| 0.56% | % of Shares Held by All Insider |
| 96.90% | % of Shares Held by Institutions |
| 97.44% | % of Float Held by Institutions |
| 918 | Number of Institutions Holding Shares |
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| Berkshire Hathaway, Inc | 24,669,778 | Mar 30, 2019 | 13.01% | 4,467,450,098 |
| Vanguard Group, Inc. (The) | 17,297,223 | Mar 30, 2019 | 9.12% | 3,132,354,113 |
| Blackrock Inc. | 12,278,489 | Mar 30, 2019 | 6.48% | 2,223,511,573 |
| State Street Corporation | 7,230,374 | Mar 30, 2019 | 3.81% | 1,309,348,427 |
| Fiera Capital Corporation | 6,406,787 | Mar 30, 2019 | 3.38% | 1,160,205,057 |
| TCI Fund Management Ltd | 6,022,912 | Mar 30, 2019 | 3.18% | 1,090,689,134 |
| Baillie Gifford and Company | 6,012,312 | Mar 30, 2019 | 3.17% | 1,088,769,580 |
| Akre Capital Management, LLC | 5,682,371 | Mar 30, 2019 | 3.00% | 1,029,020,564 |
| Massachusetts Financial Services Co. | 5,229,619 | Mar 30, 2019 | 2.76% | 947,031,704 |
| Capital International Investors | 4,999,003 | Mar 30, 2019 | 2.64% | 905,269,453 |
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| Professionally Managed Portf-Akre Focus Fund | 5,161,390 | Apr 29, 2019 | 2.72% | 1,014,832,501 |
| Vanguard Total Stock Market Index Fund | 4,352,054 | Dec 30, 2018 | 2.30% | 609,461,642 |
| Vanguard Mid-Cap Index Fund | 3,896,358 | Dec 30, 2018 | 2.06% | 545,645,974 |
| Vanguard 500 Index Fund | 3,159,022 | Dec 30, 2018 | 1.67% | 442,389,440 |
| New Perspective Fund Inc | 2,989,700 | Mar 30, 2019 | 1.58% | 541,404,773 |
| MFS Series Trust I-MFS Value Fund | 2,012,141 | Nov 29, 2018 | 1.06% | 320,071,268 |
| SPDR S&P 500 ETF Trust | 1,793,836 | May 30, 2019 | 0.95% | 328,056,727 |
| Oakmark Fund | 1,706,000 | Dec 30, 2018 | 0.90% | 238,908,240 |
| Vanguard Institutional Index Fund-Institutional Index Fund | 1,579,947 | Dec 30, 2018 | 0.83% | 221,255,777 |
| Mainstay Large Cap Growth Fund | 1,461,650 | Oct 30, 2018 | 0.77% | 212,640,842 |