W. R. Berkley Corporation
MX ˙ BMV ˙ US0844231029
SecurityMX:WRB / W. R. Berkley Corporation
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership8,229,654 shares
Latest Disclosed Value $ 549,199,148
Geode Capital Management, Llc reports 1.43% decrease in ownership of WRB / W. R. Berkley Corporation

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 8,229,654 shares of W. R. Berkley Corporation (MX:WRB) valued at $549,199,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 8,348,791 shares of W. R. Berkley Corporation. This represents a change in shares of -1.43% 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 WR BERKLEY COM 084423102 8,229,654 -119,137 -1.43 549,199 -6.44 0.0183
2026-02-09 2025-12-31 13F WR BERKLEY COM 084423102 8,348,791 4,536 0.05 586,983 -8.32 0.0362
2025-11-12 2025-09-30 13F WR BERKLEY COM 084423102 8,344,255 155,007 1.89 640,279 6.84 0.0408
2025-08-08 2025-06-30 13F WR BERKLEY COM 084423102 8,189,248 289,172 3.66 599,271 6.93 0.0420
2025-05-13 2025-03-31 13F WR BERKLEY COM 084423102 7,900,076 205,373 2.67 560,423 24.77 0.0441
2025-02-12 2024-12-31 13F WR BERKLEY COM 084423102 7,694,703 103,350 1.36 449,168 4.64 0.0348
2024-11-12 2024-09-30 13F WR BERKLEY COM 084423102 7,591,353 2,459,073 47.91 429,266 6.46 0.0348
2024-08-09 2024-06-30 13F WR BERKLEY COM 084423102 5,132,280 155,005 3.11 403,202 -8.33 0.0354
2024-05-13 2024-03-31 13F WR BERKLEY COM 084423102 4,977,275 180,787 3.77 439,845 29.84 0.0407
2024-02-13 2023-12-31 13F WR BERKLEY COM 084423102 4,796,488 138,934 2.98 338,765 14.67 0.0354
2023-11-13 2023-09-30 13F WR BERKLEY COM 084423102 4,657,554 88,668 1.94 295,426 8.73 0.0352
2023-08-11 2023-06-30 13F WR BERKLEY COM 084423102 4,568,886 70,222 1.56 271,715 -2.92 0.0319
2023-05-15 2023-03-31 13F WR BERKLEY COM 084423102 4,498,664 7,621 0.17 279,883 86,017.54 0.0363
2023-02-13 2022-12-31 13F WR BERKLEY COM 084423102 4,491,043 35,201 0.79 326 -99.89 0.0457
2022-11-14 2022-09-30 13F WR BERKLEY COM 084423102 4,455,842 45,231 1.03 287,820 -4.26 0.0437
2022-08-12 2022-06-30 13F WR BERKLEY COM 084423102 4,410,611 132,036 3.09 300,619 5.73 0.0440
2022-05-13 2022-03-31 13F WR BERKLEY COM 084423102 4,278,575 1,253,719 41.45 284,315 14.35 0.0355
2022-02-11 2021-12-31 13F WR BERKLEY COM 084423102 3,024,856 2,255 0.07 248,643 12.66 0.0299
2021-11-12 2021-09-30 13F WR BERKLEY COM 084423102 3,022,601 211,922 7.54 220,708 5.68 0.0297
2021-08-13 2021-06-30 13F WR BERKLEY COM 084423102 2,810,679 75,708 2.77 208,843 1.49 0.0288
2021-05-12 2021-03-31 13F WR BERKLEY COM 084423102 2,734,971 24,321 0.90 205,770 14.43 0.0315
2021-02-12 2020-12-31 13F WR BERKLEY COM 084423102 2,710,650 -77,170 -2.77 179,820 5.54 0.0302
2020-11-13 2020-09-30 13F WR BERKLEY COM 084423102 2,787,820 7,568 0.27 170,376 7.00 0.0334
2020-08-13 2020-06-30 13F WR BERKLEY COM 084423102 2,780,252 -19,365 -0.69 159,226 9.04 0.0341
2020-05-14 2020-03-31 13F WR BERKLEY COM 084423102 2,799,617 68,146 2.49 146,029 -22.54 0.0381
