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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 (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STKCL C COM 02079K107 68,872 31,485 SH   SOLE   31,485 0 0
ALPHABET INC CL A COM 02079K305 1,172 538 SH   SOLE   538 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702 24,556 89,941 SH   SOLE   89,941 0 0
COSTCO WHOLESALE CORP COM 22160K105 70,967 148,069 SH   SOLE   148,069 0 0
FASTENAL CO COM 311900104 33,138 663,814 SH   SOLE   663,814 0 0
MARKEL CORP COM 570535104 48,568 37,555 SH   SOLE   37,555 0 0
MARTIN MARIETTA MATLS INC COM 573284106 32,623 109,018 SH   SOLE   109,018 0 0