Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionFishman Jay A Ltd/mi
Latest Disclosed Ownership5,115 shares
Latest Disclosed Value $ 2,451,108
Fishman Jay A Ltd/mi reports 1.82% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 29, 2026 - Fishman Jay A Ltd/mi filed a 13F-HR form disclosing ownership of 5,115 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,451,108 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 5,210 shares of Berkshire Hathaway Inc.. This represents a change in shares of -1.82% 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)
2026-04-29 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,115 -95 -1.82 2,451 -6.38 0.2188
2026-01-28 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,210 -60 -1.14 2,619 -1.17 0.2154
2025-11-05 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,270 15 0.29 2,649 3.80 0.2271
2025-07-22 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,255 10 0.19 2,553 -8.63 0.2444
2025-04-22 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,245 -120 -2.24 2,793 14.89 0.3051
2025-01-29 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,365 65 1.23 2,432 -0.33 0.2280
2024-10-30 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,300 10 0.19 2,439 13.39 0.2423
2024-08-05 2024-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B com 084670702 5,290 295 5.91 2,152 2.43 0.2268
2024-07-31 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 118,325 113,330 2,152 0.2268
2024-04-23 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 4,995 35 0.71 2,100 18.71 0.2321
2024-01-24 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B com 084670702 4,960 -800 -13.89 1,769 -12.30 0.2025
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,760 50 0.88 2,018 3.60 0.2555
2023-08-15 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC. CL B com 084670702 5,710 32 0.56 1,947 11.07 0.2359
2023-08-15 2023-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,710 1,947
2023-05-09 2023-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,678 32 0.57 1,753 0.52 0.2239
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 0 0.00 1,744 15.73 0.2453
2022-10-26 2022-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 0 0.00 1,508 -2.21 0.2180
2022-08-09 2022-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 0 0.00 1,541 -22.64 0.2100
2022-05-10 2022-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 0 0.00 1,993 18.01 0.2195
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 0 0.00 1,688 9.54 0.1803
2021-11-08 2021-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,646 -20 -0.35 1,541 -2.10 0.1908
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,666 0 0.00 1,575 8.78 0.1925
2021-05-03 2021-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,666 -100 -1.73 1,447 8.31 0.1952
2021-02-10 2020-12-31 13F BERKSHIRE HATHAWAY INC. CL B csus 084670702 5,766 0 0.00 1,337 8.88 0.1839
2020-11-10 2020-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,766 0 0.00 1,228 19.24 0.1943
2020-08-10 2020-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,766 0 0.00 1,029 -2.37 0.1796
2020-05-13 2020-03-31 13F/A-82 BERKSHIRE HATHAWAY INC. CL B com 084670702 5,766 519 9.89 1,054 -11.28 0.2184
2020-05-12 2020-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,947 2,700 1,596 298,086.4477
2020-02-04 2019-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,247 -10 -0.19 1,188 8.69 0.2047
2019-11-05 2019-09-30 13F/A-1 BERKSHIRE HATHAWAY INC. CL B com 084670702 5,257 -1,615 -23.50 1,094 -25.34 0.2049
2019-11-05 2019-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 5,257 -1,615,000 1,094
2019-08-06 2019-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 6,872 -1,075 -13.53 1,465 -8.27 0.2741
2019-05-01 2019-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,947 226 2.93 1,596 1.27 0.2981
2019-03-19 2018-12-31 13F/A-1 BERKSHIRE HATHAWAY INC. CL B com 084670702 7,721 290 3.90 1,576 -0.94 0.3415
2019-02-05 2018-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,721 290 1,576
2018-10-31 2018-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,431 25 0.34 1,591 15.12 0.2794
2018-08-06 2018-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,406 -25 -0.34 1,382 -6.75 0.2585
2018-05-08 2018-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 7,431 -3,975 -34.85 1,482 -34.42 0.2802
2018-05-08 2017-12-31 13F/A-1 BERKSHIRE HATHAWAY INC. CL B com 084670702 11,406 0 0.00 2,261 8.13 0.4262
2018-02-05 2017-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 11,406 0 2,261
2017-10-31 2017-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 11,406 -25 -0.22 2,091 7.95 0.4263
2017-08-03 2017-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 11,431 1,641 16.76 1,936 18.70 0.4099
2017-05-10 2017-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 9,790 1,759 21.90 1,632 24.69 0.3680
2017-02-06 2016-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 8,031 4,900 156.50 1,309 189.38 0.3230
2016-11-03 2016-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 3,131 -175 -5.29 452 -5.44 0.1115
2016-08-09 2016-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 3,306 0 0.00 479 1.92 0.1213
2016-05-10 2016-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 3,306 450 15.76 469 24.40 0.1220
2016-02-08 2015-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 2,856 156 5.78 377 7.10 0.0918
2015-11-02 2015-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 2,700 0 0.00 352 -4.09 0.0844
2015-08-05 2015-06-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 2,700 -150 -5.26 367 -10.71 0.0764
2015-04-29 2015-03-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 2,850 2,850 0.00 411 0.0862
2015-02-03 2014-12-31 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 0 -2,900 -100.00 0 -100.00
2014-10-28 2014-09-30 13F BERKSHIRE HATHAWAY INC. CL B com 084670702 2,900 550 23.40 401 34.68 0.0883
2014-07-29 2014-06-30 13F BERKSHIRE HATHAWAY INC. CLASS B com 084670207 2,350 -1,100 -31.88 297 -31.09 0.0639
2014-05-01 2014-03-31 13F BERKSHIRE HATHAWAY INC. CLASS B com 084670207 3,450 -8,100 -70.13 431 -68.52 0.0963
2014-01-28 2013-12-31 13F BERKSHIRE HATHAWAY INC. CLASS B com 084670207 11,550 0 0.00 1,369 4.42 0.3070
2013-10-29 2013-09-30 13F BERKSHIRE HATHAWAY INC. CLASS B com 084670207 11,550 0 0.00 1,311 1.47 0.3270
2013-08-06 2013-06-30 13F BERKSHIRE HATHAWAY INC. CLASS B com 084670207 11,550 11,550 1,293 0.3357
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.