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
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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
Aegerion Pharmaceuticals Inc., NOTE 2.000% 8/1 00767EAB8 41,765 51,642,000 SH   SOLE   0 0 0
AFFILIATED MANAGERS GROUP COM 008252108 392,611 1,912,841 SH   SOLE   0 0 0
AMERICAN INTL GROUP INC W EXP 01/19/202 026874156 47 2,580 SH   SOLE   0 0 0
ANTHEM INC COM 036752103 257,934 1,146,321 SH   SOLE   0 0 0
BANK N S HALIFAX COM 064149107 52,632 815,560 SH   SOLE   0 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 409,498 1,376 SH   SOLE   0 0 0
BERKSHIRE HATHAWAY INC DEL CL B 084670702 110,620 558,068 SH   SOLE   0 0 0
BLACK STONE MINERALS L P COM UNIT 09225M101 15,162 845,123 SH   SOLE   0 0 0
CARPENTER TECHNOLOGY CORP COM 144285103 108,740 2,132,571 SH   SOLE   0 0 0
COLLIERS INTL GROUP INC SUB VTG SHRS 194693107 66,218 1,097,094 SH   SOLE   0 0 0
CSX Corp. COM 126408103 443,685 8,065,527 SH   SOLE   0 0 0
DAVIDSTEA INC COM 238661102 11,639 2,984,352 SH   SOLE   0 0 0
DIGI INTL INC COM 253798102 18,219 1,907,764 SH   SOLE   0 0 0
DineEquity, Inc. COM 254423106 37,294 735,138 SH   SOLE   0 0 0
EchoStar Corp., class A CL A 278768106 42,549 710,328 SH   SOLE   0 0 0
ENERPLUS CORP COM 292766102 6,112 624,086 SH   SOLE   0 0 0
EXFO INC SUB VTG SHS 302046107 13,175 3,011,136 SH   SOLE   0 0 0
FLOWSERVE CORP COM 34354P105 570,463 13,540,539 SH   SOLE   0 0 0
FRANCO NEVADA CORP COM 351858105 20,758 259,730 SH   SOLE   0 0 0
GENERAC HLDGS INC COM 368736104 445,151 8,989,325 SH   SOLE   0 0 0
GRAN TIERRA ENERGY INC COM 38500T101 3,570 1,315,882 SH   SOLE   0 0 0
GRANITE REAL ESTATE INVT TR UNIT/99/99/9999 387437114 117,306 2,993,989 SH   SOLE   0 0 0
MANULIFE FINL CORP COM 56501R106 37,426 1,794,242 SH   SOLE   0 0 0
NATIONAL ENERGY SERVICES REU SHS G6375R107 9,950 1,000,000 SH   SOLE   0 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 830 1,000,000 SH   SOLE   0 0 0
OSISKO GOLD ROYALTIES LTD COM 68827L101 45,765 3,961,938 SH   SOLE   0 0 0
REALOGY HLDGS CORP COM 75605Y106 315,616 11,910,037 SH   SOLE   0 0 0
RESTAURANT BRANDS INTL INC COM 76131D103 79,828 1,298,628 SH   SOLE   0 0 0
SANDSTORM GOLD LTD COM 80013R206 9,174 1,836,293 SH   SOLE   0 0 0
SEACOR HOLDINGS INC NOTE 2.500%12/1 811904AM3 17,952 17,500,000 SH   SOLE   0 0 0
TE CONNECTIVITY LTD COM H84989104 417,741 4,395,424 SH   SOLE   0 0 0
TORONTO DOMINION BK ONT COM 891160509 55,201 942,140 SH   SOLE   0 0 0
UBIQUITI NETWORKS INC COM 90347A100 423,820 5,967,614 SH   SOLE   0 0 0
WABCO HLDGS INC COM 92927K102 451,029 3,143,062 SH   SOLE   0 0 0
WABTEC CORP COM 929740108 418,841 5,143,571 SH   SOLE   0 0 0
WELLS FARGO & CO NEW COM 949746101 721,168 11,886,735 SH   SOLE   0 0 0
WESCO INTL INC COM 95082P105 284,077 4,168,415 SH   SOLE   0 0 0
FIRSTSERVICE CORP SUB VTG SH 337738108 1,304 18,643 SH   SOLE   0 0 0
GILDAN ACTIVEWEAR INC COM 375916103 33,860 1,048,060 SH   SOLE   0 0 0
MICROSEMI CORP COM 595137100 266,162 5,153,192 SH   SOLE   0 0 0
NOVELION THERAPEUTICS INC COM 67001K202 6,839 2,191,913 SH   SOLE   0 0 0
ADVANTAGE OIL & GAS LTD COM 00765F101 23,490 5,468,100 SH   SOLE   0 0 0
BIOVERATIV INC COM 09075E100 174,205 3,230,809 SH   SOLE   0 0 0
SERITAGE GROWTH PPTYS COM 81752R100 21,817 539,226 SH   SOLE   0 0 0