Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionHudock, Inc.
Latest Disclosed Ownership28,452 shares
Latest Disclosed Value $ 13,634,496
Hudock, Inc. reports 9.77% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Hudock, Inc. filed a 13F-HR form disclosing ownership of 28,452 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $13,634,496 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 1, 2018 disclosing 0 shares of Berkshire Hathaway Inc.. This represents a change in shares of 9.77% 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,452 2,532 9.77 13,634 4.65 2.0060
2026-02-12 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,920 673 2.67 13,029 2.65 1.9197
2025-10-24 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,247 159 0.63 12,693 4.14 1.9279
2025-08-08 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,088 1,037 4.31 12,187 -4.86 1.9592
2025-05-02 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,051 74 0.31 12,809 17.86 2.2400
2025-01-29 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,977 -607 -2.47 10,869 -3.95 1.8982
2024-10-23 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,584 -297 -1.19 11,315 11.80 1.9548
2024-08-02 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,881 1,171 4.94 10,122 1.51 1.8873
2024-05-02 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,710 -77 -0.32 9,971 17.52 2.1963
2024-01-22 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,787 403 1.72 8,484 3.58 1.8189
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,384 328 1.42 8,192 4.18 1.9545
2023-07-31 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,056 138 0.60 7,862 11.11 1.8620
2023-05-08 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,918 15,899 226.51 7,077 226.38 1.7373
2023-02-08 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,019 -54 -0.76 2,168 14.83 0.7411
2022-11-02 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 7,073 147 2.12 1,888 -0.11 0.6376
2022-08-02 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,926 831 13.63 1,890 -12.09 0.6316
2022-05-02 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,095 -73 -1.18 2,150 16.59 0.5968
2022-01-19 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,168 0 0.00 1,844 9.57 0.5192
2021-11-09 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,168 0 0.00 1,683 -1.81 0.5069
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,168 -175 -2.76 1,714 5.80 0.5097
2021-04-26 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,343 1 0.02 1,620 10.20 0.5072
2021-02-05 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,342 -1 -0.02 1,470 8.89 0.4785
2020-10-23 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,343 1 0.02 1,350 19.26 0.4995
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,342 5 0.08 1,132 -2.25 0.4130
2020-04-27 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,337 138 2.23 1,158 -18.16 0.4554
2020-01-21 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,199 202 3.37 1,415 13.47 0.4698
2019-10-31 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 5,997 0 0.00 1,247 -2.43 0.4417
2019-07-30 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 5,997 -670 -10.05 1,278 -4.56 0.4621
2019-04-23 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,667 0 0.00 1,339 -0.59 0.4833
2019-01-29 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,667 0 0.00 1,347 -5.61 0.5596
2018-10-16 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,667 0 0.00 1,427 14.71 0.5534
2018-08-01 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,667 0 0.00 1,244 -6.40 0.4951
2018-04-27 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 6,667 2,001 42.88 1,329 43.83 0.5518
2018-01-30 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 4,666 0 0.00 924 8.07 0.4033
2017-10-27 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 4,666 -350 -6.98 855 0.71 0.4002
2017-08-08 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 5,016 393 8.50 849 10.26 0.4381
2017-04-26 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 4,623 -310 -6.28 770 -4.11 0.4124
2017-02-08 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 4,933 0 0.00 803 12.78 0.4544
2016-11-03 2016-09-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 4,933 -770 -13.50 712 -13.70 0.4033
2016-08-01 2016-06-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 5,703 210 3.82 825 5.91 0.4500
2016-05-05 2016-03-31 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 5,493 2,400 77.59 779 90.93 0.4310
2016-02-01 2015-12-31 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 3,093 8 0.26 408 1.49 0.1816
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 3,085 0 0.00 402 -4.06 0.1885
2015-08-13 2015-06-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 3,085 95 3.18 419 -3.01 0.1912
2015-05-05 2015-03-31 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 2,990 2,990 0.00 432 0.1914
2015-02-03 2014-12-31 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 0 -3,440 -100.00 0 -100.00
2014-11-14 2014-09-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 3,440 0 0.00 475 9.20 0.2933
2014-08-14 2014-06-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 3,440 480 16.22 435 17.57 0.4962
2014-05-15 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,960 -4 -0.13 370 5.41 0.3077
2014-02-12 2013-12-31 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 2,964 0 0.00 351 4.46 0.2977
2013-10-18 2013-09-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 2,964 0 0.00 336 1.20 0.3260
2013-07-31 2013-06-30 13F BERKSHIRE HATHAWAYINC DEL CL B CL B NEW 084670702 2,964 2,964 332 0.4885
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.