| BERKSHIRE HATHAWAY INC | 24,669,778 | $12,602,556 |
| VANGUARD GROUP INC | 15,272,967 | $7,802,195 |
| BlackRock, Inc. | 14,029,797 | $7,167,122 |
| TCI Fund Management Ltd | 13,308,479 | $6,798,636 |
| STATE STREET CORP | 7,134,082 | $3,644,446 |
| FMR LLC | 5,476,294 | $2,797,565 |
| GEODE CAPITAL MANAGEMENT, LLC | 3,965,480 | $2,019,551 |
| PineStone Asset Management Inc. | 2,375,768 | $1,213,661 |
| Fiera Capital Corp | 2,371,939 | $1,211,705 |
| MORGAN STANLEY | 2,370,601 | $1,211,023 |
| Bank of New York Mellon Corp | 2,277,238 | $1,163,327 |
| NORGES BANK | 2,147,599 | $1,097,101 |
| AKRE CAPITAL MANAGEMENT LLC | 1,735,231 | $886,443 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1,716,304 | $877 |
| NORTHERN TRUST CORP | 1,685,201 | $860,885 |
| GOLDMAN SACHS GROUP INC | 1,486,143 | $759,196 |
| UBS ASSET MANAGEMENT AMERICAS INC | 1,400,658 | $715,526 |
| Valley Forge Capital Management, LP | 1,317,292 | $672,939 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1,310,605 | $669,523 |
| Legal & General Group Plc | 1,202,111 | $614,098 |
| BARCLAYS PLC | 1,149,939 | $587,446 |
| WINDACRE PARTNERSHIP LLC | 1,118,900 | $571,590 |
| Rothschild & Co Wealth Management UK Ltd | 1,117,251 | $570,748 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,111,130 | $567,621 |
| Invesco Ltd. | 1,008,844 | $515,368 |
| Longview Partners (Guernsey) LTD | 966,467 | $493,720 |
| Amundi | 907,375 | $463,533 |
| Ninety One UK Ltd | 835,862 | $427,000 |
| DIMENSIONAL FUND ADVISORS LP | 823,852 | $420,901 |
| ALTAROCK PARTNERS LLC | 814,503 | $416,089 |
| BANK OF AMERICA CORP /DE/ | 792,749 | $404,976 |
| ROYAL BANK OF CANADA | 789,838 | $403,486 |
| Egerton Capital (UK) LLP | 773,409 | $395,096 |
| AKO CAPITAL LLP | 736,568 | $376 |
| Allen Investment Management LLC | 719,920 | $367,771 |
| Nuveen, LLC | 709,525 | $362,461 |
| DEUTSCHE BANK AG\ | 701,008 | $358,110 |
| BAILLIE GIFFORD & CO | 687,046 | $350,977 |
| JANUS HENDERSON GROUP PLC | 675,076 | $344,865 |
| Evergreen Quality Fund GP, Ltd. | 674,400 | $344,517 |
| STIFEL FINANCIAL CORP | 673,495 | $344,059 |
| NEUBERGER BERMAN GROUP LLC | 663,473 | $338,935 |
| PRINCIPAL FINANCIAL GROUP INC | 627,123 | $320,396 |
| Russell Investments Group, Ltd. | 574,017 | $293,442 |
| APG Asset Management N.V. | 568,997 | $247,496 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 564,572 | $288,412 |
| MARSHFIELD ASSOCIATES | 563,557 | $287,893 |
| NORDEA INVESTMENT MANAGEMENT AB | 552,736 | $284,040 |
| National Pension Service | 514,377 | $262,769 |
| JPMORGAN CHASE & CO | 495,596 | $253,175 |
| Local Pensions Partnership Investment Ltd | 465,868 | $238,049 |
| HSBC HOLDINGS PLC | 451,710 | $231,211 |
| CANTILLON CAPITAL MANAGEMENT LLC | 445,400 | $227,533 |
| TD Asset Management Inc | 440,704 | $225,134 |
| Voya Investment Management LLC | 428,936 | $219,122 |
| Canoe Financial LP | 425,922 | $217,582 |
| FIRST TRUST ADVISORS LP | 417,782 | $213,424 |
| UBS Group AG | 414,028 | $211,506 |
| Sarasin & Partners LLP | 412,752 | $210,854 |
| ENVESTNET ASSET MANAGEMENT INC | 402,958 | $205,851 |
| Sumitomo Mitsui Trust Holdings, Inc. | 364,487 | $186,198 |
| DF DENT & CO INC | 351,928 | $179,783 |
| Skye Global Management LP | 346,500 | $177,010 |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 330,018 | $164,672 |
| ACADIAN ASSET MANAGEMENT LLC | 307,920 | $157 |
| RHUMBLINE ADVISERS | 306,522 | $156,587 |
| Employees Provident Fund Board | 300,000 | $153,255 |
| AVIVA PLC | 299,729 | $153,117 |
| AMERIPRISE FINANCIAL INC | 296,093 | $151,262 |
| CITADEL ADVISORS LLC | 295,473 | $150,942 |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | 294,153 | $150,268 |
| Point72 Asset Management, L.P. | 288,878 | $147,573 |
| Newport Trust Company, LLC | 277,462 | $141,741 |
| NATIONAL BANK OF CANADA /FI/ | 271,923 | $138,913 |
| Qube Research & Technologies Ltd | 270,786 | $138,331 |
| BLS CAPITAL FONDSMAEGLERSELSKAB A/S | 270,049 | $137,955 |
| CANADA PENSION PLAN INVESTMENT BOARD | 269,054 | $137,446 |
| KING LUTHER CAPITAL MANAGEMENT CORP | 263,396 | $134,556 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 245,477 | $125,402 |
| CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | 243,276 | $124,278 |
| Holocene Advisors, LP | 241,557 | $123,399 |
| Manning & Napier Advisors LLC | 238,629 | $123,073 |
| HighTower Advisors, LLC | 238,004 | $121,584 |
| BRISTOL JOHN W & CO INC /NY/ | 233,042 | $119,050 |
| SEI INVESTMENTS CO | 230,129 | $117,558 |
| GENERATION INVESTMENT MANAGEMENT LLP | 225,909 | $115,406 |
| Assenagon Asset Management S.A. | 218,843 | $111,796 |
| CONGRESS ASSET MANAGEMENT CO /MA | 217,729 | $111,227 |
| MARKEL GROUP INC. | 213,890 | $109,266 |
| CHILTON INVESTMENT CO INC. | 211,023 | $107,801 |
| RAYMOND JAMES FINANCIAL INC | 209,863 | $107,894 |
| TWO SIGMA INVESTMENTS, LP | 209,262 | $106,901 |
| FRANKLIN RESOURCES INC | 208,491 | $106,508 |
| NEW YORK STATE COMMON RETIREMENT FUND | 198,358 | $101,331 |
| BNP PARIBAS ARBITRAGE, SA | 190,915 | $97,529 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 189,370 | $96,822 |
| Mitsubishi UFJ Trust & Banking Corp | 184,215 | $94,117 |
| YCG, LLC | 181,005 | $92,466 |
| PFA Pension, Forsikringsaktieselskab | 168,551 | $86,930 |
| Robeco Institutional Asset Management B.V. | 168,023 | $85,835 |
| 1308 other institutions | 17,775,840 | $7,991,678 |