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 Friday, Oct. 11, 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.
Stonegate (SGM) Levinson S DIR 450,000 7,200,000
Puma (PBYI) Adage Capital Gp BO 140,900 5,697,561
Yum (YUM) Walter R DIR 20,000 1,321,716
Aircastle (AYR) Marubeni DIR,BO 30,000 529,644
Intl Speedway (ISCA) Ford E II DIR 10,000 306,993
Prudential Banc (PBIP) Vento T CB,PR,CEO 8,576 85,760
Opko (OPK) Frost P CEO,CB,BO 8,500 84,416
Impac (IMH) Pickup R BO 6,574 62,927
Prudential Banc (PBIP) Corrato J VP,CFO,DIR 3,311 33,110
Repros (RPRX) Anderson K CFO 1,000 23,770
Source: Insider Insights
Washington Post (WPO) Weymouth K DIR 3,992 2,437,702
Everyware (EVRY) Monomoy DIR,BO 181,360 1,981,358
Dolby Labs (DLB) Dolby D BO 35,000 1,232,036
Linkedin (LNKD) Sordello S VP,CFO 5,000 1,096,159
Stryker (SYK) Stryker R DIR 14,000 966,385
Aecom (ACM) Tishman Daniel R VCB,DIR 30,000 930,900
LinkedIn (LNKD) Rottenberg E VP,GC,SEC 4,000 893,329
Enanta (ENTA) Saints Cap Granite BO 36,207 785,978
Infoblox (BLOX) Goguen M DIR 17,564 720,214
Sun (SNHY) Koski C DIR,BO 20,000 716,283
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.