WR 버클리 공사
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership84,722 shares
Latest Disclosed Value $ 5,615,374
CIBC Asset Management Inc reports 2.81% increase in ownership of WRB / W. R. Berkley Corporation

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 84,722 shares of W. R. Berkley Corporation (MX:WRB) valued at $5,615,374 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 82,407 shares of W. R. Berkley Corporation. This represents a change in shares of 2.81% 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 84,722 2,315 2.81 5,615 -2.82 0.0137
2026-02-10 2025-12-31 13F BERKLEY W R COM 084423102 82,407 35,531 75.80 5,778 60.90 0.0139
2025-10-31 2025-09-30 13F BERKLEY W R COM 084423102 46,876 93 0.20 3,592 4.48 0.0104
2025-08-14 2025-06-30 13F BERKLEY W R COM 084423102 46,783 -2,896 -5.83 3,437 -2.77 0.0106
2025-05-13 2025-03-31 13F BERKLEY W R COM 084423102 49,679 -292 -0.58 3,535 20.90 0.0117
2025-01-31 2024-12-31 13F BERKLEY W R COM 084423102 49,971 2,209 4.63 2,924 7.94 0.0096
2024-11-06 2024-09-30 13F BERKLEY W R COM 084423102 47,762 17,878 59.82 2,710 15.37 0.0088
2024-08-01 2024-06-30 13F BERKLEY W R COM 084423102 29,884 -662 -2.17 2,348 -13.07 0.0084
2024-05-09 2024-03-31 13F BERKLEY W R COM 084423102 30,546 2,379 8.45 2,701 35.66 0.0094
2024-02-13 2023-12-31 13F BERKLEY W R COM 084423102 28,167 -1,016 -3.48 1,992 7.51 0.0074
2023-10-30 2023-09-30 13F BERKLEY W R COM 084423102 29,183 -431 -1.46 1,853 5.05 0.0077
2023-08-14 2023-06-30 13F BERKLEY W R COM 084423102 29,614 -359 -1.20 1,764 -5.52 0.0068
2023-05-12 2023-03-31 13F BERKLEY W R COM 084423102 29,973 -530 -1.74 1,866 -15.68 0.0074
2023-02-13 2022-12-31 13F BERKLEY W R COM 084423102 30,503 1,257 4.30 2,214 17.15 0.0093
2022-11-03 2022-09-30 13F BERKLEY W R COM 084423102 29,246 2,071 7.62 1,889 1.83 0.0083
2022-08-09 2022-06-30 13F BERKLEY W R COM 084423102 27,175 5,398 24.79 1,855 27.93 0.0075
2022-05-06 2022-03-31 13F BERKLEY W R COM 084423102 21,777 7,394 51.41 1,450 22.36 0.0051
2022-02-08 2021-12-31 13F BERKLEY W R COM 084423102 14,383 525 3.79 1,185 16.86 0.0043
2021-11-09 2021-09-30 13F BERKLEY W R COM 084423102 13,858 347 2.57 1,014 0.80 0.0041
2021-08-16 2021-06-30 13F BERKLEY W R COM 084423102 13,511 -57 -0.42 1,006 -1.57 0.0041
2021-05-14 2021-03-31 13F BERKLEY W R COM 084423102 13,568 -19,215 -58.61 1,022 -53.05 0.0043
2021-02-03 2020-12-31 13F BERKLEY W R COM 084423102 32,783 -7,162 -17.93 2,177 -10.89 0.0102
2020-11-05 2020-09-30 13F BERKLEY W R COM 084423102 39,945 -84,843 -67.99 2,443 -65.83 0.0125
2020-07-28 2020-06-30 13F BERKLEY W R COM 084423102 124,788 -26,198 -17.35 7,149 -9.24 0.0419
