| Berkshire Hathaway INC. |
Common |
84,375,856 |
$13,986,141,890 |
2026-06-30 |
| Dodge & Cox / Dodge & Cox Funds |
Common |
202,503 |
$33,566,897 |
2026-06-30 |
| Mairs & Power INC / Mairs & Power Funds Trust |
Common |
41,147 |
$6,820,527 |
2026-06-30 |
| Ariel Investments, LLC |
Common |
34,626 |
$5,739,606 |
2026-06-30 |
| Sound Shore Management INC /CT/ |
Common |
13,475 |
$2,233,616 |
2026-06-30 |
| Semper Augustus Investments Group LLC |
Common |
6,063 |
$1,005,003 |
2026-06-30 |
| Van Den Berg Management I, INC / Century Management |
Common |
4,592 |
$761,170 |
2026-06-30 |
| Gardner Russo & Quinn LLC |
Common |
2,470 |
$409,427 |
2026-06-30 |
| Kahn Brothers Group INC |
Common |
1,953 |
$323,729 |
2026-06-30 |
| Harris Associates L.P. |
Common |
1,350 |
$223,776 |
2026-06-30 |
| Check Capital Management INC/CA |
Common |
1,250 |
$207,200 |
2026-06-30 |