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

• Herndon Capital Management owns 9.20M shares worth $186.24M
• Vanguard owns 7.76M shares worth $155.92M
• Wellington Management Company owns 5.09M shares worth $92.25M
• Inves owns 4.96M shares worth $99.79M
• WESTWOOD MANAGEMENT CORP /TX owns 3.65M shares worth $73.31M
• Millennium Management owns 3.41M shares worth $75.02M
• STATE STREET CORPORATION owns 3.24M shares worth $65.09M
• Marathon Asset Management owns 3.03M shares worth $54.96M
• ARGA Investment Management owns 2.60M shares worth $52.29M
• Manulife Asset Management owns 2.46M shares worth $44.69M
• Waddell & Reed Financial owns 2.07M shares worth $37.60M
• DF DENT & CO owns 2.07M shares worth $47.74M
• Mitsubishi UFJ Trust & Banking owns 1.77M shares worth $32.10M
• MAK Capital One owns 1.65M shares worth $33.16M
• Name OMERS Administration Corporation owns 1.60M shares worth $32.16M
• American Century Companies owns 1.59M shares worth $31.97M
• Investec Asset Management owns 1.51M shares worth $27.44M
• ANCHOR CAPITAL ADVISORS owns 1.44M shares worth $31.72M
• Frank Russell Company owns 1.37M shares worth $41.25M
• PDT Partners owns 1.37M shares worth $27.47M
• Two Sigma Investments owns 1.35M shares worth $27.07M
• Elliott Management Corporation owns 1.30M shares worth $26.13M
• CI Investments owns 1.18M shares worth $23.72M
• Elm Ridge Management owns 1.17M shares worth $21.20M
• Norges Bank Investment Management owns 1.12M shares worth $20.39M
• GOLDMAN SACHS owns 1.12M shares worth $22.49M
• Soros Fund Management owns 1.12M shares worth $22.45M
• Daniel D. Thurber owns 1.11M shares worth $22.33M
• Private Capital Management owns 1.06M shares worth $19.30M
• Disciplined Growth Investors owns 1.01M shares worth $20.39M

• T. Rowe Price Associates sold on Dec. 31, 2011
• MCLEAN BUDDEN sold on Dec. 31, 2011
• FENIMORE ASSET MANAGEMENT sold on Sept. 30, 2011
• Marsico Capital Management sold on June 30, 2011
• Ameriprise Financial sold on June 30, 2011
• Perkins Investment Management sold on June 30, 2011
• TimesSquare Capital Management sold on June 30, 2011
• Schroder Investment Management sold on March 31, 2011
• FMR sold on Dec. 31, 2010
• Jennison Associates sold on Dec. 31, 2010
• Thrivent Financial for Lutherans sold on Dec. 31, 2010
• Columbia Wanger Asset Management sold on Dec. 31, 2010

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