ACM RESEARCH INC-CLASS A (ACMR) Institutional Ownership and Insiders Activity

ACM RESEARCH INC-CLASS A (ACMR) is widely held by institutional investors, with 4 tracked firms reporting positions valued at approximately $61.96M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Renaissance Technologies LLC is the largest disclosed holder, reporting approximately $29.16M in ACMR holdings in its latest filing.

Recent insider activity includes 27 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.