2020-02-20 2019-12-31 13F/A-1 WR BERKLEY COM 084423102 2,731,471 940,566 52.52 188,522 45.56 0.0394
2020-02-13 2019-12-31 13F WR BERKLEY COM 084423102 2,731,471 940,566 188,522 24,025.4759
2019-11-12 2019-09-30 13F WR BERKLEY COM 084423102 1,790,905 86,212 5.06 129,511 15.13 0.0302
2019-08-14 2019-06-30 13F WR BERKLEY COM 084423102 1,704,693 643,181 60.59 112,492 25.11 0.0272
2019-05-14 2019-03-31 13F WR BERKLEY COM 084423102 1,061,512 -78,317 -6.87 89,916 6.79 0.0233
2019-03-06 2018-12-31 13F/A-1 WR BERKLEY COM 084423102 1,139,829 154,325 15.66 84,199 6.96 0.0260
2019-02-13 2018-12-31 13F WR BERKLEY COM 084423102 1,139,829 154,325 84,199
2018-11-13 2018-09-30 13F WR BERKLEY COM 084423102 985,504 19,476 2.02 78,720 12.62 0.0222
2018-08-14 2018-06-30 13F WR BERKLEY COM 084423102 966,028 50,602 5.53 69,900 5.12 0.0215
2018-05-15 2018-03-31 13F WR BERKLEY COM 084423102 915,426 45,109 5.18 66,493 6.69 0.0217
2018-02-13 2017-12-31 13F WR BERKLEY COM 084423102 870,317 3,532 0.41 62,322 7.78 0.0212
2017-11-14 2017-09-30 13F WR BERKLEY COM 084423102 866,785 33,561 4.03 57,826 0.37 0.0213
2017-08-14 2017-06-30 13F WR BERKLEY COM 084423102 833,224 63,395 8.23 57,612 6.00 0.0227
2017-06-21 2017-03-31 13F/A-1 BERKLEY W R CORP COM COM 084423102 769,829 12,153 1.60 54,353 7.89 0.0223
2017-05-12 2017-03-31 13F BERKLEY W R CORP COM COM 084423102 769,829 54,353
2017-02-14 2016-12-31 13F BERKLEY W R CORP COM COM 084423102 757,676 29,059 3.99 50,376 19.74 0.0234
2016-11-10 2016-09-30 13F BERKLEY W R CORP COM COM 084423102 728,617 32,035 4.60 42,070 0.83 0.0212
2016-08-12 2016-06-30 13F BERKLEY W R CORP COM COM 084423102 696,582 34,601 5.23 41,722 12.21 0.0227
2016-05-13 2016-03-31 13F BERKLEY W R CORP COM COM 084423102 661,981 20,345 3.17 37,183 5.91 0.0197
2016-02-12 2015-12-31 13F BERKLEY W R CORP COM COM 084423102 641,636 732 0.11 35,108 0.82 0.0200
2015-11-13 2015-09-30 13F BERKLEY W R CORP COM COM 084423102 640,904 17,444 2.80 34,824 7.63 0.0211
2015-08-14 2015-06-30 13F BERKLEY W R CORP COM COM 084423102 623,460 54,412 9.56 32,354 12.63 0.0185
2015-05-14 2015-03-31 13F BERKLEY W R CORP COM COM 084423102 569,048 -273 -0.05 28,727 -1.51 0.0164
2015-02-12 2014-12-31 13F BERKLEY W R CORP COM COM 084423102 569,321 -2,094 -0.37 29,166 6.82 0.0174
2014-11-14 2014-09-30 13F BERKLEY W R CORP COM COM 084423102 571,415 3,831 0.67 27,305 3.90 0.0177
2014-08-13 2014-06-30 13F BERKLEY W R CORP COM COM 084423102 567,584 26,128 4.83 26,279 16.64 0.0170
2014-05-14 2014-03-31 13F BERKLEY W R CORP COM COM 084423102 541,456 23,920 4.62 22,530 0.35 0.0151
2014-02-14 2013-12-31 13F BERKLEY W R CORP COM COM 084423102 517,536 45,752 9.70 22,452 11.05 0.0156
2013-11-14 2013-09-30 13F BERKLEY W R CORP COM COM 084423102 471,784 47,782 11.27 20,218 16.72 0.0162
2013-08-14 2013-06-30 13F BERKLEY W R CORP COM COM 084423102 424,002 424,002 17,322 0.0152
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.