{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-26-000007","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2026-01-28T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.838225+00:00","generated_at":"2026-05-16T07:16:02.586017+00:00","sec_items":["2.02","7.01","8.01","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"First Interstate Q4 net income $108.8M ($1.08 EPS) vs $52.1M a year ago; board ups buyback to $300M","bullets":["Net income $108.8M ($1.08 diluted EPS) vs $71.4M ($0.69) Q3 2025 and $52.1M ($0.50) Q4 2024.","Includes $62.7M gain from sale of Arizona/Kansas branches; net interest margin rose to 3.36% from 3.18% YoY.","Non-performing assets fell 25.5% to $138.3M; criticized loans declined $112.3M to $1,051.8M.","Net charge-offs jumped to $22.1M (0.56% annualized) from $2.3M in Q3; CET1 ratio improved to 14.38%.","Board authorized $150M additional share repurchase ($300M total); $117.6M repurchased through Dec 31, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-26-000007","json":"https://secwatch.observer/filing/0000860413-26-000007.json","markdown":"https://secwatch.observer/filing/0000860413-26-000007.md","text":"https://secwatch.observer/filing/0000860413-26-000007.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041326000007/0000860413-26-000007-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041326000007/fibk-20260128.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T07:16:02.586017+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"}