Carl Icahn held a total of 23 positions in a portfolio that was worth $5.63 billion as of Dec. 31, 2010.
Moves: Icahn added one new position in 4Q, purchasing 9,326 shares of Navistar International (NAV), while increasing six positions, including adding 4.2 million shares in Enzon (ENZN)and 2 million shares in Motorola before its split into Motorola Holdings (MMI) and Motorola Solutions (Icahn helped set the break in motion back in 2008). He decreased his positions in Masco Corporation (MAS) and Cadence Design Systems (CDNS).
Holdings in the technology sector make up around 39% of Icahn's portfolio, while the healthcare sector makes up another 37%. Smaller holdings include energy (9.6%), consumer goods (5.8%) and basic materials (1.1%).
Icahn's funds earned gross returns of 33.3% in 2010. On March 11, Icahn announced that he was closing his hedge fund to outside investors, stating that losses suffered by investors in his funds bothered him more than his own losses.
Here are Icahn's largest stock holdings as of Dec. 31, 2010:
• Motorola (MSI)
• Biogen Idec. Inc. (BIIB)
• Genzyme Corporation (GENZ)
• Chesapeake Energy (CHK)
• Lions Gate Entertainment (LGF)
• Amylin Pharmaceuticals (AMLN)
• Mentor Graphics (MENT)
• Hain Celestial Graphics (HAIN)
• Lawson Software Inc. (LWSN)
• Take-Two Interactive (TTWO)
**See the full SEC filing for Carl Icahn's portfolio.