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
ALPHABET INC CAP STK CL A 02079k305 5,398 3,080 SH   OTR 1 3,080 0 0
ALPHABET INC CAP STK CL A 02079k305 111,233 63,466 SH   SOLE   63,466 0 0
ALPHABET INC CAP STK CL C 02079k107 918 524 SH   SOLE   524 0 0
AMAZON COM INC COM 023135106 225 69 SH   SOLE   69 0 0
ANTERO MIDSTREAM CORP COM 03676b102 1,823 236,494 SH   OTR 1 236,494 0 0
ANTERO MIDSTREAM CORP COM 03676b102 39,798 5,161,899 SH   SOLE   5,161,899 0 0
ANTHEM INC COM 036752103 13,100 40,800 SH   OTR 1 40,800 0 0
ANTHEM INC COM 036752103 234,503 730,335 SH   SOLE   730,335 0 0
AON PLC SHS CL A g0403h108 14,290 67,637 SH   OTR 1 67,637 0 0
AON PLC SHS CL A g0403h108 302,115 1,429,997 SH   SOLE   1,429,997 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 310,965 1,341,118 SH   SOLE   1,341,118 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,618 54,420 SH   OTR 1 54,420 0 0
BK OF AMERICA CORP COM 060505104 440 14,532 SH   SOLE   14,532 0 0
COMCAST CORP NEW CL A 20030n101 1,629 31,094 SH   SOLE   31,094 0 0
CREDIT ACCEP CORP MICH COM 225310101 7,264 20,986 SH   OTR 1 20,986 0 0
CREDIT ACCEP CORP MICH COM 225310101 150,355 434,376 SH   SOLE   434,376 0 0
DOLLAR TREE INC COM 256746108 100,210 927,527 SH   SOLE   927,527 0 0
DOLLAR TREE INC COM 256746108 5,131 47,494 SH   OTR 1 47,494 0 0
FACEBOOK INC CL A 30303m102 3,611 13,219 SH   OTR 1 13,219 0 0
FACEBOOK INC CL A 30303m102 65,669 240,406 SH   SOLE   240,406 0 0
HCA HEALTHCARE INC COM 40412c101 13,953 84,844 SH   OTR 1 84,844 0 0
HCA HEALTHCARE INC COM 40412c101 252,830 1,537,332 SH   SOLE   1,537,332 0 0
JPMORGAN CHASE & CO COM 46625h100 14,029 110,400 SH   OTR 1 110,400 0 0
JPMORGAN CHASE & CO COM 46625h100 269,150 2,118,122 SH   SOLE   2,118,122 0 0
MARRIOTT INTL INC NEW CL A 571903202 382 2,897 SH   SOLE   2,897 0 0
MOODYS CORP COM 615369105 952 3,279 SH   SOLE   3,279 0 0
PRIMERICA INC COM 74164m108 10,441 77,962 SH   OTR 1 77,962 0 0
PRIMERICA INC COM 74164m108 213,223 1,592,048 SH   SOLE   1,592,048 0 0
PROGRESSIVE CORP COM 743315103 155,944 1,577,100 SH   SOLE   1,577,100 0 0
PROGRESSIVE CORP COM 743315103 7,208 72,900 SH   OTR 1 72,900 0 0
RAYMOND JAMES FINL INC COM 754730109 10,039 104,937 SH   OTR 1 104,937 0 0
RAYMOND JAMES FINL INC COM 754730109 187,012 1,954,764 SH   SOLE   1,954,764 0 0
RYANAIR HOLDINGS PLC SPONSORED ADS 783513203 22,543 204,975 SH   SOLE   204,975 0 0
SCHWAB CHARLES CORP COM 808513105 5,731 108,054 SH   OTR 1 108,054 0 0
SCHWAB CHARLES CORP COM 808513105 117,268 2,210,943 SH   SOLE   2,210,943 0 0
UNITEDHEALTH GROUP INC COM 91324p102 54,644 155,822 SH   SOLE   155,822 0 0
UNITEDHEALTH GROUP INC COM 91324p102 2,557 7,292 SH   OTR 1 7,292 0 0