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

• Columbia Wanger Asset Management owns 4.93M shares worth $38.56M
• Blum Capital Partners owns 4.55M shares worth $36.36M
• Tocqueville Asset Management owns 3.75M shares worth $29.33M
• Vanguard owns 2.61M shares worth $20.44M
• AQR Capital Management owns 2.57M shares worth $20.54M
• Royce & Associates owns 1.27M shares worth $10.11M
• STATE STREET CORPORATION owns 1.07M shares worth $8.36M
• Investment Counselors of Maryland owns 892200 shares worth $7.13M
• Robeco Investment Management owns 876080 shares worth $6.85M
• Wolverine Asset Management owns 857038 shares worth $6.85M
• Stephens Investment Management owns 762745 shares worth $5.96M
• JPMORGAN CHASE & CO owns 749258 shares worth $5.93M
• Renaissance Technologies owns 638018 shares worth $5.10M
• Technical Financial Services owns 566857 shares worth $4.53M
• Ameriprise Financial owns 421290 shares worth $3.37M
• ESSEX INVESTMENT MANAGEMENT owns 402163 shares worth $0
• David W. Seeley owns 361500 shares worth $2.89M
• GOLDMAN SACHS owns 357777 shares worth $2.86M
• ALGERT COLDIRON INVESTORS owns 297512 shares worth $2.38M
• Kendall Square Capital owns 290453 shares worth $2.27M
• UBS AG owns 272123 shares worth $2.17M
• Veritable owns 240480 shares worth $1.88M
• Nomura Holdings owns 236406 shares worth $1.89M
• TIAA-CREF Investment Management owns 231795 shares worth $1.81M
• Principal Financial owns 228882 shares worth $1.79M
• Public Sector Pension Investment Board owns 217182 shares worth $1.70M
• CR Intrinsic Investors owns 200000 shares worth $1.56M
• PEAK6 Investments owns 198284 shares worth $1.58M
• Dalton, Greiner, Hartman, Maher & Co owns 196115 shares worth $1.53M
• King Investment Advisors owns 195670 shares worth $1.53M
• Two Sigma Investments owns 188525 shares worth $1.47M
• Geode Capital Management owns 182429 shares worth $1.43M
• Oxford Asset Management owns 182122 shares worth $1.46M
• CalPERS owns 180955 shares worth $1.42M
• VTrader Pro owns 179275 shares worth $1.43M
• OppenheimerFunds owns 168079 shares worth $1.34M

• WS Capital Management sold on Sept. 30, 2011
• Charles Schwab Investment Management sold on Sept. 30, 2011
• TRUE BEARING ASSET MANAGEMENT sold on Sept. 30, 2011
• Inves sold on Sept. 30, 2011
• Wells Fargo & Company sold on Sept. 30, 2011
• Perimeter Capital Partners sold on June 30, 2011
• KALMAR INVESTMENTS INC /DE/ sold on June 30, 2011
• DuPont Capital Management Corporation sold on March 31, 2011
• Norges Bank Investment Management sold on March 31, 2011
• FMR sold on Dec. 31, 2010
• Praesidium Investment Management Company sold on Dec. 31, 2010
• Muhlenkamp & Company sold on Sept. 30, 2006
• Navellier & Associates sold on March 31, 2004

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