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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
Expires: July 31, 2015
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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 236,731 670 SH OTR 670 0 0
APPLE INC COM 037833100 217,599 752 SH OTR 752 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,780,903 21,545 SH OTR 21,545 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108 37,442,500 50 SH DFND 2 50 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 281,492,893 562,547 SH DFND 2 562,547 0 0
DIMENSIONAL ETF TRUST INTL CORE EQT MK 25434V203 839,768 20,358 SH OTR 20,358 0 0
INVESCO QQQ TR UNIT SER 1 46090E103 19,887,218 27,006 SH DFND 1 27,006 0 0
INVESCO QQQ TR UNIT SER 1 46090E103 64,153,695 87,118 SH DFND 2 87,118 0 0
ISHARES INC CORE MSCI EMKT 46434G103 6,142,337 74,147 SH DFND 1 74,147 0 0
ISHARES INC CORE MSCI EMKT 46434G103 20,321,398 245,309 SH DFND 2 245,309 0 0
ISHARES TR CORE S&P MCP ETF 464287507 2,609,865 33,846 SH OTR 33,846 0 0
ISHARES TR CORE S&P SCP ETF 464287804 1,370,978 9,244 SH OTR 9,244 0 0
ISHARES TR CORE MSCI TOTAL 46432F834 9,140,384 95,771 SH DFND 1 95,771 0 0
ISHARES TR CORE MSCI TOTAL 46432F834 30,220,885 316,648 SH DFND 2 316,648 0 0
ISHARES TR CORE S&P MCP ETF 464287507 36,386,050 471,872 SH DFND 1 471,872 0 0
ISHARES TR CORE S&P SCP ETF 464287804 20,949,974 141,258 SH DFND 1 141,258 0 0
ISHARES TR CORE S&P MCP ETF 464287507 117,929,721 1,529,370 SH DFND 2 1,529,370 0 0
ISHARES TR CORE S&P SCP ETF 464287804 71,160,473 479,809 SH DFND 2 479,809 0 0
NVIDIA CORPORATION COM 67066G104 294,332 1,471 SH OTR 1,471 0 0
PIMCO ETF TR COMMODITY STRAT 72201R593 214,475 6,993 SH OTR 6,993 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 8,651,746 12,597 SH OTR 12,597 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 160,885,243 234,250 SH DFND 1 234,250 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 523,367,077 762,026 SH DFND 2 762,026 0 0
VANGUARD INDEX FDS TOTAL STK MKT 922908769 16,211,452 43,810 SH DFND 1 43,810 0 0
VANGUARD INDEX FDS TOTAL STK MKT 922908769 53,691,694 145,097 SH DFND 2 145,097 0 0