Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionKoss-Olinger Consulting, LLC
Latest Disclosed Ownership15,780 shares
Latest Disclosed Value $ 7,561,776
Koss-Olinger Consulting, LLC reports 6.74% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 7, 2026 - Koss-Olinger Consulting, LLC filed a 13F-HR form disclosing ownership of 15,780 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $28,908,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 9, 2021 disclosing 0 shares of Berkshire Hathaway Inc.. This represents a change in shares of -6.74% during the quarter. The current value of the position is $26,857,560 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)
2026-05-07 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 15,780 -1,141 -6.74 7,562 -11.10 0.6339
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,921 -3,605 -17.56 8,505 -14.70 0.6590
2025-10-20 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,526 -40 -0.19 9,971 -0.19 0.8235
2025-08-01 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,566 -898 -4.18 9,990 -12.61 0.8197
2025-05-12 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,464 993 4.85 11,431 126,911.11 0.9631
2025-02-11 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,471 -206 -1.00 9 -99.91 0.8132
2024-10-21 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,677 -465 -2.20 9,517 10.65 0.8260
2024-08-06 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,142 20,237 2,236.13 8,601 2,163.42 0.7945
2024-04-18 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 905 -20,625 -95.80 381 -95.05 0.2058
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,530 -2,537 -10.54 7,679 -8.92 0.7535
2023-10-11 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,067 -2,508 -9.44 8,431 -6.96 1.2438
2023-07-31 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,575 696 2.69 9,062 13.40 1.0523
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,879 1,432 5.86 7,991 5.81 0.9963
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,447 3,356 15.91 7,552 34.09 1.0862
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,091 6,337 42.95 5,632 39.82 0.9580
2022-07-08 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,754 -1,436 -8.87 4,028 -29.51 0.7346
2022-05-06 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,190 1,622 11.13 5,714 31.18 0.9195
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,568 -1,275 -8.05 4,356 0.74 0.6714
2021-11-09 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,843 -664 -4.02 4,324 -5.75 0.7044
2021-08-11 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,507 700 4.43 4,588 13.62 0.6808
2021-05-14 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,807 15,807 4,038 0.6877
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.