A detailed history of Congress Asset Management CO transactions in Acm Research, Inc. stock. As of the latest transaction made, Congress Asset Management CO holds 289,449 shares of ACMR stock, worth $9.18 Million. This represents 0.07% of its overall portfolio holdings.

Number of Shares
289,449
Previous 281,923 2.67%
Holding current value
$9.18 Million
Previous $11 Million 16.74%
% of portfolio
0.07%
Previous 0.08%

Shares

3 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q4 2025

Jan 09, 2026

BUY
$30.43 - $43.78 $229,016 - $329,488
7,526 Added 2.67%
289,449 $9.18 Million
Q3 2025

Oct 10, 2025

BUY
$23.92 - $39.13 $2.03 Million - $3.32 Million
84,747 Added 42.98%
281,923 $11 Million
Q2 2025

Jul 16, 2025

BUY
$18.33 - $26.51 $3.61 Million - $5.23 Million
197,176 New
197,176 $5.11 Million

Others Institutions Holding ACMR

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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