Insiders Trading KO, ESGR, WPZ and GOOG

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, May 1, 2012 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.

Williams Partners (WPZ) Williams Companies BO 16,360,133 999,931,328 Coca Cola (KO) Diller Barry DIR 264,000 20,321,558 Stream Global Svs (SGS) Ayala BO 4,954,159 16,101,017 Vistaprint (VPRT) Prescott GP BO 250,000 10,007,400 Hess (HES) Hess John B CB,CEO,BO 48,000 2,496,082 Puma Biotechnology (PBYI) Adage Capital BO 122,195 1,673,535 CIT (CIT) Thain John A CB,CEO,DIR 30,000 1,128,275 CME (CME) Gerdes Larry G DIR 2,000 548,380 Coca Cola (KO) Greenberg Evan G DIR 6,507 499,400 Gannett Co (GCI) McFarland Duncan M DIR 20,000 281,716 Source: Insider Insights

Microsoft (MSFT) Gates William H III DIR 4,000,000 128,046,000 Enstar (ESGR) Flowers J Christopher BO 678,750 58,711,876 Delphi Automotive (DLPH) Paulson & Co BO 1,893,300 58,334,135 Google (GOOG) Brin Sergey F,DIR,BO 83,334 50,567,744 Google (GOOG) Schmidt Eric E CB,DIR 24,250 14,703,129 Google (GOOG) Drummond David C VP 13,799 8,313,633 Citrix Systems (CTXS) Templeton Mark B CEO,PR,DIR 35,000 2,994,389 Horton D R (DHI) Tomnitz Donald J PR,CEO,DIR 96,513 1,554,824 Align Technology (ALGN) Prescott Thomas M PR,CEO,DIR 40,404 1,287,724 3D Systems (DDD) Reichental Abraham N PR,CEO,DIR 40,000 1,181,200 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 InsiderInsights.com, 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 TheStreet.com 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.