Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionSunesis Advisors, LLC
Latest Disclosed Ownership1,851 shares
Latest Disclosed Value $ 886,999
Sunesis Advisors, LLC reports 20.39% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 14, 2026 - Sunesis Advisors, LLC filed a 13F-HR form disclosing ownership of 1,851 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $886,999 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,325 shares of Berkshire Hathaway Inc.. This represents a change in shares of -20.39% 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)
2026-05-14 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,851 -474 -20.39 887 -24.14 0.4009
2026-02-02 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,325 -79 -3.29 1,169 -3.31 0.5292
2025-11-06 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,404 -20 -0.83 1,209 -6.36 0.5646
2025-04-23 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,424 0 0.00 1,291 17.49 0.7003
2025-01-24 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,424 0 0.00 1,099 -1.52 0.6679
2024-10-29 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,424 -366 -13.12 1,116 -1.68 0.6728
2024-07-16 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,790 -84 -2.92 1,135 -6.13 0.6745
2024-04-29 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,874 15 0.52 1,209 18.55 0.7073
2024-01-19 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,859 0 0.00 1,020 1.80 0.6214
2023-10-20 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,859 -150 -4.99 1,002 7.75 0.7102
2023-04-27 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,009 -11 -0.36 929 -0.32 0.6685
2023-02-02 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,020 -25 -0.82 933 14.64 0.5969
2022-11-02 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,045 0 0.00 813 -2.17 0.5595
2022-07-27 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,045 -313 -9.32 831 -29.87 0.5400
2022-05-05 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,358 -97 -2.81 1,185 14.71 0.6862
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,455 0 0.00 1,033 9.54 0.7573
2021-10-27 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,455 0 0.00 943 -1.77 0.7282
2021-07-28 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,455 -27 -0.78 960 7.87 0.7348
2021-04-26 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,482 0 0.00 890 10.29 0.7112
2021-01-29 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,482 0 0.00 807 8.91 0.6528
2020-11-09 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,482 0 0.00 741 19.13 0.6591
2020-07-22 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,482 0 0.00 622 -2.35 0.5725
2020-04-27 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,482 25 0.72 637 -18.65 0.6407
2020-01-27 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,457 0 0.00 783 8.90 0.7127
2019-10-28 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,457 0 0.00 719 -2.44 0.7462
2019-08-05 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,457 0 0.00 737 6.20 0.7897
2019-04-29 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,457 -123 -3.44 694 -5.06 0.6994
2019-01-25 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,580 0 0.00 731 -4.69 0.7975
2018-10-29 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,580 0 0.00 767 14.82 0.7739
2018-08-06 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,580 3,580 668 0.8195
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.