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 6,297 30,000 SH   SOLE   30,000 0 0
3M Company COM 88579Y101 36,523 174,000 SH   DFND 1 174,000 0 0
Accenture COM G1151C101 1,351 10,000 SH   SOLE   10,000 0 0
Accenture COM G1151C101 20,179 149,400 SH   DFND 1 149,400 0 0
Albemarle Corp COM 012653101 9,951 73,000 SH   DFND 1 73,000 0 0
Alleghany Corporation COM 017175100 2,398 4,328 SH   SOLE   4,328 0 0
Allergan, Inc. COM G0177J108 6,763 33,000 SH   DFND 1 33,000 0 0
Alphabet Inc COM 02079K107 93,063 97,031 SH   DFND 1 97,031 0 0
Alphabet Inc Class A COM 02079K305 12,171 12,500 SH   DFND 1 12,500 0 0
Amazon.com COM 023135106 76,908 80,000 SH   DFND 1 80,000 0 0
American Express COM 025816109 905 10,000 SH   SOLE   10,000 0 0
American Express COM 025816109 34,013 376,000 SH   DFND 1 376,000 0 0
American Tower COM 03027X100 4,852 35,500 SH   DFND 1 35,500 0 0
Analog Devices Inc COM 032654105 46,343 537,811 SH   DFND 1 537,811 0 0
Anthem Inc COM 036752103 42,533 224,000 SH   DFND 1 224,000 0 0
Aon Corporation COM G0408V102 5,406 37,000 SH   DFND 1 37,000 0 0
Apollo Global Management - A COM 037612306 20,618 685,000 SH   DFND 1 685,000 0 0
Apple Inc COM 037833100 17,431 113,100 SH   DFND 1 113,100 0 0
Archer Daniels COM 039483102 62,205 1,463,300 SH   DFND 1 1,463,300 0 0
Automatic Data Processing COM 053015103 58,016 530,700 SH   DFND 1 530,700 0 0
Baxter International Inc COM 071813109 1,380 22,000 SH   DFND 1 22,000 0 0
Becton Dickinson COM 075887109 1,764 9,000 SH   DFND 1 9,000 0 0
Berkshire Hathaway Class B COM 084670702 88,929 485,100 SH   SOLE   485,100 0 0
Berkshire Hathaway Class B COM 084670702 188,179 1,026,507 SH   DFND 1 1,026,507 0 0
Berkshire Hathaway, Inc. COM 084670108 75,553 275 SH   SOLE   275 0 0
Berkshire Hathaway, Inc. COM 084670108 223,364 813 SH   DFND 1 813 0 0
Blackrock Inc COM 09247X101 80,476 180,000 SH   DFND 1 180,000 0 0
Blackstone Group COM 09253U108 28,364 850,000 SH   DFND 1 850,000 0 0
Boeing Co COM 097023105 23,997 94,400 SH   DFND 1 94,400 0 0
Bristol Myers Squibb COM 110122108 637 10,000 SH   DFND 1 10,000 0 0
Brookfield Asset Management COM 112585104 26,638 645,000 SH   SOLE   645,000 0 0
Brookfield Asset Management COM 112585104 197,861 4,790,821 SH   DFND 1 4,790,821 0 0
Brookfield Business Partners COM G16234109 382 12,900 SH   SOLE   12,900 0 0
Brookfield Business Partners COM G16234109 2,630 88,694 SH   DFND 1 88,694 0 0
Brown Forman Class A COM 115637100 46,947 843,000 SH   DFND 1 843,000 0 0
Brown-Forman Class B COM 115637209 11,444 210,750 SH   DFND 1 210,750 0 0
Bunge Limited COM G16962105 4,987 71,800 SH   DFND 1 71,800 0 0
CDK Global Inc COM 12508E101 11,160 176,897 SH   DFND 1 176,897 0 0
