A detailed history of Portolan Capital Management, LLC transactions in Acm Research, Inc. stock. As of the latest transaction made, Portolan Capital Management, LLC holds 921,451 shares of ACMR stock, worth $13.7 Million. This represents 1.49% of its overall portfolio holdings.

Number of Shares
921,451
Previous 855,835 7.67%
Holding current value
$13.7 Million
Previous $19.7 Million 5.22%
% of portfolio
1.49%
Previous 1.75%

Shares

5 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 14, 2024

BUY
$15.01 - $25.52 $984,896 - $1.67 Million
65,616 Added 7.67%
921,451 $18.7 Million
Q2 2024

Aug 14, 2024

BUY
$20.6 - $32.04 $6.54 Million - $10.2 Million
317,402 Added 58.95%
855,835 $19.7 Million
Q1 2024

May 15, 2024

SELL
$15.84 - $33.91 $4.14 Million - $8.85 Million
-261,071 Reduced 32.65%
538,433 $15.7 Million
Q4 2023

Feb 14, 2024

BUY
$12.81 - $20.07 $10.2 Million - $16 Million
799,504 New
799,504 $15.6 Million
Q1 2023

May 15, 2023

BUY
$9.48 - $14.18 $5.33 Million - $7.97 Million
561,894 New
561,894 $6.57 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 $808M
  • 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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