Who owns Power-One?

Key details on Power-One (Ticker: PWER)

Who owns Power-One?

Is PWER a good stock to own? Find out who bought Power-One, who sold Power-One (PWER) stock, and who holds a large position in Power-One.

Fund Name Number of Shares Share Valuation As Of
Silver Lake 25.99M $164.24M June 30, 2013
Waddell & Reed Financial 8.20M $34.04M March 31, 2013
Wells Fargo & Company 6.62M $23.84M June 30, 2012
Vanguard 5.69M $35.99M June 30, 2013
T. Rowe Price Associates 5.12M $32.33M June 30, 2013
Artisan Partners Holdings 4.60M $37.25M June 30, 2011
Artisan Partners Limited Partnership 3.82M $24.16M June 30, 2013
Walthausen & Co 3.11M $12.87M March 31, 2013
DIMENSIONAL FUND ADVISORS 2.84M $17.97M June 30, 2013
BlackRock Institutional Trust Company, N.A. 2.74M $17.31M June 30, 2013
David W. Seeley 2.74M $17.29M June 30, 2013
Tocqueville Asset Management 2.52M $11.41M June 30, 2012
Blue Harbour 2.37M $14.98M June 30, 2013
Guggenheim Capital, LLC Managers 2.37M $14.95M June 30, 2013
Sandell Asset Management 2.34M $14.78M June 30, 2013
JPMORGAN CHASE & CO 2.33M $14.72M June 30, 2013
Ecofin 2.08M $8.55M Dec. 31, 2012
AQR Capital Management 2.01M $12.69M June 30, 2013
Thompson, Siegel, & Walmsley 1.96M $8.87M June 30, 2012
Commonwealth of Pennsylvania 1.78M $11.26M June 30, 2013
P. SCHOENFELD ASSET MANAGEMENT 1.70M $10.74M June 30, 2013
Gabelli Funds 1.60M $10.08M June 30, 2013
BlackRock Fund Advisors 1.56M $9.85M June 30, 2013
Cheyne Capital Management 1.53M $9.64M June 30, 2013
NORTHERN TRUST 1.50M $9.50M June 30, 2013
Alpine Associates Advisors 1.43M $9.04M June 30, 2013
Glazer Capital 1.42M $8.99M June 30, 2013
AlphaOne Investment Services 1.41M $7.87M Sept. 30, 2012
Scopia Management 1.35M $5.29M Dec. 31, 2011
NUMERIC INVESTORS 1.30M $5.35M Dec. 31, 2012
Schroder Investment Management 1.30M $5.37M March 31, 2013
STATE STREET CORPORATION 1.27M $8.01M June 30, 2013
Batterymarch Financial Management 1.26M $5.23M March 31, 2013
GAM Holding 1.15M $7.28M June 30, 2013
Barclays 1.11M $7.05M June 30, 2013
PEAK6 Investments 1.11M $6.18M Sept. 30, 2012
Inves 1.10M $4.54M March 31, 2013
Technical Financial Services 1.06M $4.38M Dec. 31, 2012

Who sold Power-One?

Fund Name Date Sold Number of Shares Sold Share Valuation
Norges Bank Investment Management March 31, 2013 1.19M $4.93M
CITADEL ADVISORS Sept. 30, 2011 1.85M $8.32M
Heartland Advisors Sept. 30, 2011 1.38M $6.23M
Perimeter Capital Partners Sept. 30, 2011 1.23M $5.54M
Rivanna Capital Sept. 30, 2011 1.14M $5.11M
Nierenberg Investment Management Company June 30, 2011 3.65M $29.56M
Tiger Global Management June 30, 2011 1.30M $10.53M
Soros Fund Management March 31, 2011 2.84M $24.81M
Ameriprise Financial March 31, 2011 1.91M $16.70M
Southpoint Capital Advisors March 31, 2011 1.85M $16.19M
Credit Suisse AG March 31, 2011 1.82M $15.93M
ESSEX INVESTMENT MANAGEMENT March 31, 2011 1.17M $10291
Wellington Management Company Dec. 31, 2010 6.57M $67.02M
CALAMOS ADVISORS Dec. 31, 2010 2.23M $22.77M
Sunrise Partners Limited Partnership Dec. 31, 2010 1.81M $18.47M
North Run Capital Dec. 31, 2010 1.51M $15.39M
GOLDMAN SACHS Dec. 31, 2010 1.38M $14.10M
FRIESS ASSOCIATES Dec. 30, 2010 4.46M $45.48M
Roxbury Capital Management Sept. 30, 2010 2.23M $20.28M
Carlson Capital Sept. 30, 2010 1.13M $10.24M