Robert Bruce's position in CMS Energy is currently worth $19.9 Million. That's 8.63% of their entire equity portfolio (5th largest holding). Robert Bruce started to build up the position in CMS Energy in Q3 2014 and continued to invest until Q4 2015. Since then they sold 222 Thousand shares. The stake costed the investor $10.8 Million, netting the investor a gain of 83% so far.