Haiping Dun $ACMR SEC Form 4 Insider Trading

Haiping Dun has filed a total of 26 insider trades in $ACMR since 2021. Their most recent trade was a sale of 4,100 shares, made on Mar 09, 2026. Their largest trade was a sale of 37,500 shares, made on Jun 01, 2023. We estimate that they now own 0 shares of $ACMR, worth an estimated $19.3 million.

Insider Trading at $ACMR

There have been a total of 178 insider trades reported at $ACMR since 2021, with 0 shares purchased and 5.8 million shares sold. The most active insider traders in $ACMR stock have been David H Wang, Mark Mckechnie, and Lisa Feng. The most recent trade was a sale of 564 shares reported by Mark McKechnie (See Remarks), made on Mar 12, 2026.

$ACMR Executives and Stock Owners with Insider Trades

• David H Wang, See Remarks

• Mark Mckechnie, See Remarks

• Lisa Feng, See remarks

• Sotheara Cheav, See remarks

• Jian Wang, See remarks

• Fuping Chen, See remarks

• Mark Mckechnie, See remarks

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.