Ken Griffin acquired 4.14 Million Occidental Petroleum shares worth $171 Million. That's 0.17% of their equity portfolio (139th largest holding). The first Occidental Petroleum trade was made in Q2 2013. Since then Ken Griffin bought shares 62 more times and sold shares on 49 occasions. The stake costed the investor $169 Million, netting the investor a gain of 1.7% so far.