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 Friday, January 07, 2011 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.

Lions Gate Entertainment (LGF) Rachesky Mark H Md DIR,BO 819,823 $5,328,850
Human Genome Sciences (HGSI) Watkins Thomas CEO,DIR 60,000 $1,449,600
Pacific Sunwear (PSUN) Greek Investments BO 100,000 $542,724
Tearlab (TEAR) Wright Brock DIR 39,100 $98,174
Trailer Bridge (TRBR) Schimmel Douglas E DIR 30,000 $87,183
Cogent Communications (CCOI) Montagner Marc DIR 5,500 $76,890
Kaman Corp (KAMN) Keating Neal J CB,PR
2,500 $68,774
Green Endeavors (GRNE) Surber Richard D CEO,DIR 12,866,000 $64,330
Cogent Communications (CCOI) Weingarten Tim DIR 4,370 $62,491
Amer First Tax Exempt Lp (ATAX) Yanney Michael B CB,PT 10,000 $52,815
Td Ameritrade (AMTD) Ricketts J Joe DIR,BO 1,106,604 $21,535,476
Mastercard (MA) Mastercard Foundation BO 21,220 $4,900,159
Lululemon Athletica (LULU) Wilson Dennis J DIR,BO 35,600 $2,438,244
IRobot Corp (IRBT) Greiner Helen DIR 90,500 $2,367,857
Oplink Communications (OPLK) Yin Shirley Yi VP,CFO 108,526 $2,170,520
Adobe Systems (ADBE) Burgess Robert K DIR 40,000 $1,279,560
Mellanox Technologies (MLNX) Waldman Eyal CEO,DIR 40,796 $1,121,954
Universal Display Corp (PANL) Abramson Steven V PR,CEO
30,000 $1,021,455
Accenture Plc (ACN) Rohleder Stephen J CEO 20,374 $982,251
IRobot (IRBT) Chwang Ronald DIR 33,800 $889,346

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.

If you liked this article you might like

The Dow, Google and Avis - 5 Things You Must Know Before the Market Opens Tuesday

The Retail Apocalypse Is About to Descend on Wall Street This Coming Week

Hasbro Ends Talks to Acquire Lionsgate