WR伯克利公司
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionPinnacle Bancorp, Inc.
Latest Disclosed Ownership829 shares
Latest Disclosed Value $ 54,946
Pinnacle Bancorp, Inc. ownership in WRB / W. R. Berkley Corporation

On April 22, 2026 - Pinnacle Bancorp, Inc. filed a 13F-HR form disclosing ownership of 829 shares of W. R. Berkley Corporation (MX:WRB) valued at $54,946 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 829 shares of W. R. Berkley Corporation. This represents a change in shares of 0.00% 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)
2026-04-22 2026-03-31 13F Berkley W R Corp Common COM 084423102 829 0 0.00 55 -6.90 0.0162
2026-01-22 2025-12-31 13F Berkley W R Corp Common COM 084423102 829 0 0.00 58 -7.94 0.0170
2025-10-24 2025-09-30 13F Berkley W R Corp Common COM 084423102 829 0 0.00 64 5.00 0.0188
2025-07-11 2025-06-30 13F Berkley W R Corp Common COM 084423102 829 0 0.00 61 3.45 0.0188
2025-04-23 2025-03-31 13F Berkley W R Corp Common COM 084423102 829 0 0.00 59 20.83 0.0192
2025-01-14 2024-12-31 13F Berkley W R Corp Common COM 084423102 829 0 0.00 49 2.13 0.0158
2024-10-09 2024-09-30 13F Berkley W R Corp Common COM 084423102 829 276 49.91 47 9.30 0.0126
2024-07-15 2024-06-30 13F Berkley W R Corp Common COM 084423102 553 0 0.00 43 -10.42 0.0128
2024-04-16 2024-03-31 13F Berkley W R Corp Common COM 084423102 553 0 0.00 49 23.08 0.0145
2024-01-25 2023-12-31 13F Berkley W R Corp Common COM 084423102 553 0 0.00 39 11.43 0.0128
2023-10-18 2023-09-30 13F Berkley W R Corp Common COM 084423102 553 0 0.00 35 9.38 0.0125
2023-07-14 2023-06-30 13F Berkley W R Corp Common COM 084423102 553 0 0.00 33 -5.88 0.0113
2023-04-14 2023-03-31 13F Berkley W R Corp Common COM 084423102 553 0 0.00 34 0.0126
2023-01-24 2022-12-31 13F Berkley W R Corp Common COM 084423102 553 -279 -33.53 0 -100.00 0.0154
2022-10-25 2022-09-30 13F Berkley W R Corp Common COM 084423102 832 0 0.00 54 -5.26 0.0233
2022-07-12 2022-06-30 13F Berkley W R Corp Common COM 084423102 832 0 0.00 57 3.64 0.0235
2022-04-14 2022-03-31 13F Berkley W R Corp Common COM 084423102 832 277 49.91 55 19.57 0.0191
2022-01-19 2021-12-31 13F Berkley W R Corp Common COM 084423102 555 0 0.00 46 12.20 0.0163
2021-10-12 2021-09-30 13F Berkley W R Corp Common COM 084423102 555 0 0.00 41 0.00 0.0164
2021-07-15 2021-06-30 13F Berkley W R Corp Common COM 084423102 555 0 0.00 41 -2.38 0.0187
2021-04-26 2021-03-31 13F Berkley W R Corp Common COM 084423102 555 0 0.00 42 13.51 0.0204
2021-01-13 2020-12-31 13F Berkley W R Corp Common COM 084423102 555 39 7.56 37 15.63 0.0228
2020-10-13 2020-09-30 13F Berkley W R Corp Common COM 084423102 516 51 10.97 32 18.52 0.0226
2020-07-07 2020-06-30 13F Berkley W R Corp Common COM 084423102 465 0 0.00 27 12.50 0.0201
2020-04-09 2020-03-31 13F Berkley W R Corp Common COM 084423102 465 0 0.00 24 -25.00 0.0205
2020-01-10 2019-12-31 13F Berkley W R Corp Common COM 084423102 465 25 5.68 32 0.00 0.0222
2019-10-08 2019-09-30 13F Berkley W R Corp Common COM 084423102 440 0 0.00 32 10.34 0.0183
2019-07-08 2019-06-30 13F Berkley W R Corp Common COM 084423102 440 134 43.79 29 11.54 0.0163
2019-04-05 2019-03-31 13F Berkley W R Corp Common COM 084423102 306 0 0.00 26 13.04 0.0151
2019-03-20 2018-12-31 13F Berkley W R Corp Common COM 084423102 306 306 23 0.0141
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.