W. R. Berkley Corporation
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionAmundi
Latest Disclosed Ownership721,040 shares
Latest Disclosed Value $ 47,790,531
Amundi reports 10.32% decrease in ownership of WRB / W. R. Berkley Corporation

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 721,040 shares of W. R. Berkley Corporation (US:WRB) valued at $47,790,531 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 804,001 shares of W. R. Berkley Corporation. This represents a change in shares of -10.32% during the quarter. The current value of the position is $47,076,702 USD.

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.

Upgrade to unlock premium data and export to Excel .

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 721,040 -82,961 -10.32 47,791 -15.23 0.0055
2026-02-17 2025-12-31 13F BERKLEY W R COM 084423102 804,001 218,946 37.42 56,377 25.18 0.0153
2025-11-14 2025-09-30 13F BERKLEY W R COM 084423102 585,055 -170,197 -22.54 45,038 -15.73 0.0145
2025-08-13 2025-06-30 13F BERKLEY W R COM 084423102 755,252 -403,216 -34.81 53,442 -34.37 0.0184
2025-05-15 2025-03-31 13F W R BERKLEY COM 084423102 1,158,468 -319,464 -21.62 81,429 -5.15 0.0296
2025-02-07 2024-12-31 13F W R BERKLEY COM 084423102 1,477,932 444,986 43.08 85,853 44.62 0.0299
2024-11-13 2024-09-30 13F WR BERKLEY COM 084423102 1,032,946 573,000 124.58 59,363 63.03 0.0219
2024-08-14 2024-06-30 13F WR BERKLEY COM 084423102 459,946 -238,920 -34.19 36,414 -35.66 0.0140
2024-05-15 2024-03-31 13F WR BERKLEY COM 084423102 698,866 95,225 15.78 56,594 29.80 0.0243
2024-02-14 2023-12-31 13F WR BERKLEY COM 084423102 603,641 268,773 80.26 43,601 103.96 0.0196
2023-11-14 2023-09-30 13F WR BERKLEY COM 084423102 334,868 65,244 24.20 21,378 32.85 0.0105
2023-08-14 2023-06-30 13F WR BERKLEY COM 084423102 269,624 45,699 20.41 16,091 14.71 0.0081
2023-05-15 2023-03-31 13F WR BERKLEY COM 084423102 223,925 30,780 15.94 14,029 -0.45 0.0076
2023-02-14 2022-12-31 13F WR BERKLEY COM 084423102 193,145 -218,752 -53.11 14,092 -49.67 0.0077
2022-11-14 2022-09-30 13F WR BERKLEY COM 084423102 411,897 144,635 54.12 28,000 68.38 0.0166
2022-09-02 2022-06-30 13F/A-1 WR BERKLEY COM 084423102 267,262 -2,516 -0.93 16,629 -8.38 0.0133
2022-08-15 2022-06-30 13F WR BERKLEY COM 084423102 267,262 -2,516 16,629 0.0009
2022-05-16 2022-03-31 13F WR BERKLEY COM 084423102 269,778 124,292 85.43 18,150 44.66 0.0123
2022-02-14 2021-12-31 13F WR BERKLEY COM 084423102 145,486 -62,311 -29.99 12,547 -17.49 0.0080
2021-11-15 2021-09-30 13F WR BERKLEY COM 084423102 207,797 22,814 12.33 15,206 116,869.23 0.0107
2021-08-16 2021-06-30 13F WR BERKLEY COM 084423102 184,983 184,983 14 0.0096
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.