaries to, use its reasonable best efforts to obtain any consent, authorization or approval of any third party that is required to be obtained in connection with the transactions contemplated by this Agreement.

(c) Purchaser and the Company shall promptly advise each other upon receiving any communication from any Governmental Entity whose consent or approval is required for consummation of the transactions contemplated by this Agreement that causes such party to believe that there is a reasonable likelihood that such consent or approval will not be obtained or that the receipt of any such required consent or approval will be materially delayed.

5.5 Anti-Takeover Provisions. The Company and its Subsidiaries shall take all steps required by any relevant federal or state law or regulation or under any relevant agreement or other document to exempt or continue to exempt Purchaser, the Agreement, the Plan of Bank Merger, the Merger and the Bank Merger from any provisions of an anti-takeover nature in the Company’s or its Subsidiaries’ Articles of Incorporation and Bylaws, or similar organizational documents, and the provisions of any federal or state anti-takeover laws.

5.6 Additional Agreements. Subject to the terms and conditions herein provided, each of the parties hereto agrees to use all reasonable efforts to take promptly, or cause to be taken promptly, all actions and to do promptly, or cause to be done promptly, all things necessary, proper or advisable under applicable laws and regulations to consummate and make effective the transactions contemplated by this Agreement as expeditiously as possible, including using efforts to obtain all necessary actions or non-actions, extensions, waivers, consents and approvals from all applicable Governmental Entities, effecting all necessary registrations, applications and filings (including, without limitation, filings under any applicable state securities laws) and obtaining any required contractual consents and regulatory approvals.

5.7 Publicity. The initial press release announcing this Agreement shall be a joint press release. Thereafter, the Company and Purchaser shall consult with each other prior to issuing any press releases or otherwise making public statements (including any written communications to stockholders) with respect to the Merger and any other transaction contemplated hereby; provided, however, that nothing in this Section 5.7 shall be deemed to prohibit any party from making any disclosure that its counsel deems necessary to satisfy such party’s disclosure obligations imposed by law.

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5.8 Stockholder Meeting.

(a) The Company will submit to its stockholders this Agreement and any other matters required to be approved or adopted by stockholders to carry out the intentions of this Agreement. In furtherance of that obligation, the Company will take, in accordance with applicable law and its Articles of Incorporation and Bylaws, all action necessary to call, give notice of, convene and hold a meeting of its stockholders (the “Company Stockholder Meeting”) as promptly as practicable to consider and vote on approval and adoption of this Agreement and the transactions provided for in this Agreement. Subject to Section 5.8(b), the Company shall, (i) through its Board of Directors, recommend to its stockholders adoption and approval of this Agreement, (ii) include such recommendation in the Proxy Statement-Prospectus and (iii) use commercially reasonable efforts to obtain from its stockholders a vote approving and adopting this Agreement.

(b) Notwithstanding anything in this Agreement to the contrary, at any time prior to the Company Stockholder Meeting, the Company’s Board of Directors may, if it concludes in good faith (after consultation with its outside legal advisors) that the failure to do so would be reasonably likely to result in a violation of its fiduciary duties under applicable law, withdraw or modify or change in a manner adverse to Purchaser its recommendation that the stockholders of the Company approve this Agreement (a “Change of Recommendation”); provided that prior to any such Change of Recommendation, the Company shall have complied in all material respects with Section 5.1, given Purchaser written notice promptly (and in any event within twenty-four (24) hours) advising it of the decision of the Company’s Board of Directors to take such action and, if the decision relates to an Acquisition Proposal, given Purchaser the material terms and conditions of the Acquisition Proposal or inquiry, including the identity of the Person making any such Acquisition Proposal; and provided, further, that if the decision relates to an Acquisition Proposal: (i) the Company shall have given Purchaser three (3) Business Days after delivery of such notice to Purchaser to propose revisions to the terms of this Agreement (or make another proposal) and if Purchaser proposes to revise the terms of this Agreement, the Company shall have negotiated in good faith with Purchaser with respect to such proposed revisions or other proposal; and (ii) the Company’s Board of Directors shall have determined in good faith, after considering the results of such negotiations and giving effect to any proposals, amendments or modifications made or agreed to by Purchaser, if any, that such Acquisition Proposal constitutes a Superior Proposal. If the Company’s Board of Directors does not make the determination that such Acquisition Proposal constitutes a Superior Proposal and thereafter determines not to withdraw, modify or change its recommendation that the stockholders of the Company approve this Agreement in connection with a new Acquisition Proposal, the procedures referred to above shall apply anew and shall also apply to any subsequent withdrawal, modification or change. In the event of any material revisions to the Acquisition Proposal that result in terms that are less favorable to the Company, the Company shall be required to deliver a new written notice to Purchaser and to again comply with the requirements of this Section 5.8(b) with respect to such new written notice, except that the three (3) Business Day period referred to above shall be reduced to two (2) Business Days. In addition to the foregoing, the Company shall not submit to the vote of its stockholders any Acquisition Proposal other than the Merger.

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5.9 Registration of Purchaser Common Stock.

(a) Within forty-five (45) days following the date hereof, Purchaser shall prepare and file the Registration Statement with the SEC. The Registration Statement shall contain proxy materials relating to the matters to be submitted to the Company stockholders at the stockholders meeting and shall also constitute the prospectus relating to the shares of Purchaser Common Stock to be issued in the Merger (such proxy statement/prospectus, and any amendments or supplements thereto, the “Proxy Statement-Prospectus”). The Company will furnish to Purchaser the information required to be included in the Registration Statement with respect to its business and affairs and shall have the right to review and consult with Purchaser and approve the form of, and any characterizations of such information included in, the Registration Statement prior to its being filed with the SEC. Purchaser shall use its reasonable best efforts to have the Registration Statement declared effective by the SEC and to keep the Registration Statement effective as long as is necessary to consummate the Merger and the transactions contemplated hereby. The Company will use reasonable best efforts to cause the Proxy Statement-Prospectus to be mailed to its stockholders as promptly as practicable after the Registration Statement is declared effective under the Securities Act. Purchaser will advise the Company, promptly after it receives notice thereof, of the time when the Registration Statement has become effective, the issuance of any stop order, the suspension of the qualification of Purchaser Common Stock issuable in connection with the Merger for offering or sale in any jurisdiction, or any request by the SEC for amendment of the Proxy Statement-Prospectus or the Registration Statement. If at any time prior to the Effective Time any information relating to Purchaser or the Company, or any of their respective Affiliates, officers or directors, should be discovered by Purchaser or the Company that should be set forth in an amendment or supplement to any of the Registration Statement or the Proxy Statement-Prospectus so that any of such documents would not include any misstatement of a material fact or omit to state any material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading, the party that discovers such information shall promptly notify the other party hereto and, to the extent required by law, rules or regulations, an appropriate amendment or supplement describing such information shall be promptly filed by Purchaser with the SEC and disseminated by the Company to the stockholders of the Company.

(b) Purchaser shall also take any action required to be taken under any applicable state securities laws in connection with the Merger and each of the Company and Purchaser shall furnish all information concerning it and the holders of Company Common Stock as may be reasonably requested in connection with any such action.

(c) Prior to the Effective Time, Purchaser shall notify or file an application with The Nasdaq Stock Market LLC of the additional shares of Purchaser Common Stock to be issued by Purchaser in exchange for the shares of Company Common Stock.

5.10 Notification of Certain Matters. Each party shall give prompt notice to the other of: (i) any event or notice of, or other communication relating to, a default or event that, with notice or lapse of time or both, would become a default, received by it or any of its Subsidiaries subsequent to the date of this Agreement and prior to the Effective Time, under any

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contract material to the financial condition, properties, businesses or results of operations of each party and its Subsidiaries taken as a whole to which each party or any Subsidiary is a party or is subject; and (ii) any event, condition, change or occurrence that individually or in the aggregate has, or that, so far as reasonably can be foreseen at the time of its occurrence, is reasonably likely to result in a Material Adverse Effect. Each of the Company and Purchaser shall give prompt notice to the other party of any notice or other communication from any third party alleging that the consent of such third party is or may be required in connection with any of the transactions contemplated by this Agreement.

5.11 Employee Benefit Matters.

(a) Purchaser shall honor the Company Benefit Plans set forth in the Company’s Disclosure Letter in accordance with the terms of such Company Benefit Plans, except to the extent an alternative treatment is set forth in this Section 5.11 or in Sections 2.11, 2.12 or 2.13 of this Agreement. Following the Effective Time, Purchaser shall maintain or cause to be maintained employee benefit plans and compensation opportunities for the benefit of all Persons who are employees of the Company and its Subsidiaries immediately prior to the Effective Time and whose employment is not specifically terminated at or prior to the Effective Time (a “Continuing Employee”) that, in the aggregate are substantially comparable to the employee benefit and compensation opportunities that are generally made available to similarly situated employees of Purchaser or its Subsidiaries; provided, however, in no event shall any Continuing Employee be eligible to participate in any frozen plan of Purchaser or its Subsidiaries.

