Today
+1.04%
5 Days
+5.10%
1 Month
+6.40%
6 Months
+25.69%
Year to Date
+25.28%
1 Year
+6.21%



| Shareholders | Proportion |
|---|---|
| Berkshire Hathaway Inc. | 9.88% |
| BlackRock Institutional Trust Company, N.A. | 6.14% |
| Vanguard Portfolio Management, LLC | 5.78% |
| State Street Investment Management (US) | 4.69% |
| Shareholder Types | Proportion |
|---|---|
| Investment Advisor | 37.11% |
| Investment Advisor/Hedge Fund | 31.00% |
| Holding Company | 9.89% |
| Hedge Fund | 7.98% |
Related Instruments