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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
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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
ALPHABET INC CAP STKCL C COM 02079K107 61,042 634,867 SH   SOLE   634,867 0 0
ALPHABET INC CL A COM 02079K305 1,031 10,780 SH   SOLE   10,780 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702 23,048 86,316 SH   SOLE   86,316 0 0
COSTCO WHOLESALE CORP COM 22160K105 70,192 148,626 SH   SOLE   148,626 0 0
FASTENAL CO COM 311900104 31,166 676,935 SH   SOLE   676,935 0 0
MARKEL CORP COM 570535104 41,123 37,929 SH   SOLE   37,929 0 0
MARTIN MARIETTA MATLS INC COM 573284106 35,697 110,829 SH   SOLE   110,829 0 0