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Jim Simons
RENAISSANCE TECHNOLOGIES LLC
Latest filing: 2026-03-31
Jim Simons runs RENAISSANCE TECHNOLOGIES LLC and currently holds 3,212 stock positions, which is more than the average of 236 among the investors we track. The portfolio is valued at approximately $63.93B. Their top holdings are UTHR, PLTR, AAPL, KGC, MU. The top five represent 6.8% of reported portfolio weight. Jim Simons ranks #790 out of 1000 investors tracked by Alpha Score. In the most recent quarter, Jim Simons initiated 4 new positions. They added to 49 existing positions. They trimmed 47 positions. Their current best-performing preview position is BARK with returns of +1,581.33%.
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3,212 stock holdings
| Holding | Weight | Avg Buy | Current | Return | Quarter Change |
|---|---|---|---|---|---|
 UTHR UNITED THERAPEUTICS CORP DEL | 1.66% | $129.79 | $519.45 | +300.22% | Trimmed -6.40% |
 PLTR PALANTIR TECHNOLOGIES INC | 1.60% | $17.95 | $124.50 | +593.59% | Trimmed -20.58% |
 AAPL APPLE INC | 1.22% | $253.79 | $340.27 | +34.08% | Added +100.00% |
 KGC KINROSS GOLD CORP | 1.22% | $5.38 | $22.97 | +326.86% | Added +2.29% |
 MU MICRON TECHNOLOGY INC | 1.14% | $238.37 | $786.59 | +229.98% | Trimmed -28.17% |
 VRSN VERISIGN INC | 1.09% | $122.51 | $286.95 | +134.23% | Added +1.40% |
 EXEL EXELIXIS INC | 0.92% | $22.38 | $55.79 | +149.28% | Trimmed -1.34% |
 FNV FRANCO NEV CORP | 0.86% | $100.07 | $209.30 | +109.15% | Trimmed -10.46% |
 SNDK SANDISK CORP | 0.79% | $128.06 | $1,026.03 | +701.21% | Trimmed -33.87% |
 NVDA NVIDIA CORPORATION | 0.69% | $163.89 | $192.53 | +17.48% | Added +189.98% |
Showing 1-10 of 3,212