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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   81,709 619,709 SH   SOLE   619,709 0 0
ALPHABET INC CL A COM 02079K305   1,411 10,780 SH   SOLE   10,780 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702   24,705 70,525 SH   SOLE   70,525 0 0
COSTCO WHOLESALE CORP COM 22160K105   81,919 144,999 SH   SOLE   144,999 0 0
FASTENAL CO COM 311900104   37,516 686,608 SH   SOLE   686,608 0 0
MARKEL CORP COM 570535104   53,556 36,371 SH   SOLE   36,371 0 0
MARTIN MARIETTA MATLS INC COM 573284106   44,557 108,548 SH   SOLE   108,548 0 0