Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBrown Miller Wealth Management, LLC
Latest Disclosed Ownership5,726 shares
Latest Disclosed Value $ 2,743,899
Brown Miller Wealth Management, LLC reports 0.12% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 23, 2026 - Brown Miller Wealth Management, LLC filed a 13F-HR form disclosing ownership of 5,726 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,743,899 USD as of March 31, 2026.

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)
2026-04-23 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,726 7 0.12 2,744 -4.56 0.7798
2026-01-23 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,719 49 0.86 2,875 0.84 0.7942
2025-10-21 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,670 13 0.23 2,851 3.71 0.8079
2025-07-22 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,657 -82 -1.43 2,748 -10.08 0.8537
2025-04-17 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,739 512 9.80 3,056 29.00 1.0577
2025-02-10 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,227 0 0.00 2,369 -1.50 0.9086
2025-02-11 2024-09-30 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 0.00 2,406 13.12 0.9350
2024-10-10 2024-09-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 2 0.9349
2025-02-11 2024-06-30 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 0.00 2,126 -3.28 0.8832
2024-07-12 2024-06-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 2 0.8832
2025-02-11 2024-03-31 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 0.00 2,198 17.92 0.9690
2024-04-17 2024-03-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 2 0.9692
2025-02-11 2023-12-31 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 0.00 1,864 1.80 0.9319
2024-01-18 2023-12-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 0 2 0.9317
2025-02-11 2023-09-30 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 -18 -0.34 1,831 2.40 1.0224
2023-10-17 2023-09-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,227 -18 2 1.0227
2025-02-11 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 0 0.00 1,789 10.44 0.9652
2023-07-18 2023-06-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 0 2 0.9652
2025-02-11 2023-03-31 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 0 0.00 1,619 -0.06 0.9582
2023-04-10 2023-03-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 0 2 0.9580
2025-02-11 2022-12-31 13F/A-1 BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 -26 -0.49 1,620 15.14 1.0242
2023-01-12 2022-12-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,245 -26 2 1.0245
2022-10-11 2022-09-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 5,271 1,350 34.43 1,407 31.50 0.9978
2022-07-18 2022-06-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,921 -30 -0.76 1,070 -23.24 0.7278
2022-04-14 2022-03-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,951 372 10.39 1,394 30.28 0.8064
2022-01-25 2021-12-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,579 0 0.00 1,070 9.63 0.6121
2021-10-20 2021-09-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,579 0 0.00 976 -1.81 0.6126
2021-07-26 2021-06-30 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,579 -39 -1.08 994 7.58 0.6350
2021-04-21 2021-03-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,618 -30 -0.82 924 9.22 0.6531
2021-01-26 2020-12-31 13F BERKSHIRE HATHAWAY INC SERIES B CL B New 084670702 3,648 3,648 846 0.6440
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.