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Top Insider Trades 5/8/13: SPB, PBI, GNRC, VOCS

|Includes: GNRC, PBI, Spectrum Brands, Inc. (SPB), VOCS

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In a victory for common sense, the trading behavior of company executives, directors, and large shareholders in the stocks of firms they're registered "insiders" at have been proven profitable to monitor by both academic studies and (more importantly) the experience of professional investors.

Below are lists of the top 10 mainly open-market insider purchases and sales filed at the Securities and Exchange Commission Wednesday, May 8, 2013 as ranked by dollar value.

Please note, however, that these are factual lists (with edits to remove some noise), not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction, and, frankly, often not even the most important metric that determines if an insider transaction is significant.

We should also point out that we are presently in a slow filing time for insiders because many companies still have their trading windows closed to their executives until their June quarter earnings are released.

But at, we find new investment ideas just about every day using these and more intricate insider screens to determine where we should focus our subsequent fundamental and technical analysis. And while stocks don't (or shouldn't) move up or down based on insider activity alone, insiders tend to be good indicators of when real stock-moving events like earnings surprises, corporate actions, and new products may be in the offing.

So use these regular blog posts as the initial research tools they are meant to be, and click the links in the tables to analyze a company's or insider's full insider history. Also feel free to email with any questions on our proprietary insider data, and how it is best analyzed.

Insider Purchases
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Harbinger BO Spectrum Brands SPB B $2,423,526
Lautenbach Marc PR,CEO Pitney Bowes PBI B $1,013,621
Kamin Peter H DIR Ambassadors EPAX B $853,986
Okumus OV Fd BO Vocus VOCS B,JB* $524,405
Calamos John P CB,CEO,BO Calamos Asset Mgt CLMS B $420,058
Fourteau Patrick DIR Insys Therapeutics INSY JB* $418,125
Meyer Edward H DIR Retail Opp Inv ROIC B $310,000
Leonard Joseph B DIR Walter Energy WLT B $296,091
Mario Ernest DIR Boston Scientific BSX B $232,800
Leonard Joseph B DIR Mueller Water MWA B $202,245

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Ccmp Capital BO Generac GNRC JS* $658,800,000
Spo Advisory BO Calpine CPN JS* $330,080,000
Northern Tier DIR,BO Northern Tier NTI JS* $302,745,600
Gehring Fred CEO,DIR PVH PVH AS $14,255,634
Wexford Capital BO Epl Oil & Gas EPL S $12,289,155
Carlson Capital DIR Epl Oil & Gas EPL S $10,035,594
Akradi Bahram CB,PR,CEO Life Time Fitness LTM S $9,294,016
Sandberg Sheryl COO,DIR Facebook FB AS $4,808,062
Von Rickenbach CB,CEO,DIR Parexel Intl PRXL S $4,424,720
Sondey Brian CB,PR,CEO Tal Intl TAL AS $3,625,322

Source: | Key to Insider Title and Trans Type Codes