Top Insider Trades: C CHTR NGL CHK

Tickers in this article: CHK CHTR C NGL

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, Nov. 28, 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 InsiderInsights.com, 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.

VMware ( VMW) EMC BO 74,010 6,645,398
AGCO ( AGCO) Srinivasan Mallika DIR 73,043 3,332,952
Providence ( PRSC) Coliseum DIR,BO 109,600 1,379,864
Ngl Energy ( NGL) Krimbill H Michael CEO,CFO,DIR 50,000 1,163,590
Citigroup ( C) Oneill Michael DIR 28,200 1,001,771
Chesapeake ( CHK) Martin R Brad DIR 40,000 689,600
Evolution ( EPM) Lovoi John BO 51,169 399,299
Ak Steel ( AKS) Wainscott James CB,PR,CEO 100,000 384,500
Inland ( IRC) Goodwin Daniel DIR,BO 32,200 255,256
First Opp. ( FOFI) Adams Nicholas FO 17,600 133,672
Source: Insider Insights
Charter ( CHTR) Apollo BO 3,100,000 212,504,992
Airgas ( ARG) McCausland Peter CB,DIR,BO 1,200,000 106,320,000
Primerica ( PRI) Warburg Pincus DIR,BO 3,600,000 99,036,000
Carnival ( CCL) Eternity Four BO 595,652 22,930,312
DSW ( DSW) Schottenstein Jay CB,DIR,BO 313,245 21,343,212
Microsoft ( MSFT) Marquardt David DIR 500,000 13,564,140
Boston ( BXP) Ritchey Raymond VP 117,075 11,919,353
B. Forman ( BFB) Frazier Laura BO 162,700 11,079,707
Mastercard ( MA) Mastercard Found. BO 18,926 9,049,660
SBA ( SBAC) Stoops Jeffrey CEO,PR,DIR 120,000 8,103,140
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.