Vanguard Group Inc Acm Research, Inc. Transaction History

Vanguard Group Inc

$6.44 Trillion
Q3 2025

A detailed history of Vanguard Group Inc transactions in Acm Research, Inc. stock. As of the latest transaction made, Vanguard Group Inc holds 4,846,413 shares of ACMR stock, worth $154 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

4,846,413

Previous 4,296,442 12.8%

Holding current value

$154 Million

Previous $111 Million 70.42%

% of portfolio

0.0%

Previous 0.0%

18 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 07, 2025	BUY	$23.92 - $39.13 $13.2 Million - $21.5 Million	549,971 Added 12.8%	4,846,413 $190 Million
Q2 2025 Aug 11, 2025	BUY	$18.33 - $26.51 $4.42 Million - $6.39 Million	241,096 Added 5.95%	4,296,442 $111 Million
Q1 2025 May 09, 2025	SELL	$15.41 - $29.98 $2.25 Million - $4.38 Million	-146,057 Reduced 3.48%	4,055,346 $94.7 Million
Q4 2024 Feb 11, 2025	BUY	$14.1 - $23.6 $948,295 - $1.59 Million	67,255 Added 1.63%	4,201,403 $63.4 Million
Q3 2024 Nov 13, 2024	BUY	$15.01 - $25.52 $3.45 Million - $5.86 Million	229,759 Added 5.88%	4,134,148 $83.9 Million

Q2 2024 Aug 13, 2024	SELL	$20.6 - $32.04 $1.63 Million - $2.54 Million	-79,277 Reduced 1.99%	3,904,389 $90 Million
Q1 2024 May 10, 2024	SELL	$15.84 - $33.91 $1.17 Million - $2.5 Million	-73,731 Reduced 1.82%	3,983,666 $116 Million
Q4 2023 Feb 14, 2024	SELL	$12.81 - $20.07 $325,860 - $510,540	-25,438 Reduced 0.62%	4,057,397 $79.3 Million
Q3 2023 Nov 14, 2023	BUY	$11.97 - $19.63 $4.79 Million - $7.85 Million	399,854 Added 10.86%	4,082,835 $73.9 Million
Q2 2023 Aug 14, 2023	BUY	$8.88 - $13.38 $8.05 Million - $12.1 Million	906,491 Added 32.65%	3,682,981 $48.2 Million
Q1 2023 May 15, 2023	SELL	$9.48 - $14.18 $1.17 Million - $1.74 Million	-122,930 Reduced 4.24%	2,776,490 $32.5 Million
Q4 2022 Feb 10, 2023	BUY	$5.96 - $13.4 $2.85 Million - $6.4 Million	477,655 Added 19.72%	2,899,420 $22.4 Million
Q3 2022 Nov 14, 2022	BUY	$11.74 - $19.62 $2.85 Million - $4.76 Million	242,699 Added 11.14%	2,421,765 $30.2 Million
Q2 2022 Aug 12, 2022	BUY	$11.63 - $22.07 $2.22 Million - $4.2 Million	190,522 Added 9.58%	2,179,066 $36.7 Million
Q1 2022 May 13, 2022	BUY	$15.36 - $29.83 $20.7 Million - $40.3 Million	1,350,632 Added 211.73%	1,988,544 $41.1 Million
Q4 2021 Feb 14, 2022	BUY	$23.45 - $39.23 $229,552 - $384,022	9,789 Added 1.56%	637,912 $54.4 Million
Q3 2021 Nov 12, 2021	BUY	$25.07 - $36.67 $1.22 Million - $1.79 Million	48,764 Added 8.42%	628,123 $69.1 Million
Q2 2021 Aug 13, 2021	BUY	$21.41 - $35.58 $12.4 Million - $20.6 Million	579,359 New	579,359 $59.2 Million

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...

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Vanguard Group Inc Acm Research, Inc. Transaction History