Joel Greenblatt acquired 11.6 Thousand Watts Water Technologies shares worth $2.32 Million. That's 0.04% of their equity portfolio (539th largest holding). The first Watts Water Technologies trade was made in Q4 2010. Since then Joel Greenblatt bought shares 22 more times and sold shares on 24 occasions. The stake costed the investor $961 Thousand, netting the investor a gain of 141% so far.