Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionHarris Associates L P
ManagerVictor Morgenstern
Latest Disclosed Ownership25,439 shares
Latest Disclosed Value $ 12,190,369
Harris Associates L P reports 2.15% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Harris Associates L P filed a 13F-HR form disclosing ownership of 25,439 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $12,190,369 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 25,999 shares of Berkshire Hathaway Inc.. This represents a change in shares of -2.15% 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)
2026-05-15 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,439 -560 -2.15 12,190 -6.72 0.0162
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,999 -1,047 -3.87 13,068 -3.89 0.0165
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,046 -653 -2.36 13,597 1.06 0.0218
2025-08-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,699 -983 -3.43 13,455 -11.91 0.0219
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,682 -3,904 -11.98 15,275 3.42 0.0257
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 32,586 -6,817 -17.30 14,771 -18.56 0.0245
2024-11-14 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 39,403 -3,910 -9.03 18,136 2.93 0.0298
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,313 -2,725 -5.92 17,620 -8.99 0.0298
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 46,038 -28,390 -38.14 19,360 -27.07 0.0313
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 74,428 -5,258 -6.60 26,545 -4.90 0.0457
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 79,686 -352,291 -81.55 27,914 -81.05 0.0543
2023-08-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 431,977 -925,866 -68.19 147,304 -64.87 0.2773
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,357,843 -224,307 -14.18 419,261 -14.21 0.8139
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,582,150 -439,181 -21.73 488,726 -9.45 0.9952
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,021,331 -150,549 -6.93 539,736 -8.98 1.1679
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,171,880 -82,752 -3.67 592,967 -25.48 1.1814
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,254,632 -980,349 -30.30 795,682 -17.74 1.2796
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,234,981 -63,444 -1.92 967,259 7.44 1.5058
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,298,425 13,833 0.42 900,272 -1.38 1.4342
2021-08-16 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,284,592 26,768 0.82 912,854 9.68 1.4537
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,257,824 295,021 9.96 832,276 21.15 1.4223
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,962,803 66,502 2.30 686,985 11.39 1.3286
2020-11-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,896,301 142,074 5.16 616,738 25.44 1.5017
2020-08-14 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,754,227 582,848 26.84 491,657 23.85 1.1960
2020-05-15 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,171,379 1,285,520 145.12 396,993 97.86 1.0995
2020-02-14 2019-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 885,859 885,859 200,647 0.3557
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 885,859 200,647
2015-08-11 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -15,927 -100.00 0 -100.00
2015-05-14 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,927 -10,992 -40.83 2,299 -43.12 0.0036
2015-01-23 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,919 -440 -1.61 4,042 6.96 0.0063
2014-11-12 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,359 300 1.11 3,779 10.34 0.0062
2014-08-12 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,059 -849 -3.04 3,425 -1.81 0.0058
2014-04-25 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,908 3,640 15.00 3,488 21.24 0.0062
2014-02-10 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,268 1,050 4.52 2,877 9.18 0.0051
2013-11-12 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,218 -1,000 -4.13 2,635 -2.77 0.0051
2013-08-12 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,218 24,218 2,710 0.0057
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.