ACM Research, Inc.
    Insider Ownership

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    Current Insider Ownership

    Hu ChenmingDirector
    Class A Common StockStock Option
    Mar 17, 2025Aug 12, 2024
    100,00268,000
    0.150.10
    4,806,0963,268,080
    Pappis Charles CDirector
    Stock Option
    Mar 5, 2026
    25,000
    0.04
    1,201,500
    Cheav SothearaSee remarks
    Class A Common StockStock Option
    Sep 18, 2025Sep 18, 2025
    100,002156,250
    0.150.24
    4,806,0967,509,375
    Liu TracyDirector
    Class A Common StockStock Option
    Sep 17, 2025Sep 17, 2025
    110,772167,500
    0.170.25
    5,323,7028,050,050
    Wang David HSee Remarks
    Class A Common StockStock Option
    Dec 4, 2025Feb 4, 2026
    802,7084,276,199
    1.226.51
    38,578,146205,514,124
    Dun HaipingDirector
    Stock Option
    Aug 12, 2025
    88,000
    0.13
    4,229,280
    Wang JianSee remarks
    Class A Common StockStock Option
    Sep 18, 2025Sep 18, 2025
    253,15815,000
    0.390.02
    12,166,773720,900
    Chen FupingSee remarks
    Stock Option
    Dec 3, 2025
    54,165
    0.08
    2,603,170
    Mckechnie MarkSee Remarks
    Class A Common StockStock Option
    Dec 8, 2025Dec 8, 2025
    900600,000
    0.000.91
    43,25428,836,000
    Feng LisaSee remarks
    Class A Common StockStock Option
    Mar 6, 2026Mar 6, 2026
    50,001222,500
    0.080.34
    2,403,04810,693,350
    Xing XiaoDirector
    Class A Common StockStock Option
    Oct 8, 2024Aug 10, 2023
    2,338,51048,000
    3.560.07
    112,388,7912,306,880
    Shanghai Pudong Science & Technology Investment Group Co., Ltd.10% Owner
    Class A Common Stock, $0.0001 par value
    Oct 8, 2024
    2,338,510
    3.56
    112,388,791
    Shanghai Science & Technology Venture Capital (Group) Co., Ltd.10% Owner
    Class A Common Stock, $0.0001 par value
    Oct 8, 2024
    2,338,510
    3.56
    112,388,791

    Insider Trading Trends

    Insider Transactions

    Voluntary Buys vs Sells

    Historical Insider Trading (3-Years)

    10b5-1

    Feng LisaClass A Common StockNoYesSell
    DISPOSE
    S
    		46.58-2009,31650,001Mar 6, 2026
    Feng LisaClass A Common StockNoNoExercise/Conversion
    DISPOSE
    M
    		4.55-15,00068,2500Mar 6, 2026
    Feng LisaClass A Common StockNoNoExercise/Conversion
    ACQUIRE
    M
    		4.55+15,00068,25065,001Mar 6, 2026
    Feng LisaClass A Common StockNoYesSell
    DISPOSE
    S
    		46.07-14,800681,83650,201Mar 6, 2026
    Pappis Charles CClass A Common StockNoNoExercise/Conversion
    ACQUIRE
    M
    		29.18+5,000145,9005,000Mar 5, 2026
    Feng LisaClass A Common StockNoNoExercise/Conversion
    ACQUIRE
    M
    		4.55+15,00068,25065,001Mar 5, 2026
    Feng LisaClass A Common StockNoYesSell
    DISPOSE
    S
    		49.81-8,050400,97156,951Mar 5, 2026
    Pappis Charles CClass A Common StockNoYesSell
    DISPOSE
    S
    		50.09-5,000250,4500Mar 5, 2026
    Feng LisaClass A Common StockNoYesSell
    DISPOSE
    S
    		50.24-6,950349,16850,001Mar 5, 2026
    Pappis Charles CClass A Common StockNoNoExercise/Conversion
    DISPOSE
    M
    		29.18-5,000145,9005,000Mar 5, 2026
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