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
Estimated average burden
hours per response: 23.8
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
AON PLC SHS CL A G0403H108   49,933,180 144,650 SH   SOLE   144,650 0 0
ACCENTURE PLC IRELAND SHS CLASS A G1151C101   31,475,160 102,000 SH   SOLE   102,000 0 0
LIBERTY GLOBAL PLC SHS CL C G5480U120   25,882,005 1,456,500 SH   SOLE   1,456,500 0 0
LINDE PLC SHS G54950103   22,388,450 58,750 SH   SOLE   58,750 0 0
LIBERTY LATIN AMERICA LTD COM CL C G9001E128   12,490,380 1,449,000 SH   SOLE   1,449,000 0 0
ACI WORLDWIDE INC COM 004498101   5,394,995 232,844 SH   SOLE   232,844 0 0
ADOBE SYSTEMS INC COM 00724F101   29,339,400 60,000 SH   SOLE   60,000 0 0
ALPHABET INC CAP STK CL C 02079K107   124,683,779 1,030,700 SH   SOLE   1,030,700 0 0
AMAZON COM INC COM 023135106   56,054,800 430,000 SH   SOLE   430,000 0 0
ANALOG DEVICES INC COM 032654105   46,793,362 240,200 SH   SOLE   240,200 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   126,903,150 372,150 SH   SOLE   372,150 0 0
BLACK KNIGHT INC COM 09215C105   18,599,922 311,400 SH   SOLE   311,400 0 0
CARMAX INC COM 143130102   63,570,150 759,500 SH   SOLE   759,500 0 0
CHARTER COMMUNICATIONS INC CL A 16119P108   16,227,100 44,171 SH   SOLE   44,171 0 0
COMCAST CORP NEW CL A 20030N101   2,684,130 64,600 SH   SOLE   64,600 0 0
COSTAR GROUP INC COM 22160N109   95,052,000 1,068,000 SH   SOLE   1,068,000 0 0
DANAHER CORPORATION COM 235851102   74,474,400 310,310 SH   SOLE   310,310 0 0
DIAGEO PLC SPON ADR NEW 25243Q205   2,550,156 14,700 SH   SOLE   14,700 0 0
META PLATFORMS INC CL A 30303M102   72,175,470 251,500 SH   SOLE   251,500 0 0
FIDELITY NATL INFORMATION SV COM 31620M106   36,731,050 671,500 SH   SOLE   671,500 0 0
FORTIVE CORP COM 34959J108   3,050,616 40,800 SH   SOLE   40,800 0 0
GARTNER INC COM 366651107   49,060,916 140,050 SH   SOLE   140,050 0 0
GUIDEWIRE SOFTWARE INC COM 40171V100   16,402,848 215,600 SH   SOLE   215,600 0 0
HEICO CORP NEW CL A 422806208   25,743,860 183,100 SH   SOLE   183,100 0 0
HONEYWELL INTL INC COM 438516106   2,386,250 11,500 SH   SOLE   11,500 0 0
IDEX CORP COM 45167R104   14,379,368 66,800 SH   SOLE   66,800 0 0
CORECARD CORPORATION COM 45816D100   12,680,000 500,000 SH   SOLE   500,000 0 0
JPMORGAN CHASE & CO COM 46625H100   3,417,840 23,500 SH   SOLE   23,500 0 0
LKQ CORP COM 501889208   24,001,413 411,900 SH   SOLE   411,900 0 0
LABORATORY CORP AMER HLDGS COM NEW 50540R409   64,736,773 268,250 SH   SOLE   268,250 0 0
LIBERTY BROADBAND CORP COM SER A 530307107   15,148,700 190,000 SH   SOLE   190,000 0 0
LIBERTY BROADBAND CORP COM SER C 530307305   64,007,890 799,000 SH   SOLE   799,000 0 0
LIBERTY MEDIA CORP DEL COM A SIRIUSXM 531229409   10,171,100 310,000 SH   SOLE   310,000 0 0
LIBERTY MEDIA CORP DEL COM C SIRIUSXM 531229607   58,521,240 1,788,000 SH   SOLE   1,788,000 0 0
LIVE NATION ENTERTAINMENT INC COM 538034109   5,557,710 61,000 SH   SOLE   61,000 0 0
MARKEL CORP COM 570535104   45,451,295 32,860 SH   SOLE   32,860 0 0
MARTIN MARIETTA MATLS INC COM 573284106   30,517,709 66,100 SH   SOLE   66,100 0 0
MASTERCARD INCORPORATED CL A 57636Q104   83,910,555 213,350 SH   SOLE   213,350 0 0
MICROSOFT CORP COM 594918104   19,649,158 57,700 SH   SOLE   57,700 0 0
ORACLE CORP COM 68389X105   34,000,195 285,500 SH   SOLE   285,500 0 0
PERIMETER SOLUTIONS SA COM L7579L106   19,852,200 3,228,000 SH   SOLE   3,228,000 0 0
RWT HLDGS INC NOTE 5.750%10/0 749772AD1   3,062,407 3,500,000 PRN   SOLE   3,500,000 0 0
REDWOOD TR INC NOTE 4.750% 8/1 758075AC9   848,967 850,000 PRN   SOLE   850,000 0 0
REDWOOD TR INC NOTE 5.625% 7/1 758075AD7   8,629,119 9,000,000 PRN   SOLE   9,000,000 0 0
ROPER TECHNOLOGIES INC COM 776696106   49,185,840 102,300 SH   SOLE   102,300 0 0
S&P GLOBAL INC COM 78409V104   29,615,749 73,875 SH   SOLE   73,875 0 0
SALESFORCE COM INC COM 79466L302   26,407,500 125,000 SH   SOLE   120,000 0 0
TEXAS INSTRS INC COM 882508104   30,621,582 170,101 SH   SOLE   170,101 0 0
THERMO FISHER SCIENTIFIC INC COM 883556102   54,105,475 103,700 SH   SOLE   103,700 0 0
VISA INC COM CL A 92826C839   88,865,016 374,200 SH   SOLE   374,200 0 0
VULCAN MATLS CO COM 929160109   68,871,920 305,500 SH   SOLE   305,500 0 0