Thomas B Sabol, Chief Financial Officer at Amtech Systems, bought ASYS on Sep 14, 2026

Data as of Oct 16

▲ BUY$28.3K2,000 shares at $14.13Thomas B Sabol Chief Financial OfficerASYS Amtech Systems Inc

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Traded: Sep 14, 2026
Disclosed: Sep 16, 2026
Filed: 2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

ASYSSimilar stocks (XLI — its sector index fund), rebased to ASYS's price on the disclosure day

ASYS since disclosure

−7.6%

Similar stocks (XLI) since disclosure

−0.6%

XLI — its sector index fund

Change in closing price from Sep 16, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

⚪ CFO buys $25K+ of own stock — fired on this trade
Not enough evidence · In past tests: 3.6 percentage points better than similar stocks over 3 months · 2,178 tries
⚪ CFO buys $25K+ of own liquid stock — fired on this trade
Not enough evidence · In past tests: 2.0 percentage points better than similar stocks over 3 months · 1,426 tries

What this rule is doing with ASYS right now

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