Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership23,509 shares
Latest Disclosed Value $ 11,265,512
Guggenheim Capital Llc reports 20.93% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 23,509 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $11,265,512 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 29,731 shares of Berkshire Hathaway Inc.. This represents a change in shares of -20.93% 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 23,509 -6,222 -20.93 11,266 -24.62 0.0435
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 29,731 76 0.26 14,944 0.24 0.0534
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 29,655 1,443 5.11 14,909 8.79 0.0766
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 28,212 1,941 7.39 13,705 -2.05 0.1088
2025-05-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 26,271 -7,477 -22.16 13,991 -8.54 0.1285
2025-02-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 33,748 -22,590 -40.10 15,297 -41.01 0.1240
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 56,338 -16,635 -22.80 25,930 -12.65 0.1815
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 72,973 -16,113 -18.09 29,685 -20.76 0.2105
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 89,086 7,001 8.53 37,462 27.96 0.2640
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 82,085 21,632 35.78 29,276 38.25 0.2212
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 60,453 -3,254 -5.11 21,177 -2.52 0.1821
2023-08-11 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 63,707 9,398 17.30 21,724 29.56 0.1705
2023-05-11 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 54,309 -4,958 -8.37 16,769 -8.41 0.1411
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 59,267 -50 -0.08 18,308 15.59 0.1608
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 59,317 -2,654 -4.28 15,838 -6.39 0.1451
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 61,971 -168,257 -73.08 16,919 -79.18 0.1336
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 230,228 -218,119 -48.65 81,250 -39.39 0.4887
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 448,347 354,847 379.52 134,056 425.32 0.6992
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,500 -6,942 -6.91 25,519 -8.58 0.1532
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 100,442 7,757 8.37 27,915 17.89 0.1643
2021-05-13 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,685 89 0.10 23,678 10.28 0.1554
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,596 14,323 18.30 21,471 28.82 0.1346
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 78,273 4,351 5.89 16,667 26.30 0.1206
2020-08-14 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 73,922 14,346 24.08 13,196 21.15 0.1021
2020-06-02 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 59,576 -27,752 -31.78 10,892 -44.93 0.1097
2020-02-20 2019-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 87,328 881 1.02 19,780 10.00 0.1486
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 87,328 881 19,780 117,232.1061
2020-02-20 2019-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 86,447 -16,756 -16.24 17,982 -18.26 0.1437
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 86,447 -16,756 17,982 131,777.3706
2019-08-14 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 103,203 2,206 2.18 22,000 8.43 0.1790
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 100,997 -4,478 -4.25 20,289 -5.79 0.1653
2019-02-14 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 105,475 -37,200 -26.07 21,535 -29.50 0.1825
2018-11-14 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 142,675 -3,213 -2.20 30,547 12.17 0.1991
2018-08-14 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 145,888 -377,292 -72.12 27,232 -73.91 0.1817
2018-05-15 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 523,180 -76,790 -12.80 104,363 -12.24 0.2546
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 599,970 19,993 3.45 118,924 11.85 0.2817
2017-11-14 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 579,977 -20,820 -3.47 106,321 4.49 0.2497
2017-08-14 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 600,797 -16,509 -2.67 101,756 -1.11 0.2695
2017-05-15 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 617,306 -19,137 -3.01 102,894 -0.80 0.2789
2017-02-14 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 636,443 192,071 43.22 103,729 61.57 0.2967
2016-11-14 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 444,372 31,041 7.51 64,200 7.28 0.1997
2016-08-15 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 413,331 -57,323 -12.18 59,846 -10.38 0.1880
2016-05-16 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 470,654 -49,870 -9.58 66,776 -2.84 0.2107
2016-02-16 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 520,524 26,903 5.45 68,730 6.78 0.2000
2015-11-16 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 493,621 -69,387 -12.32 64,369 -16.00 0.1981
2015-08-14 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 563,008 -19,318 -3.32 76,631 -8.82 0.1892
2015-05-18 2015-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 582,326 -31,455 -5.12 84,042 -8.81 0.1989
2015-05-15 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 582,326 84,042
2015-02-17 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 613,781 -42,077 -6.42 92,159 1.72 0.2312
2014-11-14 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 655,858 13,078 2.03 90,600 11.37 0.2185
2014-08-14 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 642,780 99,556 18.33 81,351 19.83 0.2058
2014-05-16 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 543,224 -4,043 -0.74 67,888 4.63 0.1931
2014-02-14 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 547,267 94,999 21.01 64,884 26.39 0.1972
2013-11-14 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 452,268 14,306 3.27 51,338 4.73 0.1843
2013-08-22 2013-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 437,962 437,962 49,018 0.2062
2013-08-14 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 412,054 48,880 0.2061
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.