Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionMonetary Management Group Inc
Latest Disclosed Ownership4,338 shares
Latest Disclosed Value $ 2,078,770
Monetary Management Group Inc ownership in BRKB / Berkshire Hathaway Inc.

On May 13, 2026 - Monetary Management Group Inc filed a 13F-HR form disclosing ownership of 4,338 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,078,770 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 4,338 shares of Berkshire Hathaway Inc.. This represents a change in shares of 0.00% 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)
2026-05-13 2026-03-31 13F Berkshire Hathaway Class B COM 084670702 4,338 0 0.00 2,079 -4.68 0.4965
2026-02-11 2025-12-31 13F Berkshire Hathaway Class B COM 084670702 4,338 -50 -1.14 2,180 -1.18 0.5042
2025-11-12 2025-09-30 13F Berkshire Hathaway Class B COM 084670702 4,388 -505 -10.32 2,206 -7.15 0.5065
2025-08-14 2025-06-30 13F Berkshire Hathaway Class B COM 084670702 4,893 155 3.27 2,377 -5.83 0.5850
2025-05-14 2025-03-31 13F Berkshire Hathaway Class B COM 084670702 4,738 150 3.27 2,523 21.36 0.6819
2025-02-13 2024-12-31 13F Berkshire Hathaway Class B COM 084670702 4,588 -15 -0.33 2,080 -1.84 0.5404
2024-11-13 2024-09-30 13F Berkshire Hathaway Class B COM 084670702 4,603 0 0.00 2,119 13.14 0.5445
2024-07-16 2024-06-30 13F Berkshire Hathaway Class B COM 084670702 4,603 90 1.99 1,872 -1.32 0.4950
2024-05-13 2024-03-31 13F Berkshire Hathaway Class B COM 084670702 4,513 -25 -0.55 1,898 17.24 0.5287
2024-02-14 2023-12-31 13F Berkshire Hathaway Class B COM 084670702 4,538 0 0.00 1,619 1.83 0.5048
2023-11-09 2023-09-30 13F Berkshire Hathaway Class B COM 084670702 4,538 0 0.00 1,590 2.71 0.5299
2023-08-11 2023-06-30 13F Berkshire Hathaway Class B COM 084670702 4,538 0 0.00 1,547 10.42 0.4742
2023-05-11 2023-03-31 13F Berkshire Hathaway Class B COM 084670702 4,538 50 1.11 1,401 1.08 0.4123
2023-02-13 2022-12-31 13F Berkshire Hathaway Class B COM 084670702 4,488 -100 -2.18 1,386 13.14 0.4329
2022-11-14 2022-09-30 13F Berkshire Hathaway Class B COM 084670702 4,588 0 0.00 1,225 -2.23 0.4037
2022-08-11 2022-06-30 13F Berkshire Hathaway Class B COM 084670702 4,588 -50 -1.08 1,253 -23.46 0.3928
2022-05-12 2022-03-31 13F Berkshire Hathaway Class B COM 084670702 4,638 0 0.00 1,637 18.02 0.4336
2022-02-14 2021-12-31 13F Berkshire Hathaway Class B COM 084670702 4,638 80 1.76 1,387 11.50 0.3431
2021-11-12 2021-09-30 13F Berkshire Hathaway Class B COM 084670702 4,558 50 1.11 1,244 -0.72 0.3421
2021-08-12 2021-06-30 13F Berkshire Hathaway Class B COM 084670702 4,508 -50 -1.10 1,253 7.65 0.3776
2021-05-17 2021-03-31 13F Berkshire Hathaway Class B COM 084670702 4,558 -325 -6.66 1,164 2.83 0.3661
2021-02-12 2020-12-31 13F Berkshire Hathaway Class B COM 084670702 4,883 125 2.63 1,132 11.75 0.3730
2020-11-12 2020-09-30 13F Berkshire Hathaway Class B COM 084670702 4,758 1,875 65.04 1,013 96.70 0.3609
