Valueact Buys $3.5M Worth Valeant Pharma

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.

For the most up-to-date insider data, and fundamentally researched investment ideas inspired by insiders, check out www.InsiderInsights.com.

Valeant Pharmaceuticals (VRX) Valueact Holdings LP BO 150,000 $3,545,500 Pier 1 Imports (PIR) Greek Investments Inc BO 280,725 $600,894 DWS Global Commodities Stock Fund (GCS) Benchmark Plus Management LLC BO 50,800 $350,419 Semgroup Energy LP (SGLP) MSD Capital L P BO 50,400 $289,800 Valuevision Media (VVTV) Stewart Keith R CEO,PR,DIR 95,600 $174,948 Valuevision Media (VVTV) Ronning Randy DIR 77,000 $140,140 Greenbrier Companies (GBX) Furman William A CEO,PR,DIR 21,680 $185,658 FNDS3000 (FDTC) Hancock John Michael CEO,DIR 262,857 $46,000 Boulder Growth & Inc Fund (BIF) Ernest Horejsi Trust No 1b BO 5,000 $23,400 Taylor Calvin B Bankshares (TYCB) Cathell Charlotte K DIR 150 $5,288

Stone Tan China Acquisition (STTA) HBK Investments L P BO 800,000 $6,280,000 Berkshire Hathaway (BRK) Bill & Melinda Gates Foundation Trust BO 1,360 $4,000,137 Aerovironment (AVAV) Conver Timothy E CB,CEO,PR, DIR,BO 14,000 $439,600 Photronics (PLAB) Macricostas Constantine S CEO,PR,DIR 80,800 $417,647 Chordiant Software (CHRD) Wadhwani Romesh BO 54,742 $218,968 Successfactors (SFSF) Dalgaard Lars CEO,PR,DIR 21,600 $213,252 Bronco Drilling (BRNC) Wexford Capital LP BO 46,967 $189,381 Dynex Capital (DX) Buck Jay X 21,547 $177,398 Unica (UNCA) Lee Yuchun CB,CEO,PR, DIR,BO 22,954 $139,227 Apollo Group (APOL) Sperling Peter V VCB,DIR 2,000 $134,190