Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
4,736 institutional managers reported holding BRK-B for the quarter ended Mar 31, 2026. Together they hold about 69% of shares outstanding; the top 10 hold 38%. 147 opened new positions; 148 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 158.51M | 12.16% | added +0.8% | ≤2013 | |
| BlackRock | 121.21M | 9.30% | unchanged | ≤2013 | |
| State Street | 74.10M | 5.69% | unchanged | 2015 Q4 | |
| Geode Capital | 41.16M | 3.16% | added +2.8% | ≤2013 | |
| Morgan Stanley | 26.85M | 2.06% | added +2.2% | ≤2013 | |
| Gates Foundation Trust (focused) | 17.05M | 1.31% | trimmed -12.2% | ≤2013 | |
| Northern Trust | 15.49M | 1.19% | unchanged | ≤2013 | |
| FMR (Fidelity) | 14.95M | 1.15% | added +58.1% | ≤2013 | |
| UBS | 13.41M | 1.03% | added +7.4% | ≤2013 | |
| Charles Schwab Investment Management | 11.39M | 0.87% | added +3.1% | ≤2013 | |
| BNY Mellon | 10.81M | 0.83% | trimmed -3.2% | ≤2013 | |
| T. Rowe Price | 9.82M | 0.75% | unchanged | ≤2013 | |
| Goldman Sachs | 9.24M | 0.71% | trimmed -2.8% | ≤2013 | |
| H&H International Investment, LLC (focused) | 9.15M | 0.70% | added +27.5% | 2018 Q4 | |
| Royal Bank OF Canada | 9.11M | 0.70% | trimmed -4.8% | ≤2013 | |
| Bank OF America CORP /DE/ | 8.65M | 0.66% | unchanged | ≤2013 | |
| Dimensional Fund Advisors | 7.33M | 0.56% | added +3.2% | ≤2013 | |
| Barclays PLC | 6.18M | 0.47% | trimmed -11% | ≤2013 | |
| Legal & General Group PLC | 5.90M | 0.45% | trimmed -2% | ≤2013 | |
| Nuveen | 5.59M | 0.43% | added +1.2% | ≤2013 | |
| Wells Fargo & COMPANY/MN | 5.12M | 0.39% | unchanged | ≤2013 | |
| Invesco | 4.90M | 0.38% | added +7.5% | ≤2013 | |
| Amundi | 4.71M | 0.36% | added +21.9% | ≤2013 | |
| AllianceBernstein | 4.37M | 0.34% | added +25.7% | ≤2013 | |
| Mitsubishi UFJ Asset Management CO., LTD. | 4.28M | 0.33% | added +5.9% | ≤2013 | |
| Raymond James Financial INC | 4.24M | 0.33% | trimmed -1.3% | ≤2013 | |
| Swiss National Bank | 4.04M | 0.31% | added +6.9% | 2023 Q2 | |
| Deutsche Bank AG\ | 3.57M | 0.27% | added +15.4% | 2013 Q3 | |
| LPL Financial LLC | 3.41M | 0.26% | added +1.2% | ≤2013 | |
| Hsbc Holdings PLC | 3.28M | 0.25% | trimmed -6.9% | ≤2013 | |
| Sumitomo Mitsui Trust Group, INC. | 3.25M | 0.25% | trimmed -4.9% | ≤2013 | |
| Ameriprise Financial INC | 3.25M | 0.25% | added +75% | ≤2013 | |
| CPP Investment Board | 2.99M | 0.23% | added +3.9% | ≤2013 | |
| Rhumbline Advisers | 2.85M | 0.22% | trimmed -1.6% | ≤2013 | |
| Creative Planning | 2.84M | 0.22% | trimmed -0.6% | ≤2013 | |
| CalPERS | 2.78M | 0.21% | trimmed -18% | ≤2013 | |
| National Pension Service | 2.73M | 0.21% | added +2.9% | 2014 Q3 | |
| Baird Financial Group, INC. | 2.67M | 0.20% | added +2.6% | ≤2013 | |
| Artisan Partners | 2.61M | 0.20% | unchanged | ≤2013 | |
| Flossbach VON Storch SE | 2.60M | 0.20% | trimmed -5.6% | ≤2013 | |
| BNP Paribas Financial Markets | 2.59M | 0.20% | added +10.4% | ≤2013 | |
| Bank OF Montreal /CAN/ | 2.50M | 0.19% | trimmed -12% | ≤2013 | |
| Principal Financial Group INC | 2.44M | 0.19% | trimmed -1% | ≤2013 | |
| HighTower Advisors, LLC | 2.43M | 0.19% | trimmed -2.8% | ≤2013 | |
| Assenagon Asset Management S.a. | 2.31M | 0.18% | added +29.6% | 2017 Q1 | |
| California State Teachers Retirement System | 2.07M | 0.16% | trimmed -2.6% | ≤2013 | |
| NEW York State Common Retirement Fund | 1.95M | 0.15% | unchanged | ≤2013 | |
| Capital Research Global Investors | 1.93M | 0.15% | trimmed -5.3% | ≤2013 | |
| Tetrad CORP (focused) | 1.92M | 0.15% | unchanged | ≤2013 | |
| GQG Partners | 1.90M | 0.15% | trimmed -5.1% | 2025 Q4 |
Largest 50 of 4,736 shown; the full ranked, searchable register is at boothcheck.com/holders/BRK-B. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.