W. R. Berkley Corporation
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionUs Bancorp \de\
Latest Disclosed Ownership15,195 shares
Latest Disclosed Value $ 1,007,210
Us Bancorp \de\ reports 11.02% decrease in ownership of WRB / W. R. Berkley Corporation

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 15,195 shares of W. R. Berkley Corporation (MX:WRB) valued at $1,007,210 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 17,077 shares of W. R. Berkley Corporation. This represents a change in shares of -11.02% 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)
2026-05-14 2026-03-31 13F BERKLEY W R COM 084423102 15,195 -1,882 -11.02 1,007 -15.87 0.0004
2026-01-30 2025-12-31 13F BERKLEY W R COM 084423102 17,077 -1,937 -10.19 1,198 -17.84 0.0014
2025-11-12 2025-09-30 13F BERKLEY W R COM 084423102 19,014 -966 -4.83 1,457 -0.75 0.0017
2025-07-24 2025-06-30 13F BERKLEY W R COM 084423102 19,980 849 4.44 1,468 7.86 0.0018
2025-05-08 2025-03-31 13F BERKLEY W R COM 084423102 19,131 814 4.44 1,362 26.96 0.0018
2025-02-05 2024-12-31 13F BERKLEY W R COM 084423102 18,317 773 4.41 1,072 7.74 0.0014
2024-10-28 2024-09-30 13F BERKLEY W R COM 084423102 17,544 6,829 63.73 996 18.17 0.0013
2024-08-07 2024-06-30 13F BERKLEY W R COM 084423102 10,715 -126 -1.16 842 -12.20 0.0011
2024-05-08 2024-03-31 13F BERKLEY W R COM 084423102 10,841 682 6.71 959 33.57 0.0013
2024-02-09 2023-12-31 13F BERKLEY W R COM 084423102 10,159 93 0.92 719 12.36 0.0011
2023-11-03 2023-09-30 13F BERKLEY W R COM 084423102 10,066 916 10.01 640 17.46 0.0010
2023-08-10 2023-06-30 13F BERKLEY W R COM 084423102 9,150 -296 -3.13 545 -7.48 0.0009
2023-05-09 2023-03-31 13F WR BERKLEY COMMON STOCK 084423102 9,446 -810 -7.90 588 -20.97 0.0010
2023-02-13 2022-12-31 13F WR BERKLEY COMMON STOCK 084423102 10,256 -633 -5.81 745 5.83 0.0013
2022-10-27 2022-09-30 13F WR BERKLEY COMMON STOCK 084423102 10,889 -675 -5.84 703 -10.90 0.0015
2022-08-01 2022-06-30 13F WR BERKLEY COMMON STOCK 084423102 11,564 -522 -4.32 789 -1.87 0.0015
2022-05-11 2022-03-31 13F WR BERKLEY COMMON STOCK 084423102 12,086 6,614 120.87 804 78.67 0.0013
2022-02-11 2021-12-31 13F WR BERKLEY COMMON STOCK 084423102 5,472 1,030 23.19 450 38.89 0.0007
2021-11-10 2021-09-30 13F WR BERKLEY COMMON STOCK 084423102 4,442 82 1.88 324 -0.31 0.0006
2021-08-05 2021-06-30 13F WR BERKLEY COMMON STOCK 084423102 4,360 44 1.02 325 -0.31 0.0006
2021-04-28 2021-03-31 13F WR BERKLEY COMMON STOCK 084423102 4,316 239 5.86 326 20.30 0.0007
2021-02-04 2020-12-31 13F WR BERKLEY COMMON STOCK 084423102 4,077 -113 -2.70 271 5.86 0.0006
2020-11-10 2020-09-30 13F WR BERKLEY COMMON STOCK 084423102 4,190 2,556 156.43 256 172.34 0.0006
