The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Dun Haiping since 2022.
This trader's CIK number is 1721581.
At the time of last reporting, Dun Haiping was the Officer of Acm Research, Inc.. (stock ticker symbol ACMR).
Also see all insider trading activities at Acm Research, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ACMR | 0 | $0 | 24,519 | $672,006 | 25,001 | $12,500 |
| 2024 | ACMR | 0 | $0 | 136,828 | $3,039,161 | 105,000 | $52,500 |
| 2023 | ACMR | 0 | $0 | 126,082 | $1,599,281 | 75,000 | $37,500 |
| 2022 | ACMR | 0 | $0 | 156,802 | $3,135,377 | 174,769 | $112,153 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-03-14 | ACMR | Sale | 9,518 | 28.77 | 273,880 |
| 2025-03-10 | ACMR | Sale | 15,001 | 26.54 | 398,126 |
| 2025-03-03 | ACMR | Option Ex | 25,001 | .50 | 12,500 |
| 2024-11-29 | ACMR | Sale | 19,058 | 17.43 | 332,180 |
| 2024-11-22 | ACMR | Sale | 15,000 | 19.12 | 286,800 |
| 2024-08-29 | ACMR | Sale | 19,097 | 18.08 | 345,273 |
| 2024-08-22 | ACMR | Sale | 15,000 | 19.85 | 297,750 |
| 2024-08-14 | ACMR | Option Ex | 35,000 | .50 | 17,500 |
| 2024-05-29 | ACMR | Sale | 19,239 | 22.63 | 435,378 |
| 2024-05-22 | ACMR | Sale | 15,000 | 22.88 | 343,200 |
| 2024-05-14 | ACMR | Option Ex | 35,000 | .50 | 17,500 |
| 2024-03-14 | ACMR | Sale | 19,434 | 27.95 | 543,180 |
| 2024-03-08 | ACMR | Sale | 15,000 | 30.36 | 455,400 |
| 2024-03-01 | ACMR | Option Ex | 35,000 | .50 | 17,500 |
| 2023-11-29 | ACMR | Sale | 18,984 | 17.25 | 327,474 |
| 2023-08-22 | ACMR | Sale | 32,098 | 13.85 | 444,557 |
| 2023-06-01 | ACMR | Sale | 37,500 | 10.00 | 375,000 |
| 2023-05-22 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2023-03-16 | ACMR | Sale | 37,500 | 12.06 | 452,250 |
| 2023-03-09 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2022-11-30 | ACMR | Sale | 35,327 | 8.43 | 297,806 |
| 2022-11-22 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2022-11-14 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2022-08-22 | ACMR | Sale | 36,537 | 16.10 | 588,245 |
| 2022-08-15 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2022-08-15 | ACMR | Sale | 36,519 | 19.28 | 704,086 |
| 2022-05-27 | ACMR | Sale | 36,150 | 15.00 | 542,250 |
| 2022-05-18 | ACMR | Option Ex | 37,500 | .50 | 18,750 |
| 2022-03-09 | ACMR | Option Ex | 12,269 | 1.50 | 18,403 |
| 2022-03-09 | ACMR | Sale | 12,269 | 81.75 | 1,002,990 |
| 2022-03-02 | ACMR | Option Ex | 12,500 | 1.50 | 18,750 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Dun Haiping (Officer of Acm Research, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.