BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 1553562
As of 2026-06-30, AMF Tjanstepension AB reported 412.51K BRK.B (shares), valued at $206.42M, or 1.22% of its reported non-derivative portfolio. Filed 2026-08-06.
Verify history & sources →Shares unchanged; reported value increased 4.42%, 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 | 1.22% | 412,511 | SEC filing ↗Filed Aug 6, 2026 |
| Q1 2026 | 1.31% | 412,511 | SEC filing ↗Filed May 4, 2026 |
| Q4 2025 | 1.26% | 404,415 | SEC filing ↗Filed Feb 6, 2026 |
| Q3 2025 | 1.29% | 404,624 | SEC filing ↗Filed Nov 14, 2025Amended |
| Q2 2025 | 1.32% | 408,382 | SEC filing ↗Filed Jul 22, 2025 |
| Q1 2025 | 0.96% | 245,216 | SEC filing ↗Filed May 12, 2025 |
| Q4 2024 | 0.63% | 196,626 | SEC filing ↗Filed Feb 7, 2025 |
| Q3 2024 | 0.56% | 169,346 | SEC filing ↗Filed Oct 3, 2024Amended |
| Q2 2024 | 0.51% | 169,346 | SEC filing ↗Filed Jul 10, 2024 |
| Q1 2024 | 0.49% | 152,972 | SEC filing ↗Filed Apr 16, 2024 |
| Q4 2023 | 0.29% | 95,979 | SEC filing ↗Filed Jan 30, 2024 |
| Q3 2023 | 2.60% | 763,247 | SEC filing ↗Filed Oct 26, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 2.60% | 763,247 | $267.37M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Oct 26, 2023 |
| Q4 2023 | 0.29% | 95,979 | $34.23M | Shares decreased 87.42%; reported value decreased 87.20%, and weight changed -2.31 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 30, 2024 |
| Q1 2024 | 0.49% | 152,972 | $64.33M | Shares increased 59.38%; reported value increased 87.92%, and weight changed +0.20 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 16, 2024 |
| Q2 2024 | 0.51% | 169,346 | $68.89M | Shares increased 10.70%; reported value increased 7.09%, and weight changed +0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 10, 2024 |
| Q3 2024 | 0.56% | 169,346 | $77.94M | Shares unchanged; reported value increased 13.14%, and weight changed +0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 3, 2024 |
| Q4 2024 | 0.63% | 196,626 | $89.13M | Shares increased 16.11%; reported value increased 14.35%, and weight changed +0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 7, 2025 |
| Q1 2025 | 0.96% | 245,216 | $130.60M | Shares increased 24.71%; reported value increased 46.53%, and weight changed +0.33 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 12, 2025 |
| Q2 2025 | 1.32% | 408,382 | $198.38M | Shares increased 66.54%; reported value increased 51.90%, and weight changed +0.36 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 22, 2025 |
| Q3 2025 | 1.29% | 404,624 | $203.42M | Shares decreased 0.92%; reported value increased 2.54%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2025 |
| Q4 2025 | 1.26% | 404,415 | $203.28M | Shares decreased 0.05%; reported value decreased 0.07%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 6, 2026 |
| Q1 2026 | 1.31% | 412,511 | $197.68M | Shares increased 2.00%; reported value decreased 2.76%, and weight changed +0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 4, 2026 |
| Q2 2026 | 1.22% | 412,511 | $206.42M | Shares unchanged; reported value increased 4.42%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 6, 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.