Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership15,487,316 shares
Latest Disclosed Value $ 7,421,521,826
Northern Trust Corp reports 0.26% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 15,487,316 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $7,421,521,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,528,328 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.26% 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)
2026-05-14 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,487,316 -41,012 -0.26 7,421,522 -4.92 0.2012
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,528,328 -314,306 -1.98 7,805,314 -2.00 0.9951
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,842,634 -117,690 -0.74 7,964,726 2.73 1.0189
2025-08-13 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 15,960,324 -238,120 -1.47 7,753,047 -10.13 1.0662
2025-05-13 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,198,444 -269,141 -1.63 8,626,967 15.57 1.2808
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 16,467,585 1,144,541 7.47 7,464,427 5.84 1.0569
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 15,323,044 -359,866 -2.29 7,052,584 10.55 1.1545
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 15,682,910 -30,711 -0.20 6,379,808 -3.45 1.0750
2024-05-14 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 15,713,621 -599,113 -3.67 6,607,892 13.57 1.1417
2024-02-13 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 16,312,734 -457,248 -2.73 5,818,100 -0.96 1.0531
2023-11-13 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 16,769,982 631,661 3.91 5,874,525 6.75 1.1379
2023-08-11 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 16,138,321 -757,555 -4.48 5,503,167 5.49 1.0575
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 16,895,876 -112,622 -0.66 5,216,940 -0.70 1.0343
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 17,008,498 80,605 0.48 5,253,925 16.24 1.1026
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 16,927,893 -124,235 -0.73 4,520,087 -2.91 1.0325
2022-08-12 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 17,052,128 -105,828 -0.62 4,655,571 -23.11 0.9972
2022-05-13 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 17,157,956 -262,783 -1.51 6,055,214 16.25 1.0652
2022-02-08 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,420,739 -346,054 -1.95 5,208,800 7.41 0.8533
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 17,766,793 -692,069 -3.75 4,849,270 -5.47 0.8583
2021-08-13 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,458,862 -610,635 -3.20 5,130,089 5.30 0.9037
2021-05-12 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,069,497 -872,659 -4.38 4,871,684 5.36 0.9061
2021-02-11 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,942,156 -1,002,739 -4.79 4,623,988 3.68 0.9007
2020-11-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,944,895 260,489 1.26 4,460,006 20.79 0.9780
2020-08-14 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 20,684,406 464,818 2.30 3,692,373 -0.12 0.8748
2020-05-14 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,219,588 -199,151 -0.98 3,696,746 -20.07 1.0613
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,418,739 166,079 0.82 4,624,845 9.78 1.0351
2019-11-13 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 20,252,660 -447,564 -2.16 4,212,959 -4.53 1.0085
2019-08-13 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,700,224 92,215 0.45 4,412,668 6.59 1.0468
2019-05-13 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,608,009 260,763 1.28 4,139,943 -0.35 1.0225
2019-02-12 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,347,246 508,245 2.56 4,154,500 -2.19 1.1652
2018-11-14 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,839,001 -90,148 -0.45 4,247,729 14.19 1.0396
2018-09-18 2018-06-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,929,149 -34,069 -0.17 3,719,776 -6.59 0.9446
2018-08-14 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,090,512 127,294 3,749,894
2018-05-09 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,963,218 -393,772 -1.93 3,982,262 -1.31 1.0360
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,356,990 -549,421 -2.63 4,035,162 5.29 1.0219
2017-11-13 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 20,906,411 1,231,914 6.26 3,832,562 15.01 0.9989
2017-08-11 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 19,674,497 -305,905 -1.53 3,332,269 0.06 0.9318
2017-05-12 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 19,980,402 77,310 0.39 3,330,333 2.67 0.9603
2017-02-13 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 19,903,092 251,058 1.28 3,243,806 14.25 0.9949
2016-11-09 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 19,652,034 273,582 1.41 2,839,129 1.19 0.8843
2016-08-12 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,378,452 -51,184 -0.26 2,805,805 1.97 0.9108
2016-08-19 2016-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 19,429,636 6,172 0.03 2,751,714 7.29 0.9128
2016-05-13 2016-03-31 13F Berkshire Hathaway COMM 084670702 19,429,500 2,756,657
2016-02-12 2015-12-31 13F Berkshire Hathaway COMM 084670702 19,423,464 -1,197,158 -5.81 2,564,675 -4.62 0.8502
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 20,620,622 436,849 2.16 2,688,929 -2.12 0.8973
2015-08-13 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 20,183,773 -369,526 -1.80 2,747,213 -7.38 1.8623
2015-08-13 2015-06-30 13F Berkshire Hathaway COMM 008467070 451,613 -20,101,686 61,469 0.0417
2015-05-14 2015-03-31 13F Berkshire Hathaway COMM 084670702 20,553,299 -443,236 -2.11 2,966,253 -5.91 0.8921
2015-02-12 2014-12-31 13F Berkshire Hathaway COM 084670702 20,996,535 92,482 0.44 3,152,629 9.17 0.9518
2014-11-13 2014-09-30 13F Berkshire Hathaway COMM 084670702 20,904,053 -805,094 -3.71 2,887,686 5.10 0.9069
2014-08-14 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL com 084670702 21,709,147 753,132 3.59 2,747,510 4.91 0.8563
2014-05-14 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL COMM 084670702 20,956,015 -259,660 -1.22 2,618,873 4.12 0.8239
2014-02-21 2013-12-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL COM 084670702 21,215,675 61,585 0.29 2,515,331 4.75 0.8067
2014-02-12 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 21,215,675 2,515,331
2013-11-13 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 21,154,090 -878,449 -3.99 2,401,201 -2.62 0.8457
2013-08-09 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 22,032,539 22,032,539 2,465,882 0.8936
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.