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 Tuesday, January 25, 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.

Opko Health (OPK) Frost Phillip Md CEO,CB
1,158,000 $4,109,943
Hain Celestial (HAIN) Icahn Carl C BO 33,000 $887,135
Opko Health (OPK) Hsiao Jane Ph D VCB,CTO
200,000 $710,000
Kinder Morgan Mgt (KMR) Kinder Richard D CB,CEO
1,100 $71,275
City National (CYN) Tuttle Robert H DIR 1,000 $58,330
Clearbridge Energy MLP Fund (CEM) Colman Carol L DIR 2,000 $43,420
Renasant (RNST) Foy John DIR 850 $13,855
Cytomedix (GTF) Jorden David Emerson DIR,BO 17,000 $8,160
Remedent (REMI) Marxe Austin W BO 9,399 $6,109
Premierwest Bancorp (PRWT) Biddle Douglas N VP,CFO 10,000 $3,400
Mastercard (MA) Mastercard Foundation BO 21,220 $5,056,734
Acme Packet (APKT) Ory Robert G SEC,A
75,000 $4,140,970
Contango Oil & Gas (MCF) Peak Kenneth R CB,CEO
16,434 $951,827
Intermec (IN) Unitrin BO 80,028 $927,956
Informatica (INFA) Abbasi Sohaib CEO,PR
21,700 $923,891
Lawson Software (LWSN) Lawson H Richard DIR 100,000 $910,050
Electronics For Imaging (EFII) Gecht Guy CEO,DIR 50,000 $764,950
Renaissancere Holdings (RNR) Durhager Peter C VP 10,000 $650,000
Corrections Corp (CXW) Ferguson John D CB,DIR 20,000 $500,396
Treasure Island Royalty Trust (TISDZ) McKenzie Richard C Jr BO 257,416 $438,266

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.