WR伯克利公司
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionPrudential Financial Inc
Latest Disclosed Ownership143,131 shares
Latest Disclosed Value $ 9,486,723
Prudential Financial Inc reports 3.79% decrease in ownership of WRB / W. R. Berkley Corporation

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 143,131 shares of W. R. Berkley Corporation (MX:WRB) valued at $9,486,723 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 148,763 shares of W. R. Berkley Corporation. This represents a change in shares of -3.79% 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)
2026-05-13 2026-03-31 13F BERKLEY W R COM 084423102 143,131 -5,632 -3.79 9,487 -9.06 0.0117
2026-02-13 2025-12-31 13F BERKLEY W R COM 084423102 148,763 -20,209 -11.96 10,431 -19.43 0.0126
2025-11-13 2025-09-30 13F BERKLEY W R COM 084423102 168,972 -4,073 -2.35 12,947 1.83 0.0154
2025-08-12 2025-06-30 13F BERKLEY W R COM 084423102 173,045 8,626 5.25 12,714 8.66 0.0164
2025-05-13 2025-03-31 13F BERKLEY W R COM 084423102 164,419 3,665 2.28 11,700 24.38 0.0167
2025-02-11 2024-12-31 13F BERKLEY W R COM 084423102 160,754 -35,092 -17.92 9,407 -15.33 0.0129
2024-11-14 2024-09-30 13F BERKLEY W R COM 084423102 195,846 64,163 48.73 11,110 7.37 0.0157
2024-08-13 2024-06-30 13F BERKLEY W R COM 084423102 131,683 -17,622 -11.80 10,348 -21.64 0.0155
2024-05-14 2024-03-31 13F BERKLEY W R COM 084423102 149,305 -153,276 -50.66 13,205 -38.49 0.0186
2024-02-13 2023-12-31 13F BERKLEY W R COM 084423102 302,581 117,954 63.89 21,466 83.13 0.0324
2023-11-13 2023-09-30 13F BERKLEY W R COM 084423102 184,627 -1,581 -0.85 11,722 5.69 0.0184
2023-08-11 2023-06-30 13F BERKLEY W R COM 084423102 186,208 -8,130 -4.18 11,091 -14.82 0.0162
2023-05-12 2023-03-31 13F BERKLEY W R COM 084423102 194,338 -20,381 -9.49 13,020 -16.44 0.0204
2023-02-14 2022-12-31 13F BERKLEY W R COM 084423102 214,719 18,564 9.46 15,582 22.25 0.0263
2022-11-04 2022-09-30 13F BERKLEY W R COM 084423102 196,155 -180,525 -47.93 12,746 -50.41 0.0216
2022-08-15 2022-06-30 13F BERKLEY W R COM 084423102 376,680 11,881 3.26 25,704 5.81 0.0408
2022-05-13 2022-03-31 13F BERKLEY W R COM 084423102 364,799 201,514 123.41 24,292 85.49 0.0323
2022-02-14 2021-12-31 13F BERKLEY W R COM 084423102 163,285 -46,052 -22.00 13,096 -13.60 0.0163
2021-11-15 2021-09-30 13F BERKLEY W R COM 084423102 209,337 58,543 38.82 15,158 35.05 0.0212
2021-08-16 2021-06-30 13F BERKLEY W R COM 084423102 150,794 23,863 18.80 11,224 17.36 0.0154
2021-05-12 2021-03-31 13F BERKLEY W R COM 084423102 126,931 20,960 19.78 9,564 35.89 0.0143
2021-08-16 2020-12-31 13F/A-1 BERKLEY W R COM 0066 084423102 105,971 105,701 39,148.52 7,038 41,300.00 0.0118
2021-02-16 2020-12-31 13F BERKLEY W R COM 084423102 105,971 105,701 7,038 0.0118
2021-08-05 2020-09-30 13F/A-1 BERKLEY W R COM 084423102 270 249 1,185.71 17 1,600.00 0.0025
2020-11-16 2020-09-30 13F BERKLEY W R COM 084423102 109,679 109,658 6,707 0.0127
