Tracy Liu

Companies

• AXT INCBoard member Jun 24, 2026 to now¹
• ACM Research, Inc.Board member Nov 2, 2017 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• ARACM Research, Inc. ACMR110,772 shares³$6.2M at $56.38Mar 11, 2026
• AXAXT INC AXTI726 shares⁴$41.4K at $57.05Jun 24, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 11, 2026Sold 3,377 shares at $48.25 of ACM Research, Inc.³
• Mar 11, 2026Sold 11,623 shares at $47.81 of ACM Research, Inc.³
• Mar 11, 2026Exercised options 15,000 shares at $1.00 of ACM Research, Inc.³
• Mar 10, 2026Sold 12,784 shares at $48.19 of ACM Research, Inc.³
• Mar 10, 2026Sold 32,216 shares at $47.06 of ACM Research, Inc.³
• Mar 10, 2026Exercised options 45,000 shares at $1.00 of ACM Research, Inc.³
• Sep 17, 2025Sold 15,000 shares at $33.00 of ACM Research, Inc.⁵
• Sep 17, 2025Exercised options 15,000 shares at $1.00 of ACM Research, Inc.⁵
• Jul 15, 2025Sold 15,000 shares at $30.00 of ACM Research, Inc.⁶
• Jul 15, 2025Exercised options 15,000 shares at $1.00 of ACM Research, Inc.⁶
• Feb 28, 2024Sold 12,500 shares at $25.20 of ACM Research, Inc.⁷
• Feb 28, 2024Exercised options 12,500 shares at $5.60 of ACM Research, Inc.⁷
• Dec 26, 2023Sold 10,000 shares at $20.00 of ACM Research, Inc.⁸
• Dec 26, 2023Exercised options 10,000 shares at $5.60 of ACM Research, Inc.⁸
• Nov 20, 2023Sold 15,000 shares at $17.91 of ACM Research, Inc.⁹
• Nov 20, 2023Exercised options 15,000 shares at $7.36 of ACM Research, Inc.⁹