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
ACTIVISION BLIZZARD INC COM 00507v109 0 1 SH   SOLE   1 0 0
AMAZON COM INC COM 023135106 13,895 4,039 SH   SOLE   4,039 0 0
ANHEUSER BUSCH INBEV SA/NV SPONSORED ADR 03524a108 18,522 257,214 SH   SOLE   257,214 0 0
APPLE INC COM 037833100 198 1,448 SH   SOLE   1,448 0 0
AUTODESK INC COM 052769106 24,431 83,698 SH   SOLE   83,698 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,717 52,955 SH   SOLE   52,955 0 0
C H ROBINSON WORLDWIDE INC COM NEW 12541w209 178 1,900 SH   SOLE   1,900 0 0
CARMAX INC COM 143130102 212 1,640 SH   SOLE   1,640 0 0
CENTENE CORP DEL COM 15135b101 1 16 SH   SOLE   16 0 0
CHARTER COMMUNICATIONS INC N CL A 16119p108 41,315 57,266 SH   SOLE   57,266 0 0
COSTAR GROUP INC COM 22160n109 157 1,900 SH   SOLE   1,900 0 0
COSTCO WHSL CORP NEW COM 22160k105 150 380 SH   SOLE   380 0 0
DISCOVERY INC COM SER C 25470f302 18,593 641,589 SH   SOLE   641,589 0 0
ETSY INC COM 29786a106 12,588 61,156 SH   SOLE   61,156 0 0
FACTSET RESH SYS INC COM 303075105 176 525 SH   SOLE   525 0 0
FRP HLDGS INC COM 30292l107 6 100 SH   SOLE   100 0 0
LAM RESEARCH CORP COM 512807108 26,983 41,468 SH   SOLE   41,468 0 0
LANDSTAR SYS INC COM 515098101 205 1,300 SH   SOLE   1,300 0 0
MARKEL CORP COM 570535104 13,310 11,216 SH   SOLE   11,216 0 0
MARRIOTT INTL INC NEW CL A 571903202 38,957 285,358 SH   SOLE   285,358 0 0
MICROSOFT CORP COM 594918104 41,834 154,426 SH   SOLE   154,426 0 0
PATRIOT TRANSN HLDG INC COM 70338w105 500 44,205 SH   SOLE   44,205 0 0
PROGRESSIVE CORP COM 743315103 40,116 408,476 SH   SOLE   408,476 0 0
RAVEN INDS INC COM 754212108 14,918 257,866 SH   SOLE   257,866 0 0
RITCHIE BROS AUCTIONEERS COM 767744105 7,887 133,052 SH   SOLE   133,052 0 0
ROPER TECHNOLOGIES INC COM 776696106 11,190 23,799 SH   SOLE   23,799 0 0
SPDR S&P 500 ETF TR TR UNIT 78462f103 74 174 SH   SOLE   174 0 0
STURM RUGER & CO INC COM 864159108 234 2,600 SH   SOLE   2,600 0 0