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 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.
Integramed America (INMD) Kellogg Peter R BO 540,000 $4,049,795
Westport Innovations (WPRT) Douglas Kevin BO 98,400 $1,286,744
Louisiana Pacific (LPX) Dunham Archie W DIR 150,000 $1,075,140
Transwitch Corp (TXCC) Khatibzadeh Mohammad Ali CEO 226,300 $403,742
Vertex Pharmaceuticals (VRTX) Winger Dennis L DIR 6,500 $250,510
Rural Metro (RURL) Falck Danmark A S BO 25,701 $154,206
First Citizens Bancshares (FCNCA) Holding Frank B VCB,DIR,
BO
604 $105,313
Ipass (IPAS) Majteles Robert J DIR 92,522 $102,653
Timken (TKR) Ballbach John M DIR 3,900 $101,790
Gallery Of History (HIST) Axelrod Todd M CEO,PR,
DIR,BO
200,000 $100,000
Amazon.com (AMZN) Bezos Jeffrey P CB,CEO,
PR,BO
2,000,000 $234,861,750
Microsoft (MSFT) Gates William H III DIR 3,000,000 $84,760,200
Tuesday Morning (TUES) Madison Dearborn Partners II LP BO 6,263,126 $26,931,442
Core Laboratories NV (CLB) Demshur David M CEO,DIR 150,000 $18,503,121
Gentex (GNTX) Bauer Fred CB,CEO,
DIR
500,000 $9,563,758
Stryker (SYK) Stryker Ronda E DIR 150,000 $7,894,512
Netlogic Microsystems (NETL) Godinho Norman DIR,BO 125,000 $6,565,814
Riverbed Technology (RVBD) Kennelly Jerry M CB,CEO,
DIR
166,667 $4,430,802
Americredit (ACF) Morris Clifton H Jr CB 196,700 $4,376,575
Core Laboratories NV (CLB) Bergmark Richard L CFO,DIR,
VP,TR
35,000 $4,312,974

Key to Titles: A=Assistant, AI=Affiliated Investor, AO=Accounting Officer, BD=Business Development, BO=Beneficial Owner, CAO=Chief Accounting Officer, CB=Chairman, CCO=Chief Compliance Officer, CEO=Chief Executive Officer, CFO=Chief Financial Officer, CIO=Chief Information Officer, CO=Compliance Officer, COO=Chief Operating Officer, CT=Controller, CTO=Chief Technology Officer, DIR=Director, F=Founder, FO=Financial Officer, GC=General Counsel, HR=Human Resources, IO=Information Officer, IR=Investor Relations, LO=Legal Officer, MD=Managing Director, O=Officer, OO=Operating Officer, PR=President, PT=Partner, REL=Relative of an insider, SEC=Secretary, SH=Shareholder, SO=Sales Officer, TO=Technology Officer, TR=Treasurer, TT=Trustee, VCB=Vice Chairman, VP=Vice President, X=Ex Officer or other title displayed.
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.

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