W. R. Berkley Corporation
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionStansberry Asset Management, Llc
Latest Disclosed Ownership193,328 shares
Latest Disclosed Value $ 12,813,788
Stansberry Asset Management, Llc reports 35.80% decrease in ownership of WRB / W. R. Berkley Corporation

On May 15, 2026 - Stansberry Asset Management, Llc filed a 13F-HR form disclosing ownership of 193,328 shares of W. R. Berkley Corporation (US:WRB) valued at $12,813,780 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 301,143 shares of W. R. Berkley Corporation. This represents a change in shares of -35.80% during the quarter. The current value of the position is $12,622,385 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)
2026-05-15 2026-03-31 13F BERKLEY W R COM 084423102 193,328 -107,815 -35.80 12,814 -39.32 1.3173
2026-02-17 2025-12-31 13F BERKLEY W R COM 084423102 301,143 -11,062 -3.54 21,116 -11.73 2.1388
2025-11-14 2025-09-30 13F BERKLEY W R COM 084423102 312,205 -24,017 -7.14 23,921 -3.16 2.5024
2025-08-14 2025-06-30 13F BERKLEY W R COM 084423102 336,222 -89,917 -21.10 24,702 -18.54 2.6995
2025-05-14 2025-03-31 13F BERKLEY W R COM 084423102 426,139 13,336 3.23 30,324 25.53 3.6419
2025-02-14 2024-12-31 13F BERKLEY W R COM 084423102 412,803 594 0.14 24,157 3.31 3.1361
2024-11-14 2024-09-30 13F BERKLEY W R COM 084423102 412,209 137,952 50.30 23,385 8.51 2.9205
2024-08-14 2024-06-30 13F BERKLEY W R COM 084423102 274,257 9,959 3.77 21,551 -7.80 2.8263
2024-05-15 2024-03-31 13F BERKLEY W R COM 084423102 264,298 27,619 11.67 23,375 39.65 3.1541
2024-02-14 2023-12-31 13F BERKLEY W R COM 084423102 236,679 4,328 1.86 16,738 13.46 2.7811
2023-11-14 2023-09-30 13F BERKLEY W R COM 084423102 232,351 9,266 4.15 14,752 11.03 2.5820
2023-08-17 2023-06-30 13F/A-1 BERKLEY W R COM 084423102 223,085 138,163 162.69 13,287 151.30 2.4305
2023-08-11 2023-06-30 13F BERKLEY W R COM 084423102 223,085 138,163 13,287 2.5560
2023-05-12 2023-03-31 13F BERKLEY W R COM 084423102 84,922 17,771 26.46 5,287 8.50 1.0246
2023-02-14 2022-12-31 13F BERKLEY W R COM 084423102 67,151 2,922 4.55 4,873 17.48 1.0062
2022-11-14 2022-09-30 13F BERKLEY W R COM 084423102 64,229 -26,041 -28.85 4,148 -32.68 0.8960
2022-08-15 2022-06-30 13F BERKLEY W R COM 084423102 90,270 -58,094 -39.16 6,162 -37.63 1.3114
2022-05-16 2022-03-31 13F BERKLEY W R COM 084423102 148,364 58,252 64.64 9,879 33.07 1.6035
2022-02-14 2021-12-31 13F BERKLEY W R COM 084423102 90,112 15,042 20.04 7,424 35.13 1.1894
2021-11-15 2021-09-30 13F BERKLEY W R COM 084423102 75,070 3,202 4.46 5,494 2.71 1.1046
2021-08-16 2021-06-30 13F BERKLEY W R COM 084423102 71,868 4,034 5.95 5,349 4.66 1.2924
2021-05-17 2021-03-31 13F BERKLEY W R COM 084423102 67,834 780 1.16 5,111 14.75 1.3515
2021-02-16 2020-12-31 13F BERKLEY W R COM 084423102 67,054 3,347 5.25 4,454 14.32 1.2505
2020-11-16 2020-09-30 13F BERKLEY W R COM 084423102 63,707 -1,795 -2.74 3,896 3.81 1.3319
2020-08-14 2020-06-30 13F BERKLEY W R COM 084423102 65,502 61,344 1,475.32 3,753 1,629.49 1.6149
2020-05-15 2020-03-31 13F BERKLEY W R COM 084423102 4,158 -99,856 -96.00 217 -96.98 0.1141
2020-02-14 2019-12-31 13F BERKLEY W R COM 084423102 104,014 13,737 15.22 7,187 10.21 2.9254
2019-11-14 2019-09-30 13F BERKLEY W R COM 084423102 90,277 6,277 7.47 6,521 17.75 2.8821
2019-08-14 2019-06-30 13F BERKLEY W R COM 084423102 84,000 24,478 41.12 5,538 9.82 2.1802
2019-05-15 2019-03-31 13F BERKLEY W R COM 084423102 59,522 -5,833 -8.93 5,043 4.41 1.7301
2019-02-14 2018-12-31 13F W R BERKLEY COM 084423102 65,355 -4,427 -6.34 4,830 -13.41 1.5190
2018-11-13 2018-09-30 13F W R BERKLEY COM 084423102 69,782 -761 -1.08 5,578 9.20 1.5644
2018-08-13 2018-06-30 13F W R BERKLEY COM 084423102 70,543 8,270 13.28 5,108 12.83 1.6920
2018-05-14 2018-03-31 13F W R BERKLEY COM 084423102 62,273 24,684 65.67 4,527 68.10 2.2225
2018-02-12 2017-12-31 13F BERKLEY W R COM 084423102 37,589 37,589 2,693 1.1588
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.