Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionArchon Partners LLC
Latest Disclosed Ownership176,800 shares
Latest Disclosed Value $ 84,722,560
Archon Partners LLC ownership in BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Archon Partners LLC filed a 13F-HR form disclosing ownership of 176,800 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $84,722,560 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 176,800 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)
2026-05-15 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 84,723 -4.67 10.0259
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 88,869 -0.02 9.2882
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 88,884 3.49 9.4449
2025-08-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 85,884 -8.79 9.9082
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 94,160 17.50 11.4029
2025-02-14 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 80,140 -1.52 9.3238
2024-11-14 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 81,374 13.14 9.4120
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 71,922 -3.26 9.2336
2024-05-15 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 74,348 17.90 9.0979
2024-02-14 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 63,057 1.81 8.6896
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 61,933 2.73 9.6871
2023-08-14 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 0 0.00 60,289 10.44 9.0221
2023-05-15 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 176,800 9,425 5.63 54,591 5.59 9.1081
2023-02-14 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 167,375 165 0.10 51,702 15.80 9.3214
2022-11-14 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 167,210 700 0.42 44,648 -1.79 8.4806
2022-08-15 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 45,461 -22.64 7.9817
2022-05-16 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 58,763 18.03 7.7837
2022-02-14 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 49,786 9.55 6.0810
2021-11-15 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 45,447 -1.79 5.7042
2021-08-16 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 46,276 8.79 5.7882
2021-05-17 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 0 0.00 42,538 10.18 5.9442
2021-02-16 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 166,510 -1,530 -0.91 38,609 7.90 5.1849
2020-11-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 35,782 19.29 5.6302
2020-08-14 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 29,997 -2.36 5.4511
2020-05-15 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 30,723 -19.28 6.6483
2020-02-14 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 38,061 8.88 6.4873
2019-11-14 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 34,956 -2.41 6.7833
2019-08-14 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 35,821 6.11 7.1025
2019-05-15 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 0 0.00 33,758 -1.61 7.1132
2019-02-12 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 168,040 7,620 4.75 34,310 -0.11 8.5569
2018-11-07 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 160,420 0 0.00 34,348 14.72 7.0094
2018-08-14 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 160,420 0 0.00 29,942 -6.43 6.4834
2018-05-14 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 160,420 0 0.00 32,001 0.64 6.9840
2018-02-05 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 160,420 0 0.00 31,798 8.13 6.9230
2017-11-06 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 160,420 430 0.27 29,408 8.52 6.8541
2017-08-08 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 159,990 50,960 46.74 27,098 49.11 6.2940
2017-05-15 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 109,030 0 0.00 18,173 2.27 4.2590
2017-02-14 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 109,030 8,630 8.60 17,770 22.51 4.6422
2016-11-14 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 100,400 1,236 1.25 14,505 1.02 3.8453
2016-08-15 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 99,164 430 0.44 14,358 2.50 3.9150
2016-05-16 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 98,734 4,999 5.33 14,008 13.18 3.8623
2016-02-16 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 93,735 12,360 15.19 12,377 16.64 3.3475
2015-11-16 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 81,375 30,415 59.68 10,611 52.98 3.1396
2015-08-12 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,960 6,960 15.82 6,936 32.95 1.7930
2014-02-13 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,000 -4,000 -8.33 5,217 -4.24 1.4399
2013-11-13 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 48,000 -18,500 -27.82 5,448 -26.80 1.6491
2013-08-13 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 66,500 66,500 7,443 2.5389
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.