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Top Insider Trades 12/28/12: SCTY, NKE, LEI, WFT

|Includes:LEI, NKE, SolarCity Corp. (SCTY), WFT

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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 Friday, December 28, 2012 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
EMC BO VMware VMW B $6,399,401
Musk Elon DIR,BO Solarcity SCTY B $989,636
Meson Capital BO Lucas Energy LEI B $622,671
Mehta Dharmesh VP,CO Weatherford WFT B $423,600
Wright Phillip D DIR Piedmont Nat Gas PNY B $398,990
Rothblatt Martine A CEO,DIR United Therapeutics UTHR AB $218,355
Levin David A DIR Christopher & Banks CBK B $184,885
Barton Christopher VP,SEC Community Finl CFIS JB* $150,000
Frederickson Philip DIR Access Midstream ACMP B $148,005
Malvey Kenneth P VP,TR Tortoise Engy Ind Fd NDP B $129,764

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Schmidt Eric E CB,DIR Google GOOG AS $55,049,286
Lauren Family BO Ralph Lauren RL AS $14,707,239
Cook Scott D CB,DIR Intuit INTU S $12,645,576
Warren Wendy W BO Cascade CASC S $3,725,772
Parker Mark G PR,CEO,DIR Nike NKE AS $3,717,652
Eternity Two Trust O Carnival CCL S $3,378,411
Prescott GP BO Credit Acceptance CACC S $1,988,800
Linquist Roger D CEO,DIR MetroPCS Comms PCS AS $1,960,720
Van Den Broek R DIR Pharmacyclics PCYC S $1,756,364
Balk Lance C VP,GC Six Flags Ent SIX AS $1,234,698

Source: | Key to Insider Title and Trans Type Codes