{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-25-000022","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2025-02-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.690888+00:00","generated_at":"2026-05-26T21:49:16.136486+00:00","sec_items":["8.01","9.01"],"event_type":"dividend","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Columbia Banking System declares $0.36 quarterly dividend, payable March 17, 2025","bullets":["Quarterly cash dividend of $0.36 per common share approved by Board.","Payable March 17, 2025 to shareholders of record as of February 28, 2025.","Columbia Banking System is parent company of Umpqua Bank, trades as COLB on Nasdaq.","Dividend amount unchanged from prior quarter (no increase or decrease indicated)."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-25-000022","json":"https://secwatch.observer/filing/0000887343-25-000022.json","markdown":"https://secwatch.observer/filing/0000887343-25-000022.md","text":"https://secwatch.observer/filing/0000887343-25-000022.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000022/0000887343-25-000022-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000022/colb-20250214.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T21:49:16.136486+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"}