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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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
3M Company COM 88579Y101 6,246 30,000 SH   SOLE   30,000 0 0
3M Company COM 88579Y101 36,225 174,000 SH   DFND 1 174,000 0 0
Accenture COM G1151C101 1,237 10,000 SH   SOLE   10,000 0 0
Accenture COM G1151C101 17,117 138,400 SH   DFND 1 138,400 0 0
Albemarle Corp COM 012653101 6,121 58,000 SH   DFND 1 58,000 0 0
Alleghany Corporation COM 017175100 2,574 4,328 SH   SOLE   4,328 0 0
Allergan, Inc. COM G0177J108 8,022 33,000 SH   DFND 1 33,000 0 0
Alphabet Inc COM 02079K107 79,088 87,031 SH   DFND 1 87,031 0 0
Alphabet Inc Class A COM 02079K305 11,621 12,500 SH   DFND 1 12,500 0 0
Amazon.com COM 023135106 67,760 70,000 SH   DFND 1 70,000 0 0
American Express COM 025816109 842 10,000 SH   SOLE   10,000 0 0
American Express COM 025816109 31,674 376,000 SH   DFND 1 376,000 0 0
American Tower COM 03027X100 4,697 35,500 SH   DFND 1 35,500 0 0
Analog Devices Inc COM 032654105 40,130 515,811 SH   DFND 1 515,811 0 0
Anthem Inc COM 036752103 42,141 224,000 SH   DFND 1 224,000 0 0
Aon Corporation COM G0408V102 4,919 37,000 SH   DFND 1 37,000 0 0
Apollo Global Management - A COM 037612306 15,473 585,000 SH   DFND 1 585,000 0 0
Apple Inc COM 037833100 14,848 103,100 SH   DFND 1 103,100 0 0
Archer Daniels COM 039483102 60,551 1,463,300 SH   DFND 1 1,463,300 0 0
Automatic Data Processing COM 053015103 54,376 530,700 SH   DFND 1 530,700 0 0
Baxter International Inc COM 071813109 1,332 22,000 SH   DFND 1 22,000 0 0
Becton Dickinson COM 075887109 1,756 9,000 SH   DFND 1 9,000 0 0
Berkshire Hathaway Class B COM 084670702 82,161 485,100 SH   SOLE   485,100 0 0
Berkshire Hathaway Class B COM 084670702 173,859 1,026,507 SH   DFND 1 1,026,507 0 0
Berkshire Hathaway, Inc. COM 084670108 70,042 275 SH   SOLE   275 0 0
Berkshire Hathaway, Inc. COM 084670108 207,071 813 SH   DFND 1 813 0 0
Blackrock Inc COM 09247X101 73,922 175,000 SH   DFND 1 175,000 0 0
Blackstone Group COM 09253U108 25,346 760,000 SH   DFND 1 760,000 0 0
Boeing Co COM 097023105 16,492 83,400 SH   DFND 1 83,400 0 0
Bristol Myers Squibb COM 110122108 557 10,000 SH   DFND 1 10,000 0 0
Brookfield Asset Management COM 112585104 25,290 645,000 SH   SOLE   645,000 0 0
Brookfield Asset Management COM 112585104 184,907 4,715,821 SH   DFND 1 4,715,821 0 0
Brookfield Business Partners COM G16234109 349 12,900 SH   SOLE   12,900 0 0
Brookfield Business Partners COM G16234109 2,399 88,694 SH   DFND 1 88,694 0 0
Brown Forman Class A COM 115637100 41,560 843,000 SH   DFND 1 843,000 0 0
Brown-Forman Class B COM 115637209 10,242 210,750 SH   DFND 1 210,750 0 0
