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 David H	See Remarks	03/12/2026	DS	Direct	COM	702	$46.57	$32,692.14	802,708
Wang David H	See Remarks	03/12/2026	DS	Direct	COM	38,737	$45.74	$1,771,830.38	803,410
Wang David H	See Remarks	03/12/2026	DS	Direct	COM	10,561	$44.92	$474,400.12	842,147
Wang David H	See Remarks	03/12/2026	AM	Direct	COM	50,000	$1.00	$50,000.00	852,708
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	564	$46.57	$26,265.48	900
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	29,348	$45.74	$1,342,377.52	1,464
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	8,639	$44.94	$388,236.66	30,812
Mckechnie Mark	See Remarks	03/12/2026	AM	Direct	COM	38,551	$19.49	$751,358.99	39,451
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	982	$46.55	$45,712.10	900
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	47,108	$45.74	$2,154,719.92	1,882
Mckechnie Mark	See Remarks	03/12/2026	DS	Direct	COM	11,910	$44.89	$534,639.90	48,990
Mckechnie Mark	See Remarks	03/12/2026	AM	Direct	COM	60,000	$13.89	$833,400.00	60,900
Liu Tracy	Director	03/11/2026	DS	Direct	COM	3,377	$48.25	$162,940.25	110,772
Liu Tracy	Director	03/11/2026	DS	Direct	COM	11,623	$47.81	$555,695.63	114,149
Liu Tracy	Director	03/11/2026	AM	Direct	COM	15,000	$1.00	$15,000.00	125,772
Wang David H	See Remarks	03/11/2026	DS	Direct	COM	4,627	$48.34	$223,669.18	802,708
Wang David H	See Remarks	03/11/2026	DS	Direct	COM	55,373	$47.89	$2,651,812.97	807,335
Wang David H	See Remarks	03/11/2026	AM	Direct	COM	60,000	$1.00	$60,000.00	862,708
Liu Tracy	Director	03/10/2026	DS	Direct	COM	12,784	$48.19	$616,060.96	110,772
Liu Tracy	Director	03/10/2026	DS	Direct	COM	32,216	$47.06	$1,516,084.96	123,556
Liu Tracy	Director	03/10/2026	AM	Direct	COM	45,000	$1.00	$45,000.00	155,772
Dun Haiping	Director	03/09/2026	DS	Direct	COM	900	$43.94	$39,546.00	0
Dun Haiping	Director	03/09/2026	DS	Direct	COM	4,100	$43.37	$177,817.00	900
Dun Haiping	Director	03/09/2026	AM	Direct	COM	5,000	$5.60	$28,000.00	5,000
Feng Lisa	See remarks	03/06/2026	DS	Direct	COM	200	$46.58	$9,316.00	50,001

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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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