David Einhorn acquired 1.51 Million KBR shares worth $97.4 Million. That's 4.64% of their equity portfolio (6th largest holding). The investor owns 1.16% of the outstanding KBR stock. David Einhorn acquired their 1.51 Million shares in Q4 2006. So far they never sold any shares in the company. The stake costed the investor $39.6 Million, netting the investor a gain of 146% so far.