Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionArlington Partners LLC
Latest Disclosed Ownership497 shares
Latest Disclosed Value $ 238,162
Arlington Partners LLC ownership in BRKB / Berkshire Hathaway Inc.

On April 9, 2026 - Arlington Partners LLC filed a 13F-HR form disclosing ownership of 497 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $238,162 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 0 shares of Berkshire Hathaway Inc..

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)
2026-04-09 2026-03-31 13F Berkshire Hathaway Inc B COM 084670702 497 497 238 0.4753
2026-01-29 2025-12-31 13F Berkshire Hathaway Inc B COM 084670702 0 -13,471 -100.00 0 -100.00
2025-10-28 2025-09-30 13F Berkshire Hathaway Inc B COM 084670702 13,471 0 0.00 6,772 3.50 2.3401
2025-07-14 2025-06-30 13F Berkshire Hathaway Inc B COM 084670702 13,471 -1,000 -6.91 6,544 -15.09 2.4141
2025-04-23 2025-03-31 13F Berkshire Hathaway Inc B COM 084670702 14,471 0 0.00 7,707 17.49 3.0243
2025-01-29 2024-12-31 13F Berkshire Hathaway Inc B COM 084670702 14,471 0 0.00 6,559 -1.52 2.5466
2024-10-21 2024-09-30 13F Berkshire Hathaway Inc B COM 084670702 14,471 1,498 11.55 6,660 26.21 2.6053
2024-08-06 2024-06-30 13F/A-1 Berkshire Hathaway Inc B COM 084670702 12,973 0 0.00 5,277 -3.26 2.6204
2024-08-01 2024-06-30 13F Berkshire Hathaway Inc B COM 084670702 12,973 0 5,277 2.6204
2024-04-16 2024-03-31 13F Berkshire Hathaway Inc B COM 084670702 12,973 -3,790 -22.61 5,455 -8.75 2.7779
2024-01-24 2023-12-31 13F Berkshire Hathaway Inc B COM 084670702 16,763 16,763 5,979 1.7188
2023-10-24 2023-09-30 13F Berkshire Hathaway Inc B COM 084670702 0 -34,110 -100.00 0 -100.00
2023-07-26 2023-06-30 13F Berkshire Hathaway Inc B COM 084670702 34,110 1,448 4.43 11,632 15.33 1.7943
2023-04-26 2023-03-31 13F Berkshire Hathaway Inc B COM 084670702 32,662 705 2.21 10,085 2.17 1.4347
2023-01-24 2022-12-31 13F/A-1 Berkshire Hathaway Inc B COM 084670702 31,957 4 0.01 9,872 15.69 1.5649
2023-01-19 2022-12-31 13F Berkshire Hathaway Inc B COM 084670702 31,957 4 10 1.5650
2022-10-28 2022-09-30 13F Berkshire Hathaway Inc B COM 084670702 31,953 -9,207 -22.37 8,532 -24.08 3.4210
2022-07-25 2022-06-30 13F Berkshire Hathaway Inc B COM 084670702 41,160 9,111 28.43 11,238 -0.64 3.7292
2022-04-14 2022-03-31 13F Berkshire Hathaway Inc B COM 084670702 32,049 -8,100 -20.17 11,310 -5.79 3.1995
2022-01-18 2021-12-31 13F Berkshire Hathaway Inc B COM 084670702 40,149 -945 -2.30 12,005 7.03 3.2241
2021-10-15 2021-09-30 13F Berkshire Hathaway Inc B COM 084670702 41,094 2,492 6.46 11,216 4.55 3.2289
2021-07-07 2021-06-30 13F Berkshire Hathaway Inc B COM 084670702 38,602 -1,329 -3.33 10,728 5.17 3.7249
2021-04-19 2021-03-31 13F Berkshire Hathaway Inc B COM 084670702 39,931 512 1.30 10,201 11.61 3.7338
2021-01-13 2020-12-31 13F Berkshire Hathaway Inc B COM 084670702 39,419 225 0.57 9,140 9.51 4.2098
2020-10-15 2020-09-30 13F Berkshire Hathaway Inc B COM 084670702 39,194 1,051 2.76 8,346 22.57 4.5754
2020-07-13 2020-06-30 13F Berkshire Hathaway Inc B COM 084670702 38,143 5,112 15.48 6,809 12.75 3.8242
2020-04-13 2020-03-31 13F Berkshire Hathaway Inc B COM 084670702 33,031 16,866 104.34 6,039 64.95 3.1426
2020-01-16 2019-12-31 13F Berkshire Hathaway Inc B COM 084670702 16,165 3,917 31.98 3,661 43.68 2.2457
2019-10-18 2019-09-30 13F Berkshire Hathaway Inc B COM 084670702 12,248 -18,274 -59.87 2,548 -60.84 1.6178
2019-07-10 2019-06-30 13F Berkshire Hathaway Inc B COM 084670702 30,522 21,269 229.86 6,506 249.97 2.9126
2019-04-05 2019-03-31 13F Berkshire Hathaway Inc B COM 084670702 9,253 -8,885 -48.99 1,859 -49.80 1.3294
2019-01-10 2018-12-31 13F Berkshire Hathaway Inc B COM 084670702 18,138 780 4.49 3,703 -0.38 2.4082
2018-10-23 2018-09-30 13F Berkshire Hathaway Inc B COM 084670702 17,358 100 0.58 3,717 15.40 2.6172
2018-07-11 2018-06-30 13F Berkshire Hathaway Inc B COM 084670702 17,258 228 1.34 3,221 -5.18 3.0443
2018-05-07 2018-03-31 13F Berkshire Hathaway Inc B COM 084670702 17,030 683 4.18 3,397 4.85 3.2004
2018-01-29 2017-12-31 13F Berkshire Hathaway Inc B CL B NEW 084670702 16,347 16,347 3,240 3.3376
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.