Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBreakwater Capital Group
Latest Disclosed Ownership7,632 shares
Latest Disclosed Value $ 3,657,254
Breakwater Capital Group reports 0.08% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 20, 2026 - Breakwater Capital Group filed a 13F-HR form disclosing ownership of 7,632 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $3,657,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 7,626 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.08% 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)
2026-04-20 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,632 6 0.08 3,657 -4.59 0.4897
2026-01-09 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,626 -11 -0.14 3,833 -0.16 0.5349
2025-11-06 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,637 1,104 16.90 3,839 20.99 0.5669
2025-07-09 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,533 -24 -0.37 3,174 -9.14 0.5172
2025-04-10 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,557 142 2.21 3,492 20.12 0.6222
2025-01-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,415 43 0.67 2,908 -0.85 0.5789
2024-10-04 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,372 87 1.38 2,933 14.71 0.5909
2024-07-26 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,285 138 2.24 2,557 -1.08 0.5802
2024-04-18 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,147 182 3.05 2,585 17.72 0.6500
2024-01-24 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,965 131 2.25 2,195 9.48 0.6208
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,834 429 7.94 2,005 8.79 0.6907
2023-07-24 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,405 313 6.15 1,843 17.24 0.6734
2023-04-27 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,092 207 4.24 1,572 4.24 0.6597
2023-02-02 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,885 4,885 1,509 0.7896
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.