CSIQ [Canadian Solar] SC 13G: Ardsley Partners Fund II, L.P. 2 CHECK THE
[Ardsley Partners Fund II, L.P. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP x (a) ¨ (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF 5 SOLE VOTING POWER 0 6 SHARED VOTING POWER 861,600 Common Shares 7 SOLE DISPOSITIVE POWER 0 8 SHARED DISPOSITIVE POWER 861,600 Common Shares]