Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionArgent Trust Co
Latest Disclosed Ownership48,401 shares
Latest Disclosed Value $ 23,193,754
Argent Trust Co reports 0.98% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Argent Trust Co filed a 13F-HR form disclosing ownership of 48,401 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $23,193,754 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 14 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.98% 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 48,401 470 0.98 23,194 -3.73 0.3066
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 47,931 -1,258 -2.56 24,093 -2.58 0.8263
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 49,189 -966 -1.93 24,729 1.50 0.8764
2025-08-12 2025-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 50,155 242 0.48 24,364 -8.35 0.9195
2025-05-09 2025-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 49,913 -227 -0.45 26,583 16.96 1.0910
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 50,140 5,475 12.26 22,727 10.56 0.9265
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 44,665 304 0.69 20,558 13.91 0.8510
2024-08-12 2024-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 44,361 1,505 3.51 18,046 0.14 0.7945
2024-05-10 2024-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,856 -447 -1.03 18,022 16.69 0.8107
2024-02-09 2023-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 43,303 618 1.45 15,444 3.29 0.7683
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,685 1,661 4.05 14,953 6.88 0.8196
2023-08-11 2023-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 41,024 74 0.18 13,989 10.64 0.7578
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 40,950 -390 -0.94 12,644 -0.98 0.8009
2023-02-10 2022-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 41,340 -1,932 -4.46 12,770 10.51 0.8446
2022-11-10 2022-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 43,272 387 0.90 11,555 -1.32 0.8364
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,885 846 2.01 11,709 -21.08 0.8034
2022-05-11 2022-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,039 167 0.40 14,836 18.51 0.9045
2022-02-09 2021-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 41,872 -938 -2.19 12,519 7.15 0.7329
2021-11-09 2021-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,810 2,011 4.93 11,684 3.04 0.7508
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 40,799 791 1.98 11,339 10.94 0.7441
2021-05-12 2021-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 40,008 -2,317 -5.47 10,221 4.15 0.7184
2021-02-11 2020-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 42,325 499 1.19 9,814 10.20 0.7584
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 41,826 482 1.17 8,906 20.66 0.7847
2020-08-04 2020-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 41,344 3,705 9.84 7,381 7.27 0.6916
2020-05-11 2020-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 37,639 736 1.99 6,881 -17.68 0.7733
2020-02-11 2019-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 36,903 972 2.71 8,359 11.84 0.7435
2019-11-12 2019-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 35,931 3,709 11.51 7,474 8.81 0.7206
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 32,222 599 1.89 6,869 8.14 0.6966
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 31,623 125 0.40 6,352 -1.23 0.6651
2019-02-06 2018-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 31,498 7,899 33.47 6,431 27.85 0.7548
2018-11-14 2018-09-30 13F BERKSHIRE HATHAWAY INC CLASS B COM 084670702 23,599 -377 -1.57 5,030 12.45 0.5799
2019-04-15 2018-06-30 13F/A-1 BERKSHIRE HATHAWAY INC CLASS B COM 084670702 23,976 6,848 39.98 4,473 30.90 0.5455
2018-08-15 2018-06-30 13F BERKSHIRE HATHAWAY INC CLASS B COM 084670702 31,159 14,031 5,816
2018-05-15 2018-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 17,128 1,354 8.58 3,417 9.27 0.9800
2018-02-12 2017-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,774 431 2.81 3,127 11.16 1.2236
2017-11-13 2017-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,343 -506 -3.19 2,813 4.81 1.1095
2017-08-09 2017-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,849 124 0.79 2,684 2.40 1.1078
2017-05-08 2017-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,725 217 1.40 2,621 3.72 1.0834
2017-02-14 2016-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,508 412 2.73 2,527 15.86 1.1179
2016-11-09 2016-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 15,096 762 5.32 2,181 5.11 0.9255
2016-08-04 2016-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 14,334 3,989 38.56 2,075 41.35 0.9131
2016-05-10 2016-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 10,345 471 4.77 1,468 12.58 0.7118
2016-02-11 2015-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 9,874 3,387 52.21 1,304 54.32 0.6491
2015-11-06 2015-09-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 6,487 88 1.38 845 -2.99 0.4804
2015-08-10 2015-06-30 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 6,399 607 10.48 871 4.19 0.4388
2015-05-07 2015-03-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 5,792 28 0.49 836 -3.35 0.4223
2015-02-13 2014-12-31 13F BERKSHIRE HATHAWAY COMMON STOCK 084670702 5,764 5,764 865 0.5201
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.