{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-24-000265","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2024-11-15T23:59:59+00:00","discovered_at":"2026-05-14T18:03:11.273920+00:00","generated_at":"2026-05-30T00:08:32.463293+00:00","sec_items":["8.01","9.01"],"event_type":"dividend","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Columbia Banking System declares $0.36 quarterly dividend, payable Dec 16","bullets":["Quarterly cash dividend of $0.36 per common share declared by board.","Dividend payable December 16, 2024, to shareholders of record November 29, 2024.","Parent company of Umpqua Bank (Nasdaq: COLB)."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-24-000265","json":"https://secwatch.observer/filing/0000887343-24-000265.json","markdown":"https://secwatch.observer/filing/0000887343-24-000265.md","text":"https://secwatch.observer/filing/0000887343-24-000265.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734324000265/0000887343-24-000265-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734324000265/colb-20241115.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T00:08:32.463293+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"}