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Top Insider Trades 9/28/12: RSG, ESL, LNG, PRIM

|Includes: ESL, LNG, PRIM, Republic Services, Inc. (RSG)

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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 Friday, September 28, 2012 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
Cascade Investment BO Republic Services RSG B $46,352,305
Dai Ichi Life Insurance BO Janus Capital JNS B $25,646,520
Tcg Financial BO Hampton Roads Bank HMPR JB* $11,205,000
Capgen Capital Vi DIR,BO Hampton Roads Bank HMPR JB* $7,891,013
SPH Group BO Dgt DGTC B $2,057,813
Frost Phillip MD et al CEO,CB,BO Opko Health OPK B $261,140
Mason Marcia J GC,VP Esterline Technologies ESL B $140,425
Haack Paul V DIR Esterline Technologies ESL B $115,209
Natl EntCollectibles Assoc BO Hastings Ent HAST B,JB* $86,788
Becker Drapkin Management BO Pixelworks PXLW AB $66,470

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Snyder Charles J DIR Factset Research Systems FDS S $11,613,057
Brandolini Nuno DIR Cheniere Energy LNG S $7,749,594
Bell Leonard CEO,DIR Alexion Pharmaceuticals ALXN AS $7,542,011
Ta Assoc O MetroPCS Comms PCS AS $2,700,376
Rosenfeld Eric DIR Primoris Services PRIM S $2,052,276
Kloeppel David C PR,COO Gaylord Entertainment GET S $1,765,138
Webb Maynard G Jr DIR Salesforce Com CRM S $1,672,000
FMR BO Ironwood Pharmaceuticals IRWD S $1,251,704
Rebholtz Robert N Jr DIR MWI Veterinary Supply MWIV AS $1,168,629
Stryker Ronda E DIR Stryker SYK AS $1,000,476

Source: | Key to Insider Title and Trans Type Codes