COLLIERS INTL GROUP INC SUB VTG SHS 194693107 40567 1071500 SH SOLE NONE 1071500 0 0 CHARTER COMMUNICATIONS INC D CL A NEW 16117M305 167978 825731 SH SOLE NONE 825731 0 0 CITIGROUP INC COM NEW 172967424 122908 2943900 SH Call SOLE NONE 2943900 0 0 CREDIT ACCEP CORP MICH COM 225310101 146427 806539 SH SOLE NONE 806539 0 0 EXPRESS SCRIPTS HLDG CO COM 30219G108 90983 1324548 SH SOLE NONE 1324548 0 0 FIRSTSERVICE CORP NEW SUB VTG SH 33767E103 48190 1177081 SH SOLE NONE 1177081 0 0 INTERNATIONAL GAME TECHNOLOGY SHS USD G4863A108 101476 5560328 SH SOLE NONE 5560328 0 0 PRA GROUP INC COM 69354N106 56372 1918060 SH SOLE NONE 1918060 0 0 VALEANT PHARMACEUTICALS INTL COM 91911K102 2 66 SH SOLE NONE 66 0 0 VALEANT PHARMACEUTICALS INTL COM 91911K102 8116 308600 SH Call SOLE NONE 308600 0 0 WELLS FARGO & CO NEW *W EXP 10/28/201 949746101 220317 4555779 SH SOLE NONE 4555779 0 0