FIRST INTERSTATE BANCSYSTEM INC — Investor Relations & Filings
First Interstate BancSystem, Inc. is a financial services holding company and the parent of First Interstate Bank. The bank operates on a community banking model, delivering a range of financial solutions to individuals, businesses, and communities across numerous states in the Western and Midwestern United States. Its offerings include personal and business banking products, lending services, and wealth management. The company emphasizes a disciplined approach focused on high-quality financial products, customer service, and socially responsible leadership within its local markets.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| SCHEDULE 13G/A - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Subject) | 2026-03-26 | English | |
| 4 - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Issuer) | 2026-03-18 | English | |
| 4 - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Issuer) | 2026-03-18 | English | |
| 4 - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Issuer) | 2026-03-18 | English | |
| 4 - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Issuer) | 2026-03-18 | English | |
| 4 - FIRST INTERSTATE BANCSYSTEM INC (0000860413) (Issuer) | 2026-03-17 | English |
Market data
Market data not available
Price history
Peer group · Other monetary intermediation
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FIRST INTERSTATE BANCSYSTEM INC via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/31290/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31290 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=31290 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31290 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 31290}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for FIRST INTERSTATE BANCSYSTEM INC (id: 31290)"
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