Dimensional Fund Advisors LP Amtech Systems Inc Transaction History

Dimensional Fund Advisors LP

$449 Billion
Q3 2025

A detailed history of Dimensional Fund Advisors LP transactions in Amtech Systems Inc stock. As of the latest transaction made, Dimensional Fund Advisors LP holds 849,815 shares of ASYS stock, worth $6.14 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

849,815

Previous 909,566 6.57%

Holding current value

$6.14 Million

Previous $4.04 Million 96.98%

% of portfolio

0.0%

Previous 0.0%

20 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$4.43 - $9.65 $264,696 - $576,597	-59,751 Reduced 6.57%	849,815 $7.95 Million
Q2 2025 Aug 12, 2025	SELL	$3.35 - $4.81 $60,501 - $86,868	-18,060 Reduced 1.95%	909,566 $4.04 Million
Q1 2025 May 13, 2025	SELL	$4.77 - $5.7 $17,038 - $20,360	-3,572 Reduced 0.38%	927,626 $4.48 Million
Q4 2024 Feb 13, 2025	BUY	$5.42 - $6.01 $38,308 - $42,478	7,068 Added 0.76%	931,198 $5.08 Million
Q3 2024 Nov 07, 2024	SELL	$5.25 - $6.76 $97,146 - $125,087	-18,504 Reduced 1.96%	924,130 $5.36 Million

Q2 2024 Aug 09, 2024	SELL	$4.65 - $6.63 $362,504 - $516,861	-77,958 Reduced 7.64%	942,634 $5.52 Million
Q1 2024 May 10, 2024	SELL	$3.44 - $5.41 $351,168 - $552,274	-102,084 Reduced 9.09%	1,020,592 $5.52 Million
Q4 2023 Feb 07, 2024	SELL	$3.69 - $8.0 $14,962 - $32,440	-4,055 Reduced 0.36%	1,122,676 $4.72 Million
Q3 2023 Nov 09, 2023	SELL	$7.32 - $10.91 $99,588 - $148,430	-13,605 Reduced 1.19%	1,126,731 $8.59 Million
Q2 2023 Aug 09, 2023	SELL	$8.5 - $10.21 $136,391 - $163,829	-16,046 Reduced 1.39%	1,140,336 $10.9 Million
Q1 2023 May 12, 2023	BUY	$7.98 - $11.18 $65,978 - $92,436	8,268 Added 0.72%	1,156,382 $11 Million
Q4 2022 Feb 09, 2023	BUY	$7.54 - $11.05 $98,027 - $143,661	13,001 Added 1.15%	1,148,114 $8.73 Million
Q3 2022 Nov 10, 2022	BUY	$6.87 - $12.93 $7,941 - $14,947	1,156 Added 0.1%	1,135,113 $9.65 Million
Q2 2022 Aug 12, 2022	BUY	$7.25 - $10.19 $89,465 - $125,744	12,340 Added 1.1%	1,133,957 $8.28 Million
Q1 2022 May 13, 2022	BUY	$8.07 - $10.96 $172,875 - $234,785	21,422 Added 1.95%	1,121,617 $11.3 Million
Q4 2021 Feb 09, 2022	BUY	$8.62 - $15.51 $10,447 - $18,798	1,212 Added 0.11%	1,100,195 $10.9 Million
Q3 2021 Nov 12, 2021	BUY	$8.88 - $12.5 $51,628 - $72,675	5,814 Added 0.53%	1,098,983 $12.6 Million
Q2 2021 Aug 12, 2021	BUY	$8.79 - $14.13 $263,128 - $422,981	29,935 Added 2.82%	1,093,169 $10.5 Million
Q1 2021 May 14, 2021	SELL	$6.36 - $12.32 $241,540 - $467,888	-37,978 Reduced 3.45%	1,063,234 $12.6 Million
Q4 2020 Feb 25, 2021	BUY	$5.05 - $7.13 $5.56 Million - $7.85 Million	1,101,212 New	1,101,212 $7.03 Million

Others Institutions Holding ASYS

# of Institutions

Shares Held

6.78M

Call Options Held

38.2K

Put Options Held

View Full List

About AMTECH SYSTEMS INC

Ticker ASYS
Exchange NASDAQ
Sector Technology
Industry Semiconductor Equipment & Materials
Shares Outstandng 13,889,300
Market Cap $100M
Description
Amtech Systems, Inc. manufactures and sells capital equipment and related consumables for use in fabricating silicon carbide (SiC), silicon power devices, analog and discrete devices, electronic assemblies, and light-emitting diodes (LEDs) worldwide. The company operates in Semiconductor and Material and Substrate segments. The Semiconductor seg...

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Dimensional Fund Advisors LP Amtech Systems Inc Transaction History