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SC 13G ·Filed Oct 9, 2026

ASYS

AMTECH SYSTEMS INC
NEUTRAL
Impact 3/10
Horizonweeks Processed18d ago SEC0000814133-26-000112
Passive investor 5%+ stake
Actionable Insight • Neutral

Wasatch's new 6.8% passive stake signals institutional interest but carries no activist intent. Monitor future 13G/H filings for any stake increases or conversion to 13D, which would indicate a shift in strategy. The stake size is notable but routine for a passive fund.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d
ASYS ▼ -22.19% at T+5d
NEUTRAL call -22.19% · α vs SPY -20.22% · entry $16.45 → $12.80
Next anchor: T+20d in 10d
Latest observation: T+10 -10.69% FF3 residual α
Entry = T+0 close
Oct 9, 2026
via day close
T+1d
-2.67%
call -2.67% · α -2.61%
$16.01
settled 15d ago
T+5d
-22.19%
call -22.19% · α -20.22%
$12.80
settled 11d ago
T+20d
Pending
in 10d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Wasatch Advisors LP filed a Schedule 13G disclosing a 6.8% passive stake in Amtech Systems Inc (ASYS) as of September 30, 2026. This is a new position for Wasatch, a large asset manager, indicating a meaningful but non-activist investment in the company.

Key Financial Metrics

Stake
6.8%
Investor
Wasatch Advisors LP
Investor Type
mutual fund

Key Facts

  • Wasatch Advisors LP reported beneficial ownership of 1,184,904 shares of Amtech Systems Inc common stock.
  • The stake represents 6.8% of shares outstanding as of September 30, 2026.
  • This is a new filing (not an amendment) for Wasatch, indicating a new position.
  • The filing is under Rule 13d-1(b), confirming a passive investment intent with no control or activism purpose.
  • Wasatch Advisors LP is a registered investment adviser (IA) based in Salt Lake City, Utah.

Financial Impact

6.8% passive stake valued at approximately $1.18 million based on 1,184,904 shares (no per-share price provided in filing).

ownership concentration

Risk Factors

  • Wasatch could reduce or exit the position without public notice (13G only requires annual updates unless material changes occur).
  • No indication of activist intent — the filing explicitly disclaims control or influence purpose.

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13G Filing (Primary)0000814133-26-000112
Document: 0000814133-26-000112-index.html0000814133-26-000112
Document: 0000814133-26-000112.txt0000814133-26-000112
7 reports for ASYS
Performance horizon
100% Hit rate @ T+1 3 of 3 directional calls Went positive at some point 3 of 3 best @ T+60▲ +30.89%Jun 1, 2026
Filters
Rows
Reports for ASYS — sortable, filterable
TypeNow
Oct 9, 2026
18d ago
SC 13G
NEUTRAL ★ 3/10
$16.45 $16.01▼ −2.67%▼ −2.61%$13.34 (−18.91%)
Aug 15, 2026
10w ago
Institutional Cluster
BULLISH ★ 5/10
$16.86 $16.88▲ +0.12%▲ +0.79%$13.34 (−20.88%)
Aug 5, 2026
11w ago
8-K
BULLISH ★ 7/10
$14.95 $15.53▲ +3.88%▲ +3.27%$13.34 (−10.77%)
Jun 1, 2026
21w ago
424B5
BEARISH ★ 6/10
$21.95 $21.07▲ +4.01%▲ +3.32%$13.34 (+39.23%)
Apr 30, 2026
25w ago
8-K
NEUTRAL ★ 2/10
$17.41 $17.13▼ −1.61%▼ −1.83%$13.34 (−23.38%)
Mar 24, 2026
31w ago
EFFECT
NEUTRAL ★ 4/10
$11.48 $12.02▲ +4.70%▲ +4.14%$13.34 (+16.20%)
Mar 13, 2026
32w ago
S-3
NEUTRAL ★ 3/10
$11.65 $11.31▼ −2.92%▼ −3.19%$13.34 (+14.51%)
Showing 7 of 7

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Report published Oct 9, 2026