Wang David H - Insider Non-Derivative Transactions at ACM Research, Inc. (ACMR) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 4, 2025, Wang David H's relationship to ACM Research, Inc. (ACMR) is Director,Officer,TenPercentOwner (See Remarks), and currently has 862,708 shares of Class A Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other ACMR insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Wang David H - Insider Non-Derivative Transactions of ACMR Class A Common Stock
Wang David H - Insider Non-Derivative Transactions at ACMR
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 5, 2025 | Sell -- (Class A Common Stock) | 40183 | 34.42 | 802708 |
| Dec 5, 2025 | Sell -- (Class A Common Stock) | 19817 | 33.52 | 842891 |
| Dec 5, 2025 | M -- (Class A Common Stock) | 60000 | 1 | 862708 |
| Dec 4, 2025 | Sell -- (Class A Common Stock) | 1200 | 33.56 | 802708 |
| Dec 4, 2025 | Sell -- (Class A Common Stock) | 68800 | 33.05 | 803908 |
| Dec 4, 2025 | M -- (Class A Common Stock) | 70000 | 1 | 872708 |
| Sep 9, 2025 | M -- (Class A Common Stock) | 130000 | 1 | 802708 |
| Sep 5, 2025 | Sell -- (Class A Common Stock) | 60000 | 26.44 | 672708 |
| Sep 5, 2025 | M -- (Class A Common Stock) | 60000 | 1 | 732708 |
| Sep 4, 2025 | Sell -- (Class A Common Stock) | 3943 | 27.31 | 672708 |
| Sep 4, 2025 | Sell -- (Class A Common Stock) | 66057 | 26.73 | 676651 |
| Sep 4, 2025 | M -- (Class A Common Stock) | 70000 | 1 | 742708 |
| May 23, 2025 | Sell -- (Class A Common Stock) | 60000 | 22.63 | 672708 |
| May 23, 2025 | M -- (Class A Common Stock) | 60000 | 1 | 732708 |
| May 22, 2025 | Sell -- (Class A Common Stock) | 8 | 24.04 | 672708 |
| May 22, 2025 | Sell -- (Class A Common Stock) | 69992 | 23.6 | 672716 |
| May 22, 2025 | M -- (Class A Common Stock) | 70000 | 1 | 742708 |
| Mar 14, 2025 | Sell -- (Class A Common Stock) | 1019 | 27.65 | 672708 |
| Mar 14, 2025 | Sell -- (Class A Common Stock) | 36481 | 27.29 | 673727 |
| Mar 13, 2025 | Sell -- (Class A Common Stock) | 37500 | 27.42 | 710208 |
| Mar 12, 2025 | Sell -- (Class A Common Stock) | 56250 | 26.57 | 747708 |
| Mar 4, 2025 | F -- (Class A Common Stock) | 4048 | 25.94 | 803958 |
| Mar 4, 2025 | M -- (Class A Common Stock) | 210000 | 0.5 | 808006 |
| Nov 30, 2024 | Sell -- (Class A Common Stock) | 56250 | 17.44 | 598006 |
| Nov 27, 2024 | Sell -- (Class A Common Stock) | 9484 | 18.31 | 654256 |
| Nov 27, 2024 | Sell -- (Class A Common Stock) | 46766 | 17.8 | 663740 |
| Nov 23, 2024 | Sell -- (Class A Common Stock) | 56250 | 19.08 | 710506 |
| Nov 15, 2024 | F -- (Class A Common Stock) | 7262 | 18.59 | 766756 |
| Nov 15, 2024 | M -- (Class A Common Stock) | 270000 | 0.5 | 774018 |
| May 30, 2024 | Sell -- (Class A Common Stock) | 41090 | 22.62 | 504018 |
| May 30, 2024 | Sell -- (Class A Common Stock) | 45000 | 22.62 | 545108 |
| May 23, 2024 | Sell -- (Class A Common Stock) | 45000 | 22.81 | 590108 |
| May 23, 2024 | Sell -- (Class A Common Stock) | 45000 | 22.81 | 635108 |
| May 15, 2024 | F -- (Class A Common Stock) | 3910 | 23.02 | 680108 |
| May 15, 2024 | M -- (Class A Common Stock) | 180000 | 0.5 | 684018 |
| Mar 15, 2024 | Sell -- (Class A Common Stock) | 10611 | 28.38 | 504018 |
| Mar 15, 2024 | Sell -- (Class A Common Stock) | 76478 | 27.51 | 514629 |
| Mar 9, 2024 | Sell -- (Class A Common Stock) | 45000 | 30.35 | 591107 |
| Mar 9, 2024 | Sell -- (Class A Common Stock) | 45000 | 30.36 | 636107 |
| Mar 2, 2024 | F -- (Class A Common Stock) | 2911 | 30.92 | 681107 |
| Mar 2, 2024 | M -- (Class A Common Stock) | 180000 | 0.5 | 684018 |
| Nov 30, 2023 | Sell -- (Class A Common Stock) | 39776 | 17.13 | 504018 |
| Nov 30, 2023 | Sell -- (Class A Common Stock) | 45000 | 17.14 | 543794 |
| Nov 23, 2023 | Sell -- (Class A Common Stock) | 45000 | 17.68 | 588794 |
| Nov 23, 2023 | Sell -- (Class A Common Stock) | 45000 | 17.67 | 633794 |
| Nov 15, 2023 | F -- (Class A Common Stock) | 5224 | 17.23 | 678794 |
| Nov 15, 2023 | M -- (Class A Common Stock) | 180000 | 0.5 | 684018 |
| Sep 14, 2023 | Sell -- (Class A Common Stock) | 85116 | 17.68 | 504018 |
| Sep 13, 2023 | Sell -- (Class A Common Stock) | 3573 | 18.72 | 589134 |
| Sep 13, 2023 | Sell -- (Class A Common Stock) | 86427 | 18.03 | 592707 |
| Sep 5, 2023 | F -- (Class A Common Stock) | 4884 | 18.43 | 679134 |
| Sep 5, 2023 | M -- (Class A Common Stock) | 180000 | 0.5 | 684018 |
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