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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
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
ALPHABET INC CAP STKCL C COM 02079K107   64,035 615,719 SH   SOLE   615,719 0 0
ALPHABET INC CL A COM 02079K305   1,118 10,780 SH   SOLE   10,780 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702   23,801 77,083 SH   SOLE   77,083 0 0
COSTCO WHOLESALE CORP COM 22160K105   70,461 141,809 SH   SOLE   141,809 0 0
FASTENAL CO COM 311900104   35,336 655,106 SH   SOLE   655,106 0 0
MARKEL CORP COM 570535104   47,734 37,368 SH   SOLE   37,368 0 0
MARTIN MARIETTA MATLS INC COM 573284106   37,711 106,211 SH   SOLE   106,211 0 0