ACM Research director Haiping Dun disposes of 5,000 common shares worth $406,862.80

• ACM Research director Haiping Dun exercised stock options for 5,000 Class A common shares at $5.6 on Aug. 18, 2026.
• Disposed of 5,000 Class A shares at weighted-average prices of $80.29, $81.31, $82.17 on the same day.
• Direct holdings fell to zero shares following the transactions.
• Reported indirect ownership of 855,090 Class A shares through family trusts.

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