By Jonathan Moreland, founder of 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.
Westport Innovations (WPRT) Douglas Kevin BO 128,000 $1,734,570
United America Indemnity (INDM) Fox Saul A DIR,BO 34,913 $278,606
Ion Geophysical (IO) Lapeyre James M Jr DIR 50,000 $217,890
DWS Global Commodities Stock Fund (GCS) Benchmark Plus Management LLC BO 25,300 $196,977
Bitstream (BITS) Columbia Pacific Opportunity Fund L P BO 15,500 $122,440
Nationwide Health Properties (NHP) Gilchrist Richard I DIR 3,000 $97,140
Ditech Networks (DITC) Miller Lloyd I III BO 67,543 $85,104
Dole Food (DOLE) Weinberg Dennis M DIR 4,222 $49,735
Insweb (INSW) Osmium Partners LLC BO 8,500 $36,600
First Citizens Bancshares (FCNCA) Holding Frank B VCB,DIR,BO 193 $34,161
First Solar (FSLR) Ahearn Michael J CB,DIR 1,300,000 $141,767,086
Knight Transportation (KNX) Knight Gary J VCB,DIR 500,000 $9,775,550
Intuit (INTU) Cook Scott D CB,DIR 300,000 $9,553,740
Retail Opportunity Investments (ROIC) Glenhill Advisors LLC BO 425,839 $4,377,864
Ingram Micro (IM) Qtip Marital Trust Under E Bronson Ingram Trust BO 241,029 $4,354,213
M T Bank (MTB) Pereira Jorge G VCB,DIR 50,000 $3,858,724
Lumber Liquidators (LL) Sullivan Thomas D CB,DIR,
150,000 $3,446,265
Berkshire Hathaway (BRK.B) Bill Melinda Gates Foundation BO 35,000 $2,791,310
Rackspace Hosting (RAX) Napier A Lanham CEO,PR,
87,500 $1,719,590
Boise (BZ) Boise Cascade Holdings BO 331,100 $1,556,847

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, 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 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.