Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionHeritage Financial Services, LLC
Latest Disclosed Ownership2,829 shares
Latest Disclosed Value $ 1,421,997
Heritage Financial Services, LLC reports 19.79% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On February 2, 2026 - Heritage Financial Services, LLC filed a 13F-HR form disclosing ownership of 2,829 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,421,997 USD as of December 31, 2025.

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)
2026-02-02 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,829 -698 -19.79 1,422 -19.85 0.1187
2025-10-30 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,527 679 23.84 1,773 28.20 0.1594
2025-07-18 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,848 -339 -10.64 1,383 -18.50 0.1331
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,187 67 2.15 1,697 20.01 0.1680
2025-01-23 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,120 -69 -2.16 1,414 -3.61 0.1878
2024-10-23 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,189 132 4.32 1,468 18.02 0.1952
2024-07-23 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,057 -133 -4.17 1,244 -7.31 0.1784
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,190 189 6.30 1,341 25.33 0.1996
2024-02-02 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,001 0 0.00 1,070 1.81 0.1821
2023-10-19 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,001 250 9.09 1,051 12.05 0.2053
2023-07-31 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,751 0 0.00 938 10.48 0.1877
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,751 54 2.00 849 1.92 0.1851
2023-01-27 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,697 -82 -2.95 833 12.26 0.2109
2022-11-03 2022-09-30 13F Berkshire Hathaway Inc Cl B CL B NEW 084670702 2,779 -1,575 -36.17 742 -37.54 0.4503
2022-07-19 2022-06-30 13F Berkshire Hathaway Inc Cl B CL B NEW 084670702 4,354 -160 -3.54 1,188 -25.42 0.6621
2022-08-30 2022-03-31 13F Berkshire Hathaway Inc Cl B CL B NEW 084670702 4,514 1,637 56.90 1,593 85.23 1.0414
2022-08-26 2021-12-31 13F Berkshire Hathaway Inc Cl B CL B NEW 084670702 2,877 2,877 860 0.6734
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.