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 Tuesday, July 5, 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.

Ivax Diagnostics (IVD) Erba Diagnostics Mannheim Gmbh DIR,BO 20,000,000 $15,000,000
Homeaway (AWAY) Marshall Christopher P PT,BO
177,556 $4,794,012
Kior (KIOR) Peterson Stuart L BO 115,828 $1,742,766
Futurefuel (FF) Lorenzini Paul G COO,DIR 49,047 $598,673
Evolution Petroleum (EPM) Mazzanti Daryl V VP,OO 11,631 $267,513
Donegal Group (DGICA) Shepard Gregory M BO 17,844 $266,101
Tearlab (TEAR) Davidson Tom Jr DIR 115,000 $209,300
Tearlab (TEAR) Vamvakas Elias CEO,DIR 104,604 $190,379
Rentrak (RENT) Rosenthal Brent David DIR 10,000 $179,901
Alphatec Holdings (ATEC) Cross Leslie H DIR 20,000 $65,400
Federated Investors (FII) Donahue John F CB,DIR 208,797 $4,999,331
MetroPCS Communications (PCS) TA Associates DIR 225,000 $3,916,635
Unit (UNT) George Kaiser Family BO 50,000 $3,059,035
BMC Software (BMC) Beauchamp Robert E CB,PR
54,217 $3,038,645
Apache (APA) Crum John A O 23,472 $2,885,183
National Instruments (NATI) Truchard James J PR,DIR
47,250 $1,459,148
Bridgepoint Education (BPI) Clark Andrew S CEO,DIR 49,496 $1,249,789
Nextera Energy (NEE) Olivera Armando J PR,CEO 20,000 $1,158,240
Big 5 Sporting Goods (BGFV) Stadium Relative Value Partners BO 142,101 $1,116,914
Apache (APA) Lannie P Anthony VP,GC 7,850 $963,997

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.