Berkshire Hathaway Inc.
DE ˙ XTRA
424,90 € ↑16,80 (4,12%)
2026-06-05
DEL PRIS
SecurityDE:BRYN / Berkshire Hathaway Inc.
InstitutionO'Brien Greene & Co. Inc
Latest Disclosed Ownership27,834 shares
Latest Disclosed Value $ 13,338,216
O'Brien Greene & Co. Inc reports 0.30% decrease in ownership of BRYN / Berkshire Hathaway Inc.

On May 6, 2026 - O'Brien Greene & Co. Inc filed a 13F-HR form disclosing ownership of 27,834 shares of Berkshire Hathaway Inc. (DE:BRYN) valued at $11,521,884 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 27,919 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.30% during the quarter. The current value of the position is $11,826,667 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)
2026-05-06 2026-03-31 13F Berkshire Hathaway Inc Cl B COM 084670702 27,834 -85 -0.30 13,338 -4.95 2.1282
2026-02-05 2025-12-31 13F Berkshire Hathaway Inc Cl B COM 084670702 27,919 -390 -1.38 14,034 -1.40 4.1662
2025-11-10 2025-09-30 13F Berkshire Hathaway Inc Cl B COM 084670702 28,309 -503 -1.75 14,232 1.69 4.3769
2025-08-06 2025-06-30 13F Berkshire Hathaway Inc Cl B COM 084670702 28,812 -760 -2.57 13,996 -11.13 4.5780
2025-05-12 2025-03-31 13F Berkshire Hathaway Inc Cl B COM 084670702 29,572 -1,328 -4.30 15,750 12.44 5.2835
2025-02-03 2024-12-31 13F Berkshire Hathaway Inc Cl B COM 084670702 30,900 -697 -2.21 14,007 -3.69 4.5475
2024-11-15 2024-09-30 13F Berkshire Hathaway Inc Cl B COM 084670702 31,597 -2,506 -7.35 14,543 4.82 4.5286
2024-08-12 2024-06-30 13F Berkshire Hathaway Inc Cl B COM 084670702 34,103 1,075 3.25 13,873 -0.12 4.3935
2024-05-02 2024-03-31 13F Berkshire Hathaway Inc Cl B COM 084670702 33,028 300 0.92 13,889 18.99 4.5666
2024-02-02 2023-12-31 13F Berkshire Hathaway Inc Cl B COM 084670702 32,728 -165 -0.50 11,673 1.30 4.1047
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 32,893 293 0.90 11,523 104,645.45 4.2148
2023-08-15 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC CL B COM 084670702 32,600 -743 -2.23 11 10.00 3.8643
2023-07-20 2023-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 96,601 63,258 33 3.8414
2023-05-03 2023-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 33,343 -76 -0.23 10 0.00 3.8568
2023-02-02 2022-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 33,419 -69,359 -67.48 10 -99.96 3.9149
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 102,778 69,269 206.72 27,444 199.97 3.6365
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 33,509 1,844 5.82 9,149 -18.13 3.4549
2022-05-18 2022-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 31,665 428 1.37 11,175 19.65 3.6894
2022-02-08 2021-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 31,237 1,015 3.36 9,340 13.23 3.0680
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 30,222 519 1.75 8,249 -0.07 3.0090
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 29,703 495 1.69 8,255 10.63 2.9468
2021-05-12 2021-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 29,208 1,044 3.71 7,462 14.26 2.9567
2021-02-04 2020-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 28,164 330 1.19 6,531 10.19 2.6867
2020-11-09 2020-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 27,834 -555 -1.95 5,927 16.95 2.8175
2020-08-10 2020-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 28,389 -870 -2.97 5,068 -5.27 2.6823
2020-05-07 2020-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 29,259 -512 -1.72 5,350 -20.66 3.5610
2020-02-05 2019-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 29,771 -2,145 -6.72 6,743 1.55 3.4243
2019-11-07 2019-09-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 31,916 -307 -0.95 6,640 -3.33 3.5633
2019-08-21 2019-06-30 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 32,223 25 0.08 6,869 6.20 3.6005
2019-04-29 2019-03-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 32,198 1,475 4.80 6,468 3.09 3.2641
2019-02-27 2018-12-31 13F BERKSHIRE HATHAWAY INC CL B COM 084670702 30,723 30,723 6,274 3.7383
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.