Renaissance Technologies (RenTech)'s ACLX Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 96,400 shares of Arcellx, Inc. (ACLX) worth $11.07 M, representing 0.02% of the portfolio. First purchased in 2022-Q2, this medium-term investment has been held for 14 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in ACLX, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2023, adding 328,167 shares. Largest reduction occurred in Q3 2023, reducing 290,867 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Arcellx (ACLX) Holding Value Over Time
Track share changes against reported price movement
Quarterly Arcellx (ACLX) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +96,400 | New Buy | 96,400 | $114.82 |
| Q2 2025 | -68,000 | Sold Out | 0 | $0.00 |
| Q1 2025 | +18,900 | Add 38.49% | 68,000 | $65.60 |
| Q4 2024 | +49,100 | New Buy | 49,100 | $76.69 |
| Q3 2024 | -27,072 | Sold Out | 0 | $0.00 |
| Q2 2024 | +27,072 | New Buy | 27,072 | $55.19 |
| Q1 2024 | -61,100 | Sold Out | 0 | $0.00 |
| Q4 2023 | +7,300 | Add 13.57% | 61,100 | $55.50 |
| Q3 2023 | -290,867 | Reduce 84.39% | 53,800 | $35.87 |
| Q2 2023 | +328,167 | Add 1988.89% | 344,667 | $0.03 |
| Q1 2023 | -34,300 | Reduce 67.52% | 16,500 | $0.03 |
| Q4 2022 | +50,800 | New Buy | 50,800 | $0.03 |
| Q3 2022 | -26,700 | Sold Out | 0 | $0.00 |
| Q2 2022 | +26,700 | New Buy | 26,700 | $18.09 |
Renaissance Technologies (RenTech)'s Arcellx Investment FAQs
Renaissance Technologies (RenTech) first purchased Arcellx, Inc. (ACLX) in Q2 2022, acquiring 26,700 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 (RenTech) has held Arcellx, Inc. (ACLX) for 14 quarters since Q2 2022.
Renaissance Technologies (RenTech)'s largest addition to Arcellx, Inc. (ACLX) was in Q2 2023, adding 344,667 shares worth $10,898.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 96,400 shares of Arcellx, Inc. (ACLX), valued at approximately $11.07 M.
As of the Q1 2026 filing, Arcellx, Inc. (ACLX) represents approximately 0.02% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Arcellx, Inc. (ACLX) was 344,667 shares, as reported at the end of Q2 2023.