Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBaron Wealth Management LLC
Latest Disclosed Ownership2,181 shares
Latest Disclosed Value $ 1,045,135
Baron Wealth Management LLC reports 7.28% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 16, 2026 - Baron Wealth Management LLC filed a 13F-HR form disclosing ownership of 2,181 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,045,135 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)
2026-04-16 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,181 148 7.28 1,045 2.35 0.3125
2026-01-14 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,033 130 6.83 1,022 6.80 0.3149
2025-10-20 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,903 -112 -5.56 957 -2.25 0.3165
2025-07-09 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,015 -127 -5.93 979 -14.21 0.3468
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,142 362 20.34 1,141 41.44 0.5012
2025-01-23 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,780 50 2.89 807 1.26 0.3797
2024-11-07 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,730 456 35.79 796 53.67 0.3832
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,274 53 4.34 518 0.97 0.2686
2024-05-08 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,221 0 0.00 513 17.93 0.2726
2024-01-04 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,221 119 10.80 435 12.69 0.2385
2023-11-01 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,102 119 12.11 386 15.22 0.2465
2023-08-08 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 983 6 0.61 335 11.30 0.2128
2023-06-06 2023-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 977 27 2.84 302 2.73 0.2136
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 977 27 0 0.2138
2023-06-06 2022-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 950 950 293 0.2250
2023-04-04 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 950 950 293 0.2250
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.