Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionLaffer Investments
Latest Disclosed Ownership2,434 shares
Latest Disclosed Value $ 1,166,373
Laffer Investments reports 424.57% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Laffer Investments filed a 13F-HR form disclosing ownership of 2,434 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,166,373 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 464 shares of Berkshire Hathaway Inc.. This represents a change in shares of 424.57% 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)
2026-05-13 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,434 1,970 424.57 1,166 400.43 0.1722
2026-02-12 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 464 -25 -5.11 233 -4.90 0.0354
2025-11-12 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 489 32 7.00 246 10.86 0.0389
2025-08-07 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 457 -164 -26.41 222 -33.03 0.0396
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 621 621 331 0.0704
2024-11-04 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 0 -358 -100.00 0 -100.00
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 358 184 105.75 146 98.63 0.0314
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 174 0 0.00 73 17.74 0.0189
2024-02-08 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 174 -179 -50.71 62 -49.59 0.0165
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 353 -5,403 -93.87 124 -93.73 0.0364
2023-08-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 5,756 1,541 36.56 1,963 50.81 0.5207
2023-05-09 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 4,215 1,107 35.62 1,301 35.52 0.3526
2023-02-10 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B COMMON STOCKS 084670702 3,108 375 13.72 960 31.69 0.2763
2022-11-10 2022-09-30 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 2,733 392 16.74 730 14.08 0.2682
2022-08-15 2022-06-30 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 2,341 749 47.05 639 13.90 0.2244
2022-05-13 2022-03-31 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 1,592 1,582 15,820.00 562 27,950.00 0.1693
2022-02-11 2021-12-31 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 10 -402 -97.57 3 -98.21 0.0009
2021-11-16 2021-09-30 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 412 10 2.49 112 0.90 0.0325
2021-08-16 2021-06-30 13F berkshire hathaway inc cl b COMMON STOCKS 084670702 402 -1,607 -79.99 112 -78.36 0.0419
2021-05-17 2021-03-31 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 2,009 0 0.00 513 11.28 0.1943
2021-06-11 2020-12-31 13F/A-1 Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 2,009 0 0.00 461 7.96 0.1946
2021-06-11 2020-09-30 13F/A-1 Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 2,009 1,607 399.75 428 501.41 0.2139
2020-11-13 2020-09-30 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 2,016 1,614 429 0.2095
2021-06-11 2020-06-30 13F/A-1 Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 402 -55 -12.04 72 -14.46 0.0412
2020-04-28 2020-03-31 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 457 140 44.16 84 16.90 0.0652
2020-02-20 2019-12-31 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 317 317 72 0.0478
2016-08-15 2016-06-30 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 0 -53,256 -100.00 0 -100.00
2016-05-17 2016-03-31 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 53,256 7,556 7.45 2.0441
2016-02-16 2015-12-31 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 7,032 1.25 1.9001
2015-11-06 2015-09-30 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 6,945 -4.19 1.8376
2015-08-14 2015-06-30 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 53,256 7,249 181,100.00 1.7588
2013-11-14 2013-09-30 13F Berkshire Hathaway Inc Cl B COMMON STOCKS 084670702 4 0.0008
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.