QUODD

Insider Transactions last 24 months for ACM Research, Inc. - NSDQ: ACMR

Transactions
All	Buy	Sell	Option Exercise

Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Wang Jian	See remarks	09/18/2025	DS	Direct	COM	30,000	$35.00	$1,050,000.00	253,158
Wang Jian	See remarks	09/18/2025	AM	Direct	COM	30,000	$5.60	$168,000.00	283,158
Cheav Sotheara	See remarks	09/18/2025	DS	Direct	COM	10,000	$35.00	$350,000.00	100,002
Cheav Sotheara	See remarks	09/18/2025	AM	Direct	COM	10,000	$13.89	$138,900.00	110,002
Liu Tracy	Director	09/17/2025	DS	Direct	COM	15,000	$33.00	$495,000.00	110,772
Liu Tracy	Director	09/17/2025	AM	Direct	COM	15,000	$1.00	$15,000.00	125,772
Wang David H	See Remarks	09/04/2025	DS	Direct	COM	60,000	$26.44	$1,586,400.00	672,708
Wang David H	See Remarks	09/04/2025	AM	Direct	COM	60,000	$1.00	$60,000.00	732,708
Wang David H	See Remarks	09/03/2025	DS	Direct	COM	3,943	$27.31	$107,683.33	672,708
Wang David H	See Remarks	09/03/2025	DS	Direct	COM	66,057	$26.73	$1,765,703.61	676,651
Wang David H	See Remarks	09/03/2025	AM	Direct	COM	70,000	$1.00	$70,000.00	742,708
Wang Jian	See remarks	08/25/2025	DS	Direct	COM	30,000	$32.00	$960,000.00	253,158
Wang Jian	See remarks	08/25/2025	AM	Direct	COM	30,000	$5.60	$168,000.00	283,158
Wang Jian	See remarks	08/22/2025	DS	Direct	COM	30,000	$30.00	$900,000.00	253,158
Wang Jian	See remarks	08/22/2025	AM	Direct	COM	30,000	$5.60	$168,000.00	283,158
Cheav Sotheara	See remarks	08/22/2025	DS	Direct	COM	11,152	$30.00	$334,560.00	100,002
Cheav Sotheara	See remarks	08/22/2025	AM	Direct	COM	11,152	$13.89	$154,901.28	111,154
Liu Tracy	Director	07/15/2025	DS	Direct	COM	15,000	$30.00	$450,000.00	110,772
Liu Tracy	Director	07/15/2025	AM	Direct	COM	15,000	$1.00	$15,000.00	125,772
Feng Lisa	See remarks	07/07/2025	DS	Direct	COM	15,000	$28.00	$420,000.00	50,001
Feng Lisa	See remarks	07/07/2025	AM	Direct	COM	15,000	$5.60	$84,000.00	65,001
Feng Lisa	See remarks	06/24/2025	DS	Direct	COM	15,000	$26.00	$390,000.00	50,001
Feng Lisa	See remarks	06/24/2025	AM	Direct	COM	15,000	$5.60	$84,000.00	65,001
Wang David H	See Remarks	05/22/2025	DS	Direct	COM	60,000	$22.63	$1,357,800.00	672,708
Wang David H	See Remarks	05/22/2025	AM	Direct	COM	60,000	$1.00	$60,000.00	732,708

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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		Send to Excel

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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