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 Wednesday 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.
Westwood One (WWON) Gores Radio Holdings LLC DIR,BO 769,231 $5,000,002
Texas Industries (TXI) NNS Holding BO 19,300 $603,860
Mediamind Technologies (MDMD) Insight Venture Partners IV LP BO 46,070 $529,805
Spectrum Brands Holdings (SPB) Harbinger Capital Master Fund I Ltd BO 16,000 $449,280
Ralcorp Holdings (RAH) Hunt Kevin J CEO,PR,DIR 7,265 $412,361
K Swiss (KSWS) Nichols Steven B CEO,PR,BO 30,000 $320,225
Information Services Group (III) Connors Michael P CB,CEO,BO 200,000 $300,840
Genomic Health (GHDX) Baker Brothers Life Sciences Capital DIR,BO 19,187 $287,552
Imergent (IIG) Mihaylo Steven G CEO,DIR,BO 40,000 $143,128
Opti (OPTI.OB) S Muoio Co LLC BO 51,124 $140,520
Source: www.InsiderInsights.com
Microsoft (MSFT) Gates William H III DIR 2,000,000 $49,016,000
Mercadolibre (MELI) Levy Anton J DIR 612,043 $42,351,140
Cinemark Holdings (CNK) Syufy Raymond W DIR 782,100 $12,159,032
NxStage Medical (NXTM) Orbimed Advisors LLC DIR,BO 500,200 $8,526,988
Isilon Systems (ISLN) Atlas Venture Fund V LP BO 445,000 $7,794,231
Watts Water Technologies (WTS) Horne Timothy P BO 100,000 $3,300,156
Qualcomm (QCOM) Jacobs Irwin M DIR 65,000 $2,502,050
Riverbed Technology (RVBD) Kennelly Jerry M CB,CEO 66,667 $2,304,077
Hasbro (HAS) Nagler Barry VP,SEC,LO 49,969 $2,199,970
NxStage Medical (NXTM) Chambon Philippe DIR 100,000 $1,701,000
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, EVP=Executive Vice President, 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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