According to GuruFocus Insider Data, these are the largest CEO buys during the past week. The overall trend of CEOs is illustrated in the chart below:

Biglari Holdings Inc (BH, Financial): Chairman and CEO, 10% Owner Sardar Biglari, Bought 17,854 Shares

Chairman and CEO, 10% Owner of Biglari Holdings Inc (BH) Sardar Biglari, bought 17,854 shares during the past week at an average price of $416.64. Biglari Holdings Inc., is an Indiana Corporation. It is a diversified holding company engaged in a number of diverse business activities. Biglari Holdings Inc has a market cap of $860.606 million; its shares were traded at around $416.64 with a P/E ratio of 24.60 and P/S ratio of 0.90. Biglari Holdings Inc had an annual average earnings growth of 9.20% over the past 10 years.

Mario Gabelli (Trades, Portfolio) owns 117,943 shares as of 09/30/2014, an increase of 18.42% from the previous quarter. This position accounts for 0.22% of the $18.59 billion portfolio of GAMCO Investors.

Director Kenneth R Cooper bought 14 shares of BH stock on 12/15/2014 at the average price of 360.34. Kenneth R Cooper owns at least 313 shares after this. The price of the stock has increased by 15.62% since.

Calamos Asset Management Inc (CLMS, Financial): Chairman, CEO & Global Co-CIO, 10% Owner John P Sr Calamos Bought 101,525 Shares

Chairman, CEO & Global Co-CIO, 10% Owner of Calamos Asset Management Inc (CLMS) John P Sr Calamos bought 101,525 shares during the past week at an average price of $12.92. Calamos Asset Management Inc is a Delaware corporation, incorporated on July 23, 2004. Calamos Asset Management Inc has a market cap of $265.256 million; its shares were traded at around $12.92 with a P/E ratio of 12.70 and P/S ratio of 0.97. The dividend yield of Calamos Asset Management Inc stocks is 4.26%.

CLMS recently reported its third quarter 2014 financial results. Non-GAAP diluted earnings per share was $0.23 for the third quarter compared with $0.22 in the previous quarter and $0.20 in the third quarter of 2013.1 Non-GAAP net income attributable to Calamos Asset Management, Inc. was $4.3 million for the quarter compared with $4.2 million last quarter and $4.1 million in the third quarter of 2013.

Mario Gabelli (Trades, Portfolio) owns 161,000 shares as of 09/30/2014, which accounts for 0.0098% of the $18.59 billion portfolio of GAMCO Investors.

SVP & CFO Nimish S Bhatt bought 416 shares of CLMS stock on 11/21/2014 at the average price of 13.8. Nimish S Bhatt owns at least 99,689 shares after this. The price of the stock has decreased by 6.38% since.

Opko Health Inc (OPK, Financial): CEO & Chairman, 10% Owner Phillip Md Et Al Frost Bought 100,500 Shares

CEO & Chairman, 10% Owner of Opko Health Inc (OPK) Phillip Md Et Al Frost bought 100,500 shares during the past week at an average price of $10.02. Opko Health Inc was originally incorporated in Delaware in October 1991 under the name Cytoclonal Pharmaceutics, Inc. Opko Health Inc has a market cap of $4.35 billion; its shares were traded at around $10.02 with and P/S ratio of 48.35. Opko Health Inc had an annual average earnings growth of 4.40% over the past 10 years.

George Soros (Trades, Portfolio) owns 235,600 shares as of 09/30/2014, which accounts for 0.015% of the $13.4 billion portfolio of Soros Fund Management LLC. Mario Gabelli (Trades, Portfolio) owns 11,000 shares as of 09/30/2014, a decrease of 26.67% of from the previous quarter. This position accounts for 0.0005% of the $18.59 billion portfolio of GAMCO Investors.

Genuine Parts Co (GPC, Financial): CEO Thomas Gallagher Bought 5,000 Shares

CEO of Genuine Parts Co (GPC) Thomas Gallagher bought 5,000 shares on 01/15/2015 at an average price of $97.10. Genuine Parts Co is a Georgia corporation incorporated on May 7, 1928, is a service organization engaged in the distribution of automotive replacement parts, industrial replacement parts, office products and electrical/electronic materials through its four operating segments. Genuine Parts Co has a market cap of $14.84 billion; its shares were traded at around $97.10 with a P/E ratio of 21.70 and P/S ratio of 1.00. The dividend yield of Genuine Parts Co stocks is 2.37%. Genuine Parts Co had an annual average earnings growth of 6.60% over the past 10 years. GuruFocus rated Genuine Parts Co the business predictability rank of 5-star.

Genuine Parts recently announced that record sales totaling $4.0 billion were up 8% compared to the third quarter of 2013. Net income for the quarter was $190.5 million compared to $173.7 million recorded in the same period of the previous year. Earnings per share on a diluted basis were $1.24 compared to $1.12 for the third quarter last year, up 11%.

Joel Greenblatt (Trades, Portfolio) owns 175,454 shares as of 09/30/2014, an increase of 6518.41% from the previous quarter. This position accounts for 0.15% of the $10.05 billion portfolio of Gotham Asset Management, LLC. Mario Gabelli (Trades, Portfolio) owns 2,701,659 shares as of 09/30/2014, which accounts for 1.3% of the $18.59 billion portfolio of GAMCO Investors.

Catalyst Pharmaceutical Partners Inc (CPRX, Financial): President and CEO Patrick J Mcenany Bought 50,000 Shares

President and CEO of Catalyst Pharmaceutical Partners Inc (CPRX) Patrick J Mcenany bought 50,000 shares on 01/08/2015 at an average price of $2.94. Catalyst Pharmaceutical Partners, Inc. was incorporated in Delaware in July 2006. Catalyst Pharmaceutical Partners Inc has a market cap of $203.210 million; its shares were traded at around $2.94 .

Exec. V.P., Corp. Development David D Muth sold 0 shares of CPRX stock on 08/28/2014 at the average price of 0. David D Muth owns at least 10,000 shares after this.