Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionRnc Capital Management Llc
Latest Disclosed Ownership2,050 shares
Latest Disclosed Value $ 1,030,432
Rnc Capital Management Llc ownership in BRKB / Berkshire Hathaway Inc.

On February 3, 2026 - Rnc Capital Management Llc filed a 13F-HR form disclosing ownership of 2,050 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,030,432 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 2, 2021 disclosing 0 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)
2026-02-03 2025-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,050 0 0.00 1,030 0.00 0.0469
2025-11-14 2025-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,050 312 17.95 1,031 22.04 0.0474
2025-07-30 2025-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,738 70 4.20 844 -4.95 0.0409
2025-05-16 2025-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,668 -97 -5.50 888 11.00 0.0453
2025-01-28 2024-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,765 -60 -3.29 800 7.82 0.0427
2024-11-13 2024-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,825 0 0.00 742 0.00 0.0412
2024-08-14 2024-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,825 320 21.26 742 17.41 0.0412
2024-08-07 2024-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,505 -312 -17.17 633 -2.47 0.0360
2024-01-17 2023-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,817 -49 -2.63 648 -0.77 0.0388
2023-12-27 2023-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,866 -21 -1.11 654 0.0406
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,887 -1,259 -40.02 1 0.0356
2023-04-21 2023-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 3,146 486 18.27 1 0.0548
2023-01-11 2022-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,660 -372 -12.27 1 -100.00 0.0461
2022-10-18 2022-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 3,032 182 6.39 810 4.11 0.0508
2022-07-22 2022-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,850 200 7.55 778 -16.79 0.0443
2022-07-22 2022-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,650 177 7.16 935 26.52 0.0474
2022-02-04 2021-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,473 0 0.00 739 9.48 0.0366
2021-11-02 2021-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,473 0 0.00 675 -1.75 0.0359
2021-07-20 2021-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,473 77 3.21 687 12.25 0.0363
2021-04-26 2021-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,396 0 0.00 612 10.07 0.0346
2021-01-13 2020-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,396 1,116 87.19 556 103.66 0.0345
2020-12-03 2020-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,280 -200 -13.51 273 3.41 0.0194
2020-07-23 2020-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,480 -624 -29.66 264 -31.43 0.0190
2020-04-22 2020-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,104 499 31.09 385 5.77 0.0328
2020-03-09 2019-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,605 -60 -3.60 364 5.20 0.0230
2020-07-22 2019-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,665 -572 -25.57 346 -27.46 0.0246
2019-07-25 2019-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,237 388 20.98 477 28.57 0.0332
2019-04-18 2019-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,849 429 30.21 371 27.93 0.0259
2019-01-15 2018-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,420 100 7.58 290 2.47 0.0219
2018-10-25 2018-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,320 -175 -11.71 283 1.43 0.0187
2018-07-20 2018-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,495 262 21.25 279 13.41 0.0196
2018-04-11 2018-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,233 -950 -43.52 246 -43.19 0.0182
2018-01-17 2017-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,183 -350 -13.82 433 -6.68 0.0300
2017-10-16 2017-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,533 -182 -6.70 464 0.87 0.0349
2017-08-21 2017-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,715 2 0.07 460 1.77 0.0356
2017-05-04 2017-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,713 -220 -7.50 452 -5.44 0.0360
2017-02-01 2016-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,933 -337 -10.31 478 1.27 0.0395
2016-10-18 2016-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 3,270 256 8.49 472 8.26 0.0419
2016-07-22 2016-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 3,014 487 19.27 436 21.45 0.0407
2016-04-14 2016-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,527 727 40.39 359 50.84 0.0355
2016-01-13 2015-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,800 35 1.98 238 3.48 0.0239
2015-11-03 2015-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,765 -125 -6.61 230 -10.51 0.0222
2015-07-30 2015-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,890 90 5.00 257 -1.15 0.0219
2015-05-06 2015-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,800 -295 -14.08 260 -17.46 0.0218
2015-01-21 2014-12-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,095 0 0.00 315 9.00 0.0258
2014-10-24 2014-09-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 2,095 239 12.88 289 22.98 0.0232
2014-08-15 2014-06-30 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,856 0 0.00 235 1.29 0.0189
2014-05-09 2014-03-31 13F BERKSHIRE HATHAWAY INC - CL B COM 084670702 1,856 1,856 232 0.0202
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.