Trade Summary

4 days ago, Dun Haiping, serving as Dir at ACM Research, Inc. (ACMR), sold 5,000 shares at $81.13 per share, for a total transaction value of $405,670.00.

This sale represents a 100.00% decrease in Dun Haiping's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, August 18, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, August 20, 2026 at 4:30 PM ET, 2 days after the trade was made.

ACM Research, Inc. operates in the TECHNOLOGY sector, specifically within the SEMICONDUCTOR EQUIPMENT & MATERIALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.