Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionStrongBox Wealth, LLC
Latest Disclosed Ownership2,346 shares
Latest Disclosed Value $ 1,124,203
StrongBox Wealth, LLC reports 1.55% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 8, 2026 - StrongBox Wealth, LLC filed a 13F-HR form disclosing ownership of 2,346 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,124,203 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 2 shares of Berkshire Hathaway Inc.. This represents a change in shares of -1.55% 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)
2026-05-08 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,346 -37 -1.55 1,124 -6.10 0.3597
2026-01-21 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,383 -26 -1.08 1,198 -1.16 0.3937
2025-10-07 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,409 -1,511 -38.55 1,211 -36.40 0.4098
2025-07-09 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,920 172 4.59 1,904 -4.61 0.7226
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,748 107 2.94 1,996 20.97 0.8321
2025-01-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,641 187 5.41 1,650 3.84 0.6987
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,454 262 8.21 1,590 22.42 0.6811
2024-08-12 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,192 -375 -10.51 1,299 -13.41 0.6132
2024-05-14 2024-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,567 -148 -3.98 1,500 13.22 0.7907
2024-04-26 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,715 0 1,325 0.7732
2024-01-08 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,715 1,385 59.44 1,325 62.25 0.7732
2023-10-10 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,330 138 6.30 816 9.24 0.5196
2023-07-24 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,192 -1,089 -33.19 747 -26.26 0.4716
2023-04-21 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,281 -3,663 -52.75 1,013 -52.77 0.6799
2023-01-19 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,944 423 6.49 2,145 23.21 1.5173
2022-10-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,521 957 17.20 1,741 14.61 1.2619
2022-07-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,564 52 0.94 1,519 -21.90 0.9820
2022-04-14 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,512 3,927 247.76 1,945 310.34 1.1090
2022-01-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,585 0 0.00 474 9.47 0.2368
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,585 -10 -0.63 433 -2.26 0.2429
2021-08-10 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,595 1,595 443 0.2539
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.