Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionActivest Wealth Management
Latest Disclosed Ownership8,124 shares
Latest Disclosed Value $ 3,893,165
Activest Wealth Management reports 78.47% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 15, 2026 - Activest Wealth Management filed a 13F-HR form disclosing ownership of 8,124 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $3,893,165 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 4,552 shares of Berkshire Hathaway Inc.. This represents a change in shares of 78.47% 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)
2026-04-15 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,124 3,572 78.47 3,893 70.22 0.6840
2026-01-30 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,552 377 9.03 2,288 9.01 0.4274
2025-11-03 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,175 244 6.21 2,099 9.90 0.4250
2025-07-29 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,931 -180 -4.38 1,909 -12.79 0.4604
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,111 1,327 47.67 2,189 73.59 0.5873
2025-01-28 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,784 255 10.08 1,262 8.33 0.3528
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,529 199 8.54 1,164 22.91 0.3595
2024-07-30 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,330 -944 -28.83 948 -31.18 0.3119
2024-04-24 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,274 3,274 1,377 0.6631
2024-01-19 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -2,063 -100.00 0 -100.00
2023-10-10 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,063 2,063 723 0.4449
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -2,364 -100.00 0 -100.00
2023-04-18 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,364 2,364 727 0.4662
2022-10-13 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -2,394 -100.00 0 -100.00
2022-10-13 2022-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,394 40 1.70 654 -21.30 0.4618
2022-07-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,042 688 831 0.5488
2022-04-26 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,354 0 0.00 831 18.04 0.5345
2022-01-13 2021-12-31 13F BERKSHIRE HATHAWAY INC-CL B CL B NEW 084670702 2,354 -648 -21.59 704 -14.04 0.4352
2021-10-12 2021-09-30 13F BERKSHIRE HATHAWAY INC-CL B CL B NEW 084670702 3,002 648 27.53 819 25.23 0.5453
2021-09-20 2021-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,354 -613 -20.66 654 -13.83 0.4914
2021-09-20 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,354 2,354 654 0.4914
2021-09-20 2021-03-31 13F BERKSHIRE HATHAWAY INC-CL B CL B NEW 084670702 2,967 2,967 759 0.6204
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.