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Top Insider Trades 2/5/13: FB, NLNK, GD, NOW

|Includes: Facebook (FB), GD, NLNK, NOW

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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 Tuesday, February 5, 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
Stine Seed Farm BO Newlink Genetics NLNK JB* $10,032,000
Perceptive Advisors BO Aegerion Pharm AEGR B $1,389,400
Dhadphale Lalit CEO,DIR,BO Healthwarehouse HEWA JB* $500,000
Penn Arthur H CB,CEO,FO Pennantpark FR Cap PFLT B $407,504
Trice John R DIR Wilson Bank WBHC JB* $373,756
Drosdick John G DIR Triumph TGI B $346,048
Osborn William A DIR General Dynamics GD B $332,375
Twin Haven Sp Op Fd BO Hawaiian Telcom HCOM B $285,571
Damaj Bassam CEO,DIR,BO Innovus Pharm NORH JB* $118,993
Colligan Thomas J DIR ADT ADT B $94,709

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Gates William H III DIR Microsoft MSFT AS $153,272,352
Sternlicht Barry S DIR,BO Tri Pointe Homes TPH JS* $97,619,952
Breyer James DIR Facebook FB AS $74,077,536
Luddy Frederic B DIR,BO Servicenow NOW AS $12,427,014
Hoffman Reid DIR,BO Linkedin LNKD AS $10,254,100
Nishar Dipchand VP Linkedin LNKD AS $8,034,356
Azzurro Capital BO Travelzoo TZOO S $6,862,556
Sandberg Sheryl COO,DIR Facebook FB AS $5,105,156
Ebersman David A CFO Facebook FB AS $5,006,323
Weiner Jeff CEO,DIR Linkedin LNKD AS $4,552,639

Source: | Key to Insider Title and Trans Type Codes