Insider Transactions Reported by 13 Insiders of ACM Research, Inc.

Symbol
ACMR on Nasdaq
Location
Fremont, CA

Insiders trading volume in the past year

ACM Research, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Shanghai Science & Technology Venture Capital (Group) Co., Ltd. Possible member of 10% group, 10%+ Owner $120,382,639 04 Oct 2024
David H. Wang Chief Executive Officer, President and Director, Director, 10%+ Owner $88,826,347 -$15,985,472 -15% 11 Mar 2026
Xiao Xing Director $49,412,716 04 Oct 2024
Haiping Dun Director $46,508,345 -$217,363 -0.47% 09 Mar 2026
Yinan Xiang Director $25,215,740 23 Aug 2021
Jian Wang Chief Executive Officer and President of ACM Research (Shanghai), Inc., a subsidiary of the Issuer $8,860,530 -$2,910,000 -25% 18 Sep 2025
Tracy Liu Director $5,344,749 -$3,795,782 -42% 10 Mar 2026
Sotheara Cheav Senior Vice President, Manufacturing of ACM Research (Shanghai), Inc., a subsidiary of the Issuer. $3,500,070 -$684,560 -16% 18 Sep 2025
Chenming Hu Director $3,000,060 -$4,899,240 -62% 17 Mar 2025
Lisa Feng Chief Financial Officer of ACM Research (Shanghai), Inc., a subsidiary of the Issuer $2,329,046 -$3,249,241 -58% 05 Mar 2026
Mark McKechnie Chief Financial Officer and Treasurer $41,913 -$5,961,759 -99% 12 Mar 2026
Fuping Chen Vice President, Sales-China of ACM Research (Shanghai), Inc., a subsidiary of the Issuer $0 -$3,981,156 -100% 02 Dec 2025
Charles C. Pappis Director $0 -$250,450 -100% 05 Mar 2026

