버크셔 해서웨이 Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionWinch Advisory Services, LLC
Latest Disclosed Ownership24,815 shares
Latest Disclosed Value $ 11,891,315
Winch Advisory Services, LLC reports 0.21% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 30, 2026 - Winch Advisory Services, LLC filed a 13F-HR form disclosing ownership of 24,815 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $11,891,315 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2015 disclosing 0 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.21% 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)
2026-04-30 2026-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 24,815 -53 -0.21 11,891 -4.87 2.7145
2026-02-03 2025-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 24,868 -122 -0.49 12,500 -0.50 2.7649
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 24,990 277 1.12 12,563 4.66 2.8268
2025-08-07 2025-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 24,713 -586 -2.32 12,005 -10.90 2.9312
2025-05-06 2025-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,299 -229 -0.90 13,474 16.44 3.5623
2025-01-14 2024-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,528 -308 -1.19 11,571 -2.69 3.0095
2024-10-21 2024-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,836 -198 -0.76 11,891 12.29 3.2886
2024-07-31 2024-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 26,034 40 0.15 10,591 -3.12 3.0287
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,994 176 0.68 10,931 18.71 3.3390
2024-01-18 2023-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,818 156 0.61 9,208 115,000.00 3.0538
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,662 122 0.48 9 0.00 3.2973
2023-08-08 2023-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,540 -108 -0.42 9 14.29 3.1276
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,648 84 0.33 8 0.00 3.0726
2023-01-26 2022-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 25,564 -620 -2.37 8 -99.90 3.3688
2022-10-31 2022-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 26,184 -453 -1.70 6,992 -3.85 3.0032
2022-08-12 2022-06-30 13F BERKSHIRE HATHAWAY INC CL B CL B NEW 084670702 26,637 -1,076 -3.88 7,272 -25.64 2.9674
2022-04-26 2022-03-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 27,713 -816 -2.86 9,780 14.65 3.4004
2022-02-04 2021-12-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 28,529 339 1.20 8,530 10.87 2.8204
2021-11-10 2021-09-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 28,190 236 0.84 7,694 -0.97 2.6819
2021-08-05 2021-06-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 27,954 399 1.45 7,769 10.37 2.7941
2021-05-03 2021-03-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 27,555 776 2.90 7,039 13.37 2.8210
2021-02-09 2020-12-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 26,779 13 0.05 6,209 8.93 2.5800
2020-11-04 2020-09-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 26,766 -323 -1.19 5,700 17.87 2.4132
2020-08-12 2020-06-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 27,089 13,382 97.63 4,836 92.98 2.2990
2020-05-13 2020-03-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 13,707 -8,128 -37.22 2,506 -49.33 1.2462
2020-02-12 2019-12-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 21,835 367 1.71 4,946 10.75 2.3462
2019-11-13 2019-09-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 21,468 -148 -0.68 4,466 -3.08 2.3257
2019-08-07 2019-06-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 21,616 541 2.57 4,608 8.83 2.4012
2019-05-13 2019-03-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 21,075 -5,529 -20.78 4,234 -22.05 2.3409
2019-02-05 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL COM CL B CL B NEW 084670702 26,604 -295 -1.10 5,432 -5.68 3.0218
2018-11-13 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL COM CL B CL B NEW 084670702 26,899 201 0.75 5,759 93.06 2.8940
2018-08-13 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL COM CL B CL B NEW 084670702 26,698 3,579 15.48 2,983 -35.32 1.6075
2018-05-11 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL COM CL B CL B NEW 084670702 23,119 1,938 9.15 4,612 9.86 2.7018
2018-02-13 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL COM CL B CL B NEW 084670702 21,181 2,312 12.25 4,198 21.33 2.5241
2017-11-13 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 18,869 18,869 3,460 2.2506
2017-08-07 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 0 -14,097 -100.00 0 -100.00
2017-05-01 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 14,097 1,387 10.91 2,350 13.47 1.4913
2017-01-19 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 12,710 -1,229 -8.82 2,071 2.83 1.4252
2016-11-02 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 13,939 727 5.50 2,014 5.28 1.6419
2016-08-10 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670207 13,212 -2,157 -14.03 1,913 -12.29 2.3200
2016-05-12 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 15,369 14,244 1,266.13 2,181 1,363.76 3.5183
2016-01-22 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670207 1,125 12 1.08 149 2.76 0.1689
2015-11-13 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670207 1,113 -31,110 -96.55 145 -96.69 0.2119
2015-08-11 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670207 32,223 -75,682 -70.14 4,386 -71.84 2.3972
2015-05-14 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670207 107,905 107,905 0.00 15,573 9.0707
2015-02-11 2014-12-31 13F Berkshire Hathaway Inc - Class B CL B NEW 084670207 0 -102,157 -100.00 0 -100.00
2014-11-14 2014-09-30 13F Berkshire Hathaway Inc - Class B CL B NEW 084670207 102,157 40,230 64.96 14,112 80.07 9.0501
2014-08-15 2014-06-30 13F Berkshire Hathaway Inc - Class B CL B NEW 084670207 61,927 1,922 3.20 7,837 4.51 4.5989
2014-05-14 2014-03-31 13F Berkshire Hathaway Inc - Class B CL B NEW 084670207 60,005 60,005 7,499 4.7489
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.