{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-133898","form_type":"8-K","ticker":"CBT","cik":"0000016040","company_name":"CABOT CORP","filed_at":"2025-06-03T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.980129+00:00","generated_at":"2026-05-20T01:36:36.899298+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Cabot EVP and Reinforcement Materials President Kalkstein to retire; Wood appointed successor","bullets":["Hobart Kalkstein will retire as EVP and President, Reinforcement Materials, effective Jan 5, 2026; steps down on June 15, 2025.","Matthew Wood appointed SVP and President, Reinforcement Materials segment, effective June 15, 2025.","Kalkstein remains in advisory capacity through retirement to ensure smooth transition.","Transition agreement extends option exercise period to 36 months and provides half salary during 12-month non-compete."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-133898","json":"https://secwatch.observer/filing/0001193125-25-133898.json","markdown":"https://secwatch.observer/filing/0001193125-25-133898.md","text":"https://secwatch.observer/filing/0001193125-25-133898.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/16040/000119312525133898/0001193125-25-133898-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/16040/000119312525133898/d32655d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T01:36:36.899298+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":"37a1208a42","claim":"Matthew Wood was appointed as Senior Vice President and President, Reinforcement Materials Segment at CABOT CORP.","evidence_excerpt":"The Board has appointed Matthew Wood a Senior Vice President of the Company, and Mr. Wood will succeed Mr. Kalkstein as President, Reinforcement Materials Segment.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/16040/000119312525133898/0001193125-25-133898-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Senior Vice President and President, Reinforcement Materials Segment"}],"fact_type":"executive_change"},{"claim_id":"8552e47538","claim":"Hobart C. Kalkstein departed as Executive Vice President and President, Reinforcement Materials Segment at CABOT CORP.","evidence_excerpt":"On May 30, 2025, Hobart C. Kalkstein, Executive Vice President and President, Reinforcement Materials Segment of Cabot Corporation (the \"Company\"), informed the Company’s Board of Directors (the \"Board\") of his decision to step down from those positions, effective June 15, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/16040/000119312525133898/0001193125-25-133898-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"stepped down"},{"label":"Role","value":"Executive Vice President and President, Reinforcement Materials Segment"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}