secwatch.observer — SEC 8-K summary ====================================== Issuer: FIRST INTERSTATE BANCSYSTEM INC (FIBK) CIK: 0000860413 Form: 8-K Filed at: 2022-02-01T23:59:59+00:00 Accession: 0000950103-22-001727 Event type: m_and_a Sentiment: positive Materiality: 0.90 Item codes: 2.01, 2.03, 5.02, 5.03, 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 First Interstate completes $2.0B merger with Great Western; 0.8425 exchange ratio -------------------------------------------------------------------------------- - Total aggregate consideration ~47M shares of FIBK Class A common stock; implied total value ~$2.0B. - Five Great Western directors join FIBK board: Brannen, Grieb, Henning, Lacy, Rykhus; five GWB executives depart. - FIBK assumes $83.8M in trust preferred securities and $35M subordinated notes; plans to redeem 2025 notes. - Authorized shares of Class A common stock increased from 100M to 150M; bank systems conversion expected May 2022. - Financial statements to be filed by amendment within 71 days; GWB delisted from NYSE. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/860413/000095010322001727/0000950103-22-001727-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/860413/000095010322001727/dp16234_8k.htm HTML page: https://secwatch.observer/filing/0000950103-22-001727 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer