secwatch.observer — SEC 8-K summary ====================================== Issuer: COHERENT CORP. (COHR) CIK: 0000820318 Form: 8-K Filed at: 2026-04-28T23:59:59+00:00 Accession: 0001193125-26-187297 Event type: leadership Sentiment: neutral Materiality: 0.55 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Coherent CSO Giovanni Barbarossa transitions to Special Advisor, retiring Sep 2026 -------------------------------------------------------------------------------- - Giovanni Barbarossa stepped down as Chief Strategy Officer effective April 27, 2026. - He will serve as Special Advisor to the CEO until his retirement in September 2026. - Transition is a planned departure; no immediate replacement announced. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/820318/000119312526187297/0001193125-26-187297-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/820318/000119312526187297/d107137d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-187297 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer