Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionMuhlenkamp & Co Inc
Latest Disclosed Ownership38,351 shares
Latest Disclosed Value $ 18,377,799
Muhlenkamp & Co Inc reports 0.16% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 6, 2026 - Muhlenkamp & Co Inc filed a 13F-HR form disclosing ownership of 38,351 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $70,259,032 USD as of March 31, 2026. The current value of the position is $65,273,402 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)
2026-05-06 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,351 -60 -0.16 18,378 -4.82 4.8389
2026-02-04 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,411 31 0.08 19,307 0.06 5.1926
2025-11-07 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,380 29 0.08 19,295 3.58 5.2448
2025-07-24 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,351 213 0.56 18,630 -8.28 5.8131
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,138 -34 -0.09 20,312 17.39 6.6454
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,172 48 0.13 17,303 -1.40 5.2517
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,124 -18 -0.05 17,547 13.09 5.3770
2024-07-17 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,142 -41 -0.11 15,516 -3.36 4.8422
2024-04-23 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,183 334 0.88 16,057 18.94 4.6639
2024-01-08 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,849 289 0.77 13,499 2.60 4.4157
2023-12-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,560 -86 -0.23 13,157 2.49 4.5408
2023-07-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,646 216 0.58 12,837 11.03 4.5491
2023-01-31 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,430 36 0.10 11,562 15.79 4.8984
2022-11-01 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,394 200 0.54 9,985 -1.67 4.4584
2022-07-18 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,194 78 0.21 10,155 -22.47 4.7553
2022-04-01 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,116 145 0.39 13,099 18.50 4.5618
2022-03-29 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,971 -4 -0.01 11,054 9.53 3.8524
2021-12-10 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,975 -58 -0.16 10,092 -1.94 3.8750
2021-08-18 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,033 58 0.16 10,292 -3.71 3.7754
2021-08-18 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,975 56 0.15 10,689 24.87 3.9538
2021-02-11 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,919 230 0.63 8,560 9.56 3.4447
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,689 285 0.78 7,813 20.24 4.0458
2020-08-20 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,404 86 0.24 6,498 -21.01 3.4754
2020-02-20 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,318 -4 -0.01 8,226 8.87 3.5950
2019-11-27 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,322 36,322 7,556 3.6838
2015-08-04 2015-06-30 13F Berkshire Hathaway CL B COM 084670702 0 -112,530 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Berkshire Hathaway CL B COM 084670702 112,530 -145 -0.13 16,240 -4.01 3.4207
2015-02-13 2014-12-31 13F Berkshire Hathaway CL B COM 084670702 112,675 -150 -0.13 16,918 8.55 3.3924
2014-11-14 2014-09-30 13F Berkshire Hathaway CL B COM 084670702 112,825 -5,000 -4.24 15,586 4.52 2.8159
2014-08-14 2014-06-30 13F Berkshire Hathaway CL B COM 084670702 117,825 475 0.40 14,912 1.68 2.6309
2014-05-14 2014-03-31 13F Berkshire Hathaway CL B COM 084670702 117,350 -285 -0.24 14,665 5.15 2.5790
2014-02-14 2013-12-31 13F Berkshire Hathaway CL B COM 084670702 117,635 4,050 3.57 13,947 8.17 2.4291
2013-11-12 2013-09-30 13F Berkshire Hathaway CL B COM 084670702 113,585 385 0.34 12,893 1.77 2.5628
2013-08-19 2013-06-30 13F Berkshire Hathaway CL B COM 084670702 113,200 113,200 12,669 2.6395
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.