Jim Simons' Top Holdings in His $62.9B Renaissance Technologies Portfolio as of December 2025
This analysis covers Jim Simons' top holdings as of December 2025, highlighting significant allocations like Palantir Technologies and United Therapeutics, with detailed share changes.

As of December 31, 2025, Jim Simons' portfolio at Renaissance Technologies LLC held a total value of $62.9 billion, with a diverse set of top holdings spanning various sectors. Among these, Palantir Technologies (PLTR) stands out with a portfolio allocation of 2.43%. This significant stake in PLTR reflects the firm's confidence in data infrastructure software company Palantir Technologies, Inc. (PLTR). You can explore Jim Simons' investment in PLTR directly at https://www.insiderset.com/investors/stocks/PLTR.
Another major holding is United Therapeutics Corp (UTHR), allocated 1.44% of the portfolio. This healthcare stock, symbol UTHR, represents the investor's position in the biotechnology sector. The stake saw a decrease of 12.15% in shares compared to the previous period, indicating a reduction in exposure. Details on Renaissance Technologies' UTHR position are available at https://www.insiderset.com/investors/stocks/UTHR.
Micron Technology Inc (MU) is another key holding with a 1.33% allocation. This technology stock, symbol MU, experienced a substantial increase of 151% in shares during the period, showcasing significant growth in this position. For more details on Renaissance Technologies' MU stake, visit https://www.insiderset.com/investors/stocks/MU.
Kinross Gold Corp (KGC) holds a 1.09% allocation in the portfolio. This basic materials stock, symbol KGC, saw a reduction of 4.24% in its share count. Further information on Renaissance Technologies' KGC position can be found at https://www.insiderset.com/investors/stocks/KGC.
Verisign Inc (VRSN) is allocated 1.05% of the portfolio. This technology stock, symbol VRSN, experienced a decline of 12.33% in its share count. You can explore Renaissance Technologies' VRSN investment here: https://www.insiderset.com/investors/stocks/VRSN.
Netflix Inc (NFLX) holds a 1.04% allocation. This communication services stock, symbol NFLX, saw an extraordinary increase of 2544.63% in its share count, making it one of the largest percentage increases. Details on Renaissance Technologies' NFLX stake are available at https://www.insiderset.com/investors/stocks/NFL0.
Tesla Inc (TSLA) is allocated 0.95% of the portfolio. This consumer cyclical stock, symbol TSLA, experienced a significant increase of 220.88% in its share count. For more details on Renaissance Technologies' TSLA position, visit https://www.insiderset.com/investors/stocks/TSLA.
Exelixis Inc (EXEL) holds a 0.95% allocation. This healthcare stock, symbol EXEL, saw a reduction of 10.00% in its share count. You can explore Renaissance Technologies' EXEL investment here: https://www.insiderset.com/investors/stocks/EXEL.
Costco Wholesale Corp (COST) is allocated 0.93% of the portfolio. This consumer defensive stock, symbol COST, experienced a massive increase of 5220.96% in its share count. Details on Renaissance Technologies' COST position are available at https://www.insiderset.com/investors/stocks/COST.
Carvana Co (CVNA) holds a 0.92% allocation. This consumer cyclical stock, symbol CVNA, saw an increase of 38.92% in its share count during the period. For more details on Renaissance Technologies' CVNA stake, visit https://www.insiderset.com/investors/stocks/CVNA.