(b) At the sole discretion of Purchaser, Purchaser may maintain the Company’s health and welfare plans through the end of the calendar year in which the Effective Time occurs. Notwithstanding the foregoing, if Purchaser determines to terminate one or more of Company’s health and/or welfare plans, then, at the request of Purchaser made at least thirty (30) days prior to the Effective Time, the Company shall adopt resolutions, to the extent required, providing that one or more of the Company’s health and welfare plans (excluding any plans that are mutually agreed to in writing between the parties) will be terminated effective immediately prior to the Effective Time (or such later date as requested by Purchaser in writing or as may be required to comply with any applicable advance notice or other requirements contained in such plans) and shall arrange for termination of all corresponding insurance policies, service agreements and related arrangements effective on the same date to the extent not prohibited by the terms of such arrangements or applicable law. Notwithstanding the foregoing, no coverage of any of the Continuing Employees or their dependents shall terminate under any of the Company’s health and welfare plans prior to the time such Continuing Employees or their dependents, as applicable, become eligible to participate in the health plans, programs and benefits common to all employees of Purchaser and its Subsidiaries and their dependents and, consequently, no Continuing Employee shall experience a gap in coverage. Continuing Employees who become covered under health plans, programs and benefits of Purchaser or any of its Subsidiaries shall receive credit for any co-payments and deductibles paid under the Company’s health plan for the plan year in which coverage commences under Purchaser’s health plan and shall not be subject to any pre-existing conditions under any such plans. Terminated Company employees and qualified beneficiaries will have the right to continued coverage under group health plans of Purchaser in accordance with COBRA.

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(c) Purchaser shall cause each Purchaser Benefit Plan in which Continuing Employees are eligible to participate to take into account for purposes of eligibility and vesting (but not benefit accrual under the Purchaser 401(k) Plan for 2018 employer contributions) under the Purchaser Benefit Plans the service of such employees with Company to the same extent as such service was credited for such purpose by Company; provided, however, that such service shall not be recognized: (i) to the extent that such recognition would result in a duplication of benefits under any of the Purchaser Benefit Plans or (ii) to the extent, at the sole discretion of Purchaser, the cash value of unused paid time-off is paid to Continuing Employees at the Effective Time. The value of each Company employee’s unused paid time-off is set forth in the Company’s Disclosure Letter. This Agreement shall not be construed to limit the ability of Purchaser to terminate the employment of any Company employee or to review any employee benefit plan or program from time to time and to make such changes (including terminating any such plan or program) as Purchaser deems appropriate.

(d) The Company shall take all necessary and appropriate actions to cause the Company 401(k) Plan to be frozen as to future contributions effective immediately prior to the Effective Time and Purchaser shall take all necessary and appropriate actions to allow the Continuing Employees to participate in Purchaser’s 401(k) Plan on the first day immediately following the Effective Time. Alternatively, if requested in writing by Purchaser no later than thirty (30) days prior to Closing, the Company will also take all necessary steps to terminate the Company 401(k) Plan immediately prior to the Effective Time, subject to the occurrence of the Effective Time, and if further requested, shall prepare and submit a request to the IRS for a favorable determination letter on termination. If Purchaser requests that the Company apply for a favorable determination letter, then prior to the Effective Time, Company shall take all such actions as are necessary (determined in consultation with Purchaser) to submit the application for favorable determination letter in advance of the Effective Time, and following the Effective Time, Purchaser shall use its best efforts in good faith to obtain such favorable determination letter as promptly as possible (including, but not limited to, making such changes to the Company 401(k) Plan as may be required by the IRS as a condition to its issuance of a favorable determination letter). Prior to the Effective Time, the Company, and following the Effective Time, Purchaser, will adopt such amendments to the Company 401(k) Plan to effect the provisions of this Section 5.11(d). In the event Purchaser requests the Company to submit an application to the IRS for a determination letter, Company 401(k) Plan participants who are terminated at or after the Closing, but prior to the receipt of the IRS determination letter, may elect to receive a distribution from the Company 401(k) Plan upon termination of their employment. Purchaser shall take any and all actions as may be required to permit Continuing Employees to roll over their account balances in the Company’s 401(k) Plan into Purchaser’s 401(k) Plan.

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(e) Purchaser agrees that each full-time Company employee who is involuntarily terminated by Purchaser (other than for “Cause” as determined by Purchaser) within six months following the Effective Time and who is not covered by a separate severance, change in control or employment agreement shall, upon executing an appropriate release in the form reasonably determined by Purchaser, receive a severance payment equal to two weeks of base pay (at the rate in effect on the termination date) for each year of service at the Company, with a minimum equal to four weeks of base pay and a maximum equal to fifty-two (52) weeks, as determined in accordance with Purchaser’s severance policy. For purposes of calculating the number of years of service, fractional years of service shall be rounded up or down to the nearest full month. For purposes of calculating base pay, Company employees who are paid on an hourly basis shall be deemed to have a base pay equal to the employee’s average weekly compensation over the two months prior to the termination date; provided that, in no event shall an employee’s base pay for this purpose be less than the employee’s base pay with the Company as in effect immediately prior to Closing. For employees whose compensation is determined in whole or in part on the basis of commission income, “base pay” shall include base salary or total hourly wages paid plus commissions earned during the most recent twelve (12) months ended as of the date of termination of employment. Purchaser will offer INB employees whose jobs are eliminated as a result of the Bank Merger priority in applying for open positions within Purchaser and First Interstate Bank. Any employee of the Company who has or is a party to any employment agreement, severance agreement, change in control agreement or any other agreement or arrangement that provides for any payment that may be triggered by a termination, including a termination following the Merger, shall not receive the severance benefits as provided in this Section but will receive the payment specified in such agreement or arrangement.

(f) Purchaser shall honor all obligations under the employment or change in control agreements, the INB Supplemental Executive Retirement Plan Agreement (the “SERP”) and the INB Executive Deferred Compensation Plan, each as set forth in the Company’s Disclosure Letter, except to the extent any such agreement is superseded as of, or following, the Effective Time. Purchaser specifically agrees to assume the SERP and the timing and amount of the payments thereunder will continue to be made in accordance with Section 2.1 of the SERP. For purposes of clarity, it is understood that neither Buyer nor Buyer Bank will terminate the SERP in accordance with Section 8.3 of the SERP and the parties will not accelerate the timing of the payments thereunder.

(g) Purchaser shall establish a retention bonus pool in the amount as provided in Purchaser Disclosure Letter for employees of the Company and its Subsidiaries jointly designated in writing by Purchaser and the Company (other than employees of the Company who are subject to employment contracts or other contracts providing for severance) to help retain key employees; provided, that any retention bonus pool payment is not considered an “excess parachute payment” within the meaning of Section 280G of the IRC or results in any other adverse tax consequence to the Purchaser. The amount and payment date of the retention bonus for each such employee shall be jointly determined in writing by Purchaser and the Company, but in the aggregate shall equal the amount provided in Purchaser Disclosure Letter assuming all such key employees remain with the Purchaser or the Surviving Corporation or an Affiliate to such date or are involuntarily terminated without cause prior to that date.

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(h) Concurrently with the execution of this Agreement, Purchaser, First Interstate Bank, Company and INB shall enter into settlement agreements with each of Russell A. Lee and Holly A. Poquette to be effective as of the Effective Time, and Purchaser and First Interstate Bank shall enter into a consulting and non-competition agreement with Russell A. Lee to be effective as of the Effective Time, each as provided in Purchaser Disclosure Letter.

(i) Purchaser shall provide all employees of the Company and its Subsidiaries whose employment was terminated other than for cause, disability or retirement at or following the Effective Time, and who so desires, job counseling and outplacement assistance services, in which it shall assist such employees in locating new employment and shall notify all such employees who want to be so notified of opportunities for positions with Purchaser or any of its Subsidiaries for which Purchaser reasonably believes such persons are qualified and shall consider any application for such positions submitted by such persons, provided, however, that any decision to offer employment to any such person shall be made in the sole discretion of Purchaser.

5.12 Indemnification.

(a) From and after the Effective Time, Purchaser shall indemnify and hold harmless each of the current or former directors, officers or employees of the Company or any of its Subsidiaries (each, an “Indemnified Party”), and any person who becomes an Indemnified Party between the date hereof and the Effective Time, against any costs or expenses (including reasonable attorneys’ fees and expenses), judgments, fines, losses, claims, damages or liabilities and amounts paid in settlement incurred in connection with any actual or threatened claim, action, suit, proceeding or investigation, whether civil, criminal, administrative or investigative, arising out of matters existing or occurring at or prior to the Effective Time, whether asserted or claimed prior to, at or after the Effective Time, based in whole or in part on, or arising in whole or in part out of, or pertaining to (i) the fact that he or she is or was a director, officer or employee of the Company, any of its Subsidiaries or any of their respective predecessors or was prior to the Effective Time serving at the request of any such party as a director, officer, employee, trustee or partner of another corporation, partnership, trust, joint venture, employee benefit plan or other entity or (ii) any matters arising in connection with the transactions contemplated by this Agreement, to the fullest extent such Person would have been indemnified or have the right to advancement of expenses pursuant to the Company’s Articles of Incorporation and Bylaws as in effect on the date of this Agreement and as permitted by applicable law, and Purchaser and the Surviving Corporation shall also advance expenses as incurred to the fullest extent permitted under applicable law, provided that the Person to whom expenses are advanced provides an undertaking to repay such advances if it is ultimately determined by a court of competent jurisdiction that such Person is not entitled to indemnification.

(b) Any Indemnified Party wishing to claim indemnification under Section 5.12(a), upon learning of any action, suit, proceeding or investigation described above, shall promptly notify Purchaser thereof. Any failure to so notify shall not affect the obligations of Purchaser under Section 5.12(a) unless and to the extent that Purchaser is actually prejudiced as a result of such failure.

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(c) For a period of six (6) years following the Effective Time, Purchaser shall maintain in effect the Company’s current directors’ and officers’ liability insurance covering each Person currently covered by the Company’s directors’ and officers’ liability insurance policy with respect to claims against such Persons arising from facts or events occurring at or prior to the Effective Time; provided, however, that in no event shall Purchaser be required to expend in the aggregate pursuant to this Section 5.12(c) more than 200% of the annual premium currently paid by the Company for such insurance and, if Purchaser is unable to maintain such policy as a result of this proviso, Purchaser shall obtain as much comparable insurance as is available by payment of such time; provided further, that Purchaser may (i) request that the Company obtain an extended reporting period endorsement under the Company’s existing directors’ and officers’ liability insurance policy or (ii) substitute therefor “tail” policies the material terms of which, including coverage and amount, are no less favorable in any material respect to such Person than the Company’s existing insurance policies as of the date hereof.

