Chen Fuping sold ACM Research ($ACMR) shares on the open market three times in the last year, totaling $3.98 million. The most recent sale occurred on December 3, 2025. These sales rank 2,260th among 11,678 individual insiders in our database, where the average is $8.59 million across about 6.4 transactions per insider. Chen Fuping made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 2, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Class A Common Stock | 100000 | $1.77 | 100,000.0000 | 68,414,313 | 9999.99% | 0.15% |
| Dec. 3, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Stock Option | 20000 | $0.00 | 21,165.0000 | 68,414,313 | 48.58% | 0.03% |
| Dec. 2, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Stock Option | 100000 | $0.00 | 41,165.0000 | 68,414,313 | 70.84% | 0.15% |
| Dec. 3, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | S | Class A Common Stock | 300 | $33.57 | 0.0000 | 68,414,313 | 100.00% | 0.00% |
| Dec. 3, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | S | Class A Common Stock | 19700 | $33.05 | 300.0000 | 68,414,313 | 98.50% | 0.03% |
| Dec. 3, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Class A Common Stock | 20000 | $1.77 | 20,000.0000 | 68,414,313 | 9999.99% | 0.03% |
| Dec. 2, 2025 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | S | Class A Common Stock | 100000 | $33.20 | 0.0000 | 68,414,313 | 100.00% | 0.15% |
| Sept. 21, 2024 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | A | Stock Option | 30000 | $0.00 | 30,000.0000 | 64,870,543 | 9999.99% | 0.05% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Class A Common Stock | 96165 | $1.00 | 96,165.0000 | 65,341,771 | 9999.99% | 0.15% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Stock Option | 8835 | $0.00 | 141,165.0000 | 65,341,771 | 5.89% | 0.01% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Stock Option | 50001 | $0.00 | 0.0000 | 65,341,771 | 100.00% | 0.08% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Stock Option | 46164 | $0.00 | 0.0000 | 65,341,771 | 100.00% | 0.07% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | S | Class A Common Stock | 105000 | $15.00 | 0.0000 | 65,341,771 | 100.00% | 0.16% |
| Aug. 23, 2023 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | M | Class A Common Stock | 8835 | $1.77 | 105,000.0000 | 65,341,771 | 9.19% | 0.01% |
| Dec. 30, 2022 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | A | Stock Option | 3000 | $0.00 | 3,000.0000 | 0 | 9999.99% | 0.00% |
| Dec. 30, 2022 | ACM Research, Inc. | $ACMR | Chen Fuping | See remarks | A | Stock Option | 13500 | $0.00 | 13,500.0000 | 0 | 9999.99% | 0.00% |