David Tepper acquired 28.4 Thousand Exelon shares worth $1.07 Million. That's 0.02% of their equity portfolio (40th largest holding). David Tepper started to build up the position in Exelon in Q4 2005 and continued to invest until Q2 2008. Since then they sold 172 Thousand shares. The investor's estimated purchase price is $2.46 Million, resulting in a loss of 56%.