Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionAuxano Advisors, LLC
Latest Disclosed Ownership7,295 shares
Latest Disclosed Value $ 3,495,764
Auxano Advisors, LLC reports 0.75% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 2, 2026 - Auxano Advisors, LLC filed a 13F-HR form disclosing ownership of 7,295 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $3,495,764 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 2 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.75% 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)
2026-05-02 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,295 -55 -0.75 3,496 -5.39 0.6974
2026-02-06 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,350 403 5.80 3,694 5.78 0.7296
2025-11-05 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,947 985 16.52 3,493 20.58 0.7426
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,962 -223 -3.61 2,896 -12.08 0.6762
2025-05-05 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,185 -45 -0.72 3,294 16.68 0.8729
2025-02-06 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,230 455 7.88 2,824 6.21 0.7117
2024-11-07 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,775 171 3.05 2,658 16.63 0.6880
2024-08-01 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,604 70 1.26 2,280 -2.06 0.6303
2024-05-03 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,534 518 10.33 2,327 30.07 0.6777
2024-02-05 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,016 -84 -1.65 1,789 0.17 0.6010
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,100 -104 -2.00 1,787 11.21 0.7303
2023-07-11 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,204 0 0.00 1,607 0.00 0.6427
2023-04-28 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,204 292 5.94 1,607 5.87 0.6426
2023-02-06 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,912 39 0.80 1,517 16.60 0.6862
2022-11-02 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,873 1,587 48.30 1,301 45.04 0.5982
2022-08-05 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,286 906 38.07 897 6.79 0.4438
2022-05-06 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,380 -550 -18.77 840 -4.11 0.3576
2022-02-04 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,930 292 11.07 876 21.67 0.3918
2021-11-03 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,638 0 0.00 720 -1.77 0.3235
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,638 57 2.21 733 11.23 0.3350
2021-04-29 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,581 398 18.23 659 30.24 0.4050
2021-02-11 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,183 502 29.86 506 41.34 0.3348
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,681 1,681 358 0.2768
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.