WR伯克利公司
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionBokf, Na
Latest Disclosed Ownership110 shares
Latest Disclosed Value $ 7,291
Bokf, Na reports 62.96% decrease in ownership of WRB / W. R. Berkley Corporation

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 110 shares of W. R. Berkley Corporation (MX:WRB) valued at $7,291 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 297 shares of W. R. Berkley Corporation. This represents a change in shares of -62.96% 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 WR BERKLEY common 084423102 110 -187 -62.96 7 -65.00 0.0001
2026-02-03 2025-12-31 13F WR BERKLEY common 084423102 297 77 35.00 21 25.00 0.0003
2025-11-13 2025-09-30 13F WR BERKLEY common 084423102 220 0 0.00 17 0.00 0.0003
2025-08-12 2025-06-30 13F WR BERKLEY common 084423102 220 0 0.00 16 6.67 0.0003
2025-05-13 2025-03-31 13F WR BERKLEY common 084423102 220 -1 -0.45 16 25.00 0.0003
2025-02-14 2024-12-31 13F WR BERKLEY common 084423102 221 0 0.00 13 0.00 0.0002
2024-11-14 2024-09-30 13F WR BERKLEY common 084423102 221 74 50.34 13 9.09 0.0002
2024-08-08 2024-06-30 13F BERKLEY W R COM 084423102 147 0 0.00 12 -8.33 0.0002
2024-05-15 2024-03-31 13F BERKLEY W R COM 084423102 147 -8 -5.16 13 20.00 0.0002
2024-02-14 2023-12-31 13F BERKLEY W R COM 084423102 155 0 0.00 11 0.00 0.0002
2023-11-14 2023-09-30 13F BERKLEY W R COM 084423102 155 147 1,837.50 10 0.0002
2023-08-21 2023-06-30 13F BERKLEY W R COM 084423102 8 -30 -78.95 0 -100.00 0.0000
2023-05-11 2023-03-31 13F BERKLEY W R COM 084423102 38 38 2 0.0000
2021-04-21 2021-03-31 13F BERKLEY W R COM 084423102 0 -4,244 -100.00 0 -100.00
2021-02-12 2020-12-31 13F BERKLEY W R COM 084423102 4,244 4,244 282 0.0054
2018-08-13 2018-06-30 13F W R BERKLEY COM 084423102 0 -9,648 -100.00 0 -100.00
2018-05-14 2018-03-31 13F W R BERKLEY COM 084423102 9,648 -2,038 -17.44 702 -16.23 0.0199
2018-02-14 2017-12-31 13F BERKLEY W R COM 084423102 11,686 2,601 28.63 838 38.06 0.0231
2017-11-14 2017-09-30 13F BERKLEY W R COM 084423102 9,085 -6 -0.07 607 -3.50 0.0176
2017-08-14 2017-06-30 13F BERKLEY W R COM 084423102 9,091 182 2.04 629 0.00 0.0198
2017-05-15 2017-03-31 13F BERKLEY W R COM 084423102 8,909 934 11.71 629 18.68 0.0196
2017-02-14 2016-12-31 13F BERKLEY W R COM 084423102 7,975 551 7.42 530 23.54 0.0174
2016-11-10 2016-09-30 13F BERKLEY W R COM 084423102 7,424 648 9.56 429 5.67 0.0142
2016-08-12 2016-06-30 13F BERKLEY W R COM 084423102 6,776 239 3.66 406 10.63 0.0143
2016-05-13 2016-03-31 13F BERKLEY W R COM 084423102 6,537 -743 -10.21 367 -7.79 0.0133
2016-02-09 2015-12-31 13F BERKLEY W R COM 084423102 7,280 366 5.29 398 5.85 0.0144
2015-11-13 2015-09-30 13F BERKLEY W R COM 084423102 6,914 189 2.81 376 7.74 0.0142
2015-08-13 2015-06-30 13F BERKLEY W R COM 084423102 6,725 46 0.69 349 3.56 0.0118
2015-05-14 2015-03-31 13F BERKLEY W R COM 084423102 6,679 6,679 0.00 337 0.0113
2015-02-12 2014-12-31 13F BERKLEY W R COM 084423102 0 -6,806 -100.00 0 -100.00
2014-11-13 2014-09-30 13F BERKLEY W R COM 084423102 6,806 -431 -5.96 326 -2.69 0.0109
2014-08-14 2014-06-30 13F BERKLEY W R COM 084423102 7,237 -9,798 -57.52 335 -52.75 0.0107
2014-05-14 2014-03-31 13F BERKLEY W R COM 084423102 17,035 -6,827 -28.61 709 -31.56 0.0235
2014-02-14 2013-12-31 13F BERKLEY W R COM 084423102 23,862 23,862 1,036 0.0347
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.