Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionGiverny Capital Inc.
ManagerFrancois Rochon
Latest Disclosed Ownership378,625 shares
Latest Disclosed Value $ 181,437,100
Giverny Capital Inc. reports 25.17% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Giverny Capital Inc. filed a 13F-HR form disclosing ownership of 378,625 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $181,437,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 505,984 shares of Berkshire Hathaway Inc.. This represents a change in shares of -25.17% 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)
2026-05-15 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 378,625 -127,359 -25.17 181,437 -28.66 6.6428
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 505,984 -4,660 -0.91 254,333 -0.93 8.4841
2025-11-17 2025-09-30 13F/A-2 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 510,644 -1,140 -0.22 256,721 3.26 8.6990
2025-11-14 2025-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 510,644 -1,140 256,721 8.1876
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 510,644 -1,140 256,721 7.8717
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 511,784 8,452 1.68 248,609 -7.26 8.5263
2025-08-12 2025-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 503,332 -2,218 -0.44 268,065 16.98 9.8820
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 503,332 -2,218 268,065 9.8814
2025-08-12 2024-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 505,550 16,239 3.32 229,156 1.75 8.3757
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 505,550 16,239 229,156 8.3753
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 489,311 4,841 1.00 225,210 14.27 8.5619
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 484,470 4,495 0.94 197,082 -2.36 8.3273
2024-05-13 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 479,975 -3,881 -0.80 201,839 16.96 8.2076
2024-02-09 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 483,856 7,566 1.59 172,572 3.43 8.1111
2024-01-25 2023-09-30 13F/A-1 BERKSHIREHATHAWAYINCDEL CLBNEW 084670702 476,290 6,097 1.30 166,844 4.06 9.0565
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 476,290 6,097 166,844 9.0623
2023-08-07 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 470,193 25,223 5.67 160,336 16.70 8.4357
2023-05-12 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 444,970 -16,434 -3.56 137,393 -3.60 8.2764
2023-05-17 2022-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 461,404 -1,403 -0.30 142,528 15.33 8.8105
2023-02-10 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 461,404 -1,403 143 8.8106
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 462,807 5,105 1.12 123,579 -1.11 8.3700
2022-08-12 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 457,702 19,796 4.52 124,962 -19.14 8.2335
2022-05-12 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 437,906 -116,682 -21.04 154,541 -6.80 8.7237
2022-02-11 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 554,588 -192,956 -25.81 165,822 -18.73 8.8460
2021-11-15 2021-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 747,544 11,800 1.60 204,035 -0.22 12.1655
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 747,544 11,800 204,035 12.0397
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 735,744 30,025 4.25 204,478 13.42 12.4365
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 705,719 15,402 2.23 180,290 12.64 12.0589
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 690,317 16,160 2.40 160,064 11.50 12.2766
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 674,157 -170,289 -20.17 143,555 -4.77 13.1641
2020-08-07 2020-06-30 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 844,446 13,627 1.64 150,742 -0.76 14.9896
2020-05-15 2020-03-31 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 830,819 -59,955 -6.73 151,899 -24.71 19.3455
2020-02-07 2019-12-31 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 890,774 19,806 2.27 201,760 11.36 18.2583
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 870,968 6,525 0.75 181,179 -1.68 18.0608
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY-B- CL B NEW 084670702 864,443 32,318 3.88 184,273 10.23 18.6141
2019-05-14 2019-03-31 13F BERKSHIRE HATHAWAY-B- CL B 084670702 832,125 24,107 2.98 167,166 1.32 19.1760
2019-02-13 2018-12-31 13F BERKSHIRE HATHAWAY-B- CL B 084670702 808,018 -4,518 -0.56 164,981 -5.17 21.7455
2018-11-13 2018-09-30 13F BERKSHIRE HATHAWAY-B- CL B 084670702 812,536 51,106 6.71 173,972 22.41 19.6993
2018-08-13 2018-06-30 13F/A-1 BERKSHIRE HATHAWAY-B- CL B 084670702 761,430 21,802 2.95 142,121 -3.67 18.4847
2018-08-13 2018-06-30 13F BERKSHIRE HATHAWAY-B- CL B 084670702 877,758 138,130 163,834
2018-05-11 2018-03-31 13F BERKSHIRE HATHAWAY-B- CL B 084670702 739,628 23,412 3.27 147,541 3.93 19.7544
2018-02-13 2017-12-31 13F BERKSHIRE HATHAWAY-B- CL B 084670702 716,216 8,612 1.22 141,968 9.44 19.4767
2017-11-13 2017-09-30 13F BERKSHIRE HATHAWAY-B- CL B 084670702 707,604 16,243 2.35 129,718 10.78 18.9526
2017-08-04 2017-06-30 13F BERKSHIRE HATHAWAY CL B 084670702 691,361 15,312 2.26 117,096 3.92 18.9283
2017-05-11 2017-03-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 676,049 13,420 2.03 112,684 4.34 18.7146
2017-02-10 2016-12-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 662,629 4,449 0.68 107,995 13.57 18.2678
2016-11-08 2016-09-30 13F BERKSHIRE HATHAWAY CL B NEW 084670702 658,180 11,823 1.83 95,087 1.60 17.6911
2016-08-11 2016-06-30 13F BERKSHIRE HATHAWAY CL B NEW 084670702 646,357 17,295 2.75 93,586 4.86 18.1639
2016-05-11 2016-03-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 629,062 24,014 3.97 89,251 11.72 17.5503
2016-02-11 2015-12-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 605,048 16,575 2.82 79,891 4.11 15.9030
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY CL B NEW 084670702 588,473 66,300 12.70 76,737 7.97 15.4330
2015-08-12 2015-06-30 13F BERKSHIRE HATHAWAY CL B NEW 084670702 522,173 28,099 5.69 71,073 -0.32 14.2061
2015-05-12 2015-03-31 13F BERKSHIRE HATHAWAY CL B NEW 084670702 494,074 494,074 71,304 15.6122
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.