BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 1453620
As of 2026-06-30, Cohen Klingenstein LLC reported 105.27K BRK.B (shares), valued at $52.68M, or 1.51% of its reported non-derivative portfolio. Filed 2026-07-15.
Verify history & sources →Shares decreased 0.43%; reported value increased 3.98%, and weight changed -0.13 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 | 1.51% | 105,274 | SEC filing ↗Filed Jul 15, 2026 |
| Q1 2026 | 1.64% | 105,724 | SEC filing ↗Filed Apr 15, 2026 |
| Q4 2025 | 1.61% | 105,724 | SEC filing ↗Filed Jan 20, 2026 |
| Q3 2025 | 1.67% | 105,934 | SEC filing ↗Filed Oct 16, 2025 |
| Q2 2025 | 1.72% | 105,934 | SEC filing ↗Filed Jul 18, 2025 |
| Q1 2025 | 2.04% | 105,934 | SEC filing ↗Filed Apr 15, 2025 |
| Q4 2024 | 1.64% | 105,934 | SEC filing ↗Filed Jan 15, 2025 |
| Q3 2024 | 2.64% | 164,439 | SEC filing ↗Filed Oct 16, 2024 |
| Q2 2024 | 2.43% | 164,439 | SEC filing ↗Filed Jul 15, 2024 |
| Q1 2024 | 2.59% | 165,302 | SEC filing ↗Filed Apr 12, 2024 |
| Q4 2023 | 2.42% | 165,627 | SEC filing ↗Filed Jan 16, 2024 |
| Q3 2023 | 2.63% | 165,627 | SEC filing ↗Filed Oct 13, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 2.63% | 165,627 | $58.02M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Oct 13, 2023 |
| Q4 2023 | 2.42% | 165,627 | $59.07M | Shares unchanged; reported value increased 1.82%, and weight changed -0.21 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 16, 2024 |
| Q1 2024 | 2.59% | 165,302 | $69.51M | Shares decreased 0.20%; reported value increased 17.67%, and weight changed +0.17 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 12, 2024 |
| Q2 2024 | 2.43% | 164,439 | $66.89M | Shares decreased 0.52%; reported value decreased 3.77%, and weight changed -0.16 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 15, 2024 |
| Q3 2024 | 2.64% | 164,439 | $75.68M | Shares unchanged; reported value increased 13.14%, and weight changed +0.21 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 16, 2024 |
| Q4 2024 | 1.64% | 105,934 | $48.02M | Shares decreased 35.58%; reported value decreased 36.56%, and weight changed -1.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 15, 2025 |
| Q1 2025 | 2.04% | 105,934 | $56.42M | Shares unchanged; reported value increased 17.49%, and weight changed +0.40 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 15, 2025 |
| Q2 2025 | 1.72% | 105,934 | $51.46M | Shares unchanged; reported value decreased 8.79%, and weight changed -0.32 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 18, 2025 |
| Q3 2025 | 1.67% | 105,934 | $53.26M | Shares unchanged; reported value increased 3.49%, and weight changed -0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 16, 2025 |
| Q4 2025 | 1.61% | 105,724 | $53.14M | Shares decreased 0.20%; reported value decreased 0.22%, and weight changed -0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 20, 2026 |
| Q1 2026 | 1.64% | 105,724 | $50.66M | Shares unchanged; reported value decreased 4.67%, and weight changed +0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 15, 2026 |
| Q2 2026 | 1.51% | 105,274 | $52.68M | Shares decreased 0.43%; reported value increased 3.98%, and weight changed -0.13 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 15, 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.