(d) If Purchaser or any of its successors or assigns (i) consolidates with or merges into any other person or entity and shall not be the continuing or surviving corporation or entity of such consolidation or merger or (ii) liquidates, dissolves, transfers or conveys all or substantially all of its properties and assets to any person or entity, then, and in each such case, to the extent necessary, proper provision shall be made so that such successor and assign of Purchaser and its successors and assigns assume the obligations set forth in this Section 5.12.

(e) The provisions of this Section 5.12 are intended to be for the benefit of, and shall be enforceable by, each Indemnified Party and his or her representatives.

(f) Any indemnification payments made pursuant to this Section 5.12 are subject to and conditioned upon their compliance with Section 18(k) of the Federal Deposit Insurance Act (12 U.S.C. 1828(k)) and the regulations promulgated thereunder by the Federal Deposit Insurance Corporation (12 C.F.R. Part 359).

5.13 Stockholder Litigation. The Company shall give Purchaser the opportunity to participate at Purchaser’s own expense in the defense or settlement of any stockholder litigation against the Company and/or its directors relating to the transactions contemplated by this Agreement, and no such settlement shall be agreed to without Purchaser’s prior written consent (such consent not to be unreasonably withheld or delayed).

5.14 Disclosure Supplements. From time to time prior to the Effective Time, the Company and Purchaser will promptly supplement or amend their respective Disclosure Letters delivered in connection herewith with respect to any matter hereafter arising that, if existing, occurring or known at the date of this Agreement, would have been required to be set forth or described in such Disclosure Letters or that is necessary to correct any information in such Disclosure Letters that has been rendered materially inaccurate thereby. No supplement or amendment to such Disclosure Letters shall have any effect for the purpose of determining satisfaction of the conditions set forth in Article VI.

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5.15 Assumption of Northwest Bancorporation Capital Trust I Preferred Securities. Purchaser agrees that, effective with the Effective Time, it shall assume the Northwest Bancorporation Capital Trust I trust preferred securities, and all of the Company obligations under the related indentures, and shall take all actions necessary or appropriate in accordance therewith, including, if requested by the trustee, execution of a supplemental indenture and other appropriate documents or certificates.

ARTICLE VI

CONDITIONS TO CONSUMMATION

6.1 Conditions to Each Party’s Obligations. The respective obligations of each party to effect the Merger shall be subject to the satisfaction of the following conditions:

(a) Stockholder Approval. This Agreement shall have been approved by the requisite vote of the Company’s stockholders in accordance with applicable laws and regulations.

(b) Regulatory Approvals. All approvals, consents or waivers of any Governmental Entity required to permit consummation of the transactions contemplated by this Agreement, including the Merger and the Bank Merger, shall have been obtained and shall remain in full force and effect, and all statutory waiting periods shall have expired or been terminated.

(c) No Injunctions or Restraints; Illegality. No party hereto shall be subject to any order, decree or injunction of a court or agency of competent jurisdiction that enjoins or prohibits the consummation of the Merger or the Bank Merger and no Governmental Entity shall have instituted any proceeding for the purpose of enjoining or prohibiting the consummation of the Merger, the Bank Merger or any transactions contemplated by this Agreement. No statute, rule or regulation shall have been enacted, entered, promulgated or enforced by any Governmental Entity that prohibits or makes illegal consummation of the Merger or the Bank Merger.

(d) Third Party Consents. Purchaser and the Company shall have obtained the consent or approval of each Person (other than the governmental approvals or consents referred to in Section 6.1(b)) whose consent or approval shall be required to consummate the transactions contemplated by this Agreement, except those for which failure to obtain such consents and approvals would not, individually or in the aggregate, have a Material Adverse Effect on Purchaser (after giving effect to the consummation of the transactions contemplated hereby).

(e) Registration Statement; Blue Sky Laws. The Registration Statement shall have been declared effective by the SEC and no proceedings shall be pending or threatened by the SEC to suspend the effectiveness of the Registration Statement, and Purchaser shall have received all required approvals by state securities or “blue sky” authorities with respect to the transactions contemplated by this Agreement.

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(f) Nasdaq. Purchaser shall have filed with The Nasdaq Stock Market LLC a notification form or application, as applicable, for the listing of all shares of Purchaser Common Stock to be delivered as Merger Consideration, and The Nasdaq Stock Market LLC shall not have objected to the listing of such shares of Purchaser Common Stock.

(g) Tax Opinion. Purchaser and the Company shall have received written opinions of Luse Gorman, PC and Witherspoon Kelley, respectively, dated as of the Closing Date, in form and substance customary in transactions of the type contemplated hereby, and reasonably satisfactory to Purchaser and the Company, as the case may be, substantially to the effect that on the basis of the facts, representations and assumptions set forth in such opinions, which are consistent with the state of facts existing at the Effective Time, (i) the Merger will be treated for federal income tax purposes as a reorganization within the meaning of Section 368(a) of the IRC and (ii) Purchaser and the Company will each be a party to that reorganization within the meaning of Section 368(b) of the IRC. Such opinions may be based on, in addition to the review of such matters of fact and law as counsel considers appropriate, representations contained in certificates of officers of Purchaser, the Company and others.

6.2 Conditions to the Obligations of Purchaser. The obligations of Purchaser to effect the Merger shall be further subject to the satisfaction of the following additional conditions, any one or more of which may be waived by Purchaser:

(a) The Company’s Representations and Warranties. Subject to the standard set forth in Section 3.1, each of the representations and warranties of the Company contained in this Agreement and in any certificate or other writing delivered by the Company pursuant hereto shall be true and correct at and as of the Closing Date as though made at and as of the Closing Date, except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date.

(b) Performance of the Company’s Obligations. The Company shall have performed in all material respects all obligations and covenants required to be performed by it under this Agreement at or prior to the Effective Time.

(c) Officers’ Certificate. Purchaser shall have received a certificate signed by the chief executive officer and the chief financial or principal accounting officer of the Company to the effect that the conditions set forth in Sections 6.2(a) and (b) have been satisfied.

(d) No Material Adverse Effect. Since the date of this Agreement, there shall not have occurred any Material Adverse Effect with respect to the Company.

(e) Burdensome Condition. None of the approvals, consents or waivers of any Governmental Entity required to permit consummation of the transactions contemplated by this Agreement shall contain any condition or requirement that would so materially and adversely impact the economic or business benefits to Purchaser of the transactions contemplated hereby that, had such condition or requirement been known, Purchaser would not, in its reasonable judgment, have entered into this Agreement.

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(f) Dissenting Shares. As of immediately prior to the Effective Time, not more than 10.0% of the issued and outstanding shares of Company Common Stock shall have perfected their right to dissent under the WBCA in accordance with Section 2.6 herein.

6.3 Conditions to the Obligations of the Company. The obligations of the Company to effect the Merger shall be further subject to the satisfaction of the following additional conditions, any one or more of which may be waived by the Company:

(a) Purchaser’s Representations and Warranties. Subject to the standard set forth in Section 3.1, each of the representations and warranties of Purchaser contained in this Agreement and in any certificate or other writing delivered by Purchaser pursuant hereto shall be true and correct at and as of the Closing Date as though made at and as of the Closing Date, except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date.

(b) Performance of Purchaser’s Obligations. Purchaser shall have performed in all material respects all obligations and covenants required to be performed by it under this Agreement at or prior to the Effective Time.

(c) Officers’ Certificate. The Company shall have received a certificate signed by the chief executive officer and the chief financial or principal accounting officer of Purchaser to the effect that the conditions set forth in Sections 6.3(a) and (b) have been satisfied.

(d) No Material Adverse Effect. Since the date of this Agreement, there shall not have occurred any Material Adverse Effect with respect to Purchaser.

ARTICLE VII

TERMINATION

7.1 Termination. This Agreement may be terminated, and the Merger abandoned, at any time prior to the Effective Time, by action taken or authorized by the Board of Directors of the terminating party, either before or after any requisite stockholder approval:

(a) by the mutual written consent of Purchaser and the Company; or

(b) by either Purchaser or the Company, in the event of the failure of the Company’s stockholders to approve the Agreement at the Company Stockholder Meeting; provided, however, that the Company shall only be entitled to terminate the Agreement pursuant to this clause if it has complied in all material respects with its obligations under Section 5.8 (subject to Section 5.8(b));

(c) by either Purchaser or the Company, if either (i) any approval, consent or waiver of a Governmental Entity required to permit consummation of the transactions contemplated by this Agreement shall have been denied and such denial has become final and non-appealable or (ii) any court or other Governmental Entity of competent jurisdiction shall have issued a final, unappealable order enjoining or otherwise prohibiting consummation of the transactions contemplated by this Agreement;

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(d) by either Purchaser or the Company, if the Merger is not consummated by January 31, 2019, unless the failure to so consummate by such time is due to the failure of the party seeking to terminate this Agreement to perform or observe the covenants and agreements of such party set forth herein;

(e) by either Purchaser or the Company (provided that the party seeking termination is not then in material breach of any representation, warranty, covenant or other agreement contained herein), in the event of a breach of any covenant or agreement on the part of the other party set forth in this Agreement, or if any representation or warranty of the other party shall have become untrue, in either case such that the conditions set forth in Sections 6.2(a) and (b) or Sections 6.3(a) and (b), as the case may be, would not be satisfied and such breach or untrue representation or warranty has not been or cannot be cured within thirty (30) days following written notice to the party committing such breach or making such untrue representation or warranty;

(f) by Purchaser, if (i) the Company shall have breached its obligations under Section 5.1 or Section 5.8 in any material respect or (ii) if the Board of Directors of the Company does not publicly recommend in the Proxy Statement-Prospectus that stockholders approve and adopt this Agreement or if, after recommending in the Proxy Statement-Prospectus that stockholders approve and adopt this Agreement, the Board of Directors effects a Change of Recommendation;

(g) by the Company, at any time prior to the adoption and approval of this Agreement by the Company’s stockholders, to enter into an agreement with respect to a Superior Proposal, but only if (i) the Company’s Board of Directors has determined in good faith based on the advice of legal counsel that failure to take such action would cause the Board of Directors to violate its fiduciary duties under applicable law, and (ii) the Company has not breached its obligations under Section 5.1.

