Pappas Charles C sold ACM Research Inc (ACMR) shares once on the open market in the last year, totaling $250,450, with the latest sale on March 5, 2026. His sales rank 7,959th among 11,678 insiders, below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases of ACMR stock.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | ACM Research, Inc. | $ACMR | Pappis Charles C | Not found | M | Class A Common Stock | 5000 | $29.18 | 5,000.0000 | 68,414,313 | 9999.99% | 0.01% |
| March 5, 2026 | ACM Research, Inc. | $ACMR | Pappis Charles C | Not found | S | Class A Common Stock | 5000 | $50.09 | 0.0000 | 68,414,313 | 100.00% | 0.01% |
| March 5, 2026 | ACM Research, Inc. | $ACMR | Pappis Charles C | Not found | M | Stock Option | 5000 | $0.00 | 5,000.0000 | 68,414,313 | 50.00% | 0.01% |
| Aug. 12, 2025 | ACM Research, Inc. | $ACMR | Pappis Charles C | Not found | A | Stock Option | 20000 | $0.00 | 20,000.0000 | 66,237,424 | 9999.99% | 0.03% |
| March 15, 2025 | ACM Research, Inc. | $ACMR | Pappis Charles C | Not found | A | Stock Option | 10000 | $0.00 | 10,000.0000 | 66,237,424 | 9999.99% | 0.02% |