President James Truchard Sells $7.7M National Instruments

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.
Facet Biotech (FACT) Bvf Partners L P Il BO 271,600 $4,261,930
Boulder Growth Inc Fund (BIF) Ernest Horejsi Trust No 1b BO 91,540 $548,033
Verizon Communications (VZ) Mcadam Lowell C CEO,PR,VP 15,000 $438,835
Rural Metro Corp (RURL) Falck Danmark A S BO 52,400 $288,200
Taylor Capital Group (TAYC) Second Curve Capital LLC BO 30,000 $279,000
Lodgenet Interactive (LNET) Black Horse Capital Mgt LLC BO 41,292 $229,785
Privatebancorp (PVTB) Hague Bruce R PR 10,000 $131,364
Clayton Williams Energy (CWEI) Williams Children S Partnership BO 2,970 $99,627
Ladenburg Thalmann Finl (LTS) Frost Phillip Md Et Al DIR,BO 100,000 $75,206
Valley National Bancorp (VLY) Edelstein Eric P DIR 4,000 $56,269
National Instruments (NATI) Truchard James J PR, DIR, BO 255,656 $7,658,476
Devry (DV) Keller Dennis J BO 100,000 $6,000,080
Berkshire Hathaway (BRK.B) Bill Melinda Gates Foundation BO 69,000 $5,027,802
Jefferies Group (JEF) Feller Lloyd H VP,GC,SEC 140,793 $3,808,394
IAC Interactivecorp (IACI) Liberty Media Corp BO 151,000 $3,068,320
Georesources (GEOI) Chandler Collis Paul III DIR,VP 150,000 $1,957,500
Devry (DV) Taylor Ronald L DIR 30,000 $1,801,299
Unitrin (UTR) Singleton Group LLC BO 64,600 $1,418,616
Prospect Medical (PZZ) Lee Samuel Sang Bum CEO,DIR,BO 206,550 $1,141,324
Medivation (MDVN) Bailey Gregory DIR 20,000 $667,000

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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