(h) by the Company, at any time during the five-day period commencing with the Determination Date, if both of the following conditions are satisfied:

(i) The number obtained by dividing the Average Closing Price by the Starting Price (the “Purchaser Ratio”) shall be less than 0.80; and

(ii) (x) the Purchaser Ratio shall be less than (y) the number obtained by dividing the Index Ratio (each as defined below) and subtracting 0.20 from the quotient in this clause (ii) (y);

subject, however, to the following three sentences. If the Company elects to exercise its termination right pursuant to this Section 7.1(h), it shall give written notice to Purchaser (provided that such notice of election to terminate may be withdrawn at any time within the aforementioned five-day period). During the five-day period commencing with its receipt of such notice, Purchaser shall have the option to increase the consideration to be received by the holders

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of Company Common Stock, Company Options and Company Warrants hereunder, by adjusting the Exchange Ratio (calculated to the nearest one ten-thousandth) to equal a quotient of (A) the product of the Starting Price, 0.80 and the Exchange Ratio, divided by (B) the Average Closing Price. If Purchaser so elects within such five-day period, it shall give prompt written notice to the Company of such election and the revised Exchange Ratio, whereupon no termination shall have occurred pursuant to this Section 7.1(h) and this Agreement shall remain in effect in accordance with its terms (except as the Exchange Ratio shall have been so modified).

For purposes of this Section 7.1(h) the following terms shall have the meanings indicated:

“Final Index Price” shall mean the average of the Index Prices for the twenty (20) consecutive full trading days ending on the Determination Date.

“Index Price” shall mean $113.13, which is the closing price on the Starting Date for the KBW Regional Banking Index.

“Index Ratio” shall mean the Final Index Price divided by the Index Price.

“Starting Date” shall mean the third trading day prior to the date of the first public announcement of entry into this Agreement.

“Starting Price” shall mean $40.00, which is the closing price of a share of Purchaser Common Stock on The Nasdaq Stock Market, LLC (as reported in The Wall Street Journal, or if not reported therein, in another authoritative source) on the Starting Date.

7.2 Termination Fee; Expenses.

(a) In the event of termination of this Agreement by the Company pursuant to Section 7.1(g), the Company shall make payment to Purchaser of a termination fee of $5,076,204.

(b) In the event of termination of this Agreement by Purchaser pursuant to Section 7.1(f), so long as at the time of such termination Purchaser is not in material breach of any representation, warranty or material covenant contained herein, the Company shall make payment to Purchaser of a termination fee of $5,076,204.

(c) If (i) this Agreement is terminated (A) by either party pursuant to Section 7.1(b) or (B) by Purchaser pursuant to Section 7.1(e) and the breach giving rise to such termination was knowing or intentional, and (ii) at the time of such termination Purchaser is not in material breach of any representation, warranty or material covenant contained herein, and (iii) prior to the Company Stockholder Meeting (in the case of termination pursuant to Section 7.1(b)) or the date of termination (in the case of termination pursuant to Section 7.1(e)), an Acquisition Proposal has been publicly announced, disclosed or communicated and (iv) within twelve (12) months of such termination the Company shall consummate or enter into any agreement with respect to the Acquisition Proposal set forth in clause (iii) of this Section 7.2(c), then the Company shall make payment to Purchaser of a termination fee of $5,076,204.

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(d) The fee payable pursuant to Section 7.2(a) or (b) shall be made by wire transfer of immediately available funds at the time of termination. Any fee payable pursuant to Section 7.2(c) shall be made by wire transfer of immediately available funds within two (2) Business Days after notice of demand for payment. The Company and Purchaser acknowledge that the agreements contained in this Section 7.2 are an integral part of the transactions contemplated by this Agreement, and that, without these agreements, Purchaser would not enter into this Agreement. The amount payable by the Company pursuant to Sections 7.2(a), (b) or (c) constitutes liquidated damages and not a penalty and shall be the sole remedy of Purchaser in the event of termination of this Agreement on the bases specified in such sections.

7.3 Effect of Termination. In the event of termination of this Agreement by either Purchaser or the Company as provided in Section 7.1, this Agreement shall forthwith become void and, subject to Section 7.2, have no effect, and there shall be no liability on the part of any party hereto or their respective officers and directors, except that (i) Sections 5.3(c), 7.2 and 8.6, shall survive any termination of this Agreement, and (ii) notwithstanding anything to the contrary contained in this Agreement, no party shall be relieved or released from any liabilities or damages arising out of its fraud or willful and material breach of any provision of this Agreement.

ARTICLE VIII

CERTAIN OTHER MATTERS

8.1 Interpretation. When a reference is made in this Agreement to Sections or Exhibits such reference shall be to a Section of, or Exhibit to, this Agreement unless otherwise indicated. The table of contents and headings contained in this Agreement are for ease of reference only and shall not affect the meaning or interpretation of this Agreement. Whenever the words “include,” “includes” or “including” are used in this Agreement, they shall be deemed followed by the words “without limitation.” Any singular term in this Agreement shall be deemed to include the plural, and any plural term the singular. Any reference to gender in this Agreement shall be deemed to include any other gender.

8.2 Survival. Only those agreements and covenants of the parties that are by their terms applicable in whole or in part after the Effective Time, including Section 5.12 of this Agreement, shall survive the Effective Time. All other representations, warranties, agreements and covenants shall be deemed to be conditions of the Agreement and shall not survive the Effective Time.

8.3 Waiver; Amendment. Prior to the Effective Time, any provision of this Agreement may be: (i) waived in writing by the party benefited by the provision or (ii) amended or modified at any time (including the structure of the transaction) by an agreement in writing between the parties hereto except that, after the vote by the stockholders of the Company, no amendment or modification may be made that would reduce the amount or alter or change the kind of consideration to be received by holders of Company Common Stock or that would contravene any provision of the MBCA or the applicable state and federal banking laws, rules and regulations.

8.4 Counterparts. This Agreement may be executed in counterparts each of which shall be deemed to constitute an original, but all of which together shall constitute one and the same instrument. A facsimile or other electronic copy of a signature page shall be deemed to be an original signature page.

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8.5 Governing Law. This Agreement shall be governed by, and interpreted in accordance with, the laws of the State of Montana, without regard to conflicts of laws principles.

8.6 Expenses. Each party hereto will bear all expenses incurred by it in connection with this Agreement and the transactions contemplated hereby.

8.7 Notices. All notices and other communications in connection with this Agreement shall be in writing and shall be deemed given if delivered personally, sent via facsimile (with confirmation), by email, by registered or certified mail (return receipt requested) or by commercial overnight delivery service, or delivered by an express courier (with confirmation) to the parties at the following addresses (or at such other address for a party as shall be specified by like notice):

If to Purchaser, to:

First Interstate BancSystem, Inc.

401 North 31^st Street

Billings, Montana 59116

Facsimile:        (406) 255-5350

Attention:        Kevin P. Riley

                         President and Chief Executive Officer

Email:             Kevin.Riley@fib.com

With copies to:

First Interstate BancSystem, Inc.

401 North 31^st Street

Billings, Montana 59116

Facsimile:        (406) 255-5350

Attention:        Kirk D. Jensen

                         General Counsel

Email:             Kirk.Jensen@fib.com

Luse Gorman, PC

5335 Wisconsin Avenue, NW, Suite 780

Washington, DC 20015

Facsimile:        (202) 362-2902

Attention:        Scott A. Brown

                         Lawrence M.F. Spaccasi

Email:             sbrown@luselaw.com

                         lspaccasi@luselaw.com

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If to the Company, to:

Northwest Bancorporation, Inc.

421 W. Riverside Avenue, Suite 113

Spokane, Washington 99201

Facsimile:        (509) 850-3524

Attention:        Russell A. Lee

                         President and Chief Executive Officer

Email:             ralee@inb.com

With copies to:

Witherspoon Kelley

422 W. Riverside Avenue, Suite 1100

Spokane, Washington 99201

Facsimile:        (509) 458-2728

Attention:        Richard A. Repp

Email:              rar@witherspoonkelley.com

8.8 Entire Agreement; etc. This Agreement, together with the Exhibits and Disclosure Letters hereto, represents the entire understanding of the parties hereto with reference to the transactions contemplated hereby and supersedes any and all other oral or written agreements heretofore made. Except for Section 5.12, which confers rights on the parties described therein, nothing in this Agreement is intended to confer upon any other person any rights or remedies of any nature whatsoever under or by reason of this Agreement, including the right to rely upon the representations and warranties set forth herein. The representations and warranties in this Agreement are the product of negotiations among the parties hereto and are for the sole benefit of the parties. Any inaccuracies in such representations and warranties are subject to waiver by the parties hereto in accordance herewith without notice or liability to any other person. In some instances, the representations and warranties in this Agreement may represent an allocation among the parties hereto of risks associated with particular matters regardless of the Knowledge of any of the parties hereto. Consequently, Persons other than the parties may not rely upon the representations and warranties in this Agreement as characterizations of actual facts or circumstances as of the date of this Agreement or as of any other date.

