FIRST INTERSTATE BANCSYSTEM INC
First Interstate BancSystem, Inc. is a financial holding company headquartered in Billings, Montana. It is the parent company of First Interstate Bank, a community bank with locations throughout 14 states within the Western and Midwestern United States. It is the largest bank based in Montana, as measured by total assets.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Business sectors
- financial services [1]
- Company / filing name
- FIRST INTERSTATE BANCSYSTEM INC [2]
- Headquarters location
- First Interstate Center [1]
- Founded
- 1968 [1]
- Official website
- http://www.fibk.com/; https://www.firstinterstatebank.com/ [1]
- CIK
- 860413 [2]
- Country in background record
- United States [1]
- Symbols / exchanges
- FIBK (Nasdaq) [2]
Company positioning and business
First Interstate BancSystem, Inc. is a financial holding company headquartered in Billings, Montana. It is the parent company of First Interstate Bank, a community bank with locations throughout 14 states within the Western and Midwestern United States. It is the largest bank based in Montana, as measured by total assets. [3]
Background text: Wikipedia contributors, First Interstate BancSystem. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
Listed securities: FIBK (Nasdaq). Multiple symbols may represent different share classes or securities of the same registrant. [2]
History and key events
Founding / inception date recorded in Wikidata. [1]
Financial results and regulatory disclosures
No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]
Related entities and concepts
Frequently asked questions
When was FIRST INTERSTATE BANCSYSTEM INC founded?
Founded: 1968. The linked source provides the background record. [1]
Where is the headquarters of FIRST INTERSTATE BANCSYSTEM INC?
Headquarters location: First Interstate Center. The linked source provides the background record. [1]
Which business sectors are recorded for FIRST INTERSTATE BANCSYSTEM INC?
Business sectors: financial services. The linked source provides the background record. [1]
Sources and review dates
- Wikidata — company background record (CC0) ↗
- Company identity and profile data ↗
- Wikipedia contributors — First Interstate BancSystem (CC BY-SA 4.0) ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.