Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionK.J. Harrison & Partners Inc
Latest Disclosed Ownership28,908 shares
Latest Disclosed Value $ 13,852,714
K.J. Harrison & Partners Inc reports 0.02% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 28, 2026 - K.J. Harrison & Partners Inc filed a 13F-HR form disclosing ownership of 28,908 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $13,852,714 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 16 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.02% 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)
2026-04-28 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,908 7 0.02 13,853 -4.65 2.2776
2026-02-03 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,901 0 0.00 14,527 1.36 1.9312
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,901 -20 -0.07 14,333 2.02 2.0505
2025-08-05 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,921 0 0.00 14,049 -8.79 2.3277
2025-04-25 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,921 89 0.31 15,403 18.42 3.0097
2025-02-05 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,832 1,093 3.94 13,006 1.02 2.0393
2024-10-25 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,739 -69 -0.25 12,875 13.82 1.9438
2024-07-26 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,808 -343 -1.22 11,312 -4.44 1.8619
2024-04-26 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,151 0 0.00 11,838 17.91 1.8311
2024-02-02 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,151 -8 -0.03 10,040 1.78 1.7028
2023-10-31 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,159 0 0.00 9,864 3.10 2.2256
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,159 32 0.11 9,568 10.17 1.7353
2023-04-25 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,127 0 0.00 8,685 -26.20 1.7558
2023-01-25 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,127 0 0.00 11,768 56.68 2.3013
2022-10-21 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,127 -5,100 -15.35 7,510 -17.30 2.6554
2022-07-27 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 33,227 -1,830 -5.22 9,081 -26.60 2.4491
2022-04-21 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 35,057 3,300 10.39 12,372 30.09 1.9857
2022-01-26 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 31,757 -375 -1.17 9,510 7.82 1.3445
2021-11-05 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 32,132 0 0.00 8,820 -1.32 1.2834
2021-08-04 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 32,132 -980 -2.96 8,938 5.68 0.9362
2021-05-14 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 33,112 -7,000 -17.45 8,458 -9.06 1.3076
2021-02-08 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 40,112 20,420 103.70 9,301 121.61 1.5129
2020-11-09 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,692 -3,287 -14.30 4,197 2.32 0.8667
2020-08-03 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,979 -3,815 -14.24 4,102 -16.27 1.1215
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,794 2,330 9.52 4,899 -11.59 2.7294
2020-01-27 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,464 1,767 7.79 5,541 17.37 1.3914
2019-10-25 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,697 -730 -3.12 4,721 -5.47 1.3128
2019-08-05 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,427 0 0.00 4,994 6.12 1.5902
2019-04-26 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,427 -32 -0.14 4,706 -1.75 1.6415
2019-01-24 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,459 176 0.76 4,790 -3.91 2.9268
2018-10-26 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,283 743 3.30 4,985 18.49 1.2816
2018-07-26 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,540 0 0.00 4,207 -6.43 1.2132
2018-04-30 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,540 163 0.73 4,496 1.35 1.4684
2018-01-26 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,377 280 1.27 4,436 9.50 1.4989
2017-10-27 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,097 0 0.00 4,051 8.23 1.3935
2017-07-28 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,097 -2,065 -8.55 3,743 -7.05 1.4676
2017-04-26 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,162 -2,140 -8.14 4,027 -6.06 1.6485
2017-02-01 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,302 -2,580 -8.93 4,287 2.73 1.7110
2016-10-26 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,882 0 0.00 4,173 -0.22 1.9867
2016-07-26 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,882 -50 -0.17 4,182 1.88 2.2396
2016-04-26 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,932 150 0.52 4,105 8.03 2.1955
2016-02-01 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,782 700 2.49 3,800 3.77 1.6666
2015-10-28 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,082 0 0.00 3,662 -4.19 1.7928
2015-08-04 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,082 2,000 7.67 3,822 1.54 1.1368
2015-04-17 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,082 0 0.00 3,764 -3.88 1.0979
2015-01-22 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,082 0 0.00 3,916 8.69 1.1310
2014-10-23 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,082 0 0.00 3,603 9.15 1.0093
2014-07-17 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,082 0 0.00 3,301 1.69 0.9413
2014-04-23 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,082 -1,550 -5.61 3,246 -6.83 0.9633
2014-01-31 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,632 0 0.00 3,484 11.06 1.0259
2013-10-17 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,632 -960 -3.36 3,137 -1.97 1.1424
2013-07-17 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,592 28,592 3,200 1.2863
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.