{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-048602","form_type":"8-K","ticker":"WCN","cik":"0001318220","company_name":"Waste Connections, Inc.","filed_at":"2023-04-24T23:59:59+00:00","discovered_at":"2026-05-14T18:03:38.360361+00:00","generated_at":"2026-06-16T18:35:12.656537+00:00","sec_items":["5.02","7.01","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Waste Connections founder Ronald Mittelstaedt returns as President and CEO; Jackman departs","bullets":["Worthing F. Jackman terminated without cause as President & CEO and Board member, effective April 23, 2023.","Founder Ronald J. Mittelstaedt appointed President & CEO; was Executive Chairman since 2019.","Michael W. Harlan, lead independent director, becomes non-executive Chairman of the Board.","Mittelstaedt's salary set at $1,100,000 with 150% target bonus; equity target 380% of salary.","Company reaffirms 2023 full-year financial outlook; Q1 earnings call on April 26, 2023."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-048602","json":"https://secwatch.observer/filing/0001104659-23-048602.json","markdown":"https://secwatch.observer/filing/0001104659-23-048602.md","text":"https://secwatch.observer/filing/0001104659-23-048602.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1318220/000110465923048602/0001104659-23-048602-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1318220/000110465923048602/tm2313377d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-16T18:35:12.656537+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":"8efea3a0e6","claim":"Worthing F. Jackman departed as President and Chief Executive Officer at Waste Connections, Inc..","evidence_excerpt":"announced the departure of Worthing F. Jackman from his role as President and Chief Executive Officer of the Company, effective April 23, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1318220/000110465923048602/0001104659-23-048602-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"departed"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"f3d93e3072","claim":"Ronald J. Mittelstaedt was appointed as President and Chief Executive Officer at Waste Connections, Inc..","evidence_excerpt":"Ronald J. Mittelstaedt, the Company’s Executive Chairman, succeeded Mr. Jackman as the Company’s President and Chief Executive Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1318220/000110465923048602/0001104659-23-048602-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}