0000950170-24-030819.txt : 20240313 0000950170-24-030819.hdr.sgml : 20240313 20240313163152 ACCESSION NUMBER: 0000950170-24-030819 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240311 FILED AS OF DATE: 20240313 DATE AS OF CHANGE: 20240313 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: LUDWIG MICHAEL M CENTRAL INDEX KEY: 0001256949 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-11412 FILM NUMBER: 24746401 MAIL ADDRESS: STREET 1: C/O AMTECH SYSTEMS, INC. STREET 2: 131 S CLARK DRIVE CITY: TEMPE STATE: AZ ZIP: 85288 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AMTECH SYSTEMS INC CENTRAL INDEX KEY: 0000720500 STANDARD INDUSTRIAL CLASSIFICATION: SPECIAL INDUSTRY MACHINERY, NEC [3559] ORGANIZATION NAME: 06 Technology IRS NUMBER: 860411215 STATE OF INCORPORATION: AZ FISCAL YEAR END: 0930 BUSINESS ADDRESS: STREET 1: 58 S RIVER DRIVE SUITE 370 CITY: TEMPE STATE: AZ ZIP: 85288 BUSINESS PHONE: 4809675146 MAIL ADDRESS: STREET 1: 58 S RIVER DRIVE SUITE 370 CITY: TEMPE STATE: AZ ZIP: 85288 FORMER COMPANY: FORMER CONFORMED NAME: QUARTZ ENGINEERING & MATERIALS INC DATE OF NAME CHANGE: 19870715 4 1 ownership.xml 4 X0508 4 2024-03-11 0000720500 AMTECH SYSTEMS INC ASYS 0001256949 LUDWIG MICHAEL M C/O AMTECH SYSTEMS, INC. 58 S. RIVER DRIVE, SUITE 370 TEMPE AZ 85288 true false false false false Amtech Systems, Inc. $0.01 par value common stock 2024-03-11 4 A false 2000 4.73 A 16689 D /s/ Lisa D. Gibbs, by power of attorney 2024-03-13