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 Tuesday, January 29, 2013 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.

At, we find new investment ideas just about every day using these and 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.
Natl Bev (FIZZ) Bracken George R VP,FO 400,000 20,000,000
Anthera (ANTH) Orbimed Advisors DIR 1,762,000 1,142,481
Hawaiian (HCOM) Twin Haven BO 19,900 389,707
National (NHLD) Klein Mark CEO,DIR,
1,083,333 325,000
Synergy (SYRG) Seward George L DIR 50,000 293,000
AC Enh Gr & Inc Fd (LCM) Maitland Tracy V CB,CEO,
18,000 179,716
Penn Arthur H CB,CEO,
8,800 117,849
MVB (MVBF) Cincinnati Joseph P DIR 4,167 100,008
Gatx (GMT) Ritchie Robert J DIR 2,000 94,001
AC Convertible & Inc (AGC) Maitland Tracy V CB,CEO,
10,000 70,159
Source: Insider Insights
NVR (NVR) Schar Dwight C DIR 5,262 5,365,343
Corp Office (OFC) Hamlin Clay W III DIR 91,217 2,469,816
Schmidt Eric E CB,DIR 2,950 2,224,362
Costco (COST) Schutt Douglas W VP 20,000 2,059,258
Ixia (XXIA) Addington Hills BO 90,000 1,685,247
Kla Tencor (KLAC) Dentinger Mark P VP,CFO 22,763 1,284,971
Valassis (VCI) Schultz Alan F DIR 43,294 1,215,000
Builders (BLDR) Stadium Capital BO 186,461 1,185,063
Sempra Energy (SRE) Householder Joseph VP,CFO 14,851 1,113,083
Raymond (RJF) Helck Chester B VP,DIR 25,000 1,112,655
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.