Form 4: ACM Research Director Haiping Dun Exercises Stock Options, Reports Changes in Beneficial Ownership

Director Haiping Dun of ACM Research, Inc. exercised stock options and reported changes in beneficial ownership of Class A Common Stock on March 3, 2025.

Summary

• On March 3, 2025, Haiping Dun, a director of ACM Research, Inc., exercised stock options to purchase 25,001 shares of Class A Common Stock.
• The exercise was conducted on a cashless basis, with the company withholding 482 shares to cover the exercise price.
• The closing price of ACM Research's Class A Common Stock on February 28, 2025, was $25.94.
• After the transaction, Dun directly owns 779,609 shares of Class A Common Stock and indirectly owns 100,000 shares through the Dun Family GST Trust.

Sentiment

Score: 5

Explanation: The document is a standard regulatory filing detailing stock option exercises, which is neither particularly positive nor negative.

Industry Context

This filing is a routine disclosure related to insider transactions and is a standard practice for publicly traded companies. It provides transparency into the trading activities of company insiders.

Stakeholder Impact

• The transaction has a minor impact on shareholders as it involves the exercise of existing stock options and a small increase in the number of outstanding shares.

Key Dates