Berkshire Hathaway Inc.
DE ˙ XTRA
410,90 € ↑5,35 (1,32%)
2026-06-03
DEL PRIS
SecurityDE:BRYN / Berkshire Hathaway Inc.
InstitutionOssiam
Latest Disclosed Ownership718,008 shares
Latest Disclosed Value $ 344,069,434
Ossiam reports 25.81% decrease in ownership of BRYN / Berkshire Hathaway Inc.

On May 14, 2026 - Ossiam filed a 13F-HR form disclosing ownership of 718,008 shares of Berkshire Hathaway Inc. (DE:BRYN) valued at $297,219,412 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 967,816 shares of Berkshire Hathaway Inc.. This represents a change in shares of -25.81% during the quarter. The current value of the position is $295,029,487 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)
2026-05-14 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 718,008 -249,808 -25.81 344,069 -29.27 6.0519
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 967,816 171,262 21.50 486,473 21.48 9.7150
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 796,554 -33,291 -4.01 400,460 -0.66 5.1541
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 829,845 85,033 11.42 403,114 1.62 4.5335
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 744,812 -21,368 -2.79 396,672 14.22 5.5389
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 766,180 292,617 61.79 347,294 59.34 5.9956
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 473,563 -105,211 -18.18 217,962 -7.43 4.2133
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 578,774 -78,200 -11.90 235,445 -14.78 4.4623
2024-05-13 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 656,974 67,000 11.36 276,271 31.29 4.8390
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 589,974 0 0.00 210,420 1.82 3.3887
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 589,974 3,129 0.53 206,668 3.27 3.6519
2023-08-11 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 586,845 -34,163 -5.50 200,114 4.36 3.5953
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 621,008 271,778 77.82 191,749 77.75 3.9841
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 349,230 22,000 6.72 107,877 23.46 2.7964
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 327,230 -10,800 -3.19 87,377 -5.32 2.5306
2022-08-12 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 338,030 -125,320 -27.05 92,289 -43.56 2.7770
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 463,350 -35,581 -7.13 163,521 9.61 4.2784
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 498,931 59,865 13.63 149,180 24.48 3.9087
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 439,066 0 0.00 119,839 -1.92 3.3916
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 439,066 -162,368 -27.00 122,188 -20.48 3.3157
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 601,434 459,686 324.30 153,648 367.48 4.7833
2021-02-12 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 141,748 -221,988 -61.03 32,867 -57.57 1.1470
2020-11-12 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 363,736 219,618 152.39 77,454 201.06 3.2421
2020-08-13 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 144,118 14,664 11.33 25,727 8.70 1.6448
2020-05-14 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 129,454 81,252 168.57 23,668 116.78 1.6110
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 48,202 31,436 187.50 10,918 213.02 0.8325
2019-11-13 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,766 -3,975 -19.16 3,488 -21.10 0.2433
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,741 -71,104 -77.42 4,421 -76.04 0.3441
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 91,845 80,345 698.65 18,451 685.82 1.5227
2019-02-14 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 11,500 11,500 2,348 0.3530
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.