ACM Research, Inc.
| Security | ACMR / ACM Research, Inc. |
| Insider | David H Wang |
This page shows the track record and history of Wang David H
insider trades in ACM Research, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company.
It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean
it is illegal for them to make any
trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis
In this section, we analyze the profitability of every unplanned, open-market insider purchase made by David H Wang in ACMR / ACM Research, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.
The following table shows the most recent open market purchases that were not part of an automatic trading plan.
| Trade Date | Reported Shares |
Reported Price |
Adjusted Shares |
Adjusted Price |
Cost Basis | Days to Max |
Price at Max |
Max Profit ($) |
Max Return (%) |
|---|---|---|---|---|---|---|---|
| There are no known unplanned open-market trades for this insider |
Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.
Insider Sales - Short Term Loss Analysis
In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by David H Wang in ACMR / ACM Research, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.
The following table shows the most recent open market purchases that were not part of an automatic trading plan.
| Trade Date | Reported Shares |
Reported Price |
Adjusted Shares |
Adjusted Price |
Cost Basis | Days to Min |
Price at Min |
Max Loss Avoided ($) |
Max Loss Avoided (%) |
|---|---|---|---|---|---|---|---|
| There are no known unplanned open-market trades for this insider |
Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.
Insider Transaction History
| File Date |
Trade Date |
Form | Insider | Ticker | Security Title | Code | Direct | Exercise Price |
Unit Price |
Units Changed |
Value Changed (1K) |
Remaining Options |
Remaining Shares |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-09-05 | 2025-09-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 26.4400 | -60,000 | -1,586 | 672,708 | ||||
| 2025-09-05 | 2025-09-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 1.0000 | 60,000 | 60 | 732,708 | ||||
| 2025-09-05 | 2025-09-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 27.3100 | -3,943 | -108 | 672,708 | ||||
| 2025-09-05 | 2025-09-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 26.7300 | -66,057 | -1,766 | 676,651 | ||||
| 2025-09-05 | 2025-09-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 1.0000 | 70,000 | 70 | 742,708 | ||||
| 2025-05-23 | 2025-05-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.6300 | -60,000 | -1,358 | 672,708 | ||||
| 2025-05-23 | 2025-05-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 1.0000 | 60,000 | 60 | 732,708 | ||||
| 2025-05-23 | 2025-05-21 | 4 | Wang David H | ACMR | Class A Common Stock | D | 24.0400 | -8 | -0 | 672,708 | ||||
| 2025-05-23 | 2025-05-21 | 4 | Wang David H | ACMR | Class A Common Stock | D | 23.6000 | -69,992 | -1,652 | 672,716 | ||||
| 2025-05-23 | 2025-05-21 | 4 | Wang David H | ACMR | Class A Common Stock | D | 1.0000 | 70,000 | 70 | 742,708 | ||||
| 2025-03-13 | 2025-03-13 | 4 | Wang David H | ACMR | Class A Common Stock | D | 27.6500 | -1,019 | -28 | 672,708 | ||||
| 2025-03-13 | 2025-03-13 | 4 | Wang David H | ACMR | Class A Common Stock | D | 27.2900 | -36,481 | -996 | 673,727 | ||||
| 2025-03-13 | 2025-03-12 | 4 | Wang David H | ACMR | Class A Common Stock | D | 27.4200 | -37,500 | -1,028 | 710,208 | ||||
| 2025-03-13 | 2025-03-11 | 4 | Wang David H | ACMR | Class A Common Stock | D | 26.5700 | -56,250 | -1,495 | 747,708 | ||||
| 2025-03-05 | 2025-03-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 25.9400 | -4,048 | -105 | 803,958 | ||||
| 2025-03-05 | 2025-03-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 210,000 | 105 | 808,006 | ||||
| 2024-12-03 | 2024-11-29 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.4400 | -56,250 | -981 | 598,006 | ||||
| 2024-11-29 | 2024-11-26 | 4 | Wang David H | ACMR | Class A Common Stock | D | 18.3100 | -9,484 | -174 | 654,256 | ||||
| 2024-11-29 | 2024-11-26 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.8000 | -46,766 | -832 | 663,740 | ||||
| 2024-11-26 | 2024-11-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 19.0800 | -56,250 | -1,073 | 710,506 | ||||
| 2024-11-18 | 2024-11-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 18.5900 | -7,262 | -135 | 766,756 | ||||
