WR 버클리 공사
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionFmr Llc
Latest Disclosed Ownership1,389,362 shares
Latest Disclosed Value $ 92,086,925
Fmr Llc reports 9.44% increase in ownership of WRB / W. R. Berkley Corporation

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 1,389,362 shares of W. R. Berkley Corporation (MX:WRB) valued at $92,086,925 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,269,533 shares of W. R. Berkley Corporation. This represents a change in shares of 9.44% 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)
2026-05-15 2026-03-31 13F BERKLEY W R COM 084423102 1,389,362 119,829 9.44 92,087 3.45 0.0010
2026-02-17 2025-12-31 13F BERKLEY W R COM 084423102 1,269,533 980,906 339.85 89,020 302.55 0.0045
2025-11-13 2025-09-30 13F BERKLEY W R COM 084423102 288,627 97,684 51.16 22,115 57.64 0.0011
2025-08-14 2025-06-30 13F BERKLEY W R COM 084423102 190,943 41,855 28.07 14,029 32.23 0.0008
2025-05-12 2025-03-31 13F BERKLEY W R COM 084423102 149,088 15,551 11.65 10,609 35.77 0.0007
2025-02-13 2024-12-31 13F BERKLEY W R COM 084423102 133,537 16,770 14.36 7,815 17.96 0.0005
2024-11-13 2024-09-30 13F BERKLEY W R COM 084423102 116,767 47,515 68.61 6,624 21.74 0.0004
2024-08-13 2024-06-30 13F BERKLEY W R COM 084423102 69,252 -9,879 -12.48 5,442 -22.25 0.0003
2024-05-13 2024-03-31 13F BERKLEY W R COM 084423102 79,131 -84,723 -51.71 6,998 -39.60 0.0005
2024-02-13 2023-12-31 13F BERKLEY W R COM 084423102 163,854 -27,447 -14.35 11,588 -4.59 0.0009
2023-11-13 2023-09-30 13F BERKLEY W R COM 084423102 191,301 -47,703 -19.96 12,146 -14.68 0.0010
2023-08-11 2023-06-30 13F BERKLEY W R COM 084423102 239,004 -437,880 -64.69 14,235 -66.22 0.0012
2023-08-11 2023-03-31 13F/A-1 BERKLEY W R COM 084423102 676,884 -342,654 -33.61 42,143 -43.04 0.0039
2023-05-11 2023-03-31 13F BERKLEY W R COM 084423102 676,884 -342,654 42,143 0.0008
2023-02-13 2022-12-31 13F BERKLEY W R COM 084423102 1,019,538 -59,066 -5.48 73,988 6.22 0.0073
2022-11-10 2022-09-30 13F BERKLEY W R COM 084423102 1,078,604 213,251 24.64 69,656 17.92 0.0073
2022-08-12 2022-06-30 13F BERKLEY W R COM 084423102 865,353 232,904 36.83 59,070 40.26 0.0059
2022-05-13 2022-03-31 13F BERKLEY W R COM 084423102 632,449 614,274 3,379.77 42,115 2,713.29 0.0034
2022-02-14 2021-12-31 13F BERKLEY W R COM 084423102 18,175 -115 -0.63 1,497 11.88 0.0001
2022-02-14 2021-09-30 13F/A-1 BERKLEY W R COM 084423102 18,290 -459 -2.45 1,338 -4.09 0.0001
2021-11-15 2021-09-30 13F BERKLEY W R COM 084423102 18,290 -459 1,338 0.0000
2021-08-13 2021-06-30 13F BERKLEY W R COM 084423102 18,749 -37,526 -66.68 1,395 -67.11 0.0001
2021-05-14 2021-03-31 13F BERKLEY W R COM 084423102 56,275 -1,090 -1.90 4,241 11.31 0.0004
2021-02-08 2020-12-31 13F BERKLEY W R COM 084423102 57,365 34,569 151.65 3,810 173.31 0.0003
2020-11-13 2020-09-30 13F BERKLEY W R COM 084423102 22,796 -188 -0.82 1,394 5.85 0.0001
