Renaissance Technologies's ACMR Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 299,925 shares of ACM Research, Inc. (ACMR) worth $11.74 M, representing 0.02% of the portfolio. First purchased in 2019-Q2, this medium-term investment has been held for 12 quarters.
Based on 13F filings, Renaissance Technologies has maintained a strategic position in ACMR, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2025, adding 262,925 shares. Largest reduction occurred in Q1 2022, reducing 157,100 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's ACM Research (ACMR) Holding Value Over Time
Track share changes against reported price movement
Quarterly ACM Research (ACMR) Trades by Renaissance Technologies
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2019 | +151,200 | New Buy | 151,200 | $5.21 |
| Q3 2019 | -2,400 | Reduce 1.59% | 148,800 | $4.62 |
| Q4 2019 | -148,800 | Sold Out | 0 | $0.00 |
| Q4 2021 | +252,900 | New Buy | 252,900 | $28.42 |
| Q1 2022 | -157,100 | Reduce 62.12% | 95,800 | $20.69 |
| Q2 2022 | -95,800 | Sold Out | 0 | $0.00 |
| Q4 2022 | +111,600 | New Buy | 111,600 | $0.01 |
| Q1 2023 | -111,600 | Sold Out | 0 | $0.00 |
| Q1 2024 | +145,800 | New Buy | 145,800 | $29.14 |
| Q2 2024 | -145,800 | Sold Out | 0 | $0.00 |
| Q2 2025 | +37,000 | New Buy | 37,000 | $25.90 |
| Q3 2025 | +262,925 | Add 710.61% | 299,925 | $39.13 |
Renaissance Technologies's ACM Research Investment FAQs
Renaissance Technologies first purchased ACM Research, Inc. (ACMR) in Q2 2019, acquiring 151,200 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held ACM Research, Inc. (ACMR) for 12 quarters since Q2 2019.
Renaissance Technologies's largest addition to ACM Research, Inc. (ACMR) was in Q3 2025, adding 299,925 shares worth $11.74 M.
According to the latest 13F filing for Q3 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 299,925 shares of ACM Research, Inc. (ACMR), valued at approximately $11.74 M.
As of the Q3 2025 filing, ACM Research, Inc. (ACMR) represents approximately 0.02% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies's peak holding in ACM Research, Inc. (ACMR) was 299,925 shares, as reported at the end of Q3 2025.