Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionAltfest L J & Co Inc
Latest Disclosed Ownership5,987 shares
Latest Disclosed Value $ 2,868,970
Altfest L J & Co Inc reports 0.32% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 28, 2026 - Altfest L J & Co Inc filed a 13F-HR form disclosing ownership of 5,987 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,868,970 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 6,006 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.32% 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)
2026-04-28 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,987 -19 -0.32 2,869 -4.97 0.3050
2026-01-23 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,006 -117 -1.91 3,019 -1.95 0.3305
2025-10-21 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,123 101 1.68 3,078 5.23 0.3434
2025-08-08 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,022 15 0.25 2,925 -8.57 0.3450
2025-05-09 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,007 10 0.17 3,199 17.70 0.4012
2025-02-07 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,997 -70 -1.15 2,718 135,800.00 0.3467
2024-11-05 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,067 -319 -5.00 3 0.00 0.3717
2024-08-07 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,386 -20 -0.31 3 0.00 0.3550
2024-04-22 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,406 -89 -1.37 3 0.00 0.3815
2024-01-18 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,495 -42 -0.64 2 0.00 0.3358
2023-10-26 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,537 -395 -5.70 2 0.00 0.3612
2023-08-09 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,932 1,850 36.40 2 100.00 0.3553
2023-04-20 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,082 -39 -0.76 2 0.00 0.2458
2023-02-02 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,121 -118 -2.25 2 -99.93 0.2621
2022-11-15 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,239 160 3.15 1,399 0.87 0.2623
2022-08-04 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,079 44 0.87 1,387 -21.95 0.2492
2022-05-02 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,035 43 0.86 1,777 19.02 0.3170
2022-01-24 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,992 14 0.28 1,493 9.86 0.2848
2021-10-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,978 -39 -0.78 1,359 -2.51 0.2847
2021-07-28 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,017 0 0.00 1,394 8.74 0.3005
2021-05-07 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,017 51 1.03 1,282 11.38 0.3030
2021-01-21 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,966 0 0.00 1,151 8.89 0.2820
2020-10-29 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,966 -119 -2.34 1,057 16.41 0.2810
2020-07-21 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,085 -967 -15.98 908 -17.90 0.2613
2020-04-13 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,052 -283 -4.47 1,106 -22.93 0.3464
2020-01-06 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,335 -214 -3.27 1,435 5.36 0.3616
2019-10-10 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,549 363 5.87 1,362 3.26 0.3512
2019-07-15 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,186 -381 -5.80 1,319 0.00 0.3510
2019-06-10 2019-03-31 13F/A-2 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,567 6,567 -2.23 1,319 -3.79 0.3211
2019-05-24 2019-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,717 150 1,371 0.3690
2019-04-05 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,486 23,486 1,441
2019-01-15 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -6,873 -100.00 0 -100.00
2018-10-10 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,873 -250 -3.51 1,472 10.68 0.4284
2018-08-07 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,123 449 6.73 1,330 -0.08 0.4953
2018-05-09 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,674 63 0.95 1,331 1.60 0.5742
2018-02-12 2017-12-31 13F Berkshire Hathaway Cl B COM 084670702 6,611 -80 -1.20 1,310 6.76 0.4974
2017-10-23 2017-09-30 13F Berkshire Hathaway Cl B COM 084670702 6,691 0 0.00 1,227 8.30 0.5965
2017-07-21 2017-06-30 13F Berkshire Hathaway Cl B COM 084670702 6,691 -107 -1.57 1,133 1.89 0.6840
2017-05-03 2017-03-31 13F Berkshire Hathaway Cl B COM 084670702 6,798 -926 -11.99 1,112 -11.68 0.4417
2017-01-09 2016-12-31 13F Berkshire Hathaway Cl B COM 084670702 7,724 -83 -1.06 1,259 11.61 0.6289
2016-11-16 2016-09-30 13F Berkshire Hathaway Cl B COM 084670702 7,807 332 4.44 1,128 4.25 0.7513
2016-11-16 2016-06-30 13F Berkshire Hathaway Cl B COM 084670702 7,475 0 0.00 1,082 1.98 0.7538
2016-05-13 2016-03-31 13F Berkshire Hathaway Cl B COM 084670702 7,475 0 0.00 1,061 7.50 1.0921
2016-02-19 2015-12-31 13F Berkshire Hathaway Cl B COM 084670702 7,475 -271 -3.50 987 -2.28 0.9660
2015-10-14 2015-09-30 13F Berkshire Hathaway Cl B COM 084670702 7,746 200 2.65 1,010 -1.66 0.9974
2015-07-17 2015-06-30 13F Berkshire Hathaway Cl B COM 084670702 7,546 108 1.45 1,027 -4.29 0.9416
2015-04-20 2015-03-31 13F Berkshire Hathaway Cl B COM 084670702 7,438 -364 -4.67 1,073 -8.37 0.9988
2015-02-23 2014-12-31 13F/A-1 Berkshire Hathaway Cl B COM 084670702 7,802 -28 -0.36 1,171 22.88 0.9579
2015-02-11 2014-12-31 13F Berkshire Hathaway Cl B COM 084670702 7,802 1,171
2014-05-13 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 7,830 -474 -5.71 953 -3.25 0.8850
2014-02-14 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 8,304 8,304 985 0.8384
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.