By Jonathan Moreland, founder of Insider Insights and author of Profit From Legal Insider Trading.

NEW YORK ( TheStreet) -- It is a victory for common sense. Tracking the trading behavior of company executives, directors and large shareholders in the stocks of firms they're registered in as "insiders" has proven to be profitable, according to both academic studies and (more importantly) the experience of professional investors.

Below are lists of the top 10 mainly open-market insider purchases and sales filed at the Securities and Exchange Commission Wednesday, July 18, 2012 as ranked by dollar value. Please note, however, that these are only factual lists, not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction, and, frankly, often not even the most important metric that determines if an insider transaction is significant.

We should also relay that July is a seasonally slow filing period for insider transactions, so the dollar values of the records below are likely smaller than they will be in August.

At, we find new investment ideas just about every day using more intricate insider screens to determine where we should focus our subsequent fundamental and technical analysis. And while stocks don't (or shouldn't) move up or down based on insider activity alone, insiders tend to be good indicators of when real stock-moving events like earnings surprises, corporate actions, and new products may be in the offing.

So use these regular Top Insider Trades columns as the initial research tools they are meant to be, and click the links in the tables to analyze a company's or insider's full insider history. Also feel free to contact us with any questions on our proprietary insider data, and how it is best analyzed.
Puma Biotechnology (PBYI) Adage Capital Gp BO 153,000 1,715,130
Opko Health (OPK) Frost Phillip MD et al CEO,CB,BO 85,000 388,956
Dynegy (DYN) Litespeed Management BO 640,665 330,515
Summer Infant (SUMR) Wynnefield Part Sm Cap Value BO 56,851 170,553
ITT (ITT) Savi Luca VP,PR,TO 8,500 149,781
Rogers (ROG) Hoechner Bruce D PR,CEO,DIR 3,299 119,905
Hudson Global (HSON) Sagard Capital BO 11,000 46,860
Vu1 (VUOC) Sam Advisors BO 18,627 43,225
Angiodynamics (ANGO) Devivo Joseph PR,CEO,DIR 2,000 23,340
Valhi (VHI) Simmons Harold C CB,DIR,BO 2,000 22,940
Source: Insider Insights
Family Dollar Stores (FDO) Garden Edward P DIR 403,000 27,634,204
Miller Energy Resources (MILL) Miller Deloy COO,DIR,BO 2,488,531 11,457,764
Priceline Com (PCLN) Boyd Jeffery H PR,CEO,DIR 2,000 1,277,037
Entegris (ENTG) GMT Capital BO 114,300 917,829
Avalonbay Communities (AVB) Blair Bryce CB,DIR 5,718 847,007
Iridium Communications (IRDM) Greenhill & Co O 65,000 612,295
NCR (NCR) Leav Peter VP 25,425 594,437
HCA (HCA) Bank Of America BO 19,841 589,020
Cheniere Energy (LNG) Abiteboul Jean VP 30,000 458,802
Deluxe (DLX) Scarfone Anthony C VP,GC,SEC 15,000 393,900
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.