Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionFortress Wealth Group, LLC
Latest Disclosed Ownership4,918 shares
Latest Disclosed Value $ 2,342,821
Fortress Wealth Group, LLC reports 15.86% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 13, 2026 - Fortress Wealth Group, LLC filed a 13F-HR form disclosing ownership of 4,918 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,342,821 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 2, 2026 disclosing 5,845 shares of Berkshire Hathaway Inc.. This represents a change in shares of -15.86% 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)
2026-04-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,918 -927 -15.86 2,343 -16.60 0.8854
2026-02-02 2025-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,845 210 3.73 2,809 4.78 1.0660
2026-01-29 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,635 0 2,681 1.1568
2025-10-30 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,635 123 2.23 2,681 5.93 1.1568
2025-08-05 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,512 291 5.57 2,530 -9.32 1.1899
2025-05-02 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,221 24 0.46 2,791 15.58 1.3733
2025-02-07 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,197 191 3.82 2,415 5.19 1.1583
2024-11-08 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,006 -502 -9.11 2,295 -3.97 1.1403
2024-07-31 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,508 404 7.92 2,391 14.57 1.2005
2024-05-13 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,104 619 13.80 2,087 26.35 1.1186
2024-01-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,485 361 8.75 1,651 16.76 0.9845
2023-10-12 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,124 118 2.95 1,415 -2.62 0.9434
2023-08-10 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,006 110 2.82 1,452 20.80 0.9186
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,896 -405 -9.42 1,203 -9.49 0.8687
2023-02-07 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,301 -283 -6.17 1,329 8.50 0.9283
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,584 51 1.13 1,224 -1.13 0.9180
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,533 1,487 48.82 1,238 15.16 1.0669
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,046 -377 -11.01 1,075 -2.63 0.8309
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,423 228 7.14 1,104 26.61 0.8219
2021-11-04 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,195 280 9.61 872 7.65 0.7545
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,915 2,915 810 0.7235
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.