Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionSeascape Capital Management
Latest Disclosed Ownership1,958 shares
Latest Disclosed Value $ 938
Seascape Capital Management ownership in BRKB / Berkshire Hathaway Inc.

On April 28, 2026 - Seascape Capital Management filed a 13F-HR form disclosing ownership of 1,958 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $3,587,056 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 1,958 shares of Berkshire Hathaway Inc.. The current value of the position is $3,332,516 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)
2026-04-28 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,958 0 0.00 1 0.2701
2026-01-21 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,958 -731 -27.18 1 -100.00 0.2797
2025-10-20 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,689 31 1.17 1 0.00 0.3878
2025-07-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,658 -190 -6.67 1 0.00 0.4070
2025-04-29 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,848 224 8.54 2 0.00 0.5291
2025-01-30 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,624 -2 -0.08 1 0.00 0.4141
2024-11-01 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,626 5 0.19 1 0.00 0.4311
2024-07-30 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,621 0 0.00 1 0.00 0.3975
2024-04-29 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,621 -1 -0.04 1 0.4095
2024-01-29 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,622 1,549 144.36 1 0.3945
2023-11-09 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,073 6 0.56 0 0.1782
2023-08-04 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,067 72 7.24 0 0.1725
2023-05-01 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 995 19 1.95 0 0.1566
2023-01-31 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 976 57 6.20 0 -100.00 0.1643
2022-11-08 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 919 44 5.03 245 2.51 0.1678
2022-08-09 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 875 -13 -1.46 239 -23.64 0.1450
2022-05-09 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 888 29 3.38 313 21.79 0.1623
2022-01-27 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 859 19 2.26 257 12.23 0.1205
2021-11-05 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 840 -1 -0.12 229 -2.14 0.1174
2021-08-04 2021-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 841 20 2.44 234 11.43 0.1218
2021-08-04 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 821 0 210 0.1168
2021-04-29 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 821 821 210 0.1168
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.