This month, a number of our billionaires presented their 13F reports, unveiling key insights into their varying strategies and changes of course. We’ve put together a list of their most important trades.

13F filings

Daniel Loeb’s 13F filings

Loeb increased his position in Coca Cola Enterprises Inc (NYSE:CCE) by +220% after acquiring 2.2 million shares for $40.21. Another important move was the acquisition of FedEx Corporation (NYSE:FDX), as the investor picked up 2 million shares for $114.11 (5.70% of his fund).

Yahoo! Inc. (NASDAQ:YHOO) was reduced in Loeb’s fund with the sale of 46 million shares (-74.19%). And the investor sold out his position in News Corp (NASDAQ:NWSA), dumping four million shares (2.95% of his portfolio).

Leon Cooperman’s 13F filings

Cooperman added 1.9 million shares of Pennymac Mortgage Investment Trust (NYSE:PMT), a +940% increase. The investor paid an average price of $22.68 per share. Freeport-McMoran Copper & Gold Inc. (NYSE:FCX) was an increased stock in Cooperman’s fund as well. The billionaire bought 2.8 million shares, FCX now composing 1.42% of his holdings.

The investor reduced his position in Sprint Corporation (NYSE:S), selling 59.8 million shares (-62.89%).

Finally, Cooperman sold out his 980,104-share stake in Occidental Pete Corp Del (NYSE:OXY) (1.34% of his holdings).

Steven Mandel’s 13F filings

With the purchase of over two million shares, Mandel increased his position in DSW Inc (NYSE:DSW) by +237.45%. The stock now composes 1.34% of his fund.

The most important acquisition in Mandel’s portfolio was Baidu Inc (NASDAQ:BIDU). The billionaire picked up 5.2 million shares for $155.18 each.

On the other hand, he got rid of 5.3 million shares of H & R Block Inc (NYSE:HRB), a -69.82% drop. The stock now represents 0.27% of his fund. In addition, he dumped his 1.1 million Surgical Inc (NASDAQ:ISRG) shares (2.86% of his portfolio) and 2.6 million Ralph Lauren Corp (NYSE:RL) assets (2.2%).

David Einhorn‘s 13F filings

The stock with the biggest shift in the billionaire’s holdings was WPX Energy Inc (NYSE:WPX). Einhorn increased this position +77.3%, picking up more than two million shares for $19.26 each. The energy company now represents 1.60% of the billionaire’s portfolio. The investor acquired 1.1 million Tempur Sealy International (NYSE:TPX) shares, priced at $43.96. Today, the mattress company represents 0.9% of Einhorn’s fund.

The most notorious reduction came with the sale of 1.4 million shares of Aspen Insurance Holdings Limited (NYSE:AHL), a -36.9% decrease. The insurance company now represents 1.5% of Einhorn’s holdings.

Einhorn also dumped two stocks last quarter, the most significant being State Bank Financial Corp (NASDAQ:STBZ), which previously represented 0.5% of his portfolio.

David Tepper’s 13F filings

The billionaire picked up 290,360 shares of Ply Gem Holdings Inc (NYSE:PGEM), increasing his position by +194%. The stock now represents 0.09% of his fund. Another important movement was the acquisition of 1.7 million shares of Freeport-Mcmoran Copper & Gold Inc. (NYSE:FCX) for $33.07 per asset. Today, the stock represents 0.92% of the investor’s fund.

Tepper shrank his positions in a whopping 40 stocks during Q3, the most significant being Fusion-IO, Inc. (NYSE:FIO), of which the investor sold more than one million shares (-68.62%). He also sold out 1.4 million shares of Comcast Corporation (NASDAQ:CMCSA) (0.88% of his fund).

Tiger Global Management’s 13F filings

The 13F filing revealed a number of new purchases made by Tiger. Most important is Twenty-First Century Fox Inc (NASDAQ:FOX), which is now its second largest allocation. The fund bought 15.9 million shares at $1,010.94 per asset

Last quarter, Tiger Global increased its position in a number of companies. For example, its stake in TransDigm Group Incorporated (NYSE:TDG) increased +239.6% with the purchase of 1.2 million shares.

It also decreased its position in a few companies as well. The list includes Inc (NASDAQ:PCLN), which was reduced -90.4% when the fund sold 5.4 million shares.

The fund sold out its stakes in News Corp. (NASDAQ:NWSA). The stock represented 8.88% of the portfolio – a significant allocation.

Warren Buffett’s 13F filings

Over the last quarter Warren Buffett acquired 16.4 million shares of DaVita Healthcare Partners Inc (NYSE:DVA), increasing his position +110%. With this acquisition, the healthcare company now represents 2.03% of Buffett’s portfolio, purchased at an average price of $50.35 per share.

There is only one new stock in Buffett’s portfolio. Last quarter, the famous investor bought more than 40 million shares of Exxon Mobil Corporation (NYSE:XOM). Nowadays, the energy company represents 3.7% of the billionaire’s fund. This position cost Buffett more than $3 billion.

According to his last 13F filing, Buffett sold 1.1 million shares of healthcare company GlaxoSmithKline PLC (NYSE:GSK), decreasing this position -76.57%, with 17,350 shares now remaining in his portfolio (0.02% of his fund)

Carl Icahn’s 13F filings

The investor bought up 20.8 million additional shares of Nuance Communications Inc. (NASDAQ:NUAN) (he previously had 31.5 million). The allocation now represents 3.98% of his portfolio. Icahn paid an average price of $18.60 per NUAN share.

In addition, The investor purchased 3.8 million shares of Apple Inc. (NASDAQ:AAPL), representing 7.5% of his fund. Icahn paid an average price of $476.74 per share.

Icahn bid adieu to Dell Inc. (NASDAQ:DELL) in Q3. The tech firm went private just a few weeks ago, forcing the billionaire to sell off all of his 152 million shares (9.46% of his fund).