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 | 4,806,0963,268,080 |
| Pappis Charles C | Director | Stock Option | Mar 5, 2026 | 25,000 | 0.04 | 1,201,500 |
| Cheav Sotheara | See remarks | Class A Common StockStock Option | Sep 18, 2025Sep 18, 2025 | 100,002156,250 | 0.150.24 | 4,806,0967,509,375 |
| Liu Tracy | Director | Class A Common StockStock Option | Sep 17, 2025Sep 17, 2025 | 110,772167,500 | 0.170.25 | 5,323,7028,050,050 |
| Wang David H | See Remarks | Class A Common StockStock Option | Dec 4, 2025Feb 4, 2026 | 802,7084,276,199 | 1.226.51 | 38,578,146205,514,124 |
| Dun Haiping | Director | Stock Option | Aug 12, 2025 | 88,000 | 0.13 | 4,229,280 |
| Wang Jian | See remarks | Class A Common StockStock Option | Sep 18, 2025Sep 18, 2025 | 253,15815,000 | 0.390.02 | 12,166,773720,900 |
| Chen Fuping | See remarks | Stock Option | Dec 3, 2025 | 54,165 | 0.08 | 2,603,170 |
| Mckechnie Mark | See Remarks | Class A Common StockStock Option | Dec 8, 2025Dec 8, 2025 | 900600,000 | 0.000.91 | 43,25428,836,000 |
| Feng Lisa | See remarks | Class A Common StockStock Option | Mar 6, 2026Mar 6, 2026 | 50,001222,500 | 0.080.34 | 2,403,04810,693,350 |
| Xing Xiao | Director | Class A Common StockStock Option | Oct 8, 2024Aug 10, 2023 | 2,338,51048,000 | 3.560.07 | 112,388,7912,306,880 |
| 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 | 112,388,791 |
| 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 | 112,388,791 |
Insider Trading Trends
Insider Transactions
Voluntary Buys vs Sells
Historical Insider Trading (3-Years)
10b5-1
| Feng Lisa | Class A Common Stock | No | Yes | Sell | DISPOSE S | 46.58 | -200 | 9,316 | 50,001 | Mar 6, 2026 | |
| Feng Lisa | Class A Common Stock | No | No | Exercise/Conversion | DISPOSE M | 4.55 | -15,000 | 68,250 | 0 | Mar 6, 2026 | |
| Feng Lisa | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 4.55 | +15,000 | 68,250 | 65,001 | Mar 6, 2026 | |
| Feng Lisa | Class A Common Stock | No | Yes | Sell | DISPOSE S | 46.07 | -14,800 | 681,836 | 50,201 | Mar 6, 2026 | |
| Pappis Charles C | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 29.18 | +5,000 | 145,900 | 5,000 | Mar 5, 2026 | |
| Feng Lisa | Class A Common Stock | No | No | Exercise/Conversion | ACQUIRE M | 4.55 | +15,000 | 68,250 | 65,001 | Mar 5, 2026 | |
| Feng Lisa | Class A Common Stock | No | Yes | Sell | DISPOSE S | 49.81 | -8,050 | 400,971 | 56,951 | Mar 5, 2026 | |
| Pappis Charles C | Class A Common Stock | No | Yes | Sell | DISPOSE S | 50.09 | -5,000 | 250,450 | 0 | Mar 5, 2026 | |
| Feng Lisa | Class A Common Stock | No | Yes | Sell | DISPOSE S | 50.24 | -6,950 | 349,168 | 50,001 | Mar 5, 2026 | |
| Pappis Charles C | Class A Common Stock | No | No | Exercise/Conversion | DISPOSE M | 29.18 | -5,000 | 145,900 | 5,000 | Mar 5, 2026 |
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