Berkshire Hathaway Inc.
DE ˙ XTRA
408,10 € ↓ -2,80 (-0,68%)
2026-06-04
DEL PRIS
SecurityDE:BRYN / Berkshire Hathaway Inc.
InstitutionS.A. Mason LLC
Latest Disclosed Ownership3,407 shares
Latest Disclosed Value $ 1,632,634
S.A. Mason LLC reports 0.59% increase in ownership of BRYN / Berkshire Hathaway Inc.

On April 27, 2026 - S.A. Mason LLC filed a 13F-HR form disclosing ownership of 3,407 shares of Berkshire Hathaway Inc. (DE:BRYN) valued at $1,410,328 USD as of March 31, 2026. The current value of the position is $1,390,397 USD.

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)
2026-04-27 2026-03-31 13F Berkshire Hathaway COM 084670702 3,407 20 0.59 1,633 -4.11 0.6129
2026-01-29 2025-12-31 13F Berkshire Hathaway COM 084670702 3,387 -21 -0.62 1,702 -0.64 0.6731
2025-10-14 2025-09-30 13F Berkshire Hathaway COM 084670702 3,408 0 0.00 1,713 3.50 0.7562
2025-07-14 2025-06-30 13F Berkshire Hathaway COM 084670702 3,408 -210 -5.80 1,656 -14.07 0.8011
2025-04-23 2025-03-31 13F Berkshire Hathaway COM 084670702 3,618 65 1.83 1,927 19.63 1.0180
2025-01-24 2024-12-31 13F Berkshire Hathaway COM 084670702 3,553 15 0.42 1,611 -1.11 0.8459
2024-10-25 2024-09-30 13F Berkshire Hathaway COM 084670702 3,538 0 0.00 1,628 13.13 0.8633
2024-07-10 2024-06-30 13F Berkshire Hathaway COM 084670702 3,538 0 0.00 1,439 -3.23 0.8184
2024-04-15 2024-03-31 13F Berkshire Hathaway COM 084670702 3,538 0 0.00 1,488 17.92 0.8943
2024-01-17 2023-12-31 13F Berkshire Hathaway COM 084670702 3,538 -26 -0.73 1,262 1.04 0.8462
2023-10-13 2023-09-30 13F Berkshire Hathaway COM 084670702 3,564 0 0.00 1,248 13.45 0.9002
2023-07-20 2023-06-30 13F Berkshire Hathaway COM 084670702 3,564 0 0.00 1,100 0.00 0.7992
2023-05-10 2023-03-31 13F Berkshire Hathaway COM 084670702 3,564 110 3.18 1,100 3.19 0.7992
2023-01-10 2022-12-31 13F Berkshire Hathaway COM 084670702 3,454 -2 -0.06 1,067 15.49 0.8035
2022-10-20 2022-09-30 13F Berkshire Hathaway COM 084670702 3,456 -63 -1.79 923 -3.95 0.7301
2022-07-07 2022-06-30 13F Berkshire Hathaway COM 084670702 3,519 0 0.00 961 -22.62 0.7019
2022-05-12 2022-03-31 13F Berkshire Hathaway COM 084670702 3,519 0 0.00 1,242 18.06 0.7746
2022-01-04 2021-12-31 13F Berkshire Hathaway COM 084670702 3,519 0 0.00 1,052 9.58 0.6332
2021-10-12 2021-09-30 13F Berkshire Hathaway COM 084670702 3,519 0 0.00 960 -1.84 0.6321
2021-07-07 2021-06-30 13F Berkshire Hathaway COM 084670702 3,519 44 1.27 978 10.14 0.6727
2021-04-20 2021-03-31 13F Berkshire Hathaway COM 084670702 3,475 215 6.60 888 17.46 0.6634
2021-02-02 2020-12-31 13F Berkshire Hathaway COM 084670702 3,260 96 3.03 756 12.33 0.6294
2020-10-21 2020-09-30 13F Berkshire Hathaway COM 084670702 3,164 3,164 673 0.6402
2020-07-27 2020-06-30 13F Berkshire Hathaway COM 084670702 0 -3,408 -100.00 0 -100.00
2020-05-14 2020-03-31 13F Berkshire Hathaway COM 084670702 3,408 134 4.09 623 -15.92 0.7563
2020-01-29 2019-12-31 13F Berkshire Hathaway COM 084670702 3,274 3,274 741 0.7061
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.