Insider Trading & Ownership - Wang David H

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Wang David H
Common stock purchase or sale:
Transaction
Date		 Reported
DateTime		 Company Symbol Insider
Relationship		 Shares
Traded		 Average
Price		 Total
Amount		 Shares
Owned		 Filing
2025-03-11
Sale		 2025-03-13
9:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 131,250 $27.02 $3,546,554 1,618,548
(Indirect
Direct)		 View
2024-11-29
Sale		 2024-12-03
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 56,250 $17.44 $981,000 1,543,846
(Indirect
Direct)		 View
2024-11-26
Sale		 2024-11-29
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 56,250 $17.89 $1,006,087 1,600,096
(Indirect
Direct)		 View
2024-11-22
Sale		 2024-11-26
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 56,250 $19.08 $1,073,250 1,656,346
(Indirect
Direct)		 View
2024-05-29
Sale		 2024-05-31
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 86,090 $22.62 $1,947,356 1,449,858
(Indirect
Direct)		 View
2024-05-22
Sale		 2024-05-24
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 90,000 $22.81 $2,052,900 1,535,948
(Indirect
Direct)		 View
2024-03-14
Sale		 2024-03-15
9:32 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 87,089 $27.62 $2,405,050 1,449,858
(Indirect
Direct)		 View
2024-03-08
Sale		 2024-03-12
9:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 90,000 $30.36 $2,731,950 1,536,947
(Indirect
Direct)		 View
2023-11-29
Sale		 2023-12-01
4:15 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 84,776 $17.14 $1,452,663 1,449,858
(Indirect
Direct)		 View
2023-11-22
Sale		 2023-11-27
4:30 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 90,000 $17.68 $1,590,750 1,534,634
(Indirect
Direct)		 View
2023-09-12
Sale		 2023-09-14
5:00 pm		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 175,116 $17.87 $3,130,016 1,449,858
(Indirect
Direct)		 View
2021-03-18
Sale		 2021-03-22
5:30 pm		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 99,228 $91.24 $9,053,595 483,286
(Indirect
Direct)		 View
2020-12-03
Sale		 2020-12-07
5:30 pm		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 98,983 $79.83 $7,901,732 483,286
(Indirect
Direct)		 View
2020-09-03
Sale		 2020-09-04
6:35 pm		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 69,453 $81.36 $5,650,796 483,286
(Indirect
Direct)		 View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date		 Reported
DateTime		 Exercisable
Expiration		 Company Symnbol Insider
Relationship		 Shares
Traded		 Conversion
Price		 Shares
Owned		 Filing
2025-03-03
Tax Withholding		 2025-03-05
4:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 4,048 $25.94 1,749,798
(Direct)		 View
2025-03-03
Exercise		 2025-03-05
4:30 pm		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 210,000 $0 1,749,798
(Direct)		 View
2025-03-03
Exercise		 2025-03-05
4:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 210,000 $0.5 1,749,798
(Direct)		 View
2024-11-14
Tax Withholding		 2024-11-18
4:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 7,262 $18.59 1,922,596
(Direct)		 View
2024-11-14
Exercise		 2024-11-18
4:30 pm		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 270,000 $0 1,922,596
(Direct)		 View
2024-11-14
Exercise		 2024-11-18
4:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 270,000 $0.5 1,922,596
(Direct)		 View
2024-05-14
Exercise		 2024-05-16
09:00 am		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0 2,105,948
(Direct)		 View
2024-05-14
Tax Withholding		 2024-05-16
09:00 am		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 3,910 $23.02 2,105,948
(Direct)		 View
2024-05-14
Exercise		 2024-05-16
09:00 am		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0.5 2,105,948
(Direct)		 View
2024-03-01
Tax Withholding		 2024-03-05
9:33 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 2,911 $30.92 2,286,947
(Direct)		 View
2024-03-01
Exercise		 2024-03-05
9:33 pm		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0 2,286,947
(Direct)		 View
2024-03-01
Exercise		 2024-03-05
9:33 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0.5 2,286,947
(Direct)		 View
2023-11-14
Tax Withholding		 2023-11-16
4:15 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 5,224 $17.23 2,464,634
(Direct)		 View
2023-11-14
Exercise		 2023-11-16
4:15 pm		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0 2,464,634
(Direct)		 View
2023-11-14
Exercise		 2023-11-16
4:15 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0.5 2,464,634
(Direct)		 View
2023-09-04
Exercise		 2023-09-06
9:40 pm		 N/A
2025-04-30		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0 2,644,974
(Direct)		 View
2023-09-04
Exercise		 2023-09-06
9:40 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 180,000 $0.5 2,644,974
(Direct)		 View
2023-09-04
Tax Withholding		 2023-09-06
9:40 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See Remarks
10% Owner		 4,884 $18.43 2,644,974
(Direct)		 View
2023-08-10
Option Award(A)		 2023-08-21
9:19 pm		 N/A
2033-08-09		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 1,080,000 $0 1,080,000
(Direct)		 View
2023-08-10
Option Award		 2023-08-14
5:30 pm		 N/A
2033-08-09		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 1,080,000 $0 1,080,000
(Direct)		 View
2021-03-12
Exercise		 2021-03-16
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 100,001 $0.75 582,514
(Direct)		 View
2021-03-12
Exercise		 2021-03-16
5:30 pm		 N/A
2021-05-01		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 100,001 $0 582,514
(Direct)		 View
2021-03-12
Tax Withholding		 2021-03-16
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 773 $97.05 582,514
(Direct)		 View
2020-11-25
Tax Withholding		 2020-11-27
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 1,017 $73.76 682,270
(Direct)		 View
2020-11-25
Exercise		 2020-11-27
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 100,000 $0.75 682,270
(Direct)		 View
2020-11-25
Exercise		 2020-11-27
5:30 pm		 N/A
2021-05-01		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 100,000 $0 682,270
(Direct)		 View
2020-08-27
Exercise		 2020-08-31
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 70,000 $0.75 586,073
(Direct)		 View
2020-08-27
Tax Withholding		 2020-08-31
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 547 $96.05 586,073
(Direct)		 View
2020-08-27
Exercise		 2020-08-31
5:30 pm		 N/A
2021-05-01		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 70,000 $0 586,073
(Direct)		 View
2020-08-05
Option Award		 2020-08-07
7:03 pm		 N/A
2030-03-19		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 181,799 $0 181,799
(Direct)		 View
2020-05-21
Conversion		 2020-05-26
5:30 pm		 N/A
N/A		 ACM Research Inc. ACMR Wang David H
See remarks
10% Owner		 33,334 $0 1,872,222
(Indirect)		 View
(A) Indicate amendment filing.