Is CSIQ a good stock to own? Find out who bought Canadian Solar, who sold Canadian Solar (CSIQ) stock, and who holds a large position in Canadian Solar.

• Columbia Wanger Asset Management owns 1.75M shares worth $5.97M
• Towle & Co owns 1.38M shares worth $4.78M
• Quentec Asset Management owns 751850 shares worth $2.60M
• Himanshu H. Shah owns 689026 shares worth $2.38M
• Inves owns 456981 shares worth $1.58M
• Cavalry Management owns 362000 shares worth $1.23M
• Guggenheim Capital, LLC Managers owns 353033 shares worth $1.12M
• S Squared Technology owns 350000 shares worth $1.19M
• Canada Pension Plan Investment Board owns 344800 shares worth $1.10M
• RHJ International SA owns 327314 shares worth $1.18M
• GOLDMAN SACHS owns 301211 shares worth $957850
• CalPERS owns 277500 shares worth $960150
• Citi owns 232939 shares worth $619617
• Valinor Management owns 212500 shares worth $565250
• Spark LP/DE owns 196200 shares worth $525816
• Bank of America Corporation owns 196127 shares worth $521697
• Savitr Capital owns 192123 shares worth $664745
• D. E. Shaw & Co owns 178409 shares worth $642272
• Zurcher Kantonalbank owns 159129 shares worth $423283
• GSA Capital Partners owns 153502 shares worth $532651
• MOORE CAPITAL MANAGEMENT owns 150000 shares worth $519000
• Jesaga Advisers owns 135000 shares worth $1.67M
• KBC Group NV owns 124378 shares worth $422885
• Frank Russell Company owns 115688 shares worth $306573
• Charles Schwab Investment Management owns 103000 shares worth $292520
• OZ Management owns 102100 shares worth $347140
• Barclays owns 92700 shares worth $259560
• SSI Investment Management owns 89870 shares worth $305558
• Walleye Trading owns 85900 shares worth $286047
• VAN ECK ASSOCIATES owns 79098 shares worth $284752
• PEAK6 Investments owns 77200 shares worth $205352

• SAM Sustainable Asset Management sold on Sept. 30, 2011
• Norges Bank Investment Management sold on Sept. 30, 2011
• CITADEL ADVISORS sold on Sept. 30, 2011
• Crosslink Capital sold on Sept. 30, 2011
• First Heartland Consultants sold on Sept. 30, 2011
• Wellington Management Company sold on Sept. 30, 2011
• Oxford Asset Management sold on Sept. 30, 2011
• UBS AG sold on Sept. 30, 2011
• LUMINUS MANAGEMENT sold on June 30, 2011
• ICON Advisers sold on March 31, 2011
• Parallax Volatility Advisers sold on March 31, 2011
• Two Sigma Investments sold on Dec. 31, 2010
• Renaissance Technologies sold on Dec. 31, 2010
• Credit Suisse AG sold on Dec. 31, 2010

• PHH Corporation (PHH)
• SUPERVALU (SVU)
• Chiquita Brands International (CQB)
• Valero Energy Corporation (VLO)
• Goodyear Tire & Rubber Company (GT)
• CNA Financial Corporation (CNA)
• Sanmina-SCI Corporation (SANM)
• Tesoro Corporation (TSO)
• Hawaiian Holdings (HA)
• Brown Shoe Company (BWS)
• Ingram Micro (IM)
• PolyOne Corporation (POL)
• Canadian Solar (CSIQ)
• GameStop (GME)
• General Cable Corporation (BGC)
• Hanover Insurance (THG)
• OfficeMax Incorporated (OMX)
• Navistar International Corporation (NAV)
• Dole Food Company (DOLE)
• AmeriServ Financial (ASRV)
• Virco Mfg. Corporation (VIRC)