Citadel Advisors
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Citadel Advisors’s ACM Research ACMR Stock Holding History

Citadel Advisors’s Portfolio ACMR Stock Details ACMR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$11.1M Sell
283,000
-16,800
-6% -$892K ﹤0.01% 3104
2025
Q4 		$11.8M Buy
299,800
+141,000
+89% +$5.25M ﹤0.01% 3042
2025
Q3 		$6.21M Sell
158,800
-66,500
-30% -$1.97M ﹤0.01% 3968
2025
Q2 		$5.84M Sell
225,300
-25,300
-10% -$569K ﹤0.01% 3850
2025
Q1 		$5.85M Buy
250,600
+81,100
+48% +$1.85M ﹤0.01% 3637
2024
Q4 		$2.56M Buy
169,500
+3,200
+2% +$57.8K ﹤0.01% 5135
2024
Q3 		$3.38M Sell
166,300
-70,400
-30% -$1.35M ﹤0.01% 4586
2024
Q2 		$5.46M Buy
236,700
+122,200
+107% +$3.09M ﹤0.01% 3610
2024
Q1 		$3.34M Buy
114,500
+16,700
+17% +$382K ﹤0.01% 4606
2023
Q4 		$1.91M Buy
97,800
+12,500
+15% +$219K ﹤0.01% 5443
2023
Q3 		$1.54M Buy
85,300
+25,900
+44% +$385K ﹤0.01% 5700
2023
Q2 		$777K Buy
59,400
+8,500
+17% +$89.5K ﹤0.01% 6987
2023
Q1 		$596K Sell
50,900
-10,300
-17% -$119K ﹤0.01% 7957
2022
Q4 		$472K Buy
61,200
+14,900
+32% +$126K ﹤0.01% 8366
2022
Q3 		$577K Sell
46,300
-3,900
-8% -$63.4K ﹤0.01% 8148
2022
Q2 		$845K Sell
50,200
-70,000
-58% -$1.08M ﹤0.01% 7422
2022
Q1 		$2.49M Buy
120,200
+57,200
+91% +$1.44M ﹤0.01% 5616
2021
Q4 		$1.79M Sell
63,000
-150,000
-70% -$4.74M ﹤0.01% 6495
2021
Q3 		$7.81M Sell
213,000
-25,800
-11% -$789K ﹤0.01% 3498
2021
Q2 		$8.14M Buy
238,800
+106,500
+80% +$2.93M ﹤0.01% 3441
2021
Q1 		$3.56M Buy
132,300
+46,200
+54% +$1.53M ﹤0.01% 5034
2020
Q4 		$2.33M Buy
86,100
+2,700
+3% +$69.1K ﹤0.01% 5037
2020
Q3 		$1.92M Buy
83,400
+36,900
+79% +$1.05M ﹤0.01% 4785
2020
Q2 		$967K Buy
46,500
+14,100
+44% +$231K ﹤0.01% 5894
2020
Q1 		$320K Buy
+32,400
New +$349K ﹤0.01% 7212

Other funds holding ACMR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return
PCP
Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

Citadel Advisors's ACMR Position: Q1 2026 in Review

Citadel Advisors increased its ACM Research (ACMR) stake by 42% in Q1 2026, buying an estimated $3.2M and bringing the position to 203,378 shares worth $8M. The position accounts for ﹤0.01% of the portfolio, ranked #3585.

Citadel Advisors first reported a position in ACMR in Q2 2019 and has held it in 27 quarters since. The position peaked at $15.8M in Q2 2024. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Citadel Advisors held 203,378 shares of ACM Research worth $8M as of Q1 2026.
  • Citadel Advisors bought 60,356 ACM Research shares in Q1 2026, an estimated $3.2M.
  • ACM Research made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #3585 holding.
  • Citadel Advisors first reported a position in ACM Research in Q2 2019 and has held it in 27 quarters since.
  • Citadel Advisors's ACM Research position peaked at $15.8M in Q2 2024.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

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