ASYS insider buying

2 cluster buys

AMTECH SYSTEMS INC · Technology

When two or more insiders at AMTECH SYSTEMS INC buy ASYS on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in ASYS plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters
2
Distinct insiders
3
Total bought
$981.9K
Market cap
$328.9M

Detected clusters

  • Dec 12, 2024 – May 16, 2025
    Detected May 16, 2025
    High conviction3 insiders
    Total bought
    $760.8K
    Market cap
    $328.9M
  • May 10 – Aug 9, 2024
    Detected Aug 9, 2024
    2 insiders
    Total bought
    $221.2K
    Market cap
    $328.9M

All notable open-market buys in ASYS

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

DateInsiderSharesPriceValueFiling
May 16, 2025
Director, Chairman & CEO
355$3.48$1.2KSEC ↗
May 15, 2025
Director, Chairman & CEO
2,498$3.49$8.7KSEC ↗
May 14, 2025
Director, 10% Owner
46,272$3.46$160.1KSEC ↗
May 14, 2025
Director, Chairman & CEO
5,000$3.48$17.4KSEC ↗
Mar 10, 2025
Director, 10% Owner
10,000$4.86$48.6KSEC ↗
Mar 5, 2025
Director, 10% Owner
1,523$4.85$7.4KSEC ↗
Mar 3, 2025
Director, 10% Owner
5,000$4.89$24.5KSEC ↗
Feb 13, 2025
Director, 10% Owner
22,000$4.85$106.7KSEC ↗
Feb 7, 2025
Director, 10% Owner
54,789$5.02$275.0KSEC ↗
Dec 12, 2024
Director, 10% Owner
19,500$5.70$111.2KSEC ↗
Aug 9, 2024
Director, 10% Owner
25,000$5.53$138.3KSEC ↗
May 14, 2024
Director, 10% Owner
2,784$5.45$15.2KSEC ↗
May 13, 2024
Director, 10% Owner
304$5.16$1.6KSEC ↗
May 10, 2024
Director, 10% Owner
12,723$5.20$66.2KSEC ↗

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ASYS insider buying — FAQ

Are insiders buying ASYS stock?
Yes — 3 distinct insiders have bought ASYS (AMTECH SYSTEMS INC) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was May 16, 2025.
How much ASYS stock have insiders bought?
Insiders have bought a combined $981.9K of ASYS across 14 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in ASYS?
A cluster buy is two or more distinct AMTECH SYSTEMS INC insiders — officers, directors, or 10% owners — each buying ASYS on the open market within a rolling window. ASYS has 2 detected cluster buys to date.
Where does this ASYS insider trading data come from?
Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in ASYS

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy ASYS within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding ASYS.