Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionRiver Wealth Advisors LLC
Latest Disclosed Ownership3,347 shares
Latest Disclosed Value $ 1,603,656
River Wealth Advisors LLC reports 8.83% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - River Wealth Advisors LLC filed a 13F-HR form disclosing ownership of 3,347 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,603,656 USD as of March 31, 2026.

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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,347 -324 -8.83 1,604 -13.12 0.1842
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,671 295 8.74 1,845 8.72 0.2069
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,376 -535 -13.68 1,697 -10.64 0.1984
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,911 522 15.40 1,900 5.27 0.2362
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,389 -482 -12.45 1,805 2.85 0.2509
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,871 -187 -4.61 1,755 -6.05 0.2326
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,058 542 15.42 1,868 30.56 0.2490
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,516 -392 -10.03 1,430 -12.96 0.2051
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,908 -324 -7.66 1,643 8.88 0.2389
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,232 -1,738 -29.11 1,509 -27.83 0.2410
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,970 -825 -12.14 2,091 -9.75 0.3741
2023-08-09 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,795 116 1.74 2,317 12.37 0.3932
2023-05-11 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,679 90 1.37 2,062 1.33 0.3752
2023-02-10 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,589 342 5.47 2,035 22.00 0.3921
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,247 -135 -2.12 1,668 -4.25 0.3595
2022-08-10 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 6,382 1,605 33.60 1,742 3.32 0.3210
2022-05-09 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,777 76 1.62 1,686 19.91 0.2692
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,701 230 5.14 1,406 15.25 0.2180
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,471 852 23.54 1,220 21.27 0.2090
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,619 107 3.05 1,006 12.15 0.1760
2021-05-11 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,512 -94 -2.61 897 7.30 0.1683
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,606 -151 -4.02 836 4.50 0.1807
2020-11-10 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,757 -90 -2.34 800 16.45 0.2088
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,847 -125 -3.15 687 -5.37 0.2086
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,972 -101 -2.48 726 -21.34 0.2900
2020-02-07 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,073 -121 -2.89 923 5.85 0.3121
2019-10-29 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,194 500 13.54 872 10.80 0.3295
2019-07-30 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,694 0 0.00 787 6.06 0.3071
2019-05-07 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,694 -100 -2.64 742 -4.26 0.3107
2019-01-25 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,794 -1,040 -21.51 775 -25.12 0.3446
2018-11-09 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,834 160 3.42 1,035 18.69 0.3815
2018-08-13 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,674 405 9.49 872 2.35 0.3391
2018-05-02 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CLBNEW 084670702 4,269 212 5.23 852 5.97 0.3592
2018-02-09 2017-12-31 13F BERKSHIRE HATHAWAY INC D CL B NEW 084670702 4,057 600 17.36 804 26.81 0.3343
2017-11-06 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,457 41 1.20 634 9.50 0.2868
2017-07-28 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,416 1,029 43.11 579 45.48 0.2695
2017-05-12 2017-03-31 13F BERKSHIRE HATHAWAY INC D CL B NEW 084670702 2,387 -291 -10.87 398 -8.72 0.1931
2017-02-17 2016-12-31 13F BERKSHIRE HATHAWAY INC DE CL B NEW 084670702 2,678 125 4.90 436 18.16 0.2206
2016-11-02 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,553 0 0.00 369 -0.27 0.2040
2016-08-05 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,553 -30 -1.16 370 1.09 0.2124
2016-04-27 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,583 394 18.00 366 26.64 0.2187
2016-01-19 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,189 -216 -8.98 289 -7.96 0.1831
2015-10-26 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,405 375 18.47 314 13.77 0.2156
2015-07-13 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,030 -446 -18.01 276 -22.69 0.1754
2015-05-15 2015-03-31 13F BERKSHIRE HATHAWAY INC DE CL B NEW 084670702 2,476 2,476 357 0.2210
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.