President and CEO of CoStar Group Inc. (CSGP) Andrew C Florance sells 27,745 shares of CSGP on 05/17/2012 at an average price of $70.08 a share.

Costar Grp Inc has a market cap of $1.76 billion; its shares were traded at around $70.78 with a P/E ratio of 73.6 and P/S ratio of 7. Costar Grp Inc had an annual average earning growth of 2.7% over the past 5 years.

CFO Recent Trades:

• CFO Brian J Radecki sold 60 shares of CSGP stock on 05/11/2012 at the average price of 70.5. Brian J Radecki owns at least 71,461 shares after this. The price of the stock has increased by 0.4% since.
• CFO Brian J Radecki sold 10,526 shares of CSGP stock on 05/07/2012 at the average price of 70.57. Brian J Radecki owns at least 71,461 shares after this. The price of the stock has increased by 0.3% since.

This is the insider trade history vs. stock price of CSGP. For the complete insider trading history of CSGP, click here.

Directors and Officers Recent Trades:

• Managing Director, CoStar UK Paul Marples sold 1,000 shares of CSGP stock on 05/11/2012 at the average price of 70.01. Paul Marples owns at least 29,632 shares after this. The price of the stock has increased by 1.1% since.
• Sr. VP-Sales, Customer Service John L Stanfill sold 19,852 shares of CSGP stock on 05/07/2012 at the average price of 70.31. John L Stanfill owns at least 80,693 shares after this. The price of the stock has increased by 0.67% since.
• Sr. Vice President, Research Jennifer Kitchen sold 17,633 shares of CSGP stock on 05/04/2012 at the average price of 70.42. Jennifer Kitchen owns at least 26,680 shares after this. The price of the stock has increased by 0.51% since.
• Managing Director, CoStar UK Paul Marples sold 1,000 shares of CSGP stock on 03/09/2012 at the average price of 62.69. Paul Marples owns at least 30,632 shares after this. The price of the stock has increased by 12.9% since.

For the complete insider trading history of CSGP, click here.

Why CEOs Are Buying Stocks Of Their Own Companies?

1. As legendary investor Peter Lynch said: "Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise."
2. TOP EXECUTIVES like CEOs and CFOs are savvy buyers of their companies' shares. One long-term study showed that they beat the market on average by six percentage points a year.
3. Another study found that the aggregated activities of insiders can serve as a good indicator to locate market bottoms. Insiders as a whole are smart investors of their own companies.

Click it to Check Out What the CEO Are Trading

More Gurufocus Links

Latest Guru Picks	Value Strategies
Warren Buffett Portfolio	Ben Graham Net-Net
Real Time Picks	Buffett-Munger Screener
Aggregated Portfolio	Undervalued Predictable
ETFs, Options	Low P/S Companies
Insider Trends	10-Year Financials
52-Week Lows	Interactive Charts
Model Portfolios	DCF Calculator
RSS Feed	Monthly Newsletters
The All-In-One Screener	Portfolio Tracking Tool