Insider: Wang David H  See Remarks - ACM Research, Inc.

Company Holdings
  Direct Indirect Ownership Total
Shares 672,708 0 672,708
Value $25,535,995.68 $0.00 $25,535,995.68
Trans. Date
Trans. Type
Shares
Ownership Type
Issue Type
Price
Trans. Value
Total Shares Owned
09/04/2025DDS60,000DirectCOM$26.44$1,586,400.00672,708
09/03/2025DDS66,057DirectCOM$26.73$1,765,703.61676,651
09/03/2025DDS3,943DirectCOM$27.31$107,683.33672,708
05/22/2025DDS60,000DirectCOM$22.63$1,357,800.00672,708
05/21/2025DDS8DirectCOM$24.04$192.32672,708
05/21/2025DDS69,992DirectCOM$23.60$1,651,811.20672,716
03/13/2025DDS36,481DirectCOM$27.29$995,566.49673,727
03/13/2025DDS1,019DirectCOM$27.65$28,175.35672,708
03/12/2025DDS37,500DirectCOM$27.42$1,028,250.00710,208
03/11/2025DDS56,250DirectCOM$26.57$1,494,562.50747,708
11/29/2024DDS56,250DirectCOM$17.44$981,000.00598,006
11/26/2024DDS46,766DirectCOM$17.80$832,434.80663,740
11/26/2024DDS9,484DirectCOM$18.31$173,652.04654,256
11/22/2024DDS56,250DirectCOM$19.08$1,073,250.00710,506
05/29/2024DDS45,000DirectCOM$22.62$1,017,900.00545,108
05/29/2024DDS41,090DirectCOM$22.62$929,455.80504,018
05/22/2024DDS45,000DirectCOM$22.81$1,026,450.00635,108
05/22/2024DDS45,000DirectCOM$22.81$1,026,450.00590,108
03/14/2024DDS10,611DirectCOM$28.38$301,140.18504,018
03/14/2024DDS76,478DirectCOM$27.51$2,103,909.78514,629
03/08/2024DDS45,000DirectCOM$30.36$1,366,200.00636,107
03/08/2024DDS45,000DirectCOM$30.35$1,365,750.00591,107
11/29/2023DDS45,000DirectCOM$17.14$771,300.00543,794
11/29/2023DDS39,776DirectCOM$17.13$681,362.88504,018
11/22/2023DDS45,000DirectCOM$17.67$795,150.00633,794
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Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust
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