BERKSHIRE HATHAWAY INC-CL B · CUSIP 084670702 · CIK 73124
As of 2026-06-30, NORTHERN TRUST CORP reported 15.44M BRK.B (shares), valued at $7.72B, or 0.90% of its reported non-derivative portfolio. Filed 2026-08-13.
Verify history & sources →Shares decreased 0.32%; reported value increased 4.09%, and weight changed -0.08 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 | 0.90% | 15,437,812 | SEC filing ↗Filed Aug 13, 2026Combination report |
| Q1 2026 | 0.98% | 15,487,316 | SEC filing ↗Filed May 14, 2026Combination report |
| Q4 2025 | 1.00% | 15,528,328 | SEC filing ↗Filed Feb 17, 2026Combination report |
| Q3 2025 | 1.02% | 15,842,634 | SEC filing ↗Filed Nov 14, 2025Combination report |
| Q2 2025 | 1.07% | 15,960,324 | SEC filing ↗Filed Aug 13, 2025Combination report |
| Q1 2025 | 1.28% | 16,198,444 | SEC filing ↗Filed May 13, 2025Combination report |
| Q4 2024 | 1.06% | 16,467,585 | SEC filing ↗Filed Feb 14, 2025Combination report |
| Q3 2024 | 1.15% | 15,323,044 | SEC filing ↗Filed Nov 13, 2024Combination report |
| Q2 2024 | 1.07% | 15,682,910 | SEC filing ↗Filed Aug 14, 2024Combination report |
| Q1 2024 | 1.14% | 15,713,621 | SEC filing ↗Filed May 14, 2024Combination report |
| Q4 2023 | 1.05% | 16,312,734 | SEC filing ↗Filed Feb 13, 2024Combination report |
| Q3 2023 | 1.14% | 16,769,982 | SEC filing ↗Filed Nov 13, 2023Combination report |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 1.14% | 16,769,982 | $5.87B | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 13, 2023 |
| Q4 2023 | 1.05% | 16,312,734 | $5.82B | Shares decreased 2.73%; reported value decreased 0.96%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2024 |
| Q1 2024 | 1.14% | 15,713,621 | $6.61B | Shares decreased 3.67%; reported value increased 13.57%, and weight changed +0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 14, 2024 |
| Q2 2024 | 1.07% | 15,682,910 | $6.38B | Shares decreased 0.20%; reported value decreased 3.45%, and weight changed -0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 1.15% | 15,323,044 | $7.05B | Shares decreased 2.29%; reported value increased 10.55%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 13, 2024 |
| Q4 2024 | 1.06% | 16,467,585 | $7.46B | Shares increased 7.47%; reported value increased 5.84%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 14, 2025 |
| Q1 2025 | 1.28% | 16,198,444 | $8.63B | Shares decreased 1.63%; reported value increased 15.57%, and weight changed +0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 13, 2025 |
| Q2 2025 | 1.07% | 15,960,324 | $7.75B | Shares decreased 1.47%; reported value decreased 10.13%, and weight changed -0.21 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2025 |
| Q3 2025 | 1.02% | 15,842,634 | $7.96B | Shares decreased 0.74%; reported value increased 2.73%, and weight changed -0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2025 |
| Q4 2025 | 1.00% | 15,528,328 | $7.81B | Shares decreased 1.98%; reported value decreased 2.00%, and weight changed -0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 17, 2026 |
| Q1 2026 | 0.98% | 15,487,316 | $7.42B | Shares decreased 0.26%; reported value decreased 4.92%, and weight changed -0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 14, 2026 |
| Q2 2026 | 0.90% | 15,437,812 | $7.72B | Shares decreased 0.32%; reported value increased 4.09%, and weight changed -0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2026 |
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This page includes 12 of 12 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
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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.