8.9 Successors and Assigns; Assignment. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns; provided, however, that this Agreement may not be assigned by either party hereto without the prior written consent of the other party.

8.10 Severability. If any one or more provisions of this Agreement shall for any reason be held invalid, illegal or unenforceable in any respect, by any court of competent jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provisions of this Agreement and the parties shall use their reasonable efforts to substitute a valid, legal and enforceable provision which, insofar as practical, implements the purposes and intents of this Agreement.

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8.11 Specific Performance. The parties hereto agree that irreparable damage would occur if any provision of this Agreement were not performed in accordance with the terms hereof and, accordingly, that the parties shall be entitled to seek an injunction or injunctions to prevent breaches of this Agreement or to enforce specifically the performance of the terms and provisions hereof (including the parties’ obligation to consummate the Merger), in addition to any other remedy to which they are entitled at law or in equity. Each of the parties hereby further waives (a) any defense in any action for specific performance that a remedy at law would be adequate and (b) any requirement under any law to post security or a bond as a prerequisite to obtaining equitable relief.

8.12 Waiver of Jury Trial. EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY THAT MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW AT THE TIME OF INSTITUTION OF THE APPLICABLE LITIGATION, ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT: (I) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER, (II) EACH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (III) EACH PARTY MAKES THIS WAIVER VOLUNTARILY, AND (IV) EACH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 8.12.

8.13 Delivery by Facsimile or Electronic Transmission. This Agreement and any signed agreement or instrument entered into in connection with this Agreement, and any amendments or waivers hereto or thereto, to the extent signed and delivered by means of a facsimile machine or by e-mail delivery of a “.pdf” format data file, shall be treated in all manner and respects as an original agreement or instrument and shall be considered to have the same binding legal effect as if it were the original signed version thereof delivered in Person. No party hereto or to any such agreement or instrument shall raise the use of a facsimile machine or e-mail delivery of a “.pdf” format data file to deliver a signature to this Agreement or any amendment hereto or the fact that any signature or agreement or instrument was transmitted or communicated through the use of a facsimile machine or e-mail delivery of a “.pdf” format data file as a defense to the formation of a contract and each party hereto forever waives any such defense.

[Signature page follows]

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In Witness Whereof, the parties hereto have caused this Agreement and Plan of Merger to be executed by their duly authorized officers as of the date first above written.

First Interstate BancSystem, Inc.
By:	/s/ Kevin P. Riley
	Kevin P. Riley
	President and Chief Executive Officer
Northwest Bancorporation, Inc.
By:	/s/ Russell A. Lee
	Russell A. Lee
	President and Chief Executive Officer

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EXHIBIT A

FORM OF

NORTHWEST BANCORPORATION, INC. VOTING AGREEMENT

This Voting Agreement (this “Agreement”), dated as of April 25, 2018, is entered into by and between First Interstate BancSystem, Inc., a Montana corporation (“Purchaser”) and the undersigned (the “Shareholder”), a shareholder of Northwest Bancorporation, Inc., a Washington corporation (the “Company”).

WHEREAS, subject to the terms and conditions of the Agreement and Plan of Merger (as the same may be amended, supplemented or modified, the “Merger Agreement”), dated as of the date hereof, between Purchaser and the Company, the Company will be merged with and into Purchaser, with Purchaser as the surviving corporation (the “Merger”);

WHEREAS, as of the date of this Agreement, the Shareholder owns beneficially or of record, and has the power to vote or direct the voting of, certain shares of common stock, having no par value, of the Company (“Common Stock”) (all such shares, the “Existing Shares”); and

WHEREAS, as a condition and inducement for Purchaser to enter into the Merger Agreement, Purchaser has required that the Shareholder, in his, her or its capacity as a shareholder of the Company, enter into this Agreement, and the Shareholder has agreed to enter into this Agreement.

NOW THEREFORE, in consideration of the foregoing, the mutual covenants and agreements set forth herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1. Definitions. Capitalized terms not defined in this Agreement have the meaning assigned to those terms in the Merger Agreement. The following definitions also apply to this Agreement:

a. Term. “Term” means the period of time beginning on the Closing Date and ending two (2) years after the Closing Date.

b. Beneficial Ownership. For purposes of this Agreement, the terms “beneficial owner” and “beneficially own” shall have the meaning set forth in Rule 13d-3 promulgated by the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

2. Effectiveness; Termination. This Agreement shall be effective upon signing. If the Merger Agreement is terminated for any reason in accordance with its terms, this Agreement shall automatically terminate and be null and void and of no effect as of the date of the termination of the Merger Agreement; provided that (i) this Section 2, Section 3 and Sections 9 through 14 hereof shall survive any such termination and (ii) such termination shall not relieve any party of any liability or damages resulting from any willful or material breach of any of its representations, warranties, covenants or other agreements set forth herein.

3. Confidential Information. During the Term, the Shareholder shall not use or disclose any confidential information of Purchaser or the Company obtained by such person while serving as a director or officer of the Company except to the extent such disclosure is required by a judicial or other governmental order. For purposes of this Agreement, “confidential information” means any information and material of or relating to Purchaser or the Company or any of their subsidiaries that is non-public or confidential, including proprietary information and trade secrets, and any and all information disclosed to or known by the Shareholder as a consequence of his or her employment or service as a director or officer with the Company that is not generally known outside the Company, but does not include (a) information that is or becomes generally available to the public other than as a result of an unauthorized disclosure; (b) information that was in the Shareholder’s possession prior to serving as a director or officer or information received by the Shareholder from another person without any limitations on disclosure, but only if the Shareholder had no reason to believe that the other person was prohibited from using or disclosing such information by a contractual or fiduciary obligation; or (c) information that was independently developed by the Shareholder without using or referencing any confidential information of Purchaser or the Company.

4. Voting Agreement. From the date hereof until the earlier of (a) the final adjournment of the Company Shareholder Meeting or (b) the termination of this Agreement in accordance with its terms (the “Support Period”), the Shareholder irrevocably and unconditionally hereby agrees, that at any meeting (whether annual or special and each adjourned or postponed meeting) of the Company’s shareholders, however called, or in connection with any written consent of the Company’s shareholders, the Shareholder shall (i) appear at such meeting or otherwise cause all of his, her or its Existing Shares and all other shares of Common Stock or voting securities of the Company over which such Shareholder has acquired beneficial or record ownership after the date hereof and has the power to vote or direct the voting of (including any shares of Common Stock acquired by means of purchase, dividend or distribution, or issued upon the exercise of any stock options to acquire Common Stock or the conversion of any convertible securities, or pursuant to any other equity awards or derivative securities (including any Company Stock Options) or otherwise) (together with the Existing Shares, the “Shares”), which such Shareholder owns or controls as of the applicable record date, to be counted as present thereat for purposes of calculating a quorum, and (ii) vote or cause to be voted (including by proxy or written consent, if applicable) all such Shares (A) in favor of the approval of the Merger Agreement and the approval of the transactions contemplated thereby, including the Merger, (B) in favor of any proposal to adjourn or postpone such meeting of the Company’s shareholders to a later date if there are not sufficient votes to approve the Merger Agreement, (C) against any action or proposal in favor of an Acquisition Proposal, without regard to the terms of such Acquisition Proposal, and (D) against any action, proposal, transaction or agreement that would reasonably be likely to (1) result in a breach of any covenant, representation or warranty or any other obligation

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or agreement of the Company contained in the Merger Agreement, or of the Shareholder contained in this Agreement, or (2) prevent, impede, interfere with, delay, postpone, discourage or frustrate the purposes of or adversely affect the consummation of the transactions contemplated by the Merger Agreement, including the Merger; provided, that the foregoing applies solely to the Shareholder in his or her capacity as a shareholder and, Shareholder makes no agreement or understanding in this Agreement in Shareholder’s capacity as a director or officer of the Company or any of its subsidiaries (if Shareholder holds such office), and nothing in this Agreement: (a) will limit or affect any actions or omissions taken by Shareholder in Shareholder’s capacity as such a director or officer, including in exercising rights under the Merger Agreement, and no such actions or omissions shall be deemed a breach of this Agreement; or (b) will be construed to prohibit, limit or restrict Shareholder from exercising Shareholder’s fiduciary duties as an officer or director to the Company or its shareholders. For the avoidance of doubt, the foregoing commitments apply to any Shares held by any trust, limited partnership or other entity holding Shares for which the Shareholder serves in any partner, shareholder or trustee capacity. To the extent the Shareholder does not control, by himself, herself or itself, the determinations of such shareholder entity, the Shareholder agrees to exercise all voting or other determination rights such Shareholder has in such shareholder entity to carry out the intent and purposes of his, her or its support and voting obligations in this paragraph and otherwise set forth in this Agreement. The Shareholder covenants and agrees that, except for this Agreement, such Shareholder (x) has not entered into, and shall not enter into during the Support Period, any voting agreement or voting trust with respect to the Shares and (y) has not granted, and shall not grant during the Support Period, a proxy, consent or power of attorney with respect to the Shares except any proxy to carry out the intent of this Agreement. The Shareholder agrees not to enter into any agreement or commitment with any person the effect of which would be inconsistent with or otherwise violate the provisions and agreements set forth herein.

