Dun Haiping Insider Trading Activity
Dun Haiping has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.
ACMR is the most-traded position with 6 trades. The largest single transaction was a sale of ACMR for $178K on Mar 9, 2026.
Performance Scorecard
Forward stock performance after each transaction by Dun Haiping. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -46.4% | 0% | 6 |
| 90 days | — | -86.3% | 0% | 2 |
| 120 days | — | -116.8% | 0% | 2 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersACMR · ACM Research, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 19, 2026 | ACMR | Sell | 1,333 | $63.84 | $85K | −26.7% | Director | |
May 19, 2026 | ACMR | Sell | 500 | $65.09 | $33K | −13.6% | Director | |
May 19, 2026 | ACMR | Sell | 1,309 | $67.21 | $88K | −41.3% | Director | |
May 19, 2026 | ACMR | Sell | 1,858 | $67.54 | $125K | −100.0% | Director | |
Mar 9, 2026 | ACMR | Sell | 4,100 | $43.37 | $178K | −82.0% | Director | |
Mar 9, 2026 | ACMR | Sell | 900 | $43.94 | $40K | −100.0% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ACMR | ACM Research, Inc. | 6 | $548K |
Other insiders at ACM Research, Inc.
6 other tracked filers at ACMR.