BRK.B fund manager activity
Berkshire Hathaway Inc. New · NYSE. Reported by 43 tracked fund managers in their 13F filings, Q3 2012 to Q3 2026.
Q1 2026
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| Chuck Akre - Akre Capital Management | Trimmed | 10,339 | $4,954,449 | 0.08% | May 14, 2026 |
| Guy Spier - Aquamarine Capital | No change | 97,600 | $46,770,000 | 34.6% | Apr 17, 2026 |
| Bill & Melinda Gates Foundation Trust | Trimmed | 17,048,304 | $8,169,547,277 | 25.8% | May 15, 2026 |
| Arnold Van Den Berg - Century Management | Trimmed | 23,478 | $11,250,655 | 2.58% | May 15, 2026 |
| Steven Check - Check Capital Management | Added | 1,108,390 | $531,140,355 | 32.7% | May 4, 2026 |
| Francis Chou - Chou Associates | New | 3,100 | $1,485,520 | 0.71% | May 14, 2026 |
| Christopher Davis - Davis Advisors | Added | 749,846 | $359,336,086 | 1.65% | May 7, 2026 |
| Dodge & Cox Funds | No change | 11,440 | $5,482,048 | 0.00% | May 14, 2026 |
| Bruce Berkowitz - Fairholme Capital | Added | 50,452 | $24,176,598 | 1.60% | May 15, 2026 |
| First Eagle Investment Management | Added | 57,603 | $27,603,257 | 0.05% | May 14, 2026 |
| Ken Fisher - Fisher Asset Management | Trimmed | 38,121 | $18,267,963 | 0.01% | May 5, 2026 |
| Jeremy Grantham - GMO | Trimmed | 2,654 | $1,271,797 | 0.00% | May 14, 2026 |
| Thomas Russo - Gardner Russo & Quinn | Trimmed | 1,110,429 | $532,117,577 | 6.26% | May 13, 2026 |
| Francois Rochon - Giverny Capital | Trimmed | 378,625 | $181,437,100 | 6.64% | May 15, 2026 |
| Joel Greenblatt - Gotham Asset Management | Added | 104,084 | $49,877,053 | 0.15% | May 15, 2026 |
| Duan Yongping - H&H International Investment | Added | 9,147,796 | $4,383,623,843 | 21.9% | May 19, 2026 |
| Li Lu - Himalaya Capital Management | No change | 897,749 | $430,201,321 | 13.4% | May 15, 2026 |
| Mairs & Power Funds | Trimmed | 23,929 | $11,466,777 | 0.12% | May 14, 2026 |
| Thomas Gayner - Markel Group | No change | 1,531,971 | $734,120,503 | 6.15% | May 1, 2026 |
| David Katz - Matrix Asset Advisors | No change | 11,595 | $5,556,324 | 0.51% | Apr 22, 2026 |
| Muhlenkamp | Trimmed | 38,351 | $18,377,799 | 4.84% | May 6, 2026 |
| Bill Nygren - Oakmark Funds | Trimmed | 25,439 | $12,190,369 | 0.02% | May 15, 2026 |
| Robert Olstein - Olstein Capital Management | No change | 11,000 | $5,271 | 1.15% | Apr 21, 2026 |
| Ruane Cunniff LP | Trimmed | 310,388 | $148,737,930 | 2.47% | May 15, 2026 |
| Christopher Bloomstran - Semper Augustus | Added | 253,025 | $121,249,580 | 14.5% | May 15, 2026 |
| Harry Burn - Sound Shore | Trimmed | 199,485 | $95,593,212 | 3.20% | May 7, 2026 |
| Torray Funds | No change | 2,884 | $1,382,013 | 0.20% | May 1, 2026 |
| Tweedy Browne | Added | 97,406 | $46,676,955 | 3.71% | May 6, 2026 |
| Wallace Weitz - Weitz Investment Management | Trimmed | 278,850 | $133,624,920 | 9.33% | May 14, 2026 |
