Amtech Systems, Inc.
A maker of equipment that semiconductor factories use to build and package chips — including reflow ovens for advanced packaging (used in AI accelerators), diffusion furnaces, and CMP consumables and wafer-cleaning systems sold under the PR Hoffman, Entrepix, and Intersurface Dynamics brands. The company was incorporated in Arizona in 1981 as Quartz Engineering & Materials, renamed itself Amtech in 1987, and later grew through acquisitions such as BTU International. Its name is a portmanteau of "American" (or "Advanced") and "technology."
Granted 62.6K · Bought 414.3K
Granted 63.4K · Bought 111.6K
Granted 86.7K · Sold 86.7K
Granted 38.6K
Granted 33.1K
Granted 53.3K · Sold 23.8K
Granted 8.5K
Granted 8.1K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Averick Robert MDirector, 10% owner · 50 transactions | — | 5.24M | 62.6K | 414.3K | — |
| Daigle Robert CChairman & CEO, Director · 20 transactions | — | 156.9Kas of May 2025 | 63.4K | 111.6K | — |
| Whang Jong SDirector · 4 transactions | 0% | 70.7Kas of Aug 2022 | 86.7K | — | 86.7K |
| Garnreiter MichaelDirector · 6 transactions | — | 38.6K | 38.6K | — | — |
| Ludwig Michael MDirector · 7 transactions | — | 33.1K | 33.1K | — | — |
| Whang MichaelChief Executive Officer, Director · 9 transactions | +1475% | 31.5Kas of Nov 2022 | 53.3K | — | 23.8K |
| Gibbs LisaVP and Chief Financial Officer, Director · 1 transaction | +425.1% | 10.5Kas of Nov 2022 | 8.5K | — | — |
| Jakwani Asif Y.Director · 1 transaction | — | 8.1K | 8.1K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: +415.4K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.