Several hedge funds have recently made changes to their positions in the company. KCG Holdings Inc. boosted its stake in shares of Cobalt International Energy by 314.6% in the first quarter. KCG Holdings Inc. now owns 228,718 shares of the energy producer’s stock worth $122,000 after buying an additional 173,550 shares in the last quarter. California Public Employees Retirement System boosted its stake in shares of Cobalt International Energy by 36.7% in the first quarter. California Public Employees Retirement System now owns 1,059,900 shares of the energy producer’s stock worth $565,000 after buying an additional 284,700 shares in the last quarter. Teachers Advisors LLC boosted its stake in shares of Cobalt International Energy by 4.9% in the first quarter. Teachers Advisors LLC now owns 474,568 shares of the energy producer’s stock worth $253,000 after buying an additional 22,322 shares in the last quarter. American International Group Inc. boosted its stake in shares of Cobalt International Energy by 7.0% in the first quarter. American International Group Inc. now owns 251,195 shares of the energy producer’s stock worth $134,000 after buying an additional 16,490 shares in the last quarter. Finally, SG Americas Securities LLC bought a new stake in shares of Cobalt International Energy during the first quarter worth $160,000. $CIE