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Yiheng Capital Management, L.P.
> ACMR
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | ACM Research, Inc. | ACMR | 512,700 | 210,400 | 6,706,116,000 | 4,375,383,000 | $13,080.00 |
| 12/31/2022 | ACM Research, Inc. | ACMR | 302,300 | 0 | 2,330,733,000 | 2,326,966,000 | $7,710.00 |
| 09/30/2022 | ACM Research, Inc. | ACMR | 302,300 | -4,964,500 | 3,767,000 | -84,873,000 | $12.46 |
| 06/30/2022 | ACM Research, Inc. | ACMR | 5,266,800 | 964,800 | 88,640,000 | -368,000 | $16.83 |
| 03/31/2022 | ACM Research, Inc. | ACMR | 4,302,000 | 2,886,900 | 89,008,000 | -31,658,000 | $20.69 |
| 12/31/2021 | ACM Research, Inc. | ACMR | 1,415,100 | 570,900 | 120,666,000 | 27,804,000 | $85.27 |
| 09/30/2021 | ACM Research, Inc. | ACMR | 844,200 | 0 | 92,862,000 | 6,568,000 | $110.00 |
| 06/30/2021 | ACM Research, Inc. | ACMR | 844,200 | 802,722 | 86,294,000 | 82,924,000 | $102.22 |
| 12/31/2020 | ACM Research, Inc. | ACMR | 41,478 | 0 | 3,370,000 | 504,000 | $81.25 |
| 09/30/2020 | ACM Research, Inc. | ACMR | 41,478 | 0 | 2,866,000 | 279,000 | $69.10 |
| 06/30/2020 | ACM Research, Inc. | ACMR | 41,478 | 0 | 2,587,000 | 1,359,000 | $62.37 |
| 03/31/2020 | ACM Research, Inc. | ACMR | 41,478 | 41,478 | 1,228,000 | 1,228,000 | $29.61 |
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