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

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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
Allied World Assurance Co Hldg COM H01531104 74,365 1,999,599 SH   SOLE   1,997,194 0 2,270
Arch Capital Group Ltd COM G0450A105 122,765 1,760,066 SH   SOLE   1,757,651 0 2,415
Berkshire Hathaway Class A COM 084670108 6,923 35 SH   SOLE   35 0 0
Berkshire Hathaway Class B COM 084670702 20,059 151,917 SH   SOLE   151,627 0 290
Crimson Wine Group Ltd COM 22662X100 1,563 177,596 SH   SOLE   177,596 0 0
Cummins Inc COM 231021106 59,115 671,685 SH   SOLE   671,180 0 455
Deere & Co. COM 244199105 67,704 887,693 SH   SOLE   886,523 0 1,105
Expeditors International of Washington COM 302130109 52,936 1,173,742 SH   SOLE   1,172,347 0 1,330
Fastenal Co COM 311900104 78,179 1,915,219 SH   SOLE   1,912,829 0 2,265
Goldman Sachs Group Inc COM 38141G104 96,310 534,372 SH   SOLE   533,677 0 670
Leucadia National Corporation COM 527288104 34,982 2,011,636 SH   SOLE   2,009,471 0 2,165
Mastercard Inc Class A COM 57636Q104 61,992 636,728 SH   SOLE   636,083 0 645
Moody's Corp. COM 615369105 123,208 1,227,901 SH   SOLE   1,226,116 0 1,715
NVR Inc. COM 62944T105 83,041 50,542 SH   SOLE   50,458 0 84
Ross Stores Inc COM 778296103 49,189 914,127 SH   SOLE   912,972 0 1,095
Strayer Education Inc COM 863236105 30,408 505,794 SH   SOLE   505,074 0 680
Toll Brothers Inc COM 889478103 62,625 1,880,637 SH   SOLE   1,877,989 0 2,648
US Bancorp COM 902973304 56,074 1,314,142 SH   SOLE   1,312,917 0 1,225
Union Pacific Corporation COM 907818108 20,979 268,277 SH   SOLE   267,737 0 540
Visa Inc Cl A COM 92826C839 59,591 768,421 SH   SOLE   767,481 0 940
Waters Corp COM 941848103 18,897 140,418 SH   SOLE   140,418 0 0
Wells Fargo & Company COM 949746101 103,218 1,898,783 SH   SOLE   1,896,369 0 2,414
YUM! Brands Inc COM 988498101 75,916 1,039,239 SH   SOLE   1,037,195 0 2,022