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 (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ADOBE INC COM 00724F101 727,254 1,529,870 SH   SOLE   1,529,870 0 0
ALARM COM HLDGS INC COM 011642105 170,916 1,978,658 SH   SOLE   1,978,658 0 0
AMERICAN TOWER CORP NEW COM 03027X100 1,677,461 7,016,902 SH   SOLE   7,016,902 0 0
ANSYS INC COM 03662Q105 207,051 609,764 SH   SOLE   609,764 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,585 17,949 SH   SOLE   17,949 0 0
BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 580,284 13,040,095 SH   SOLE   13,040,095 0 0
CARMAX INC COM 143130102 943,684 7,113,557 SH   SOLE   7,113,557 0 0
COLONY CAP INC NEW CL A COM 19626G108 68,071 10,504,800 SH   SOLE   10,504,800 0 0
COSTAR GROUP INC COM 22160N109 802,789 976,760 SH   SOLE   976,760 0 0
DANAHER CORP DEL COM 235851102 372,575 1,655,300 SH   SOLE   1,655,300 0 0
DOLLAR TREE INC COM 256746108 410,704 3,588,186 SH   SOLE   3,588,186 0 0
GOOSEHEAD INS INC COM CL A 38267D109 26,084 243,366 SH   SOLE   243,366 0 0
KKR & CO L P DEL COM UNITS 48251w104 719,747 14,733,824 SH   SOLE   14,733,824 0 0
LIVE NATION ENTERTAINMENT IN COM 538034109 462,985 5,469,400 SH   SOLE   5,469,400 0 0
MARKEL CORP COM 570535104 15,551 13,646 SH   SOLE   13,646 0 0
MASTERCARD INC CL A 57636Q104 2,089,020 5,867,210 SH   SOLE   5,867,210 0 0
MOODYS CORP COM 615369105 1,679,934 5,625,845 SH   SOLE   5,625,845 0 0
O REILLY AUTOMOTIVE INC NEW COM 67103H107 802,395 1,581,854 SH   SOLE   1,581,854 0 0
OLLIES BARGAIN OUTLT HLDGS I COM 681116109 43,500 500,000 SH   SOLE   500,000 0 0
ROPER INDS INC NEW COM 776696106 699,980 1,735,458 SH   SOLE   1,735,458 0 0
SBA COMMUNICATIONS CORP COM 78410G104 634,237 2,285,126 SH   SOLE   2,285,126 0 0
THREDUP INC CL A 88556E102 4,666 200,000 SH   SOLE   200,000 0 0
VERISK ANALYTICS INC CL A 92345Y106 432,393 2,447,186 SH   SOLE   2,447,186 0 0
VISA INC COM CL A 92826C839 1,110,468 5,244,738 SH   SOLE   5,244,738 0 0