Joel Greenblatt acquired 14.3 Thousand Alarm.com Holdings shares worth $934 Thousand. That's 0.02% of their equity portfolio (791st largest holding). The first Alarm.com Holdings trade was made in Q3 2016. Since then Joel Greenblatt bought shares nine more times and sold shares on eleven occasions. The stake costed the investor $772 Thousand, netting the investor a gain of 21% so far.