WR 버클리 공사
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionWestpac Banking Corp
Latest Disclosed Ownership373 shares
Latest Disclosed Value $ 24,722
Westpac Banking Corp reports 70.33% decrease in ownership of WRB / W. R. Berkley Corporation

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 373 shares of W. R. Berkley Corporation (MX:WRB) valued at $24,722 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,257 shares of W. R. Berkley Corporation. This represents a change in shares of -70.33% 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)
2026-05-11 2026-03-31 13F BERKLEY W R COM 084423102 373 -884 -70.33 25 -72.73 0.0009
2026-02-10 2025-12-31 13F BERKLEY W R COM 084423102 1,257 0 0.00 88 -8.33 0.0056
2025-11-14 2025-09-30 13F/A-1 W R BERKLEY COM 084423102 1,257 0 0.00 96 4.35 0.0060
2025-11-12 2025-09-30 13F W R BERKLEY COM 084423102 1,257 0 96 0.0024
2025-08-11 2025-06-30 13F BERKLEY W R COM 084423102 1,257 0 0.00 92 3.37 0.0062
2025-05-13 2025-03-31 13F BERKLEY W R COM 084423102 1,257 0 0.00 89 21.92 0.0066
2025-02-12 2024-12-31 13F BERKLEY W R COM 084423102 1,257 0 0.00 74 2.82 0.0049
2024-11-08 2024-09-30 13F BERKLEY W R COM 084423102 1,257 419 50.00 71 9.23 0.0048
2024-08-14 2024-06-30 13F/A-1 BERKLEY W R COM 084423102 838 0 0.00 66 -12.16 0.0052
2024-08-13 2024-06-30 13F BERKLEY W R COM 084423102 79 -759 66 0.0023
2024-05-09 2024-03-31 13F BERKLEY W R COM 084423102 838 316 60.54 74 105.56 0.0056
2024-02-08 2023-12-31 13F BERKLEY W R COM 084423102 522 0 0.00 37 9.09 0.0030
2023-11-13 2023-09-30 13F BERKLEY W R COM 084423102 522 0 0.00 33 6.45 0.0025
2023-08-10 2023-06-30 13F BERKLEY W R COM 084423102 522 -20,220 -97.48 31 -97.60 0.0022
2023-05-04 2023-03-31 13F BERKLEY W R COM 084423102 20,742 6,116 41.82 1,291 21.68 0.0174
2023-02-06 2022-12-31 13F BERKLEY W R COM 084423102 14,626 0 0.00 1,061 12.39 0.0157
2022-11-08 2022-09-30 13F BERKLEY W R COM 084423102 14,626 0 0.00 945 -5.41 0.0144
2022-08-10 2022-06-30 13F BERKLEY W R COM 084423102 14,626 -2,223 -13.19 998 -10.97 0.0130
2022-05-11 2022-03-31 13F BERKLEY W R COM 084423102 16,849 5,616 50.00 1,122 21.19 0.0129
2022-02-08 2021-12-31 13F BERKLEY W R COM 084423102 11,233 348 3.20 925 16.21 0.0096
2021-10-27 2021-09-30 13F BERKLEY W R COM 084423102 10,885 1,482 15.76 797 13.88 0.0085
2021-08-11 2021-06-30 13F BERKLEY W R COM 084423102 9,403 0 0.00 700 -1.27 0.0070
2021-05-13 2021-03-31 13F BERKLEY W R COM 084423102 9,403 0 0.00 709 13.46 0.0078
2021-02-11 2020-12-31 13F BERKLEY W R COM 084423102 9,403 0 0.00 625 8.71 0.0071
2020-11-10 2020-09-30 13F BERKLEY W R COM 084423102 9,403 0 0.00 575 6.69 0.0078