| 2024-11-18 | 2024-11-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 270,000 | 135 | 774,018 | ||||
| 2024-05-31 | 2024-05-29 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.6200 | -41,090 | -929 | 504,018 | ||||
| 2024-05-31 | 2024-05-29 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.6200 | -45,000 | -1,018 | 545,108 | ||||
| 2024-05-24 | 2024-05-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.8100 | -45,000 | -1,026 | 590,108 | ||||
| 2024-05-24 | 2024-05-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.8100 | -45,000 | -1,026 | 590,108 | ||||
| 2024-05-16 | 2024-05-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 23.0200 | -3,910 | -90 | 680,108 | ||||
| 2024-05-16 | 2024-05-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 180,000 | 90 | 684,018 | ||||
| 2024-03-15 | 2024-03-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 28.3800 | -10,611 | -301 | 504,018 | ||||
| 2024-03-15 | 2024-03-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 27.5100 | -76,478 | -2,104 | 514,629 | ||||
| 2024-03-12 | 2024-03-08 | 4 | Wang David H | ACMR | Class A Common Stock | D | 30.3500 | -45,000 | -1,366 | 591,107 | ||||
| 2024-03-12 | 2024-03-08 | 4 | Wang David H | ACMR | Class A Common Stock | D | 30.3600 | -45,000 | -1,366 | 636,107 | ||||
| 2024-03-05 | 2024-03-01 | 4 | Wang David H | ACMR | Class A Common Stock | D | 30.9200 | -2,911 | -90 | 681,107 | ||||
| 2024-03-05 | 2024-03-01 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 180,000 | 90 | 684,018 | ||||
| 2023-12-01 | 2023-11-29 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.1300 | -39,776 | -681 | 504,018 | ||||
| 2023-12-01 | 2023-11-29 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.1400 | -45,000 | -771 | 543,794 | ||||
| 2023-11-27 | 2023-11-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.6800 | -45,000 | -796 | 588,794 | ||||
| 2023-11-27 | 2023-11-22 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.6700 | -45,000 | -795 | 633,794 | ||||
| 2023-11-16 | 2023-11-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.2300 | -5,224 | -90 | 678,794 | ||||
| 2023-11-16 | 2023-11-14 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 180,000 | 90 | 684,018 | ||||
| 2023-09-14 | 2023-09-13 | 4 | Wang David H | ACMR | Class A Common Stock | D | 17.6800 | -85,116 | -1,505 | 504,018 | ||||
| 2023-09-14 | 2023-09-12 | 4 | Wang David H | ACMR | Class A Common Stock | D | 18.7200 | -3,573 | -67 | 589,134 | ||||
| 2023-09-14 | 2023-09-12 | 4 | Wang David H | ACMR | Class A Common Stock | D | 18.0300 | -86,427 | -1,558 | 592,707 | ||||
| 2023-09-06 | 2023-09-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 18.4300 | -4,884 | -90 | 679,134 | ||||
| 2023-09-06 | 2023-09-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.5000 | 180,000 | 90 | 684,018 | ||||
| 2021-03-22 | 2021-03-19 | 4 | Wang David H | ACMR | Class A Common Stock | D | 90.5500 | -49,228 | -4,458 | 168,006 | ||||
| 2021-03-22 | 2021-03-18 | 4 | Wang David H | ACMR | Class A Common Stock | D | 91.9200 | -50,000 | -4,596 | 217,234 | ||||
| 2021-03-16 | 2021-03-12 | 4 | Wang David H | ACMR | Stock Option | D | 0.75 | -100,001 | 0 | |||||
| 2021-03-16 | 2021-03-12 | 4 | Wang David H | ACMR | Class A Common Stock | D | 97.0500 | -773 | -75 | 267,234 | ||||
| 2021-03-16 | 2021-03-12 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.7500 | 100,001 | 75 | 268,007 | ||||
| 2020-12-07 | 2020-12-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 77.1400 | -49,322 | -3,805 | 168,006 | ||||
| 2020-12-07 | 2020-12-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 82.5000 | -32,995 | -2,722 | 217,328 | ||||
| 2020-12-07 | 2020-12-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 82.5000 | -16,666 | -1,375 | 250,323 | ||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Stock Option | D | 0.75 | -66,666 | 100,001 | |||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Stock Option | D | 0.75 | -33,334 | 0 | |||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Class A Common Stock | D | 73.7600 | -678 | -50 | 266,989 | ||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.7500 | 66,666 | 50 | 267,667 | ||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Class A Common Stock | D | 73.7600 | -339 | -25 | 201,001 | ||||
| 2020-11-27 | 2020-11-25 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.7500 | 33,334 | 25 | 201,340 | ||||
