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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
ALIBABA GROUP HLDG LTD SPONSORED ADS 01609W102   4,854 47,500 SH   SOLE   47,500 0 0
ALPHABET INC CAP STK CL A 02079K305   1,660 16,000 SH   SOLE   16,000 0 0
AMERICAN EXPRESS CO COM 025816109   34,451 210,000 SH   SOLE   210,000 0 0
BANK AMERICA CORP COM 060505104   21,960 767,845 SH   SOLE   767,845 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   13,968 30 SH   SOLE   30 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   43,413 140,600 SH   SOLE   140,600 0 0
DAILY JOURNAL CORP COM 233912104   3,277 11,500 SH   SOLE   11,500 0 0
FERRARI N V COM N3167Y103   21,617 80,000 SH   SOLE   80,000 0 0
MASTERCARD INCORPORATED CL A 57636Q104   23,894 65,750 SH   SOLE   65,750 0 0
MICRON TECHNOLOGY INC COM 595112103   12,068 200,000 SH   SOLE   200,000 0 0
MOODYS CORP COM 615369105   8,263 27,000 SH   SOLE   27,000 0 0
SERITAGE GROWTH PPTYS CL A 81752R100   3,935 500,000 SH   SOLE   500,000 0 0