Glenn Greenberg's position in Waters is currently worth $319M. That's 6.94% of their entire equity portfolio (7th largest holding). The investor owns 1.77% of the outstanding Waters stock. Glenn Greenberg started to build up the position in Waters in Q1 2009. Since then they sold 2.18M shares. The stake costed the investor $38.6M, netting the investor a gain of 726% so far.