First Interstate BancSystem Files 8-K
Ticker: FIBK · Form: 8-K · Filed: Oct 14, 2025 · CIK: 860413
| Field | Detail |
|---|---|
| Company | First Interstate Bancsystem INC (FIBK) |
| Form Type | 8-K |
| Filed Date | Oct 14, 2025 |
| Risk Level | low |
| Pages | 2 |
| Reading Time | 2 min |
| Key Dollar Amounts | $0.00001 |
| Sentiment | neutral |
Sentiment: neutral
Topics: regulatory-disclosure, financial-exhibits, company-filing
Related Tickers: FIBK
TL;DR
FIBK filed an 8-K on Oct 14 for an Oct 10 event, including financial exhibits.
AI Summary
First Interstate BancSystem, Inc. filed an 8-K on October 14, 2025, reporting an event on October 10, 2025. The filing pertains to Regulation FD Disclosure and includes Financial Statements and Exhibits. The company, formerly known as First Interstate BancSystem of Montana Inc., is incorporated in Delaware and headquartered in Billings, Montana.
Why It Matters
This 8-K filing indicates a regulatory disclosure and submission of financial exhibits by First Interstate BancSystem, Inc., providing updated information to investors.
Risk Assessment
Risk Level: low — This filing is a standard 8-K for regulatory disclosure and exhibits, not indicating any immediate material adverse events.
Key Numbers
- 001-34653 — SEC File Number (Identifies the company's filing history with the SEC.)
- 81-0331430 — IRS Employer Identification No. (Tax identification number for the company.)
Key Players & Entities
- FIRST INTERSTATE BANCSYSTEM, INC. (company) — Registrant
- October 10, 2025 (date) — Earliest event reported
- October 14, 2025 (date) — Filing date
- Billings, MT (location) — Principal executive offices
- FIRST INTERSTATE BANCSYSTEM OF MONTANA INC (company) — Former company name
FAQ
What specific event triggered this 8-K filing on October 10, 2025?
The filing does not specify the exact event, only that it is a 'Regulation FD Disclosure' and includes 'Financial Statements and Exhibits'.
What is the primary business of First Interstate BancSystem, Inc.?
The filing lists the Standard Industrial Classification as 'STATE COMMERCIAL BANKS [6022]'.
When did the company change its name from First Interstate BancSystem of Montana Inc.?
The date of the name change was June 15, 1993.
Where is First Interstate BancSystem, Inc. headquartered?
The company's principal executive offices are located at 401 North 31st Street, Billings, MT 59101.
What is the fiscal year end for First Interstate BancSystem, Inc.?
The company's fiscal year ends on December 31.
Filing Stats: 531 words · 2 min read · ~2 pages · Grade level 11.1 · Accepted 2025-10-14 10:01:11
Key Financial Figures
- $0.00001 — ange on which registered Common stock, $0.00001 par value FIBK NASDAQ Indicate by che
Filing Documents
- fibk-20251010.htm (8-K) — 28KB
- 0000860413-25-000152.txt ( ) — 140KB
- fibk-20251010.xsd (EX-101.SCH) — 2KB
- fibk-20251010_lab.xml (EX-101.LAB) — 21KB
- fibk-20251010_pre.xml (EX-101.PRE) — 12KB
- fibk-20251010_htm.xml (XML) — 3KB
01. Regulation FD Disclosure
Item 7.01. Regulation FD Disclosure. On October 10, 2025, First Interstate BancSystem, Inc.'s wholly owned subsidiary, First Interstate Bank ("First Interstate"), closed the previously-announced transaction with Enterprise Bank & Trust ("Enterprise Bank"), a wholly owned subsidiary of Enterprise Financial Services Corp, pursuant to which Enterprise Bank acquired the twelve branches previously identified in Arizona and Kansas (the "Branches") from First Interstate, including specified deposits and loans, the owned real estate, and fixed and other assets associated with the Branches. Information contained in Item 7.01 of this Current Report on Form 8-K shall neither be deemed filed for purposes of the Securities Exchange Act of 1934, as amended, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such a filing.
01 Financial Statements and Exhibits
Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Exhibit Description 104 Cover Page Interactive Data File (embedded within Inline XBRL document).
SIGNATURES
SIGNATURES 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. Dated: October 14, 2025 FIRST INTERSTATE BANCSYSTEM, INC. By: /s/ KIRK D. JENSEN Kirk D. Jensen Executive Vice President, General Counsel and Secretary