Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBirinyi Associates Inc
Latest Disclosed Ownership15,337 shares
Latest Disclosed Value $ 7,349
Birinyi Associates Inc reports 5.54% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 4, 2026 - Birinyi Associates Inc filed a 13F-HR form disclosing ownership of 15,337 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $7,349 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 6 shares of Berkshire Hathaway Inc.. This represents a change in shares of -5.54% 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)
2026-05-04 2026-03-31 13F Berkshire Hathaway Common Stock 084670702 15,337 -900 -5.54 7 -12.50 2.0015
2026-02-10 2025-12-31 13F Berkshire Hathaway Common Stock 084670702 16,237 -312 -1.89 8 0.00 2.0412
2025-10-29 2025-09-30 13F Berkshire Hathaway Common Stock 084670702 16,549 -309 -1.83 8 0.00 2.1245
2025-07-23 2025-06-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,858 -85 -0.50 8 -11.11 2.3952
2025-05-05 2025-03-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,943 0 0.00 9 -99.88 2.9151
2025-02-04 2024-12-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,943 -50 -0.29 7,680 109,600.00 2.1138
2024-11-14 2024-09-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,993 55 0.32 8 -99.90 2.2450
2024-08-01 2024-06-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,938 -152 -0.89 6,890 -4.12 2.0634
2024-04-23 2024-03-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 17,090 -15 -0.09 7,187 119,666.67 2.3441
2024-01-10 2023-12-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 17,105 755 4.62 6 20.00 2.1680
2023-11-14 2023-09-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,350 50 0.31 6 0.00 2.2851
2023-08-08 2023-06-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,300 -250 -1.51 6 0.00 2.0297
2023-05-10 2023-03-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,550 475 2.95 5 25.00 2.1123
2023-02-08 2022-12-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 16,075 -1,175 -6.81 5 -99.91 2.3848
2022-11-08 2022-09-30 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 17,250 4,000 30.19 4,606 27.31 2.1483
2022-08-02 2022-06-30 13F Berkshire Hathaway Common Stock 084670702 13,250 -1,700 -11.37 3,618 -31.43 1.6365
2022-04-05 2022-03-31 13F Berkshire Hathaway Inc - CL B Common Stock 084670702 14,950 2,150 16.80 5,276 37.86 1.8183
2022-01-26 2021-12-31 13F Berkshire Hathaway Common Stock 084670702 12,800 506 4.12 3,827 14.03 1.1989
2021-10-18 2021-09-30 13F Berkshire Hathaway Common Stock 084670702 12,294 -450 -3.53 3,356 -5.25 1.3817
2021-08-05 2021-06-30 13F Berkshire Hathaway Common Stock 084670702 12,744 1,050 8.98 3,542 18.58 1.2291
2021-05-11 2021-03-31 13F Berkshire Hathaway Common Stock 084670702 11,694 -3,584 -23.46 2,987 -15.69 1.1382
2021-02-11 2020-12-31 13F Berkshire Hathaway Common Stock 084670702 15,278 7,900 107.08 3,543 125.53 1.3109
2020-11-06 2020-09-30 13F Berkshire Hathaway Common Stock 084670702 7,378 -216 -2.84 1,571 15.86 0.6633
2020-08-06 2020-06-30 13F Berkshire Hathaway Common Stock 084670702 7,594 -4,600 -37.72 1,356 -39.17 0.6702
2020-05-12 2020-03-31 13F Berkshire Hathaway Common Stock 084670702 12,194 -1,270 -9.43 2,229 -26.92 1.2147
2020-02-12 2019-12-31 13F Berkshire Hathaway Common Stock 084670702 13,464 120 0.90 3,050 9.87 1.2628
2019-11-12 2019-09-30 13F Berkshire Hathaway Common Stock 084670702 13,344 -1,450 -9.80 2,776 -11.98 1.2041
2019-08-05 2019-06-30 13F Berkshire Hathaway Common Stock 084670702 14,794 -3,250 -18.01 3,154 -12.99 1.3243
2019-05-08 2019-03-31 13F Berkshire Hathaway Common Stock 084670702 18,044 4,500 33.23 3,625 31.10 1.5520
2019-02-07 2018-12-31 13F Berkshire Hathaway Common Stock 084670702 13,544 944 7.49 2,765 2.48 1.3795
2018-11-01 2018-09-30 13F Berkshire Hathaway Common Stock 084670702 12,600 -6,821 -35.12 2,698 -25.57 0.9596
2018-08-10 2018-06-30 13F Berkshire Hathaway Common Stock 084670702 19,421 4,650 31.48 3,625 23.01 1.4205
2018-04-26 2018-03-31 13F Berkshire Hathaway Common Stock 084670702 14,771 2,750 22.88 2,947 23.67 1.1999
2018-02-12 2017-12-31 13F Berkshire Hathaway Common Stock 084670702 12,021 2,100 21.17 2,383 31.01 1.0643
2017-11-14 2017-09-30 13F Berkshire Hathaway Common Stock 084670702 9,921 -100 -1.00 1,819 7.19 0.8652
2017-08-08 2017-06-30 13F Berkshire Hathaway Common Stock 084670702 10,021 -600 -5.65 1,697 -4.12 0.7984
2017-05-11 2017-03-31 13F Berkshire Hathaway Common Stock 084670702 10,621 3,171 42.56 1,770 45.80 0.8804
2017-02-13 2016-12-31 13F Berkshire Hathaway Common Stock 084670702 7,450 -1,350 -15.34 1,214 -4.48 0.6861
2016-11-10 2016-09-30 13F Berkshire Hathaway Common Stock 084670702 8,800 6,950 375.68 1,271 374.25 0.6858
2016-08-10 2016-06-30 13F Berkshire Hathaway Common Stock 084670702 1,850 100 5.71 268 8.06 0.1171
2016-05-06 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 1,750 0 0.00 248 7.36 0.1098
2016-02-10 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 1,750 -1,950 -52.70 231 -52.07 0.1503
2015-11-13 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 3,700 -2,450 -39.84 482 -42.41 0.2090
2015-08-11 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 6,150 -4,729 -43.47 837 -46.69 0.5699
2015-05-15 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 10,879 8,485 354.43 1,570 337.33 1.0389
2015-02-13 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 2,394 -44 -1.80 359 6.53 0.1608
2014-11-13 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 2,438 0 0.00 337 9.06 0.1533
2014-08-13 2014-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 2,438 76 3.22 309 4.75 0.1416
2014-08-13 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 2,362 295
2014-05-14 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 2,362 -808 -25.49 295 -21.54 0.1500
2014-02-14 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL Common Stock 084670702 3,170 920 40.89 376 47.45 0.2006
2013-11-14 2013-09-30 13F BERKSHIRE HATH-B Common Stock 084670702 2,250 2,250 255 0.1438
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.