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
ARMSTRONG WORLD INDUSTRIES COM 04247X102 6,886 164,748 SH   SOLE NONE 140,884 23,864 0
AUTONATION INC COM 05329W102 16,776 344,835 SH   SOLE NONE 297,335 47,500 0
BANK OF AMERICA CORP COM 060505104 33,397 1,511,220 SH   SOLE NONE 1,299,820 211,400 0
BERKSHIRE HATHAWAY INC CL A CL A 084670108 10,497 43 SH   SOLE NONE 26 17 0
BERKSHIRE HATHAWAY INC CL B CL B NEW 084670702 180,193 1,105,618 SH   SOLE NONE 967,716 137,902 0
CIMPRESS N V SHS EURO N20146101 135,047 1,474,156 SH   SOLE NONE 1,252,964 221,192 0
COPART INC COM 217204106 6,558 118,355 SH   SOLE NONE 102,845 15,510 0
DESWELL INDUSTRIES INC COM 250639101 179 100,981 SH   SOLE NONE 100,981 0 0
HEICO CORP NEW - CL A CL A 422806208 2,102 30,961 SH   SOLE NONE 30,961 0 0
INTERACTIVE BROKERS GRO-CL A COM 45841N107 67,996 1,862,419 SH   SOLE NONE 1,600,268 262,151 0
LEUCADIA NATIONAL CORP COM 527288104 94,186 4,051,042 SH   SOLE NONE 3,478,982 572,060 0
MOODYS CORP COM 615369105 13,875 147,193 SH   SOLE NONE 126,628 20,565 0
MSC INDUSTRIAL DIRECT CO-A CL A 553530106 57,572 623,151 SH   SOLE NONE 536,039 87,112 0
NOW INC/DE COM 67011P100 59,172 2,890,690 SH   SOLE NONE 2,494,077 396,613 0
RAVEN INDUSTRIES INC COM 754212108 573 22,739 SH   SOLE NONE 21,739 1,000 0
SENSATA TECHNOLOGIES HOLDING SHS N7902X106 4,655 119,522 SH   SOLE NONE 119,522 0 0
VALMONT INDUSTRIES COM 920253101 2,657 21,560 SH   SOLE NONE 18,860 2,700 0
WELLS FARGO & COMPANY COM 949746101 34,893 666,568 SH   SOLE NONE 578,643 87,925 0