Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionArmbruster Capital Management, Inc.
Latest Disclosed Ownership4,912 shares
Latest Disclosed Value $ 2,353,830
Armbruster Capital Management, Inc. reports 3.74% increase in ownership of BRKB / Berkshire Hathaway Inc.

On April 21, 2026 - Armbruster Capital Management, Inc. filed a 13F-HR form disclosing ownership of 4,912 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $2,353,830 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 4,735 shares of Berkshire Hathaway Inc.. This represents a change in shares of 3.74% 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)
2026-04-21 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,912 177 3.74 2,354 -1.13 0.3858
2026-01-23 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,735 -24 -0.50 2,380 -0.50 0.3997
2025-10-20 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,759 430 9.93 2,393 13.80 0.4072
2025-07-23 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,329 0 0.00 2,103 -8.81 0.3809
2025-04-16 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,329 -43 -0.98 2,306 16.36 0.4598
2025-01-22 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,372 -151 -3.34 1,982 -4.81 0.4026
2024-11-04 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,523 -5 -0.11 2,082 13.04 0.4147
2024-07-29 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,528 180 4.14 1,842 0.71 0.3825
2024-05-07 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,348 0 0.00 1,828 17.94 0.3890
2024-02-01 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,348 0 0.00 1,551 1.77 0.3532
2023-10-17 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,348 -12 -0.28 1,523 2.49 0.3848
2023-08-03 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,360 -100 -2.24 1,487 7.92 0.3659
2023-05-09 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,460 95 2.18 1,377 2.15 0.3518
2023-02-13 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,365 156 3.71 1,348 19.93 0.3495
2022-11-16 2022-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,209 0 0.00 1,124 -2.18 0.3206
2022-10-19 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,209 0 1,124 0.3206
2022-08-01 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,209 238 5.99 1,149 -17.99 0.3107
2022-05-05 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,971 25 0.63 1,401 18.73 0.3372
2022-02-15 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,946 -11 -0.28 1,180 9.26 0.2700
2021-10-21 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,957 15 0.38 1,080 -1.46 0.3086
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,942 0 0.00 1,096 8.84 0.3093
2021-04-29 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,942 0 0.00 1,007 10.18 0.2983
2021-02-12 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,942 -124 -3.05 914 5.54 0.3068
2020-10-30 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,066 13 0.32 866 19.61 0.3328
2020-08-10 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,053 -100 -2.41 724 -4.61 0.2905
2020-05-08 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 4,153 425 11.40 759 -10.07 0.3576
2020-02-12 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,728 -207 -5.26 844 3.05 0.3229
2019-11-08 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,935 0 0.00 819 -2.38 0.3398
2019-07-18 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,935 0 0.00 839 6.07 0.3519
2019-04-16 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,935 75 1.94 791 0.38 0.3420
2019-01-28 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,860 25 0.65 788 -4.02 0.3907
2018-10-22 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,835 0 0.00 821 14.66 0.3588
2018-07-30 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,835 -1 -0.03 716 -6.41 0.3364
2018-04-18 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,836 1 0.03 765 0.66 0.4850
2018-02-02 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 3,835 32 0.84 760 9.04 0.3475
2017-11-08 2017-09-30 13F Berkshire Hathaway B Equities 084670702 3,803 -200 -5.00 697 2.80 0.3574
2017-08-01 2017-06-30 13F Berkshire Hathaway B Equities 084670702 4,003 -38 -0.94 678 0.59 0.3663
2017-05-08 2017-03-31 13F Berkshire Hathaway B Equities 084670702 4,041 0 0.00 674 2.28 0.3762
2017-02-06 2016-12-31 13F Berkshire Hathaway Inc. Cl B Equities 084670702 4,041 100 2.54 659 15.61 0.3862
2016-10-25 2016-09-30 13F Berkshire Hathaway Inc. Cl B Equities 084670702 3,941 0 0.00 570 -0.18 0.3530
2016-07-29 2016-06-30 13F Berkshire Hathaway Inc. Cl B Equities 084670702 3,941 0 0.00 571 2.15 0.3696
2016-05-03 2016-03-31 13F Berkshire Hathaway B Equities 084670702 3,941 2,409 157.25 559 176.73 0.3820
2016-01-26 2015-12-31 13F Berkshire Hathaway Inc. Cl B Equities 084670702 1,532 1,532 202 0.1803
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.