Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionHikari Power Ltd
Latest Disclosed Ownership7,670 shares
Latest Disclosed Value $ 3,675
Hikari Power Ltd ownership in BRKB / Berkshire Hathaway Inc.

On April 30, 2026 - Hikari Power Ltd filed a 13F-HR form disclosing ownership of 7,670 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $3,675 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 783 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-30 2026-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 0.00 0.3202
2026-02-04 2025-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 0.00 0.3038
2025-10-22 2025-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 0.00 0.3104
2025-08-01 2025-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 -25.00 0.3101
2025-04-24 2025-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 33.33 0.3238
2025-02-04 2024-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 0.00 0.3003
2024-10-25 2024-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 4 0.00 0.2932
2024-07-23 2024-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 0.00 0.2816
2024-05-08 2024-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 50.00 0.2772
2024-01-31 2023-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 0.00 0.2606
2023-10-26 2023-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 0.00 0.2626
2023-07-26 2023-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 3 0.00 0.2514
2023-04-26 2023-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 2 0.00 0.2380
2023-01-25 2022-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 2 -99.90 0.2325
2022-11-01 2022-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 0 0.00 2,048 -2.20 0.2291
2022-07-22 2022-06-30 13F/A-1 BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,670 280 3.79 2,094 -19.71 0.2244
2022-07-06 2022-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 2,018 0.2162
2022-04-13 2022-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 2,608 18.01 0.2343
2022-01-12 2021-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 2,210 9.57 0.2065
2021-10-13 2021-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 2,017 -1.80 0.2024
2021-07-07 2021-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 2,054 8.79 0.2027
2021-04-28 2021-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 1,888 10.15 0.1988
2021-01-22 2020-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 1,714 8.89 0.1915
2020-10-08 2020-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 0 0.00 1,574 19.33 0.2000
2020-08-13 2020-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 7,390 2,030 37.87 1,319 34.59 0.1808
2020-04-23 2020-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 5,360 2,660 98.52 980 60.13 0.1385
2020-02-04 2019-12-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 2,700 0 0.00 612 8.90 0.0635
2019-10-31 2019-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 2,700 0 0.00 562 -2.43 0.0606
2019-08-08 2019-06-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 2,700 300 12.50 576 19.50 0.0620
2019-04-26 2019-03-31 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 2,400 450 23.08 482 21.11 0.0505
2019-01-29 2018-12-31 13F BERKSHIRE HATHAWAY INC CLASS B COM 084670702 1,950 950 95.00 398 85.98 0.0448
2018-10-30 2018-09-30 13F BERKSHIRE HATHAWAY INC CLASS B CL B 084670702 1,000 1,000 214 0.0218
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.