{"schema_version":"secwatch.filing_event.v1","accession":"0001515156-26-000057","form_type":"8-K","ticker":"ARQ","cik":"0001515156","company_name":"Arq, Inc.","filed_at":"2026-05-01T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.399834+00:00","generated_at":"2026-05-15T00:17:49.392408+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Arq finalizes separation agreements with former COO and CFO, including cash severance and equity acceleration","bullets":["COO Williamson receives 12 months' base salary (~$361,500), COBRA lump-sum, accelerated vesting of 34,270 restricted stock and 49,736 PSUs.","CFO Voncannon gets accelerated vesting of 50,000 restricted shares; no additional cash severance beyond statutory COBRA.","Both departures effective April 18, 2026; separation agreements became effective April 29, 2026 after revocation period."],"urls":{"canonical":"https://secwatch.observer/filing/0001515156-26-000057","json":"https://secwatch.observer/filing/0001515156-26-000057.json","markdown":"https://secwatch.observer/filing/0001515156-26-000057.md","text":"https://secwatch.observer/filing/0001515156-26-000057.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1515156/000151515626000057/0001515156-26-000057-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1515156/000151515626000057/ades-20260429.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T00:17:49.392408+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":"60f27aa695","claim":"Jay Voncannon departed as Chief Financial Officer at Arq, Inc..","evidence_excerpt":"Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1515156/000151515626000057/0001515156-26-000057-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased serving and terminated"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"eddd68089e","claim":"Jeremy \"Deke\" Williamson departed as Chief Operating Officer at Arq, Inc..","evidence_excerpt":"Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1515156/000151515626000057/0001515156-26-000057-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased serving and terminated"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}