CME Group Inc COM 12572Q105 18,317 135,000 SH   DFND 1 135,000 0 0
CVS Corporation COM 126650100 21,712 267,000 SH   DFND 1 267,000 0 0
Cable One COM 12685J105 3,755 5,200 SH   DFND 1 5,200 0 0
Carmax COM 143130102 17,815 235,000 SH   SOLE   235,000 0 0
Carmax COM 143130102 354,644 4,678,070 SH   DFND 1 4,678,070 0 0
Caterpillar Inc COM 149123101 34,669 278,000 SH   DFND 1 278,000 0 0
Charles Schwab COM 808513105 46,233 1,057,000 SH   DFND 1 1,057,000 0 0
Choice Hotels Intl Inc COM 169905106 2,875 45,000 SH   DFND 1 45,000 0 0
Cisco COM 17275R102 11,501 342,000 SH   DFND 1 342,000 0 0
Colfax Corporation COM 194014106 45,182 1,085,070 SH   SOLE   1,085,070 0 0
Colfax Corporation COM 194014106 2,082 50,000 SH   DFND 1 50,000 0 0
Comcast Corp- Class A COM 20030N101 8,119 211,000 SH   DFND 1 211,000 0 0
Costco COM 22160K105 821 5,000 SH   SOLE   5,000 0 0
Costco COM 22160K105 5,586 34,000 SH   DFND 1 34,000 0 0
Diageo PLC COM 25243Q205 43,405 328,500 SH   SOLE   328,500 0 0
Diageo PLC COM 25243Q205 134,944 1,021,300 SH   DFND 1 1,021,300 0 0
Discovery Communications COM 25470F302 20,827 1,028,000 SH   DFND 1 1,028,000 0 0
Disney COM 254687106 167,490 1,699,200 SH   DFND 1 1,699,200 0 0
Dollar Tree Inc COM 256746108 7,640 88,000 SH   DFND 1 88,000 0 0
Ecolab COM 278865100 29,426 228,800 SH   DFND 1 228,800 0 0
Exxon Corporation COM 30231G102 16,380 199,800 SH   SOLE   199,800 0 0
Exxon Corporation COM 30231G102 28,283 345,000 SH   DFND 1 345,000 0 0
Facebook COM 30303M102 18,539 108,500 SH   DFND 1 108,500 0 0
Factset Research COM 303075105 29,538 164,000 SH   DFND 1 164,000 0 0
Flowserve COM 34354P105 2,854 67,000 SH   DFND 1 67,000 0 0
General Dynamics COM 369550108 79,559 387,000 SH   DFND 1 387,000 0 0
General Electric COM 369604103 2,297 95,000 SH   DFND 1 95,000 0 0
Gilead Sciences Inc COM 375558103 2,674 33,000 SH   DFND 1 33,000 0 0
Goldman Sachs COM 38141G104 9,274 39,100 SH   DFND 1 39,100 0 0
Goodyear Tire & Rubber Co. COM 382550101 665 20,000 SH   DFND 1 20,000 0 0
Graham Holdings Co COM 384637104 3,043 5,200 SH   DFND 1 5,200 0 0
Hasbro, Inc COM 418056107 35,552 364,000 SH   DFND 1 364,000 0 0
Healthcare Services Group COM 421906108 2,968 55,000 SH   DFND 1 55,000 0 0
Heico Corp COM 422806109 337 3,750 SH   DFND 1 3,750 0 0
Heico Corp Class A COM 422806208 10,544 138,375 SH   DFND 1 138,375 0 0
Hershey Foods COM 427866108 2,631 24,100 SH   DFND 1 24,100 0 0
Hexcel Corp COM 428291108 4,938 86,000 SH   DFND 1 86,000 0 0
Home Depot COM 437076102 3,271 20,000 SH   SOLE   20,000 0 0
Home Depot COM 437076102 147,204 900,000 SH   DFND 1 900,000 0 0
Hormel Foods COM 440452100 611 19,000 SH   DFND 1 19,000 0 0
