Berkshire Hathaway Inc.
DE ˙ XTRA
424,90 € ↑16,80 (4,12%)
2026-06-05
DEL PRIS
SecurityDE:BRYN / Berkshire Hathaway Inc.
InstitutionTranquilli Financial Advisor LLC
Latest Disclosed Ownership3,892 shares
Latest Disclosed Value $ 1,865,046
Tranquilli Financial Advisor LLC reports 3.32% increase in ownership of BRYN / Berkshire Hathaway Inc.

On May 11, 2026 - Tranquilli Financial Advisor LLC filed a 13F-HR form disclosing ownership of 3,892 shares of Berkshire Hathaway Inc. (DE:BRYN) valued at $1,611,093 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 3,767 shares of Berkshire Hathaway Inc.. This represents a change in shares of 3.32% during the quarter. The current value of the position is $1,653,711 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)
2026-05-11 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,892 125 3.32 1,865 -1.48 1.0891
2026-01-27 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,767 12 0.32 1,893 0.32 1.0986
2025-10-30 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,755 -544 -12.65 1,888 -9.63 1.1152
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,299 112 2.67 2,088 -6.33 1.2928
2025-05-12 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,187 -899 -17.68 2,230 -3.30 1.4112
2025-01-27 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,086 -142 -2.72 2,305 -4.20 1.4603
2024-11-14 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,228 -84 -1.58 2,406 11.80 1.5089
2024-08-13 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,312 -12 -0.23 2,152 -3.84 1.4410
2024-05-13 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,324 -382 -6.69 2,239 9.98 1.4931
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,706 481 9.21 2,035 11.20 1.4370
2023-11-08 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,225 -173 -3.20 1,830 -0.54 1.3218
2023-07-27 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,398 172 3.29 1,841 14.07 1.3029
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,226 186 3.69 1,614 3.66 1.2065
2023-02-08 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,040 889 21.42 1,557 40.43 1.1817
2022-11-03 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,151 833 25.11 1,108 22.30 0.8780
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,318 134 4.21 906 -19.40 0.6942
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,184 -70 -2.15 1,124 15.52 0.7997
2022-02-10 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,254 -82 -2.46 973 6.81 0.6810
2021-11-10 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,336 50 1.52 911 -0.22 0.6825
2021-08-09 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,286 86 2.69 913 11.61 0.6855
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,200 409 14.65 818 26.43 0.6606
2021-02-25 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,791 2,791 647 0.5874
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.