Joel Greenblatt acquired 25.9 Thousand Gartner shares worth $7.77 Million. That's 0.27% of their equity portfolio (83rd largest holding). The first Gartner trade was made in Q2 2014. Since then Joel Greenblatt bought shares eleven more times and sold shares on five occasions. The stake costed the investor $4.21 Million, netting the investor a gain of 84% so far.