Recent Insider Transactions by Companies or Individuals for ACM Research, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Mark McKechnie ACMR Class A Common Stock Sale -99.1% $4,491,952 $45.58 -98,551 900 12 Mar 2026 Direct
Mark McKechnie ACMR Class A Common Stock Options Exercise 98,551 60,900 12 Mar 2026 Direct
Mark McKechnie ACMR Stock Option Options Exercise -61.6% -98,551 61,449 12 Mar 2026 Direct
David H. Wang ACMR Class A Common Stock Sale -5.86% $2,278,923 $45.58 -50,000 802,708 12 Mar 2026 Direct
David H. Wang ACMR Class A Common Stock Options Exercise 6.23% 50,000 852,708 12 Mar 2026 Direct
David H. Wang ACMR Stock Option Options Exercise -11.9% -50,000 370,002 12 Mar 2026 Direct
David H. Wang ACMR Class A Common Stock Sale -6.95% $2,875,482 $47.92 -60,000 802,708 11 Mar 2026 Direct
David H. Wang ACMR Class A Common Stock Options Exercise 7.47% 60,000 862,708 11 Mar 2026 Direct
David H. Wang ACMR Stock Option Options Exercise -12.5% -60,000 420,002 11 Mar 2026 Direct
Tracy Liu ACMR Class A Common Stock Sale -11.9% $718,636 $47.91 -15,000 110,772 11 Mar 2026 Direct
Tracy Liu ACMR Class A Common Stock Options Exercise 13.5% 15,000 125,772 11 Mar 2026 Direct
Tracy Liu ACMR Stock Option Options Exercise -100% -15,000 0 11 Mar 2026 Direct
Tracy Liu ACMR Class A Common Stock Sale -28.9% $2,132,146 $47.38 -45,000 110,772 10 Mar 2026 Direct
Tracy Liu ACMR Class A Common Stock Options Exercise 40.6% 45,000 155,772 10 Mar 2026 Direct
Tracy Liu ACMR Stock Option Options Exercise -75% -45,000 15,000 10 Mar 2026 Direct
Haiping Dun ACMR Class A Common Stock Sale -100% $217,363 $43.47 -5,000 0 09 Mar 2026 Direct
Haiping Dun ACMR Class A Common Stock Options Exercise 5,000 5,000 09 Mar 2026 Direct
Haiping Dun ACMR Stock Option Options Exercise -8.33% -5,000 55,000 09 Mar 2026 Direct
Lisa Feng ACMR Class A Common Stock Sale -23.1% $691,152 $46.08 -15,000 50,001 06 Mar 2026 Direct
Lisa Feng ACMR Class A Common Stock Options Exercise 30% 15,000 65,001 06 Mar 2026 Direct
Lisa Feng ACMR Stock Option Options Exercise -100% -15,000 0 06 Mar 2026 Direct
Charles C. Pappis ACMR Class A Common Stock Sale -100% $250,450 $50.09 -5,000 0 05 Mar 2026 Direct
Charles C. Pappis ACMR Class A Common Stock Options Exercise 5,000 5,000 05 Mar 2026 Direct
Charles C. Pappis ACMR Stock Option Options Exercise -50% -5,000 5,000 05 Mar 2026 Direct
Lisa Feng ACMR Class A Common Stock Sale -23.1% $750,138 $50.01 -15,000 50,001 05 Mar 2026 Direct
Lisa Feng ACMR Class A Common Stock Options Exercise 30% 15,000 65,001 05 Mar 2026 Direct
Lisa Feng ACMR Stock Option Options Exercise -100% -15,000 0 05 Mar 2026 Direct
David H. Wang ACMR Stock Option Award 50% 545,400 1,636,197 04 Feb 2026 Direct
Mark McKechnie ACMR Class A Common Stock Sale -96.2% $797,625 $35.45 -22,500 900 08 Dec 2025 Direct
Mark McKechnie ACMR Class A Common Stock Options Exercise 2500% 22,500 23,400 08 Dec 2025 Direct
Mark McKechnie ACMR Stock Option Options Exercise -100% -22,500 0 08 Dec 2025 Direct
Mark McKechnie ACMR Class A Common Stock Sale -90.7% $293,882 $33.59 -8,750 900 04 Dec 2025 Direct
Mark McKechnie ACMR Class A Common Stock Options Exercise 972.2% 8,750 9,650 04 Dec 2025 Direct
Mark McKechnie ACMR Stock Option Options Exercise -100% -8,750 0 04 Dec 2025 Direct
David H. Wang ACMR Class A Common Stock Sale -6.95% $2,047,365 $34.12 -60,000 802,708 04 Dec 2025 Direct
David H. Wang ACMR Class A Common Stock Options Exercise 7.47% 60,000 862,708 04 Dec 2025 Direct
David H. Wang ACMR Stock Option Options Exercise -11.1% -60,000 480,002 04 Dec 2025 Direct
David H. Wang ACMR Class A Common Stock Sale -8.02% $2,314,112 $33.06 -70,000 802,708 03 Dec 2025 Direct
David H. Wang ACMR Class A Common Stock Options Exercise 8.72% 70,000 872,708 03 Dec 2025 Direct
David H. Wang ACMR Stock Option Options Exercise -11.5% -70,000 540,002 03 Dec 2025 Direct
Fuping Chen ACMR Class A Common Stock Sale -100% $661,156 $33.06 -20,000 0 03 Dec 2025 Direct
Fuping Chen ACMR Class A Common Stock Options Exercise 20,000 20,000 03 Dec 2025 Direct
Fuping Chen ACMR Stock Option Options Exercise -48.6% -20,000 21,165 03 Dec 2025 Direct
Fuping Chen ACMR Class A Common Stock Sale -100% $3,320,000 $33.20 -100,000 0 02 Dec 2025 Direct
Fuping Chen ACMR Class A Common Stock Options Exercise 100,000 100,000 02 Dec 2025 Direct
Fuping Chen ACMR Stock Option Options Exercise -70.8% -100,000 41,165 02 Dec 2025 Direct
Lisa Feng ACMR Class A Common Stock Sale -23.1% $506,550 $33.77 -15,000 50,001 13 Nov 2025 Direct
Lisa Feng ACMR Class A Common Stock Options Exercise 30% 15,000 65,001 13 Nov 2025 Direct
Lisa Feng ACMR Stock Option Options Exercise -100% -15,000 0 13 Nov 2025 Direct
Haiping Dun ACMR Class A Common Stock Gift -100% -755,090 0 12 Nov 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.