Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionProsperity Financial Group, Inc.
Latest Disclosed Ownership2,614 shares
Latest Disclosed Value $ 1,252,629
Prosperity Financial Group, Inc. reports 0.04% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Prosperity Financial Group, Inc. filed a 13F-HR form disclosing ownership of 2,614 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,252,629 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,614 -1 -0.04 1,253 -4.72 0.4626
2026-01-26 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,615 15 0.58 1,314 0.54 0.4730
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,600 771 42.15 1,307 47.18 0.4780
2025-07-30 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,829 49 2.75 888 -6.23 0.3773
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,780 21 1.19 948 18.82 0.4719
2025-02-07 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,759 40 2.33 797 0.76 0.3970
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,719 -566 -24.77 791 -14.85 0.4430
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,285 577 33.78 930 29.39 0.5866
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,708 125 7.90 718 27.30 0.4437
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,583 550 53.24 565 56.23 0.3918
2023-11-07 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,033 81 8.51 362 11.42 0.2989
2023-09-12 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 952 952 325 0.2858
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.