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 Tuesday 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.
ADPT (ADPT) Steel Partners II LP BO 3,043,241 $8,620,899
Arbitron (ARB) Pamet Capital Management LP BO 266,000 $6,647,936
VMware (VMW) Emc Corp BO 36,200 $2,898,253
Saul Centers (BFS) Saul B Francis II CEO,DIR,
BO
21,555 $885,453
Taylor Capital Group (TAYC) Second Curve Capital LLC BO 70,000 $699,100
Zygo (ZIGO) Mak Capital One LLC BO 90,275 $678,954
Western Alliance Bancorp (WAL) Vecchione Kenneth PR,DIR,
COO
70,000 $437,500
Gabelli Healthcare WellnessRx Trust (GRX.A) Alpert Bruce N PR,TR 10,890 $272,250
Courier (CRRC) Conway James F III CB,CEO,
PR,DIR
20,000 $269,957
Abercrombie Fitch (ANF) Stapleton Craig R DIR 7,398 $262,703
Source: www.InsiderInsights.com
Microsoft (MSFT) Gates William H III DIR 2,000,000 $48,562,600
NxStage Medical (NXTM) Credit Suisse Ag BO 231,436 $3,676,987
Estee Lauder Companies (EL) Lauder Leonard A CB,BO 30,000 $1,718,694
Salesforce.Com (CRM) Benioff Marc CB,CEO,
BO
10,000 $1,115,881
Terra Nova Financial (TNFG) Par Investment Partner BO 1,110,000 $1,200,000
Salesforce.Com (CRM) Sclavos Stratton D DIR 6,700 $726,950
Nanometrics (NANO) Coates Norman V DIR,BO 50,000 $678,915
Breitburn Energy LP (BBEP) Washburn Halbert S CEO 30,000 $516,000
Salesforce.Com (CRM) Van Veenendaal Frank PR,SO 4,462 $501,786
Corrections Corp Of America (CXW) Ferguson John D CB,DIR 20,000 $416,828
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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