Glenn Greenberg's position in Waters is currently worth $377 Million. That's 8.31% of their entire equity portfolio (4th largest holding). The investor owns 1.85% of the outstanding Waters stock. Glenn Greenberg started to build up the position in Waters in Q1 2009. Since then they sold 2.18 Million shares. The stake costed the investor $38.6 Million, netting the investor a gain of 878% so far.