5. Transfer Restrictions Prior to the Merger. The Shareholder hereby agrees that such Shareholder will not, during the Support Period, without the prior written consent of Purchaser, directly or indirectly, offer for sale, sell, transfer, assign, give, tender in any tender or exchange offer, pledge, encumber, hypothecate or similarly dispose of (by merger, by testamentary disposition, by operation of law or otherwise), either voluntarily or involuntarily, enter into any swap or other arrangements that transfers to another, in whole or in part, any of the economic consequences of ownership of, enter into any contract, option or other arrangement or understanding with respect to the sale, transfer, assignment, pledge, encumbrance, hypothecation or other disposition of (by merger, by testamentary disposition, by operation of law or otherwise) or otherwise convey or dispose of, any of the Shares, or any interest therein, including the right to vote any Shares, as applicable (a “Transfer”); provided, that the Shareholder may (i) Transfer Shares pursuant to any currently existing pledge agreement or for estate planning or philanthropic purposes so long as the transferee, prior to the date of Transfer, agrees in a signed writing to be bound by and comply with the provisions of this Agreement and the Shareholder provides at least two (2) days’ prior written notice (which shall include the written consent of the transferee agreeing to be bound by and comply with the provisions

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of this Agreement), in which case the Shareholder shall remain jointly and severally liable for any breach of this Agreement by such transferee, (ii) bequeath Shares by will or operation of law, in which case this Agreement shall bind the transferee, (iii) surrender Shares to the Company in connection with the vesting, settlement or exercise of Company equity awards to satisfy any withholding for the payment of taxes incurred in connection with such vesting, settlement or exercise, or, in respect of the Company equity awards, the exercise price thereon, or (iv) Transfer Shares as is otherwise permitted by Purchaser in its sole discretion.

6. Representations of the Shareholder. The Shareholder represents and warrants to Purchaser as follows: (a) the Shareholder has full legal right, capacity and authority to execute and deliver this Agreement, to perform the Shareholder’s obligations hereunder and to consummate the transactions contemplated hereby; (b) this Agreement has been duly and validly executed and delivered by the Shareholder and, assuming the due authorization, execution and delivery of this Agreement by Purchaser, constitutes a valid and legally binding agreement of the Shareholder, enforceable against the Shareholder in accordance with its terms, and no other action is necessary to authorize the execution and delivery of this Agreement by the Shareholder or the performance of his or her obligations hereunder; (c) the execution and delivery of this Agreement by the Shareholder does not, and the consummation of the transactions contemplated hereby and the compliance with the provisions hereof will not, conflict with or violate any law or result in any breach of or violation of, or constitute a default (or an event that with notice or lapse of time or both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of a Lien on any of the Shares pursuant to, any agreement or other instrument or obligation binding upon the Shareholder or the Shares (including under the articles of incorporation and bylaws of the Company), nor require any authorization, consent or approval of, or filing with, any Governmental Entity; (d) the Shareholder beneficially owns (as such term is used in Rule 13d-3 of the Exchange Act) and has the power to vote or direct the voting of the Shares, and the number of such Shares as of the date of this Agreement is identified on the signature page hereto; (e) the Shareholder beneficially owns the Shares free and clear of any proxy, voting restriction, adverse claim or other Lien (other than any restrictions created by this Agreement or under applicable federal or state securities laws); and (f) the Shareholder has read and is familiar with the terms of the Merger Agreement. The Shareholder agrees that the Shareholder shall not take any action that would make any representation or warranty of the Shareholder contained herein untrue or incorrect or have the effect of preventing, impairing, delaying or adversely affecting the performance by the Shareholder of his or her obligations under this Agreement. The Shareholder agrees, without further consideration, to execute and deliver such additional documents and to take such further actions as are necessary or reasonably requested by Purchaser to confirm and assure the rights and obligations set forth in this Agreement.

7. Publicity. The Shareholder hereby authorizes Purchaser and the Company to publish and disclose in any announcement or disclosure in connection with the Merger, including in the Registration Statement, the Proxy Statement-Prospectus or any other filing with any

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Governmental Entity made in connection with the Merger, the Shareholder’s identity and ownership of the Shares and the nature of the Shareholder’s obligations under this Agreement. The Shareholder agrees to notify Purchaser as promptly as practicable of any inaccuracies or omissions in any information relating to the Shareholder that is so published or disclosed.

8. Entire Agreement; Assignment. The recitals are incorporated as a part of this Agreement. This Agreement and the Merger Agreement constitute the entire agreement among the parties with respect to the subject matter hereof and supersedes all other prior agreements and understandings, both written and oral, among the parties with respect to the subject matter hereof, other than, if the Shareholder is an officer of the Company, with respect to any employment, non-competition or consulting agreement between the Shareholder and the Company or its affiliates. Nothing in this Agreement, express or implied, is intended to or shall confer upon any person not a party to this Agreement any right, benefit or remedy of any nature whatsoever under or by reason of this Agreement. This Agreement shall not be assigned by operation of law or otherwise and shall be binding upon and inure solely to the benefit of each party hereto; provided, however, that the rights under this Agreement are assignable by Purchaser to a majority-owned affiliate or any successor-in-interest of Purchaser, but no such assignment shall relieve Purchaser of its obligations hereunder.

9. Remedies/Specific Enforcement. Each of the parties hereto agrees that this Agreement is intended to be legally binding and specifically enforceable pursuant to its terms and that Purchaser would be irreparably harmed if any of the provisions of this Agreement are not performed in accordance with its specific terms and that monetary damages would not provide adequate remedy in such event. Accordingly, in the event of any breach or threatened breach by the Shareholder of any covenant or obligation contained in this Agreement, in addition to any other remedy to which Purchaser may be entitled (including monetary damages), Purchaser shall be entitled to seek injunctive relief to prevent breaches or threatened breaches of this Agreement and to specifically enforce the terms and provisions hereof, and the Shareholder hereby waives any defense in any action for specific performance or an injunction or other equitable relief that a remedy at law would be adequate. The Shareholder further agrees that neither Purchaser nor any other person or entity shall be required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this paragraph, and the Shareholder irrevocably waives any right he or she may have to require the obtaining, furnishing or posting of any such bond or similar instrument.

10. Governing Law. This Agreement is governed by, and shall be interpreted in accordance with, the laws of the State of Montana, without regard to any applicable conflict of law principles.

11. Notice. All notices and other communications hereunder shall be in writing and shall be deemed given if delivered personally, telecopied (with confirmation), mailed by registered or certified mail (return receipt requested) or delivered by an express courier (with confirmation) if to the Shareholder, to the address or e-mail address, as applicable, set forth in Schedule A hereto, and if to Purchaser, in accordance with Section 8.7 of the Merger Agreement.

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12. Severability. Whenever possible, each provision or portion of any provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable law, but if any provision or portion of any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable law or rule in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision or portion of any provision in such jurisdiction, and this Agreement shall be reformed, construed and enforced in such jurisdiction such that the invalid, illegal or unenforceable provision or portion thereof shall be interpreted to be only so broad as is enforceable.

13. Amendments; Waivers. Any provision of this Agreement may be amended or waived if, and only if, such amendment or waiver is in writing and signed (a) in the case of an amendment, by Purchaser and the Shareholder, and (b) in the case of a waiver, by the party against whom the waiver is to be effective. No failure or delay by any party in exercising any right, power or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege.

14. Waiver of Jury Trial. EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY THAT MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE EXTENT PERMITTED BY LAW AT THE TIME OF INSTITUTION OF THE APPLICABLE LITIGATION, ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT. EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT: (I) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER; (II) THE PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER; (III) THE PARTY MAKES THIS WAIVER VOLUNTARILY; AND (IV) THE PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 14.

15. Counterparts. The parties may execute this Agreement in one or more counterparts, including by facsimile or other electronic signature. All the counterparts will be construed together and will constitute one Agreement.

[Signature pages follow]

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SIGNED as of the date first set forth above:

FIRST INTERSTATE BANCSYSTEM, INC.
By:
	Kevin P. Riley
Title: President and Chief Executive Officer

[Additional Signatures on Next Page]

SHAREHOLDER:

Name

Title

Number of Shares:                                                    

SCHEDULE A

Shareholder Information

Name, Address and E-Mail Address for Notices

EX-99.1

First Interstate BancSystem April 25, 2018 First interstate Furthers expansion into Growth Markets of the northwest with acquisition of Northwest Bancorporation, Inc. Exhibit 99.1

This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements about (1) the benefits of the merger between First Interstate BancSystem, Inc. (“First Interstate”) and Northwest Bancorporation, Inc. (“Northwest Bancorporation”), including anticipated future results, cost savings and accretion to reported earnings that may be realized from the merger; (2) First Interstate and Northwest Bancorporation’s plans, objectives, expectations and intentions and other statements contained in this presentation that are not historical facts; and (3) other statements identified by words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates” or words of similar meaning. Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. The following factors, among others, could cause actual results to differ materially from the anticipated results expressed in the forward-looking statements: the businesses of First Interstate and Northwest Bancorporation may not be combined successfully, or such combination may take longer than expected; the cost savings from the merger may not be fully realized or may take longer than expected; operating costs, customer loss and business disruption following the merger may be greater than expected; governmental approvals of the merger may not be obtained, or adverse regulatory conditions may be imposed in connection with governmental approvals of the merger or otherwise; the stockholders of Northwest Bancorporation may fail to approve the merger; credit and interest rate risks associated with First Interstate’s and Northwest Bancorporation’s respective businesses; and difficulties associated with achieving expected future financial results. Additional factors that could cause actual results to differ materially from those expressed in the forward-looking statements are discussed in First Interstate’s reports (such as the Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K) filed with the SEC and available at the SEC’s Internet website (www.sec.gov). All subsequent written and oral forward-looking statements concerning the proposed transaction or other matters attributable to First Interstate or Northwest Bancorporation or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements above. Except as required by law, First Interstate and Northwest Bancorporation do not undertake any obligation to update any forward-looking statement to reflect circumstances or events that occur after the date the forward-looking statement is made. Safe Harbor

