Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionFortis Capital Management LLC
Latest Disclosed Ownership3,911 shares
Latest Disclosed Value $ 1,874,356
Fortis Capital Management LLC reports 75.23% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 11, 2026 - Fortis Capital Management LLC filed a 13F-HR form disclosing ownership of 3,911 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,874,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 15,789 shares of Berkshire Hathaway Inc.. This represents a change in shares of -75.23% 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)
2026-05-11 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,911 -11,878 -75.23 1,874 -76.39 0.1919
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,789 855 5.73 7,936 5.70 1.0497
2025-11-10 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,934 1,844 14.09 7,508 18.09 1.0552
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,090 1,174 9.85 6,359 0.19 0.9898
2025-05-09 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,916 397 3.45 6,346 21.55 1.2342
2025-02-11 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,519 5,365 87.18 5,221 84.36 0.9653
2024-11-06 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,154 281 4.78 2,832 18.54 0.5705
2024-07-23 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,873 967 19.71 2,389 15.80 0.5095
2024-04-30 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,906 236 5.05 2,063 23.90 0.5411
2024-02-12 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,670 717 18.14 1,666 20.30 0.4260
2023-11-03 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,953 325 8.96 1,385 11.88 0.4311
2023-08-04 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,628 36 1.00 1,237 11.54 0.4369
2023-05-11 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,592 100 2.86 1,109 2.88 0.4487
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,492 88 2.59 1,079 18.59 0.7983
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,404 -5 -0.15 909 -2.36 0.7759
2022-08-10 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,409 -104 -2.96 931 -24.92 0.9149
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,513 163 4.87 1,240 23.75 0.6331
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,350 124 3.84 1,002 13.73 0.5192
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,226 583 22.06 881 19.86 0.4694
2021-08-16 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,643 699 35.96 735 47.89 0.3737
2021-04-21 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,944 549 39.35 497 53.87 0.2866
2021-02-08 2020-12-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 1,395 253 22.15 323 32.92 0.2463
2020-11-12 2020-09-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 1,142 -61 -5.07 243 13.02 0.1929
2020-08-13 2020-06-30 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 1,203 88 7.89 215 5.39 0.2426
2020-05-14 2020-03-31 13F Berkshire Hathaway Inc. Class B CL B NEW 084670702 1,115 -9,397 -89.39 204 -91.43 0.6055
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 10,512 10,512 2,381 2.1007
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.