Bunge Limited COM G16962105 5,356 71,800 SH   DFND 1 71,800 0 0
CDK Global Inc COM 12508E101 10,978 176,897 SH   DFND 1 176,897 0 0
CME Group Inc COM 12572Q105 16,907 135,000 SH   DFND 1 135,000 0 0
CVS Corporation COM 126650100 21,483 267,000 SH   DFND 1 267,000 0 0
Cable One COM 12685J105 3,697 5,200 SH   DFND 1 5,200 0 0
Carmax COM 143130102 14,819 235,000 SH   SOLE   235,000 0 0
Carmax COM 143130102 294,999 4,678,070 SH   DFND 1 4,678,070 0 0
Caterpillar Inc COM 149123101 29,874 278,000 SH   DFND 1 278,000 0 0
Charles Schwab COM 808513105 45,409 1,057,000 SH   DFND 1 1,057,000 0 0
Choice Hotels Intl Inc COM 169905106 1,735 27,000 SH   DFND 1 27,000 0 0
Cisco COM 17275R102 10,705 342,000 SH   DFND 1 342,000 0 0
Colfax Corporation COM 194014106 42,719 1,085,070 SH   SOLE   1,085,070 0 0
Colfax Corporation COM 194014106 1,968 50,000 SH   DFND 1 50,000 0 0
Comcast Corp- Class A COM 20030N101 8,212 211,000 SH   DFND 1 211,000 0 0
Core Labs NV COM N22717107 11,140 110,000 SH   DFND 1 110,000 0 0
Costco COM 22160K105 800 5,000 SH   SOLE   5,000 0 0
Costco COM 22160K105 5,438 34,000 SH   DFND 1 34,000 0 0
Diageo PLC COM 25243Q205 39,364 328,500 SH   SOLE   328,500 0 0
Diageo PLC COM 25243Q205 122,143 1,019,300 SH   DFND 1 1,019,300 0 0
Discovery Communications COM 25470F302 24,328 965,000 SH   DFND 1 965,000 0 0
Disney COM 254687106 179,265 1,687,200 SH   DFND 1 1,687,200 0 0
Dollar Tree Inc COM 256746108 4,335 62,000 SH   DFND 1 62,000 0 0
Ecolab COM 278865100 29,046 218,800 SH   DFND 1 218,800 0 0
Exxon Corporation COM 30231G102 16,130 199,800 SH   SOLE   199,800 0 0
Exxon Corporation COM 30231G102 60,144 745,000 SH   DFND 1 745,000 0 0
Facebook COM 30303M102 14,872 98,500 SH   DFND 1 98,500 0 0
Factset Research COM 303075105 27,254 164,000 SH   DFND 1 164,000 0 0
Flowserve COM 34354P105 2,647 57,000 SH   DFND 1 57,000 0 0
General Dynamics COM 369550108 76,665 387,000 SH   DFND 1 387,000 0 0
General Electric COM 369604103 1,080 40,000 SH   DFND 1 40,000 0 0
Gilead Sciences Inc COM 375558103 2,336 33,000 SH   DFND 1 33,000 0 0
Goldman Sachs COM 38141G104 3,794 17,100 SH   DFND 1 17,100 0 0
Graham Holdings Co COM 384637104 3,118 5,200 SH   DFND 1 5,200 0 0
Hasbro, Inc COM 418056107 40,590 364,000 SH   DFND 1 364,000 0 0
Healthcare Services Group COM 421906108 2,576 55,000 SH   DFND 1 55,000 0 0
Heico Corp COM 422806109 269 3,750 SH   DFND 1 3,750 0 0
Heico Corp Class A COM 422806208 7,593 122,375 SH   DFND 1 122,375 0 0
Hershey Foods COM 427866108 2,588 24,100 SH   DFND 1 24,100 0 0
Hexcel Corp COM 428291108 3,431 65,000 SH   DFND 1 65,000 0 0
Home Depot COM 437076102 3,068 20,000 SH   SOLE   20,000 0 0
Home Depot COM 437076102 138,060 900,000 SH   DFND 1 900,000 0 0
