WR伯克利公司
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership8,150 shares
Latest Disclosed Value $ 540,169
Coldstream Capital Management Inc reports 73.34% decrease in ownership of WRB / W. R. Berkley Corporation

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 8,150 shares of W. R. Berkley Corporation (MX:WRB) valued at $540,169 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 30,575 shares of W. R. Berkley Corporation. This represents a change in shares of -73.34% 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)
2026-05-08 2026-03-31 13F BERKLEY W R COM 084423102 8,150 -22,425 -73.34 540 -74.80 0.0058
2026-02-09 2025-12-31 13F BERKLEY W R COM 084423102 30,575 -1,122 -3.54 2,144 -11.74 0.0276
2025-11-19 2025-09-30 13F BERKLEY W R COM 084423102 31,697 23,982 310.85 2,429 328.98 0.0327
2025-08-12 2025-06-30 13F BERKLEY W R COM 084423102 7,715 -937 -10.83 567 -7.97 0.0093
2025-05-13 2025-03-31 13F BERKLEY W R COM 084423102 8,652 -628 -6.77 616 13.26 0.0131
2025-02-14 2024-12-31 13F BERKLEY W R COM 084423102 9,280 1,874 25.30 543 28.37 0.0116
2024-11-18 2024-09-30 13F/A-1 BERKLEY W R COM 084423102 7,406 3,002 68.17 423 22.25 0.0091
2024-11-18 2024-09-30 13F BERKLEY W R COM 084423102 7,406 423
2024-08-07 2024-06-30 13F BERKLEY W R COM 084423102 4,404 236 5.66 346 -5.98 0.0084
2024-05-14 2024-03-31 13F BERKLEY W R COM 084423102 4,168 -25 -0.60 369 24.32 0.0094
2024-02-09 2023-12-31 13F BERKLEY W R COM 084423102 4,193 -52 -1.22 297 10.04 0.0083
2023-11-02 2023-09-30 13F BERKLEY W R COM 084423102 4,245 304 7.71 270 14.96 0.0088
2023-08-03 2023-06-30 13F BERKLEY W R COM 084423102 3,941 -366 -8.50 235 -12.69 0.0074
2023-05-15 2023-03-31 13F BERKLEY W R COM 084423102 4,307 164 3.96 268 -10.67 0.0090
2023-01-10 2022-12-31 13F BERKLEY W R COM 084423102 4,143 22 0.53 301 6.38 0.0110
2022-08-08 2022-06-30 13F/A-1 BERKLEY W R COM 084423102 4,121 257 6.65 282 9.73 0.0110
2022-05-11 2022-03-31 13F BERKLEY W R COM 084423102 3,864 1,205 45.32 257 17.35 0.0089
2022-02-11 2021-12-31 13F BERKLEY W R COM 084423102 2,659 2,659 219 0.0069
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.