W. R. Berkley Corporation
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionHm Payson & Co
Latest Disclosed Ownership18,104 shares
Latest Disclosed Value $ 1,199,934
Hm Payson & Co ownership in WRB / W. R. Berkley Corporation

On April 13, 2026 - Hm Payson & Co filed a 13F-HR form disclosing ownership of 18,104 shares of W. R. Berkley Corporation (US:WRB) valued at $1,199,933 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 18,104 shares of W. R. Berkley Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,182,010 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)
2026-04-13 2026-03-31 13F BERKLEY W R COM 084423102 18,104 0 0.00 1,200 -5.52 0.0090
2026-02-12 2025-12-31 13F BERKLEY W R COM 084423102 18,104 71 0.39 1,269 -8.11 0.0179
2025-10-17 2025-09-30 13F BERKLEY W R COM 084423102 18,033 0 0.00 1,382 4.31 0.0199
2025-10-17 2025-06-30 13F BERKLEY W R COM 084423102 18,033 643 3.70 1,325 7.03 0.0210
2025-04-29 2025-03-31 13F BERKLEY W R COM 084423102 17,390 847 5.12 1,237 27.79 0.0217
2025-02-07 2024-12-31 13F BERKLEY W R COM 084423102 16,543 0 0.00 968 3.20 0.0164
2024-10-28 2024-09-30 13F BERKLEY W R COM 084423102 16,543 5,514 50.00 938 8.31 0.0161
2024-08-13 2024-06-30 13F BERKLEY W R COM 084423102 11,029 -465 -4.05 867 -14.76 0.0157
2024-06-20 2024-03-31 13F BERKLEY W R COM 084423102 11,494 0 0.00 1,017 25.12 0.0189
2024-02-13 2023-12-31 13F BERKLEY W R COM 084423102 11,494 0 0.00 813 11.39 0.0168
2023-11-06 2023-09-30 13F BERKLEY W R COM 084423102 11,494 0 0.00 730 6.58 0.0171
2023-07-17 2023-06-30 13F BERKLEY W R COM 084423102 11,494 0 0.00 685 -4.34 0.0154
2023-04-18 2023-03-31 13F BERKLEY W R COM 084423102 11,494 -166 -1.42 716 -15.48 0.0172
2023-02-06 2022-12-31 13F BERKLEY W R COM 084423102 11,660 150 1.30 846 13.86 0.0211
2022-10-25 2022-09-30 13F BERKLEY W R COM 084423102 11,510 0 0.00 743 -5.47 0.0204
2022-08-15 2022-06-30 13F BERKLEY W R COM 084423102 11,510 165 1.45 786 4.11 0.0202
2022-05-12 2022-03-31 13F BERKLEY W R COM 084423102 11,345 3,782 50.01 755 21.19 0.0172
2022-02-15 2021-12-31 13F BERKLEY W R COM 084423102 7,563 0 0.00 623 12.66 0.0135
2021-11-30 2021-09-30 13F BERKLEY W R COM 084423102 7,563 6,190 450.84 553 442.16 0.0135
2021-08-17 2021-06-30 13F BERKLEY W R COM 084423102 1,373 1,373 102 0.0025
2019-07-31 2019-03-31 13F BERKLEY WR COMMON STOCK 084423102 0 -30 -100.00 0 -100.00
2019-02-15 2018-12-31 13F BERKLEY WR COMMON STOCK 084423102 30 30 200 0.0059
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.