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

• Broadfin Capital owns 2.69M shares worth $30.03M
• Camber Capital Management owns 1.65M shares worth $21.57M
• OrbiMed Advisors owns 1.57M shares worth $21.07M
• Vanguard owns 1.29M shares worth $17.34M
• Austin W. Marxe and David M. Greenhouse owns 992729 shares worth $11.84M
• William Blair $ Company owns 939276 shares worth $12.28M
• Deerfield Management Company owns 861433 shares worth $11.26M
• STATE STREET CORPORATION owns 588644 shares worth $7.91M
• Waterstone Capital Management owns 500000 shares worth $4.75M
• J. Carlo Cannell owns 489946 shares worth $4.62M
• Millennium Management owns 485000 shares worth $5.79M
• Motley Fool Asset Management owns 436600 shares worth $5.87M
• Consonance Capital owns 422422 shares worth $3.98M
• BEDDOW CAPITAL MANAGEMENT owns 408750 shares worth $5.49M
• WESTWOOD MANAGEMENT CORP /TX owns 352171 shares worth $3.93M
• Thomson Horstmann & Bryant, Inc." owns 334468 shares worth $4.37M
• Cannell Capital owns 313132 shares worth $3.49M
• CR Intrinsic Investors owns 293100 shares worth $3.28M
• AlphaOne Investment Services owns 254884 shares worth $3.43M
• Paradigm Capital Management owns 223100 shares worth $2.10M
• ARTIO GLOBAL Management owns 215724 shares worth $2.51M
• Technical Financial Services owns 214824 shares worth $2.89M
• TIAA-CREF Investment Management owns 207742 shares worth $2.79M
• GRT Capital Partners owns 197862 shares worth $2.36M
• Rice Hall James & Associates owns 191531 shares worth $2.14M
• Robeco Investment Management owns 185510 shares worth $2.21M
• Ameriprise Financial owns 183841 shares worth $2.14M

• Norges Bank Investment Management sold on March 31, 2012
• Sparta Asset Management sold on Sept. 30, 2011
• Hambrecht & Quist Capital Management sold on Sept. 30, 2011
• Anthion Management sold on Sept. 30, 2011
• CITADEL ADVISORS sold on Sept. 30, 2011
• Jennison Associates sold on June 30, 2011
• GOLDMAN SACHS sold on June 30, 2011
• Damian Sousa sold on June 30, 2011
• Emerald Advisers sold on June 30, 2011
• Decade Capital Management sold on June 30, 2011
• Chinook Capital Management sold on June 30, 2011
• Allianz Global Investors of America sold on June 30, 2011
• Mason Street Advisors sold on June 30, 2011
• OHIO PERS sold on June 30, 2011
• Nierenberg Investment Management Company sold on March 31, 2011
• Perimeter Capital Partners sold on March 31, 2011
• Wells Fargo & Company sold on March 31, 2011
• Arbor Capital Management sold on Dec. 31, 2010

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