Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionZacks Investment Management
Latest Disclosed Ownership25,433 shares
Latest Disclosed Value $ 12,187,548
Zacks Investment Management reports 0.88% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 14, 2026 - Zacks Investment Management filed a 13F-HR form disclosing ownership of 25,433 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $12,187,548 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 25,660 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.88% 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 25,433 -227 -0.88 12,188 -5.51 0.0977
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,660 768 3.09 12,898 3.06 0.1013
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,892 -1,165 -4.47 12,515 -1.13 0.0997
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,057 -48 -0.18 12,658 -8.96 0.1083
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,105 775 3.06 13,903 21.09 0.1298
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,330 3,591 16.52 11,482 14.75 0.1063
2024-11-14 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,739 21,739 10,006 0.0868
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -21,408 -100.00 0 -100.00
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,408 2,597 13.81 9,002 34.18 0.0960
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,811 78 0.42 6,709 2.24 0.0826
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,733 -4 -0.02 6,562 2.71 0.0850
2023-08-15 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,737 377 2.05 6,389 12.72 0.0802
2023-08-15 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,539 5,981
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,360 21 0.11 5,669 0.07 0.0760
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,339 2,749 17.63 5,665 36.06 0.0791
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,590 1,053 7.24 4,163 4.89 0.0665
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,537 -1,051 -6.74 3,969 -27.85 0.0606
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,588 2,429 18.46 5,501 39.80 0.0763
2022-02-15 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,159 -1,839 -12.26 3,935 -3.88 0.0553
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,998 854 6.04 4,094 4.15 0.0646
2021-08-16 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,144 -547 -3.72 3,931 4.74 0.0636
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,691 316 2.20 3,753 12.60 0.0668
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,375 -281 -1.92 3,333 6.79 0.0615
2020-11-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,656 830 6.00 3,121 26.46 0.0632
2020-08-14 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,826 2,049 17.40 2,468 14.63 0.0543
2020-05-15 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,777 -75 -0.63 2,153 -19.78 0.0528
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,852 -1,816 -13.29 2,684 -5.59 0.0503
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,668 1,039 8.23 2,843 5.61 0.0570
2019-08-14 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,629 -2,221 -14.96 2,692 -9.76 0.0552
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,850 180 1.23 2,983 -0.40 0.0640
2019-02-14 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,670 907 6.59 2,995 1.63 0.0722
2018-11-14 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,763 824 6.37 2,947 22.03 0.0615
2018-08-14 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,939 183 1.43 2,415 -5.11 0.0526
2018-05-14 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,756 -31 -0.24 2,545 0.39 0.0565
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,787 -100 -0.78 2,535 7.32 0.0553
2017-11-14 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,887 390 3.12 2,362 11.57 0.0553
2017-08-14 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,497 -104 -0.83 2,117 0.81 0.0524
2017-05-15 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 12,601 -485 -3.71 2,100 -1.55 0.0534
2017-02-13 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 13,086 -4,935 -27.38 2,133 -18.06 0.0612
2016-11-14 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,021 -2,144 -10.63 2,603 -10.86 0.0736
2016-08-15 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,165 1,049 5.49 2,920 7.67 0.0890
2016-05-12 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,116 230 1.22 2,712 8.74 0.0860
2016-02-16 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,886 -97 -0.51 2,494 0.77 0.0815
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,983 -1,310 -6.46 2,475 -10.39 0.0862
2015-08-12 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,293 3,858 23.47 2,762 16.44 0.0876
2015-05-12 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,435 -391 -2.32 2,372 -6.10 0.0750
2015-02-13 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,826 -270 -1.58 2,526 6.94 0.0819
2014-11-13 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,096 -4,584 -21.14 2,362 -13.92 0.0823
2014-08-12 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,680 2,711 14.29 2,744 15.73 0.0975
2014-05-13 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,969 1,678 9.70 2,371 15.66 0.0878
2014-02-13 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,291 11,679 208.11 2,050 221.82 0.0808
2013-11-14 2013-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,612 -630 -10.09 637 -8.87 0.0275
2013-11-13 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,612 637
2013-08-13 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,242 6,242 699 0.0321
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.