Joel Greenblatt acquired 12 Thousand Gartner shares worth $5.42 Million. That's 0.10% of their equity portfolio (260th largest holding). The first Gartner trade was made in Q2 2014. Since then Joel Greenblatt bought shares twelve more times and sold shares on eleven occasions. The stake costed the investor $2.48 Million, netting the investor a gain of 118% so far.