2020-08-12 2020-06-30 13F BERKLEY W R COM 084423102 9,403 0 0.00 539 9.80 0.0080
2020-05-14 2020-03-31 13F BERKLEY W R COM CL A 084423102 9,403 0 0.00 491 -24.50 0.0085
2020-02-11 2019-12-31 13F BERKLEY W R COM 084423102 9,403 0 0.00 650 -4.42 0.0084
2019-11-13 2019-09-30 13F BERKLEY W R COM 084423102 9,403 0 0.00 679 9.69 0.0094
2019-08-01 2019-06-30 13F BERKLEY W R COM 084423102 9,403 3,134 49.99 620 16.57 0.0095
2019-05-14 2019-03-31 13F BERKLEY W R COM 084423102 6,269 0 0.00 531 14.69 0.0088
2019-02-07 2018-12-31 13F W R BERKLEY COM 084423102 6,269 0 0.00 463 -7.58 0.0079
2018-11-13 2018-09-30 13F W R BERKLEY COM 084423102 6,269 0 0.00 501 10.60 0.0086
2018-07-18 2018-06-30 13F W R BERKLEY COM 084423102 6,269 0 0.00 454 -0.44 0.0087
2018-05-01 2018-03-31 13F W R BERKLEY COM 084423102 6,269 0 0.00 456 1.34 0.0091
2018-01-18 2017-12-31 13F BERKLEY W R COM 084423102 6,269 0 0.00 449 7.42 0.0102
2017-10-30 2017-09-30 13F BERKLEY W R COM 084423102 6,269 -226 -3.48 418 -6.90 0.0092
2017-08-09 2017-06-30 13F BERKLEY W R COM 084423102 6,495 0 0.00 449 -1.97 0.0099
2017-05-18 2017-03-31 13F/A-1 BERKLEY W R COM 084423102 6,495 0 0.00 459 5.77 0.0037
2017-05-11 2017-03-31 13F BERKLEY W R COM 084423102 3,522 198
2017-02-09 2016-12-31 13F BERKLEY W R COM 084423102 6,495 0 0.00 433 15.47 0.0041
2016-11-10 2016-09-30 13F BERKLEY W R COM 084423102 6,495 1,721 36.05 375 31.12 0.0041
2016-08-10 2016-06-30 13F BERKLEY W R COM 084423102 4,774 1,252 35.55 286 45.18 0.0031
2016-05-13 2016-03-31 13F BERKLEY W R COM 084423102 3,522 0 0.00 198 2.60 0.0022
2016-02-11 2015-12-31 13F BERKLEY W R COM 084423102 3,522 102 2.98 193 3.78 0.0021
2015-11-16 2015-09-30 13F/A-1 BERKLEY W R COM 084423102 3,420 2,682 363.41 186 386.84 0.0020
2015-11-12 2015-09-30 13F BERKLEY W R COM 084423102 3,420 186
2015-08-12 2015-06-30 13F BERKLEY W R COM 084423102 738 -5,571 -88.30 38 -89.44 0.0004
2015-05-12 2015-03-31 13F BERKLEY W R COM 084423102 6,309 -1,500 -19.21 361 -10.00 0.0031
2015-02-11 2014-12-31 13F BERKLEY W R COM 084423102 7,809 1,575 25.26 400 34.68 0.0038
2014-11-12 2014-09-30 13F BERKLEY W R COM 084423102 6,234 -2,654 -29.86 298 -27.74 0.0029
2014-08-11 2014-06-30 13F BERKLEY W R COM 084423102 8,888 0 0.00 412 11.38 0.0040
2014-05-12 2014-03-31 13F BERKLEY W R COM 084423102 8,888 0 0.00 370 -4.16 0.0039
2014-02-13 2013-12-31 13F BERKLEY W R COM 084423102 8,888 0 0.00 386 1.32 0.0044
2013-11-12 2013-09-30 13F BERKLEY W R COM 084423102 8,888 -169 -1.87 381 0.26 0.0048
2013-08-14 2013-06-30 13F BERKLEY W R COM 084423102 9,057 9,057 379 0.0058
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.