Berkshire Hathaway Inc.
US ˙ NYSE

SecurityBRK.B / Berkshire Hathaway Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership14,078 shares
Latest Disclosed Value $ 7,078
Shell Asset Management Co reports 80.32% decrease in ownership of BRK.B / Berkshire Hathaway Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 14,078 shares of Berkshire Hathaway Inc. (US:BRK.B) valued at $7,077,574 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 71,547 shares of Berkshire Hathaway Inc.. This represents a change in shares of -80.32% during the quarter. The current value of the position is $6,738,153 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)
2025-11-07 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 14,078 -57,469 -80.32 7 -79.41 0.7109
2025-07-23 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 71,547 5,404 8.17 35 -2.86 1.2001
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 66,143 6,217 10.37 35 29.63 1.6725
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 59,926 5,269 9.64 27 8.00 1.1867
2024-11-07 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 54,657 7,988 17.12 25 38.89 1.1072
2024-07-25 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 46,669 -1,106 -2.32 19 5.88 0.8644
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 47,775 -13,812 -22.43 17 -19.05 0.7870
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 61,587 -12,995 -17.42 22 -16.00 0.8915
2023-07-28 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 74,582 -2,666 -3.45 25 8.70 1.0031
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 77,248 34 0.04 24 0.00 0.9899
2023-02-07 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 77,214 -14,762 -16.05 24 -99.91 1.0447
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 91,976 -21,893 -19.23 24,559 -21.00 0.9571
2022-08-09 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 113,869 -10,426 -8.39 31,089 -29.13 0.9197
2022-05-04 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 124,295 10,703 9.42 43,865 29.15 1.0354
2022-02-09 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 113,592 -1,249 -1.09 33,964 8.36 0.6969
2021-11-04 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 114,841 -19,446 -14.48 31,345 -16.01 0.7037
2021-08-12 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 134,287 14,298 11.92 37,321 21.75 0.7235
2021-05-10 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 119,989 32,724 37.50 30,654 51.50 0.6133
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 87,265 9,343 11.99 20,234 21.94 0.4178
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 77,922 -580 -0.74 16,593 18.41 0.3858
2020-08-10 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 78,502 -20,988 -21.10 14,013 -22.96 0.3498
2020-05-11 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 99,490 -7,339 -6.87 18,190 -24.83 0.5068
2020-02-13 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 106,829 -21,234 -16.58 24,197 -9.17 0.5213
2019-11-12 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 128,063 -2,545 -1.95 26,640 -4.32 0.6084
2019-08-12 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 130,608 -5,253 -3.87 27,842 2.01 0.6161
2019-05-09 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 135,861 694 0.51 27,293 -1.11 0.6018
2019-02-13 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 135,167 -18,640 -12.12 27,598 -16.20 0.6879
2018-11-13 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 153,807 1,419 0.93 32,932 15.78 0.6500
2018-08-10 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 152,388 -10,180 -6.26 28,443 -12.29 0.5831
2018-05-14 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 162,568 16,722 11.47 32,429 12.17 0.6457
2018-02-09 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 145,846 35,721 32.44 28,910 43.20 0.5739
2017-10-20 2017-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 110,125 -18,421 -14.33 20,188 -7.28 0.4489
2017-10-20 2017-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 128,546 -15,596 -10.82 21,772 -9.38 3.3415
2017-10-20 2017-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 144,142 119 0.08 24,026 2.36 3.7914
2017-10-20 2016-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 144,023 -23,494 -14.02 23,473 -3.01 4.1401
2017-10-20 2016-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 167,517 167,517 24,201 3.8054
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.