Berkshire Hathaway Inc.
MX ˙ BMV
SecurityMX:BRKB / Berkshire Hathaway Inc.
InstitutionClear Harbor Asset Management, LLC
Latest Disclosed Ownership60,672 shares
Latest Disclosed Value $ 29,074,022
Clear Harbor Asset Management, LLC reports 3.01% increase in ownership of BRKB / Berkshire Hathaway Inc.

On May 5, 2026 - Clear Harbor Asset Management, LLC filed a 13F-HR form disclosing ownership of 60,672 shares of Berkshire Hathaway Inc. (MX:BRKB) valued at $29,074,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 58,899 shares of Berkshire Hathaway Inc.. This represents a change in shares of 3.01% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 60,672 1,773 3.01 29,074 -1.79 2.0053
2026-02-10 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,899 483 0.83 29,606 0.81 2.0029
2025-11-14 2025-09-30 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,416 -117 -0.20 29,368 3.29 2.0368
2025-10-23 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,416 -117 29,368 1.6049
2025-07-14 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,533 233 0.40 28,434 -8.43 2.1316
2025-05-15 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,300 1,210 2.12 31,049 19.99 2.4521
2025-01-17 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,090 -411 -0.71 25,878 -2.22 2.0629
2024-10-24 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,501 487 0.85 26,465 14.11 2.1499
2024-07-17 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,014 -154 -0.27 23,193 -3.52 1.9910
2024-05-10 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,168 106 0.19 24,040 18.13 2.1008
2024-01-18 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,062 -526 -0.91 20,352 0.88 1.8667
2023-10-26 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,588 -275 -0.48 20,173 2.24 2.0897
2023-07-21 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 57,863 5,395 10.28 19,731 21.80 1.9323
2023-05-04 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 52,468 11,299 27.45 16,201 27.39 1.6706
2023-01-20 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,169 -323 -0.78 12,717 14.78 1.5872
2022-10-25 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,492 -71 -0.17 11,079 -2.37 1.5428
2022-07-20 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,563 -553 -1.31 11,348 -23.65 1.5101
2022-05-10 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,116 -350 -0.82 14,863 17.06 1.6831
2022-01-21 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,466 -85 -0.20 12,697 9.32 1.3777
2021-11-03 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,551 706 1.69 11,614 -0.14 0.2155
2021-08-06 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 41,845 -2,197 -4.99 11,630 3.37 1.4092
2021-04-14 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,042 -554 -1.24 11,251 8.81 1.4710
2021-02-04 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,596 86 0.19 10,340 9.11 1.4851
2020-10-26 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,510 -13,759 -23.61 9,478 -8.89 1.6184
2020-08-05 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 58,269 14,075 31.85 10,402 28.74 1.9694
2020-05-14 2020-03-31 13F/A-1 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,194 -386 -0.87 8,080 -19.98 1.8833
2020-05-08 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,194 -386 8,080 1,915,322.8196
2020-01-29 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,580 -697 -1.54 10,097 7.20 1.7494
2019-10-31 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 45,277 3,171 7.53 9,419 4.94 1.8390
2019-07-22 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,106 -2,898 -6.44 8,976 -0.72 1.8060
2019-04-19 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 45,004 -836 -1.82 9,041 -3.41 1.8321
2019-02-11 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 45,840 1,945 4.43 9,360 5.57 2.1525
2018-10-26 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,895 60 0.14 8,866 8.36 1.7873
2018-08-03 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,835 -289 -0.65 8,182 -7.04 1.5283
2018-05-01 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 44,124 354 0.81 8,802 1.45 1.7197
2018-01-23 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,770 -81 -0.18 8,676 7.92 1.6320
2017-10-25 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,851 -30 -0.07 8,039 7.82 1.5946
2017-07-25 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,881 1,200 2.81 7,456 4.81 1.4260
2017-04-25 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,681 240 0.57 7,114 2.85 1.4363
2017-01-20 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 42,441 -890 -2.05 6,917 10.50 1.4569
2016-11-07 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 43,331 -2,775 -6.02 6,260 -6.23 1.3666
2016-08-05 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 46,106 -1,090 -2.31 6,676 -0.30 1.4518
2016-05-18 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 47,196 -3,439 -6.79 6,696 0.15 1.4724
2016-01-20 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,635 -2,275 -4.30 6,686 -3.09 1.5190
2015-10-27 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 52,910 -429 -0.80 6,899 -4.97 1.5786
2015-07-23 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 53,339 761 1.45 7,260 -4.32 1.4228
2015-04-16 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 52,578 52,578 0.00 7,588 1.4596
2015-01-30 2014-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 0 -51,456 -100.00 0 -100.00
2014-10-22 2014-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 51,456 878 1.74 7,108 11.05 1.5781
2014-07-23 2014-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,578 -86 -0.17 6,401 1.11 1.3697
2014-05-15 2014-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,664 245 0.49 6,331 5.90 1.4829
2014-02-07 2013-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,419 64 0.13 5,978 4.58 1.5023
2013-10-30 2013-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 50,355 400 0.80 5,716 2.24 1.5518
2013-07-19 2013-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 49,955 49,955 5,591 1.6571
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.