The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete. | |||||||||||||||||
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F INFORMATION TABLE |
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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 |
| AMAZON INC | COM | 023135106 | 573 | 1,120 | SH | DFND | 1 | 0 | 1,120 | 0 | |
| BAIDU INC | SPON ADR REP A | 056752108 | 9,619 | 70,000 | SH | DFND | 1 | 0 | 70,000 | 0 | |
| BAIDU INC | SPON ADR REP A | 056752108 | 11,680 | 85,000 | SH | DFND | 1 | 0 | 85,000 | 0 | |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 | 9,762 | 50 | SH | DFND | 1 | 0 | 50 | 0 | |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 | 91,958 | 471 | SH | DFND | 1 | 0 | 471 | 0 | |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | 4,144 | 31,780 | SH | DFND | 1 | 0 | 31,780 | 0 | |
| CREDIT ACCEP CORP MICH | COM | 225310101 | 10,927 | 55,503 | SH | DFND | 1 | 0 | 55,503 | 0 | |
| DANAHER CORP DEL | COM | 235851102 | 937 | 11,000 | SH | DFND | 1 | 0 | 11,000 | 0 | |
| DEERE & CO | COM | 244199105 | 8,880 | 120,000 | SH | DFND | 1 | 0 | 120,000 | 0 | |
| DOLBY LABORATORIES INC | COM | 25659T107 | 4,430 | 135,886 | SH | DFND | 1 | 0 | 135,886 | 0 | |
| DOLBY LABORATORIES INC | COM | 25659T107 | 391 | 12,000 | SH | DFND | 1 | 0 | 12,000 | 0 | |
| GOOGLE INC | CL A | 38259P508 | 19,151 | 30,000 | SH | DFND | 1 | 0 | 30,000 | 0 | |
| GOOGLE INC | CL A | 38259P508 | 1,149 | 1,800 | SH | DFND | 1 | 0 | 1,800 | 0 | |
| GOOGLE INC | CL A | 38259P508 | 1,468 | 2,300 | SH | DFND | 1 | 0 | 2,300 | 0 | |
| GOOGLE INC | CL A | 38259P508 | 25,331 | 39,680 | SH | DFND | 1 | 0 | 39,680 | 0 | |
| GOOGLE INC | CL C | 38259P706 | 21,158 | 34,775 | SH | DFND | 1 | 0 | 34,775 | 0 | |
| LEUCADIA NATL CORP | COM | 527288104 | 1,114 | 55,000 | SH | DFND | 1 | 0 | 55,000 | 0 | |
| LEUCADIA NATL CORP | COM | 527288104 | 466 | 23,000 | SH | DFND | 1 | 0 | 23,000 | 0 | |
| MARKEL CORP | COM | 570535104 | 1,864 | 2,325 | SH | DFND | 1 | 0 | 2,325 | 0 | |
| MICROSOFT CORP | COM | 594918104 | 974 | 22,000 | SH | DFND | 1 | 0 | 22,000 | 0 | |
| MICROSOFT CORP | COM | 594918104 | 443 | 10,000 | SH | DFND | 1 | 0 | 10,000 | 0 | |
| MICROSOFT CORP | COM | 594918104 | 27,884 | 630,000 | SH | DFND | 1 | 0 | 630,000 | 0 | |
| MORNINGSTAR INC | COM | 617700109 | 401 | 5,000 | SH | DFND | 1 | 0 | 5,000 | 0 | |
| NATIONAL OILWELL VARCO INC | COM | 637071101 | 1,092 | 29,000 | SH | DFND | 1 | 0 | 29,000 | 0 | |
| NATIONAL OILWELL VARCO INC | COM | 637071101 | 772 | 20,500 | SH | DFND | 1 | 0 | 20,500 | 0 | |
| NOW INC | COM | 67011P100 | 740 | 50,000 | SH | DFND | 1 | 0 | 50,000 | 0 | |
| NOW INC | COM | 67011P100 | 740 | 50,000 | SH | DFND | 1 | 0 | 50,000 | 0 | |
| NOW INC | COM | 67011P100 | 9,894 | 668,500 | SH | DFND | 1 | 0 | 668,500 | 0 | |
| TRUPANION INC | COM | 898202106 | 2,265 | 300,000 | SH | DFND | 1 | 0 | 300,000 | 0 | |
| VERISIGN INC | COM | 93243E102 | 706 | 10,000 | SH | DFND | 1 | 0 | 10,000 | 0 | |
| VERISIGN INC | COM | 93243E102 | 28,224 | 400,000 | SH | DFND | 1 | 0 | 400,000 | 0 | |