{"schema_version":"secwatch.filing_event.v1","accession":"0000917520-21-000051","form_type":"8-K","ticker":"IART","cik":"0000917520","company_name":"INTEGRA LIFESCIENCES HOLDINGS CORP","filed_at":"2021-12-01T23:59:59+00:00","discovered_at":"2026-05-14T18:04:16.238581+00:00","generated_at":"2026-06-28T04:43:11.221933+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Jan De Witte starts as Integra CEO and board member; Arduini departs Dec 1, 2021","bullets":["Jan D. De Witte commenced employment as President and CEO and was appointed to the Board, term expiring at 2022 annual meeting.","Peter J. Arduini's resignation as President, CEO, and director became effective December 1, 2021.","Appointment was previously announced on October 28, 2021; this filing formalizes the effective date."],"urls":{"canonical":"https://secwatch.observer/filing/0000917520-21-000051","json":"https://secwatch.observer/filing/0000917520-21-000051.json","markdown":"https://secwatch.observer/filing/0000917520-21-000051.md","text":"https://secwatch.observer/filing/0000917520-21-000051.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/917520/000091752021000051/0000917520-21-000051-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/917520/000091752021000051/iart-20211201.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T04:43:11.221933+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":"25d94ebe98","claim":"Jan D. De Witte was appointed as President and Chief Executive Officer at INTEGRA LIFESCIENCES HOLDINGS CORP.","evidence_excerpt":"the appointment of Jan D. De Witte to serve as its President and Chief Executive Officer","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/917520/000091752021000051/0000917520-21-000051-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"},{"claim_id":"4ef434f831","claim":"Jan D. De Witte was appointed as Director at INTEGRA LIFESCIENCES HOLDINGS CORP.","evidence_excerpt":"the Board of Directors of the Company (the “Board”) also appointed Mr. De Witte as a director of the Board effective in connection with the commencement of his employment.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/917520/000091752021000051/0000917520-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"a808d87e36","claim":"Peter J. Arduini resigned as President and Chief Executive Officer at INTEGRA LIFESCIENCES HOLDINGS CORP.","evidence_excerpt":"Peter J. Arduini’s previously-announced resignation from his position as President and Chief Executive Officer and a director of the Company became effective as of December 1, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/917520/000091752021000051/0000917520-21-000051-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"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"}