Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionMcGowan Group Asset Management, Inc.
Latest Disclosed Ownership3,033 shares
Latest Disclosed Value $ 1,453,414
McGowan Group Asset Management, Inc. reports 5.51% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 11, 2026 - McGowan Group Asset Management, Inc. filed a 13F-HR form disclosing ownership of 3,033 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,453,414 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 3,210 shares of Berkshire Hathaway Inc.. This represents a change in shares of -5.51% 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)
2026-05-11 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,033 -177 -5.51 1,453 -9.92 0.1851
2026-01-29 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 3,210 3 0.09 1,614 0.06 0.2002
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 3,207 0 0.00 1,612 3.53 0.1999
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 3,207 22 0.69 1,558 -8.20 0.1963
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 3,185 16 0.50 1,696 18.11 0.2243
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 3,169 1,062 50.40 1,436 48.19 0.1923
2024-11-12 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,107 10 0.48 970 13.60 0.1278
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,097 2 0.10 853 -3.07 0.1188
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,095 -18 -0.85 881 16.87 0.1270
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,113 0 0.00 754 1.76 0.1211
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,113 -5 -0.24 740 2.49 0.1169
2023-08-10 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,118 0 0.00 722 10.57 0.1126
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,118 -23 -1.07 654 -1.21 0.1038
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,141 -33 -1.52 661 13.77 0.1053
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,174 0 0.00 581 -2.19 0.1008
2022-08-11 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,174 5 0.23 594 -22.35 0.0995
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,169 0 0.00 765 17.87 0.1176
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,169 0 0.00 649 9.63 0.1140
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,169 0 0.00 592 -1.82 0.1007
2021-08-11 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,169 0 0.00 603 8.84 0.0947
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,169 270 14.22 554 25.91 0.0904
2021-02-10 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,899 0 0.00 440 8.91 0.0752
2020-11-12 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,899 -45 -2.31 404 16.43 0.0766
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,944 50 2.64 347 0.29 0.0647
2020-05-18 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,894 -71 -3.61 346 -22.25 0.0758
2020-02-13 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,965 -11 -0.56 445 8.27 0.0757
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,976 0 0.00 411 -2.38 0.0661
2019-08-14 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,976 -225 -10.22 421 -4.75 0.0661
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,201 -34 -1.52 442 -3.07 0.0705
2019-02-14 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,235 0 0.00 456 -4.80 0.0820
2018-11-13 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,235 -9 -0.40 479 14.32 0.0797
2018-08-13 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,244 3 0.13 419 -6.26 0.0707
2018-05-14 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,241 0 0.00 447 0.68 0.0767
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,241 300 15.46 444 24.72 0.0715
2017-11-13 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,941 0 0.00 356 8.21 0.0694
2017-08-14 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,941 -36 -1.82 329 -0.30 0.0672
2017-05-15 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,977 0 0.00 330 2.48 0.0654
2017-02-13 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,977 0 0.00 322 12.59 0.0667
2016-11-10 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 1,977 -188 -8.68 286 -8.63 0.0558
2016-08-15 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,165 0 0.00 313 1.95 0.0558
2016-05-13 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,165 25 1.17 307 8.48 0.0590
2016-02-12 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,140 -380 -15.08 283 -13.98 0.0560
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,520 32 1.29 329 -2.95 0.0653
2015-08-12 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B COM 084670702 2,488 0 0.00 339 -5.57 0.0695
2015-05-14 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B CL B NEW 084670702 2,488 200 8.74 359 4.36 0.0726
2015-02-12 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,288 2,288 344 0.0691
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.