Ticker: CSIQ, Company: Canadian Solar Inc., Type: SC 13G/A, Date: 2012-02-10
Original SEC Filing: Click here

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Webplus: CSIQ/20120210/SC_13G.A/2_EX-99.1/000.htm SEC Original: d296949dex991.htm
Dated: February 10, 2012 Columbia Wanger Asset Management, LLC Bruce H. Lauer Chief Operating Officer Columbia Acorn Trust Bruce H. Lauer Vice President, Treasurer and Secretary EX-99.1 2 d296949dex991.htm JOINT FILING AGREEMENT

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Webplus: CSIQ/20120210/SC_13G.A/1/000.htm SEC Original: d296949dsc13ga.htm
1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY): Columbia Wanger Asset Management, LLC 04-3519872 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) ¨ ¨ (a) 3

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Company Information:

Ticker: CSIQ, Company: Canadian Solar Inc., Type: SC 13G/A, Date: 2012-02-10CIK: 0001375877, Location: A6, SIC: 3674, SIC Desc: SEMICONDUCTORS & RELATED DEVICES
Business Phone & Address:
545 SPEEDVALE AVENUE
ONTARIO, A6 N1K 1E6