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, December 15, 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.

VMware (VMW) Emc Corp BO 123,500 $10,961,371
Mannkind Corp (MNKD) Mann Alfred E CB,CEO
700,000 $5,922,000
Pimco Corp Inc Fund (PCN) Gross William H O 46,701 $682,997
Pimco High Inc Fund (PHK) Gross William H O 50,000 $604,515
Pacific Sunwear (PSUN) Greek Investments BO 100,000 $579,301
Pimco Inc Strat Fund (PFL) Gross William H O 50,000 $554,480
Buckeye Technologies (BKI) Cannon R Howard DIR 25,000 $509,500
Pimco Inc Strat Fund II (PFN) Gross William H O 50,000 $481,915
MRV Communications (MRVC) Gillman Charles M DIR 199,479 $347,185
Tucows (TCX) Ralls Rawleigh Hazen IV DIR,BO 468,611 $346,772
Google (GOOG) Page Lawrence PR,A
27,778 $16,620,845
Gt Solar Intl (SOLR) Oaktree Capital Mgt BO 1,000,000 $8,939,696
Commscope (CTV) Drendel Frank M CB,CEO
129,563 $4,054,026
MetroPCS Communications (PCS) TA Associates DIR 300,000 $3,718,150
Gentex (GNTX) Bauer Fred CB,CEO
100,000 $2,914,810
UDR (UDR) Toomey Thomas W CEO,DIR 100,000 $2,300,000
Thomas & Betts (TNB) Pileggi Dominic J CB,CEO
46,032 $2,247,674
Polo Ralph Lauren (RL) Farah Roger N PR,COO
16,646 $1,858,859
Exxon Mobil (XOM) Pryor Stephen D VP 24,466 $1,767,167
Kinetic Concepts (KCI) Leininger James R Md DIR,BO 41,183 $1,718,070

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.