Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionLifeworks Advisors, LLC
Latest Disclosed Ownership1,693 shares
Latest Disclosed Value $ 811,286
Lifeworks Advisors, LLC reports 2.36% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 4, 2026 - Lifeworks Advisors, LLC filed a 13F-HR form disclosing ownership of 1,693 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $811,286 USD as of March 31, 2026.

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 1,693 39 2.36 811 -2.41 0.1041
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,654 -153 -8.47 831 -8.48 0.1077
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,807 -39 -2.11 908 1.34 0.1209
2025-08-05 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,846 57 3.19 897 -5.88 0.1337
2025-05-06 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,789 90 5.30 953 23.64 0.1583
2025-02-07 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,699 -66 -3.74 770 -5.17 0.1390
2024-11-06 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,765 178 11.22 812 25.89 0.1597
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,587 35 2.26 646 -1.07 0.1798
2024-05-10 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,552 511 49.09 653 75.74 0.1827
2024-02-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,041 -62 -5.62 371 -3.89 0.1281
2023-11-01 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,103 215 24.21 386 27.81 0.1503
2023-08-02 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 888 100 12.69 303 24.28 0.1289
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 788 788 243 0.1149
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -744 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 744 -919 -55.26 220 -51.54 0.1252
2022-08-12 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,663 710 74.50 454 35.12 0.2878
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 953 94 10.94 336 30.74 0.2219
2022-02-15 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 859 859 257 0.2047
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.