By Jonathan Moreland, founder of Insider Insights 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 mainly open-market insider purchases and sales filed at the Securities and Exchange Commission Friday, June 15, 2012 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.
Endeavour International (END) GMT Capital BO 650,000 4,875,000
Furiex Pharmaceuticals (FURX) Eshelman Fredric N DIR,BO 78,326 1,459,950
Dollar Thrifty Automotive (DTG) Pentwater Capital Mgt BO 7,800 622,946
ZBB Energy (ZBB) Koeppe Paul F DIR 1,063,157 404,000
Opko Health (OPK) Frost Phillip MD et al CEO,CB,BO 85,000 397,669
New Energy Systems (NEWN) Weihe Yu CEO,DIR 501,300 358,941
Pharmerica (PMC) Weishar Gregory S CEO,DIR 35,500 336,043
Resource Capital (RSO) Cohen Jonathan Z CEO,PR,DIR 12,765 299,978
Zeltiq Aesthetics (ZLTQ) Venrock Associates V BO 57,606 270,610
Molycorp (MCP) Dolan Brian T DIR 12,153 249,137
Source: Insider Insights
Hughes Telematics (HUTC) Byron Marc V DIR 621,293 7,362,260
Copart (CPRT) Johnson Willis J CB,DIR,BO 173,617 4,155,193
Illinois Tool Works (ITW) Smith David Byron Jr DIR 66,667 3,610,018
Scripps Networks (SNI) Lowe Kenneth W CB,PR,CEO 53,135 2,993,142
American Express (AXP) Buckminster Douglas E PR 44,557 2,438,137
Crown Castle International (CCI) Slowey Patrick VP 27,411 1,568,448
Public Storage (PSA) Harkham Uri P DIR 10,000 1,374,181
Digital Realty Trust (DLR) Peterson Scott E VP 13,800 1,007,676
Nextera Energy (NEE) Rodriguez Antonio VP 11,000 740,698
Costco Wholesale (COST) Evans Daniel J DIR 7,621 691,293
Source: Insider Insights

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.