| Berkshire Hathaway Inc | 24,669,778 | $11.2bn | 3.7% |
| TCI FUND MANAGEMENT LTD | 14,334,027 | $6.5bn | 12.3% |
| BlackRock, Inc. | 12,461,878 | $5.6bn | 0.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 9,757,973 | $4.4bn | 0.1% |
| STATE STREET CORP | 7,111,386 | $3.2bn | 0.1% |
| FMR LLC | 4,985,040 | $2.3bn | 0.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 4,006,816 | $1.8bn | 0.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,733,380 | $1.7bn | 0.1% |
| MORGAN STANLEY | 2,379,424 | $1.1bn | 0.1% |
| NORGES BANK | 2,372,048 | $1.1bn | 0.1% |
| PineStone Asset Management Inc. | 2,283,961 | $1.0bn | 6.4% |
| GOLDMAN SACHS GROUP INC | 2,126,435 | $963.1m | 0.1% |
| Fiera Capital Corp | 2,085,400 | $944.5m | 3.4% |
| Bank of New York Mellon Corp | 2,019,609 | $914.7m | 0.1% |
| Egerton Capital (UK) LLP | 1,704,229 | $771.9m | 7.5% |
| NORTHERN TRUST CORP | 1,671,990 | $757.3m | 0.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1,545,468 | $700.0m | 0.1% |
| PRINCIPAL FINANCIAL GROUP INC | 1,461,325 | $661.9m | 0.3% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1,420,099 | $643.2m | 0.1% |
| WINDACRE PARTNERSHIP LLC | 1,409,900 | $638.6m | 6.3% |
| Valley Forge Capital Management, LP | 1,317,188 | $596.6m | 19.1% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1,186,385 | $565.8m | 0.2% |
| Invesco Ltd. | 1,201,752 | $544.3m | 0.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,201,108 | $544.0m | 0.1% |
| AKRE CAPITAL MANAGEMENT LLC | 1,156,893 | $524.0m | 10.2% |