Insider Buys $3.2 Million of Calpine

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 on Tuesday 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!

Dollar value is only one metric to assess the importance of an insider transaction, however. For more value-added tables on a weekly basis, and fundamentally researched investment ideas inspired by insiders, subscribe to TheStreet.com's InsiderInsights newsletter. Whether you're a growth, value, income, momentum, or microcap investor, insider data can help you find great investment ideas.

Company Name (Ticker) Filer Name Title(s) Shares Bought Dollar Value Calpine (CPN) Harbinger Capital Master Fund I BO 480,700 $3,235,720 Delta Petroleum (DPTR) Tracinda Corp BO 465,000 $2,069,600 Monogram Biosciences (MGRM) Siebel Kenneth F BO 274,325 $594,705 Mosys (MOSY) Berg Carl E DIR 300,000 $576,000 Textron (TXT) Fish Lawrence K DIR 20,000 $255,198 Moneygram International (MGI) Blum Capital Partners LP BO 223,425 $223,425 Bronco Drilling (BRNC) Inmobiliaria Carso S A De C V BO 35,000 $205,088 Salesforce.Com (CRM) Young Shirley DIR 5,000 $155,199 National Coal (NCOC) Geologic Resource Partners LLC BO 122,774 $150,914 Duncan Energy LP (DEP) Casey Larry DIR 10,900 $149,875

Company Name (Ticker) Filer Name Title(s) Shares Sold Dollar Value Hunt J B Transport (JBHT) Hunt Johnelle D BO 200,000 $4,906,480 IACInteractivecorp (IACI) Liberty Media Corp BO 193,100 $2,980,384 Pep Boys (PBY) Pirate Capital LLC DIR 300,000 $1,118,237 Toll Brothers (TOL) Hillas Roger S DIR 24,000 $477,320 Monogram Biosciences (MGRM) Siebel Kenneth F BO 189,325 $410,835 National Retail Properties (NNN) Tessitore Christopher Paul O 11,708 $193,182 Pioneer Diversified High Inc Tr (HNW) West Stephen TT 17,000 $191,590 Allis Chalmers Energy (ALY) Hidayatallah Munawar H CB,CEO, DIR 37,000 $149,425 Reddy Ice Holdings (FRZ) Farallon Capital Mgt LLC BO,BO 44,145 $75,756 Geoglobal Resources (GGR) Peters Brent James DIR 52,969 $75,361

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.

Source: InsiderInsights.com

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