Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBlackhawk Capital Partners LLC.
Latest Disclosed Ownership1,128 shares
Latest Disclosed Value $ 540,538
Blackhawk Capital Partners LLC. reports 5.13% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 5, 2026 - Blackhawk Capital Partners LLC. filed a 13F-HR form disclosing ownership of 1,128 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $540,538 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 1,189 shares of Berkshire Hathaway Inc.. This represents a change in shares of -5.13% 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)
2026-05-05 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,128 -61 -5.13 541 -9.55 0.1983
2026-02-04 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,189 0 0.00 598 0.00 0.2245
2025-10-31 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,189 -27 -2.22 598 1.19 0.2326
2025-08-07 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,216 -17 -1.38 591 -10.06 0.2724
2025-04-30 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,233 -26 -2.07 657 15.09 0.3383
2025-02-04 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,259 -214 -14.53 571 -15.81 0.2956
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,473 -33 -2.19 678 10.62 0.3621
2024-07-29 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,506 -129 -7.89 613 -10.92 0.3698
2024-05-01 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,635 -183 -10.07 688 6.02 0.4289
2024-01-19 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,818 -28 -1.52 648 0.31 0.4395
2023-11-07 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,846 -213 -10.34 647 -7.98 0.4728
2023-07-18 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,059 -4,691 -69.50 702 -66.31 0.4879
2023-05-09 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,750 -1,774 -20.81 2,084 -20.85 1.5244
2023-02-10 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,524 -918 -9.72 2,633 4.44 2.0590
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,442 3,454 57.68 2,521 54.19 2.0804
2022-08-08 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,988 5,988 1,635 1.2760
2021-05-11 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -1,131 -100.00 0 -100.00
2021-02-10 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,131 -436 -27.82 241 -13.93 0.2061
2020-11-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,567 -23 -1.45 280 -3.78 0.2536
2020-08-04 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,590 348 28.02 291 3.56 0.3468
2020-04-03 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,242 -66 -5.05 281 3.31 0.2507
2020-02-07 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,308 0 0.00 272 0.00 0.2706
2019-11-08 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,308 0 0.00 272 -2.51 0.2544
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,308 4 0.31 279 6.49 0.2665
2019-05-08 2019-03-31 13F BERKSHIRE HATHAWAY CLASS B CL B NEW 084670702 1,304 1,304 262 0.2709
2019-02-04 2018-12-31 13F BANCO SANTANDER CHILE F SPONSORED ADR 1 ADR REPS 400 ORD SHS CL B 084670702 0 -10,413 -100.00 0 -100.00
2018-11-13 2018-09-30 13F BANCO SANTANDER CHILE F SPONSORED ADR 1 ADR REPS 400 ORD SHS CL B 084670702 10,413 9,994 2,385.20 333 326.92 0.4705
2018-08-09 2018-06-30 13F BERKSHIRE HATHAWAY CLASS B CL B 084670702 419 -196 -31.87 78 -36.59 0.0886
2018-05-15 2018-03-31 13F BERKSHIRE HATHAWAY CLASS B CL B 084670702 615 165 36.67 123 38.20 0.1044
2018-02-12 2017-12-31 13F BERKSHIRE HATHAWAY CLASS B CL B 084670702 450 450 89 0.0769
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.