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
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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 78,688 27,194 SH   SOLE   27,194 0 0
ALPHABET INC CL A COM 02079K305 971 335 SH   SOLE   335 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702 27,654 92,489 SH   SOLE   92,489 0 0
COSTCO WHOLESALE CORP COM 22160K105 77,039 135,703 SH   SOLE   135,703 0 0
FASTENAL CO COM 311900104 32,701 510,471 SH   SOLE   510,471 0 0
MARKEL CORP COM 570535104 45,436 36,820 SH   SOLE   36,820 0 0
MARTIN MARIETTA MATLS INC COM 573284106 42,756 97,059 SH   SOLE   97,059 0 0