By Jonathan Moreland, founder of InsiderInsights.com and author of Profit From Legal Insider Trading.

NEW YORK ( TheStreet) -- Which insiders are selling and buying chunks of stocks?

Below are lists of the top 10 open-market insider purchases and sales filed at the Securities and Exchange Commission Friday as ranked by dollar value. Company executives and directors are in the best position to assess the attractiveness of their firms' shares, and here is how many of them are voting their wallets! Please note, however, that these are factual lists, not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction.
VMware (VMW) EMC Corp BO 90,000 $6,228,273
Wafergen Bio Systems (WGBS) Shivji Alnoor CEO,DIR,BO 833,334 $1,000,001
Saul Centers (BFS) Saul B Francis II CEO,DIR,BO 8,600 $359,643
Primus Guaranty Ltd (PRS) Second Curve Capital LLC BO 75,000 $293,500
NL Industries (NL) Simmons Harold C CB,CEO,BO 42,366 $278,797
China Marine Food Group (CMFO) Liu Pengfei CEO,DIR,BO 55,000 $238,700
Wafergen Bio Systems (WGBS) Smith Nadine C DIR 166,667 $200,000
Wafergen Bio Systems (WGBS) Coradini Robert DIR 125,000 $150,000
Wafergen Bio Systems (WGBS) Hautamaki R Dean DIR 100,000 $120,000
China Marine Food Group (CMFO) Mccarthy Kent C BO 25,000 $108,985
Source: www.InsiderInsights.com
Hansen Natural (HANS) Sacks Rodney C & Schlosberg Hilton H CB,VCB 300,000 $12,628,306
Enernoc (ENOC) Brewster David B PR,DIR 50,000 $1,652,557
Dolby Laboratories (DLB) Dolby Ray DIR,BO 20,000 $1,294,120
Lodgenet Interactive (LNET) Black Horse Capital Mgt LLC BO 300,000 $925,140
Salesforce.Com (CRM) Benioff Marc CB,CEO,BO 10,000 $916,106
Molina Healthcare (MOH) Dentino William TT 25,000 $712,098
Morningstar (MORN) Mansueto Joseph D CB,CEO 12,400 $539,978
Raven Industries (RAVN) Moquist Ronald M Moquist Ronald M 13,736 $471,911
Boston Scientific (BSX) Abele John E DIR 75,000 $457,353
National Instruments (NATI) Kodosky Jeffrey L DIR 12,000 $369,560
Source: www.InsiderInsights.com

Key to Titles:A=Assistant, AI=Affiliated Investor, AO=Accounting Officer, BD=Business Development, BO=Beneficial Owner, CAO=Chief Accounting Officer, CB=Chairman, CCO=Chief Compliance Officer, CEO=Chief Executive Officer, CFO=Chief Financial Officer, CIO=Chief Information Officer, CO=Compliance Officer, COO=Chief Operating Officer, CT=Controller, CTO=Chief Technology Officer, DIR=Director, F=Founder, FO=Financial Officer, GC=General Counsel, HR=Human Resources, IO=Information Officer, IR=Investor Relations, LO=Legal Officer, MD=Managing Director, O=Officer, OO=Operating Officer, PR=President, PT=Partner, REL=Relative of an insider, SEC=Secretary, SH=Shareholder, SO=Sales Officer, TO=Technology Officer, TR=Treasurer, TT=Trustee, VCB=Vice Chairman, VP=Vice President, X=Ex Officer or other title displayed.

Jonathan Moreland is the founder of InsiderInsights.com, which produces a weekly newsletter and offers professional screening and alerting tools to analyze a proprietary, real-time insider data feed. He is also the principal of Insider Asset Management, a registered investment advisor in New York. Mr. Moreland has been analyzing insider data professionally for two decades and has been a contributor to TheStreet.com since 2001. A fundamental analyst with an MBA in finance, Mr. Moreland long ago identified insider data as an excellent first screen to determine where to focus his research efforts. He is quoted frequently in the media for his insider analysis and stock recommendations stemming from it. He is also author of Profit From Legal Insider Trading.

Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. While he cannot provide investment advice or recommendations, Moreland appreciates your feedback; click here to send him an email.

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