| Yacktman Asset Management | Added | 314,981 | $150,938,895 | 2.01% | May 1, 2026 |
Q4 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| Chuck Akre - Akre Capital Management | Trimmed | 11,902 | $5,982,540 | 0.07% | Feb 13, 2026 |
| Guy Spier - Aquamarine Capital | Trimmed | 97,600 | $49,059,000 | 33.3% | Jan 15, 2026 |
| Bill & Melinda Gates Foundation Trust | Trimmed | 19,406,764 | $9,754,809,925 | 27.6% | Feb 17, 2026 |
| Arnold Van Den Berg - Century Management | Trimmed | 27,110 | $13,626,839 | 3.12% | Feb 17, 2026 |
| Steven Check - Check Capital Management | Added | 1,102,508 | $554,175,532 | 33.1% | Feb 6, 2026 |
| Christopher Davis - Davis Advisors | Added | 739,875 | $371,908,140 | 1.67% | Feb 2, 2026 |
| Dodge & Cox Funds | No change | 11,440 | $5,750,316 | 0.00% | Feb 13, 2026 |
| Bruce Berkowitz - Fairholme Capital | Trimmed | 48,012 | $24,133,232 | 1.68% | Feb 17, 2026 |
| First Eagle Investment Management | Added | 51,877 | $26,076,024 | 0.05% | Feb 4, 2026 |
| Ken Fisher - Fisher Asset Management | Added | 38,195 | $19,198,987 | 0.01% | Feb 9, 2026 |
| Jeremy Grantham - GMO | Trimmed | 3,718 | $1,868,853 | 0.00% | Feb 17, 2026 |
| Thomas Russo - Gardner Russo & Quinn | Trimmed | 1,125,395 | $565,679,797 | 6.11% | Feb 12, 2026 |
| Francois Rochon - Giverny Capital | Trimmed | 505,984 | $254,332,858 | 8.48% | Feb 13, 2026 |
| Joel Greenblatt - Gotham Asset Management | Trimmed | 100,492 | $50,512,304 | 0.18% | Feb 17, 2026 |
| Duan Yongping - H&H International Investment | Added | 7,176,196 | $3,607,114,919 | 20.6% | Feb 17, 2026 |
| Li Lu - Himalaya Capital Management | No change | 897,749 | $451,253,535 | 12.6% | Feb 19, 2026 |
| Mairs & Power Funds | Trimmed | 24,857 | $12,494,371 | 0.12% | Feb 17, 2026 |
| Thomas Gayner - Markel Group | No change | 1,531,971 | $770,045,226 | 6.14% | Feb 6, 2026 |
| David Katz - Matrix Asset Advisors | Trimmed | 11,595 | $5,828,227 | 0.52% | Jan 16, 2026 |
| Muhlenkamp | Added | 38,411 | $19,307,289 | 5.19% | Feb 4, 2026 |
| Bill Nygren - Oakmark Funds | Trimmed | 25,999 | $13,068,397 | 0.02% | Feb 17, 2026 |
| Robert Olstein - Olstein Capital Management | No change | 11,000 | $5,529 | 1.13% | Feb 3, 2026 |
| Ruane Cunniff LP | Trimmed | 316,106 | $158,890,681 | 2.48% | Feb 13, 2026 |
| Christopher Bloomstran - Semper Augustus | Trimmed | 249,211 | $125,265,909 | 14.4% | Feb 17, 2026 |
| Harry Burn - Sound Shore | Added | 210,204 | $105,659,041 | 3.36% | Feb 10, 2026 |
| Torray Funds | Trimmed | 2,884 | $1,449,643 | 0.21% | Jan 28, 2026 |
| Tweedy Browne | Trimmed | 97,081 | $48,797,765 | 3.94% | Feb 3, 2026 |
| Wallace Weitz - Weitz Investment Management | No change | 286,850 | $144,185,153 | 8.55% | Feb 12, 2026 |
| Yacktman Asset Management | Trimmed | 313,033 | $157,346,037 | 2.20% | Feb 3, 2026 |