Cheav Sotheara sold ACM Research Inc (ACMR) shares on the open market twice in the last year, for a total of $685,000. The most recent sale occurred on September 18, 2025. These sales rank 5,794th among 11,678 individual insiders, where the average is 8.6 million per person across about 6.4 transactions. Cheav Sotheara made no open market purchases of ACMR stock in the past 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 18, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 10000 | $35.00 | 100,002.0000 | 66,237,424 | 9.09% | 0.02% |
| Sept. 18, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 10000 | $13.89 | 110,002.0000 | 66,237,424 | 10.00% | 0.02% |
| Sept. 18, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 10000 | $0.00 | 56,250.0000 | 66,237,424 | 15.09% | 0.02% |
| Aug. 22, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 11152 | $13.89 | 111,154.0000 | 66,237,424 | 11.15% | 0.02% |
| Aug. 22, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 11152 | $30.00 | 100,002.0000 | 66,237,424 | 10.03% | 0.02% |
| Aug. 22, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 11152 | $0.00 | 66,250.0000 | 66,237,424 | 14.41% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 10000 | $13.89 | 110,002.0000 | 66,237,424 | 10.00% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 12598 | $13.89 | 122,600.0000 | 66,237,424 | 11.45% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 22598 | $23.00 | 100,002.0000 | 66,237,424 | 18.43% | 0.03% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 10000 | $0.00 | 90,000.0000 | 66,237,424 | 10.00% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 12598 | $0.00 | 77,402.0000 | 66,237,424 | 14.00% | 0.02% |
| March 14, 2024 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 2617 | $27.49 | 102,385.0000 | 64,870,543 | 2.49% | 0.00% |
| March 13, 2024 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 5000 | $29.09 | 105,002.0000 | 64,870,543 | 4.55% | 0.01% |
| March 14, 2024 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 2383 | $28.32 | 100,002.0000 | 64,870,543 | 2.33% | 0.00% |
| Nov. 13, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 26000 | $16.79 | 110,002.0000 | 65,341,771 | 19.12% | 0.04% |
| Nov. 13, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 13500 | $0.00 | 0.0000 | 65,341,771 | 100.00% | 0.02% |
| Nov. 13, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 12500 | $0.00 | 0.0000 | 65,341,771 | 100.00% | 0.02% |
| Nov. 13, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 13500 | $5.33 | 123,502.0000 | 65,341,771 | 12.27% | 0.02% |
| Nov. 13, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 12500 | $4.62 | 136,002.0000 | 65,341,771 | 10.12% | 0.02% |
| Aug. 10, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | A | Stock Option | 100000 | $0.00 | 100,000.0000 | 65,341,771 | 50.00% | 0.15% |
| Aug. 10, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | A | Stock Option | 100000 | $0.00 | 100,000.0000 | 65,341,771 | 50.00% | 0.15% |
| June 6, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | S | Class A Common Stock | 39000 | $10.00 | 110,002.0000 | 65,341,771 | 26.17% | 0.06% |
| June 6, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 22500 | $4.62 | 132,502.0000 | 65,341,771 | 20.45% | 0.03% |
| June 6, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 16500 | $0.00 | 13,500.0000 | 65,341,771 | 55.00% | 0.03% |
| June 6, 2022 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Stock Option | 22500 | $0.00 | 12,500.0000 | 0 | 64.29% | 0.00% |
| June 6, 2023 | ACM Research, Inc. | $ACMR | Cheav Sotheara | See remarks | M | Class A Common Stock | 16500 | $5.33 | 149,002.0000 | 65,341,771 | 12.45% | 0.03% |