Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionOppenheimer Asset Management Inc.
Latest Disclosed Ownership110,659 shares
Latest Disclosed Value $ 53,027,793
Oppenheimer Asset Management Inc. ownership in BRKB / Berkshire Hathaway Inc.

On April 23, 2026 - Oppenheimer Asset Management Inc. filed a 13F-HR form disclosing ownership of 110,659 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $53,027,793 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 0 shares of Berkshire Hathaway Inc..

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)
2026-04-23 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 110,659 110,659 53,028 0.1515
2026-02-02 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -100.00 0
2025-11-06 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 112,709 -420 -0.37 56,663 3.11 0.1421
2025-07-31 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 113,129 -22,620 -16.66 54,955 -23.99 0.6303
2025-04-23 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 135,749 -62,725 -31.60 72,297 -19.64 0.8972
2025-02-05 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 198,474 -1,326 -0.66 89,964 -2.17 1.0935
2024-11-05 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 199,800 -23,063 -10.35 91,960 1.43 1.1071
2024-08-08 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 222,863 27,602 14.14 90,661 10.41 1.1581
2024-05-07 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 195,261 -25,734 -11.64 82,111 4.18 1.2031
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 220,995 -1,166 -0.52 78,820 1.28 1.0965
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 222,161 3,640 1.67 77,823 4.44 1.1942
2023-08-03 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 218,521 7,260 3.44 74,516 14.23 1.0960
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 211,261 2,208 1.06 65,231 1.01 1.0046
2023-02-07 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 209,053 2,170 1.05 64,576 16.90 1.0394
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 206,883 5,593 2.78 55,242 0.52 0.9744
2022-08-08 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 201,290 1,004 0.50 54,957 -22.25 0.9208
2022-05-12 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 200,286 -61,695 -23.55 70,683 -9.76 1.0033
2022-02-02 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 261,981 -191 -0.07 78,331 9.47 1.0386
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 262,172 3,322 1.28 71,558 -0.53 1.0175
2021-08-03 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 258,850 -1,148 -0.44 71,940 8.30 1.0245
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 259,998 3,494 1.36 66,424 11.68 1.0294
2021-02-11 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 256,504 -1,689 -0.65 59,475 8.18 0.9931
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 258,193 -4,486 -1.71 54,980 17.25 1.0675
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 262,679 3,323 1.28 46,892 -1.11 0.9676
2020-05-08 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 259,356 17,902 7.41 47,418 -13.29 1.1650
2020-02-07 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 241,454 511 0.21 54,688 9.11 1.1553
2019-10-31 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 240,943 4,539 1.92 50,121 -0.54 1.1134
2019-08-09 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 236,404 666 0.28 50,395 6.41 1.1135
2019-04-24 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 235,738 1,868 0.80 47,358 -0.82 1.0638
2019-01-30 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 233,870 -98 -0.04 47,751 -4.68 1.1831
2018-10-26 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 233,968 3,593 1.56 50,095 16.50 1.1099
2018-08-10 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 230,375 389 0.17 43,000 -6.27 1.0518
2018-05-09 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 229,986 -8,692 -3.64 45,878 5.70 1.1508
2018-02-07 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 238,678 0 0.00 43,405 0.00 1.1517
2017-11-14 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 238,678 2,176 0.92 43,405 8.36 1.1275
2017-08-09 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 236,502 6,650 2.89 40,057 4.55 1.1067
2017-05-15 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 229,852 229,852 38,313 1.0914
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.