This presentation is being made in respect of the proposed merger between First Interstate and Northwest Bancorporation. This presentation does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval.   In connection with the proposed transaction, First Interstate intends to file a registration statement on Form S-4 with the SEC, which will include a proxy statement of Northwest Bancorporation and a prospectus of First Interstate, and First Interstate and Northwest Bancorporation will file other documents regarding the proposed transaction with the SEC. Before making any voting or investment decision, investors and security holders of Northwest Bancorporation are urged to carefully read the entire registration statement and proxy statement/prospectus, when they become available, as well as any amendments or supplements to these documents, because they will contain important information about the proposed transaction. The documents filed by First Interstate with the SEC may be obtained free of charge at the SEC’s website at www.sec.gov. In addition, the documents filed by First Interstate may be obtained free of charge at its website at www.fibk.com or by contacting First Interstate BancSystem, Inc., 401 North 31st Street, Billings, Montana 59116, Attention: Margie Morse, Investor Relations Officer, telephone (406) 255-5023.   First Interstate and Northwest Bancorporation and certain of their directors and executive officers may be deemed to be participants in the solicitation of proxies of Northwest Bancorporation’s shareholders in connection with the proposed transaction. Information about the directors and executive officers of First Interstate and their ownership of First Interstate common stock is set forth in the proxy statement for First Interstate’s 2018 Annual Meeting of Shareholders, as filed with the SEC on Schedule 14A on March 16, 2018. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the proxy statement/prospectus regarding the proposed merger when it becomes available. Free copies of this document may be obtained as described in the preceding paragraph. Important Additional Information

Continued geographic diversification into attractive, high deposit growth markets in Pacific Northwest Strong presence in Spokane, Washington and Coeur d’Alene, Idaho Opportunity to accelerate growth in Columbia River Valley Strong deposit franchise with 0.25% cost of deposits and 91% core deposits ¹ Allows First Interstate to continue to be a high performing bank with greater potential earnings growth Complements First Interstate’s existing footprint between the Mountain West and Pacific Northwest Strategically Compelling Strong Transaction Economics Financially attractive transaction with conservative assumptions 3%+ EPS accretion in 2019 and beyond Tangible Book Value per share earnback of <2.0 years using both crossover and simple methods 20+% IRR Continued positive operating leverage with over $13 billion in assets pro forma All metrics reported inclusive of impact of Durbin Amendment Low Execution Risk Strong understanding of markets, diversified lending products and approach to relationship banking Similar credit cultures focused on conservative underwriting with high quality, low risk portfolio Comprehensive due diligence process completed Retention of key Northwest Bancorporation personnel Transaction Highlights Core deposits excludes jumbo time deposits with balances greater than $100,000; For the quarter ended March 31, 2018

Northwest Bancorporation Overview Bank Regulatory Loan and Deposit Composition Dominant Community Bank in Strong Economies Highlights Northwest Bancorporation, Inc. is the bank holding company of Inland Northwest Bank, a state-chartered community bank which currently operates 20 offices across Washington, Idaho and Oregon Leading community bank in Columbia River Gorge and Eastern Washington; growth opportunity in Portland Consistent and growing, low-cost deposit base Diverse loan portfolio with expertise in business banking and agricultural lending Portland Metro and Hood River, OR Portland-Vancouver-Hillsboro MSA is largest MSA in Oregon ¹ Portland economy ranks 20th largest in country by GDP ² Hood River’s population expected to grow 5.6% in next 5 years ¹ Eastern Washington Diverse economic region including strong corporate and government employers, top universities and robust agriculture Spokane Region is the 5th largest aerospace cluster in the U.S. ³ Whitman County is the #1 wheat producing county in the U.S and #2 for barley production ³ S&P Global Market Intelligence Bureau of Economic Analysis Greater Spokane Incorporated Loans: $670mm Deposits: $721mm Headquarters Spokane, Washington Footprint 20 branches / 3 states Assets $827 million Gross Loans $670 million Deposits $721 million Total Equity $82 million Overview of Northwest Bancorporation, Inc. As of March 31, 2018 Yield on Loans: 5.29% Cost of Deposits: 0.25% Non-int. Bearing Deposits: 33%

Northwest Bancorporation has strong market share in complementary high deposit growth Pacific Northwest markets Attractive, High Deposit Growth Pacific Northwest Markets Source: S&P Global Market Intelligence, FDIC deposit data as of June 30, 2017. FIBK (127) NBCT (20)

First Interstate Pro Forma¹ Yield on Loans: 4.92% Yield On Loans: 4.99% Total: $7,644mm Total: $8,313mm Northwest Bancorporation Yield on Loans: 5.29% Total: $670mm Pro forma as of 3/31/2018; excludes growth and purchase-accounting adjustments. Note: Loan compositions reflect Bank level regulatory data as of March 31, 2018 20% CAGR since 2013 85% of loans floating with Prime or LIBOR Expertise in business banking and farm/agricultural lending 35% Owner-Occupied CRE and C&I Strong asset quality and underwriting standards Strong Loan Growth 20% CAGR Diverse, Low Risk Loan Portfolio As of March 31, 2018 Northwest Bancorporation Loan Portfolio Overview

Northwest Bancorporation Total: $10,026mm Total: $10,747mm First Interstate Pro Forma3 Total: $721mm Northwest Bancorporation Deposit Overview 0.25% cost of deposits 33% non-interest bearing deposits 11% transaction deposits ~91% core deposits1 Cost of Deposits Core deposits excludes jumbo time deposits with balances greater than $100,000. Peers include all NASDAQ, NYSE or NYSEAM traded U.S. banks and thrifts with $10 to $20 billion in total assets; excludes merger targets and Puerto Rico headquartered. Pro forma as of 3/31/2018; excludes growth and purchase-accounting adjustments. Note: Deposit compositions reflect Bank level regulatory data as of March 31, 2018 Low Cost Deposit Base As of March 31, 2018

0.516 FIBK Class A common shares per Northwest Bancorporation share, or over 3.9mm FIBK shares in aggregate Implied purchase price of $21.03 per share $160.9mm in aggregate value, including $2.8mm in cash consideration for warrant holders Consideration and Deal Value1 Summary of Deal Terms Pricing Ratios 17.8x Price / 2018E Earnings Per Share 2.19x Tangible Book Value as of March 31, 2018 13.9% Core Deposit Premium ² Post-Merger Economic Ownership 94% FIBK / 6% Northwest Bancorporation Required Approvals Customary regulatory approvals Two-thirds of Northwest Bancorporation shareholders Anticipated Closing Late 3rd or early 4th Quarter 2018 Implied purchase price and aggregate value based on FIBK closing price of $40.75 per share on April 24, 2018. Core deposits excludes jumbo time deposits with balances greater than $100,000.

Cost Savings One-time Deal Costs Fair Market Value and Accounting Adjustments Durbin Impact TBV Impact Financial Impact to FIBK EPS Accretion Internal Rate of Return ~3% accretive to EPS in 2019 Assumptions1 1. Pre-tax amounts. Financial Impact and Assumptions ~1% Tangible Book Value dilution per share <2.0 year Tangible Book Value earnback using both crossover and simple methods ~20% 30% of Northwest Bancorporation’s non-interest expense base Restructuring charge of ~$16mm Credit Mark: $6.4mm gross mark; Loan Rate mark: $9.0mm Other Marks: $5.3mm (positive to equity) CDI: $10.7mm amortized using sum of years digits over 10 years $0.8mm decrease in annual interchange fee revenue

Disciplined and Experienced Acquirer Thorough Due Diligence Process Comprehensive Due Diligence and Preparation First Interstate management and employees have significant acquisition and integration experience Four successful acquisitions in the last five years Cascade acquisition already integrated and systems converted Integration planning and readiness underway Comprehensive due diligence process led by First Interstate’s integration teams Extensive credit due diligence, including thorough loan file review and credit re-underwriting Reviewed 60% of Commercial and Commercial Real Estate loans Reviewed 100% of criticized loans over $250k and 100% of OREO Detailed review of cost structure and expected synergies Identified cost savings opportunities Conservative earnings expectations for Northwest Bancorporation Thorough review of all regulatory, compliance, legal and operational risks

Benefits of Operating Leverage Opens New Markets for Growth Northwest Strengthens Outlook for First Interstate Strong earnings contribution from Northwest Bancorporation fully realized in 2019 3%+ Earnings Per Share accretion with conservative assumptions Transaction cost savings result in improved pro forma efficiency ratio Capitalize on First Interstate’s and Northwest Bancorporation’s investment in people, processes and technology Complements First Interstate’s existing footprint between the Mountain West and Pacific Northwest Further expands distribution network into diverse, high deposit growth markets in Pacific Northwest Significant opportunity for increased deposit gathering in new markets Opportunity to accelerate growth in Columbia River Valley Geographic and loan portfolio diversification reduces balance sheet risk

EX-99.2

Exhibit 99.2

First Interstate BancSystem, Inc. Enters Definitive Agreement to Acquire Northwest Bancorporation, Inc. and Expand its Presence in the Pacific Northwest

Company Release – April 25, 2018

BILLINGS, Montana and SPOKANE, Washington— First Interstate BancSystem, Inc. (“First Interstate”) (NASDAQ: FIBK) and Northwest Bancorporation, Inc. (“Northwest”) (OTC Pink: NBCT) today announced that they have entered into a definitive agreement under which First Interstate, parent company of First Interstate Bank, will acquire Northwest, parent company of Inland Northwest Bank (“INB”), in an all-stock transaction valued at approximately $160.9 million in aggregate, or $21.03 per share. The transaction complements First Interstate’s footprint, which successfully expanded from the Mountain West to the Pacific Northwest with the completion of the Cascade Bancorp acquisition in May 2017, and provides First Interstate with a presence in several high-growth markets, including Spokane, Washington, Portland, Oregon and Coeur d’Alene, Idaho.

