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 Monday, November 22, 2010 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.

Citigroup (C) Medina Mora Manuel CEO 542,198 $2,330,386
Two Harbors Investment (TWO) Johnson William W DIR 55,000 $532,950
LSI Corp (LSI) Reyes Gregorio DIR 50,000 $273,995
Wal Mart Stores (WMT) Breyer James DIR 5,000 $270,389
Intuitive Surgical (ISRG) Johnson Amal M DIR 1,000 $250,186
Cyanotech Corp (CYAN) Davis Michael A DIR,BO 84,917 $243,299
Inland Real Estate (IRC) Goodwin Daniel L DIR,BO 24,474 $205,359
THL Credit (TCRD) Southwell David P DIR 11,899 $152,771
MRV Communications (MRVC) Gillman Charles M DIR 109,530 $148,972
American Apparel (APP) Charney Dov CB,CEO
80,000 $108,192
Microsoft (MSFT) Gates William H III DIR 2,000,000 $51,734,400
Oracle (ORCL) Ellison Lawrence Joseph CEO,DIR
1,000,000 $27,997,800
Hansen Natural (HANS) Sacks Rodney C CB,CEO
176,932 $8,994,019
Expeditors International (EXPD) Gates R Jordan PR,COO
160,000 $8,254,240
241,551 $7,267,225
Alberto Culver (ACV) Marino Vincent James PR,CEO
186,481 $6,939,313
Union Pacific Corp (UNP) Hemmer J Michael VP,LO
75,753 $6,932,172
Eastman Chemical (EMN) Ferguson J Brian CB,DIR 83,085 $6,549,591
Alberto Culver (ACV) Nicoletti Ralph J VP,CFO 126,225 $4,696,761
Micros Systems (MCRS) Giannopoulos Athanasios L CB,PR
100,000 $4,379,549

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, 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.