ACM Research, Inc.

By person

12 insiders · 75 transactions

493×

David H. Wang holds 493 times base salary in stock. $132.11M of shares against $267.80K in salary for 2025.

Salary from the company's own proxy. The shares are what David H. Wang last reported holding, valued at $77.59, the price Class A Common Stock was last bought or sold at on the open market here, on 9 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Wang David H

See Remarks

—

$28.98M (29) scheduled

−$28.98M

1,702,711

2.5%

$132.11M

+21.3%

McKechnie Mark

See Remarks

—

$9.85M (12) scheduled

−$9.85M

900

0.001%

$69.83K

0.0%

Chen Fuping

See remarks

—

$3.98M (3) scheduled

−$3.98M

0.000%

$0.00

—

Liu Tracy

Director

—

$3.35M (5) scheduled

−$3.35M

110,772

0.163%

$8.59M

0.0%

Feng Lisa

See remarks

—

$2.44M (6) scheduled

−$2.44M

50,001

0.074%

$3.88M

0.0%

Cheav Sotheara

See remarks

—

$1.94M (8) scheduled

−$1.94M

100,002

0.147%

$7.76M

0.0%

Wang Jian

See remarks

—

$1.05M (1) scheduled

−$1.05M

253,158

0.373%

$19.64M

0.0%

Dun Haiping

Director

—

$954.14K (9) scheduled

−$954.14K

0.000%

$0.00

−100.0%

Pappis Charles C

Director

—

$510.45K (2) scheduled

−$510.45K

0.000%

$0.00

—

Shanghai Science & Technology Venture Capital (Group) Co., Ltd. entity

10% owner

—

2,338,510

3.4%

$181.44M

−32.0%

Xing Xiao

Director

—

2,338,510

3.4%

$181.44M

−32.0%

Hu Chenming

Director

—

100,002

0.147%

$7.76M

−62.0%

Individual transactions

Insider

Date

Role

Action

Price

Amount

Wang David H

9 Sep 2026

See Remarks

Sold after exercise

1,100

$77.59

$85.35K

Wang David H

9 Sep 2026

See Remarks

Sold after exercise

4,807

$76.73

$368.84K

Wang David H

9 Sep 2026

See Remarks

Sold after exercise

11,666

$75.58

$881.72K

Wang David H

9 Sep 2026

See Remarks

Sold after exercise

18,934

$74.67

$1.41M

Wang David H

9 Sep 2026

See Remarks

Sold after exercise

33,493

$73.80

$2.47M

Wang David H

8 Sep 2026

See Remarks

Sold after exercise

1,500

$78.57

$117.86K

Wang David H

8 Sep 2026

See Remarks

Sold after exercise

12,323

$78.08

$962.18K

Wang David H

8 Sep 2026

See Remarks

Sold after exercise

51,374

$77.15

$3.96M

Wang David H

8 Sep 2026

See Remarks

Sold after exercise

4,803

$75.99

$364.98K

McKechnie Mark

20 Aug 2026

See Remarks

Sold after exercise

11,209

$77.89

$873.07K

McKechnie Mark

20 Aug 2026

See Remarks

Sold after exercise

30,365

$77.45

$2.35M

McKechnie Mark

20 Aug 2026

See Remarks

Sold after exercise

13,625

$76.34

$1.04M

Dun Haiping

18 Aug 2026

Director

Sold after exercise

400

$82.17

$32.87K

Dun Haiping

18 Aug 2026

Director

Sold after exercise

3,400

$81.31

$276.45K

Dun Haiping

18 Aug 2026

Director

Sold after exercise

1,200

$80.29

$96.35K

Cheav Sotheara

5 Jun 2026

See remarks

Sold after exercise

1,647

$85.41

$140.67K

Cheav Sotheara

5 Jun 2026

See remarks

Sold after exercise

400

$84.01

$33.60K

Cheav Sotheara

5 Jun 2026

See remarks

Sold after exercise

968

$82.61

$79.97K

Cheav Sotheara

5 Jun 2026

See remarks

Sold after exercise

2,384

$81.73

$194.84K

Wang David H

4 Jun 2026

See Remarks

Sold after exercise

826

$87.91

$72.61K

Wang David H

4 Jun 2026

See Remarks

Sold after exercise

8,581

$87.13

$747.66K

Wang David H

4 Jun 2026

See Remarks

Sold after exercise

10,992

$86.07

$946.08K

Wang David H

4 Jun 2026

See Remarks

Sold after exercise

17,543

$85.11

$1.49M

Wang David H

4 Jun 2026

See Remarks

Sold after exercise

2,060

$83.86

$172.75K

Cheav Sotheara

4 Jun 2026

See remarks

Sold after exercise

2,839

$85.77

$243.50K

Cheav Sotheara

4 Jun 2026

See remarks

Sold after exercise

9,212

$85.11

$784.03K

Cheav Sotheara

4 Jun 2026

See remarks

Sold after exercise

1,300

$84.08

$109.30K

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

1,187

$93.04

$110.44K

