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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 STK CL C 02079K107   150,232 1,693,140 SH   SOLE   1,693,140 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   197,796 422 SH   SOLE   422 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   149,182 482,945 SH   SOLE   482,945 0 0
MARKEL CORP COM 570535104   73,028 55,430 SH   SOLE   55,430 0 0
LUMEN TECHNOLOGIES INC COM 550241103   18,843 3,609,701 SH   SOLE   3,609,701 0 0
PUBMATIC INC COM CL A 74467Q103   20,839 1,626,811 SH   SOLE   1,626,811 0 0