Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionEldred Rock Partners, LLC
Latest Disclosed Ownership28,737 shares
Latest Disclosed Value $ 13,770,770
Eldred Rock Partners, LLC reports 2.01% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 8, 2026 - Eldred Rock Partners, LLC filed a 13F-HR form disclosing ownership of 28,737 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $13,770,770 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 28,171 shares of Berkshire Hathaway Inc.. This represents a change in shares of 2.01% 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)
2026-04-08 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,737 566 2.01 13,771 -2.75 3.5045
2026-01-16 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,171 -3,445 -10.90 14,160 -10.91 3.6736
2025-10-21 2025-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 31,616 3,397 12.04 15,895 15.96 3.9642
2025-10-16 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,219 0 13,708 4.1665
2025-07-09 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,219 -1,490 -5.02 13,708 -12.99 4.1665
2025-04-09 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 29,709 2,795 10.38 15,753 29.26 4.8100
2025-01-16 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,914 140 0.52 12,187 -1.10 4.1840
2024-10-04 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,774 1,103 4.30 12,323 18.01 4.1180
2024-07-12 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 25,671 1,042 4.23 10,443 0.83 4.3639
2024-04-11 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,629 252 1.03 10,357 19.12 5.6442
2024-01-11 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,377 24,377 8,694 5.5381
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.