Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionBlue Chip Partners, Inc.
Latest Disclosed Ownership3,798 shares
Latest Disclosed Value $ 1,820,002
Blue Chip Partners, Inc. reports 0.21% decrease in ownership of BRKB / Berkshire Hathaway Inc.

On May 15, 2026 - Blue Chip Partners, Inc. filed a 13F-HR form disclosing ownership of 3,798 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,820,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,806 shares of Berkshire Hathaway Inc.. This represents a change in shares of -0.21% 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 3,798 -8 -0.21 1,820 -4.86 0.1310
2026-02-17 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,806 -237 -5.86 1,913 -5.86 0.1387
2025-11-17 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,043 152 3.91 2,033 7.51 0.1520
2025-08-15 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,891 645 19.87 1,890 9.38 0.1540
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,246 -76 -2.29 1,729 14.82 0.1491
2025-01-31 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,322 -4 -0.12 1,506 -1.63 0.1295
2024-11-04 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,326 45 1.37 1,531 14.69 0.1330
2024-07-29 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,281 -6 -0.18 1,335 -3.47 0.1233
2024-04-25 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,287 0 0.00 1,382 17.92 0.1342
2024-02-05 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,287 -26 -0.78 1,172 1.03 0.1223
2023-10-30 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,313 0 0.00 1,161 2.75 0.1383
2023-08-02 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,313 0 0.00 1,130 10.47 0.1284
2023-05-01 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,313 -73 -2.16 1,023 -2.20 0.1213
2023-02-01 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,386 -65 -1.88 1,046 13.46 0.1301
2022-10-27 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,451 -308 -8.19 921 -10.23 0.1262
2022-08-01 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,759 105 2.87 1,026 -20.47 0.1308
2022-05-04 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,654 -500 -12.04 1,290 3.86 0.1604
2022-02-08 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,154 0 0.00 1,242 9.52 0.1559
2021-11-02 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,154 1,500 56.52 1,134 53.66 0.1593
2021-08-03 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,654 0 0.00 738 8.85 0.1054
2021-05-04 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,654 215 8.82 678 19.79 0.1041
2021-02-05 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,439 78 3.30 566 12.52 0.0886
2020-10-27 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,361 651 38.07 503 64.92 0.0896
2020-07-30 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,710 -54 -3.06 305 -5.57 0.0598
2020-05-08 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,764 661 59.93 323 29.20 0.0803
2020-02-11 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,103 273 32.89 250 44.51 0.0476
2019-10-29 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 830 0 0.00 173 -2.26 0.0366
2019-07-31 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 830 -1,783 -68.24 177 -66.29 0.0397
2019-04-23 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,613 192 7.93 525 6.28 0.1243
2019-02-05 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,421 1,805 293.02 494 274.24 0.1242
2018-10-26 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 616 0 0.00 132 14.78 0.0322
2018-07-25 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 616 0 0.00 115 -6.50 0.0304
2018-04-25 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 616 0 0.00 123 0.82 0.0340
2018-01-31 2017-12-31 13F BERKSHIRE HATHAWAY INC D CL B NEW 084670702 616 0 0.00 122 7.96 0.0361
2017-11-07 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 616 0 0.00 113 8.65 0.0364
2017-08-07 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 616 616 104 0.0363
2017-05-08 2017-03-31 13F BERKSHIRE HATHAWAY INC DE CL B NEW 084670702 0 -1,831 -100.00 0 -100.00
2017-02-01 2016-12-31 13F BERKSHIRE HATHAWAY INC DE CL B NEW 084670702 1,831 0 0.00 298 12.45 0.1167
2016-11-04 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,831 0 0.00 265 0.00 0.1171
2016-08-19 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,831 0 0.00 265 1.92 0.1193
2016-05-10 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,831 0 0.00 260 7.44 0.1265
2016-02-02 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,831 0 0.00 242 1.26 0.1261
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,831 -671 -26.82 239 -29.91 0.1521
2015-08-04 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,502 671 36.65 341 29.17 0.2181
2015-04-28 2015-03-31 13F Berkshire Hathaway Inc Class B CL B NEW 084670702 1,831 -950 -34.16 264 -36.84 0.1789
2015-02-12 2014-12-31 13F Berkshire Hathaway Inc Class B CL B NEW 084670702 2,781 2,781 418 0.2917
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.