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Top Insider Trades 1/31/13: MCP, VMW, PCS, OSK

|Includes: iQIYI, Inc (IQ), OSK, TMUS, VMW

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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, January 31, 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
Molibdenos Y Metales BO Molycorp MCP JB* $90,000,000
EMC BO VMware VMW B $19,983,032
Three Arch Capital BO Liposcience LPDX JB* $1,935,000
Pennant Capital Mgt BO Universal Stainless USAP B $217,630
Simmons Harold C CB,DIR,BO Valhi VHI B $156,005
Erickson Ronald P CEO,DIR Visualant VSUL B $136,290
Gambill Mark M DIR Newmarket NEU B $128,035
Johnson Warren C VP Moog MOGA JB* $102,971
Pepper Jon DIR Visualant VSUL B $82,500
Brugger Thomas R VP,CFO Sun Bancorp SNBC B $68,619

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Schmidt Eric E CB,DIR Google GOOG AS $53,579,719
Addington Hills BO Ixia XXIA S $2,237,058
Linquist Roger D CEO,DIR MetroPCS Comms PCS AS $1,731,252
Mosling J Peter Jr DIR Oshkosh OSK S $1,582,000
Schulte Daniel C VP,GC Waddell & Reed Finl WDR S $1,063,839
Credit Suisse Ag BO Walker & Dunlop WD AS $990,781
Ricketts J Peter DIR Td Ameritrade AMTD S $893,640
Rencher Bradley VP,SO Adobe Systems ADBE S $801,326
Erdoes Mary E MD JPMorgan Chase JPM S $705,300
Sarver Robert G CB,CEO,DIR West Alliance Banc WAL S $660,857

Source: | Key to Insider Title and Trans Type Codes