WR伯克利公司
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionShell Asset Management Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Shell Asset Management Co closes position in WRB / W. R. Berkley Corporation

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 0 shares of W. R. Berkley Corporation (US:WRB) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 5,781 shares of W. R. Berkley Corporation. The current value of the position is $0 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)
2025-11-07 2025-09-30 13F BERKLEY W R COM 084423102 0 -100.00 0
2025-07-23 2025-06-30 13F BERKLEY W R COM 084423102 5,781 0 0.00 0 0.0147
2025-05-14 2025-03-31 13F BERKLEY W R COM 084423102 5,781 -238 -3.95 0 0.0195
2025-02-14 2024-12-31 13F BERKLEY W R COM 084423102 6,019 0 0.00 0 0.0154
2024-11-07 2024-09-30 13F BERKLEY W R COM 084423102 6,019 1,925 47.02 0 0.0150
2024-07-25 2024-03-31 13F BERKLEY W R COM 084423102 4,094 4,094 0 0.0147
2021-11-04 2021-09-30 13F BERKLEY W R COM 084423102 0 -441 -100.00 0 -100.00
2021-08-12 2021-06-30 13F BERKLEY W R COM 084423102 441 -400 -47.56 33 -47.62 0.0006
2021-05-10 2021-03-31 13F BERKLEY W R COM 084423102 841 -423 -33.47 63 -25.00 0.0013
2021-02-16 2020-12-31 13F BERKLEY W R COM 084423102 1,264 -58,514 -97.89 84 -97.70 0.0017
2020-11-13 2020-09-30 13F BERKLEY W R COM 084423102 59,778 -6,061 -9.21 3,655 -3.10 0.0850
2020-08-10 2020-06-30 13F BERKLEY W R COM 084423102 65,839 8,452 14.73 3,772 25.99 0.0942
2020-05-11 2020-03-31 13F BERKLEY W R COM 084423102 57,387 -1,419 -2.41 2,994 -26.31 0.0834
2020-02-13 2019-12-31 13F BERKLEY W R COM 084423102 58,806 -2,471 -4.03 4,063 -8.20 0.0875
2019-11-12 2019-09-30 13F BERKLEY W R COM 084423102 61,277 -14,283 -18.90 4,426 -11.16 0.1011
2019-08-12 2019-06-30 13F BERKLEY W R COM 084423102 75,560 31,839 72.82 4,982 34.50 0.1102
2019-05-09 2019-03-31 13F BERKLEY W R COM 084423102 43,721 77 0.18 3,704 14.82 0.0817
2019-02-13 2018-12-31 13F W R BERKLEY COM 084423102 43,644 499 1.16 3,226 -6.47 0.0804
2018-11-13 2018-09-30 13F W R BERKLEY COM 084423102 43,145 -343 -0.79 3,449 9.53 0.0681
2018-08-10 2018-06-30 13F W R BERKLEY COM 084423102 43,488 -1,783 -3.94 3,149 -4.31 0.0646
2018-05-14 2018-03-31 13F W R BERKLEY COM 084423102 45,271 0 0.00 3,291 1.45 0.0655
2018-02-09 2017-12-31 13F BERKLEY W R COM 084423102 45,271 -261 -0.57 3,244 6.75 0.0644
2017-10-20 2017-09-30 13F/A-1 BERKLEY W R COM 084423102 45,532 -335 -0.73 3,039 -4.22 0.0676
2017-10-20 2017-06-30 13F/A-1 BERKLEY W R COM 084423102 45,867 869 1.93 3,173 -0.16 0.4870
2017-10-20 2017-03-31 13F/A-1 BERKLEY W R COM 084423102 44,998 2,341 5.49 3,178 12.02 0.5015
2017-10-20 2016-12-31 13F/A-1 BERKLEY W R COM 084423102 42,657 -19,839 -31.74 2,837 -21.41 0.5004
2017-10-20 2016-09-30 13F/A-1 BERKLEY W R COM 084423102 62,496 62,496 3,610 0.5676
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.