Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBarrett & Company, Inc.
Latest Disclosed Ownership1,116 shares
Latest Disclosed Value $ 534,548
Barrett & Company, Inc. reports 0.45% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 4, 2026 - Barrett & Company, Inc. filed a 13F-HR form disclosing ownership of 1,116 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $534,548 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 1,111 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.45% 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)
2026-05-04 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,116 5 0.45 535 -4.30 0.1839
2026-01-28 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,111 0 0.00 558 0.00 0.1861
2025-10-31 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,111 -40 -3.48 558 0.00 0.1914
2025-07-21 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,151 240 26.34 559 15.29 0.2096
2025-04-21 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 911 -100 -9.89 485 5.68 0.2087
2025-01-28 2024-12-31 13F BERKSHIRE HATHAWAY INC COM USD0.0033 CLASS B CL B NEW 084670702 1,011 323 46.95 458 44.94 0.1933
2024-10-24 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 688 -20 -2.82 316 10.10 0.1371
2024-07-25 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 708 0 0.00 288 -3.37 0.1303
2024-04-17 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 708 -50 -6.60 298 10.00 0.1408
2024-01-24 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 758 -18 -2.32 270 -0.37 0.1463
2023-10-23 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 776 -31 -3.84 272 -1.45 0.1600
2023-07-27 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 807 20 2.54 275 13.17 0.1597
2023-05-11 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 787 -1 -0.13 243 -67.29 0.1540
2023-05-23 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 788 0 0.00 743 0.00 0.4909
2023-06-13 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 788 788 743 0.4909
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.