INB is a customer-focused community bank based in Spokane, Washington with $826.8 million of assets, $669.0 million in loans, $721.0 million in deposits and $81.7 million in shareholders’ equity with 20 banking offices across Washington, Idaho and Oregon. First Interstate intends to continue operating all 20 of the banking offices. After completion of the acquisition, First Interstate will have approximately $13.1 billion in total assets, $8.3 billion in total loans, $10.7 billion in total deposits, $1.5 billion in shareholders’ equity and 146 banking offices.

“We are very excited about this acquisition. Our partnership with INB supplements and accelerates our expansion into the Pacific Northwest. More importantly, we believe INB’s customer focus and community bank model align very well with our culture and approach to banking,” said Kevin Riley, First Interstate President and Chief Executive Officer. “Since expanding into Idaho, Oregon, and Washington in 2017, we have a tremendous respect and enthusiasm for these communities and markets. We’re eager to deepen our presence and build relationships with the clients who call these beautiful regions home,” continued Mr. Riley.

“INB’s growth and momentum spurred First Interstate’s interest in us, and, consequently, a tremendous opportunity for our combined company to expand our presence throughout the Pacific Northwest. First Interstate is the ideal partner because we share values about community banking and how we serve our employees, customers and communities,” said Russ Lee, President and Chief Executive Officer of Northwest. “We are confident that, together, we will deliver a high standard of excellence, continue to value our relationships in each of our communities, and generate strong returns for our shareholders, many of whom have supported INB since it was founded almost 30 years ago.”

Pursuant to the terms of the definitive merger agreement, Northwest shareholders will receive 0.516 shares of First Interstate Class A common stock in exchange for each share of Northwest common stock they hold. The exchange ratio is fixed and the shares received by Northwest shareholders are expected to qualify as a tax-free exchange. Northwest shareholders will own approximately 6% of First Interstate once the transaction is complete.

First Interstate expects the transaction will result in annual earnings per share (EPS) accretion of 3% in 2019. First Interstate is expected to recover the minimal tangible book value dilution experienced in this transaction in under two years.

The boards of directors of each company have unanimously approved the transaction and the directors and executive officers of Northwest have entered into agreements with First Interstate, pursuant to which they have agreed to vote their shares of Northwest common stock in favor of the transaction.

First Interstate and Northwest expect to close the transaction late in the third or early in the fourth quarter of 2018, after satisfaction of customary closing conditions, including regulatory approvals and the approval of the Northwest shareholders. It is anticipated that Inland Northwest Bank will be merged with and into First Interstate Bank in connection with the scheduled data processing conversion.

Sandler O’Neill & Partner, L.P. served as financial advisor and Luse Gorman, PC served as legal counsel to First Interstate. D.A. Davidson & Co. served as financial advisor and Witherspoon Kelley served as legal counsel to Northwest.

CONFERENCE CALL

First Interstate management will review additional information regarding the transaction in the conference call beginning at 11 a.m. Eastern Time on Thursday, April 26, 2018. The call may be accessed by dialing 1-877-507-0356. To participate via the Internet, log on to www.FIBK.com. A replay will be available approximately one hour after the end of the conference call by dialing 1-877-344-7529. The conference ID is 10118682. The call will also be archived on First Interstate’s website, www.FIBK.com. Additionally, a presentation with information about this transaction can be accessed on the Webcasts and Presentations page of the Company’s investor relations website.

About First Interstate BancSystem, Inc. and First Interstate Bank

First Interstate BancSystem, Inc. is a financial services holding company, headquartered in Billings, Montana, with $12.3 billion in assets as of March 31, 2018. It is the parent company of First Interstate Bank, a community bank operating over 120 banking offices, including online and mobile banking services, throughout Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming. As a recognized leader in community banking services, First Interstate is driven by strong values, as well as a commitment to delivering a rewarding experience to its employees, strong returns to shareholders, exceptional products and services to its clients, and resources to the communities it serves.

About Northwest Bancorporation, Inc. and Inland Northwest Bank

Northwest Bancorporation, Inc. is the parent company of Inland Northwest Bank, a state-chartered community bank that currently operates 20 offices across Washington, Idaho, and Oregon. INB specializes in meeting the financial needs of individuals and small to medium-sized businesses, including professional corporations and agriculture-related operations, by providing a full line of commercial, retail, agricultural, and mortgage and private banking products and services. More information about INB can be found on its website at www.inb.com. The Company’s stock is quoted on the OTC Market’s Pink Marketplace under the symbol NBCT.

Cautionary Note Regarding Forward Looking Statements

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Rule 175 promulgated thereunder, and Section 21E of the Securities Exchange Act of 1934, as amended, and Rule 3b-6 promulgated thereunder, that involve inherent risks and uncertainties. Any statements about First Interstate’s or the combined company’s plans, objectives, expectations, strategies, beliefs, or future performance or events constitute forward-looking statements. Such statements are identified as those that include words or phrases such as “believes,” “expects,” “anticipates,” “plans,” “trend,” “objective,” “continue,” or similar expressions or future or conditional verbs such as “will,” “would,” “should,” “could,” “might,” “may,” or similar expressions. Forward-looking statements involve known and unknown risks, uncertainties, assumptions, estimates, and other important factors that could cause actual results to differ materially from any results, performance,

or events expressed or implied by such forward-looking statements. Such forward-looking statements include but are not limited to statements about the benefits of the business combination transaction involving First Interstate and Northwest, including future financial and operating results, the combined company’s plans, objectives, expectations and intentions, and other statements that are not historical facts. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially from those projected, including but not limited to the following: the possibility that the merger does not close when expected or at all because required regulatory, shareholder, or other approvals and other conditions to closing are not received or satisfied on a timely basis or at all; the risk that the benefits from the transaction may not be fully realized or may take longer to realize than expected, including as a result of changes in general economic and market conditions, interest and exchange rates, monetary policy, laws and regulations and their enforcement, and the degree of competition in the geographic and business areas in which First Interstate and Northwest operate; the ability to promptly and effectively integrate the businesses of First Interstate Bank and INB; the reaction of the companies’ customers, employees, and counterparties to the transaction; and the diversion of management time on merger-related issues.

These factors are not necessarily all of the factors that could cause First Interstate’s or the combined company’s actual results, performance, or achievements to differ materially from those expressed in or implied by any of the forward-looking statements. Other unknown or unpredictable factors also could harm First Interstate’s or the combined company’s results.

All forward-looking statements attributable to First Interstate’s, Northwest’s, or the combined company’s or persons acting on First Interstate’s or Northwest’s behalf are expressly qualified in their entirety by the cautionary statements set forth above. Forward-looking statements speak only as of the date they are made and First Interstate and Northwest do not undertake or assume any obligation to update publicly any of these statements to reflect actual results, new information or future events, changes in assumptions, or changes in other factors affecting forward-looking statements, except to the extent required by applicable laws. If First Interstate or Northwest update one or more forward-looking statements, no inference should be drawn that First Interstate or Northwest will make additional updates with respect to those or other forward-looking statements.

Additional Information about the Merger and Where to Find it

This communication is being made with respect to the proposed transaction involving First Interstate and Northwest. This material is not a solicitation of any vote or approval of the Northwest shareholders and is not a substitute for the proxy statement/prospectus or any other documents that Northwest may send to its shareholders in connection with the proposed merger. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities.

In connection with the proposed merger, First Interstate will file with the Securities and Exchange Commission (the “SEC”) a Registration Statement on Form S-4 that will include a proxy statement of Northwest and a prospectus of First Interstate, as well as other relevant documents concerning the proposed merger. Before making any voting or investment decisions, investors and shareholders are urged to read the Registration Statement and the proxy statement/prospectus regarding the proposed merger, as well as any other relevant documents filed with the SEC and any amendments or supplements to those documents, because they will contain important information. Northwest will mail the proxy statement/prospectus to its shareholders. Shareholders are also urged to carefully review and consider each of First Interstate’s public filings with the SEC, including, but not limited to, its Annual Reports on Form 10-K, its proxy statements, its Quarterly Reports on Form 10-Q, and its Current Reports on Form 8-K. Copies of the Registration Statement and proxy statement/prospectus and other filings incorporated by reference therein, as well as other filings containing information about First Interstate, may be obtained as they become available at the SEC’s Internet site (http://www.sec.gov). You will also be able to obtain these documents, free of charge, from First Interstate at www.fibk.com.

First Interstate and Northwest and certain of their directors and executive officers may be deemed to be participants in the solicitation of proxies of Northwest’s shareholders in connection with the proposed transaction. Information about the directors and executive officers of First Interstate and their ownership of First Interstate common stock is set forth in the proxy statement for First Interstate’s 2018 Annual Meeting of Shareholders, as filed with the SEC on Schedule 14A on March 16, 2018. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the proxy statement/prospectus regarding the proposed merger when it becomes available. Free copies of this document may be obtained as described in the preceding paragraph.

First Interstate BancSystem, Inc.:

Marcy Mutch, Chief Financial Officer

406-255-5312

marcy.mutch@fib.com

or

Margie Morse, Investor Relations Officer

(406) 255-5053

investor.relations@fib.com

or

Northwest Bancorporation, Inc.:

Russell A. Lee, President and CEO

Holly A. Poquette, Chief Financial Officer

(509) 456-8888

nbct@inb.com