{"schema_version":"secwatch.filing_event.v1","accession":"0000887343-23-000253","form_type":"8-K","ticker":"COLB","cik":"0000887343","company_name":"COLUMBIA BANKING SYSTEM, INC.","filed_at":"2023-05-23T23:59:59+00:00","discovered_at":"2026-05-14T18:03:42.634467+00:00","generated_at":"2026-06-14T17:43:56.060089+00:00","sec_items":["5.07"],"event_type":"other","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Shareholders elect all 14 director nominees and approve executive compensation advisory vote","bullets":["All 14 director nominees elected; votes for ranged from 170.9M (Numata) to 173.6M (Terry).","Advisory vote to approve named executive officer compensation passed: 170.3M for, 4.1M against.","Shareholders voted for annual say-on-pay frequency (164.4M for 1 year); company adopts annual advisory vote.","Ratification of Deloitte & Touche as independent auditor approved: 181.5M for, 4.9M against."],"urls":{"canonical":"https://secwatch.observer/filing/0000887343-23-000253","json":"https://secwatch.observer/filing/0000887343-23-000253.json","markdown":"https://secwatch.observer/filing/0000887343-23-000253.md","text":"https://secwatch.observer/filing/0000887343-23-000253.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/0000887343-23-000253-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/colb-20230518.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-14T17:43:56.060089+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":[{"claim_id":"0be53362a7317ea1c629090ee28d3fc50a3e119a","claim":"COLUMBIA BANKING SYSTEM, INC. shareholders approved Advisory (non-binding) resolution to approve the frequency of future advisory votes on executive compensation at the 2023-05-18 meeting.","evidence_excerpt":"3. Advisory (non-binding) Approval of Frequency of Future Advisory Votes on Executive Compensation 1 Year 2 Years 3 Years Abstain 164,421,130 135,600 10,064,440 195,111","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/0000887343-23-000253-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"say on pay frequency"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2023-05-18"}],"fact_type":"shareholder_vote"},{"claim_id":"8baf12f4a33bd921fa9802f71a6789ccf30b32f8","claim":"COLUMBIA BANKING SYSTEM, INC. shareholders approved Advisory (non-binding) resolution to ratify the appointment of Deloitte & Touche LLP as the Company's independent registered public accounting firm for fiscal year ending December 31, 2023 at the 2023-05-18 meeting.","evidence_excerpt":"4. Advisory (non-binding) Ratification of Appointment of Independent Public Accounting Firm Votes For Votes Against Abstentions Broker Non-Votes 181,534,128 4,941,409 138,108 —","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/0000887343-23-000253-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"auditor ratification"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2023-05-18"}],"fact_type":"shareholder_vote"},{"claim_id":"a56702466dd91b1842a53a0835d1b851ed675005","claim":"COLUMBIA BANKING SYSTEM, INC. shareholders approved Election of fourteen directors at the 2023-05-18 meeting.","evidence_excerpt":"Cort L. O’Haver 171,495,999 3,191,760 128,522 11,797,364","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/0000887343-23-000253-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"director election"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2023-05-18"}],"fact_type":"shareholder_vote"},{"claim_id":"d8530ff8bb7daf391ea86e805343b449fe148893","claim":"COLUMBIA BANKING SYSTEM, INC. shareholders approved Advisory (non-binding) resolution to approve the compensation of the Company's named executive officers at the 2023-05-18 meeting.","evidence_excerpt":"2. Advisory (non-binding) Approval of Executive Compensation Votes For Votes Against Abstentions Broker Non-Votes 170,344,283 4,113,802 358,196 11,797,364","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000253/0000887343-23-000253-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"say on pay"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2023-05-18"}],"fact_type":"shareholder_vote"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}