# EDGAR Filing Document

**Accession Number:** 0000860413
**File Stem:** 0000860413-23-000008
**Filing Date:** 2023-1
**Character Count:** 6188
**Document Hash:** fc36d684b53f34d29d356eb0169f5b56
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000860413-23-000008.hdr.sgml**: 20230113

**ACCESSION NUMBER**: 0000860413-23-000008

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20230111

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230113

**DATE AS OF CHANGE**: 20230113

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIRST INTERSTATE BANCSYSTEM INC
- **CENTRAL INDEX KEY:** 0000860413
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **IRS NUMBER:** 810331430
- **STATE OF INCORPORATION:** MT
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34653
- **FILM NUMBER:** 23528838

**BUSINESS ADDRESS:**
- **STREET 1:** P O BOX 30918
- **STREET 2:** 401 NO 31ST STREET
- **CITY:** BILLINGS
- **STATE:** MT
- **ZIP:** 59116-0918
- **BUSINESS PHONE:** 4062555300

**MAIL ADDRESS:**
- **STREET 1:** P O BOX 30918
- **STREET 2:** 401 NO 31ST STREET
- **CITY:** BILLINGS
- **STATE:** MT
- **ZIP:** 59116-0918

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIRST INTERSTATE BANCSYSTEM OF MONTANA INC
- **DATE OF NAME CHANGE:** 19930615

?xml version="1.0" ? fibk-20230111

**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): January 11, 2023**

**------------------------------** 

**FIRST INTERSTATE BANCSYSTEM, INC.**

**(Exact name of registrant as specified in its charter)**

**------------------------------** 

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| | | | |
|:---|:---|:---|:---|
| **Montana** | **Montana** | **001-34653** | **81-0331430** |
| (State or other jurisdiction of<br>incorporation or organization) | (State or other jurisdiction of<br>incorporation or organization) | (Commission<br>File No.) | (IRS Employer<br>Identification No.) |
| **401 North 31**<sup>st</sup> **Street,**  | **401 North 31**<sup>st</sup> **Street,**  |  |  |
| **Billings,** | **MT** |  | **59116-0918** |
| (Address of principal executive offices) | (Address of principal executive offices) |  | (zip code) |

---

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| | |
|:---|:---|
| **(406)** | **255-5311** |
| (Registrant's telephone number, including area code) | (Registrant's telephone number, including area code) |
| **Not Applicable** | **Not Applicable** |
| (Former name or former address, if changed since last report) | (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 (<u>see</u> General Instruction A.2. below):

☐ 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 CFR 240.13e-4(c))

\* \* \* \* \*

**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **<u>Title of each class</u>** | **<u>Trading Symbol(s)</u>** | **<u>Name of exchange on which registered</u>** |
| Class A common stock, no par value | FIBK | NASDAQ |

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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).

&nbsp;&nbsp;&nbsp;&nbsp;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. ☐

\* \* \* \* \*

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**Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.**

&nbsp;&nbsp;&nbsp;&nbsp;(b) On January 11, 2023, Ross E. Leckie notified First Interstate BancSystem, Inc. (the "Company") that for personal reasons he was resigning as a Director of the Company effective at midnight on January 12, 2023. His resignation is not related to any disagreement with the Company on any matter relating to the Company's operations, policies, or practices. Mr. Leckie has been a valuable member of the Company's Board of Directors for more than a decade, and the Company thanks him for his dedicated service and many contributions to the Company and wishes him well.

Following the announcement of Mr. Leckie's resignation, Frances P. Grieb, a current member of the Audit Committee of the Board of Directors who has also been determined by the Board of Directors to qualify as an audit committee financial expert under applicable rules of the Securities and Exchange Commission, has graciously agreed to replace Mr. Leckie on an interim basis as the Chair of the Company's Audit Committee.

**Item 9.01 Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;

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| | | |
|:---|:---|:---|
| (d) | **Exhibit Number** | **Description** |
| | &nbsp;&nbsp;104 | Cover Page Interactive Data File (embedded within Inline XBRL document). |

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**SIGNATURES**

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

Date: January 13, 2023

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| | |
|:---|:---|
| FIRST INTERSTATE BANCSYSTEM, INC. | FIRST INTERSTATE BANCSYSTEM, INC. |
| By: | /s/ KEVIN P. RILEY |
|  | Kevin P. Riley |
|  | President and Chief Executive Officer |

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