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

5,843

$92.38

$539.78K

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

9,925

$90.78

$900.99K

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

32,450

$89.84

$2.92M

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

6,295

$88.98

$560.13K

Wang David H

3 Jun 2026

See Remarks

Sold after exercise

4,300

$87.57

$376.55K

Dun Haiping

19 May 2026

Director

Sold after exercise

1,858

$67.54

$125.49K

Dun Haiping

19 May 2026

Director

Sold after exercise

1,309

$67.21

$87.98K

Dun Haiping

19 May 2026

Director

Sold after exercise

500

$65.09

$32.55K

Dun Haiping

19 May 2026

Director

Sold after exercise

1,333

$63.84

$85.10K

Pappis Charles C

17 Apr 2026

Director

Sold after exercise

5,000

$52.00

$260.00K

Wang David H

12 Mar 2026

See Remarks

Sold after exercise

702

$46.57

$32.69K

Wang David H

12 Mar 2026

See Remarks

Sold after exercise

38,737

$45.74

$1.77M

Wang David H

12 Mar 2026

See Remarks

Sold after exercise

10,561

$44.92

$474.40K

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

564

$46.57

$26.27K

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

29,348

$45.74

$1.34M

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

8,639

$44.94

$388.24K

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

982

$46.55

$45.71K

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

47,108

$45.74

$2.15M

McKechnie Mark

12 Mar 2026

See Remarks

Sold after exercise

11,910

$44.89

$534.64K

Liu Tracy

11 Mar 2026

Director

Sold after exercise

3,377

$48.25

$162.94K

Liu Tracy

11 Mar 2026

Director

Sold after exercise

11,623

$47.81

$555.70K

Wang David H

11 Mar 2026

See Remarks

Sold after exercise

4,627

$48.34

$223.67K

Wang David H

11 Mar 2026

See Remarks

Sold after exercise

55,373

$47.89

$2.65M

Liu Tracy

10 Mar 2026

Director

Sold after exercise

12,784

$48.19

$616.06K

Liu Tracy

10 Mar 2026

Director

Sold after exercise

32,216

$47.06

$1.52M

Dun Haiping

9 Mar 2026

Director

Sold after exercise

900

$43.94

$39.55K

Dun Haiping

9 Mar 2026

Director

Sold after exercise

4,100

$43.37

$177.82K

Feng Lisa

6 Mar 2026

See remarks

Sold after exercise

200

$46.58

$9.32K

Feng Lisa

6 Mar 2026

See remarks

Sold after exercise

14,800

$46.07

$681.84K

Feng Lisa

5 Mar 2026

See remarks

Sold after exercise

6,950

$50.24

$349.17K

Feng Lisa

5 Mar 2026

See remarks

Sold after exercise

8,050

$49.81

$400.97K

Pappis Charles C

5 Mar 2026

Director

Sold after exercise

5,000

$50.09

$250.45K

McKechnie Mark

8 Dec 2025

See Remarks

Sold after exercise

22,500

$35.45

$797.63K

Wang David H

4 Dec 2025

See Remarks

Sold after exercise

40,183

$34.42

$1.38M

Wang David H

4 Dec 2025

See Remarks

Sold after exercise

19,817

$33.52

$664.27K

McKechnie Mark

4 Dec 2025

See Remarks

Sold after exercise

996

$34.26

$34.12K

McKechnie Mark

4 Dec 2025

See Remarks

Sold after exercise

7,754

$33.50

$259.76K

Chen Fuping

3 Dec 2025

See remarks

Sold after exercise

300

$33.57

$10.07K

Chen Fuping

3 Dec 2025

See remarks

Sold after exercise

19,700

$33.05

$651.09K

Wang David H

3 Dec 2025

See Remarks

Sold after exercise

1,200

$33.56

$40.27K

Wang David H

3 Dec 2025

See Remarks

Sold after exercise

68,800

$33.05

$2.27M

Chen Fuping

2 Dec 2025

See remarks

Sold after exercise

100,000

$33.20

$3.32M

Feng Lisa

13 Nov 2025

See remarks

Sold after exercise

15,000

$33.77

$506.55K

Feng Lisa

12 Nov 2025

See remarks

Sold after exercise

15,000

$32.76

$491.40K

Cheav Sotheara

18 Sep 2025

See remarks

Sold after exercise

10,000

$35.00

$350.00K

Wang Jian

18 Sep 2025

See remarks

Sold after exercise

30,000

$35.00

$1.05M

Liu Tracy

17 Sep 2025

Director

Sold after exercise

15,000

$33.00

$495.00K

By person

Individual transactions

What was left out