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

• Harris Associates L.P owns 6.41M shares worth $553.29M
• Vanguard owns 6.27M shares worth $541.68M
• STATE STREET CORPORATION owns 5.47M shares worth $472.56M
• GOLDMAN SACHS owns 2.70M shares worth $232.87M
• Artisan Partners Limited Partnership owns 2.28M shares worth $196.79M
• TCW owns 2.27M shares worth $181.26M
• Marsico Capital Management owns 2.01M shares worth $159.94M
• Franklin Resources owns 1.76M shares worth $151.97M
• Neuberger Berman owns 1.76M shares worth $116.11M
• PRIMECAP Management Company owns 1.75M shares worth $150.79M
• Ameriprise Financial owns 1.54M shares worth $101.66M
• RCM Capital Management owns 1.50M shares worth $109.74M
• TIAA-CREF Investment Management owns 1.41M shares worth $121.68M
• ALLIANCEBERNSTEIN owns 1.38M shares worth $96.14M
• American Century Companies owns 1.34M shares worth $115.90M
• Allianz Asset Management AG owns 1.24M shares worth $106.96M
• Norges Bank Investment Management owns 1.12M shares worth $93.94M
• Cambiar Investors owns 1.07M shares worth $92.20M
• CITADEL ADVISORS owns 946264 shares worth $79.48M
• Wells Fargo & Company owns 944496 shares worth $62.30M
• Geode Capital Management owns 936211 shares worth $80.83M
• JPMORGAN CHASE & CO owns 923721 shares worth $61.01M
• Bank of America Corporation owns 918670 shares worth $63.99M
• ----------------------------------------------------------------------------- owns 897599 shares worth $59.25M
• Adage Capital Partners GP owns 895932 shares worth $77.36M
• S.A.C. Capital Advisors owns 843321 shares worth $58.65M
• York Capital Management Global Advisors owns 840616 shares worth $58.46M

• William Blair $ Company sold on Sept. 30, 2011
• Frank Russell Company sold on Sept. 30, 2011
• Rainier Investment Management sold on June 30, 2011
• Johnson Investment Counsel sold on June 30, 2011
• Columbus Circle Investors sold on June 30, 2011
• Conatus Capital Management sold on June 30, 2011
• T. Rowe Price Associates sold on March 31, 2011
• Credit Agricole S.A. sold on Dec. 31, 2010
• Roxbury Capital Management sold on June 30, 2004

• Comcast Corporation (CMCSA)
• Lear Corporation (LEA)
• Time Warner (TWX)
• Microsoft Corporation (MSFT)
• Broadridge Financial Solutions (BR)
• CME (CME)
• Goldman Sachs (GS)
• JPMorgan Chase & Co. (JPM)
• MasterCard Incorporated (MA)
• State Street Corporation (STT)
• U.S. Ban (USB)
• TD Ameritrade Holding (AMTD)
• Principal Financial (PFG)
• Bank of America Corporation (BAC)
• Bank of New York Mellon Corporation (BK)
• Northern Trust Corporation (NTRS)
• Equifax (EFX)
• Berkshire Hathaway (BRK.B)
• Caterpillar (CAT)
• Coca-Cola Company (KO)
• Devon Energy Corporation (DVN)