W. R. Berkley Corporation
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionStrategy Asset Managers Llc
Latest Disclosed Ownership5,352 shares
Latest Disclosed Value $ 354,737
Strategy Asset Managers Llc reports 56.27% decrease in ownership of WRB / W. R. Berkley Corporation

On May 12, 2026 - Strategy Asset Managers Llc filed a 13F-HR form disclosing ownership of 5,352 shares of W. R. Berkley Corporation (MX:WRB) valued at $354,737 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 12,239 shares of W. R. Berkley Corporation. This represents a change in shares of -56.27% 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)
2026-05-12 2026-03-31 13F BERKLEY W R COM 084423102 5,352 -6,887 -56.27 355 -58.74 0.0582
2026-02-11 2025-12-31 13F BERKLEY W R COM 084423102 12,239 -123 -0.99 858 -9.40 0.1411
2025-11-04 2025-09-30 13F BERKLEY W R COM 084423102 12,362 7,041 132.32 947 142.82 0.1704
2025-08-07 2025-06-30 13F BERKLEY W R COM 084423102 5,321 -113 -2.08 391 1.04 0.0730
2025-05-09 2025-03-31 13F BERKLEY W R COM 084423102 5,434 5,434 387 0.0797
2024-11-08 2024-09-30 13F BERKLEY W R COM 084423102 0 -7,271 -100.00 0 -100.00
2024-08-02 2024-06-30 13F BERKLEY W R COM 084423102 7,271 7,271 433 0.0961
2023-11-09 2023-09-30 13F BERKLEY W R COM 084423102 0 -7,271 -100.00 0 -100.00
2023-08-25 2023-06-30 13F BERKLEY W R COM 084423102 7,271 536 7.96 433 3.34 0.0961
2023-05-02 2023-03-31 13F BERKLEY W R COM 084423102 6,735 -2,934 -30.34 419 0.1022
2023-01-13 2022-12-31 13F BERKLEY W R COM 084423102 9,669 -17 -0.18 1 -100.00 0.1783
2022-10-11 2022-09-30 13F BERKLEY W R COM 084423102 9,686 5,728 144.72 626 131.85 0.1700
2022-07-13 2022-06-30 13F BERKLEY W R COM 084423102 3,958 -289 -6.80 270 -4.59 0.0831
2022-04-11 2022-03-31 13F BERKLEY W R COM 084423102 4,247 4,247 283 0.0612
2021-12-14 2021-09-30 13F BERKLEY W R COM 084423102 0 -6,303 -100.00 0 -100.00
2021-08-04 2021-06-30 13F BERKLEY W R COM 084423102 6,303 -520 -7.62 469 -8.75 0.0992
2021-05-12 2021-03-31 13F BERKLEY W R COM 084423102 6,823 180 2.71 514 16.55 0.1178
2021-02-10 2020-12-31 13F BERKLEY W R COM 084423102 6,643 -713 -9.69 441 -2.00 0.1053
2020-11-03 2020-09-30 13F BERKLEY W R COM 084423102 7,356 -555 -7.02 450 -0.66 0.1167
2020-08-10 2020-06-30 13F BERKLEY W R COM 084423102 7,911 56 0.71 453 10.49 0.1214
2020-05-14 2020-03-31 13F BERKLEY W R COM 084423102 7,855 7,855 410 0.1320
2019-08-13 2019-06-30 13F BERKLEY W R Common Stock 084423102 0 -780 -100.00 0 -100.00
2019-05-08 2019-03-31 13F BERKLEY W R Common Stock 084423102 780 780 66 0.0148
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.