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Top Insider Trades 11/16/12: SIRI, HAIN, WETF, CHMT

|Includes: CHMT, HAIN, Sirius XM Holdings Inc. (SIRI), WETF

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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, November 16, 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
Liberty Media BO Sirius Xm Radio SIRI B $82,431,240
Cascade Investment BO Republic Services RSG B $31,237,120
Berkshire Hathaway BO Davita Healthcare DVA B $14,951,154
Srinivasan Mallika DIR AGCO AGCO AB $13,123,489
Tesoriere Steven V DIR Memc Electr Materials WFR B $7,355,025
Dueser F Scott CB,PR,CEO First Financial Bank FFIN JB* $4,696,748
Icahn Carl C BO Hain Celestial HAIN B $4,422,750
Cooper Alan S DIR Chemtura CHMT B $3,956,613
Icahn Carl C BO Take Two Interactive TTWO B $3,551,412
Gross William H O Pimco Corp & Inc Opp Fd PTY B $3,213,171

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Rre Ventures Gp III BO Wisdomtree Inv WETF S $93,063,608
Steinhardt Michael H DIR,BO Wisdomtree Inv WETF S $59,556,392
Eternity Four Trust BO Carnival CCL AS $22,846,066
Carlson Capital BO Sunrise Senior Living SRZ S $20,458,424
Riccio Daniel J VP Apple AAPL S $10,713,452
Marr John S Jr PR,CEO,DIR Tyler Technologies TYL S $5,529,206
Klaassen Paul J & TM DIR Sunrise Senior Living SRZ S $5,015,045
Marriott Richard E BO Marriott International MAR S $5,003,460
Gull Holdings BO Usana Hlth Sciences USNA AS $4,685,607
Reisman Lonny VP Aetna AET S $2,040,910

Source: | Key to Insider Title and Trans Type Codes