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CIK 0001680062 · Large accelerated filer

ACM Research, Inc.

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Ticker
ACMR
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
FY end
Dec 31
Incorporated
CA
Entity type
operating
Phone
510-445-3700
Business address
42307 OSGOOD ROAD, SUITE I, FREMONT, CA, 94539
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$15,300,651
in 3 filings, $15.3M under 10b5-1 plans

Net −$15,300,651. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-11-12 Feng Lisa See remarks Option exercise · Stock Option 10b5-1 −15,000 15,000
2025-10-27 Wang David H See Remarks Grant or award · Stock Option +545,400 545,400
2025-09-18 Cheav Sotheara See remarks Option exercise 10b5-1 +10,000 $13.89 $139K 110,002
2025-09-18 Cheav Sotheara See remarks Sale 10b5-1 −10,000 $35.00 $350K 100,002
2025-09-18 Cheav Sotheara See remarks Option exercise · Stock Option 10b5-1 −10,000 56,250
2025-09-18 Wang Jian See remarks Option exercise 10b5-1 +30,000 $5.60 $168K 283,158
2025-09-18 Wang Jian See remarks Sale 10b5-1 −30,000 $35.00 $1.1M 253,158
2025-09-18 Wang Jian See remarks Option exercise · Stock Option 10b5-1 −30,000 0
2025-09-17 Liu Tracy Director Option exercise 10b5-1 +15,000 $1.00 $15K 125,772
2025-09-17 Liu Tracy Director Sale 10b5-1 −15,000 $33.00 $495K 110,772
2025-09-17 Liu Tracy Director Option exercise · Stock Option 10b5-1 −15,000 60,000
2025-09-08 Wang David H See Remarks Option exercise +130,000 $1.00 $130K 802,708
2025-09-08 Wang David H See Remarks Option exercise · Stock Option −130,000 610,002
2025-09-04 Wang David H See Remarks Option exercise 10b5-1 +60,000 $1.00 $60K 732,708
2025-09-04 Wang David H See Remarks Sale 10b5-1 −60,000 $26.44 $1.6M 672,708
2025-09-04 Wang David H See Remarks Option exercise · Stock Option 10b5-1 −60,000 740,002
2025-09-03 Wang David H See Remarks Option exercise 10b5-1 +70,000 $1.00 $70K 742,708
2025-09-03 Wang David H See Remarks Sale 10b5-1 −66,057 $26.73 $1.8M 676,651
2025-09-03 Wang David H See Remarks Sale 10b5-1 −3,943 $27.31 $108K 672,708
2025-09-03 Wang David H See Remarks Option exercise · Stock Option 10b5-1 −70,000 800,002

Page 8 of 32 · 639 trades