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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STK CL C 02079K107   228,145,002 1,286,121 SH   SOLE   1,279,802 0 6,319
ALPHABET INC CAP STK CL A 02079K305   417,016,397 2,366,319 SH   SOLE   2,362,559 0 3,760
AMENTUM HOLDINGS INC COM 023939101   57,649,558 2,441,743 SH   SOLE   2,435,978 0 5,765
AMERICAN EXPRESS CO COM 025816109   297,289 932 SH   SOLE   932 0 0
ATAI LIFE SCIENCES NV SHS N0731H103   92,225 42,112 SH   SOLE   42,112 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   85,269,600 117 SH   SOLE   117 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   158,769,553 326,841 SH   SOLE   326,405 0 436
BIO-TECHNE CORP COM 09073M104   7,841,855 152,417 SH   SOLE   152,309 0 108
CAPITAL ONE FINL CORP COM 14040H105   450,416,324 2,117,016 SH   SOLE   2,111,727 0 5,289
CARMAX INC COM 143130102   422,079 6,280 SH   SOLE   6,280 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108   158,051,669 386,614 SH   SOLE   385,443 0 1,171
COPA HOLDINGS SA CL A P31076105   280,973 2,555 SH   SOLE   2,555 0 0
CREDIT ACCEP CORP MICH COM 225310101   297,519,856 584,025 SH   SOLE   582,501 0 1,524
DOLLAR GEN CORP NEW COM 256677105   245,231 2,144 SH   SOLE   2,144 0 0
ELEVANCE HEALTH INC COM 036752103   426,165,969 1,095,655 SH   SOLE   1,092,850 0 2,805
EQUITABLE HLDGS INC COM 29452E101   2,284,841 40,728 SH   SOLE   40,728 0 0
EXPEDITORS INTL WASH INC COM 302130109   2,502,304 21,902 SH   SOLE   21,902 0 0
FERGUSON ENTERPRISES INC COMMON STOCK NEW 31488V107   217,750 1,000 SH   SOLE   1,000 0 0
GROUP 1 AUTOMOTIVE INC COM 398905109   1,462,979 3,350 SH   SOLE   3,350 0 0
ICON PLC SHS G4705A100   248,455,217 1,708,183 SH   SOLE   1,703,697 0 4,486
INTERCONTINENTAL EXCHANGE IN COM 45866F104   508,024,210 2,768,977 SH   SOLE   2,761,727 0 7,250
JACOBS SOLUTIONS INC COM 46982L108   140,930,700 1,072,124 SH   SOLE   1,071,452 0 672
LIBERTY BROADBAND CORP COM SER C 530307305   185,868,055 1,889,287 SH   SOLE   1,884,630 0 4,657
LIBERTY BROADBAND CORP COM SER A 530307107   65,422,701 668,807 SH   SOLE   667,514 0 1,293
LIBERTY MEDIA CORP DEL COM LBTY ONE S C 531229755   586,347,724 5,610,983 SH   SOLE   5,597,601 0 13,382
LIBERTY MEDIA CORP DEL COM LBTY ONE S A 531229771   71,062,651 748,343 SH   SOLE   746,605 0 1,738
LITHIA MTRS INC COM 536797103   917,519 2,716 SH   SOLE   2,636 0 80
META PLATFORMS INC CL A 30303M102   293,433,584 397,558 SH   SOLE   396,610 0 948
MICRON TECHNOLOGY INC COM 595112103   266,467 2,162 SH   SOLE   2,162 0 0
MICROSOFT CORP COM 594918104   342,715 689 SH   SOLE   689 0 0
MSA SAFETY INC COM 553498106   158,997,195 949,067 SH   SOLE   946,539 0 2,528
NETFLIX INC COM 64110L106   811,513 606 SH   SOLE   606 0 0
REPUBLIC SVCS INC COM 760759100   201,480 817 SH   SOLE   817 0 0
RIMINI STR INC DEL COM 76674Q107   143,090 37,955 SH   SOLE   37,955 0 0
S&P GLOBAL INC COM 78409V104   279,991 531 SH   SOLE   531 0 0
SCHWAB CHARLES CORP COM 808513105   602,076,519 6,598,822 SH   SOLE   6,581,680 0 17,142
SINCLAIR INC CL A 829242106   248,193 17,959 SH   SOLE   17,959 0 0
STELLANTIS N.V SHS N82405106   397,960 39,677 SH   SOLE   39,677 0 0
TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADS 874039100   434,335,570 1,917,681 SH   SOLE   1,912,648 0 5,033
UNITEDHEALTH GROUP INC COM 91324P102   238,170,065 763,439 SH   SOLE   761,439 0 2,000
VANGUARD INDEX FDS TOTAL STK MKT 922908769   775,325 2,551 SH   SOLE   2,551 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363   387,396 682 SH   SOLE   682 0 0
VANGUARD STAR FDS VG TL INTL STK F 921909768   322,098 4,662 SH   SOLE   4,662 0 0