Ken Griffin Acm Research, Inc. Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Acm Research, Inc. stock. As of the latest transaction made, Citadel Advisors LLC holds 394,969 shares of ACMR stock, worth $12.5 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

394,969

Previous 204,024 93.59%

Holding current value

$12.5 Million

Previous $5.28 Million 192.49%

% of portfolio

0.0%

Previous 0.0%

25 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$23.92 - $39.13 $4.57 Million - $7.47 Million	190,945 Added 93.59%	394,969 $15.5 Million
Q2 2025 Aug 14, 2025	SELL	$18.33 - $26.51 $4.57 Million - $6.6 Million	-249,117 Reduced 54.98%	204,024 $5.28 Million
Q1 2025 May 15, 2025	BUY	$15.41 - $29.98 $1.5 Million - $2.92 Million	97,400 Added 27.38%	453,141 $10.6 Million
Q4 2024 Feb 14, 2025	SELL	$14.1 - $23.6 $1.83 Million - $3.07 Million	-129,874 Reduced 26.74%	355,741 $5.37 Million
Q3 2024 Nov 14, 2024	SELL	$15.01 - $25.52 $3.02 Million - $5.13 Million	-201,058 Reduced 29.28%	485,615 $9.86 Million

Q2 2024 Aug 14, 2024	BUY	$20.6 - $32.04 $8.38 Million - $13 Million	406,852 Added 145.4%	686,673 $15.8 Million
Q1 2024 May 15, 2024	BUY	$15.84 - $33.91 $2.88 Million - $6.17 Million	181,828 Added 185.55%	279,821 $8.15 Million
Q4 2023 Feb 14, 2024	SELL	$12.81 - $20.07 $673,780 - $1.06 Million	-52,598 Reduced 34.93%	97,993 $1.91 Million
Q3 2023 Nov 14, 2023	SELL	$11.97 - $19.63 $1.89 Million - $3.09 Million	-157,536 Reduced 51.13%	150,591 $2.73 Million
Q2 2023 Aug 14, 2023	SELL	$8.88 - $13.38 $4.91 Million - $7.4 Million	-552,802 Reduced 64.21%	308,127 $4.03 Million
Q1 2023 May 15, 2023	BUY	$9.48 - $14.18 $4.89 Million - $7.31 Million	515,526 Added 149.25%	860,929 $10.1 Million
Q4 2022 Feb 14, 2023	BUY	$5.96 - $13.4 $1.62 Million - $3.63 Million	271,166 Added 365.27%	345,403 $2.66 Million
Q3 2022 Nov 14, 2022	BUY	$11.74 - $19.62 $871,542 - $1.46 Million	74,237 New	74,237 $925,000
Q1 2022 May 16, 2022	BUY	$15.36 - $29.83 $2.2 Million - $4.26 Million	142,975 Added 142.98%	242,973 $5.03 Million
Q4 2021 Feb 14, 2022	BUY	$23.45 - $39.23 $1.86 Million - $3.11 Million	79,373 Added 384.84%	99,998 $2.84 Million
Q3 2021 Nov 15, 2021	SELL	$25.07 - $36.67 $1.09 Million - $1.59 Million	-43,452 Reduced 67.81%	20,625 $2.27 Million
Q2 2021 Aug 16, 2021	SELL	$21.41 - $35.58 $1.34 Million - $2.22 Million	-62,368 Reduced 49.32%	64,077 $2.18 Million
Q1 2021 May 17, 2021	BUY	$26.1 - $46.66 $2.85 Million - $5.09 Million	109,169 Added 631.91%	126,445 $10.2 Million
Q4 2020 Feb 16, 2021	SELL	$22.31 - $31.33 $150,614 - $211,508	-6,751 Reduced 28.1%	17,276 $1.4 Million
Q3 2020 Nov 16, 2020	BUY	$19.66 - $37.43 $58,173 - $110,755	2,959 Added 14.04%	24,027 $1.66 Million
Q2 2020 Aug 14, 2020	SELL	$9.07 - $21.9 $136,675 - $330,011	-15,069 Reduced 41.7%	21,068 $1.31 Million
Q1 2020 May 15, 2020	SELL	$5.75 - $16.18 $17,353 - $48,831	-3,018 Reduced 7.71%	36,137 $1.07 Million
Q4 2019 Feb 14, 2020	SELL	$4.2 - $6.54 $115,201 - $179,385	-27,429 Reduced 41.19%	39,155 $722,000
Q3 2019 Nov 14, 2019	BUY	$4.59 - $6.34 $121,511 - $167,838	26,473 Added 66.0%	66,584 $307,000
Q2 2019 Aug 14, 2019	BUY	$5.05 - $7.12 $202,560 - $285,590	40,111 New	40,111 $626,000

Others Institutions Holding ACMR

# of Institutions

296

Shares Held

39.3M

Call Options Held

3.32M

Put Options Held

2.29M

View Full List

About ACM Research, Inc.

Ticker ACMR
Exchange NASDAQ
Sector Technology
Industry Semiconductor Equipment & Materials
Shares Outstandng 54,181,200
Market Cap $1.72B
Description
ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells single-wafer wet cleaning equipment for enhancing the manufacturing process and yield for integrated chips worldwide. It offers space alternated phase shift technology for flat and patterned wafer surfaces, which employs alternating phases of megasonic waves to...

More about ACMR

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