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
AMETEK INC COM 031100100 40,928 675,716 SH   DFND   675,716 0 0
BANK OF THE OZARKS INC COM 063904106 54,991 1,173,272 SH   DFND   1,173,272 0 0
BALCHEM CORP COM 057665200 176 2,266 SH   DFND   2,266 0 0
BERKSHIRE HATHAWAY CL B 084670702 117,096 691,361 SH   DFND   691,361 0 0
BROOKFIELD ASSET MGT CL A 112585104 507 12,938 SH   DFND   12,938 0 0
CARMAX INC COM 143130102 56,773 900,309 SH   DFND   900,309 0 0
DISNEY WALT COMPANY COM 254687106 36,887 347,176 SH   DFND   347,176 0 0
FASTENAL CO COM 311900104 177 4,077 SH   DFND   4,077 0 0
FIVE BELOW INC COM 33829M101 293 5,939 SH   DFND   5,939 0 0
FORTUNE BRANDS HOME & SEC COM 34964C106 20,391 312,550 SH   DFND   312,550 0 0
LIBERTY MEDIA-C LIB FORM CL C 531229854 21,755 594,065 SH   DFND   594,065 0 0
ALPHABET INC CL-A CL A 02079K305 5,486 5,901 SH   DFND   5,901 0 0
ALPHABET INC CL-C CL C 02079K107 20,843 22,936 SH   DFND   22,936 0 0
HANESBRANDS INC COM 410345102 284 12,264 SH   DFND   12,264 0 0
HEICO CORP CLASS A CL A 422806208 17,428 280,875 SH   DFND   280,875 0 0
JP MORGAN CHASE & CO COM 46625H100 1,131 12,379 SH   DFND   12,379 0 0
LKQ CORP COM 501889208 35,571 1,079,555 SH   DFND   1,079,555 0 0
SOUTHWEST AIRLINES CO COM 844741108 246 3,961 SH   DFND   3,961 0 0
M & T BANK CORP COM 55261F104 24,815 153,224 SH   DFND   153,224 0 0
MARKEL CORP HOLDING COM 570535104 29,182 29,904 SH   DFND   29,904 0 0
MASTERCARD INC CL A 57636Q104 183 1,504 SH   DFND   1,504 0 0
MOHAWK INDS INC COM 608190104 25,356 104,910 SH   DFND   104,910 0 0
O'REILLY AUTOMOTIVE COM 67103H107 19,659 89,872 SH   DFND   89,872 0 0
STANTEC INC COM 85472N109 535 21,329 SH   SOLE   21,329 0 0
UNION PACIFIC CORP COM 907818108 27,244 250,151 SH   DFND   250,151 0 0
VISA INC CL A 92826C839 31,679 337,801 SH   DFND   337,801 0 0
WELLS FARGO CO COM 949746101 29,014 523,628 SH   DFND   523,628 0 0