Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionKeeler THomas Management LLC
Latest Disclosed Ownership4,797 shares
Latest Disclosed Value $ 2,298,722
Keeler THomas Management LLC reports 4.92% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 12, 2026 - Keeler THomas Management LLC filed a 13F-HR form disclosing ownership of 4,797 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,298,722 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 5,045 shares of Berkshire Hathaway Inc.. This represents a change in shares of -4.92% 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)
2026-05-12 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,797 -248 -4.92 2,299 -9.35 0.9729
2026-02-12 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,045 -378 -6.97 2,536 -7.01 1.2085
2025-11-04 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,423 -153 -2.74 2,726 0.66 1.1126
2025-07-31 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 5,576 -9,852 -63.86 2,709 -67.04 1.1657
2025-05-09 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,428 -6,206 -28.69 8,217 -16.21 4.0259
2025-02-04 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,634 -102 -0.47 9,806 -1.98 3.4947
2024-10-17 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 21,736 -551 -2.47 10,004 10.35 3.1638
2024-07-23 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 22,287 -916 -3.95 9,066 -6.28 3.0894
2024-05-07 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,203 -598 -2.51 9,674 13.97 3.3169
2024-02-01 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 23,801 -1,124 -4.51 8,489 -2.63 3.3481
2023-10-26 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 24,925 -1,956 -7.28 8,717 -4.90 3.2248
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,881 -389 -1.43 9,166 8.86 3.7023
2023-05-02 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 27,270 -9,603 -26.04 8,420 -26.08 3.9573
2023-01-20 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,873 -675 -1.80 11,390 13.60 5.7406
2022-10-24 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,548 643 1.74 10,026 -0.50 5.0923
2022-07-29 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,905 1,290 3.62 10,076 -19.81 4.9896
2022-04-28 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 35,615 -605 -1.67 12,565 16.03 6.0327
2022-01-24 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,220 -485 -1.32 10,829 8.17 4.6870
2021-10-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,705 316 0.87 10,011 -1.01 4.7662
2021-07-27 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,389 -889 -2.38 10,113 6.20 4.9444
2021-04-23 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,278 -897 -2.35 9,523 7.59 5.0149
2021-01-26 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,175 -6,200 -13.97 8,851 -6.26 4.9820
2020-11-02 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,375 -2,100 -4.52 9,442 13.25 5.9499
2020-07-17 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 46,475 5,912 14.57 8,337 12.42 6.0227
2020-04-17 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 40,563 -170 -0.42 7,416 -19.62 8.6780
2020-01-21 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 40,733 -370 -0.90 9,226 7.91 6.5812
2019-11-04 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,103 -475 -1.14 8,550 -3.53 6.5716
2019-07-31 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,578 800 1.96 8,863 8.20 7.0671
2019-04-30 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 40,778 2,835 7.47 8,191 5.73 6.8757
2019-01-24 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 37,943 -965 -2.48 7,747 -7.00 8.9547
2018-11-08 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,908 681 1.78 8,330 16.75 6.9424
2018-08-02 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 38,227 3,225 9.21 7,135 2.19 6.6118
2018-05-07 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 35,002 -1,737 -4.73 6,982 -4.12 6.9311
2018-02-07 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 36,739 36,739 7,282 6.6904
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.