BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 2032709
As of 2026-06-30, RMR Capital Management, LLC reported 50.10K BRK.B (shares), valued at $25.07M, or 17.26% of its reported non-derivative portfolio. Filed 2026-07-27.
Verify history & sources →Shares decreased 0.08%; reported value increased 4.34%, and weight changed -0.09 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 | 17.26% | 50,103 | SEC filing ↗Filed Jul 27, 2026 |
| Q1 2026 | 17.35% | 50,142 | SEC filing ↗Filed May 20, 2026 |
| Q4 2025 | 18.19% | 50,172 | SEC filing ↗Filed Feb 12, 2026 |
| Q3 2025 | 17.89% | 50,944 | SEC filing ↗Filed Nov 3, 2025 |
| Q2 2025 | 17.85% | 51,391 | SEC filing ↗Filed Jul 28, 2025 |
| Q1 2025 | 20.45% | 53,218 | SEC filing ↗Filed May 13, 2025 |
| Q4 2024 | 18.09% | 53,590 | SEC filing ↗Filed Jan 23, 2025 |
| Q3 2024 | 21.17% | 54,073 | SEC filing ↗Filed Nov 5, 2024 |
| Q2 2024 | 20.08% | 54,073 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 22.68% | 54,199 | SEC filing ↗Filed Nov 5, 2024 |
| Q4 2023 | 22.92% | 55,942 | SEC filing ↗Filed Nov 5, 2024 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q4 2023 | 22.92% | 55,942 | $19.95M | A comparable prior-quarter record is unavailable; changes are not inferred. | SEC filing ↗ Filed Nov 5, 2024 |
| Q1 2024 | 22.68% | 54,199 | $22.79M | Shares decreased 3.12%; reported value increased 14.23%, and weight changed -0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 5, 2024 |
| Q2 2024 | 20.08% | 54,073 | $22.00M | Shares decreased 0.23%; reported value decreased 3.49%, and weight changed -2.60 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 21.17% | 54,073 | $24.89M | Shares unchanged; reported value increased 13.14%, and weight changed +1.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 5, 2024 |
| Q4 2024 | 18.09% | 53,590 | $24.29M | Shares decreased 0.89%; reported value decreased 2.40%, and weight changed -3.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 23, 2025 |
| Q1 2025 | 20.45% | 53,218 | $28.34M | Shares decreased 0.69%; reported value increased 16.68%, and weight changed +2.36 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 13, 2025 |
| Q2 2025 | 17.85% | 51,391 | $24.96M | Shares decreased 3.43%; reported value decreased 11.92%, and weight changed -2.60 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 28, 2025 |
| Q3 2025 | 17.89% | 50,944 | $25.61M | Shares decreased 0.87%; reported value increased 2.59%, and weight changed +0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 3, 2025 |
| Q4 2025 | 18.19% | 50,172 | $25.22M | Shares decreased 1.52%; reported value decreased 1.53%, and weight changed +0.30 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 12, 2026 |
| Q1 2026 | 17.35% | 50,142 | $24.03M | Shares decreased 0.06%; reported value decreased 4.72%, and weight changed -0.84 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 20, 2026 |
| Q2 2026 | 17.26% | 50,103 | $25.07M | Shares decreased 0.08%; reported value increased 4.34%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 27, 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.