2020-08-13 2020-06-30 13F Berkshire Hathaway Class B COM 084670702 2,883 -75 -2.54 515 -4.81 0.1946
2020-05-14 2020-03-31 13F Berkshire Hathaway Class B COM 084670702 2,958 0 0.00 541 -19.25 0.2394
2020-02-13 2019-12-31 13F Berkshire Hathaway Class B COM 084670702 2,958 0 0.00 670 8.94 0.2449
2019-11-12 2019-09-30 13F Berkshire Hathaway Class B COM 084670702 2,958 -5,420 -64.69 615 -65.57 0.2328
2019-08-13 2019-06-30 13F Berkshire Hathaway Class B COM 084670702 8,378 3,405 68.47 1,786 78.78 0.6859
2019-05-14 2019-03-31 13F Berkshire Hathaway Class B COM 084670702 4,973 2,771 125.84 999 122.00 0.3955
2019-02-13 2018-12-31 13F Berkshire Hathaway Class B COM 084670702 2,202 -48 -2.13 450 -6.64 0.2033
2018-11-13 2018-09-30 13F Berkshire Hathaway Class B COM 084670702 2,250 0 0.00 482 14.76 0.1841
2018-08-13 2018-06-30 13F Berkshire Hathaway Class B COM 084670702 2,250 0 0.00 420 -6.46 0.1713
2018-05-14 2018-03-31 13F Berkshire Hathaway Class B COM 084670702 2,250 0 0.00 449 0.67 0.1861
2018-02-14 2017-12-31 13F Berkshire Hathaway Class B COM 084670702 2,250 0 0.00 446 8.25 0.1797
2017-11-13 2017-09-30 13F Berkshire Hathaway Class B COM 084670702 2,250 100 4.65 412 13.19 0.1737
2017-08-14 2017-06-30 13F Berkshire Hathaway Class B COM 084670702 2,150 0 0.00 364 1.68 0.1488
2017-05-15 2017-03-31 13F Berkshire Hathaway Class B COM 084670702 2,150 1,250 138.89 358 143.54 0.1557
2017-02-13 2016-12-31 13F Berkshire Hathaway Class B COM 084670702 900 0 0.00 147 13.08 0.0679
2016-11-10 2016-09-30 13F Berkshire Hathaway Class B COM 084670702 900 -1,250 -58.14 130 -58.20 0.0601
2016-08-12 2016-06-30 13F Berkshire Hathaway Class B COM 084670702 2,150 0 0.00 311 1.97 0.1447
2016-05-11 2016-03-31 13F Berkshire Hathaway Class B COM 084670702 2,150 0 0.00 305 7.39 0.1483
2016-02-11 2015-12-31 13F Berkshire Hathaway Class B COM 084670702 2,150 -150 -6.52 284 -5.33 0.1360
2015-11-25 2015-09-30 13F Berkshire Hathaway Class B COM 084670702 2,300 0 0.00 300 -4.15 0.1501
2015-08-11 2015-06-30 13F Berkshire Hathaway Class B COM 084670702 2,300 0 0.00 313 -5.72 0.1412
2015-05-12 2015-03-31 13F Berkshire Hathaway Class B COM 084670702 2,300 -100 -4.17 332 -7.78 0.1465
2015-02-12 2014-12-31 13F Berkshire Hathaway Class B COM 084670702 2,400 0 0.00 360 8.43 0.1599
2014-11-06 2014-09-30 13F Berkshire Hathaway Class B COM 084670702 2,400 0 0.00 332 9.21 0.1539
2014-08-12 2014-06-30 13F Berkshire Hathaway Class B COM 084670702 2,400 650 37.14 304 38.81 0.1422
2014-05-08 2014-03-31 13F Berkshire Hathaway Class B COM 084670702 1,750 0 0.00 219 5.80 0.1019
2014-02-14 2013-12-31 13F Berkshire Hathaway Class B COM 084670702 1,750 -250 -12.50 207 -8.81 0.0959
2013-11-12 2013-09-30 13F Berkshire Hathaway Class B COM 084670702 2,000 250 14.29 227 16.41 0.1193
2013-08-14 2013-06-30 13F Berkshire Hathaway Class B COM 084670702 1,750 1,750 195 0.1068
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.