Insiders Trading WPRT PNK INVN SWI

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, July 31, 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.

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.
Westport Innovations (WPRT) Douglas Kevin BO 200,000 7,695,000
At & T (T) Ford Scott T DIR 55,000 2,058,650
Opko Health (OPK) Frost Phillip MD et al CEO,CB,BO 100,000 429,928
Quality Systems (QSII) Pflueger Russell DIR 10,000 160,600
Quality Systems (QSII) Bristol George H DIR 10,000 160,200
Tortoise Energy Independence Fund (NDP) Birzer H Kevin DIR 4,500 112,500
Pinnacle Entertainment (PNK) Shanks Virginia E VP,SO 10,000 102,950
Intelgenx Technologies (IGXT) Blumont Capital BO 170,000 99,220
Libbey (LBY) Stewart Terence P DIR 6,500 98,755
Old Republic International (ORI) Zucaro Aldo C CB,CEO,DIR 10,000 78,000
Source: Insider Insights
Microsoft (MSFT) Gates William H III DIR 5,000,000 147,869,504
Whole Foods Market (WFM) Green Equity Investors V DIR 1,339,680 123,781,768
Solarwinds (SWI) Yonce Donald BO 958,743 51,186,332
Westinghouse Air Brake (WAB) Neupaver Albert J PR,CEO,DIR 130,000 10,442,939
Quality Systems (QSII) Hussein Ahmed D DIR,BO 467,023 7,606,807
Mastercard (MA) Mastercard Foundation BO 10,980 4,761,968
Google (GOOG) Schmidt Eric E CB,DIR 7,088 4,490,456
Fleetcor Technologies (FLT) Stull Steven T DIR 100,000 3,688,960
Invensense (INVN) Artiman BO 268,000 3,370,904
Honeywell International (HON) Fradin Roger PR,CEO 51,100 3,017,966
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.