Is FFIV a good stock to own? Find out who bought F5 Networks, who sold F5 Networks (FFIV) stock, and who holds a large position in F5 Networks.

• Vanguard owns 4.91M shares worth $437.49M
• STATE STREET CORPORATION owns 3.37M shares worth $300.14M
• Ameriprise Financial owns 2.68M shares worth $266.50M
• Inves owns 2.59M shares worth $230.36M
• JPMORGAN CHASE & CO owns 2.48M shares worth $246.62M
• Wells Fargo & Company owns 2.19M shares worth $217.70M
• Maverick Capital owns 2.04M shares worth $182.09M
• Allianz Asset Management AG owns 2.01M shares worth $178.81M
• TIAA-CREF Investment Management owns 1.90M shares worth $169.54M
• Franklin Resources owns 1.78M shares worth $158.20M
• ALLIANCEBERNSTEIN owns 1.61M shares worth $143.30M
• Harding Loevner owns 1.47M shares worth $130.55M
• ING Investment Management Co Address: 10 State House Square owns 1.40M shares worth $124.43M
• Rainier Investment Management owns 1.28M shares worth $124.45M
• Turner Investments owns 1.15M shares worth $120.78M
• PEAK6 Investments owns 1.06M shares worth $105.43M
• T. Rowe Price Associates owns 995977 shares worth $88.72M
• Jennison Associates owns 920216 shares worth $81.97M
• FRED ALGER MANAGEMENT owns 917902 shares worth $81.77M
• Renaissance Technologies owns 896574 shares worth $89.26M
• Columbia Wanger Asset Management owns 891000 shares worth $79.37M
• Barclays owns 883700 shares worth $93.78M
• D. E. Shaw & Co owns 855640 shares worth $76.22M
• Waddell & Reed Financial owns 852777 shares worth $75.97M
• DSM Capital Partners owns 847869 shares worth $114.43M
• Zevenbergen Capital Investments owns 769661 shares worth $68.56M
• CALAMOS ADVISORS owns 766663 shares worth $81.36M
• TCW owns 761693 shares worth $80.83M
• Wellington Management Company owns 753194 shares worth $74.99M
• American Century Companies owns 722740 shares worth $75.67M

• Thrivent Financial for Lutherans sold on Sept. 30, 2011
• Citi sold on Sept. 30, 2011
• Legg Mason Capital Management sold on Sept. 30, 2011
• GOLDMAN SACHS sold on Sept. 30, 2011
• Coatue Management sold on June 30, 2011
• Marsico Capital Management sold on June 30, 2011
• FRIESS ASSOCIATES sold on June 30, 2011
• RCM Capital Management sold on March 31, 2011
• UBS AG sold on March 31, 2011
• FMR sold on Dec. 31, 2010
• Neuberger Berman sold on Dec. 31, 2010
• S.A.C. Capital Advisors sold on Sept. 30, 2009

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