Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionGarrison Point Advisors, Llc
Latest Disclosed Ownership4,247 shares
Latest Disclosed Value $ 2,035,162
Garrison Point Advisors, Llc ownership in BRKB / Berkshire Hathaway Inc.

On May 12, 2026 - Garrison Point Advisors, Llc filed a 13F-HR form disclosing ownership of 4,247 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,035,162 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,247 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.00% 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)
2026-05-12 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,247 0 0.00 2,035 -4.64 0.9285
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,247 -760 -15.18 2,135 -15.22 0.9451
2025-10-22 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,007 20 0.40 2,517 3.92 1.0558
2025-08-06 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,987 -50 -0.99 2,423 -9.69 1.1120
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,037 -105 -2.04 2,683 15.11 1.3011
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,142 2,932 132.67 2,331 129.11 1.1057
2024-10-23 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,210 0 0.00 1,017 13.13 0.6296
2024-08-07 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,210 -86 -3.75 899 -6.84 0.5934
2024-05-09 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,296 -160 -6.51 966 10.29 0.6208
2024-02-08 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,456 -50 -2.00 876 -0.23 0.6177
2023-10-18 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,506 -15 -0.60 878 2.10 0.6793
2023-07-25 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,521 -565 -18.31 860 -9.77 0.6193
2023-05-05 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,086 0 0.00 953 -0.10 0.7147
2023-02-01 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,086 -4 -0.13 953 15.52 0.7797
2022-10-20 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,090 0 0.00 825 -2.25 0.7363
2022-08-10 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,090 0 0.00 844 -22.57 0.7005
2022-05-06 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,090 0 0.00 1,090 17.97 0.7627
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,090 0 0.00 924 9.61 0.6131
2021-11-04 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,090 -250 -7.49 843 -9.16 0.6127
2021-08-02 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,340 0 0.00 928 8.79 0.6688
2021-05-04 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,340 0 0.00 853 10.21 0.6624
2021-01-28 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,340 60 1.83 774 10.89 0.6228
2020-10-27 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,280 275 9.15 698 30.22 0.6333
2020-08-03 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,005 3,005 536 0.5306
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.