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SC 13D/A

Beneficial Ownership Report

AMTECH SYSTEMS INC Filed 2017-08-24 Acc 0000893838-17-000065

Documents 1

SC 13D/A Beneficial Ownership Report , amtech13dam1082417.htm

Around this filing

2017-12-18 SC 13D/A Beneficial Ownership Report
2017-08-24 SC 13D/A Beneficial Ownership Report
2017-08-23 8-K Regulation FD disclosure · Other events
2017-08-18 424B5 Prospectus
2017-08-18 8-K Regulation FD disclosure
2017-08-18 8-K Regulation FD disclosure
2016-03-18 SC 13D/A Beneficial Ownership Report

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