Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership229,556 shares
Latest Disclosed Value $ 110,003,235
Macquarie Group Ltd reports 6.29% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 229,556 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $110,003,235 USD as of March 31, 2026.

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 229,556 13,578 6.29 110,003 1.33 0.5122
2026-02-13 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 215,978 -15,846 -6.84 108,561 -6.85 0.4745
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 231,824 -4,867 -2.06 116,547 1.36 0.1360
2025-08-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 236,691 -37,959 -13.82 114,978 -21.40 0.1410
2025-08-14 2025-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 274,650 44,966 19.58 146,273 103.43 0.1816
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 274,650 44,966 91,244 0.0745
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 229,684 -54,302 -19.12 71,904 -44.99 0.0872
2024-11-14 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 283,986 135,475 91.22 130,707 116.35 0.1411
2024-08-09 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 148,511 -136,619 -47.91 60,414 9.77 0.0693
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 285,130 2,670 0.95 55,038 -45.37 0.0624
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 282,460 13,481 5.01 100,742 150.66 0.1164
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 268,979 176,205 189.93 40,192 27.05 0.0505
2023-10-27 2023-06-30 13F/A-2 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,774 -23,735 -20.37 31,636 -12.06 0.0362
2023-10-12 2023-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,774 -23,735 31,636 0.0318
2023-08-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,774 -23,735 31,636 0.0321
2023-06-01 2023-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 116,509 1,736 1.51 35,975 1.47 0.0427
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 116,509 1,736 35,975 0.0330
2023-02-21 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 114,773 22,699 24.65 35,454 44.20 0.0419
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 92,074 541 0.59 24,586 -1.62 0.0302
2022-08-17 2022-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 91,533 735 0.81 24,991 -22.01 0.0281
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 91,533 735 24,991 0.0090
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 90,798 1,436 1.61 32,044 19.93 0.0244
2022-02-11 2021-12-31 13F BerkSHire Hathaway CL B NEW 084670702 89,362 -136,441 -60.42 26,719 -56.65 0.0223
2021-11-12 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 225,803 -42,069 -15.70 61,631 -17.21 0.0525
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 267,872 195,127 268.23 74,447 300.60 0.0611
2021-05-14 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 72,745 2,909 4.17 18,584 14.77 0.0263
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 69,836 2,154 3.18 16,193 12.36 0.0236
2020-11-13 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 67,682 -21,940 -24.48 14,412 -9.91 0.0244
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 89,622 11,891 15.30 15,998 12.57 0.0275
2020-05-15 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 77,731 1,282 1.68 14,211 -17.93 0.0292
2020-03-18 2019-12-31 13F/A-2 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 76,449 858 1.14 17,316 10.12 0.0247
2020-02-28 2019-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 76,449 0 17,316 0.0250
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 76,449 858 17,316 21,730.1125
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 75,591 1,822 2.47 15,725 0.00 0.0264
2019-11-06 2019-06-30 13F/A-2 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 73,769 3,469 4.93 15,725 11.34 0.0265
2019-09-24 2019-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 73,769 0 15,725 0.0267
2019-08-14 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 73,769 3,469 15,725
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 70,300 -73,108 -50.98 14,123 -51.77 0.0241
2019-02-15 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 143,408 89,407 165.57 29,281 153.25 0.0566
2018-11-15 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 54,001 -2,100 -3.74 11,562 10.42 0.0188
2019-03-21 2018-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 56,101 -686 -1.21 10,471 -7.57 0.0181
2018-08-14 2018-06-30 13F BIOMARIN PHARMACEUTICAL COM 084670702 56,101 -686 10,471
2018-05-11 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 56,787 -1,723 -2.94 11,329 14.98 0.0206
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,510 -1,800 -2.98 9,853 -10.88 0.0174
2017-11-08 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 60,310 -500 -0.82 11,056 7.35 0.0198
2017-08-14 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 60,810 5,021 9.00 10,299 10.75 0.0188
2017-05-15 2017-03-31 13F Berkshire Hathaway CL B NEW 084670702 55,789 -5,938 -9.62 9,299 -7.56 0.0169
2017-03-30 2016-12-31 13F/A-1 Berkshire Hathaway COMMON 084670702 61,727 27,527 80.49 10,060 103.60 0.0193
2017-02-15 2016-12-31 13F Berkshire Hathaway Common Stock 084670702 61,727 10,060
2016-11-15 2016-09-30 13F Berkshire Hathaway Common Stock 084670702 34,200 3,875 12.78 4,941 12.53 0.0095
2016-09-14 2016-06-30 13F/A-1 Berkshire Hathaway Common Stock 084670702 30,325 2,625 9.48 4,391 11.73 0.0086
2016-08-15 2016-06-30 13F Berkshire Hathaway Common Stock 084670702 30,325 4,391
2016-05-16 2016-03-31 13F Berkshire Hathaway Common Stock 084670702 27,700 1,700 6.54 3,930 14.48 0.0079
2016-02-16 2015-12-31 13F Berkshire Hathaway Common Stock 084670702 26,000 0 0.00 3,433 1.27 0.0070
2015-11-16 2015-09-30 13F Berkshire Hathaway Common Stock 084670702 26,000 0 0.00 3,390 -4.21 0.0073
2015-08-21 2015-06-30 13F/A-1 Berkshire Hathaway Common Stock 084670702 26,000 -10 -0.04 3,539 -5.70 0.0070
2015-08-14 2015-06-30 13F Berkshire Hathaway Common Stock 084670702 26,000 3,539
2015-05-18 2015-03-31 13F Berkshire Hathaway Common Stock 084670702 26,010 1,610 6.60 3,753 2.43 0.0074
2015-02-17 2014-12-31 13F Berkshire Hathaway Common Stock 084670702 24,400 1,600 7.02 3,664 16.32 0.0076
2014-11-14 2014-09-30 13F Berkshire Hathaway Common Stock 084670702 22,800 0 0.00 3,150 9.15 0.0068
2014-08-14 2014-06-30 13F Berkshire Hathaway Common 084670702 22,800 -3,600 -13.64 2,886 -12.52 0.0064
2014-05-15 2014-03-31 13F Berkshire Hathaway Common Stock 084670702 26,400 -5,500 -17.24 3,299 -12.77 0.0057
2014-02-14 2013-12-31 13F Berkshire Hathaway Common Stock 084670702 31,900 -5,878 -15.56 3,782 -11.80 0.0068
2013-11-14 2013-09-30 13F Berkshire Hathaway Common Stock 084670702 37,778 3,351 9.73 4,288 11.29 0.0084
2013-08-16 2013-06-30 13F/A-1 Berkshire Hathaway Common Stock 084670702 34,427 34,427 3,853 0.0084
2013-08-14 2013-06-30 13F Berkshire Hathaway Common Stock 084670702 34,427 3,853 0.0084
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.