Vivus CEO Sells $2.2M Worth

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 Friday 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.

Stone Tan China Acquisition (STTA) Spac Trust BO 55,216 $438,139 Georesources (GEOI) Joliat Jay Frederick DIR 20,000 $209,160 Citizens Financial Services (CZFS) Coolidge R Lowell DIR 5,157 $123,768 Viewcast Com (VCST) Brandenburg David DIR 500,000 $100,000 Rand Logistics (RLOG) Levy Laurence S CEO,DIR 30,000 $94,500 Bank Of Kentucky Financial (BKYF) Miracle John E DIR 3,000 $78,820 Rocky Brands (RCKY) Mcdonald James E CFO,VP, TR 11,000 $55,515 Applied Signal Technology (APSG) Minton Marie S DIR 1,500 $32,970 Liberty All Star Growth Fund (ASG) Parmentier William R Jr PR 10,000 $30,500 Ediets Com (DIET) Prides Capital Partners LLC DIR,BO 25,000 $27,154

Berkshire Hathaway (BRK) Bill & Melinda Gates Foundation BO 800 $2,603,037 Virtusa (VRTU) Armony Izhar DIR 267,000 $2,544,510 Vivus (VVUS) Wilson Leland F CEO,PR, DIR 200,000 $2,245,000 China Automotive Systems (CAAS) Wong Tse Yiu VP 190,545 $1,779,998 Protalix Biotherapeutics (PLX) Frost Phillip Md Et Al BO 178,074 $1,329,699 Bway Holding (BWY) Valueact Smallcap Mgt LP BO 60,000 $1,036,200 Transcept Pharmaceuticals (TSPT) Turner Daniel K III DIR,BO 65,604 $857,780 Kirby (KEX) Day C Sean DIR 19,500 $752,033 Medivation (MDVN) Hung David CEO,PR, DIR 25,000 $645,957 Medivation (MDVN) Machado Clarence Patrick CFO,VP 20,000 $517,166