Berkshire Hathaway Inc.
PL ˙ WSE
1.702,00 PLN 0,00 (0,00%)
2026-05-07
DEL PRIS
SecurityPL:BRKB / Berkshire Hathaway Inc.
InstitutionCallahan Advisors, LLC
Latest Disclosed Ownership59,689 shares
Latest Disclosed Value $ 28,602,969
Callahan Advisors, LLC reports 0.72% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 12, 2026 - Callahan Advisors, LLC filed a 13F-HR form disclosing ownership of 59,689 shares of Berkshire Hathaway Inc. (PL:BRKB) valued at $109,350,248 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 4 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.72% during the quarter. The current value of the position is $101,590,678 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)
2026-05-12 2026-03-31 13F Berkshire Hathaway Cl B CL B NEW 084670702 59,689 425 0.72 28,603 -3.98 2.3872
2026-02-06 2025-12-31 13F Berkshire Hathaway Cl B CL B NEW 084670702 59,264 364 0.62 29,789 0.60 2.4484
2025-10-31 2025-09-30 13F Berkshire Hathaway Cl B CL B NEW 084670702 58,900 521 0.89 29,611 4.42 2.5150
2025-07-28 2025-06-30 13F Berkshire Hathaway Cl B CL B NEW 084670702 58,379 -29 -0.05 28,359 -8.83 2.5486
2025-05-01 2025-03-31 13F Berkshire Hathaway Cl B CL B NEW 084670702 58,408 -2,303 -3.79 31,107 13.03 2.9645
2025-01-31 2024-12-31 13F Berkshire Hathaway Cl B CL B NEW 084670702 60,711 976 1.63 27,519 0.09 2.5900
2024-10-30 2024-09-30 13F Berkshire Hathaway Cl B CL B NEW 084670702 59,735 -1,616 -2.63 27,494 10.16 2.6787
2024-07-29 2024-06-30 13F Berkshire Hathaway Cl B COM 084670702 61,351 -1,096 -1.76 24,958 -4.96 2.5950
2024-04-24 2024-03-31 13F Berkshire Hathaway Cl B COM 084670702 62,447 -140 -0.22 26,260 17.64 2.7541
2024-01-24 2023-12-31 13F Berkshire Hathaway Cl B COM 084670702 62,587 -5 -0.01 22,322 1.81 2.5897
2023-10-23 2023-09-30 13F Berkshire Hathaway Cl B COM 084670702 62,592 33 0.05 21,926 2.78 2.7540
2023-07-31 2023-06-30 13F Berkshire Hathaway Cl B COM 084670702 62,559 928 1.51 21,333 12.10 2.5924
2023-04-28 2023-03-31 13F Berkshire Hathaway Cl B COM 084670702 61,631 979 1.61 19,030 1.57 2.4581
2023-02-03 2022-12-31 13F Berkshire Hathaway Cl B COM 084670702 60,652 2,461 4.23 18,735 20.58 2.5637
2022-11-14 2022-09-30 13F/A-1 Berkshire Hathaway Cl B COM 084670702 58,191 4,081 7.54 15,538 5.18 2.2313
2022-10-27 2022-09-30 13F Berkshire Hathaway Cl B COM 084670702 58,191 4,081 15,538 2.2313
2022-07-29 2022-06-30 13F Berkshire Hathaway Cl B COM 084670702 54,110 1,268 2.40 14,773 -20.78 1.9664
2022-04-27 2022-03-31 13F Berkshire Hathaway Cl B COM 084670702 52,842 736 1.41 18,648 19.69 2.1279
2022-02-08 2021-12-31 13F Berkshire Hathaway Cl B COM 084670702 52,106 648 1.26 15,580 10.93 1.7479
2021-11-03 2021-09-30 13F Berkshire Hathaway Cl B COM 084670702 51,458 402 0.79 14,045 -1.01 1.7699
2021-08-11 2021-06-30 13F Berkshire Hathaway Cl B COM 084670702 51,056 696 1.38 14,189 10.29 1.8011
2021-04-21 2021-03-31 13F Berkshire Hathaway Cl B COM 084670702 50,360 1,184 2.41 12,865 12.83 1.7421
2021-01-20 2020-12-31 13F Berkshire Hathaway Cl B COM 084670702 49,176 -1,560 -3.07 11,402 5.53 1.6685
