Jeremy Grantham's ACMR Position Overview
Jeremy Grantham (via Grantham, Mayo, Van Otterloo & Co. LLC) currently holds 10,181 shares of ACM Research, Inc. (ACMR) worth $400,622, representing 0.00% of the portfolio. First purchased in 2025-Q3, this short-term holding has been held for 3 quarters.
Based on 13F filings, Jeremy Grantham has maintained this position in ACMR for several quarters, showing initial confidence in the investment. Largest addition occurred in Q4 2025, adding 1,686 shares. Largest reduction occurred in Q1 2026, reducing 10,106 shares.
Analysis based on 13F filings available since 2013 Q2
Jeremy Grantham's ACM Research (ACMR) Holding Value Over Time
Track share changes against reported price movement
Quarterly ACM Research (ACMR) Trades by Jeremy Grantham
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -10,106 | Reduce 49.82% | 10,181 | $39.35 |
| Q4 2025 | +1,686 | Add 9.06% | 20,287 | $39.45 |
| Q3 2025 | +18,601 | New Buy | 18,601 | $39.13 |
Jeremy Grantham's ACM Research Investment FAQs
Jeremy Grantham first purchased ACM Research, Inc. (ACMR) in Q3 2025, acquiring 18,601 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Jeremy Grantham has held ACM Research, Inc. (ACMR) for 3 quarters since Q3 2025.
Jeremy Grantham's largest addition to ACM Research, Inc. (ACMR) was in Q3 2025, adding 18,601 shares worth $727,857.
According to the latest 13F filing for Q1 2026, Jeremy Grantham's firm, Grantham, Mayo, Van Otterloo & Co. LLC, owns 10,181 shares of ACM Research, Inc. (ACMR), valued at approximately $400,622.
As of the Q1 2026 filing, ACM Research, Inc. (ACMR) represents approximately 0.00% of Jeremy Grantham's publicly disclosed stock portfolio, making it one of their key holdings.
Jeremy Grantham's peak holding in ACM Research, Inc. (ACMR) was 20,287 shares, as reported at the end of Q4 2025.