| 2020-09-04 | 2020-09-04 | 4 | Wang David H | ACMR | Class A Common Stock | D | 80.0800 | -49,453 | -3,960 | 168,006 | ||||
| 2020-09-04 | 2020-09-03 | 4 | Wang David H | ACMR | Class A Common Stock | D | 84.5300 | -20,000 | -1,691 | 217,459 | ||||
| 2020-08-31 | 2020-08-27 | 4 | Wang David H | ACMR | Stock Option | D | 0.75 | -70,000 | 33,334 | |||||
| 2020-08-31 | 2020-08-27 | 4 | Wang David H | ACMR | Class A Common Stock | D | 96.0500 | -547 | -53 | 237,459 | ||||
| 2020-08-31 | 2020-08-27 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.7500 | 70,000 | 52 | 238,006 | ||||
| 2020-08-07 | 2020-08-05 | 4 | Wang David H | ACMR | Class A Common Stock | D | 22.07 | 181,799 | 181,799 | |||||
| 2020-05-26 | 2020-05-21 | 4 | Wang David H By Jing Chen, wife of David H. Wang | ACMR | Class B Common Stock | I | -33,334 | 0 | ||||||
| 2020-05-26 | 2020-05-21 | 4 | Wang David H By Jing Chen, wife of David H. Wang | ACMR | Class A Common Stock | I | 33,334 | 33,334 | ||||||
| 2019-08-27 | 2019-08-23 | 4 | Wang David H | ACMR | Class A Common Stock | D | 13.1950 | -28,661 | -378 | 168,006 | ||||
| 2019-08-21 | 2019-08-20 | 4 | Wang David H | ACMR | Stock Option | D | 0.75 | -30,000 | 103,334 | |||||
| 2019-08-21 | 2019-08-20 | 4 | Wang David H | ACMR | Class A Common Stock | D | 0.7500 | 30,000 | 22 | 196,667 | ||||
| 2019-04-25 | 2019-04-23 | 4 | Wang David H | ACMR | Stock Options | D | 16.81 | 50,000 | 50,000 | |||||
| 2018-07-03 | 2018-06-29 | 4 | Wang David H By Sophia Wang, daughter of David H. Wang | ACMR | Stock Option | I | 3.00 | -15,279 | 0 | |||||
| 2018-07-03 | 2018-06-29 | 4 | Wang David H By Sophia Wang, daughter of David H. Wang | ACMR | Class A Common Stock | I | 3.0000 | 15,279 | 46 | 15,279 | ||||
| 2017-11-02 | 3 | Wang David H | ACMR | Class A Common Stock | D | 2,022,271 | ||||||||
| 2017-11-02 | 3 | Wang David H | ACMR | Class B Common Stock | D | 3,002,538 | ||||||||
| 2017-11-02 | 3 | Wang David H By the David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | ACMR | Class A Common Stock | I | 1,915,604 | ||||||||
| 2017-11-02 | 3 | Wang David H By the David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | ACMR | Class B Common Stock | I | 1,862,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By the Wang-Chen Family Living Trust | ACMR | Class A Common Stock | I | 2,062,271 | ||||||||
| 2017-11-02 | 3 | Wang David H By Jing Chen, wife of David H. Wang | ACMR | Class B Common Stock | I | 1,888,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By Brian Wang, son of David H. Wang | ACMR | Class B Common Stock | I | 1,972,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By Sophia Wang, daughter of David H. Wang | ACMR | Class B Common Stock | I | 1,972,938 | ||||||||
| 2017-11-02 | 3 | Wang David H | ACMR | Class A Common Stock | D | 2,022,271 | ||||||||
| 2017-11-02 | 3 | Wang David H | ACMR | Class B Common Stock | D | 3,002,538 | ||||||||
| 2017-11-02 | 3 | Wang David H By the David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | ACMR | Class A Common Stock | I | 1,915,604 | ||||||||
| 2017-11-02 | 3 | Wang David H By the David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | ACMR | Class B Common Stock | I | 1,862,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By the Wang-Chen Family Living Trust | ACMR | Class A Common Stock | I | 2,062,271 | ||||||||
| 2017-11-02 | 3 | Wang David H By Jing Chen, wife of David H. Wang | ACMR | Class B Common Stock | I | 1,888,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By Brian Wang, son of David H. Wang | ACMR | Class B Common Stock | I | 1,972,938 | ||||||||
| 2017-11-02 | 3 | Wang David H By Sophia Wang, daughter of David H. Wang | ACMR | Class B Common Stock | I | 1,972,938 |
P
Открытый рынок или частная покупка непроизводных или производных ценных бумаг
S
Открытый рынок или частная продажа непроизводных или производных ценных бумаг
A
Предоставление, награждение или иное приобретение ценных бумаг у компании (например, опцион)
C
Конвертация производной
D
Продажа или передача ценных бумаг обратно компании
F
Оплата цены исполнения или налогового обязательства с использованием части ценных бумаг, полученных от компании
G
Дарение ценных бумаг инсайдером или ему
K
Обмен акциями и аналогичные операции хеджирования
M
Исполнение или конвертация производных ценных бумаг, полученных от компании (например, опциона)
V
Сделка, добровольно зарегистрированная в Форме 4.
J
Другое (сопровождается сноской с описанием транзакции)
