The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ADVANTAGE OIL & GAS LTD COM 00765F101 21,145 7,150,000 SH   SOLE   0 0 0
Aegerion Pharmaceuticals Inc. NOTE 2.000% 8/1 00767EAB8 40,342 52,392,000 SH   SOLE   0 0 0
AFFILIATED MANAGERS GROUP COM 008252108 428,038 2,257,821 SH   SOLE   0 0 0
BANK N S HALIFAX COM 064149107 50,237 815,560 SH   SOLE   0 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 467,493 1,563 SH   SOLE   0 0 0
BERKSHIRE HATHAWAY INC DEL CL B 084670702 112,213 562,528 SH   SOLE   0 0 0
BLACK STONE MINERALS L P COM UNIT 09225M101 13,987 845,123 SH   SOLE   0 0 0
COLLIERS INTL GROUP INC SUB VTG SHRS 194693107 64,272 925,814 SH   SOLE   0 0 0
CSX Corp. COM 126408103 587,479 10,545,308 SH   SOLE   0 0 0
DAVIDSTEA INC COM 238661102 10,147 2,984,352 SH   SOLE   0 0 0
DIGI INTL INC COM 253798102 19,650 1,907,764 SH   SOLE   0 0 0
DINE BRANDS GLOBAL INC COM 254423106 51,452 784,574 SH   SOLE   0 0 0
EchoStar Corp., class A CL A 278768106 36,798 697,325 SH   SOLE   0 0 0
ENBRIDGE INC COM 29250N105 37,546 1,193,790 SH   SOLE   0 0 0
EXFO INC SUB VTG SHS 302046107 8,321 1,985,236 SH   SOLE   0 0 0
FLOWSERVE CORP COM 34354P105 602,659 13,908,587 SH   SOLE   0 0 0
FRANCO NEVADA CORP COM 351858105 19,998 293,107 SH   SOLE   0 0 0
GENERAC HLDGS INC COM 368736104 409,760 8,925,282 SH   SOLE   0 0 0
GILDAN ACTIVEWEAR INC COM 375916103 30,270 1,048,060 SH   SOLE   0 0 0
GRAN TIERRA ENERGY INC NOTE 5.000% 4/0 38500TAA9 19,369 16,990,000 SH   SOLE   0 0 0
GRANITE REAL ESTATE INVT TR UNIT/99/99/9999 387437114 126,037 3,195,807 SH   SOLE   0 0 0
MANULIFE FINL CORP COM 56501R106 33,313 1,794,242 SH   SOLE   0 0 0
MIDDLEBY CORP COM 596278101 245,682 1,984,667 SH   SOLE   0 0 0
NATIONAL ENERGY SERVICES REU SHS G6375R107 9,930 1,000,000 SH   SOLE   0 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 940 1,000,000 SH   SOLE   0 0 0
NOVELION THERAPEUTICS INC COM 67001K202 7,683 2,195,063 SH   SOLE   0 0 0
OSISKO GOLD ROYALTIES LTD COM 68827L101 77,360 8,011,757 SH   SOLE   0 0 0
PRICESMART INC COM 741511109 188,513 2,256,288 SH   SOLE   0 0 0
REALOGY HLDGS CORP COM 75605Y106 367,281 13,463,379 SH   SOLE   0 0 0
RESTAURANT BRANDS INTL INC COM 76131D103 84,156 1,478,750 SH   SOLE   0 0 0
SANDSTORM GOLD LTD COM 80013R206 8,513 1,786,293 SH   SOLE   0 0 0
SEACOR HOLDINGS INC NOTE 2.500%12/1 811904AM3 18,043 17,500,000 SH   SOLE   0 0 0
SERITAGE GROWTH PPTYS COM 81752R100 171,231 4,816,630 SH   SOLE   0 0 0
TE CONNECTIVITY LTD COM H84989104 489,837 4,903,277 SH   SOLE   0 0 0
TORONTO DOMINION BK ONT COM 891160509 53,464 942,140 SH   SOLE   0 0 0
UBIQUITI NETWORKS INC COM 90347A100 396,720 5,766,284 SH   SOLE   0 0 0
WABCO HLDGS INC COM 92927K102 430,206 3,213,612 SH   SOLE   0 0 0
WABTEC CORP COM 929740108 388,103 4,767,855 SH   SOLE   0 0 0
WELLS FARGO & CO NEW COM 949746101 649,148 12,385,960 SH   SOLE   0 0 0
WESCO INTL INC COM 95082P105 256,529 4,134,223 SH   SOLE   0 0 0