{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-25-000122","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2025-08-18T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.508099+00:00","generated_at":"2026-05-17T12:14:22.171072+00:00","sec_items":["1.02","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"First Interstate BancSystem redeems all outstanding 5.25% subordinated notes due 2030","bullets":["Redeemed all outstanding $5.25% Fixed-to-Floating Rate Subordinated Notes due 2030 on Aug 15, 2025 at 100% par plus accrued interest.","Company deposited sufficient funds with trustee to satisfy and discharge obligations under the notes and related First Supplemental Indenture.","Holders were notified of redemption election on July 3, 2025.","Remaining subordinated debt: $125M principal of 7.625% notes due 2035 under separate indenture."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-25-000122","json":"https://secwatch.observer/filing/0000860413-25-000122.json","markdown":"https://secwatch.observer/filing/0000860413-25-000122.md","text":"https://secwatch.observer/filing/0000860413-25-000122.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000122/0000860413-25-000122-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000122/fibk-20250815.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T12:14:22.171072+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}