Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionCLARET ASSET MANAGEMENT Corp
Latest Disclosed Ownership95,336 shares
Latest Disclosed Value $ 45,685
CLARET ASSET MANAGEMENT Corp reports 1.01% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 11, 2026 - CLARET ASSET MANAGEMENT Corp filed a 13F-HR form disclosing ownership of 95,336 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $45,685 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 96,306 shares of Berkshire Hathaway Inc.. This represents a change in shares of -1.01% 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)
2026-05-11 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 95,336 -970 -1.01 46 -6.25 5.4571
2026-02-11 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 96,306 413 0.43 48 0.00 5.6175
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 95,893 374 0.39 48 4.35 5.7433
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 95,519 -143 -0.15 46 -8.00 6.0075
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 95,662 95,662 51 7.3504
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -102,159 -100.00 0 -100.00
2021-12-02 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 102,159 -820 -0.80 27,883 -2.58 4.7792
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 102,979 -506 -0.49 28,620 8.26 4.6920
2021-05-04 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 103,485 -1,872 -1.78 26,437 8.22 4.9063
2021-02-02 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 105,357 -498 -0.47 24,429 8.38 4.8222
2020-10-29 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 105,855 -1,492 -1.39 22,541 17.63 5.0211
2020-08-06 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 107,347 12,903 13.66 19,163 10.98 4.5369
2020-04-06 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 94,444 -1,868 -1.94 17,267 -20.85 4.8712
2020-01-07 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 96,312 33,344 52.95 21,815 66.54 4.1868
2019-10-11 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 62,968 -4,640 -6.86 13,099 -9.11 2.6918
2019-07-24 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 67,608 -1,263 -1.83 14,412 4.17 2.9826
2019-04-29 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 68,871 -235 -0.34 13,835 -1.95 2.7514
2019-02-07 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 69,106 -461 -0.66 14,110 -5.27 3.1351
2018-10-30 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 69,567 -1,131 -1.60 14,895 12.88 2.8693
2018-08-13 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 70,698 3,311 4.91 13,196 -1.83 2.6903
2018-05-08 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 67,387 -100 -0.15 13,442 0.49 3.0558
2018-03-27 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 67,487 67,487 13,377 2.9176
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.