Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionCornerstone Wealth Management, LLC
Latest Disclosed Ownership16,109 shares
Latest Disclosed Value $ 7,719,434
Cornerstone Wealth Management, LLC reports 9.35% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 23, 2026 - Cornerstone Wealth Management, LLC filed a 13F-HR form disclosing ownership of 16,109 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $29,511,688 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 14,732 shares of Berkshire Hathaway Inc.. This represents a change in shares of 9.35% during the quarter. The current value of the position is $27,417,518 USD.

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)
2026-04-23 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,109 1,377 9.35 7,719 4.24 0.3861
2026-02-05 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,732 835 6.01 7,405 6.00 0.3852
2025-11-04 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,897 590 4.43 6,987 8.09 0.3859
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,307 497 3.88 6,464 -5.26 0.3924
2025-04-18 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,810 5 0.04 6,822 17.54 0.4617
2025-01-21 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,805 387 3.12 5,804 1.56 0.3918
2024-10-16 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,418 54 0.44 5,716 13.64 0.4024
2024-07-16 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,364 82 0.67 5,030 -2.61 0.3870
2024-04-19 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,282 -208 -1.67 5,165 15.94 0.4181
2024-01-10 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,490 240 1.96 4,455 3.82 0.3831
2023-11-07 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,250 234 1.95 4,291 4.71 0.4050
2023-07-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,016 -197 -1.61 4,097 8.64 0.3659
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,213 340 2.86 3,771 18.96 0.3704
2022-10-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,873 -232 -1.92 3,170 -4.08 0.3529
2022-08-04 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,105 996 8.97 3,305 -15.69 0.3664
2022-04-21 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,109 70 0.63 3,920 18.79 0.3809
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,039 -68 -0.61 3,300 8.84 0.3146
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,107 37 0.33 3,032 -1.46 0.3226
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,070 287 2.66 3,077 11.69 0.3239
2021-04-30 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,783 13 0.12 2,755 10.33 0.3258
2021-01-29 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,770 240 2.28 2,497 11.37 0.3135
2020-10-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,530 -313 -2.89 2,242 15.81 0.3324
2020-07-16 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,843 -1,463 -11.89 1,936 -13.96 0.3131
2020-05-13 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,306 -502 -3.92 2,250 -22.44 0.4338
2020-02-20 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,808 -416 -3.15 2,901 5.45 0.4700
2019-10-28 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,224 -765 -5.47 2,751 -7.75 0.4853
2019-08-02 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,989 -1,275 -8.35 2,982 13.30 0.5356
2019-05-13 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,264 2,542 19.98 2,632 1.62 0.3197
2019-02-13 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,722 -1,662,415 -99.24 2,590 -71.01 0.5532
2018-10-19 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,675,137 -552,533 -24.80 8,934 -24.67 0.1124
2018-07-20 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,227,670 2,216,492 19,829.06 11,860 442.54 0.1337
2018-04-24 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,178 998 9.80 2,186 6.12 0.4170
2018-02-09 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,180 1,246 13.95 2,060 22.55 0.3866
2017-11-14 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,934 -196 -2.15 1,681 7.83 0.3483
2017-08-11 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,130 2,020 28.41 1,559 32.57 0.3496
2017-05-11 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,110 2,370 50.00 1,176 51.55 0.2908
2017-02-14 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,740 809 20.58 776 37.83 0.2489
2016-10-31 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,931 3,931 563 0.2079
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.