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 Thursday 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 100,000 $2,415,750
Tollgrade Communications (TLGD) Ramius LLC BO 44,987 $235,856
Semgroup Energy LP (SGLP) Msd Capital L P BO 38,800 $228,547
Och-ziff Capital Management (OZM) Kenney Jerome P DIR 20,000 $197,938
Pier 1 Imports (PIR) Greek Investments Inc BO 84,108 $177,116
Angiodynamics (ANGO) Keltjens Jan CEO,PR 5,000 $56,250
Regions Financial (RF) Esteves Irene M O 15,000 $53,250
Angiodynamics (ANGO) Donnelly Howard W DIR 2,000 $23,000
Angiodynamics (ANGO) Laporte Steve DIR 2,000 $22,847
Tix (TIXC) Ashraf Iqbal BO 7,000 $17,300
Apollo Group (APOL) Sperling John G CB,DIR,
80,298 $5,558,729
Bed Bath & Beyond (BBBY) Temares Steven H CEO,
147,001 $4,958,775
Berkshire Hathaway (BRK) Bill & Melinda Gates Foundation Trust BO 1,310 $3,905,699
Lumber Liquidators (LL) TA Associates Inc DIR 160,000 $2,657,903
Liberty Media (LMDIA) Bennett Robert R DIR 93,050 $2,475,085
ICU Medical (ICUI) Lopez George A CB,CB,
50,000 $1,957,672
Synnex (SNX) Miau Matthew DIR 55,989 $1,643,948
Carnival (CCL) Frank Howard S VCB,DIR,
54,000 $1,476,173
Pride International (PDE) Eads Rodney W VP,COO 38,758 $1,027,087
Atheros Communications (ATHR) Barratt Craig H CEO,PR,
35,000 $858,872
Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. While he cannot provide investment advice or recommendations, Moreland appreciates your feedback; click here to send him an email.