Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionBlume Capital Management, Inc.
Latest Disclosed Ownership11,295 shares
Latest Disclosed Value $ 5,412,564
Blume Capital Management, Inc. reports 0.89% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 1, 2026 - Blume Capital Management, Inc. filed a 13F-HR form disclosing ownership of 11,295 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $20,692,440 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 11,195 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.89% during the quarter. The current value of the position is $19,224,090 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)
2026-05-01 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,295 100 0.89 5,413 -3.82 0.9204
2026-02-05 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,195 -100 -0.89 5,627 -0.90 1.0237
2025-11-06 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,295 0 0.00 5,678 3.50 1.0790
2025-07-30 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,295 -153 -1.34 5,487 -10.01 1.1039
2025-05-06 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,448 -97 -0.84 6,097 16.49 1.3642
2025-02-10 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,545 -150 -1.28 5,233 -2.77 1.1722
2024-10-29 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,695 -55 -0.47 5,383 12.62 1.2037
2024-08-05 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,750 0 0.00 4,780 -3.28 1.1523
2024-05-02 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,750 -135 -1.14 4,941 16.59 1.1937
2024-05-02 2023-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,885 -162 -1.34 4,239 0.43 1.1081
2024-02-07 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,885 -162 4,239 1.1081
2024-05-02 2023-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,047 -75 -0.62 4,220 2.11 1.2488
2023-11-03 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,047 -75 4,220 1.2488
2024-05-02 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,122 0 0.00 4,134 10.45 1.2099
2023-08-10 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,122 0 4,134 1.2099
2024-05-02 2023-03-31 13F/A-1 Berkshire Hathaway B CL B NEW 084670702 12,122 -103 -0.84 3,743 -0.90 1.1859
2023-05-08 2023-03-31 13F Berkshire Hathaway B CL B NEW 084670702 12,122 -103 3,743 1.1859
2023-02-08 2022-12-31 13F Berkshire Hathaway B CL B NEW 084670702 12,225 -60 -0.49 3,776 15.12 1.2753
2022-11-15 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,285 -15 -0.12 3,280 -2.32 1.2354
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,300 406 3.41 3,358 -20.01 1.3263
2022-05-12 2022-03-31 13F Berkshire Hathaway B CL B NEW 084670702 11,894 -169 -1.40 4,198 16.38 1.3845
2022-02-07 2021-12-31 13F Berkshire Hathaway B CL B NEW 084670702 12,063 -875 -6.76 3,607 2.15 1.1905
2021-11-12 2021-09-30 13F Berkshire Hathaway B CL B NEW 084670702 12,938 200 1.57 3,531 -0.25 1.2916
2021-08-10 2021-06-30 13F Berkshire Hathaway B CL B NEW 084670702 12,738 -255 -1.96 3,540 6.66 1.2948
2021-05-10 2021-03-31 13F Berkshire Hathaway B CL B NEW 084670702 12,993 1,002 8.36 3,319 19.39 1.3067
2021-02-09 2020-12-31 13F Berkshire Hathaway B CL B NEW 084670702 11,991 186 1.58 2,780 10.58 1.1893
2020-11-12 2020-09-30 13F Berkshire Hathaway B CL B NEW 084670702 11,805 500 4.42 2,514 24.58 1.2750
2020-08-06 2020-06-30 13F Berkshire Hathaway B CL B NEW 084670702 11,305 160 1.44 2,018 -0.93 1.1182
2020-05-07 2020-03-31 13F Berkshire Hathaway B CL B NEW 084670702 11,145 50 0.45 2,037 -18.94 1.3046
2020-02-05 2019-12-31 13F Berkshire Hathaway B CL B NEW 084670702 11,095 -2,170 -16.36 2,513 -8.92 1.2296
2019-11-12 2019-09-30 13F Berkshire Hathaway B CL B NEW 084670702 13,265 -150 -1.12 2,759 -3.53 1.3779
2019-07-29 2019-06-30 13F Berkshire Hathaway B CL B NEW 084670702 13,415 166 1.25 2,860 7.44 1.4480
2019-05-06 2019-03-31 13F Berkshire Hathaway B CL B NEW 084670702 13,249 -125 -0.93 2,662 -2.53 1.3975
2019-02-05 2018-12-31 13F Berkshire Hathaway B CL B NEW 084670702 13,374 0 0.00 2,731 -4.64 1.5594
2018-11-02 2018-09-30 13F Berkshire Hathaway B CL B NEW 084670702 13,374 -50 -0.37 2,864 14.29 1.4963
2018-08-02 2018-06-30 13F Berkshire Hathaway B CL B NEW 084670702 13,424 -75 -0.56 2,506 -6.91 1.3670
2018-05-04 2018-03-31 13F Berkshire Hathaway B CL B NEW 084670702 13,499 -430 -3.09 2,692 -2.50 1.4972
2018-02-09 2017-12-31 13F Berkshire Hathaway B CL B NEW 084670702 13,929 -175 -1.24 2,761 6.77 1.4134
2018-02-14 2017-09-30 13F/A-1 Berkshire Hathaway B CL B NEW 084670702 14,104 -335 -2.32 2,586 5.72 1.3677
2017-11-13 2017-09-30 13F Berkshire Hathaway B CL B NEW 084670702 14,104 -335 2,586
2017-08-08 2017-06-30 13F Berkshire Hathaway B CL B NEW 084670702 14,439 -68 -0.47 2,446 1.16 1.3890
2017-05-12 2017-03-31 13F Berkshire Hathaway B CL B NEW 084670702 14,507 -82 -0.56 2,418 1.68 1.3995
2017-01-30 2016-12-31 13F Berkshire Hathaway B CL B NEW 084670702 14,589 -138 -0.94 2,378 11.75 1.4291
2016-11-07 2016-09-30 13F Berkshire Hathaway B CL B NEW 084670702 14,727 -74 -0.50 2,128 -0.70 1.3036
2016-08-11 2016-06-30 13F/A-1 Berkshire Hathaway B CL B NEW 084670702 14,801 325 2.25 2,143 4.33 1.4137
2016-08-04 2016-06-30 13F Berkshire Hathaway B CL B NEW 084670702 8,453 2,143
2016-05-12 2016-03-31 13F Berkshire Hathaway B CL B NEW 084670702 14,476 230 1.61 2,054 9.20 1.4185
2016-05-26 2015-12-31 13F/A-1 Berkshire Hathaway B CL B NEW 084670702 14,246 -1,140 -7.41 1,881 -6.23 1.3300
2016-02-08 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,646 1,934
2015-11-05 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,386 0 0.00 2,006 -4.20 1.6272
2015-08-11 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,386 -1,150 -6.95 2,094 -12.24 1.5842
2015-05-05 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,536 500 3.12 2,386 -0.91 1.6545
2015-02-10 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,036 550 3.55 2,408 12.58 1.6974
2014-11-12 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,486 -100 -0.64 2,139 8.41 1.6645
2014-07-29 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,586 -250 -1.58 1,973 -0.30 1.5488
2014-05-13 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,836 -1,600 -9.18 1,979 -4.26 1.5711
2014-02-14 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,436 17,436 2,067 1.7097
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.