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Top Insider Trades 5/31/13: TSLA, TSRA, BLMN, FSC

|Includes: BLMN, FSC, Tesla Motors (TSLA), XPER

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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, May 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
Musk Elon CEO,DIR,BO Tesla Motors TSLA JB* $100,000,056
Seams Christopher A DIR Tessera Tech TSRA B $422,228
Tannenbaum Leonard CEO,DIR Fifth Street Finance FSC B $259,138
Gavin John A DIR Tcw Str Inc Fd TSI B $247,804
Frost Phillip Md CEO,CB,BO Opko Health OPK B $157,715
Buenabenta Jules DIR Entravision Comms EVC B $120,750
Goodwin Daniel L DIR,BO Inland Real Estate IRC B $104,098
Schwartz Jonathan I DIR Silver Spring Nwk SSNI B $103,693
Haden Patrick C DIR Tcw Str Inc Fd TSI B $99,108
Catino Annette DIR Northfield Bancorp NFBK B $58,400

Source: | Key to Insider Title and Trans Type Codes

Insider Sales
Filer Name Insider Titles Company Name Ticker Trans
Dollar Value
Bain Capital BO Bloomin Brands BLMN JS* $310,134,880
Fink Laurence CB,CEO,DIR Blackrock BLK S $14,999,519
Wexford Capital O Epl Oil & Gas EPL S $6,575,836
Alon Israel Oil BO Alon Usa Energy ALJ S $6,333,700
Fuller Mortimer B Iii DIR Genesee & Wyoming GWR S $5,393,088
Ryder Robert P VP,CFO Constellation Br STZ S $4,031,250
Weglicki Timothy T DIR Amer Pub Ed APEI AS $2,861,790
Tredwell Daniel P DIR Trimas TRS S $2,223,774
Blake Patrick VP,PR McKesson MCK AS $2,146,454
Lacob Joseph DIR Align Technology ALGN S $1,807,843

Source: | Key to Insider Title and Trans Type Codes