Berkshire Hathaway Inc.
US ˙ NYSE

SecurityBRK.B / Berkshire Hathaway Inc.
InstitutionGrimes & Company, Inc.
Latest Disclosed Ownership23,767 shares
Latest Disclosed Value $ 11,389,134
Grimes & Company, Inc. reports 5.09% increase in ownership of BRK.B / Berkshire Hathaway Inc.

On April 21, 2026 - Grimes & Company, Inc. filed a 13F-HR form disclosing ownership of 23,767 shares of Berkshire Hathaway Inc. (US:BRK.B) valued at $11,389,146 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 22,615 shares of Berkshire Hathaway Inc.. This represents a change in shares of 5.09% during the quarter. The current value of the position is $11,298,119 USD.

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)
2026-04-21 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,767 1,152 5.09 11,389 0.19 0.2619
2026-02-03 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,615 1,554 7.38 11,367 7.36 0.2716
2025-10-27 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,061 3,109 17.32 10,588 21.42 0.2614
2025-07-22 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,952 -38 -0.21 8,720 -8.98 0.2373
2025-04-17 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,990 326 1.85 9,581 19.66 0.2962
2025-01-21 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,664 876 5.22 8,007 3.61 0.2307
2024-10-22 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,788 -115 -0.68 7,727 12.38 0.2091
2024-07-22 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,903 -116 -0.68 6,876 -3.91 0.2058
2024-04-17 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,019 523 3.17 7,157 21.64 0.2200
2024-01-24 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,496 1,216 7.96 5,884 9.92 0.1948
2023-10-19 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,280 41 0.27 5,353 3.00 0.2070
2023-07-19 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,239 -146 -0.95 5,196 9.39 0.1843
2023-04-20 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,385 -80 -0.52 4,750 -0.57 0.1947
2023-01-25 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,465 -161 -1.03 4,777 14.50 0.2017
2022-10-28 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,626 38 0.24 4,172 -1.97 0.2177
2022-07-22 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,588 -45 -0.29 4,256 -22.86 0.2146
2022-05-06 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,633 -29 -0.19 5,517 17.81 0.2577
2022-02-01 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,662 898 6.08 4,683 16.20 0.2144
2021-11-08 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,764 -284 -1.89 4,030 -3.63 0.1754
2021-08-04 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,048 -2,565 -14.56 4,182 -7.07 0.1815
2021-05-12 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,613 -2,138 -10.82 4,500 -1.75 0.2164
2021-02-02 2020-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 19,751 450 2.33 4,580 11.44 0.2379
2020-11-12 2020-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,301 7 0.04 4,110 19.34 0.2629
2020-07-31 2020-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,294 -1,724 -8.20 3,444 -10.38 0.2393
2020-05-05 2020-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 21,018 -12 -0.06 3,843 -19.32 0.3508
2020-02-05 2019-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 21,030 920 4.57 4,763 13.87 0.3121
2019-11-05 2019-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 20,110 456 2.32 4,183 -0.17 0.2980
2019-07-30 2019-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,654 -479 -2.38 4,190 3.58 0.3180
2019-05-02 2019-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 20,133 -29 -0.14 4,045 -1.75 0.3171
2019-02-01 2018-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 20,162 1,048 5.48 4,117 0.59 0.4018
2018-11-09 2018-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,114 246 1.30 4,093 16.25 0.3277
2018-08-10 2018-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 18,868 -108 -0.57 3,521 -7.00 0.3112
2018-05-07 2018-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 18,976 -29 -0.15 3,786 0.50 0.3668
2018-02-05 2017-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,005 -75 -0.39 3,767 7.69 0.3636
2017-11-03 2017-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 19,080 2,557 15.48 3,498 25.02 0.3719
2017-07-18 2017-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 16,523 190 1.16 2,798 2.79 0.3122
2017-05-01 2017-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 16,333 144 0.89 2,722 3.18 0.2982
2017-01-24 2016-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 16,189 1,587 10.87 2,638 25.02 0.3060
2016-10-24 2016-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,602 0 0.00 2,110 -0.19 0.2824
2016-07-25 2016-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,602 102 0.70 2,114 2.77 0.2825
2016-04-25 2016-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,500 128 0.89 2,057 8.38 0.2646
2016-02-03 2015-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,372 -15 -0.10 1,898 1.17 0.2563
2015-10-08 2015-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,387 140 0.98 1,876 -3.25 0.2414
2015-08-11 2015-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,247 -123 -0.86 1,939 -6.51 0.2731
2015-04-24 2015-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,370 -100 -0.69 2,074 -4.56 0.4985
2015-02-12 2014-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,470 -1,021 -6.59 2,173 1.54 0.5617
2014-11-06 2014-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 15,491 413 2.74 2,140 12.16 0.5601
2014-07-28 2014-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 15,078 399 2.72 1,908 4.03 0.4999
2014-05-01 2014-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,679 268 1.86 1,834 7.31 0.5151
2014-02-03 2013-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670207 14,411 157 1.10 1,709 5.62 0.5107
2013-10-29 2013-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 14,254 517 3.76 1,618 5.20 0.5473
2013-07-30 2013-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670207 13,737 13,737 1,538 0.5609
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.