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

• Frontier Capital Management owns 4.15M shares worth $27.89M
• Royce & Associates owns 1.90M shares worth $11.36M
• Vanguard owns 1.62M shares worth $9.70M
• GLYNN CAPITAL MANAGEMENT owns 1.20M shares worth $11.21M
• Stadium Capital Management owns 1.18M shares worth $12.38M
• Needham Investment Management owns 978060 shares worth $5.84M
• Raging Capital Management owns 690420 shares worth $6.46M
• Power Corporation of Canada owns 543293 shares worth $3.24M
• Coatue Management owns 526593 shares worth $3.54M
• STATE STREET CORPORATION owns 523026 shares worth $3.12M
• Palisade Capital Management owns 458966 shares worth $4.75M
• CalPERS owns 447011 shares worth $2.67M
• Portolan Capital Management owns 416864 shares worth $2.49M
• Renaissance Technologies owns 300515 shares worth $3.15M
• Two Sigma Investments owns 285574 shares worth $3.00M
• StepStone owns 270114 shares worth $1.61M
• Alyeska Investment owns 250000 shares worth $2.62M
• D. E. Shaw & Co owns 212616 shares worth $1.27M
• Sterling Capital Management owns 150759 shares worth $900031
• TIAA-CREF Investment Management owns 149215 shares worth $890813
• Gotham Asset Management owns 148211 shares worth $1.55M
• Principal Financial owns 146769 shares worth $876210
• JPMORGAN CHASE & CO owns 143905 shares worth $1.33M
• Makena Captial Management owns 141819 shares worth $1.33M
• PineBridge Investments owns 133000 shares worth $1.73M
• OppenheimerFunds owns 132333 shares worth $1.24M
• Macquarie owns 132137 shares worth $1.24M
• CITADEL ADVISORS owns 131166 shares worth $1.10M

• First Trust Advisors sold on Dec. 31, 2011
• HARRIS FINANCIAL sold on Sept. 30, 2011
• Wells Fargo & Company sold on Sept. 30, 2011
• Franklin Resources sold on Sept. 30, 2011
• Nuveen Asset Management sold on Sept. 30, 2011
• GOLDMAN SACHS sold on Sept. 30, 2011
• Ramsey Asset Management sold on Sept. 30, 2011
• Wellington Management Company sold on June 30, 2011
• New York State Common Retirement Fund sold on June 30, 2011
• Adams Street Partners sold on June 30, 2011
• Name Passport Capital sold on June 30, 2011
• Credit Suisse AG sold on June 30, 2011
• Barclays sold on June 30, 2011
• William Blair $ Company sold on March 31, 2011
• FRIESS ASSOCIATES sold on March 31, 2011
• Next Century Growth Investors sold on March 31, 2011
• Adage Capital Partners GP sold on March 31, 2011
• Park West Asset Management sold on March 31, 2011
• Mazama Capital Management sold on March 31, 2011
• Bank of America Corporation sold on March 31, 2011
• TCS Capital Management sold on March 31, 2011
• Marshall & Ilsley Corporation sold on Dec. 31, 2010
• Kingdon Capital Management sold on Dec. 31, 2010
• FMR sold on Dec. 31, 2010
• Southpoint Capital Advisors sold on Dec. 31, 2010
• Highland Capital Management sold on Dec. 31, 2010

• Arthur J. Gallagher & Co. (AJG)
• CapitalSource (CSE)
• Moody's Corporation (MCO)
• Tractor Supply Company (TSCO)
• Bed Bath & Beyond (BBBY)
• Cisco Systems (CSCO)
• Core Laboratories N.V. (CLB)
• Diebold Incorporated (DBD)
• Hubbell Incorporated (HUB.B)
• LKQ Corporation (LKQX)
• MICROS Systems (MCRS)
• T. Rowe Price (TROW)
• Watsco, Incorporated (WSO)
• Global Payments (GPN)
• Verisign (VRSN)
• Cabot Corporation (CBT)
• Autoliv (ALV)
• Mine Safety Appliances (MSA)
• Western Digital (WDC)
• Columbus McKinnon (CMCO)
• QuinStreet (QNST)