Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionBronte Capital Management Pty Ltd.
Latest Disclosed Ownership155,063 shares
Latest Disclosed Value $ 74,306,190
Bronte Capital Management Pty Ltd. reports 4.47% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 27, 2026 - Bronte Capital Management Pty Ltd. filed a 13F-HR form disclosing ownership of 155,063 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $284,075,416 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 162,327 shares of Berkshire Hathaway Inc.. This represents a change in shares of -4.47% during the quarter. The current value of the position is $263,917,226 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)
2026-04-27 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 155,063 -7,264 -4.47 74,306 -8.93 7.3583
2026-02-03 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 162,327 -12,401 -7.10 81,594 -16.88 8.1383
2025-11-05 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 174,728 -45,576 -20.69 98,166 -18.68 8.7902
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 220,304 2,274 1.04 120,720 -11.12 9.4830
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 218,030 -1,805 -0.82 135,829 16.25 11.0350
2025-02-10 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 219,835 -111,419 -33.64 116,842 -23.36 9.2202
2024-11-05 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 331,254 -9,779 -2.87 152,463 9.90 12.3901
2024-08-07 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 341,033 -20,207 -5.59 138,732 -8.67 10.8594
2024-05-13 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 361,240 -53,394 -12.88 151,909 2.72 12.3990
2024-02-07 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 414,634 5,023 1.23 147,883 3.06 13.2105
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 409,611 11,305 2.84 143,487 5.64 14.4528
2023-08-08 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 398,306 4,577 1.16 135,822 11.72 13.1024
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 393,729 -18,148 -4.41 121,572 95,625.20 14.1044
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 411,877 -12,320 -2.90 127 -99.89 16.0526
2022-11-03 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 424,197 -2,497 -0.59 113,269 -2.77 14.1068
2022-08-08 2022-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 426,694 365,649 598.98 116,496 3,892.32 13.3519
2022-08-08 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 426,694 365,649 116,496 13.3519
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 61,045 -354,791 -85.32 2,918 -97.65 0.2452
2022-02-10 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 415,836 -722 -0.17 124,335 9.36 8.2013
2021-11-09 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 416,558 -7,435 -1.75 113,695 -3.51 8.3185
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC-CL B CL B NEW 084670702 423,993 -3,711 -0.87 117,836 7.84 8.4022
2021-04-13 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 427,704 -63,740 -12.97 109,266 -4.11 12.3934
2021-02-03 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 491,444 -3,739 -0.76 113,951 13.98 18.0044
2020-12-16 2020-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 495,183 89,570 22.08 99,977 38.08 17.6060
2020-11-12 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 495,183 89,570 99,977 17,605,986.0035
2020-08-11 2020-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 405,613 20,002 5.19 72,406 2.70 12.7003
2020-08-10 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 405,613 20,002 72,406 12,436,619.7183
2020-05-08 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 385,611 23,004 6.34 70,501 -14.16 11.5416
2020-01-29 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 362,607 13,924 3.99 82,130 13.23 15.9332
2019-11-08 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 348,683 70,243 25.23 72,533 22.20 20.0561
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 278,440 0 0.00 59,355 6.11 21.1536
2019-05-10 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 278,440 845 0.30 55,936 -1.31 20.9913
2019-02-13 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 277,595 277,595 56,679 22.6090
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.