{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-25-000212","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2025-07-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.595105+00:00","generated_at":"2026-05-18T04:50:00.652626+00:00","sec_items":["5.07","7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Columbia Banking and Pacific Premier shareholders approve proposed acquisition","bullets":["Columbia shareholders approved issuance of common stock: 183,261,639 for, 291,911 against (99.8% of votes cast).","Pacific Premier stockholders also approved the merger at their special meeting on July 21, 2025.","Deal expected to close later in 2025, subject to receipt of remaining regulatory approvals and customary conditions.","Combined entity to enhance market leadership across the West; teams preparing for swift closing."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-25-000212","json":"https://secwatch.observer/filing/0000887343-25-000212.json","markdown":"https://secwatch.observer/filing/0000887343-25-000212.md","text":"https://secwatch.observer/filing/0000887343-25-000212.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000212/0000887343-25-000212-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000212/colb-20250721.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T04:50:00.652626+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"}