Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionRiggs Asset Managment Co. Inc.
Latest Disclosed Ownership2,579 shares
Latest Disclosed Value $ 1,235,857
Riggs Asset Managment Co. Inc. reports 4.03% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 12, 2026 - Riggs Asset Managment Co. Inc. filed a 13F-HR form disclosing ownership of 2,579 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $1,235,857 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 2,479 shares of Berkshire Hathaway Inc.. This represents a change in shares of 4.03% 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)
2026-05-12 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,579 100 4.03 1,236 -0.88 0.2545
2026-01-29 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,479 0 0.00 1,246 0.00 0.2513
2025-11-13 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,479 53 2.18 1,246 5.77 0.2703
2025-08-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,426 15 0.62 1,178 -8.26 0.2897
2025-04-29 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,411 15 0.63 1,284 18.56 0.3667
2025-01-24 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,396 34 1.44 1,083 -0.37 0.2894
2024-10-24 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,362 0 0.00 1,087 13.23 0.2972
2024-07-29 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,362 -15 -0.63 961 -3.90 0.2864
2024-05-03 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,377 -32 -1.33 1,000 16.30 0.2916
2024-02-01 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,409 0 0.00 859 1.90 0.2730
2023-11-14 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,409 0 0.00 844 2.68 0.3004
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,409 0 0.00 821 10.50 0.2894
2023-05-09 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,409 -17 -0.70 744 -0.80 0.2889
2023-01-30 2022-12-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,426 0 0.00 749 15.59 0.3087
2022-11-09 2022-09-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,426 0 0.00 648 -2.11 0.2569
2022-08-04 2022-06-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,426 0 0.00 662 -22.66 0.2732
2022-05-05 2022-03-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,426 21 0.87 856 19.05 0.2505
2022-02-02 2021-12-31 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,405 -50 -2.04 719 7.31 0.1948
2021-11-04 2021-09-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,455 0 0.00 670 -1.76 0.2020
2021-07-16 2021-06-30 13F BERKSHIRE HATHAWAY INC COM CL B CL B NEW 084670702 2,455 1,000 68.73 682 83.33 0.1897
2021-04-27 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,455 -70 -4.59 372 5.08 0.1128
2021-01-29 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,525 -900 -37.11 354 -9.00 0.1088
2020-10-13 2020-09-30 13F FORTUNE BRANDS HM&S COM 084670702 2,425 1,000 70.18 389 53.15 0.1639
2020-08-11 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 0 0.00 254 -2.31 0.1030
2020-04-23 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 0 0.00 260 -19.50 0.1671
2020-01-24 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 0 0.00 323 9.12 0.1303
2019-10-31 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 0 0.00 296 -2.63 0.1518
2019-07-26 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 0 0.00 304 6.29 0.1699
2019-05-06 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,425 -500 -25.97 286 -27.23 0.1945
2019-01-14 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 393 -4.61 0.2852
2018-10-15 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 412 14.76 0.2016
2018-07-27 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 359 -6.51 0.1580
2018-04-16 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 384 0.52 0.1582
2018-02-14 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL Equities 084670702 1,925 0 0.00 382 8.22 0.1540
2017-10-30 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 353 8.28 0.1592
2017-07-18 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 0 0.00 326 1.56 0.1461
2017-05-01 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,925 152 8.57 321 11.07 0.1607
2017-01-26 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,773 0 0.00 289 12.89 0.1438
2016-11-09 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,773 148 9.11 256 8.94 0.1328
2016-07-28 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,625 -37 -2.23 235 -0.42 0.1233
2016-05-13 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,662 0 0.00 236 7.76 0.1695
2016-02-02 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,662 0 0.00 219 0.92 0.1081
2015-11-12 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,662 37 2.28 217 -1.81 0.1338
2015-08-04 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 1,625 -1,000 -38.10 221 -41.69 0.1096
2015-05-08 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,625 2,625 0.00 379 0.1819
2015-02-04 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 0 -2,625 -100.00 0 -100.00
2014-11-05 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL COM 084670702 2,625 100 3.96 363 13.44 0.2109
2014-08-01 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B 084670702 2,525 0 0.00 320 1.27 0.1896
2014-05-14 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 2,525 200 8.60 316 14.49 0.2053
2014-03-14 2013-12-31 13F BERKSHIRE HATHAWAY CL B CL B 084670702 2,325 2,325 276 0.1500
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.