Ken Griffin acquired 442 Thousand Microstrategy shares worth $559 Million. That's 0.57% of their equity portfolio (15th largest holding). The investor owns 2.95% of the outstanding Microstrategy stock. The first Microstrategy trade was made in Q2 2013. Since then Ken Griffin bought shares 47 more times and sold shares on 46 occasions. The stake costed the investor $225 Million, netting the investor a gain of 149% so far.