Arthur Blank Sells $3.6M of Staples

NEW YORK (TheStreet) -- Which insiders are selling and buying chunks of stocks?

Below are lists of the top 10 open-market insider purchases and sales filed at the Securities and Exchange Commission Monday as ranked by dollar value. Company executives and directors are in the best position to assess the attractiveness of their firms' shares, and here is how many of them are voting their wallets! Please note, however, that these are factual lists, not buy and sell recommendations. Dollar value is only one metric to assess the importance of an insider transaction.

Legg Mason (LM) Peltz Nelson DIR,BO 822,830 $23,390,429 Boulder Growth & Inc Fund (BIF) Ernest Horejsi Trust No 1b BO 212,683 $1,207,216 Orexigen Therapeutics (OREX) Domain Partners VII L P BO 135,784 $1,023,296 Bitstream (BITS) Columbia Pacific Opp Fund L P BO 53,121 $375,024 Griffon (GFF) Kramer Ronald J CEO,PR,DIR 22,200 $258,244 Center Bancorp (CNBC) Seidman Lawrence B DIR,BO 17,583 $157,225 Chelsea Therapeutics (CHTP) Austin Josiah T BO 50,000 $110,123 Opti (OPTI) S Muoio Co LLC BO 23,000 $69,460 PMFG (PMFG) Mogged Charles G Jr VP 2,800 $39,866 BHIT (BHIT) Dennis Paul S DIR,VP, TR,BO 250,000 $37,500

Thor Industries (THO) Estate Of Wade F B Thompson BO 2,000,000 $58,000,000 Crown Castle Intl (CCI) Phoebe Snow Foundation O 145,000 $5,447,100 SXC Health Solutions (SXCI) Reddon Philip DIR 104,000 $5,393,765 Guess (GES) Marciano Maurice CB,DIR,BO 93,000 $4,034,250 Berkshire Hathaway (BRK.B) Bill Melinda Gates Foundation BO 1,110 $3,642,393 Staples (SPLS) Blank Arthur DIR 150,000 $3,639,315 Americredit (ACF) Fairholme Capital Mgt BO 187,800 $3,497,422 I2 Technologies (ITWO) Sidhu Sanjiv S BO 159,989 $2,991,794 Enernoc (ENOC) Foundation Capital Mgt BO,BO,BO 97,268 $2,765,883 Lululemon Athletica (LULU) Pitcher Rhoda M DIR 52,361 $1,427,524

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