Major holders
Currency in USDBreakdown
| 0.38% | % of shares held by all insiders |
| 85.17% | % of shares held by institutions |
| 85.49% | % of float held by institutions |
| 1,408 | Number of institutions holding shares |
Top institutional holders
| Holder | Shares | Date reported | % out | Value |
|---|
| Berkshire Hathaway, Inc | 71,886,963 | 30 Mar 2020 | 11.27% | 2,050,935,054 |
| Vanguard Group, Inc. (The) | 45,484,188 | 30 Mar 2020 | 7.13% | 1,297,663,883 |
| Blackrock Inc. | 32,291,903 | 30 Mar 2020 | 5.06% | 921,287,992 |
| Primecap Management Company | 28,542,975 | 30 Mar 2020 | 4.48% | 814,331,076 |
| State Street Corporation | 19,325,923 | 30 Mar 2020 | 3.03% | 551,368,583 |
| Newport Trust Co | 12,607,871 | 30 Mar 2020 | 1.98% | 359,702,559 |
| JP Morgan Chase & Company | 10,448,892 | 30 Mar 2020 | 1.64% | 298,106,888 |
| Lansdowne Partners (UK) LLP | 10,286,993 | 30 Mar 2020 | 1.61% | 293,487,910 |
| FMR, LLC | 8,790,581 | 30 Mar 2020 | 1.38% | 250,795,275 |
| Bank of America Corporation | 8,388,587 | 30 Mar 2020 | 1.32% | 239,326,387 |
Top mutual fund holders
| Holder | Shares | Date reported | % out | Value |
|---|
| Vanguard Total Stock Market Index Fund | 17,081,017 | 30 Mar 2020 | 2.68% | 487,321,415 |
| Vanguard/Primecap Fund | 12,607,700 | 30 Mar 2020 | 1.98% | 359,697,681 |
| Vanguard 500 Index Fund | 11,843,602 | 30 Mar 2020 | 1.86% | 337,897,965 |
| SPDR S&P 500 ETF Trust | 6,143,410 | 30 May 2020 | 0.96% | 154,875,366 |
| Vanguard Institutional Index Fund-Institutional Index Fund | 5,091,706 | 30 Mar 2020 | 0.80% | 145,266,372 |
| Fidelity 500 Index Fund | 5,088,054 | 30 May 2020 | 0.80% | 128,269,841 |
| iShares Core S&P 500 ETF | 4,324,574 | 29 Apr 2020 | 0.68% | 112,049,712 |
| Vanguard Index-Value Index Fund | 3,916,240 | 30 Mar 2020 | 0.61% | 111,730,327 |
| Vanguard Horizon Fund-Capital Opportunity Portfolio | 3,902,510 | 30 Mar 2020 | 0.61% | 111,338,610 |
| Growth Fund Of America Inc | 3,850,000 | 30 Mar 2020 | 0.60% | 109,840,500 |
