§ 13F · FUND PROFILE
Renaissance Technologies.
Renaissance Technologies is a legendary quantitative hedge fund known for its highly secretive Medallion Fund and sophisticated mathematical models that analyze market patterns to generate returns. Founded by mathematician James Simons, the firm employs systematic, algorithm-driven trading strategies across thousands of positions, making it one of the most successful and enigmatic players in quantitative finance.
AUM · $75753.2T (13F)Positions · 3457Turnover · 100% · Q4Filed · Feb 12, 2026
CONCENTRATION
12%
Top 10 holdings
NEW BUYS
+478
+$4434.2T deployed
EXITS
0
No exits
SECTOR SHIFT
MEDIA → OTHER
-2pp · +4pp
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q4 2025
FILED FEB 12, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q4 |
|---|---|---|---|---|---|---|
| 1 | PLTR | PALANTIR TECHNOLOGIES INC | 8.80M | $1563.6T | 2.4% | +3% |
| 2 | UTHR | UNITED THERAPEUTICS CORP DEL | 1.91M | $930.3T | 1.4% | −12% |
| 3 | MU | MICRON TECHNOLOGY INC | 3.01M | $859.4T | 1.3% | +151% |
| 4 | KGC | KINROSS GOLD CORP | 24.98M | $703.3T | 1.1% | −4% |
| 5 | VRSN | VERISIGN INC | 2.78M | $675.2T | 1.0% | −12% |
| 6 | NFLX | NETFLIX INC | 7.18M | $673.0T | 1.0% | — |
| 7 | TSLA | TESLA INC | 1.36M | $612.6T | 1.0% | +221% |
| 8 | EXEL | EXELIXIS INC | 13.91M | $609.9T | 0.9% | −10% |
| 9 | COST | COSTCO WHSL CORP NEW | 693K | $597.6T | 0.9% | — |
| 10 | CVNA | CARVANA CO | 1.41M | $594.0T | 0.9% | +39% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other58.8% (+4pp)
Technology12.9% (−1pp)
Biotechnology7.1% (±0)
Retail7.0% (+1pp)
Media5.7% (−2pp)
Semiconductors4.7%
§ 03 · THE RENAISSANCE SIGNAL
AC read
Renaissance Technologies' latest 13F filing reveals the fund's characteristic hyperactive trading approach, with an extraordinary quarterly turnover rate of 100%, indicating they essentially replaced their entire portfolio during the quarter. Despite managing a massive $75.8 trillion in assets under management, Renaissance maintains extreme diversification across 3,457 positions, with a Herfindahl-Hirschman Index of just 0.004 demonstrating their systematic approach to risk distribution. The fund added an impressive 478 new positions this quarter while notably exiting zero holdings completely, suggesting their algorithms identified numerous new opportunities while maintaining exposure to existing positions through partial rebalancing.
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
1 FILINGS
Q4 2025
Busy quarter
+478 buys · −0 exits · 2698 changed
Q3 2025
Steady book
+0 buys · −0 exits · 0 changed
Q1 2025
Steady book
+0 buys · −0 exits · 0 changed