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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
2025-08-25 Wang Jian See remarks Option exercise 10b5-1 +30,000 $5.60 $168K 283,158
2025-08-25 Wang Jian See remarks Sale 10b5-1 −30,000 $32.00 $960K 253,158
2025-08-25 Wang Jian See remarks Option exercise · Stock Option 10b5-1 −30,000 30,000
2025-08-22 Cheav Sotheara See remarks Option exercise 10b5-1 +11,152 $13.89 $155K 111,154
2025-08-22 Cheav Sotheara See remarks Sale 10b5-1 −11,152 $30.00 $335K 100,002
2025-08-22 Cheav Sotheara See remarks Option exercise · Stock Option 10b5-1 −11,152 66,250
2025-08-22 Wang Jian See remarks Option exercise 10b5-1 +30,000 $5.60 $168K 283,158
2025-08-22 Wang Jian See remarks Sale 10b5-1 −30,000 $30.00 $900K 253,158
2025-08-22 Wang Jian See remarks Option exercise · Stock Option 10b5-1 −30,000 60,000
2025-08-12 Pappis Charles C Director Grant or award · Stock Option +20,000 20,000
2025-08-12 Dun Haiping Director Grant or award · Stock Option +20,000 20,000
2025-08-12 Liu Tracy Director Grant or award · Stock Option +20,000 20,000
2025-07-15 Liu Tracy Director Option exercise 10b5-1 +15,000 $1.00 $15K 125,772
2025-07-15 Liu Tracy Director Sale 10b5-1 −15,000 $30.00 $450K 110,772
2025-07-15 Liu Tracy Director Option exercise · Stock Option 10b5-1 −15,000 75,000
2025-07-07 Feng Lisa See remarks Option exercise 10b5-1 +15,000 $5.60 $84K 65,001
2025-07-07 Feng Lisa See remarks Sale 10b5-1 −15,000 $28.00 $420K 50,001
2025-07-07 Feng Lisa See remarks Option exercise · Stock Option 10b5-1 −15,000 30,000
2025-06-24 Feng Lisa See remarks Option exercise 10b5-1 +15,000 $5.60 $84K 65,001
2025-06-24 Feng Lisa See remarks Sale 10b5-1 −15,000 $26.00 $390K 50,001

Page 9 of 32 · 639 trades