WR伯克利公司
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionStrs Ohio
Latest Disclosed Ownership5,378 shares
Latest Disclosed Value $ 356,454
Strs Ohio reports 22.63% decrease in ownership of WRB / W. R. Berkley Corporation

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 5,378 shares of W. R. Berkley Corporation (US:WRB) valued at $356,454 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 6,951 shares of W. R. Berkley Corporation. This represents a change in shares of -22.63% during the quarter. The current value of the position is $356,615 USD.

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)
2026-04-24 2026-03-31 13F WR BERKLEY COM_STK 084423102 5,378 -1,573 -22.63 356 -26.90 0.0014
2026-02-02 2025-12-31 13F WR BERKLEY COM_STK 084423102 6,951 12 0.17 487 -8.29 0.0018
2025-10-30 2025-09-30 13F WR BERKLEY COM_STK 084423102 6,939 -39,271 -84.98 532 -84.36 0.0019
2025-08-04 2025-06-30 13F WR BERKLEY COM_STK 084423102 46,210 12,679 37.81 3,395 42.29 0.0127
2025-05-28 2025-03-31 13F WR BERKLEY COM_STK 084423102 33,531 -8,542 -20.30 2,386 -3.09 0.0100
2025-05-28 2024-12-31 13F WR BERKLEY COM_STK 084423102 42,073 4,503 11.99 2,462 15.53 0.0098
2024-11-01 2024-09-30 13F WR BERKLEY COM_STK 084423102 37,570 8,729 30.27 2,131 -5.96 0.0082
2024-08-05 2024-06-30 13F WR BERKLEY COM_STK 084423102 28,841 -574 -1.95 2,266 113,200.00 0.0090
2024-05-13 2024-03-31 13F WR BERKLEY COM_STK 084423102 29,415 1,598 5.74 3 100.00 0.0104
2024-01-30 2023-12-31 13F BERKLEY COM 084423102 27,817 1,188 4.46 2 0.00 0.0082
2023-10-26 2023-09-30 13F/A-1 BERKLEY COM 084423102 26,629 -6,343 -19.24 2 0.00 0.0075
2023-10-26 2023-09-30 13F BERKLEY COM 084423102 26,629 2
2023-07-31 2023-06-30 13F BERKLEY COM 084423102 32,972 6,711 25.56 2 0.00 0.0083
2023-08-02 2023-03-31 13F/A-2 BERKLEY COM 084423102 26,261 -5,770 -18.01 2 -50.00 0.0071
2023-08-02 2023-03-31 13F/A-1 BERKLEY COM 084423102 26,261 2
2023-01-26 2022-12-31 13F BERKLEY COM 084423102 32,031 3,315 11.54 2 -99.89 0.0105
2022-10-27 2022-09-30 13F BERKLEY COM 084423102 28,716 932 3.35 1,854 -2.22 0.0088
2022-07-25 2022-06-30 13F BERKLEY COM 084423102 27,784 -1,355 -4.65 1,896 -2.27 0.0085
2022-04-21 2022-03-31 13F BERKLEY COM 084423102 29,139 2,759 10.46 1,940 -10.72 0.0071
2022-01-24 2021-12-31 13F BERKLEY COM 084423102 26,380 3,688 16.25 2,173 30.90 0.0075
2021-10-22 2021-09-30 13F BERKLEY COM 084423102 22,692 152 0.67 1,660 -1.01 0.0062
2021-07-26 2021-06-30 13F BERKLEY COM 084423102 22,540 1,288 6.06 1,677 4.75 0.0060
2021-04-23 2021-03-31 13F BERKLEY COM 084423102 21,252 689 3.35 1,601 17.29 0.0060
2021-01-25 2020-12-31 13F BERKLEY COM 084423102 20,563 462 2.30 1,365 11.07 0.0053
2020-12-14 2020-09-30 13F BERKLEY COM 084423102 20,101 -987 -4.68 1,229 1.74 0.0051
2020-07-23 2020-06-30 13F BERKLEY COM 084423102 21,088 2,297 12.22 1,208 23.27 0.0053
2020-04-23 2020-03-31 13F BERKLEY COM 084423102 18,791 -2,885 -13.31 980 -34.54 0.0052
2020-01-24 2019-12-31 13F BERKLEY COM 084423102 21,676 9,322 75.46 1,497 67.83 0.0063
2019-10-21 2019-09-30 13F/A-1 BERKLEY COM 084423102 12,354 -682 -5.23 892 3.84 0.0039
2019-10-21 2019-09-30 13F BERKLEY COM 084423102 12,354 -9,322 892 3,948.0415
2019-07-25 2019-06-30 13F BERKLEY COM 084423102 13,036 4,078 45.52 859 13.32 0.0038
2019-04-19 2019-03-31 13F BERKLEY COM 084423102 8,958 -480 -5.09 758 8.75 0.0034
2019-01-23 2018-12-31 13F BERKLEY COM 084423102 9,438 -2,218 -19.03 697 -25.13 0.0035
2018-10-19 2018-09-30 13F BERKLEY COM 084423102 11,656 1,681 16.85 931 28.95 0.0041
2018-08-06 2018-06-30 13F BERKLEY COM 084423102 9,975 8,703 684.20 722 684.78 0.0031
2018-04-20 2018-03-31 13F BERKLEY COM 084423102 1,272 -42 -3.20 92 -2.13 0.0004
2018-01-23 2017-12-31 13F BERKLEY COM 084423102 1,314 0 0.00 94 8.05 0.0004
2017-10-23 2017-09-30 13F BERKLEY COM 084423102 1,314 0 0.00 87 -3.33 0.0004
2017-07-26 2017-06-30 13F BERKLEY COM 084423102 1,314 0 0.00 90 -2.17 0.0004
2017-04-26 2017-03-31 13F BERKLEY COM 084423102 1,314 0 0.00 92 5.75 0.0004
2017-01-24 2016-12-31 13F BERKLEY COM 084423102 1,314 -962 -42.27 87 -31.50 0.0004
2016-04-25 2016-03-31 13F/A-1 BERKLEY COM 084423102 2,276 120 5.57 127 7.63 0.0006
2016-01-28 2015-12-31 13F BERKLEY COM 084423102 2,156 -1,322 -38.01 118 -37.57 0.0005
2015-10-21 2015-09-30 13F BERKLEY COM 084423102 3,478 3,478 189 0.0009
2013-10-24 2013-09-30 13F BERKLEY COM 084423102 0 -21,990 -100.00 0 -100.00
2013-08-12 2013-06-30 13F BERKLEY COM 084423102 21,990 21,990 899 0.0039
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.