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

• Renaissance Technologies owns 2.34M shares worth $19.86M
• Tinicum owns 1.33M shares worth $10.91M
• Tinicum Lantern II owns 1.33M shares worth $14.06M
• Clinton owns 1.25M shares worth $10.59M
• Vanguard owns 1.19M shares worth $10.09M
• Royce & Associates owns 1.16M shares worth $9.86M
• Inves owns 1.12M shares worth $9.54M
• CR Intrinsic Investors owns 825000 shares worth $10.67M
• Senator Investment owns 750000 shares worth $8.42M
• Coatue Management owns 728383 shares worth $5.95M
• BOSTON TRUST & INVESTMENT MANAGEMENT owns 598338 shares worth $7.74M
• STATE STREET CORPORATION owns 554608 shares worth $4.70M
• PEAK6 Investments owns 535800 shares worth $5.95M
• Weintraub Capital Management owns 535000 shares worth $6.92M
• GOLDMAN SACHS owns 359079 shares worth $3.78M
• Visium Asset Management owns 356000 shares worth $4.60M
• Emerald Advisers owns 334288 shares worth $4.32M
• OHIO PERS owns 314300 shares worth $3.53M
• Dialectic Capital Management owns 303972 shares worth $3.93M
• Robeco Investment Management owns 303870 shares worth $2.58M
• Disciplined Growth Investors owns 286377 shares worth $2.43M
• Jesaga Advisers owns 273400 shares worth $5.75M
• ING Investment Management Co Address: 10 State House Square owns 236873 shares worth $2.66M
• Lapides Asset Management owns 213600 shares worth $2.25M

• Harvey Partners sold on Sept. 30, 2011
• ARONSON JOHNSON ORTIZ sold on Sept. 30, 2011
• Citi sold on June 30, 2011
• Barclays sold on June 30, 2011
• D. E. Shaw & Co sold on June 30, 2011
• J P MORGAN CHASE & CO sold on Dec. 31, 2010
• CALAMOS ADVISORS sold on Dec. 31, 2010
• Wellington Management Company sold on Dec. 31, 2010
• Archon Capital Management sold on Sept. 30, 2009
• Maverick Capital sold on Sept. 30, 2008
• Tiger Global Management sold on March 31, 2008
• Lone Pine Capital sold on Sept. 30, 2007
• Roxbury Capital Management sold on June 30, 2007
• Axial Capital Management sold on June 30, 2007
• Navellier & Associates sold on Dec. 31, 2006

• Viasystems (VIAS)
• Leucadia National (LUK)
• MasterCard Incorporated (MA)
• Total System Services (TSS)
• Tractor Supply Company (TSCO)
• Mattel (MAT)
• Ross Stores (ROST)
• Cincinnati Financial Corporation (CINF)
• RadioShack Corporation (RSH)
• Stryker Corporation (SYK)
• Old Republic International Corporation (ORI)
• J.M. Smucker Company (SJM)
• Wet Seal (WTSLA)
• NutriSystem (NTRI)
• JAKKS Pacific (JAKK)
• Imation (IMN)
• Neutral Tandem (TNDM)
• Cubist Pharmaceuticals (CBST)
• Piedmont Natural Gas Company (PNY)
• Sterling Ban (STL)
• Ascena Retail (ASNA)