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Top Insider Trades 3/19/13: SD, NATR, WAGE, TIF

|Includes:NATR, SandRidge Energy, Inc. (SD), TIF, WAGE

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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, March 19, 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
Qatar Inv Auth BO Tiffany TIF B $15,570,718
Mesdag Willem DIR,BO Natures Sunshine NATR B $931,884
Torbeck Theodore PR,CEO Cincinnati Bell CBB B $332,700
Frost Phillip MD CEO,CB,BO Opko Health OPK B $326,479
Shular Craig S CB,CEO,PR Graftech Intl GTI AB $292,800
Patel Mukesh DIR Aehr Test Sys AEHR JB* $250,000
Anderson Robert DIR Aehr Test Sys AEHR JB* $250,000
OConnell Michael BO RCM Tech RCMT B $230,692
Steel Excel BO Forbes Energy FES B $201,875
White Todd O Tri Continental TY B $174,168

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Vantagepoint BO Wageworks WAGE JS* $115,200,000
Apollo RE Adv BO Emeritus ESC JS* $90,499,440
Brown & Williamson BO Reynolds Amer RAI S $29,997,400
Ward Tom L CB,CEO,DIR Sandridge Energy SD S $20,838,116
Blackstone III BO Kosmos Energy KOS JS* $19,843,400
Evnin Luke DIR Pacira Pharm PCRX S $14,220,000
Moores John J DIR,BO Servicenow NOW S $5,195,205
Fowler John O Hff HF S $2,439,850
Drucker Charles PR,CEO,DIR Vantiv VNTV AS $2,244,001
Hart Martin T DIR Valueclick VCLK S $1,690,200

Source: | Key to Insider Title and Trans Type Codes