Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionBlack Swift Group, LLC
Latest Disclosed Ownership2,700 shares
Latest Disclosed Value $ 1,293,840
Black Swift Group, LLC reports 21.17% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 24, 2026 - Black Swift Group, LLC filed a 13F-HR form disclosing ownership of 2,700 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $4,946,400 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 3,425 shares of Berkshire Hathaway Inc.. This represents a change in shares of -21.17% during the quarter. The current value of the position is $4,595,400 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)
2026-04-24 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,700 -725 -21.17 1,294 -24.87 0.2266
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,425 -900 -20.81 1,722 -20.84 0.2870
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,325 -370 -7.88 2,174 -4.65 0.3832
2025-08-06 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,695 20 0.43 2,281 -8.40 0.4603
2025-05-06 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,675 -804 -14.67 2,490 0.24 0.5630
2025-02-06 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,479 -521 -8.68 2,484 -10.07 0.5266
2024-11-06 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,000 -1,250 -17.24 2,762 -6.38 0.6093
2024-08-06 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,250 -1,500 -17.14 2,949 -19.84 0.6812
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,750 -1,250 -12.50 3,680 3.17 0.9434
2024-01-23 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,000 -340 -3.29 3,567 -1.55 1.0707
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 10,340 -313 -2.94 3,622 -0.28 1.1825
2023-07-20 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,653 -297 -2.71 3,633 7.42 1.2366
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,950 -160 -1.44 3,381 -1.46 1.1781
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 11,110 11,110 3,432 1.3739
2022-10-11 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -11,138 -100.00 0 -100.00
2022-08-08 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,138 3 0.03 3,041 -22.62 1.4127
2022-05-11 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,135 -38 -0.34 3,930 17.63 1.5485
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,173 9,023 419.67 3,341 469.17 0.9594
2021-11-01 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 0 0.00 587 -1.84 0.1728
2021-08-10 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 0 0.00 598 8.93 0.2906
2021-05-05 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 -199 -8.47 549 0.73 0.1743
2021-02-01 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,349 199 9.26 545 19.00 0.3598
2021-02-05 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 0 0.00 458 19.27 0.2327
2021-02-05 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 0 0.00 384 -2.29 0.2753
2021-02-09 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,150 -850 -28.33 393 -42.21 0.3909
2021-02-09 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,000 0 0.00 680 8.97 1.0201
2021-02-09 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,000 3,000 624 0.9122
2021-02-09 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -74 -100.00 0 -100.00
2021-02-10 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 74 70 1,750.00 15 1,400.00 0.0211
2021-02-10 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4 0 0.00 1 0.00 0.0028
2021-02-11 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4 4 1 0.0006
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.