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Top Insider Trades 3/29/13: FES, NLSN, AGCO, AMRS

|Includes:AGCO, AMRS, Forbes Energy Services Ltd. (FES), NLSN

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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, March 29, 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
Srinivasan Mallika DIR AGCO AGCO AB $11,324,492
Al Thani Sheikh DIR Amyris AMRS JB* $4,999,999
Broadwood Part DIR,BO Biotime BTX B,JB* $762,000
Steel Excel BO Forbes Energy FES B $400,826
Grant Geoffrey T DIR Cadiz CDZI B $180,662
Borello Penny DIR Community Finl CFIS JB* $19,072
Murtlow Ann D DIR First Internet Banc INBK B $9,850
Craig Deann DIR Samson Oil & Gas SSN JB* $7,528
Muscari Carl DIR Collabrx CLRX B $5,005
Parker Charles DIR First South Banc FSBK B $3,290

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Jefferies Capital BO Fiesta Restaurant FRGI JS* $77,638,800
Sanchez Antonio CB,DIR,BO Sanchez Energy SN S $4,819,250
Coppola Arthur M CB,CEO,DIR Macerich MAC S $3,210,660
Smith Frederick G VP,DIR,BO Sinclair Broadcast SBGI S $2,128,230
Kash Arvin VCB Nielsen NLSN AS $1,679,286
Bridges C Roy PR Brown & Brown BRO S $1,589,000
Credit Suisse Ag BO Walker & Dunlop WD AS $1,270,887
Koski Christine L DIR,BO Sun Hydraulics SNHY S $1,130,861
Tishman Daniel R VCB,DIR Aecom Tech ACM AS $975,252
Kapoor Rohit VCB,CEO,DIR Exlservice EXLS AS $768,680

Source: | Key to Insider Title and Trans Type Codes