2020-04-30 2020-03-31 13F BERKLEY W R COM 084423102 150,986 12,566 9.08 7,877 -17.65 0.0557
2020-02-14 2019-12-31 13F BERKLEY W R COM 084423102 138,420 -15,480 -10.06 9,565 -13.95 0.0541
2019-10-30 2019-09-30 13F BERKLEY W R COM 084423102 153,900 3,892 2.59 11,116 12.40 0.0653
2019-08-05 2019-06-30 13F BERKLEY W R COM 084423102 150,008 105,510 237.11 9,890 162.33 0.0592
2019-05-06 2019-03-31 13F BERKLEY W R COM 084423102 44,498 3,963 9.78 3,770 25.83 0.0234
2019-02-12 2018-12-31 13F W R BERKLEY COM 084423102 40,535 -2,608 -6.05 2,996 -13.11 0.0220
2018-11-02 2018-09-30 13F W R BERKLEY COM 084423102 43,143 3,706 9.40 3,448 20.73 0.0213
2018-08-09 2018-06-30 13F W R BERKLEY COM 084423102 39,437 28,866 273.07 2,856 271.39 0.0178
2018-04-30 2018-03-31 13F W R BERKLEY COM 084423102 10,571 -317 -2.91 769 -1.41 0.0050
2018-02-02 2017-12-31 13F BERKLEY W R COM 084423102 10,888 -590 -5.14 780 1.83 0.0048
2017-11-06 2017-09-30 13F BERKLEY W R COM 084423102 11,478 310 2.78 766 -0.78 0.0048
2017-07-27 2017-06-30 13F BERKLEY W R COM 084423102 11,168 0 0.00 772 -2.15 0.0053
2017-05-12 2017-03-31 13F BERKLEY W R COM 084423102 11,168 -1,250 -10.07 789 -4.48 0.0054
2017-02-08 2016-12-31 13F BERKLEY W R COM 084423102 12,418 -207 -1.64 826 13.31 0.0059
2016-10-19 2016-09-30 13F BERKLEY W R COM 084423102 12,625 -178 -1.39 729 -4.95 0.0054
2016-08-02 2016-06-30 13F BERKLEY W R COM 084423102 12,803 262 2.09 767 8.79 0.0058
2016-05-09 2016-03-31 13F BERKLEY W R COM 084423102 12,541 427 3.52 705 6.33 0.0053
2016-02-02 2015-12-31 13F BERKLEY W R COM 084423102 12,114 -337 -2.71 663 -2.07 0.0055
2015-11-03 2015-09-30 13F BERKLEY W R COM 084423102 12,451 -714 -5.42 677 -1.02 0.0054
2015-08-06 2015-06-30 13F BERKLEY W R COM 084423102 13,165 -2,774 -17.40 684 -15.03 0.0048
2015-05-08 2015-03-31 13F BERKLEY W R COM 084423102 15,939 -146 -0.91 805 -2.42 0.0057
2015-02-10 2014-12-31 13F BERKLEY W R COM 084423102 16,085 -1,776 -9.94 825 -3.40 0.0055
2014-11-05 2014-09-30 13F BERKLEY W R COM 084423102 17,861 -719 -3.87 854 -0.70 0.0051
2014-08-01 2014-06-30 13F BERKLEY W R COM 084423102 18,580 -269 -1.43 860 9.69 0.0049
2014-05-09 2014-03-31 13F BERKLEY W R COM 084423102 18,849 -3,091 -14.09 784 -17.65 0.0046
2014-02-04 2013-12-31 13F BERKLEY W R COM 084423102 21,940 312 1.44 952 2.70 0.0058
2013-10-29 2013-09-30 13F BERKLEY W R COM 084423102 21,628 -1,193 -5.23 927 -0.54 0.0059
2013-10-02 2013-06-30 13F/A-1 BERKLEY W R COM 084423102 22,821 22,821 932 0.0064
2013-08-09 2013-06-30 13F BERKLEY W R COM 084423102 22,821 932 0.0064
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.