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
Alleghany Corp Del COM 017175100 156,958 301,582 SH   SOLE None 301,582 0 0
Comcast Corp New CL A 20030N101 462,376 9,995,158 SH   SOLE None 9,995,158 0 0
Berkshire Hathaway Inc Del CL B NEW 084670702 609,220 2,860,993 SH   SOLE None 2,860,993 0 0
Becton Dickinson & Co COM 075887109 448,343 1,926,867 SH   SOLE None 1,926,867 0 0
Danaher Corporation COM 235851102 540,260 2,508,988 SH   SOLE None 2,508,988 0 0
Fiserv Inc COM 337738108 721,350 7,000,000 SH   SOLE None 7,000,000 0 0
Home Depot Inc COM 437076102 166,148 598,278 SH   SOLE None 598,278 0 0
Intuit COM 461202103 781,570 2,395,911 SH   SOLE None 2,395,911 0 0
Martin Marietta Matls Inc COM 573284106 157,576 669,511 SH   SOLE None 669,511 0 0
Microsoft Corp COM 594918104 972,722 4,624,744 SH   SOLE None 4,624,744 0 0
Sherwin Williams Co COM 824348106 256,345 367,920 SH   SOLE None 367,920 0 0
Texas Instrs Inc COM 882508104 237,596 1,663,952 SH   SOLE None 1,663,952 0 0
Thermo Fisher Scientific Inc COM 883556102 273,290 618,975 SH   SOLE None 618,975 0 0
Intercontinental Exchange In COM 45866F104 185,801 1,857,081 SH   SOLE None 1,857,081 0 0
Waste Connections Inc COM 94106B101 302,243 2,911,783 SH   SOLE None 2,911,783 0 0
Alphabet Inc CAP STK CL C 02079K107 403,380 274,483 SH   SOLE None 274,483 0 0
Schwab Charles Corp COM 808513105 171,433 4,731,802 SH   SOLE None 4,731,802 0 0
EOG Res Inc COM 26875P101 120,884 3,363,492 SH   SOLE None 3,363,492 0 0
Fidelity Natl Information SV COM 31620M106 625,643 4,250,000 SH   SOLE None 4,250,000 0 0
Air Prods & Chems Inc COM 009158106 720,149 2,417,742 SH   SOLE None 2,417,742 0 0
Autodesk Inc COM 052769106 491,237 2,126,477 SH   SOLE None 2,126,477 0 0
Marsh & Mclennan Cos Inc COM 571748102 415,211 3,619,976 SH   SOLE None 3,619,976 0 0
Nasdaq Inc COM 631103108 119,642 975,000 SH   SOLE None 975,000 0 0
Agilent Technologies Inc COM 00846U101 376,002 3,725,000 SH   SOLE None 3,725,000 0 0
Agnico Eagle Mines Ltd COM 008474108 217,051 2,726,424 SH   SOLE None 2,726,424 0 0
Analog Devices Inc COM 032654105 143,534 1,229,517 SH   SOLE None 1,229,517 0 0
T Mobile US Inc COM 872590104 815,946 7,134,890 SH   SOLE None 7,134,890 0 0
Alcon AG ORD SHS H01301128 146,646 2,575,000 SH   SOLE None 2,575,000 0 0
ICU Med Inc COM 44930G107 82,242 450,000 SH   SOLE None 450,000 0 0
Transunion COM 89400J107 315,488 3,750,000 SH   SOLE None 3,750,000 0 0
Cintas Corp COM 172908105 326,827 981,963 SH   SOLE None 981,963 0 0
Jacobs Engr Group Inc COM 469814107 160,028 1,725,000 SH   SOLE None 1,725,000 0 0
Mcdonalds Corp COM 580135101 415,495 1,893,000 SH   SOLE None 1,893,000 0 0
Unitedhealth Group Inc COM 91324P102 381,918 1,225,000 SH   SOLE None 1,225,000 0 0
Activison Blizzard Inc COM 00507V109 299,737 3,702,737 SH   SOLE None 3,702,737 0 0
Amazon Com Inc COM 023135106 630,319 200,182 SH   SOLE None 200,182 0 0
S&P Global Inc COM 78409V104 124,354 344,853 SH   SOLE None 344,853 0 0
CBRE Group Inc CL A 12504L109 75,327 1,603,731 SH   SOLE None 1,603,731 0 0
Costar Group Inc COM 22160N109 137,459 162,000 SH   SOLE None 162,000 0 0
Charter Communications Inc N CL A 16119P108 167,494 268,273 SH   SOLE None 268,273 0 0
Keysight Technologies Inc COM 49338L103 83,167 841,942 SH   SOLE None 841,942 0 0
PayPal Hldgs Inc COM 70450Y103 200,021 1,015,182 SH   SOLE None 1,015,182 0 0
Thomson Reuters Corp. COM NEW 884903709 18,200 228,158 SH   SOLE None 228,158 0 0