2020-08-07 2020-06-30 13F WR BERKLEY COMMON STOCK 084423102 1,634 447 37.66 94 51.61 0.0002
2020-05-13 2020-03-31 13F WR BERKLEY COMMON STOCK 084423102 1,187 -13 -1.08 62 -25.30 0.0002
2020-02-04 2019-12-31 13F WR BERKLEY COMMON STOCK 084423102 1,200 280 30.43 83 25.76 0.0002
2019-11-08 2019-09-30 13F WR BERKLEY COMMON STOCK 084423102 920 87 10.44 66 20.00 0.0002
2019-08-13 2019-06-30 13F WR BERKLEY COMMON STOCK 084423102 833 194 30.36 55 1.85 0.0002
2019-05-08 2019-03-31 13F WR BERKLEY COMMON STOCK 084423102 639 -32 -4.77 54 8.00 0.0002
2019-02-13 2018-12-31 13F WR BERKLEY COMMON STOCK 084423102 671 -5,270 -88.71 50 -89.47 0.0002
2018-10-31 2018-09-30 13F WR BERKLEY COMMON STOCK 084423102 5,941 -277 -4.45 475 5.32 0.0014
2018-08-08 2018-06-30 13F WR BERKLEY COMMON STOCK 084423102 6,218 -275 -4.24 451 -4.65 0.0014
2018-05-08 2018-03-31 13F WR BERKLEY COMMON STOCK 084423102 6,493 -349 -5.10 473 -3.47 0.0015
2018-02-02 2017-12-31 13F WR BERKLEY COMMON STOCK 084423102 6,842 -442 -6.07 490 0.82 0.0015
2017-11-13 2017-09-30 13F WR BERKLEY COMMON STOCK 084423102 7,284 117 1.63 486 -1.82 0.0016
2017-07-19 2017-06-30 13F WR BERKLEY COMMON STOCK 084423102 7,167 137 1.95 495 -0.20 0.0017
2017-05-03 2017-03-31 13F WR BERKLEY COMMON STOCK 084423102 7,030 -308 -4.20 496 1.64 0.0017
2017-02-08 2016-12-31 13F WR BERKLEY COMMON STOCK 084423102 7,338 1,000 15.78 488 33.33 0.0018
2016-11-04 2016-09-30 13F WR BERKLEY COMMON STOCK 084423102 6,338 0 0.00 366 -3.68 0.0014
2016-08-10 2016-06-30 13F WR BERKLEY COMMON STOCK 084423102 6,338 607 10.59 380 18.01 0.0014
2016-05-13 2016-03-31 13F WR BERKLEY COMMON STOCK 084423102 5,731 4,784 505.17 322 519.23 0.0013
2016-02-10 2015-12-31 13F WR BERKLEY COMMON STOCK 084423102 947 249 35.67 52 36.84 0.0002
2015-11-16 2015-09-30 13F WR BERKLEY COMMON STOCK 084423102 698 0 0.00 38 5.56 0.0002
2015-08-10 2015-06-30 13F WR BERKLEY COMMON STOCK 084423102 698 500 252.53 36 260.00 0.0001
2015-05-08 2015-03-31 13F WR BERKLEY COMMON STOCK 084423102 198 0 0.00 10 0.00 0.0000
2015-02-13 2014-12-31 13F WR BERKLEY COMMON STOCK 084423102 198 0 0.00 10 11.11 0.0000
2014-11-14 2014-09-30 13F WR BERKLEY COMMON STOCK 084423102 198 0 0.00 9 0.00 0.0000
2014-08-14 2014-06-30 13F WR BERKLEY COMMON STOCK 084423102 198 -151 -43.27 9 -35.71 0.0000
2014-05-14 2014-03-31 13F WR BERKLEY COMMON STOCK 084423102 349 151 76.26 14 55.56 0.0001
2014-02-13 2013-12-31 13F WR BERKLEY COMMON STOCK 084423102 198 0 0.00 9 12.50 0.0000
2013-11-07 2013-09-30 13F WR BERKLEY COMMON STOCK 084423102 198 0 0.00 8 0.00 0.0000
2013-08-09 2013-06-30 13F WR BERKLEY COMMON STOCK 084423102 198 198 8 0.0000
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.