Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionMagnus Financial Group LLC
Latest Disclosed Ownership12,904 shares
Latest Disclosed Value $ 6,183,597
Magnus Financial Group LLC reports 8.08% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 10, 2026 - Magnus Financial Group LLC filed a 13F-HR form disclosing ownership of 12,904 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $6,183,597 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 14,039 shares of Berkshire Hathaway Inc.. This represents a change in shares of -8.08% 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)
2026-04-10 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,904 -1,135 -8.08 6,184 -12.37 0.5019
2026-01-07 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,039 812 6.14 7,057 6.12 0.5388
2025-10-28 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,227 -23 -0.17 6,650 3.31 0.5248
2025-07-16 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,250 516 4.05 6,436 -5.09 0.5647
2025-04-11 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,734 222 1.77 6,782 19.57 0.6565
2025-01-17 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,512 -32 -0.26 5,671 -1.77 0.5472
2024-10-15 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,544 -458 -3.52 5,774 9.15 0.5869
2024-08-02 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,002 510 4.08 5,289 0.70 0.5941
2024-05-03 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,492 182 1.48 5,253 19.64 0.6232
2024-02-05 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,310 112 0.92 4,390 2.76 0.5751
2023-10-10 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,198 567 4.87 4,273 7.72 0.6225
2023-07-19 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,631 102 0.88 3,966 11.44 0.5646
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,529 197 1.74 3,560 1.69 0.5420
2023-02-02 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,332 263 2.38 3,500 18.40 0.5698
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,069 200 1.84 2,956 -0.37 0.5646
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,869 600 5.84 2,967 -18.13 0.5454
2022-05-12 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,269 5,612 120.51 3,624 160.34 0.6054
2022-02-10 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,657 -9 -0.19 1,392 9.26 0.2645
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,666 -425 -8.35 1,274 -9.96 0.2696
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,091 -11 -0.22 1,415 8.60 0.3083
2021-05-05 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,102 -5,882 -53.55 1,303 -48.84 0.3148
2021-02-05 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,984 1,495 15.76 2,547 26.03 0.2529
2020-11-05 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,489 -508 -5.08 2,021 13.22 0.2352
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,997 -16 -0.16 1,785 -2.51 0.1979
2020-05-11 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 10,013 -3,513 -25.97 1,831 -40.24 0.2496
2020-01-28 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,526 540 4.16 3,064 13.44 0.4385
2019-11-08 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,986 -63 -0.48 2,701 -2.91 0.5067
2019-08-05 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,049 -123 -0.93 2,782 5.14 0.5359
2019-05-09 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,172 -70 -0.53 2,646 -2.14 0.5385
2019-02-13 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,242 13,242 2,704 0.7185
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.