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:





TriState Capital Holdings Inc. (TSC, Financial): Chairman, President and CEO James F. Getz Bought 63,064 Shares


Chairman, President and CEO of TriState Capital Holdings Inc. (TSC) James F. Getz bought 63,064 shares during the past week at an average price of $13.06. Stephan Co. is engaged in the manufacture, sale and distribution of hair care and personal care products on both a wholesale and retail level. Tristate Capital Holdings Inc. has a market cap of $361.696 million; its shares were traded at around $13.06 with a P/E ratio of 27.78 and P/S ratio of 3.98


MEMC Electronic Materials Inc. (WFR, Financial): President and CEO Ahmad R. Chatila Bought 68,100 Shares



President and CEO of MEMC Electronic Materials Inc. (WFR) Ahmad R. Chatila bought 68,100 shares on 05/14/2013 at an average price of $6.53. MEMC Electronic Material was formed in 1984 as a Delaware corporation and completed its initial public stock offering in 1995. MEMC Electronic Materials Inc has a market cap of $1.43 billion; its shares were traded around $6.53 with a P/E ratio of 55.20 and P/S ratio of 0.61.


Arnold Schneider owns 1,648,240 shares as of 03/31/2013, a decrease of 36.1% of from the previous quarter. This position accounts for 0.66% of the $1.1 billion portfolio of Schneider Capital Management.


WFR recently reported its first quarter 2013 financial results. Operating cash used in the 2013 first quarter was $118.6 million and was primarily driven by changes in working capital related to project construction and timing of collections.


Senior Vice President and Chief HR Officer Matthew E. Herzberg bought 3,000 shares of WFR stock on 12/05/2012 at the average price of $2.99. Matthew E. Herzberg owns at least 3,000 shares after this.


CyrusOne Inc. (CONE, Financial): President and CEO Gary J. Wojtaszek Bought 15,000 Shares


President and CEO of CyrusOne Inc. (CONE) Gary J. Wojtaszek bought 15,000 shares during the past week at an average price of $22.23. CyrusOne Inc. has a market cap of $490.436 million; its shares were traded around $22.23 with and P/S ratio of 171.00. The dividend yield of Cyrusone Inc. stocks is 0.72%.


CyrusOne recently reported its first quarter 2013 earnings. Revenue for the first quarter of 2013 was $60.1 million, up from $52.1 million in the first quarter of 2012, an increase of 15%. Recurring rent churn1 was 0.4% for the first quarter of 2013, or 1.6% annualized, compared to 0.5% for the first quarter of 2012 and 4.6% annual recurring rent churn for the full year 2012.


Ron Baron bought 211,800 shares in the quarter that ended on 03/31/2013, which is 0.026% of the $18.31 billion portfolio of Baron Funds. Whitney Tilson owns 15,100 shares as of 03/31/2013, which accounts for 0.3% of the $117 million portfolio of T2 Partners Management LP.


10% Owner Capital Management LLC Marcato bought 257,168 shares of CONE stock on 03/12/2013 at the average price of $21.45. Capital Management LLC Marcato owns at least 2,592,394 shares after this. The price of the stock has increased by 3.64% since.


LivePerson Inc. (LPSN, Financial): CEO Robert P. Locascio Bought 35,640 Shares



CEO of LivePerson Inc. (LPSN) Robert P. Locascio bought 35,640 shares on 05/16/2013 at an average price of $9.05. LivePerson Inc. was incorporated in the State of Delaware in 1995. Liveperson Inc. has a market cap of $481.936 million; its shares were traded around $9.05 with a P/E ratio of 172.41 and P/S ratio of 3.16.


LivePerson recently reported its first quarter 2013 financial results. Net loss for the first quarter of 2013 was $(0.2) million or $0.00 per share, as compared to net income of $3.1 million or $0.06 per share in the first quarter of 2012.


Ron Baron owns 1,317,077 shares as of 03/31/2013, which accounts for 0.098% of the $18.31 billion portfolio of Baron Funds.


Director William Wesemann bought 20,000 shares of LPSN stock on 05/16/2013 at the average price of 8.67. William Wesemann owns at least 60,000 shares after this. The price of the stock has increased by 4.38% since.


Ameresco Inc. (AMRC, Financial): President and CEO, 10% Owner George P. Sakellaris Bought 33,441 Shares


President and CEO, 10% Owner of Ameresco Inc. (AMRC) George P. Sakellaris bought 33,441 shares during the past week at an average price of $8.11. Ameresco Inc. was incorporated in Delaware in April 2000. Ameresco Inc. has a market cap of $369.424 million; its shares were traded around $8.11 with a P/E ratio of 25.38 and P/S ratio of 0.63.


Director Francis V. Wisneski Jr. bought 4,000 shares of AMRC stock on 05/17/2013 at the average price of $8.09. Francis V. Wisneski Jr. owns at least 28,235 shares after this. The price of the stock has increased by 0.25% since. Other insiders have also increased their positions in the company.