secwatch.observer — SEC 8-K summary ====================================== Issuer: AMTECH SYSTEMS INC (ASYS) CIK: 0000720500 Form: 8-K Filed at: 2025-12-15T23:59:59+00:00 Accession: 0001193125-25-319228 Event type: leadership Sentiment: neutral Materiality: 0.50 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Amtech Systems appoints Mark Weaver as Interim CFO effective Dec 16 ------------------------------------------------------------------- - Weaver replaces Wade Jenke, who resigned as CFO effective Dec 29, 2025. - Weaver, 65, served as VP/CAO at Rogers Corp (2017-2024) and other public firms. - Interim CFO role expected to end March 30, 2026; base salary of $290,000. - Appointment approved by Board on Dec 9, 2025; at-will arrangement. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000119312525319228/0001193125-25-319228-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/720500/000119312525319228/asys-20251209.htm HTML page: https://secwatch.observer/filing/0001193125-25-319228 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer