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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 25,120 23,240 SH   SOLE   23,240 0 0
ALPHABET INC CL A COM 02079K305 363 335 SH   SOLE   335 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW COM 084670702 19,298 90,527 SH   SOLE   90,527 0 0
COSTCO WHOLESALE CORP COM 22160K105 31,613 119,627 SH   SOLE   119,627 0 0
FASTENAL CO COM 311900104 14,822 454,812 SH   SOLE   454,812 0 0
ITAU UNIBANCO HLDG SA NS SPONSORED ADR REP ADR 465562106 21,225 2,253,150 SH   SOLE   2,253,150 0 0
MARKEL CORP COM 570535104 20,810 19,099 SH   SOLE   19,099 0 0
MARTIN MARIETTA MATLS INC COM 573284106 19,749 85,822 SH   SOLE   85,822 0 0