Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBigSur Wealth Management LLC
Latest Disclosed Ownership11,684 shares
Latest Disclosed Value $ 5,598,973
BigSur Wealth Management LLC reports 18.20% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 22, 2026 - BigSur Wealth Management LLC filed a 13F-HR form disclosing ownership of 11,684 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $5,598,973 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 14,284 shares of Berkshire Hathaway Inc.. This represents a change in shares of -18.20% 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)
2026-04-22 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,684 -2,600 -18.20 5,599 -22.02 1.5706
2026-01-27 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,284 1,290 9.93 7,180 9.91 1.7416
2025-10-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,994 -1,605 -10.99 6,533 -7.88 1.6000
2025-07-15 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,599 2,705 22.74 7,092 11.95 1.7903
2025-04-16 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,894 454 3.97 6,335 22.16 1.7159
2025-01-16 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,440 -1,450 -11.25 5,186 -12.59 1.4818
2024-10-16 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,890 1,905 17.34 5,933 32.77 1.6343
2024-07-22 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,985 0 0.00 4,469 -3.27 1.3682
2024-05-22 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,985 2,970 37.06 4,619 61.62 1.4475
2024-02-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,015 300 3.89 2,859 5.77 1.3607
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,715 -420 -5.16 2,703 -2.60 1.3623
2023-08-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,135 -2,900 -26.28 2,774 -18.58 1.3257
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,035 -900 -7.54 3,407 -7.57 1.5987
2023-02-09 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,935 -500 -4.02 3,687 11.02 1.7764
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,435 1,575 14.50 3,320 11.97 1.6791
2022-08-10 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,860 -300 -2.69 2,965 -24.71 1.3967
2022-05-05 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,160 2,800 33.49 3,938 57.52 1.5343
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,360 2,000 31.45 2,500 44.01 0.9780
2021-11-01 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,360 -700 -9.92 1,736 -11.52 0.7797
2021-07-29 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,060 -115 -1.60 1,962 7.04 0.8854
2021-05-06 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,175 1,200 20.08 1,833 32.35 0.9407
2021-01-22 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,975 0 0.00 1,385 8.88 0.7821
2020-10-30 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,975 -751 -11.17 1,272 5.91 0.8102
2020-07-31 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,726 0 0.00 1,201 -2.36 0.8587
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,726 4,700 231.98 1,230 167.97 0.9220
2020-01-30 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,026 0 0.00 459 9.03 0.2594
2019-11-05 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,026 0 0.00 421 -3.22 0.2837
2019-07-05 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,026 230 12.81 435 20.50 0.3035
2019-04-05 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,796 533 42.20 361 52.97 0.2368
2018-08-01 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,263 0 0.00 236 -6.35 0.1719
2018-05-02 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,263 125 10.98 252 24.14 0.1797
2017-08-14 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,138 -205 -15.26 203 -7.31 0.2059
2017-02-09 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,343 1,343 219 0.2930
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.