Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionRockland Trust Co
Latest Disclosed Ownership15,096 shares
Latest Disclosed Value $ 7,234,003
Rockland Trust Co reports 10.68% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 16, 2026 - Rockland Trust Co filed a 13F-HR form disclosing ownership of 15,096 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $7,234,003 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 16,901 shares of Berkshire Hathaway Inc.. This represents a change in shares of -10.68% 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)
2026-04-16 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,096 -1,805 -10.68 7,234 -14.84 0.2700
2026-01-15 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,901 -2,404 -12.45 8,495 -12.47 0.3167
2025-11-06 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,305 -2,923 -13.15 9,705 -10.11 0.3977
2025-07-10 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,228 -50,487 -69.43 10,798 -72.12 0.5258
2025-04-16 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 72,715 -2,926 -3.87 38,727 12.95 1.9466
2025-01-14 2024-12-31 13F Berkshire Hathaway CL B NEW 084670702 75,641 675 0.90 34,287 -0.63 1.7433
2024-10-03 2024-09-30 13F Berkshire Hathaway CL B NEW 084670702 74,966 -3,361 -4.29 34,504 8.29 1.6980
2024-07-23 2024-06-30 13F Berkshire Hathaway CL B NEW 084670702 78,327 -16,196 -17.13 31,863 -19.84 1.6799
2024-04-11 2024-03-31 13F Berkshire Hathaway CL B NEW 084670702 94,523 -2,214 -2.29 39,749 15.20 2.0943
2024-01-11 2023-12-31 13F Berkshire Hathaway CL B NEW 084670702 96,737 1,026 1.07 34,502 2.91 1.8885
2023-10-26 2023-09-30 13F Berkshire Hathaway CL B NEW 084670702 95,711 3,981 4.34 33,528 7.19 2.0180
2023-07-27 2023-06-30 13F Berkshire Hathaway CL B NEW 084670702 91,730 -56 -0.06 31,280 10.37 1.8690
2023-04-24 2023-03-31 13F Berkshire Hathaway CL B NEW 084670702 91,786 -10,592 -10.35 28,341 91,319.35 1.7808
2023-01-24 2022-12-31 13F Berkshire Hathaway CL B NEW 084670702 102,378 695 0.68 32 -99.89 2.0089
2022-10-19 2022-09-30 13F Berkshire Hathaway CL B NEW 084670702 101,683 3,669 3.74 27,151 1.46 1.9370
2022-07-13 2022-06-30 13F Berkshire Hathaway CL B NEW 084670702 98,014 7,906 8.77 26,760 -15.85 1.8504
2022-04-18 2022-03-31 13F Berkshire Hathaway CL B NEW 084670702 90,108 9,486 11.77 31,801 31.92 2.0238
2022-01-27 2021-12-31 13F Berkshire Hathaway CL B NEW 084670702 80,622 2,146 2.73 24,106 12.54 1.5355
2021-10-25 2021-09-30 13F Berkshire Hathaway CL B NEW 084670702 78,476 12,599 19.13 21,420 16.99 1.4939
2021-07-21 2021-06-30 13F Berkshire Hathaway CL B NEW 084670702 65,877 59,429 921.67 18,309 1,011.66 1.2655
2021-04-22 2021-03-31 13F Berkshire Hathaway CL B NEW 084670702 6,448 -20 -0.31 1,647 9.80 0.1186
2021-01-04 2020-12-31 13F Berkshire Hathaway CL B NEW 084670702 6,468 -5 -0.08 1,500 8.77 0.1165
2020-10-08 2020-09-30 13F Berkshire Hathaway CL B NEW 084670702 6,473 -235 -3.50 1,379 15.11 0.1185
2020-07-09 2020-06-30 13F Berkshire Hathaway CL B NEW 084670702 6,708 262 4.06 1,198 1.61 0.1077
2020-04-16 2020-03-31 13F Berkshire Hathaway CL B NEW 084670702 6,446 -277 -4.12 1,179 -22.59 0.1200
2020-01-06 2019-12-31 13F Berkshire Hathaway CL B NEW 084670702 6,723 -42 -0.62 1,523 9.81 0.1254
2019-10-11 2019-09-30 13F Berkshire Hathaway CL B NEW 084670702 6,765 -19 -0.28 1,387 -4.08 0.1261
2019-07-05 2019-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 6,784 443 6.99 1,446 13.50 0.1433
2019-04-08 2019-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 6,341 145 2.34 1,274 0.71 0.1351
2019-01-16 2018-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 6,196 50 0.81 1,265 -3.88 0.1552
2018-10-05 2018-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 6,146 382 6.63 1,316 22.30 0.1608
2018-07-06 2018-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 5,764 284 5.18 1,076 -1.56 0.1390
2018-04-10 2018-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 5,480 1,125 25.83 1,093 26.65 0.1445
2018-01-11 2017-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 4,355 1,045 31.57 863 42.17 0.1111
2017-11-01 2017-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,310 0 0.00 607 8.20 0.0908
2017-08-01 2017-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,310 -175 -5.02 561 -3.44 0.0878
2017-04-20 2017-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,485 -80 -2.24 581 0.00 0.0917
2017-01-30 2016-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,565 -310 -8.00 581 3.75 0.0931
2016-10-27 2016-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,875 -1,044 -21.22 560 -21.35 0.0970
2016-07-20 2016-06-30 13F/A-1 BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 4,919 1,259 34.40 712 37.19 0.1232
2016-07-20 2016-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,660 519
2016-05-04 2016-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,660 -419 -10.27 519 -3.71 0.0932
2016-01-28 2015-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 4,079 77 1.92 539 3.26 0.0950
2015-10-28 2015-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 4,002 -3,005 -42.89 522 -45.28 0.1026
2015-07-22 2015-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 7,007 124 1.80 954 -3.93 0.1894
2015-04-24 2015-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 6,883 6,883 0.00 993 0.2100
2015-02-04 2014-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 0 -3,851 -100.00 0 -100.00
2014-11-05 2014-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,851 157 4.25 532 13.68 0.1171
2014-08-04 2014-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,694 0 0.00 468 1.30 0.1063
2014-05-02 2014-03-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,694 -25 -0.67 462 4.76 0.1086
2014-02-04 2013-12-31 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,719 -150 -3.88 441 0.46 0.1061
2013-11-12 2013-09-30 13F/A-1 BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,869 0 0.00 439 1.39 0.1160
2013-10-21 2013-09-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,869 439
2013-08-12 2013-06-30 13F BERKSHIRE HATHAWAY INC-CL B COMMON STOCK 084670702 3,869 3,869 433 0.1199
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.