Jeremy Grantham's position in Exelon is currently worth $11.2 Million. That's 0.04% of their equity portfolio (232nd largest holding). The first Exelon trade was made in Q1 2013. Since then Jeremy Grantham bought shares twenty more times and sold shares on seventeen occasions. The stake costed the investor $10.5 Million, netting the investor a gain of 6.2% so far.