secwatch.observer — SEC 8-K summary ====================================== Issuer: AMTECH SYSTEMS INC (ASYS) CIK: 0000720500 Form: 8-K Filed at: 2021-11-19T23:59:59+00:00 Accession: 0000950170-21-004811 Event type: other_material Sentiment: neutral Materiality: 0.50 Item codes: 4.01, 5.03, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Amtech dismisses auditor MHM, appoints Grant Thornton; reinstates shareholder special meeting right -------------------------------------------------------------------------------- - Dismissed Mayer Hoffman McCann P.C. as auditor effective Nov 17, 2021; no disagreements in prior two fiscal years. - Appointed Grant Thornton LLP as independent auditor for FY ending Sep 30, 2022, effective Nov 19. - Board reinstated shareholder right to call special meeting; threshold lowered to 35% of voting shares. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000095017021004811/0000950170-21-004811-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/720500/000095017021004811/asys-20211116.htm HTML page: https://secwatch.observer/filing/0000950170-21-004811 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer