Jim Simons' Renaissance Technologies LLC Investment Activity in Q4 2025

Renaissance Technologies LLC, the investment vehicle led by renowned investor Jim Simons, has released its portfolio holdings as of December 31, 2025. This filing provides insights into the firm's investment activities during the fourth quarter of 2025.

Analysis of the portfolio reveals several key movements. Tesla Inc (TSLA) saw a substantial increase in holdings, with share count rising by 220.88% and portfolio allocation growing to 0.95%. Similarly, Netflix Inc (NFLX) experienced a massive increase, with share count surging by 2544.63% and allocation reaching 1.04%. Micron Technology Inc (MU) also showed significant buying, with a 151.03% increase in shares and a 1.33% allocation.

On the other side, the firm reduced its stake in United Therapeutics Corp (UTHR). The position decreased by 12.15% in terms of shares, leading to a reduction in portfolio allocation to 1.44%. Kinross Gold Corp (KGC) also saw a notable reduction, with a 4.24% decrease in shares and allocation down to 1.09%. Verisign Inc (VRSN) experienced a 12.33% decrease in shares, lowering its allocation to 1.05%. Exelixis Inc (EXEL) saw a 10.0% reduction in shares, bringing its allocation down to 0.95%.

Additionally, Costco Wholesale Corp (COST) and Carvana Co (CVNA) showed significant buying activity, with share increases of 5220.96% and 38.92% respectively, boosting their allocations to 0.93% and 0.92%.

For a complete view of Jim Simons' investment strategy through Renaissance Technologies LLC, you can explore the investor profile here: Renaissance Technologies LLC Investor Profile. Detailed information on each stock holding, including PALANTIR TECHNOLOGIES INC (PLTR), UNITED THERAPEUTICS CORP DEL (UTHR), and others, is available at their respective pages: PLTR, UTHR, MU, and many more.