Dun Haiping Insider Trading Activity

Corporate InsiderDirector · CIK 1721581

6

Total trades

$548K

Total volume

May 19, 2026

Last activity

ACMR

ACM Research, Inc.

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.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
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

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ACMR · ACM Research, Inc.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEΔ OWNEDROLEFILING
May 19, 2026
ACMRSell1,333$63.84$85K−26.7%Director
May 19, 2026
ACMRSell500$65.09$33K−13.6%Director
May 19, 2026
ACMRSell1,309$67.21$88K−41.3%Director
May 19, 2026
ACMRSell1,858$67.54$125K−100.0%Director
Mar 9, 2026
ACMRSell4,100$43.37$178K−82.0%Director
Mar 9, 2026
ACMRSell900$43.94$40K−100.0%Director

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
ACMRACM Research, Inc.6$548K

Other insiders at ACM Research, Inc.

6 other tracked filers at ACMR.