{"schema_version":"secwatch.filing_event.v1","accession":"0001111928-21-000159","form_type":"8-K","ticker":"IPGP","cik":"0001111928","company_name":"IPG PHOTONICS CORP","filed_at":"2021-10-18T23:59:59+00:00","discovered_at":"2026-05-14T18:04:11.536517+00:00","generated_at":"2026-06-28T20:12:36.859405+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"IPG Photonics Executive Chair Dr. Valentin Gapontsev takes medical leave","bullets":["Effective October 18, 2021, Dr. Valentin P. Gapontsev is on medical leave of absence from his role as Executive Chair.","No successor or interim chair was named; board oversight continues.","The company did not disclose the expected duration or further details of the leave."],"urls":{"canonical":"https://secwatch.observer/filing/0001111928-21-000159","json":"https://secwatch.observer/filing/0001111928-21-000159.json","markdown":"https://secwatch.observer/filing/0001111928-21-000159.md","text":"https://secwatch.observer/filing/0001111928-21-000159.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1111928/000111192821000159/0001111928-21-000159-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1111928/000111192821000159/ipgp202108k10182021.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T20:12:36.859405+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":"517691821f","claim":"Valentin P. Gapontsev departed as Executive Chair at IPG PHOTONICS CORP.","evidence_excerpt":"On October 18, 2021, IPG Photonics Corporation (the “Company”) announced that Dr. Valentin P. Gapontsev is taking a medical leave of absence from his role as Executive Chair of the Company, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1111928/000111192821000159/0001111928-21-000159-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"medical leave of absence"},{"label":"Role","value":"Executive Chair"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}