Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionTrue North Advisors, LLC
Latest Disclosed Ownership57,140 shares
Latest Disclosed Value $ 27,381,692
True North Advisors, LLC reports 27.48% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 7, 2026 - True North Advisors, LLC filed a 13F-HR form disclosing ownership of 57,140 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $27,381,692 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 2 shares of Berkshire Hathaway Inc.. This represents a change in shares of -27.48% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,140 -21,653 -27.48 27,382 -30.86 3.1213
2026-01-22 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 78,793 -1,279 -1.60 39,605 -1.61 5.1200
2025-10-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 80,072 -383 -0.48 40,256 3.00 6.3902
2025-07-16 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 80,455 -2,527 -3.05 39,083 -11.57 7.4901
2025-05-12 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 82,982 -4,010 -4.61 44,194 12.08 7.8346
2025-01-17 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 86,992 1,668 1.95 39,432 0.41 9.2954
2024-10-08 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 85,324 -837 -0.97 39,271 12.04 10.2745
2024-08-12 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 86,161 -2,340 -2.64 35,050 -5.82 9.3639
2024-04-12 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 88,501 -3,500 -3.80 37,216 13.42 10.2731
2024-01-22 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,001 -1,611 -1.72 32,813 0.06 8.4264
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,612 -68 -0.07 32,792 2.65 10.1013
2023-08-10 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,680 -267 -0.28 31,945 10.13 9.0573
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,947 509 0.54 29,008 0.50 8.5324
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,438 -1,318 -1.39 28,863 14.08 9.8432
2022-11-14 2022-09-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 94,756 -858 -0.90 25,301 -3.08 8.3004
2022-07-28 2022-06-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 95,614 33 0.03 26,104 -22.61 8.1312
2022-05-12 2022-03-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 95,581 2,795 3.01 33,731 21.58 9.0714
2022-02-11 2021-12-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 92,786 145 0.16 27,743 9.72 4.6863
2022-06-07 2021-09-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 92,641 2,430 2.69 25,285 0.85 4.9785
2022-06-07 2021-06-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 90,211 2,177 2.47 25,071 11.48 5.2232
2022-06-07 2021-03-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 88,034 3,222 3.80 22,490 14.37 5.3368
2022-05-20 2020-12-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 84,812 4,725 5.90 19,665 15.32 5.0493
2022-05-20 2020-09-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 80,087 5,365 7.18 17,053 27.85 4.9745
2022-05-20 2020-06-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 74,722 -4,134 -5.24 13,338 -7.48 3.2073
2022-05-12 2020-03-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 78,856 -3,131 -3.82 14,417 -22.36 4.9185
2022-05-12 2019-12-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 81,987 81,987 18,570 5.2244
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.