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   46,898,423 144,650 SH   SOLE   144,650 0 0
ACCENTURE PLC IRELAND SHS CLASS A G1151C101   31,325,220 102,000 SH   SOLE   102,000 0 0
LIBERTY GLOBAL PLC SHS CL C G5480U120   26,661,440 1,436,500 SH   SOLE   1,436,500 0 0
LINDE PLC SHS G54950103   21,875,563 58,750 SH   SOLE   58,750 0 0
LIBERTY LATIN AMERICA LTD COM CL C G9001E128   9,967,440 1,221,500 SH   SOLE   1,221,500 0 0
ACI WORLDWIDE INC COM 004498101   6,429,600 285,000 SH   SOLE   285,000 0 0
ADOBE SYSTEMS INC COM 00724F101   29,319,250 57,500 SH   SOLE   57,500 0 0
ALPHABET INC CAP STK CL C 02079K107   129,634,920 983,200 SH   SOLE   983,200 0 0
AMAZON COM INC COM 023135106   50,212,400 395,000 SH   SOLE   395,000 0 0
ANALOG DEVICES INC COM 032654105   42,056,618 240,200 SH   SOLE   240,200 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   126,791,085 361,950 SH   SOLE   361,950 0 0
CARMAX INC COM 143130102   50,890,235 719,500 SH   SOLE   719,500 0 0
CHARTER COMMUNICATIONS INC CL A 16119P108   22,474,802 51,100 SH   SOLE   51,100 0 0
COMCAST CORP NEW CL A 20030N101   2,864,364 64,600 SH   SOLE   64,600 0 0
COSTAR GROUP INC COM 22160N109   72,814,830 947,000 SH   SOLE   947,000 0 0
DANAHER CORPORATION COM 235851102   81,317,256 327,760 SH   SOLE   327,760 0 0
DIAGEO PLC SPON ADR NEW 25243Q205   2,610,650 17,500 SH   SOLE   17,500 0 0
EQUIFAX INC COM 294429105   26,744,280 146,000 SH   SOLE   146,000 0 0
META PLATFORMS INC CL A 30303M102   69,431,068 231,275 SH   SOLE   231,275 0 0
FIDELITY NATL INFORMATION SV COM 31620M106   27,717,905 501,500 SH   SOLE   501,500 0 0
FORTIVE CORP COM 34959J108   3,025,728 40,800 SH   SOLE   40,800 0 0
GARTNER INC COM 366651107   48,122,581 140,050 SH   SOLE   140,050 0 0
GUIDEWIRE SOFTWARE INC COM 40171V100   19,404,000 215,600 SH   SOLE   215,600 0 0
HEICO CORP NEW CL A 422806208   23,686,026 183,300 SH   SOLE   183,300 0 0
HONEYWELL INTL INC COM 438516106   2,087,562 11,300 SH   SOLE   11,300 0 0
IDEX CORP COM 45167R104   13,916,538 66,900 SH   SOLE   66,900 0 0
CORECARD CORPORATION COM 45816D100   10,200,000 510,000 SH   SOLE   510,000 0 0
JPMORGAN CHASE & CO COM 46625H100   3,407,970 23,500 SH   SOLE   23,500 0 0
LKQ CORP COM 501889208   20,410,498 412,250 SH   SOLE   412,250 0 0
LABORATORY CORP AMER HLDGS COM NEW 50540R409   56,967,518 283,350 SH   SOLE   283,350 0 0
LIBERTY BROADBAND CORP COM SER A 530307107   12,727,400 140,000 SH   SOLE   140,000 0 0
LIBERTY BROADBAND CORP COM SER C 530307305   60,773,460 665,500 SH   SOLE   665,500 0 0
LIBERTY MEDIA CORP DEL COM LBTY LIV S C 531229722   15,729,000 490,000 SH   SOLE   490,000 0 0
LIBERTY MEDIA CORP DEL COM LBTY LIV S A 531229748   2,473,800 77,500 SH   SOLE   77,500 0 0
LIBERTY MEDIA CORP DEL COM LBTY SRM S C 531229789   45,522,480 1,788,000 SH   SOLE   1,788,000 0 0
LIBERTY MEDIA CORP DEL COM LBTY SRM S A 531229813   7,889,500 310,000 SH   SOLE   310,000 0 0
LIVE NATION ENTERTAINMENT INC COM 538034109   5,065,440 61,000 SH   SOLE   61,000 0 0
MARKEL CORP COM 570535104   42,981,983 29,190 SH   SOLE   29,190 0 0
MARTIN MARIETTA MATLS INC COM 573284106   25,449,760 62,000 SH   SOLE   62,000 0 0
MASTERCARD INCORPORATED CL A 57636Q104   84,467,399 213,350 SH   SOLE   213,350 0 0
MICROSOFT CORP COM 594918104   18,218,775 57,700 SH   SOLE   57,700 0 0
MICROCHIP TECHNOLOGY INC. COM 595017104   20,261,780 259,600 SH   SOLE   259,600 0 0
ORACLE CORP COM 68389X105   30,240,160 285,500 SH   SOLE   285,500 0 0
PERIMETER SOLUTIONS SA COM L7579L106   16,502,900 3,635,000 SH   SOLE   3,635,000 0 0
RWT HLDGS INC NOTE 5.750%10/0 749772AD1   3,256,261 3,500,000 SH   SOLE   3,500,000 0 0
REDWOOD TR INC NOTE 5.625% 7/1 758075AD7   8,910,028 9,000,000 SH   SOLE   9,000,000 0 0
ROPER TECHNOLOGIES INC COM 776696106   49,541,844 102,300 SH   SOLE   102,300 0 0
S&P GLOBAL INC COM 78409V104   26,081,139 71,375 SH   SOLE   71,375 0 0
SALESFORCE COM INC COM 79466L302   25,347,500 125,000 SH   SOLE   125,000 0 0
TEXAS INSTRS INC COM 882508104   27,047,760 170,101 SH   SOLE   170,101 0 0
THERMO FISHER SCIENTIFIC INC COM 883556102   63,311,744 125,080 SH   SOLE   125,080 0 0
VISA INC COM CL A 92826C839   86,069,742 374,200 SH   SOLE   374,200 0 0
VULCAN MATLS CO COM 929160109   61,171,656 302,800 SH   SOLE   302,800 0 0