Dimensional Fund Advisors
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Dimensional Fund Advisors’s Amtech Systems ASYS Stock Holding History

Dimensional Fund Advisors’s Portfolio ASYS Stock Details ASYS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$6.18M Sell
529,351
-142,756
-21% -$1.92M ﹤0.01% 2429
2025
Q4 		$8.44M Sell
672,107
-177,708
-21% -$1.6M ﹤0.01% 2344
2025
Q3 		$7.87M Sell
849,815
-59,751
-7% -$365K ﹤0.01% 2390
2025
Q2 		$4.04M Sell
909,566
-18,060
-2% -$70.6K ﹤0.01% 2583
2025
Q1 		$4.48M Sell
927,626
-3,572
-0.4% -$18.4K ﹤0.01% 2527
2024
Q4 		$5.08M Buy
931,198
+7,068
+0.8% +$40.1K ﹤0.01% 2527
2024
Q3 		$5.36M Sell
924,130
-18,504
-2% -$113K ﹤0.01% 2506
2024
Q2 		$5.52M Sell
942,634
-77,958
-8% -$421K ﹤0.01% 2466
2024
Q1 		$5.52M Sell
1,020,592
-102,084
-9% -$460K ﹤0.01% 2522
2023
Q4 		$4.72M Sell
1,122,676
-4,055
-0.4% -$27.5K ﹤0.01% 2575
2023
Q3 		$8.59M Sell
1,126,731
-13,605
-1% -$124K ﹤0.01% 2337
2023
Q2 		$10.9M Sell
1,140,336
-16,046
-1% -$146K ﹤0.01% 2222
2023
Q1 		$11M Buy
1,156,382
+8,268
+0.7% +$77.7K ﹤0.01% 2184
2022
Q4 		$8.73K Buy
1,148,114
+13,001
+1% +$118K ﹤0.01% 2257
2022
Q3 		$9.65M Buy
1,135,113
+1,156
+0.1% +$10.7K ﹤0.01% 2171
2022
Q2 		$8.28M Buy
1,133,957
+12,340
+1% +$107K ﹤0.01% 2271
2022
Q1 		$11.3M Buy
1,121,617
+21,422
+2% +$205K ﹤0.01% 2240
2021
Q4 		$10.9M Buy
1,100,195
+1,212
+0.1% +$14K ﹤0.01% 2278
2021
Q3 		$12.6M Buy
1,098,983
+5,814
+0.5% +$59.5K ﹤0.01% 2221
2021
Q2 		$10.5M Buy
1,093,169
+29,935
+3% +$307K ﹤0.01% 2340
2021
Q1 		$12.6M Sell
1,063,234
-37,978
-3% -$351K ﹤0.01% 2235
2020
Q4 		$7.03M Sell
1,101,212
-40,733
-4% -$242K ﹤0.01% 2404
2020
Q3 		$5.58M Sell
1,141,945
-7,505
-0.7% -$38.7K ﹤0.01% 2417
2020
Q2 		$5.6M Sell
1,149,450
-30,926
-3% -$153K ﹤0.01% 2442
2020
Q1 		$5.13M Buy
1,180,376
+1,314
+0.1% +$7.39K ﹤0.01% 2395
2019
Q4 		$8.44M Sell
1,179,062
-56,079
-5% -$325K ﹤0.01% 2416
2019
Q3 		$6.55M Sell
1,235,141
-5,338
-0.4% -$29.3K ﹤0.01% 2506
2019
Q2 		$6.82M Sell
1,240,479
-13,558
-1% -$82.7K ﹤0.01% 2552
2019
Q1 		$6.68M Sell
1,254,037
-7,349
-0.6% -$36.3K ﹤0.01% 2554
2018
Q4 		$5.71M Buy
1,261,386
+10,562
+0.8% +$51.6K ﹤0.01% 2566
2018
Q3 		$6.68M Buy
1,250,824
+164,357
+15% +$901K ﹤0.01% 2592
2018
Q2 		$6.57M Buy
1,086,467
+227,486
+26% +$1.77M ﹤0.01% 2581
2018
Q1 		$6.29M Buy
858,981
+158,521
+23% +$1.43M ﹤0.01% 2545
2017
Q4 		$7.05M Buy
700,460
+147,259
+27% +$1.8M ﹤0.01% 2497
2017
Q3 		$6.63M Buy
553,201
+86,518
+19% +$871K ﹤0.01% 2512
2017
Q2 		$3.94M Buy
466,683
+52,701
+13% +$385K ﹤0.01% 2667
2017
Q1 		$2.28M Buy
413,982
+21,630
+6% +$118K ﹤0.01% 2817
2016
Q4 		$1.67M Sell
392,352
-15,422
-4% -$69.9K ﹤0.01% 2866
2016
Q3 		$2.02M Hold
407,774
– – ﹤0.01% 2781
2016
Q2 		$2.43M Buy
407,774
+28
+0% +$178 ﹤0.01% 2719
2016
Q1 		$2.65M Buy
407,746
+16,843
+4% +$94.9K ﹤0.01% 2695
2015
Q4 		$2.45M Sell
390,903
-9,860
-2% -$50.9K ﹤0.01% 2740
2015
Q3 		$1.72M Sell
400,763
-9,421
-2% -$62.2K ﹤0.01% 2862
2015
Q2 		$4.26M Sell
410,184
-527
-0.1% -$5.85K ﹤0.01% 2618
2015
Q1 		$4.59M Buy
410,711
+62,446
+18% +$628K ﹤0.01% 2583
2014
Q4 		$3.54M Buy
348,265
+5,557
+2% +$52.2K ﹤0.01% 2680
2014
Q3 		$3.67M Sell
342,708
-7,107
-2% -$74.7K ﹤0.01% 2645
2014
Q2 		$4.28M Buy
349,815
+6,696
+2% +$66.4K ﹤0.01% 2630
2014
Q1 		$4.18M Buy
343,119
+6,418
+2% +$66.9K ﹤0.01% 2619
2013
Q4 		$2.34M Buy
336,701
+5,221
+2% +$40.6K ﹤0.01% 2815
2013
Q3 		$2.42M Buy
331,480
+1,415
+0.4% +$9.46K ﹤0.01% 2801
2013
Q2 		$2.1M Buy
+330,065
New +$1.48M ﹤0.01% 2815

Other funds holding ASYS

First Eagle Investment Management
First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
PRCP
Pacific Ridge Capital Partners Lake Oswego, Oregon $462M AUM 40.76% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Dimensional Fund Advisors's ASYS Position: Q1 2026 in Review

Dimensional Fund Advisors reduced its Amtech Systems (ASYS) stake by 21% in Q1 2026, selling an estimated $1.92M and leaving 529,351 shares worth $6.18M. The position accounts for ﹤0.01% of the portfolio, ranked #2429.

Dimensional Fund Advisors first reported a position in ASYS in Q2 2013 and has held it in 52 quarters since. The position peaked at $12.6M in Q1 2021. 79 funds tracked by Wall St. Rank hold ASYS as of Q1 2026.

  • Dimensional Fund Advisors held 529,351 shares of Amtech Systems worth $6.18M as of Q1 2026.
  • Dimensional Fund Advisors sold 142,756 Amtech Systems shares in Q1 2026, an estimated $1.92M.
  • Amtech Systems made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2429 holding.
  • Dimensional Fund Advisors first reported a position in Amtech Systems in Q2 2013 and has held it in 52 quarters since.
  • Dimensional Fund Advisors's Amtech Systems position peaked at $12.6M in Q1 2021.
  • 79 funds tracked by Wall St. Rank held Amtech Systems as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.