Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionClose Asset Management Ltd
Latest Disclosed Ownership84,346 shares
Latest Disclosed Value $ 40,428
Close Asset Management Ltd reports 0.39% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 12, 2026 - Close Asset Management Ltd filed a 13F-HR form disclosing ownership of 84,346 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $40,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 84,021 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.39% during the quarter.

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 USD0.0033 CL B NEW 084670702 84,346 325 0.39 40 -4.76 1.0958
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 84,021 -590 -0.70 42 0.00 0.9365
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 84,611 -41,178 -32.74 43 -31.15 0.9456
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 125,789 945 0.76 61 -7.58 1.7841
2025-05-06 2025-03-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 124,844 3,298 2.71 67 20.00 1.9134
2025-01-28 2024-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 121,546 0 0.00 55 0.00 1.5528
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 121,546 3,350 2.83 56 14.58 1.7197
2024-08-07 2024-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 118,196 6,467 5.79 48 4.35 1.6359
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 111,729 3,143 2.89 47 21.05 1.7156
2024-02-08 2023-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 108,586 5,399 5.23 39 5.56 1.6224
2023-10-11 2023-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 103,187 4,325 4.37 36 9.09 1.8648
2023-07-26 2023-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 98,862 4,452 4.72 34 13.79 1.5812
2023-04-19 2023-03-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 94,410 575 0.61 29 3.57 1.4409
2023-01-27 2022-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 93,835 1,694 1.84 29 -99.89 1.5399
2022-10-26 2022-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 92,141 3,110 3.49 24,632 1.29 1.3948
2022-07-29 2022-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 89,031 20,099 29.16 24,318 18.00 1.1518
2022-04-27 2022-03-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 68,932 0 0.00 20,608 0.00 0.7352
2022-01-27 2021-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 68,932 2,028 3.03 20,608 12.88 0.7352
2021-11-04 2021-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 66,904 2,701 4.21 18,257 2.38 0.8902
2021-07-27 2021-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 64,203 7,922 14.08 17,832 23.91 0.8525
2021-05-07 2021-03-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 56,281 -3,198 -5.38 14,391 4.36 0.7654
2021-01-22 2020-12-31 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 59,479 3,709 6.65 13,790 16.14 1.0345
2020-10-30 2020-09-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 55,770 8,020 16.80 11,874 39.35 0.8074
2020-07-28 2020-06-30 13F BERKSHIRE HATHAWAY CL B USD0.0033 CL B NEW 084670702 47,750 10,727 28.97 8,521 25.88 0.6330
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 37,023 4,813 14.94 6,769 -7.20 0.6025
2020-01-22 2019-12-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 32,210 2,979 10.19 7,294 19.97 0.5704
2019-11-06 2019-09-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 29,231 2,727 10.29 6,080 7.97 0.5364
2019-08-01 2019-06-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 26,504 5,379 25.46 5,631 32.71 0.4384
2019-05-10 2019-03-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 21,125 -343,650 -94.21 4,243 -88.07 0.3612
2019-01-28 2018-12-31 13F UTD PARCEL SERV CLS B COM USD0.01 CL B 084670702 364,775 342,297 1,522.81 35,575 684.97 3.9374
2018-11-09 2018-09-30 13F/A-2 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 22,478 4,338 23.91 4,532 28.17 0.3656
2018-11-07 2018-09-30 13F/A-1 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 18,140 -4,338 3,536 0.3003
2018-11-02 2018-09-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 18,140 0 3,536
2018-08-03 2018-06-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 18,140 0 0.00 3,536 0.00 0.3004
2018-05-11 2018-03-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 18,140 6,581 56.93 3,536 54.01 0.2860
2018-02-13 2017-12-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 11,559 970 9.16 2,296 18.35 0.2070
2018-02-13 2017-09-30 13F/A-1 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 10,589 563 5.62 1,940 14.18 0.1920
2017-11-14 2017-09-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 6,888 23 1,262
2018-02-13 2017-06-30 13F/A-1 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 10,026 678 7.25 1,699 9.12 0.1896
2017-11-14 2017-06-30 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 6,865 -102 1,163
2018-02-13 2017-03-31 13F/A-1 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 9,348 6,074 185.52 1,557 191.57 0.1642
2017-11-14 2017-03-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 6,967 3,693 1,161
2018-02-13 2016-12-31 13F/A-1 BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 3,274 3,274 534 0.0810
2017-11-14 2016-12-31 13F BERKSHIRE HATHAWAY 'B' US$0.0033 CL B NEW 084670702 3,274 534
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.