Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionHeron Bay Capital Management
Latest Disclosed Ownership35,652 shares
Latest Disclosed Value $ 17,084,438
Heron Bay Capital Management reports 155.11% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Heron Bay Capital Management filed a 13F-HR form disclosing ownership of 35,652 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $17,084,438 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,975 shares of Berkshire Hathaway Inc.. This represents a change in shares of 155.11% 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 35,652 21,677 155.11 17,084 143.22 1.5750
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,975 -1,389 -9.04 7,025 -9.06 1.3398
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,364 -105 -0.68 7,724 2.79 1.4416
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,469 -3,114 -16.76 7,514 -24.07 1.4785
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,583 -555 -2.90 9,897 14.09 2.0803
2025-02-11 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,138 14 0.07 8,675 -1.45 1.8124
2024-11-08 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,124 -1,408 -6.86 8,802 5.39 1.8514
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,532 -4,070 -16.54 8,352 -19.27 1.7789
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,602 -175 -0.71 10,346 17.08 2.1951
2024-01-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,777 -1,703 -6.43 8,837 -4.73 2.0456
2023-11-01 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,480 -203 -0.76 9,276 1.95 2.4971
2023-07-12 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,683 5,941 28.64 9,099 42.07 2.5228
2023-05-11 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,742 4,553 28.12 6,405 28.08 2.4884
2023-01-25 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,189 188 1.17 5,001 17.01 3.0955
2022-10-19 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,001 8,865 124.23 4,273 119.35 2.9126
2022-07-27 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,136 -1,305 -15.46 1,948 -34.61 1.1818
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,441 97 1.16 2,979 19.40 1.4618
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,344 -25 -0.30 2,495 9.24 1.2305
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,369 0 0.00 2,284 -1.81 1.1791
2021-08-10 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,369 -156 -1.83 2,326 6.80 1.2864
2021-05-14 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,525 50 0.59 2,178 10.84 1.2951
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,475 8,475 1,965 1.2797
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.