Is ICLR a good stock to own? Find out who bought ICON, who sold ICON (ICLR) stock, and who holds a large position in ICON.

• Artisan Partners Limited Partnership owns 8.22M shares worth $228.13M
• Neuberger Berman owns 5.28M shares worth $146.64M
• EARNEST PARTNERS owns 5.27M shares worth $128.53M
• Artisan Partners Holdings owns 4.83M shares worth $113.71M
• Wellington Management Company owns 3.16M shares worth $87.67M
• Daniel D. Thurber owns 3.11M shares worth $86.25M
• Westfield Capital Management Company owns 1.64M shares worth $45.55M
• ALLIANCEBERNSTEIN owns 1.62M shares worth $45.00M
• GOLDMAN SACHS owns 1.14M shares worth $31.69M
• Robeco Investment Management owns 1.14M shares worth $31.61M
• Wynnefield Capital owns 1.09M shares worth $18.40M
• Columbus Circle Investors owns 1.04M shares worth $28.76M
• KALMAR INVESTMENTS INC /DE/ owns 991135 shares worth $27.51M
• Royce & Associates owns 960901 shares worth $26.67M
• Wynnefield Capital Management owns 910000 shares worth $14.47M
• Perkins Investment Management owns 844400 shares worth $20.58M
• Luke P. La Valle, Jr. owns 759210 shares worth $21.08M
• Cortina Asset Management owns 756858 shares worth $21.01M
• Ameriprise Financial owns 686449 shares worth $15.47M
• Wells Fargo & Company owns 643960 shares worth $14.51M
• Aster Investment Management owns 642200 shares worth $15.65M
• OppenheimerFunds owns 638010 shares worth $17.71M
• Sentinel Asset Management owns 627130 shares worth $15.28M
• Adage Capital Partners GP owns 600000 shares worth $14.62M
• GRANAHAN INVESTMENT MANAGEMENT INC/MA owns 565350 shares worth $9.67M
• Perimeter Capital Partners owns 560928 shares worth $9.59M
• William Harris Investors owns 558638 shares worth $13.61M
• Intrepid Capital Management owns 558376 shares worth $11.85M

• FIL sold on Sept. 30, 2011
• Damian Sousa sold on June 30, 2011
• FMR sold on Dec. 31, 2010
• Millennium Management sold on Dec. 31, 2010
• FRED ALGER MANAGEMENT sold on Dec. 31, 2010
• Palisade Capital Management sold on Dec. 31, 2010
• Renaissance Technologies sold on Dec. 31, 2010

• Chubb Corporation (CB)
• Loews Corporation (L)
• ANSYS (ANSS)
• Goldman Sachs (GS)
• Progressive Corporation (PGR)
• Northern Trust Corporation (NTRS)
• Walt Disney Company (DIS)
• Apache Corporation (APA)
• Core Laboratories N.V. (CLB)
• Harsco Corporation (HSC)
• Mattel (MAT)
• Kroger (KR)
• Becton, Dickinson and (BDX)
• Yum! Brands (YUM)
• Apple (AAPL)
• Schlumberger (SLB)
• Target Corporation (TGT)
• EMC Corporation (EMC)
• Google (GOOG)
• Teledyne Technologies Incorporated (TDY)
• ARM Holdings (ARMH)