These are the largest CEO buys during the past week, according to GuruFocus' Insider Data. The overall trend of CEOs is illustrated in the chart below:
FS Investment Corp.: CEO Michael C. Forman bought 305,103 shares
FS Investment Corp. (FSIC, Financial) CEO Michael C. Forman bought 305,103 shares during the past week at an average price of $8.64. FS Investment was incorporated under the general corporation laws of the state of Maryland on Dec. 21, 2007, and commenced operations on Jan. 2, 2009. FS Investment  has a market cap of $2.1 billion; its shares were traded at around $8.64 with a P/E ratio of 19.69 and P/S ratio of 5.23. The dividend yield of FS Investment stocks is 10.31%.
CFO William Balke Goebel bought 2,500 shares of FSIC stock on Nov. 11, 2015 at the average price of $9.62. Goebel owns at least 5,000 shares now. The price of the stock has decreased by 10.19%.
Opko Health Inc.: CEO and Chairman, 10% owner Phillip Frost M.D. et al bought 105,000 shares
Opko Health Inc. (OPK, Financial)Â CEO and Chairman, 10% owner of Phillip Frost M.D. et al bought 105,000 shares during the past week at an average price of $8.82. Opko Health was originally incorporated in Delaware in October 1991 under the name Cytoclonal Pharmaceutics Inc. Opko Health has a market cap of $4.81 billion; its shares were traded at around $8.82 with and P/S ratio of 17.64. Opko Health had an annual average earnings growth of 9.00% over the past 10 years.
Opko Health recently reported its third quarter 2015 financial results. Consolidated revenues increased to $143.0 million from $19.8 million for the three months ended Sept. 30, 2015 compared to three months ended Sept. 30, 2014, and increased to $215.5 million from $65.6 million for the nine months ended Sept. 30, 2015 as compared to the 2014 period. Net income for the three months ended Sept. 30, 2015 was $128.2 million compared with net loss of $48.7 for the 2014 period and net losses for the nine months ended Sept. 30, 2015 decreased to $31.6 million compared and $118.7 million for the 2014 period.
George Soros (Trades, Portfolio) owned 235,600 shares as of Dec. 31, 2014, which accounts for 0.026% of the $5.84 billion portfolio of Soros Fund Management LLC. Mario Gabelli (Trades, Portfolio) owned 11,000 shares as of Dec. 31, 2014. The price of the stock has decreased by 12.59%.
Sr. Vice President, CFO Adam Logal bought 1,000 shares of Opko stock on Sept. 14, 2015 at the average price of $9.95. Adam Logal owns at least 45,789 shares now. The price of the stock has decreased by 11.36%.
Ambac Financial Group Inc.: CEO Nader Tavakoli Bought 61,496 Shares
Ambac Financial Group Inc. (AMBC, Financial) CEO Nader Tavakoli bought 61,496 shares on Jan. 8 at an average price of $12.61. Ambac Financial Group is a financial services holding company incorporated in the state of Delaware on April 29, 1991. Ambac Financial Group has a market cap of $567.709 million; its shares were traded at around $12.61 with a P/E ratio of 1.20 and P/S ratio of 1.24.
Director Jeffrey Scott Stein bought 4,500 shares of AMBC stock on Jan. 7 at the average price of $12.88. Stein owns at least 7,000 shares. The price of the stock has decreased by 2.1% since.
Calamos Asset Management Inc.: Chairman, CEO and Global Co-CIO, 10% wner John P. Calamos Sr. bought 64,864 shares
Calamos Asset Management Inc. (CLMS, Financial) Chairman, CEO and Global Co-CIO, 10% owner John P. Calamos Sr. bought 64,864 shares during the past week at an average price of $9.28. Calamos Asset Management is a Delaware corporation, incorporated on July 23, 2004. Calamos Asset Management has a market cap of $190.536 million; its shares were traded at around $9.28 with a P/E ratio of 23.30 and P/S ratio of 0.73. The dividend yield of Calamos Asset Management stocks is 6.47%.
Calamos recently reported its third quarter 2015 financial results. Non-GAAP diluted earnings per share was 18 cents for the third quarter compared with 21 cents in the previous quarter and 23 cents in the third quarter of 2014.1 Non-GAAP net income attributable to Calamos Asset Management was $3.3 million for the quarter compared with $3.9 million last quarter and $4.3 million in the third quarter of 2014.
Mario Gabelli (Trades, Portfolio) owned 161,000 shares as of Dec. 31, 2014, which accounts for 0.011% of the $15.22 billion portfolio of GAMCO Investors.
SVP and CFO Nimish S. Bhatt bought 763 shares of Calamos stock on Nov. 24, 2015 at the average price of $9.38. Bhatt owns at least 108,847 shares after this. The price of the stock has decreased by 1.07% since.
Praxair Inc.: Chairman, President and CEO Stephen F. Angel bought 5,000 shares
Chairman, President and CEO of Praxair Inc. (PX, Financial) Stephen F. Angel bought 5,000 shares on Jan. 7 at an average price of $97.85. Praxair was founded in 1907 and became an independent publicly traded company in 1992. Praxair has a market cap of $27.87 billion; its shares were traded at around $97.85 with a P/E ratio of 19.90 and P/S ratio of 2.55. The dividend yield of Praxair Inc stocks is 2.92%. Praxair had an annual average earnings growth of 9.60% over the past 10 years. GuruFocus rated Praxair the business predictability rank of 5 stars.
Joel Greenblatt (Trades, Portfolio) bought 24,595 shares in the quarter that ended  Dec. 31, 2014, which is 0.026% of the $10.25 billion portfolio of Gotham Asset Management, LLC. John Rogers (Trades, Portfolio) owned 46,921 shares as of Dec. 31, 2014, an increase of 28.99% from the previous quarter. This position accounts for 0.07% of the $8.03 billion portfolio of Ariel Investment LLC.