BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 1158970
As of 2026-06-30, SPINNAKER TRUST reported 98.14K BRK.B (shares), valued at $49.11M, or 2.38% of its reported non-derivative portfolio. Filed 2026-08-03.
Verify history & sources →Shares increased 0.10%; reported value increased 4.53%, and weight changed -0.22 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 | 2.38% | 98,136 | SEC filing ↗Filed Aug 3, 2026 |
| Q1 2026 | 2.60% | 98,034 | SEC filing ↗Filed Apr 23, 2026 |
| Q4 2025 | 2.68% | 99,543 | SEC filing ↗Filed Feb 10, 2026 |
| Q3 2025 | 2.76% | 99,118 | SEC filing ↗Filed Nov 5, 2025 |
| Q2 2025 | 2.31% | 78,998 | SEC filing ↗Filed Aug 4, 2025 |
| Q1 2025 | 2.72% | 78,187 | SEC filing ↗Filed Apr 25, 2025 |
| Q4 2024 | 2.38% | 83,215 | SEC filing ↗Filed Jan 30, 2025 |
| Q3 2024 | 2.36% | 83,214 | SEC filing ↗Filed Oct 31, 2024 |
| Q2 2024 | 2.26% | 86,814 | SEC filing ↗Filed Jul 31, 2024 |
| Q1 2024 | 2.38% | 87,677 | SEC filing ↗Filed May 6, 2024 |
| Q4 2023 | 2.15% | 88,551 | SEC filing ↗Filed Feb 2, 2024 |
| Q3 2023 | 2.33% | 88,534 | SEC filing ↗Filed Nov 8, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 2.33% | 88,534 | $31.01M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 8, 2023 |
| Q4 2023 | 2.15% | 88,551 | $31.58M | Shares increased 0.02%; reported value increased 1.84%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 2, 2024 |
| Q1 2024 | 2.38% | 87,677 | $36.87M | Shares decreased 0.99%; reported value increased 16.74%, and weight changed +0.23 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 6, 2024 |
| Q2 2024 | 2.26% | 86,814 | $35.32M | Shares decreased 0.98%; reported value decreased 4.21%, and weight changed -0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 31, 2024 |
| Q3 2024 | 2.36% | 83,214 | $38.30M | Shares decreased 4.15%; reported value increased 8.45%, and weight changed +0.10 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 31, 2024 |
| Q4 2024 | 2.38% | 83,215 | $37.72M | Shares increased 0.00%; reported value decreased 1.52%, and weight changed +0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 30, 2025 |
| Q1 2025 | 2.72% | 78,187 | $41.64M | Shares decreased 6.04%; reported value increased 10.40%, and weight changed +0.34 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 25, 2025 |
| Q2 2025 | 2.31% | 78,998 | $38.37M | Shares increased 1.04%; reported value decreased 7.84%, and weight changed -0.41 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 4, 2025 |
| Q3 2025 | 2.76% | 99,118 | $49.83M | Shares increased 25.47%; reported value increased 29.85%, and weight changed +0.45 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 5, 2025 |
| Q4 2025 | 2.68% | 99,543 | $50.04M | Shares increased 0.43%; reported value increased 0.41%, and weight changed -0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 10, 2026 |
| Q1 2026 | 2.60% | 98,034 | $46.98M | Shares decreased 1.52%; reported value decreased 6.11%, and weight changed -0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 23, 2026 |
| Q2 2026 | 2.38% | 98,136 | $49.11M | Shares increased 0.10%; reported value increased 4.53%, and weight changed -0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 3, 2026 |
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Sources, coverage & how to read this data
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.