2020-10-26 2020-09-30 13F Berkshire Hathaway Cl B COM 084670702 50,736 -4,891 -8.79 10,804 8.80 1.7666
2020-07-17 2020-06-30 13F Berkshire Hathaway Cl B COM 084670702 55,627 -4,495 -7.48 9,930 -9.66 1.7605
2020-04-06 2020-03-31 13F Berkshire Hathaway Cl B COM 084670702 60,122 -1,164 -1.90 10,992 -20.81 2.3076
2020-01-21 2019-12-31 13F Berkshire Hathaway Cl B COM 084670702 61,286 -245 -0.40 13,881 8.45 2.2255
2019-10-21 2019-09-30 13F Berkshire Hathaway Cl B COM 084670702 61,531 328 0.54 12,800 -1.89 2.2357
2019-07-17 2019-06-30 13F Berkshire Hathaway Cl B COM 084670702 61,203 -120 -0.20 13,047 5.91 2.3414
2019-04-22 2019-03-31 13F Berkshire Hathaway Cl B COM 084670702 61,323 1,253 2.09 12,319 0.44 2.2931
2019-01-24 2018-12-31 13F Berkshire Hathaway Cl B COM 084670702 60,070 675 1.14 12,265 -3.55 2.6186
2018-10-15 2018-09-30 13F Berkshire Hathaway Cl B COM 084670702 59,395 160 0.27 12,717 15.02 2.3595
2018-07-19 2018-06-30 13F Berkshire Hathaway Cl B COM 084670702 59,235 -280 -0.47 11,056 -6.87 2.1791
2018-04-30 2018-03-31 13F Berkshire Hathaway Cl B COM 084670702 59,515 133 0.22 11,872 0.86 2.4339
2018-01-30 2017-12-31 13F Berkshire Hathaway Cl B COM 084670702 59,382 -11 -0.02 11,771 8.11 2.3368
2017-10-26 2017-09-30 13F Berkshire Hathaway Cl B COM 084670702 59,393 86 0.15 10,888 8.39 2.2894
2017-07-31 2017-06-30 13F Berkshire Hathaway Cl B COM 084670702 59,307 2,241 3.93 10,045 5.60 2.1862
2017-04-27 2017-03-31 13F Berkshire Hathaway Cl B COM 084670702 57,066 3,631 6.80 9,512 9.22 2.1414
2017-01-31 2016-12-31 13F Berkshire Hathaway Cl B COM 084670702 53,435 1,702 3.29 8,709 16.52 2.0993
2016-10-14 2016-09-30 13F Berkshire Hathaway Cl B COM 084670702 51,733 5,168 11.10 7,474 10.86 1.8702
2016-07-25 2016-06-30 13F Berkshire Hathaway Cl B COM 084670702 46,565 1,065 2.34 6,742 4.43 1.7707
2016-04-29 2016-03-31 13F Berkshire Hathaway Cl B COM 084670702 45,500 2,665 6.22 6,456 14.14 1.7695
2016-02-05 2015-12-31 13F Berkshire Hathaway Cl B COM 084670702 42,835 2,885 7.22 5,656 8.58 1.6131
2015-10-21 2015-09-30 13F Berkshire Hathaway Cl B COM 084670702 39,950 1,485 3.86 5,209 -0.50 1.5995
2015-07-28 2015-06-30 13F Berkshire Hathaway Cl B COM 084670702 38,465 1,240 3.33 5,235 -2.55 1.5069
2015-04-20 2015-03-31 13F Berkshire Hathaway Cl B COM 084670702 37,225 37,225 0.00 5,372 1.5656
2015-01-27 2014-12-31 13F Berkshire Hathaway Cl B COM 084670702 0 -37,315 -100.00 0 -100.00
2014-10-21 2014-09-30 13F Berkshire Hathaway Cl B COM 084670702 37,315 665 1.81 5,155 11.15 1.5971
2014-07-25 2014-06-30 13F Berkshire Hathaway Cl B COM 084670702 36,650 255 0.70 4,638 1.98 1.4737
2014-05-05 2014-03-31 13F Berkshire Hathaway Cl B COM 084670702 36,395 495 1.38 4,548 6.86 1.5484
2014-01-22 2013-12-31 13F Berkshire Hathaway Cl B COM 084670702 35,900 400 1.13 4,256 5.61 1.4841
2013-10-31 2013-09-30 13F Berkshire Hathaway Cl B COM 084670702 35,500 2,785 8.51 4,030 10.08 1.5370
2013-07-30 2013-06-30 13F Berkshire Hathaway Cl B COM 084670702 32,715 32,715 3,661 1.4973
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.