McKechnie Mark sold ACM Research ($ACMR) shares on the open market four times over the last year, totaling about $1.47 million. His most recent sale occurred on December 8, 2025. These sales rank 4,101st among 11,678 individual insiders in our database, where the average is $8.6 million across about 6.4 transactions. He 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 8639 | $44.94 | 30,812.0000 | 68,414,313 | 21.90% | 0.01% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 38551 | $19.49 | 39,451.0000 | 68,414,313 | 4283.44% | 0.06% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 982 | $46.55 | 900.0000 | 68,414,313 | 52.18% | 0.00% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 60000 | $13.89 | 60,900.0000 | 68,414,313 | 6666.67% | 0.09% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 11910 | $44.89 | 48,990.0000 | 68,414,313 | 19.56% | 0.02% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 47108 | $45.74 | 1,882.0000 | 68,414,313 | 96.16% | 0.07% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 38551 | $0.00 | 61,449.0000 | 68,414,313 | 38.55% | 0.06% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 60000 | $0.00 | 240,000.0000 | 68,414,313 | 20.00% | 0.09% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 564 | $46.57 | 900.0000 | 68,414,313 | 38.52% | 0.00% |
| March 12, 2026 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 29348 | $45.74 | 1,464.0000 | 68,414,313 | 95.25% | 0.04% |
| Dec. 8, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 22500 | $25.45 | 23,400.0000 | 68,414,313 | 2500.00% | 0.03% |
| Dec. 4, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 7754 | $33.50 | 1,896.0000 | 68,414,313 | 80.35% | 0.01% |
| Dec. 4, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 8750 | $4.55 | 9,650.0000 | 68,414,313 | 972.22% | 0.01% |
| Dec. 4, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 8750 | $0.00 | 0.0000 | 68,414,313 | 100.00% | 0.01% |
| Dec. 8, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 22500 | $35.45 | 900.0000 | 68,414,313 | 96.15% | 0.03% |
| Dec. 4, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 996 | $34.26 | 900.0000 | 68,414,313 | 52.53% | 0.00% |
| Dec. 8, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 22500 | $0.00 | 0.0000 | 68,414,313 | 100.00% | 0.03% |
| May 14, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 15000 | $5.60 | 15,900.0000 | 66,237,424 | 1666.67% | 0.02% |
| May 14, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 15000 | $0.00 | 0.0000 | 66,237,424 | 100.00% | 0.02% |
| May 14, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 15000 | $25.22 | 900.0000 | 66,237,424 | 94.34% | 0.02% |
| March 12, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 15000 | $0.00 | 15,000.0000 | 66,237,424 | 50.00% | 0.02% |
| March 12, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 15000 | $5.60 | 15,900.0000 | 66,237,424 | 1666.67% | 0.02% |
| March 12, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 15000 | $27.42 | 900.0000 | 66,237,424 | 94.34% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 15000 | $22.00 | 900.0000 | 66,237,424 | 94.34% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 15000 | $0.00 | 30,000.0000 | 66,237,424 | 33.33% | 0.02% |
| Feb. 6, 2025 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 15000 | $5.60 | 15,900.0000 | 66,237,424 | 1666.67% | 0.02% |
| Oct. 4, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 16516 | $0.00 | 45,000.0000 | 66,671,526 | 26.85% | 0.02% |
| Oct. 4, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 16516 | $22.00 | 900.0000 | 66,671,526 | 94.83% | 0.02% |
| Oct. 4, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 16516 | $5.60 | 17,416.0000 | 66,671,526 | 1835.11% | 0.02% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 14016 | $4.62 | 14,916.0000 | 64,870,543 | 1557.33% | 0.02% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 5984 | $22.92 | 900.0000 | 64,870,543 | 86.93% | 0.01% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 5984 | $5.60 | 6,884.0000 | 64,870,543 | 664.89% | 0.01% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 14016 | $22.92 | 900.0000 | 64,870,543 | 93.97% | 0.02% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 5984 | $0.00 | 61,516.0000 | 64,870,543 | 8.87% | 0.01% |
| June 6, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 14016 | $0.00 | 0.0000 | 64,870,543 | 100.00% | 0.02% |
| Jan. 12, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 10000 | $0.00 | 8,750.0000 | 64,870,543 | 53.33% | 0.02% |
| Jan. 12, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 10000 | $22.00 | 900.0000 | 64,870,543 | 91.74% | 0.02% |
| Jan. 12, 2024 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 10000 | $4.55 | 10,900.0000 | 64,870,543 | 1111.11% | 0.02% |
| Oct. 11, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 11250 | $0.00 | 18,750.0000 | 65,341,771 | 37.50% | 0.02% |
| Oct. 11, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 11250 | $20.00 | 900.0000 | 65,341,771 | 92.59% | 0.02% |
| Oct. 11, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 11250 | $4.55 | 12,150.0000 | 65,341,771 | 1250.00% | 0.02% |
| Sept. 1, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Stock Option | 30000 | $0.00 | 30,000.0000 | 65,341,771 | 50.00% | 0.05% |
| Sept. 1, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | S | Class A Common Stock | 30000 | $18.00 | 900.0000 | 65,341,771 | 97.09% | 0.05% |
| Sept. 1, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | M | Class A Common Stock | 30000 | $4.55 | 30,900.0000 | 65,341,771 | 3333.33% | 0.05% |
| Aug. 10, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | A | Stock Option | 300000 | $0.00 | 300,000.0000 | 65,341,771 | 50.00% | 0.46% |
| Aug. 10, 2023 | ACM Research, Inc. | $ACMR | McKechnie Mark | See Remarks | A | Stock Option | 300000 | $0.00 | 300,000.0000 | 65,341,771 | 50.00% | 0.46% |