Welcome to edition 309 of Insider Weekends. Insider buying decreased last week with insiders buying $75.93 million of stock compared to $79 million in the week prior. Selling increased with insiders selling $2.17 billion of stock last week compared to $1.84 billion in the week prior.

Sell/Buy Ratio: The insider Sell/Buy ratio is calculated by dividing the total insider sales in a given week by total insider purchases that week. The adjusted ratio for last week went up to 28.53. In other words, insiders sold almost 29 times as much stock as they purchased. The Sell/Buy ratio this week compares unfavorably with the prior week, when the ratio stood at 23.26. We are calculating an adjusted ratio by removing transactions by funds and companies and trying as best as possible only to retain information about insiders and 10% owners who are not funds or companies.

Note: As mentioned in the first post in this series, certain industries have their preferred metrics such as same store sales for retailers, funds from operations (FFO) for REITs and revenue per available room (RevPAR) for hotels that provide a better basis for comparison than simple valuation metrics. However metrics like Price/Earnings, Price/Sales and Enterprise Value/EBITDA included below should provide a good starting point for analyzing the majority of stocks.

Notable Insider Buys:

1. Western Refining, Inc. (WNR): $23.23

Chairman of BOD, Executive Chair Paul L. Foster acquired 1,000,000 shares of this oil and gas pipelines company, paying $21.60 per share for a total amount of $21.6 million. 475,000 of these shares were purchased indirectly by Franklin Mountain Investments Limited Partnership.

You can view the list of recent insider transactions for Western Refining, Inc. here.

P/E: 6.61 Forward P/E: 10.37 Industry P/E: 14.04 P/S: 0.23 Price/Book: 1.71 EV/EBITDA: 3.37 Market Cap: $2.12B Avg. Daily Volume: 2,845,660 52 Week Range: $20.64 – $50.71

2. IDI, Inc (IDI): $5.1

Executive Chairman Michael Brauser acquired 419,530 shares of this data and analytical solutions provider, paying $5.25 per share for a total amount of $2.2 million. These shares were purchased indirectly by Birchtree Capital, LLC.

You can view the list of recent insider transactions for IDI, Inc here.

P/E: N/A Forward P/E: N/A Industry P/E: 18.55 P/S: 4.51 Price/Book: 1.14 EV/EBITDA: -6.03 Market Cap: $234.56M Avg. Daily Volume: 94,348 52 Week Range: $3.78 – $12.8