IBM COM 459200101 2,278 15,700 SH   DFND 1 15,700 0 0
Illinois Tool Works COM 452308109 34,031 230,000 SH   DFND 1 230,000 0 0
Intl Flavors & Fragrances COM 459506101 1,143 8,000 SH   DFND 1 8,000 0 0
Investors Title Company COM 461804106 38,196 213,300 SH   DFND 1 213,300 0 0
JP Morgan COM 46625H100 17,478 183,000 SH   DFND 1 183,000 0 0
John Deere COM 244199105 137,571 1,095,400 SH   DFND 1 1,095,400 0 0
Johnson and Johnson COM 478160104 7,151 55,000 SH   SOLE   55,000 0 0
Johnson and Johnson COM 478160104 72,260 555,800 SH   DFND 1 555,800 0 0
KKR & Co LLC COM 48248M102 19,659 967,000 SH   DFND 1 967,000 0 0
Liberty Braves Group A COM 531229706 1,081 42,600 SH   DFND 1 42,600 0 0
Liberty Braves Group C COM 531229888 2,522 99,788 SH   DFND 1 99,788 0 0
Liberty Broadband A COM 530307107 19,330 205,250 SH   DFND 1 205,250 0 0
Liberty Broadband Class C COM 530307305 16,402 172,113 SH   DFND 1 172,113 0 0
Liberty Global PLC COM G5480U104 4,205 124,000 SH   DFND 1 124,000 0 0
Liberty Global PLC Lilac COM G5480U138 350 14,720 SH   DFND 1 14,720 0 0
Liberty Media Group A COM 531229870 5,747 157,500 SH   DFND 1 157,500 0 0
Liberty Media Group C COM 531229854 9,884 259,500 SH   DFND 1 259,500 0 0
Liberty Sirius Group A COM 531229409 17,849 426,000 SH   DFND 1 426,000 0 0
Liberty Sirius Group C COM 531229607 21,856 522,000 SH   DFND 1 522,000 0 0
Live Nation COM 538034109 18,191 417,700 SH   DFND 1 417,700 0 0
Lowes COM 548661107 7,594 95,000 SH   SOLE   95,000 0 0
Lowes COM 548661107 37,971 475,000 SH   DFND 1 475,000 0 0
MSCI COM 55354G100 16,015 137,000 SH   DFND 1 137,000 0 0
Marriott International COM 571903202 166,302 1,508,269 SH   DFND 1 1,508,269 0 0
Marsh & McLennan COM 571748102 51,082 609,500 SH   DFND 1 609,500 0 0
Mastercard, Inc COM 57636Q104 25,713 182,100 SH   DFND 1 182,100 0 0
Maxim Integrated Products COM 57772K101 9,399 197,000 SH   DFND 1 197,000 0 0
McKesson Corp COM 58155Q103 4,009 26,100 SH   DFND 1 26,100 0 0
Merck COM 58933Y105 359 5,600 SH   DFND 1 5,600 0 0
Microchip Technology COM 595017104 718 8,000 SH   DFND 1 8,000 0 0
Microsoft Corp COM 594918104 23,241 312,000 SH   DFND 1 312,000 0 0
Monsanto Co COM 61166W101 47,533 396,700 SH   DFND 1 396,700 0 0
Moody's Corp COM 615369105 40,371 290,000 SH   DFND 1 290,000 0 0
Nike COM 654106103 18,977 366,000 SH   DFND 1 366,000 0 0
Norfolk Southern COM 655844108 30,349 229,500 SH   DFND 1 229,500 0 0
Novartis AG-Sponsored ADR COM 66987V109 318 3,700 SH   DFND 1 3,700 0 0
Novo-Nordisk A/S COM 670100205 51,761 1,075,000 SH   DFND 1 1,075,000 0 0
Oaktree Capital Group LLC COM 674001201 41,710 886,500 SH   DFND 1 886,500 0 0
Paccar COM 693718108 8,558 118,300 SH   DFND 1 118,300 0 0
