Renaissance Technologies increases stake in Strategy by 20% with $40M purchase

Renaissance Technologies, the legendarily secretive quant fund founded by mathematician Jim Simons, just added another 422,881 shares of Strategy (formerly MicroStrategy) to its portfolio. The purchase, worth approximately $40.1 million at an average price near $144 per share, represents a roughly 20% increase in RenTec’s existing position. The move brings RenTec’s total Strategy holdings to approximately 2.55 million shares, valued at around $248 million. A pattern, not a one-off The Q2 2026 13F filing reveals that Renaissance had already boosted its Strategy position by 123% in Q1 2026, adding roughly 1.17 million shares to bring its holdings to 2.13 million at that time. The latest purchase builds on that momentum, suggesting the fund’s models continue to find something attractive in the stock’s risk-reward profile. To put the trajectory in context: RenTec went from a much smaller position to 2.55 million shares across just two quarters. The combined value of those holdings, approximately $248 million, makes this one of the more notable institutional bets on a company whose entire corporate identity revolves around accumulating Bitcoin. Why Strategy, not Bitcoin directly Strateg...