Citadel Advisors
ASYS icon

Citadel Advisors’s Amtech Systems ASYS Stock Holding History

Citadel 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 		$1.25M Sell
106,914
-17,929
-14% -$242K ﹤0.01% 7170
2025
Q4 		$1.57M Buy
124,843
+46,389
+59% +$418K ﹤0.01% 6415
2025
Q3 		$726K Buy
78,454
+40,560
+107% +$248K ﹤0.01% 8251
2025
Q2 		$168K Sell
37,894
-6,512
-15% -$25.4K ﹤0.01% 10851
2025
Q1 		$214K Buy
44,406
+4,150
+10% +$21.4K ﹤0.01% 10320
2024
Q4 		$219K Sell
40,256
-2,040
-5% -$11.6K ﹤0.01% 10280
2024
Q3 		$245K Buy
42,296
+7,458
+21% +$45.4K ﹤0.01% 9724
2024
Q2 		$204K Sell
34,838
-31,577
-48% -$171K ﹤0.01% 9890
2024
Q1 		$359K Buy
66,415
+20,158
+44% +$90.8K ﹤0.01% 9084
2023
Q4 		$194K Buy
46,257
+34,463
+292% +$234K ﹤0.01% 10003
2023
Q3 		$89.9K Sell
11,794
-25,400
-68% -$231K ﹤0.01% 11030
2023
Q2 		$356K Sell
37,194
-7,691
-17% -$69.9K ﹤0.01% 8666
2023
Q1 		$428K Buy
44,885
+17,368
+63% +$163K ﹤0.01% 8622
2022
Q4 		$209K Buy
27,517
+7,794
+40% +$70.6K ﹤0.01% 10047
2022
Q3 		$168K Buy
+19,723
New +$182K ﹤0.01% 10588
2021
Q4 		– Sell
-19,460
Closed -$224K – 13758
2021
Q3 		$222K Buy
+19,460
New +$199K ﹤0.01% 11757
2021
Q2 		– Sell
-21,913
Closed -$225K – 13631
2021
Q1 		$259K Buy
+21,913
New +$203K ﹤0.01% 11163
2020
Q3 		– Sell
-10,172
Closed -$50K – 10045
2020
Q2 		$50K Buy
+10,172
New +$50.3K ﹤0.01% 9302
2019
Q2 		– Sell
-18,350
Closed -$98K – 9141
2019
Q1 		$98K Sell
18,350
-938
-5% -$4.63K ﹤0.01% 8564
2018
Q4 		$87K Buy
19,288
+3,905
+25% +$19.1K ﹤0.01% 8304
2018
Q3 		$82K Sell
15,383
-10,758
-41% -$59K ﹤0.01% 8645
2018
Q2 		$158K Sell
26,141
-26,250
-50% -$205K ﹤0.01% 8035
2018
Q1 		$383K Buy
52,391
+3,917
+8% +$35.3K ﹤0.01% 6332
2017
Q4 		$488K Buy
48,474
+31,331
+183% +$383K ﹤0.01% 5688
2017
Q3 		$205K Buy
+17,143
New +$172K ﹤0.01% 6652

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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
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

Citadel Advisors's ASYS Position: Q1 2026 in Review

Citadel Advisors reduced its Amtech Systems (ASYS) stake by 14% in Q1 2026, selling an estimated $242K and leaving 106,914 shares worth $1.25M. The position accounts for ﹤0.01% of the portfolio, ranked #7170.

Citadel Advisors first reported a position in ASYS in Q3 2017 and has held it in 25 quarters since. The position peaked at $1.57M in Q4 2025. 79 funds tracked by Wall St. Rank hold ASYS as of Q1 2026.

  • Citadel Advisors held 106,914 shares of Amtech Systems worth $1.25M as of Q1 2026.
  • Citadel Advisors sold 17,929 Amtech Systems shares in Q1 2026, an estimated $242K.
  • Amtech Systems made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7170 holding.
  • Citadel Advisors first reported a position in Amtech Systems in Q3 2017 and has held it in 25 quarters since.
  • Citadel Advisors's Amtech Systems position peaked at $1.57M in Q4 2025.
  • 79 funds tracked by Wall St. Rank held Amtech Systems as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.