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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   3,682 47,500 SH   SOLE   47,500 0 0
ALPHABET INC CAP STK CL A 02079K305   2,235 16,000 SH   SOLE   16,000 0 0
AMERICAN EXPRESS CO COM 025816109   39,341 210,000 SH   SOLE   210,000 0 0
BANK AMERICA CORP COM 060505104   25,853 767,845 SH   SOLE   767,845 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   16,279 30 SH   SOLE   30 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   50,146 140,600 SH   SOLE   140,600 0 0
DAILY JOURNAL CORP COM 233912104   3,919 11,500 SH   SOLE   11,500 0 0
FERRARI N V COM N3167Y103   26,953 80,000 SH   SOLE   80,000 0 0
MASTERCARD INCORPORATED CL A 57636Q104   28,043 65,750 SH   SOLE   65,750 0 0
MICRON TECHNOLOGY INC COM 595112103   17,068 200,000 SH   SOLE   200,000 0 0
MOODYS CORP COM 615369105   10,545 27,000 SH   SOLE   27,000 0 0
SERITAGE GROWTH PPTYS CL A 81752R100   4,675 500,000 SH   SOLE   500,000 0 0