2020-08-24 2020-06-30 13F/A-1 BERKLEY W R COM 084423102 22,984 -3,688 -13.83 1,317 -5.32 0.0001
2020-08-13 2020-06-30 13F BERKLEY W R COM 084423102 22,984 -3,688 1,317 32.3548
2020-05-14 2020-03-31 13F BERKLEY W R COM 084423102 26,672 20,041 302.23 1,391 203.71 0.0002
2020-02-07 2019-12-31 13F BERKLEY W R COM 084423102 6,631 913 15.97 458 10.90 0.0001
2019-11-13 2019-09-30 13F BERKLEY W R COM 084423102 5,718 -23 -0.40 413 8.97 0.0000
2019-08-13 2019-06-30 13F BERKLEY W R COM 084423102 5,741 1,760 44.21 379 12.13 0.0000
2019-05-13 2019-03-31 13F BERKLEY W R COM 084423102 3,981 -287 -6.72 338 7.30 0.0000
2019-02-13 2018-12-31 13F W R BERKLEY COM 084423102 4,268 271 6.78 315 -1.25 0.0000
2018-11-09 2018-09-30 13F W R BERKLEY COM 084423102 3,997 244 6.50 319 17.28 0.0000
2018-08-10 2018-06-30 13F W R BERKLEY COM 084423102 3,753 596 18.88 272 18.78 0.0000
2018-05-14 2018-03-31 13F W R BERKLEY COM 084423102 3,157 74 2.40 229 3.62 0.0000
2018-02-12 2017-12-31 13F BERKLEY W R COM 084423102 3,083 -30 -0.96 221 6.25 0.0000
2017-11-13 2017-09-30 13F BERKLEY W R COM 084423102 3,113 0 0.00 208 -3.26 0.0000
2017-08-29 2017-06-30 13F/A-1 BERKLEY W R COM 084423102 3,113 -21,117 -87.15 215 -87.43 0.0000
2017-08-11 2017-06-30 13F BERKLEY W R COM 084423102 3,113 -21,117 215
2017-05-11 2017-03-31 13F BERKLEY W R COM 084423102 24,230 -800 -3.20 1,711 2.76 0.0002
2017-02-10 2016-12-31 13F BERKLEY W R COM 084423102 25,030 0 0.00 1,665 15.15 0.0002
2016-11-14 2016-09-30 13F BERKLEY W R COM 084423102 25,030 -197,500 -88.75 1,446 -89.16 0.0002
2016-08-11 2016-06-30 13F BERKLEY W R COM 084423102 222,530 0 0.00 13,334 6.62 0.0018
2016-05-16 2016-03-31 13F BERKLEY W R COM 084423102 222,530 -116,400 -34.34 12,506 -32.60 0.0017
2016-02-12 2015-12-31 13F BERKLEY W R COM 084423102 338,930 -5,470 -1.59 18,556 -0.90 0.0025
2015-11-10 2015-09-30 13F BERKLEY W R COM 084423102 344,400 0 0.00 18,725 4.70 0.0027
2015-08-25 2015-06-30 13F/A-1 BERKLEY W R COM 084423102 344,400 129,197 60.03 17,885 64.54 0.0023
2015-08-13 2015-06-30 13F BERKLEY W R COM 084423102 344,400 17,885
2015-05-14 2015-03-31 13F BERKLEY W R COM 084423102 215,203 175,803 446.20 10,870 438.12 0.0014
2015-02-17 2014-12-31 13F BERKLEY W R COM 084423102 39,400 -66,940 -62.95 2,020 -60.25 0.0003
2014-11-14 2014-09-30 13F BERKLEY W R COM 084423102 106,340 -275 -0.26 5,082 2.92 0.0007
2014-08-14 2014-06-30 13F BERKLEY W R COM 084423102 106,615 74,015 227.04 4,938 263.89 0.0007
2014-05-15 2014-03-31 13F BERKLEY W R COM 084423102 32,600 -8,100 -19.90 1,357 -23.16 0.0002
2014-02-13 2013-12-31 13F BERKLEY W R COM 084423102 40,700 -96,200 -70.27 1,766 -69.90 0.0002
2013-11-14 2013-09-30 13F BERKLEY W R COM 084423102 136,900 -39,524 -22.40 5,868 -18.60 0.0009
2013-09-24 2013-06-30 13F/A-1 BERKLEY W R COM 084423102 176,424 176,424 7,209 0.0012
2013-08-14 2013-06-30 13F BERKLEY W R COM 084423102 176,424 7,209 0.0012
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.