Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionERn Financial, LLC
Latest Disclosed Ownership1,564 shares
Latest Disclosed Value $ 749,469
ERn Financial, LLC reports 1.51% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On April 24, 2026 - ERn Financial, LLC filed a 13F-HR form disclosing ownership of 1,564 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $749,469 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 1,588 shares of Berkshire Hathaway Inc.. This represents a change in shares of -1.51% 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)
2026-04-24 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,564 -24 -1.51 749 -6.14 0.1409
2026-01-15 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,588 69 4.54 798 4.59 0.1501
2025-10-30 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,519 -241 -13.69 764 -10.66 0.1508
2025-07-17 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,760 -3,012 -63.12 855 -66.39 0.1804
2025-04-21 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,772 -353 -6.89 2,541 9.43 0.4015
2025-01-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,125 113 2.25 2,323 0.69 0.3485
2024-10-15 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,012 140 2.87 2,307 16.41 0.3509
2024-07-18 2024-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,872 67 1.39 1,982 -1.93 0.3288
2024-07-17 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,872 67 1,982 0.3288
2024-04-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,805 36 0.75 2,020 16.90 0.3505
2024-01-19 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,769 7 0.15 1,728 3.60 0.3269
2023-11-06 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,762 95 2.04 1,668 4.84 0.3619
2023-08-10 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,667 -227 -4.64 1,591 5.29 0.3331
2023-05-10 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,894 1,014 26.13 1,511 26.13 0.3322
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,880 1,579 68.62 1,199 95.11 0.2732
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,301 311 15.63 614 13.08 0.1570
2022-08-02 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,990 47 2.42 543 -20.85 0.1324
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,943 2 0.10 686 18.28 0.1518
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,941 0 0.00 580 9.43 0.1294
2021-11-16 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,941 295 17.92 530 15.97 0.1358
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,646 22 1.35 457 10.12 0.1620
2021-04-12 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,624 86 5.59 415 16.25 0.1605
2021-02-24 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,538 -138 -8.23 357 0.00 0.1469
2020-11-12 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,676 365 27.84 357 52.56 0.1671
2020-08-13 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,311 122 10.26 234 7.83 0.1186
2020-05-11 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,189 -1,483 -55.50 217 -64.13 0.1428
2020-02-11 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,672 1,500 127.99 605 147.95 0.3517
2019-11-07 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,172 0 0.00 244 -2.40 0.1742
2019-08-12 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,172 -273 -18.89 250 -17.76 0.1882
2019-04-18 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,445 113 8.48 304 11.76 0.1833
2019-02-19 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,332 1,332 272 0.2440
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.