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SC 13D/A

Beneficial Ownership Report

AMTECH SYSTEMS INC Filed 2022-02-24 Acc 0001104659-22-026737

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SC 13D/A Beneficial Ownership Report , tm227649-2_sc13da.htm

Around this filing

2024-05-14 SC 13D/A Beneficial Ownership Report
2022-02-24 SC 13D/A Beneficial Ownership Report
2022-02-24 4 Director bought 25,500 shares at an average $9.70 ($247,450)
2021-02-18 SC 13D/A Beneficial Ownership Report

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