{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-25-000172","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2025-05-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.629395+00:00","generated_at":"2026-05-21T04:08:24.530226+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","bullets":["Quarterly cash dividend of $0.36 per common share approved by Board.","Payable June 16, 2025 to shareholders of record as of May 30, 2025.","No change from prior quarter's dividend rate indicated.","Columbia (COLB) is parent company of Umpqua Bank."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-25-000172","json":"https://secwatch.observer/filing/0000887343-25-000172.json","markdown":"https://secwatch.observer/filing/0000887343-25-000172.md","text":"https://secwatch.observer/filing/0000887343-25-000172.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000172/0000887343-25-000172-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000172/colb-20250516.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T04:08:24.530226+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"}