{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-22-006561","form_type":"8-K","ticker":"ASYS","cik":"0000720500","company_name":"AMTECH SYSTEMS INC","filed_at":"2022-04-28T23:59:59+00:00","discovered_at":"2026-05-14T18:04:03.470556+00:00","generated_at":"2026-06-26T03:41:08.239224+00:00","sec_items":["1.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Amtech subsidiary sells Billerica building for $21.5M, leaseback for 2 years","bullets":["Sale price $21.5M; $500k nonrefundable deposit paid; closing expected June 21, 2022.","BTU will lease back premises under 2-year absolute triple net lease at $1.5M/year.","Buyer's financing contingency expired April 22, 2022, making obligations effective."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-22-006561","json":"https://secwatch.observer/filing/0000950170-22-006561.json","markdown":"https://secwatch.observer/filing/0000950170-22-006561.md","text":"https://secwatch.observer/filing/0000950170-22-006561.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/720500/000095017022006561/0000950170-22-006561-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/720500/000095017022006561/asys-20220422.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T03:41:08.239224+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}