ACM Research, Inc.Insider Ownership
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Current Insider Ownership
| Hu Chenming | Director | Class A Common StockStock Option | Mar 17, 2025Aug 12, 2024 | 100,00268,000 | 0.150.10 | 4,492,0903,054,560 |
| Pappis Charles C | Director | Stock Option | Aug 12, 2025 | 30,000 | 0.05 | 1,347,600 |
| Cheav Sotheara | See remarks | Class A Common StockStock Option | Sep 18, 2025Sep 18, 2025 | 100,002156,250 | 0.150.24 | 4,492,0907,018,750 |
| Liu Tracy | Director | Class A Common StockStock Option | Sep 17, 2025Sep 17, 2025 | 110,772167,500 | 0.170.25 | 4,975,8787,524,100 |
| Wang David H | See Remarks | Class A Common StockStock Option | Dec 4, 2025Feb 4, 2026 | 802,7084,276,199 | 1.226.51 | 36,057,643192,086,859 |
| Dun Haiping | Director | Stock Option | Aug 12, 2025 | 88,000 | 0.13 | 3,952,960 |
| Wang Jian | See remarks | Class A Common StockStock Option | Sep 18, 2025Sep 18, 2025 | 253,15815,000 | 0.390.02 | 11,371,857673,800 |
| Chen Fuping | See remarks | Stock Option | Dec 3, 2025 | 54,165 | 0.08 | 2,433,092 |
| Mckechnie Mark | See Remarks | Class A Common StockStock Option | Dec 8, 2025Dec 8, 2025 | 900600,000 | 0.000.91 | 40,42826,952,000 |
| Feng Lisa | See remarks | Class A Common StockStock Option | Nov 13, 2025Nov 13, 2025 | 50,001222,500 | 0.080.34 | 2,246,0459,994,700 |
| Xing Xiao | Director | Class A Common StockStock Option | Oct 8, 2024Aug 10, 2023 | 2,338,51048,000 | 3.560.07 | 105,045,8692,156,160 |
| Shanghai Pudong Science & Technology Investment Group Co., Ltd. | 10% Owner | Class A Common Stock, $0.0001 par value | Oct 8, 2024 | 2,338,510 | 3.56 | 105,045,869 |
| Shanghai Science & Technology Venture Capital (Group) Co., Ltd. | 10% Owner | Class A Common Stock, $0.0001 par value | Oct 8, 2024 | 2,338,510 | 3.56 | 105,045,869 |
Insider Trading Trends
Insider Transactions
Voluntary Buys vs Sells
Historical Insider Trading (3-Years)
10b5-1
| Wang David H | Class A Common Stock | No | No | Grant | ACQUIRE A | 7.36 | +545,400 | 4,014,144 | 1,636,197 | Feb 4, 2026 | |
| Mckechnie Mark | Class A Common Stock | No | Yes | Sell | DISPOSE S | 35.45 | -22,500 | 797,625 | 900 | Dec 8, 2025 | |
| Mckechnie Mark | Class A Common Stock | No | No | Exercise/Conversion | DISPOSE M | 25.45 | -22,500 | 572,625 | 0 | Dec 8, 2025 | |
| Mckechnie Mark | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 25.45 | +22,500 | 572,625 | 23,400 | Dec 8, 2025 | |
| Wang David H | Class A Common Stock | No | Yes | Sell | DISPOSE S | 33.52 | -19,817 | 664,266 | 842,891 | Dec 4, 2025 | |
| Wang David H | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 1.00 | +60,000 | 60,000 | 862,708 | Dec 4, 2025 | |
| Wang David H | Class A Common Stock | No | No | Exercise/Conversion | DISPOSE M | 1.00 | -60,000 | 60,000 | 480,002 | Dec 4, 2025 | |
| Mckechnie Mark | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 4.55 | +8,750 | 39,813 | 9,650 | Dec 4, 2025 | |
| Mckechnie Mark | Class A Common Stock | No | Yes | Sell | DISPOSE S | 33.50 | -7,754 | 259,759 | 1,896 | Dec 4, 2025 | |
| Wang David H | Class A Common Stock | No | Yes | Sell | DISPOSE S | 34.42 | -40,183 | 1,383,099 | 802,708 | Dec 4, 2025 |
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