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 A 02079K305   572,918,389 2,356,719 SH   SOLE   2,352,959 0 3,760
ALPHABET INC CAP STK CL C 02079K107   305,550,765 1,254,571 SH   SOLE   1,248,252 0 6,319
AMENTUM HOLDINGS INC COM 023939101   58,048,765 2,423,748 SH   SOLE   2,417,983 0 5,765
AMERICAN EXPRESS CO COM 025816109   309,573 932 SH   SOLE   932 0 0
APPLE INC COM 037833100   226,875 891 SH   SOLE   891 0 0
ATAI LIFE SCIENCES NV SHS N0731H103   222,772 42,112 SH   SOLE   42,112 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   88,241,400 117 SH   SOLE   117 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   162,159,792 322,552 SH   SOLE   322,116 0 436
BIO-TECHNE CORP COM 09073M104   81,984,991 1,473,755 SH   SOLE   1,469,987 0 3,768
BLACKROCK INC COM 09290D101   216,852 186 SH   SOLE   186 0 0
CAPITAL ONE FINL CORP COM 14040H105   446,019,200 2,098,124 SH   SOLE   2,092,835 0 5,289
CARMAX INC COM 143130102   200,524 4,469 SH   SOLE   4,469 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108   102,733,010 373,432 SH   SOLE   372,261 0 1,171
COPA HOLDINGS SA CL A P31076105   303,585 2,555 SH   SOLE   2,555 0 0
CREDIT ACCEP CORP MICH COM 225310101   270,099,861 578,459 SH   SOLE   576,935 0 1,524
DOLLAR GEN CORP NEW COM 256677105   224,270 2,170 SH   SOLE   2,170 0 0
ELEVANCE HEALTH INC FORMERLY COM 036752103   467,969,203 1,448,283 SH   SOLE   1,444,379 0 3,904
EQUITABLE HLDGS INC COM 29452E101   2,063,496 40,636 SH   SOLE   40,636 0 0
FERGUSON ENTERPRISES INC COMMON STOCK NEW 31488V107   224,580 1,000 SH   SOLE   1,000 0 0
GCI LIBERTY INC COM SER A 36164V602   5,002,326 133,200 SH   SOLE   132,943 0 257
GCI LIBERTY INC COM SER C 36164V800   13,963,951 374,670 SH   SOLE   373,740 0 930
GROUP 1 AUTOMOTIVE INC COM 398905109   1,579,411 3,610 SH   SOLE   3,610 0 0
ICON PLC SHS G4705A100   297,673,950 1,700,994 SH   SOLE   1,696,508 0 4,486
INTERCONTINENTAL EXCHANGE IN COM 45866F104   462,189,668 2,743,291 SH   SOLE   2,736,041 0 7,250
JACOBS SOLUTIONS INC COM 46982L108   1,401,041 9,349 SH   SOLE   9,349 0 0
KASPI KZ JSC SPONSORED ADS 48581R205   303,196 3,712 SH   SOLE   3,712 0 0
LIBERTY BROADBAND CORP COM SER A 530307107   42,377,903 669,160 SH   SOLE   667,867 0 1,293
LIBERTY BROADBAND CORP COM SER C 530307305   119,089,019 1,874,237 SH   SOLE   1,869,580 0 4,657
LIBERTY MEDIA CORP DEL COM LBTY ONE S A 531229771   70,682,758 742,310 SH   SOLE   740,572 0 1,738
LIBERTY MEDIA CORP DEL COM LBTY ONE S C 531229755   581,680,901 5,568,989 SH   SOLE   5,555,607 0 13,382
LITHIA MTRS INC COM 536797103   858,256 2,716 SH   SOLE   2,636 0 80
META PLATFORMS INC CL A 30303M102   179,204,142 244,021 SH   SOLE   243,123 0 898
MICRON TECHNOLOGY INC COM 595112103   361,746 2,162 SH   SOLE   2,162 0 0
MICROSOFT CORP COM 594918104   356,868 689 SH   SOLE   689 0 0
MSA SAFETY INC COM 553498106   293,428,562 1,705,286 SH   SOLE   1,700,701 0 4,585
NETFLIX INC COM 64110L106   724,148 604 SH   SOLE   604 0 0
RIMINI STR INC DEL COM 76674Q107   173,820 37,141 SH   SOLE   37,141 0 0
S&P GLOBAL INC COM 78409V104   258,443 531 SH   SOLE   531 0 0
SAP SE SPON ADR 803054204   12,291,660 46,000 SH   SOLE   46,000 0 0
SCHWAB CHARLES CORP COM 808513105   602,946,609 6,315,561 SH   SOLE   6,298,419 0 17,142
SINCLAIR INC CL A 829242106   271,181 17,959 SH   SOLE   17,959 0 0
SMITH DOUGLAS HOMES CORP COM SHS CL A 83207R107   215,611 12,209 SH   SOLE   12,209 0 0
STELLANTIS N.V SHS N82405106   255,103 27,313 SH   SOLE   27,313 0 0
TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADS 874039100   525,545,858 1,881,721 SH   SOLE   1,876,688 0 5,033
UNITEDHEALTH GROUP INC COM 91324P102   261,814,402 758,223 SH   SOLE   756,223 0 2,000
VANGUARD STAR FDS VG TL INTL STK F 921909768   389,411 5,301 SH   SOLE   5,301 0 0
VANGUARD INDEX FDS TOTAL STK MKT 922908769   868,666 2,647 SH   SOLE   2,647 0 0