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
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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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
Advance Auto Parts COM 00751y106   27,281,941 185,554 SH   SOLE   185,554 0 0
AerCap Holdings COM n00985106   50,309,129 862,639 SH   SOLE   862,639 0 0
Alphabet COM 38259p706   70,666,652 796,423 SH   SOLE   796,423 0 0
Alphabet Class A COM 38259p508   286,924 3,252 SH   SOLE   3,252 0 0
Amazon Com COM 023135106   211,680 2,520 SH   SOLE   2,520 0 0
Amgen COM 031162100   977,021 3,720 SH   SOLE   3,720 0 0
Apple COM 037833100   4,492,979 34,580 SH   SOLE   34,580 0 0
Bank of America COM 060505104   3,896,943 117,661 SH   SOLE   117,661 0 0
Berkshire Hathaway 'A' COM 084670108   21,560,704 46 SH   SOLE   46 0 0
Berkshire Hathaway COM 084670702   351,767,307 1,138,774 SH   SOLE   1,138,774 0 0
Berkshire Hathaway COM 084670702   184,567,750 597,500 SH Call SOLE   597,500 0 0
Berkshire Hathaway COM 084670702   249,776,540 808,600 SH Call SOLE   808,600 0 0
Berkshire Hathaway COM 084670702   274,303,200 888,000 SH Call SOLE   888,000 0 0
Berkshire Hathaway COM 084670702   56,374,250 182,500 SH Call SOLE   182,500 0 0
Berkshire Hathaway COM 084670702   3,027,220 9,800 SH Call SOLE   9,800 0 0
Berkshire Hathaway COM 084670702   2,224,080 7,200 SH Call SOLE   7,200 0 0
Berkshire Hathaway COM 084670702   21,252,320 68,800 SH Call SOLE   68,800 0 0
Berkshire Hathaway COM 084670702   8,927,210 28,900 SH Call SOLE   28,900 0 0
Berkshire Hathaway COM 084670702   1,019,370 3,300 SH Call SOLE   3,300 0 0
Berkshire Hathaway COM 084670702   1,297,380 4,200 SH Call SOLE   4,200 0 0
Berkshire Hathaway COM 084670702   864,920 2,800 SH Call SOLE   2,800 0 0
Berkshire Hathaway COM 084670702   710,470 2,300 SH Call SOLE   2,300 0 0
Berkshire Hathaway COM 084670702   67,371,090 218,100 SH Call SOLE   218,100 0 0
Berkshire Hathaway COM 084670702   123,405,550 399,500 SH Call SOLE   399,500 0 0
Berkshire Hathaway COM 084670702   3,861,250 12,500 SH Call SOLE   12,500 0 0
Berkshire Hathaway COM 084670702   7,598,940 24,600 SH Call SOLE   24,600 0 0
Berkshire Hathaway COM 084670702   22,240,800 72,000 SH Call SOLE   72,000 0 0
Berkshire Hathaway COM 084670702   6,178,000 20,000 SH Call SOLE   20,000 0 0
Berkshire Hathaway COM 084670702   8,463,860 27,400 SH Call SOLE   27,400 0 0
Berkshire Hathaway COM 084670702   3,027,220 9,800 SH Call SOLE   9,800 0 0
Berkshire Hathaway COM 084670702   15,939,240 51,600 SH Call SOLE   51,600 0 0
Berkshire Hathaway COM 084670702   2,224,080 7,200 SH Call SOLE   7,200 0 0
Berkshire Hathaway COM 084670702   1,359,160 4,400 SH Call SOLE   4,400 0 0
Berkshire Hathaway COM 084670702   2,409,420 7,800 SH Call SOLE   7,800 0 0
Berkshire Hathaway COM 084670702   2,007,850 6,500 SH Call SOLE   6,500 0 0
Berkshire Hathaway COM 084670702   216,230 700 SH Call SOLE   700 0 0
Berkshire Hathaway COM 084670702   5,065,960 16,400 SH Call SOLE   16,400 0 0
Berkshire Hathaway COM 084670702   494,240 1,600 SH Call SOLE   1,600 0 0
Berkshire Hathaway COM 084670702   926,700 3,000 SH Call SOLE   3,000 0 0
Berkshire Hathaway COM 084670702   12,881,130 41,700 SH Call SOLE   41,700 0 0
Biglari Cl A COM 08986r408   1,615,016 2,344 SH   SOLE   2,344 0 0
Bread Financial Holdings COM 018581108   14,435,789 383,319 SH   SOLE   383,319 0 0
Brookfield Asset Management COM 113004105   285,324 9,952 SH   SOLE   9,952 0 0
Brookfield Corp. COM 11271J107   84,945,652 2,700,116 SH   SOLE   2,700,116 0 0
CarMax COM 143130102   32,034,171 526,099 SH   SOLE   526,099 0 0
Cardlytics COM 14161W105   61,268 10,600 SH   SOLE   10,600 0 0
Caterpillar Tractor COM 149123101   411,325 1,717 SH   SOLE   1,717 0 0
Chevron COM 166764100   304,595 1,697 SH   SOLE   1,697 0 0
Cimpress COM 045290255   11,684,866 423,211 SH   SOLE   423,211 0 0
Conocophillips COM 20825c104   401,672 3,404 SH   SOLE   3,404 0 0
Disney (Walt) COM 254687106   3,374,680 38,843 SH   SOLE   38,843 0 0
Fastenal COM 311900104   308,053 6,510 SH   SOLE   6,510 0 0
FedEx COM 31428x106   35,663,947 205,912 SH   SOLE   205,912 0 0
General Electric COM 369604103   217,184 2,592 SH   SOLE   2,592 0 0
Goldman Sachs COM 38141g104   422,357 1,230 SH   SOLE   1,230 0 0
Illinois Tool Works COM 452308109   242,330 1,100 SH   SOLE   1,100 0 0
LKQ Corp COM 501889208   67,205,437 1,258,293 SH   SOLE   1,258,293 0 0
Markel COM 570535104   70,609,122 53,594 SH   SOLE   53,594 0 0
Metro Bank PLC COM G60640102   61,859 42,500 SH   SOLE   42,500 0 0
Microsoft COM 594918104   1,421,893 5,929 SH   SOLE   5,929 0 0
Quest Diagnostics COM 74834l100   28,034,075 179,200 SH   SOLE   179,200 0 0
Suncor COM 867224107   60,169,795 1,896,306 SH   SOLE   1,896,306 0 0
Trupanion Inc. COM 898202106   731,962 15,400 SH   SOLE   15,400 0 0
Verizon COM 92343v104   509,371 12,928 SH   SOLE   12,928 0 0
Wayfair COM 94419l101   6,038,802 183,606 SH   SOLE   183,606 0 0
Wells Fargo COM 949746101   32,475,906 786,532 SH   SOLE   786,532 0 0
IShares Exponential Technologi ETF 46434V381   397,656 8,400 SH   SOLE   8,400 0 0
SPDR S&P 500 ETF 78462f103   312,063 816 SH   SOLE   816 0 0