{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-24-000247","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2024-08-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:16.182623+00:00","generated_at":"2026-05-31T10:16:21.173289+00:00","sec_items":["8.01","9.01"],"event_type":"dividend","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Columbia Banking System declares $0.36 quarterly dividend payable Sept 9","bullets":["Quarterly cash dividend of $0.36 per common share declared by Board.","Dividend payable September 9, 2024 to holders of record August 23, 2024.","Columbia Banking System is parent company of Umpqua Bank (Nasdaq: COLB)."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-24-000247","json":"https://secwatch.observer/filing/0000887343-24-000247.json","markdown":"https://secwatch.observer/filing/0000887343-24-000247.md","text":"https://secwatch.observer/filing/0000887343-24-000247.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734324000247/0000887343-24-000247-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734324000247/colb-20240812.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T10:16:21.173289+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"}