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Top Insider Trades 9/12/13: S, GM, NRGM, HAFC

|Includes:CMLP, GM, HAFC, Sprint Corporation (S)

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In a victory for common sense, the trading behavior of company executives, directors, and large shareholders in the stocks of firms they're registered "insiders" at have been proven profitable to monitor by 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 Thursday, September 12, 2013 as ranked by dollar value.

Please note, however, that these are factual lists (with edits to remove some noise), 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.

We should also point out that we are presently in a slow filing time for insiders because many companies still have their trading windows closed to their executives until their June quarter earnings are released.

But 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 blog posts 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 email with any questions on our proprietary insider data, and how it is best analyzed.

Insider Purchases
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Softbank BO Sprint S AB $42,188,388
Karfunkel George DIR Eastman Kodak KODK JB* $38,512,984
Welch Jamie DIR Energy Transfer LP ETP B $1,036,400
Marubeni DIR,BO Aircastle AYR B $523,797
Gautreaux Wm C PR Inergy Midstream NRGM JB* $450,000
Kum Chong Guk PR,CEO,DIR Hanmi Financial HAFC B $323,400
Sherman John J DIR,BO Inergy Midstream NRGM B $218,064
Gibbons Judy DIR Michael Kors KORS B $158,693
Kirk A Russell DIR Armada Hoffler Pr AHH B $109,402
Ao Partners I DIR,BO Air T AIRT B $94,565

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Canada Gen Inv BO General Motors GM JS* $1,099,500,032
Summit Partners PT,BO Fleetcor Tech FLT JS* $209,720,000
Ryan J Stuart DIR Calpine CPN JS* $207,739,712
Friedman Brian P DIR Fiesta Restaurant FRGI JS* $24,244,784
Page Lawrence CEO,DIR,BO Google GOOG AS $18,587,122
Schulze Richard CB,BO Best Buy Co BBY S $17,286,780
Sandberg Sheryl COO,DIR Facebook FB AS $7,709,440
Cracchiolo James CB,CEO,DIR Ameriprise Finl AMP S $4,900,546
Lorberbaum Mark BO Mohawk Ind MHK S $2,573,196
Noll Richard A CB,CEO,DIR Hanesbrands HBI AS $1,877,877

Source: | Key to Insider Title and Trans Type Codes

Stocks: S, GM, CMLP, HAFC