{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-287943","form_type":"8-K","ticker":"MKSI","cik":"0001049502","company_name":"MKS INC","filed_at":"2023-12-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:28.031004+00:00","generated_at":"2026-06-07T18:32:13.633992+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"MKS Instruments CFO Seth Bagshaw to retire effective April 1, 2024","bullets":["Seth H. Bagshaw, EVP, CFO and Treasurer, will retire April 1, 2024, after 18 years at MKS.","He will serve as special advisor through May 1, 2024, to ensure a smooth transition.","Company has retained an executive search firm to find his successor.","Bagshaw has been CFO since 2010 and helped build MKS into a top-2 player in 20 product categories."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-287943","json":"https://secwatch.observer/filing/0001193125-23-287943.json","markdown":"https://secwatch.observer/filing/0001193125-23-287943.md","text":"https://secwatch.observer/filing/0001193125-23-287943.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1049502/000119312523287943/0001193125-23-287943-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1049502/000119312523287943/d621921d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T18:32:13.633992+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":"9b75e07124","claim":"Seth H. Bagshaw departed as Executive Vice President, Chief Financial Officer and Treasurer at MKS INC.","evidence_excerpt":"On December 1, 2023, Seth H. Bagshaw, Executive Vice President, Chief Financial Officer and Treasurer of MKS Instruments, Inc. (the “Company”) notified the Company that he intends to retire as Executive Vice President, Chief Financial Officer and Treasurer of the Company effective April 1, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1049502/000119312523287943/0001193125-23-287943-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Executive Vice President, Chief Financial Officer and Treasurer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}