The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
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 STK CL C 02079K107 219,570 100,377 SH   SOLE   100,377 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 172,577 422 SH   SOLE   422 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 131,854 482,945 SH   SOLE   482,945 0 0
MARKEL CORP COM 570535104 71,685 55,430 SH   SOLE   55,430 0 0
LUMEN TECHNOLOGIES INC COM 550241103 39,382 3,609,701 SH   SOLE   3,609,701 0 0
PUBMATIC INC COM CL A 74467Q103 13,537 851,895 SH   SOLE   851,895 0 0