Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionSandbox Financial Partners, LLC
Latest Disclosed Ownership3,900 shares
Latest Disclosed Value $ 1,868,783
Sandbox Financial Partners, LLC reports 1.32% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 8, 2026 - Sandbox Financial Partners, LLC filed a 13F-HR form disclosing ownership of 3,900 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,868,783 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)
2026-04-08 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,900 -52 -1.32 1,869 -5.94 0.5255
2026-01-07 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,952 -111 -2.73 1,986 -2.74 0.5497
2025-10-17 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,063 -51 -1.24 2,043 2.20 0.5849
2025-07-09 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,114 -28 -0.68 1,998 -9.39 0.6303
2025-04-11 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,142 -325 -7.28 2,206 8.94 0.7788
2025-01-15 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,467 391 9.59 2,025 7.95 0.6752
2024-10-07 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,076 42 1.04 1,876 14.33 0.6639
2024-07-15 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,034 -251 -5.86 1,641 -8.99 0.6289
2024-04-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,285 1,263 41.79 1,802 67.32 0.7569
2024-01-18 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,022 -21 -0.69 1,078 1.03 0.5057
2023-10-10 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,043 170 5.92 1,066 8.89 0.5636
2023-07-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,873 17 0.60 980 11.12 0.5116
2023-04-21 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,856 -123 -4.13 882 -4.24 0.5322
2023-01-25 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,979 212 7.66 920 24.49 0.6367
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,767 342 14.10 739 11.63 0.5406
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,425 431 21.61 662 -5.97 0.4718
2022-04-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,994 134 7.20 704 26.62 0.4024
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,860 554 42.42 556 56.18 0.3489
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,306 0 0.00 356 -1.93 0.2539
2021-08-16 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,306 450 52.57 363 61.33 0.2704
2021-05-07 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 856 856 225 0.1835
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.