Joel Greenblatt acquired 156 Thousand Fortinet shares worth $16 Million. That's 0.13% of their equity portfolio (192nd largest holding). The first Fortinet trade was made in Q4 2013. Since then Joel Greenblatt bought shares seventeen more times and sold shares on 23 occasions. The stake costed the investor $3.37 Million, netting the investor a gain of 374% so far.