Parker-Hannifin Corp COM 701094104 20,757 118,600 SH   DFND 1 118,600 0 0
Patterson Companies Inc. COM 703395103 6,493 168,000 SH   DFND 1 168,000 0 0
Paychex COM 704326107 8,994 150,000 SH   DFND 1 150,000 0 0
Penske Automotive Group COM 70959W103 3,425 72,000 SH   DFND 1 72,000 0 0
Pepsico COM 713448108 16,224 145,600 SH   DFND 1 145,600 0 0
Philip Morris International COM 718172109 12,711 114,500 SH   DFND 1 114,500 0 0
Praxair Inc. COM 74005P104 11,794 84,400 SH   DFND 1 84,400 0 0
Priceline Group Inc COM 741503403 366 200 SH   DFND 1 200 0 0
RLI Corporation COM 749607107 68,676 1,197,272 SH   DFND 1 1,197,272 0 0
Ritchie Bros COM 767744105 3,605 114,000 SH   DFND 1 114,000 0 0
Rockwell Automation Inc COM 773903109 22,775 127,800 SH   DFND 1 127,800 0 0
Rockwell Collins Inc COM 774341101 4,836 37,000 SH   DFND 1 37,000 0 0
Rollins, Inc. COM 775711104 20,472 443,700 SH   DFND 1 443,700 0 0
S&P Global COM 78409V104 22,978 147,000 SH   DFND 1 147,000 0 0
SEI Investments Co COM 784117103 18,697 306,200 SH   DFND 1 306,200 0 0
Schlumberger COM 806857108 279 4,000 SH   DFND 1 4,000 0 0
Sensata Technologies Holding COM N7902X106 8,076 168,000 SH   DFND 1 168,000 0 0
Starbucks Corp COM 855244109 2,793 52,000 SH   DFND 1 52,000 0 0
Stericycle Inc COM 858912108 16,616 232,000 SH   DFND 1 232,000 0 0
Synalloy Corporation COM 871565107 5,185 414,804 SH   SOLE   414,804 0 0
T.Rowe Price COM 74144T108 997 11,000 SH   SOLE   11,000 0 0
T.Rowe Price COM 74144T108 27,467 303,000 SH   DFND 1 303,000 0 0
Texas Instruments Inc COM 882508104 47,151 526,000 SH   DFND 1 526,000 0 0
The Carlyle Group COM 14309L102 18,809 797,000 SH   DFND 1 797,000 0 0
The Travelers Companies Inc COM 89417E109 38,594 315,000 SH   DFND 1 315,000 0 0
Tyson Foods COM 902494103 12,540 178,000 SH   DFND 1 178,000 0 0
Under Armour Inc-Class C COM 904311206 1,652 110,000 SH   DFND 1 110,000 0 0
Unilever PLC ADR COM 904767704 88,540 1,527,600 SH   DFND 1 1,527,600 0 0
Union Pacific COM 907818108 9,811 84,600 SH   DFND 1 84,600 0 0
United Health Group Inc COM 91324P102 129,849 663,000 SH   DFND 1 663,000 0 0
United Technologies COM 913017109 19,153 165,000 SH   DFND 1 165,000 0 0
VF Corp COM 918204108 1,958 30,800 SH   DFND 1 30,800 0 0
Verisk Analytics Inc COM 92345Y106 6,073 73,000 SH   DFND 1 73,000 0 0
Visa COM 92826C839 96,221 914,300 SH   DFND 1 914,300 0 0
W.P. Carey COM 92936U109 3,033 45,000 SH   SOLE   45,000 0 0
W.P. Carey COM 92936U109 61,001 905,200 SH   DFND 1 905,200 0 0
WR Berkley Corp COM 084423102 1,201 18,000 SH   DFND 1 18,000 0 0
Walgreens Boots Alliance Inc COM 931427108 164,865 2,135,000 SH   DFND 1 2,135,000 0 0
Watsco Inc COM 942622200 37,932 235,500 SH   DFND 1 235,500 0 0