Ken Griffin acquired 27.4 Thousand Gartner shares worth $12.3 Million. That's 0.01% of their equity portfolio (1012th largest holding). The first Gartner trade was made in Q2 2013. Since then Ken Griffin bought shares 53 more times and sold shares on 40 occasions. The stake costed the investor $6.07 Million, netting the investor a gain of 103% so far.