Hormel Foods COM 440452100 239 7,000 SH   DFND 1 7,000 0 0
IBM COM 459200101 2,415 15,700 SH   DFND 1 15,700 0 0
Illinois Tool Works COM 452308109 32,947 230,000 SH   DFND 1 230,000 0 0
Investors Title Company COM 461804106 41,261 213,300 SH   DFND 1 213,300 0 0
JP Morgan COM 46625H100 16,726 183,000 SH   DFND 1 183,000 0 0
John Deere COM 244199105 135,380 1,095,400 SH   DFND 1 1,095,400 0 0
Johnson and Johnson COM 478160104 7,276 55,000 SH   SOLE   55,000 0 0
Johnson and Johnson COM 478160104 73,527 555,800 SH   DFND 1 555,800 0 0
KKR & Co LLC COM 48248M102 15,847 852,000 SH   DFND 1 852,000 0 0
Liberty Braves Group A COM 531229706 1,018 42,600 SH   DFND 1 42,600 0 0
Liberty Braves Group C COM 531229888 2,392 99,788 SH   DFND 1 99,788 0 0
Liberty Broadband A COM 530307107 15,721 183,250 SH   DFND 1 183,250 0 0
Liberty Broadband Class C COM 530307305 14,931 172,113 SH   DFND 1 172,113 0 0
Liberty Global PLC COM G5480U104 3,790 118,000 SH   DFND 1 118,000 0 0
Liberty Global PLC Lilac COM G5480U138 320 14,720 SH   DFND 1 14,720 0 0
Liberty Media Group A COM 531229870 4,536 129,500 SH   DFND 1 129,500 0 0
Liberty Media Group C COM 531229854 9,503 259,500 SH   DFND 1 259,500 0 0
Liberty Sirius Group A COM 531229409 17,883 426,000 SH   DFND 1 426,000 0 0
Liberty Sirius Group C COM 531229607 21,767 522,000 SH   DFND 1 522,000 0 0
Live Nation COM 538034109 12,779 366,700 SH   DFND 1 366,700 0 0
Lowes COM 548661107 7,365 95,000 SH   SOLE   95,000 0 0
Lowes COM 548661107 36,827 475,000 SH   DFND 1 475,000 0 0
MSCI COM 55354G100 14,110 137,000 SH   DFND 1 137,000 0 0
Marriott International COM 571903202 151,294 1,508,269 SH   DFND 1 1,508,269 0 0
Marsh & McLennan COM 571748102 47,517 609,500 SH   DFND 1 609,500 0 0
Mastercard, Inc COM 57636Q104 20,902 172,100 SH   DFND 1 172,100 0 0
Maxim Integrated Products COM 57772K101 8,396 187,000 SH   DFND 1 187,000 0 0
McKesson Corp COM 58155Q103 2,485 15,100 SH   DFND 1 15,100 0 0
Merck COM 58933Y105 359 5,600 SH   DFND 1 5,600 0 0
Microsoft Corp COM 594918104 19,300 280,000 SH   DFND 1 280,000 0 0
Monsanto Co COM 61166W101 46,953 396,700 SH   DFND 1 396,700 0 0
Moody's Corp COM 615369105 35,287 290,000 SH   DFND 1 290,000 0 0
NXP Semiconductors NV COM N6596X109 3,831 35,000 SH   DFND 1 35,000 0 0
Nike COM 654106103 21,299 361,000 SH   DFND 1 361,000 0 0
Norfolk Southern COM 655844108 27,930 229,500 SH   DFND 1 229,500 0 0
Novartis AG-Sponsored ADR COM 66987V109 309 3,700 SH   DFND 1 3,700 0 0
Novo-Nordisk A/S COM 670100205 46,107 1,075,000 SH   DFND 1 1,075,000 0 0
Oaktree Capital Group LLC COM 674001201 39,633 850,500 SH   DFND 1 850,500 0 0
Paccar COM 693718108 7,813 118,300 SH   DFND 1 118,300 0 0
