BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 1386060
As of 2026-06-30, Boston Partners reported 10.22K BRK.B (shares), valued at $5.11M, or 0.00% of its reported non-derivative portfolio. Filed 2026-08-04.
Verify history & sources →Shares increased 11.22%; reported value increased 4.73%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 0.00% | 10,219 | SEC filing ↗Filed Aug 4, 2026Combination report |
| Q1 2026 | 0.01% | 9,188 | SEC filing ↗Filed May 11, 2026Combination report |
| Q4 2025 | 0.00% | 7,716 | SEC filing ↗Filed Feb 13, 2026Combination report |
| Q3 2025 | 0.00% | 7,945 | SEC filing ↗Filed Nov 13, 2025Combination report |
| Q2 2025 | 0.00% | 6,736 | SEC filing ↗Filed Aug 12, 2025AmendedCombination report |
| Q1 2025 | 0.01% | 10,010 | SEC filing ↗Filed May 13, 2025Combination report |
| Q4 2024 | 0.01% | 14,965 | SEC filing ↗Filed Feb 11, 2025Combination report |
| Q3 2024 | 0.01% | 17,986 | SEC filing ↗Filed Nov 12, 2024Combination report |
| Q2 2024 | 1.38% | 2,734,612 | SEC filing ↗Filed Aug 14, 2024Combination report |
| Q1 2024 | 1.37% | 2,741,632 | SEC filing ↗Filed May 28, 2024AmendedCombination report |
| Q4 2023 | 1.28% | 2,715,254 | SEC filing ↗Filed Feb 7, 2024Combination report |
| Q3 2023 | 1.40% | 2,897,423 | SEC filing ↗Filed Nov 8, 2023Combination report |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 1.40% | 2,897,423 | $1.01B | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 8, 2023 |
| Q4 2023 | 1.28% | 2,715,254 | $969.83M | Shares decreased 6.29%; reported value decreased 4.30%, and weight changed -0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 7, 2024 |
| Q1 2024 | 1.37% | 2,741,632 | $1.15B | Shares increased 0.97%; reported value increased 18.64%, and weight changed +0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 28, 2024 |
| Q2 2024 | 1.38% | 2,734,612 | $1.11B | Shares decreased 0.26%; reported value decreased 3.11%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 0.01% | 17,986 | $8.28M | Shares decreased 99.34%; reported value decreased 99.26%, and weight changed -1.37 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2024 |
| Q4 2024 | 0.01% | 14,965 | $6.78M | Shares decreased 16.80%; reported value decreased 18.06%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 11, 2025 |
| Q1 2025 | 0.01% | 10,010 | $5.33M | Shares decreased 33.11%; reported value decreased 21.41%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 13, 2025 |
| Q2 2025 | 0.00% | 6,736 | $3.27M | Shares decreased 32.71%; reported value decreased 38.62%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2025 |
| Q3 2025 | 0.00% | 7,945 | $3.99M | Shares increased 17.95%; reported value increased 22.05%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 13, 2025 |
| Q4 2025 | 0.00% | 7,716 | $3.88M | Shares decreased 2.88%; reported value decreased 2.90%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2026 |
| Q1 2026 | 0.01% | 9,188 | $4.88M | Shares increased 19.08%; reported value increased 25.88%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 11, 2026 |
| Q2 2026 | 0.00% | 10,219 | $5.11M | Shares increased 11.22%; reported value increased 4.73%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 4, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.