Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionSelect Asset Management & Trust
Latest Disclosed Ownership6,468 shares
Latest Disclosed Value $ 3,099
Select Asset Management & Trust reports 2.93% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 14, 2026 - Select Asset Management & Trust filed a 13F-HR form disclosing ownership of 6,468 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $3,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 6,284 shares of Berkshire Hathaway Inc.. This represents a change in shares of 2.93% 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)
2026-05-14 2026-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 6,468 184 2.93 3 0.00 0.9678
2026-02-10 2025-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 6,284 -62 -0.98 3 0.00 0.9826
2025-10-30 2025-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 6,346 39 0.62 3 0.00 0.9822
2025-08-14 2025-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 6,307 -166 -2.56 3 0.00 1.0495
2025-05-12 2025-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 6,473 584 9.92 3 50.00 1.3815
2025-02-13 2024-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 5,889 439 8.06 3 0.00 1.0344
2024-11-14 2024-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 5,450 2 0.04 3 0.00 0.9237
2024-08-12 2024-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 5,448 -1,623 -22.95 2 0.00 0.8834
2024-05-14 2024-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,071 0 0.00 3 0.00 1.2358
2024-02-13 2023-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,071 0 0.00 3 0.00 1.2424
2023-11-13 2023-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,071 0 0.00 2 0.00 1.4386
2023-08-11 2023-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,071 -213 -2.92 2 0.00 1.4718
2023-05-12 2023-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,284 0 0.00 2 0.00 1.9830
2023-02-09 2022-12-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 7,284 -1,300 -15.14 2 -99.91 2.7043
2022-11-14 2022-09-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 8,584 0 0.00 2,292 -2.22 2.7316
2022-08-12 2022-06-30 13F Berkshire Hathaway Inc. Cl B COM 084670702 8,584 -2,608 -23.30 2,344 -40.66 2.5215
2022-05-13 2022-03-31 13F Berkshire Hathaway Inc. Cl B COM 084670702 11,192 -17,167 -60.53 3,950 -53.41 3.3755
2022-02-08 2021-12-31 13F Berkshire Hathaway Inc. C COM 084670702 28,359 -3,630 -11.35 8,479 -2.89 5.6098
2021-11-09 2021-09-30 13F Berkshire Hathaway Inc. C COM 084670702 31,989 0 0.00 8,731 -1.79 6.3017
2021-08-10 2021-06-30 13F Berkshire Hathaway Inc. C COM 084670702 31,989 -4,106 -11.38 8,890 -3.59 5.0485
2021-05-13 2021-03-31 13F Berkshire Hathaway Inc. C COM 084670702 36,095 2,570 7.67 9,221 18.63 6.1327
2021-02-12 2020-12-31 13F Berkshire Hathaway Inc. C COM 084670702 33,525 31,400 1,477.65 7,773 2,423.70 6.2034
2016-08-05 2016-06-30 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 308 9.61 0.7958
2016-05-11 2016-03-31 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 281 0.00 0.3660
2016-02-04 2015-12-31 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 281 1.44 0.3660
2015-10-28 2015-09-30 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 277 -4.15 0.4767
2015-08-03 2015-06-30 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 289 -5.86 0.2518
2015-04-21 2015-03-31 13F Berkshire Hathaway Inc. C COM 084670702 2,125 2,125 0.00 307 0.2376
2015-02-04 2014-12-31 13F Berkshire Hathaway Inc. C COM 084670702 0 -2,125 -100.00 0 -100.00
2014-11-06 2014-09-30 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 294 9.70 0.1979
2014-08-06 2014-06-30 13F/A-1 Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 268 0.75 0.2530
2014-08-06 2014-06-30 13F Berkshire Hathaway Inc. C COM 084670702 2,125 266
2014-05-08 2014-03-31 13F Berkshire Hathaway Inc. C COM 084670702 2,125 0 0.00 266 5.98 0.2492
2014-03-05 2013-12-31 13F Berkshire Hathaway Inc. C COM 084670702 2,125 2,125 251 0.2254
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.