Parker-Hannifin Corp COM 701094104 17,356 108,600 SH   DFND 1 108,600 0 0
Patterson Companies Inc. COM 703395103 7,888 168,000 SH   DFND 1 168,000 0 0
Paychex COM 704326107 8,541 150,000 SH   DFND 1 150,000 0 0
Penske Automotive Group COM 70959W103 2,722 62,000 SH   DFND 1 62,000 0 0
Pepsico COM 713448108 16,815 145,600 SH   DFND 1 145,600 0 0
Philip Morris International COM 718172109 13,448 114,500 SH   DFND 1 114,500 0 0
Praxair Inc. COM 74005P104 9,862 74,400 SH   DFND 1 74,400 0 0
Priceline Group Inc COM 741503403 374 200 SH   DFND 1 200 0 0
RLI Corporation COM 749607107 65,395 1,197,272 SH   DFND 1 1,197,272 0 0
Ritchie Bros COM 767744105 3,276 114,000 SH   DFND 1 114,000 0 0
Rockwell Automation Inc COM 773903109 19,079 117,800 SH   DFND 1 117,800 0 0
Rockwell Collins Inc COM 774341101 2,942 28,000 SH   DFND 1 28,000 0 0
Rollins, Inc. COM 775711104 16,842 413,700 SH   DFND 1 413,700 0 0
S&P Global COM 78409V104 21,461 147,000 SH   DFND 1 147,000 0 0
SEI Investments Co COM 784117103 16,467 306,200 SH   DFND 1 306,200 0 0
Schlumberger COM 806857108 263 4,000 SH   DFND 1 4,000 0 0
Sensata Technologies Holding COM N7902X106 6,323 148,000 SH   DFND 1 148,000 0 0
Starbucks Corp COM 855244109 2,274 39,000 SH   DFND 1 39,000 0 0
Stericycle Inc COM 858912108 15,035 197,000 SH   DFND 1 197,000 0 0
Synalloy Corporation COM 871565107 4,691 414,804 SH   SOLE   414,804 0 0
T.Rowe Price COM 74144T108 816 11,000 SH   SOLE   11,000 0 0
T.Rowe Price COM 74144T108 22,486 303,000 SH   DFND 1 303,000 0 0
Texas Instruments Inc COM 882508104 38,311 498,000 SH   DFND 1 498,000 0 0
The Carlyle Group COM 14309L102 13,667 692,000 SH   DFND 1 692,000 0 0
The Travelers Companies Inc COM 89417E109 39,857 315,000 SH   DFND 1 315,000 0 0
Tyson Foods COM 902494103 8,893 142,000 SH   DFND 1 142,000 0 0
Under Armour Inc-Class C COM 904311206 1,210 60,000 SH   DFND 1 60,000 0 0
Unilever PLC ADR COM 904767704 82,674 1,527,600 SH   DFND 1 1,527,600 0 0
Union Pacific COM 907818108 9,214 84,600 SH   DFND 1 84,600 0 0
United Health Group Inc COM 91324P102 122,933 663,000 SH   DFND 1 663,000 0 0
United Technologies COM 913017109 18,622 152,500 SH   DFND 1 152,500 0 0
VF Corp COM 918204108 1,774 30,800 SH   DFND 1 30,800 0 0
Verisk Analytics Inc COM 92345Y106 6,159 73,000 SH   DFND 1 73,000 0 0
Visa COM 92826C839 84,805 904,300 SH   DFND 1 904,300 0 0
W.P. Carey COM 92936U109 2,970 45,000 SH   SOLE   45,000 0 0
W.P. Carey COM 92936U109 59,752 905,200 SH   DFND 1 905,200 0 0
WR Berkley Corp COM 084423102 553 8,000 SH   DFND 1 8,000 0 0
Walgreens Boots Alliance Inc COM 931427108 167,192 2,135,000 SH   DFND 1 2,135,000 0 0
Watsco Inc COM 942622200 33,847 219,500 SH   DFND 1 219,500 0 0