2021-08-05 2020-06-30 13F/A-1 BERKLEY W R COM 0057 084423102 21 3 16.67 1 0.00 0.0002
2020-08-12 2020-06-30 13F BERKLEY W R COM 084423102 111,349 111,331 6,379 0.0123
2021-08-05 2020-03-31 13F/A-1 BERKLEY W R COM 0052 084423102 18 -125,924 -99.99 1 -99.99 0.0003
2020-05-12 2020-03-31 13F BERKLEY W R COM 084423102 135,349 9,407 7,062 0.0156
2020-02-11 2019-12-31 13F BERKLEY W R COM 084423102 125,942 -25,208 -16.68 8,703 -20.28 0.0129
2019-11-13 2019-09-30 13F BERKLEY W R COM 084423102 151,150 60,460 66.67 10,917 82.59 0.0173
2019-08-08 2019-06-30 13F BERKLEY W R COM 084423102 90,690 33,895 59.68 5,979 24.25 0.0093
2019-05-15 2019-03-31 13F BERKLEY W R COM 084423102 56,795 -30,943 -35.27 4,812 -25.80 0.0080
2019-02-07 2018-12-31 13F W R BERKLEY COM 084423102 87,738 -4,510 -4.89 6,485 -12.04 0.0114
2018-11-07 2018-09-30 13F W R BERKLEY COM 084423102 92,248 140 0.15 7,373 10.54 0.0109
2018-08-13 2018-06-30 13F W R BERKLEY COM 084423102 92,108 31,126 51.04 6,670 50.46 0.0100
2018-05-04 2018-03-31 13F W R BERKLEY COM 084423102 60,982 -794 -1.29 4,433 0.16 0.0068
2018-02-13 2017-12-31 13F BERKLEY W R COM 084423102 61,776 980 1.61 4,426 9.07 0.0060
2017-11-30 2017-09-30 13F/A-1 BERKLEY W R COM 084423102 60,796 362 0.60 4,058 -2.92 0.0443
2017-08-07 2017-06-30 13F BERKLEY W R COM 084423102 60,434 946 1.59 4,180 -0.52 0.0062
2017-05-10 2017-03-31 13F BERKLEY W R COM 084423102 59,488 2,960 5.24 4,202 11.76 0.0066
2017-02-07 2016-12-31 13F BERKLEY W R COM 084423102 56,528 -1,660 -2.85 3,760 11.87 0.0060
2016-11-04 2016-09-30 13F BERKLEY W R COM 084423102 58,188 -1,170 -1.97 3,361 -5.51 0.0056
2016-08-09 2016-06-30 13F BERKLEY W R COM 084423102 59,358 850 1.45 3,557 8.18 0.0060
2016-05-09 2016-03-31 13F BERKLEY W R COM 084423102 58,508 -1,500 -2.50 3,288 0.09 0.0059
2016-02-12 2015-12-31 13F BERKLEY W R COM 084423102 60,008 700 1.18 3,285 1.86 0.0059
2015-11-10 2015-09-30 13F BERKLEY W R COM 084423102 59,308 -4,540 -7.11 3,225 -2.74 0.0064
2015-08-06 2015-06-30 13F BERKLEY W R COM 084423102 63,848 -17,900 -21.90 3,316 -19.69 0.0059
2015-05-01 2015-03-31 13F BERKLEY W R COM 084423102 81,748 -61,600 -42.97 4,129 -43.81 0.0072
2015-02-06 2014-12-31 13F BERKLEY W R COM 084423102 143,348 -116,800 -44.90 7,348 -40.91 0.0133
2014-11-12 2014-09-30 13F BERKLEY W R COM 084423102 260,148 -64,529 -19.87 12,435 -17.30 0.0234
2014-08-13 2014-06-30 13F BERKLEY W R COM 084423102 324,677 30,829 10.49 15,036 22.94 0.0265
2014-05-14 2014-03-31 13F BERKLEY W R COM 084423102 293,848 19,700 7.19 12,230 2.82 0.0228
2014-02-11 2013-12-31 13F BERKLEY W R COM 084423102 274,148 19,900 7.83 11,895 9.16 0.0236
2013-11-07 2013-09-30 13F BERKLEY W R COM 084423102 254,248 42,801 20.24 10,897 26.12 0.0232
2013-08-07 2013-06-30 13F BERKLEY W R COM 084423102 211,447 211,447 8,640 0.0191
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.