ACM Research, Inc. Chief Operating Officer Yue Ma filed an initial statement of beneficial ownership on November 6, 2026, disclosing holdings as of October 1, 2026, on NASDAQ:ACMR.

Key Highlights

  • Reporting person: Yue Ma, identified as Chief Operating Officer of ACM Research, Inc.
  • Triggering event date: October 1, 2026, the date of the event requiring the initial statement.
  • Direct holdings: 32,000 shares of Class A Common Stock held directly.
  • No derivative securities: Table II of the filing lists no derivative securities beneficially owned.
  • Filing signed: Mark McKechnie, Attorney-in-Fact for Yue Ma, signed the form on November 6, 2026.

Yue Ma's Initial Ownership Disclosure at ACM Research

ACM Research, Inc. (NASDAQ:ACMR) received an initial statement of beneficial ownership from Yue Ma, the company's Chief Operating Officer, filed on November 6, 2026. According to the filing, the event requiring the statement occurred on October 1, 2026. The form was filed by one reporting person and covers Yue Ma individually.

The filing discloses that Yue Ma directly owns 32,000 shares of ACM Research Class A Common Stock, with direct ownership indicated by the "D" designation in Table I. No indirect holdings were reported. Table II, covering derivative securities such as options, warrants, or convertible securities, contains no entries, indicating that no derivative securities are beneficially owned as of the reporting date.

The form was executed by Mark McKechnie as Attorney-in-Fact for Yue Ma, as authorized under Exhibit 24, a Power of Attorney included with the filing. A Form 3 is an initial statement required under Section 16(a) of the Securities Exchange Act of 1934 when an individual first becomes a reporting person, such as upon assuming an officer role.

What Was Disclosed

Yue Ma, Chief Operating Officer of ACM Research, Inc., filed a Form 3 disclosing direct beneficial ownership of 32,000 shares of Class A Common Stock as of October 1, 2026, with no derivative securities reported.