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 FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC. CL A COM 02079K305   352,682 3,400 SH   SOLE   0 0 3,400
ALPHABET INC. CL C COM 02079K107   35,914,563 345,332 SH   SOLE   87,305 0 258,027
AMAZON.COM COM 023135106   33,234,281 321,757 SH   SOLE   73,242 0 248,515
AON PLC COM G0403h108   32,104,064 101,824 SH   SOLE   26,701 0 75,123
APPLE INC. COM 037833100   626,125 3,797 SH   SOLE   0 0 3,797
BERKSHIRE HATHAWAY INC CL A COM 084670108   465,600 1 SH   SOLE   0 0 1
BERKSHIRE HATHAWAY INC CL B COM 084670702   308,770 1,000 SH   SOLE   0 0 1,000
COSTAR GROUP COM 22160N109   6,808,990 98,896 SH   SOLE   26,217 0 72,679
DATADOG INC COM 23804L103   4,642,320 63,891 SH   SOLE   16,695 0 47,196
FISERV COM 337738108   21,460,893 189,869 SH   SOLE   48,276 0 141,593
FLOOR & DECOR HOLDINGS COM 339750101   9,076,707 92,412 SH   SOLE   23,695 0 68,717
MASTERCARD COM 57636Q104   22,008,537 60,561 SH   SOLE   16,227 0 44,334
MICROSOFT CORP COM 594918104   35,293,049 122,418 SH   SOLE   31,333 0 91,085
MONGODB INC COM 60937P106   9,129,912 39,164 SH   SOLE   10,557 0 28,607
NETFLIX COM 64110L106   11,270,940 32,624 SH   SOLE   8,820 0 23,804
TAIWAN SEMICONDUCTOR MANUF SPO COM 874039100   10,792,552 116,024 SH   SOLE   31,454 0 84,570
UNITEDHEALTH GROUP COM 91324p102   10,208,891 21,602 SH   SOLE   5,776 0 15,826
VISA COM 92826C839   28,093,595 124,606 SH   SOLE   33,221 0 91,385
SPDR BLOOMBERG 1-3 MONTH T-BIL TR UNIT 78468R663   10,978,091 119,561 SH   SOLE   119,561 0 0