Trade Summary

5 days ago, Pappis Charles C, serving as Dir at Acm Research, Inc. (ACMR), sold 5,000 shares at $52.00 per share, for a total transaction value of $260,000.00.

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

The trade was executed on Friday, April 17, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, April 21, 2026, 4 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.