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   299,982 3,400 SH   SOLE   0 0 3,400
ALPHABET INC. CL C COM 02079K107   30,186,452 340,206 SH   SOLE   81,593 0 258,613
AMAZON.COM COM 023135106   26,646,492 317,220 SH   SOLE   68,077 0 249,143
AON PLC COM G0403h108   30,134,031 100,400 SH   SOLE   25,369 0 75,031
APPLE INC. COM 037833100   493,344 3,797 SH   SOLE   0 0 3,797
ATLASSIAN CORPORATION CL A COM 049468101   2,524,058 19,615 SH   SOLE   4,931 0 14,684
BERKSHIRE HATHAWAY INC CL A COM 084670108   468,711 1 SH   SOLE   0 0 1
BERKSHIRE HATHAWAY INC CL B COM 084670702   308,900 1,000 SH   SOLE   0 0 1,000
COSTAR GROUP COM 22160N109   7,476,639 96,747 SH   SOLE   24,327 0 72,420
DATADOG INC COM 23804L103   4,612,215 62,751 SH   SOLE   15,514 0 47,237
FISERV COM 337738108   18,805,462 186,064 SH   SOLE   44,857 0 141,207
FLOOR & DECOR HOLDINGS COM 339750101   6,298,407 90,455 SH   SOLE   22,016 0 68,439
MASTERCARD COM 57636Q104   20,582,617 59,191 SH   SOLE   15,061 0 44,130
MICROSOFT CORP COM 594918104   28,856,816 120,327 SH   SOLE   29,465 0 90,862
NETFLIX COM 64110L106   4,895,032 16,600 SH   SOLE   4,107 0 12,493
VISA COM 92826C839   25,321,183 121,877 SH   SOLE   30,868 0 91,009
SPDR BLOOMBERG 1-3 MONTH T-BIL TR UNIT 78468R663   5,929,726 64,827 SH   SOLE   64,827 0 0