Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionShayne & Co., Llc
Latest Disclosed Ownership165,562 shares
Latest Disclosed Value $ 79,337,310
Shayne & Co., Llc reports 1.62% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 28, 2026 - Shayne & Co., Llc filed a 13F-HR form disclosing ownership of 165,562 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $79,337,310 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 168,286 shares of Berkshire Hathaway Inc.. This represents a change in shares of -1.62% 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)
2026-04-28 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 165,562 -2,724 -1.62 79,337 -6.21 19.8570
2026-01-27 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,286 -2,037 -1.20 84,589 -1.21 18.2805
2025-11-05 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 170,323 -589 -0.34 85,628 3.14 26.5079
2025-07-24 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 170,912 -118,766 -41.00 83,024 -46.19 27.4459
2025-05-02 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 289,678 -1,178 -0.41 154,277 17.02 37.9713
2025-02-05 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 290,856 -1,078 -0.37 131,839 -1.88 34.5200
2024-10-23 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 291,934 0 0.00 134,366 13.14 33.6989
2024-07-19 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 291,934 57 0.02 118,759 -3.24 32.9614
2024-05-08 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 291,877 -1,285 -0.44 122,740 17.39 33.3852
2024-02-07 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 293,162 766 0.26 104,559 2.08 32.4757
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 292,396 7,118 2.50 102,426 5.29 34.0993
2023-08-04 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 285,278 -1,292 -0.45 97,280 9.94 49.3349
2023-05-05 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 286,570 900 0.32 88,484 0.27 48.2507
2023-02-08 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 285,670 831 0.29 88,243 16.02 48.9186
2022-11-08 2022-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 284,839 1,208 0.43 76,058 -1.78 47.8674
2022-10-21 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 284,839 1,208 76,058 47.8674
2022-07-22 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 283,631 7,350 2.66 77,437 -20.58 45.9450
2022-04-25 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,281 -112 -0.04 97,502 17.98 48.0426
2022-02-07 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,393 1,907 0.69 82,642 10.31 44.4551
2021-10-27 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 274,486 -5,816 -2.07 74,918 -3.83 43.2642
2021-07-29 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 280,302 -388 -0.14 77,902 8.64 43.7094
2021-04-30 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 280,690 -1,358 -0.48 71,708 9.65 42.9695
2021-02-09 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,048 -573 -0.20 65,399 8.67 42.7288
2020-11-09 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,621 -1,520 -0.53 60,181 18.65 44.2937
2020-08-11 2020-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 284,141 1,350 0.48 50,722 -1.90 42.8468
2020-08-07 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 284,141 1,350 50,722 26,073,859.3136
2020-05-05 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,791 994 0.35 51,702 -19.00 41.2290
2020-01-31 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 281,797 -715 -0.25 63,827 8.61 38.0043
2019-10-28 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,512 3,179 1.14 58,768 -1.30 37.8816
2019-07-24 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 279,333 8,247 3.04 59,545 9.34 39.1386
2019-05-03 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 271,086 -3,790 -1.38 54,458 -2.97 38.0697
2019-02-12 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 274,876 -273 -0.10 56,124 -4.73 40.8611
2018-10-29 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 275,149 -1,278 -0.46 58,912 14.18 39.3523
2018-07-26 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,427 70 0.03 51,595 -6.41 36.9724
2018-04-18 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,357 -868 -0.31 55,128 0.32 39.0146
2018-01-24 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 277,225 1,128 0.41 54,952 8.57 37.7558
2017-11-01 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,097 -269 -0.10 50,614 8.13 38.2376
2017-07-21 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 276,366 -1,681 -0.60 46,808 1.00 37.2183
2017-04-27 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 278,047 -1,469 -0.53 46,345 1.73 36.5964
2017-02-03 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 279,516 -308 -0.11 45,556 12.69 34.7390
2016-10-18 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 279,824 -2,695 -0.95 40,426 -1.17 33.4295
2016-07-21 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,519 3,810 1.37 40,906 3.45 33.8514
2016-04-26 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 278,709 22,331 8.71 39,543 16.81 33.7772
2016-02-11 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 256,378 -383 -0.15 33,852 1.11 32.2357
2015-10-22 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 256,761 6,387 2.55 33,482 -1.75 28.6710
2015-07-17 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 250,374 -1,639 -0.65 34,078 -6.30 28.4567
2015-04-27 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 252,013 252,013 0.00 36,371 28.2083
2015-01-29 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -253,895 -100.00 0 -100.00
2014-10-28 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 253,895 -9,543 -3.62 35,073 5.19 27.3610
2014-07-28 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 263,438 -1,355 -0.51 33,341 0.76 26.6892
2014-04-23 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 264,793 1,111 0.42 33,091 5.85 26.4976
2014-01-23 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 263,682 4,512 1.74 31,262 6.27 26.0647
2013-10-11 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 259,170 -2,706 -1.03 29,418 0.37 26.5834
2013-07-19 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 261,876 261,876 29,309 26.0349
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.