Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionDavid R. Rahn & Associates Inc.
Latest Disclosed Ownership4,649 shares
Latest Disclosed Value $ 2,227,594
David R. Rahn & Associates Inc. reports 17.54% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 14, 2026 - David R. Rahn & Associates Inc. filed a 13F-HR form disclosing ownership of 4,649 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,227,594 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 5,638 shares of Berkshire Hathaway Inc.. This represents a change in shares of -17.54% 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)
2026-05-14 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,649 -989 -17.54 2,228 -21.39 0.6287
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,638 -13,198 -70.07 2,834 -70.08 0.6779
2025-10-22 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,836 9,715 106.51 9,469 113.75 2.3208
2025-08-07 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,121 -3,320 -26.69 4,430 -33.13 1.1902
2025-05-07 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,441 923 8.01 6,626 26.92 1.9246
2025-02-04 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,518 -2,799 -19.55 5,221 -20.78 1.6850
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,317 7,021 96.23 6,589 122.08 1.9957
2024-07-24 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,296 -24 -0.33 2,968 -3.61 0.9410
2024-04-17 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,320 -646 -8.11 3,078 8.34 1.2612
2024-01-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,966 289 3.76 2,841 5.65 1.1928
2023-12-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,677 367 5.02 2,689 7.91 1.3722
2023-07-27 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,310 306 4.37 2,493 15.26 1.1668
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,004 -50 -0.71 2,163 -0.73 1.1092
2023-01-30 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,054 -151 -2.10 2,179 13.20 1.0972
2022-10-19 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,205 -100 -1.37 1,924 -3.51 0.9213
2022-07-26 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,305 0 0.00 1,994 -15.44 0.8160
2022-05-10 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,305 5,290 262.53 2,358 291.69 0.9051
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,015 774 62.37 602 77.58 0.2653
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,241 1,241 339 0.1902
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.