Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionKeystone Financial Group
Latest Disclosed Ownership46,784 shares
Latest Disclosed Value $ 22,393,665
Keystone Financial Group reports 2.59% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Keystone Financial Group filed a 13F-HR form disclosing ownership of 46,784 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $22,393,665 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 17 shares of Berkshire Hathaway Inc.. This represents a change in shares of 2.59% 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL Equtities 084670702 46,784 1,181 2.59 22,394 -2.31 1.5064
2026-02-06 2025-12-31 13F BERKSHIRE HATHAWAY Equities 084670702 45,603 4,049 9.74 22,922 9.59 1.6955
2025-11-17 2025-09-30 13F/A-1 BERKSHIRE HATHAWAY CLASS CLASS B Common Stock 084670702 41,554 1,788 4.50 20,918 8.63 1.5984
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY CLASS B Common Stock 084670702 39,766 0 19,257 1.5308
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY CLASS B Common Stock 084670702 39,766 5,555 16.24 19,257 6.05 1.7373
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 34,211 1,120 3.38 18,158 20.74 1.8459
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY CLASS B Common Stock 084670702 33,091 2,319 7.54 15,040 6.19 1.4792
2025-02-19 2024-09-30 13F/A-3 BERKSHIRE HATHAWAY Common Stock 084670702 30,772 572 1.89 14,163 15.28 1.8124
2025-02-18 2024-09-30 13F/A-2 BERKSHIRE HATHAWAY Common Stock 084670702 30,772 572 14,163 1.8429
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 30,772 572 14,163 4.6757
2024-07-31 2024-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 30,200 262 0.88 12,285 -2.41 4.4003
2024-05-08 2024-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 29,938 2,958 10.96 12,590 30.84 1.8339
2024-02-14 2023-12-31 13F/A-1 BERKSHIRE HATHAWAY Common Stock 084670702 26,980 -2,455 -8.34 9,623 -6.68 1.6730
2024-02-09 2023-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,980 -2,455 9,623 1.6730
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 29,435 956 3.36 10,311 6.18 1.7268
2023-08-07 2023-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 28,479 862 3.12 9,711 13.85 1.6517
2023-02-07 2022-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 27,617 -93 -0.34 8,531 15.29 1.6843
2022-11-10 2022-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 27,710 984 3.68 7,399 1.40 1.5002
2022-08-05 2022-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,726 -520 -1.91 7,297 -24.11 1.4461
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 27,246 1,051 4.01 9,615 22.77 1.6327
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,195 34 0.13 7,832 9.69 1.2849
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,161 -311 -1.17 7,140 -2.95 1.2919
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,472 91 0.34 7,357 9.15 1.3325
2021-05-11 2021-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 26,381 504 1.95 6,740 12.33 1.3129
2021-02-10 2020-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 25,877 15 0.06 6,000 8.95 1.2476
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 25,862 851 3.40 5,507 23.34 1.3518
2020-08-13 2020-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 25,011 983 4.09 4,465 1.64 1.2134
2020-05-05 2020-03-31 13F/A-1 BERKSHIRE HATHAWAY Common Stock 084670702 24,028 -329 -1.35 4,393 -20.37 1.4558
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 24,357 0 5,517 1,482,156.0979
2020-02-06 2019-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 24,357 -191 -0.78 5,517 8.05 1.4822
2019-11-07 2019-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 24,548 -192 -0.78 5,106 -3.19 1.5706
2019-08-07 2019-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 24,740 134 0.54 5,274 6.70 1.7157
2019-05-07 2019-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 24,606 1,523 6.60 4,943 4.88 1.7579
2019-02-11 2018-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 23,083 3,268 16.49 4,713 10.74 2.1296
2018-11-06 2018-09-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 19,815 9,963 101.13 4,256 129.93 1.7418
2018-08-14 2018-06-30 13F BERKSHIRE HATHAWAY Common Stock 084670702 9,852 150 1.55 1,851 -2.17 1.0323
2018-05-15 2018-03-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 9,702 750 8.38 1,892 4.24 1.0509
2018-02-09 2017-12-31 13F BERKSHIRE HATHAWAY Common Stock 084670702 8,952 8,952 1,815 1.1280
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.