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Equibles

SIMPLEX TRADING, LLC

Position in ASYS — Amtech Systems Inc

CIK 1488542 CHICAGO, IL
Back to ASYS Full portfolio

Position in ASYS

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$97,628
+$89,082 QoQ
Shares Held
4,230
+521.1% QoQ
Ownership
0.024%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#90
of 111 holders
Holding Since
Mar 2020
11 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ASYS Over Time

Shares Held

Position Value (USD)

Position in Semiconductor Equipment & Materials

Technology · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $115,572,420 across 22 Semiconductor Equipment & Materials names. ASYS ranks #21 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 KLAC
Kla Corp
 123,044 $37,123,605
2 ASML
Asml Holding NV
 16,406 $32,638,750
3 AMAT
Applied Materials Inc /De
 32,303 $23,355,069
4 ACMR
ACM Research, Inc.
 44,316 $5,623,257
5 AMKR
Amkor Technology, Inc.
 49,051 $4,229,667
6 ENTG
Entegris Inc
 13,273 $2,387,281
7 TER
Teradyne, Inc
 3,406 $1,647,959
8 VECO
Veeco Instruments Inc
 20,077 $1,521,836

All Filings in ASYS

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11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $97,628 4,230
2025-12-31 $8,546 681
2025-06-30 $12,600 2,838
2025-03-31 $16,750 3,468
2024-12-31 $3,090 567
2022-12-31 $11,020 1,450
2021-12-31 $3,428 347
2021-03-31 $66,853 5,656
2020-09-30 $4,469 914
2020-06-30 $1,986 408
2020-03-31 $2,679 616