W. R. Berkley Corporation
US ˙ NYSE ˙ US0844231029

SecurityWRB / W. R. Berkley Corporation
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership28,590 shares
Latest Disclosed Value $ 1,894,949
Neuberger Berman Group LLC reports 20.82% decrease in ownership of WRB / W. R. Berkley Corporation

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 28,590 shares of W. R. Berkley Corporation (US:WRB) valued at $1,894,945 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 36,106 shares of W. R. Berkley Corporation. This represents a change in shares of -20.82% during the quarter. The current value of the position is $1,960,416 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.

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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)
2026-05-14 2026-03-31 13F WR BERKLEY Common 084423102 28,590 -7,516 -20.82 1,895 -25.17 0.0014
2026-02-13 2025-12-31 13F W R BERKLEY Common 084423102 36,106 2,688 8.04 2,532 -1.13 0.0019
2025-11-12 2025-09-30 13F W R BERKLEY Common 084423102 33,418 -3,238 -8.83 2,560 -4.94 0.0019
2025-08-25 2025-06-30 13F/A-1 WR BERKLEY Common 084423102 36,656 9,685 35.91 2,693 40.33 0.0021
2025-08-13 2025-06-30 13F WR BERKLEY Common 084423102 36,656 9,685 2,693 0.0011
2025-05-13 2025-03-31 13F WR BERKLEY Common 084423102 26,971 -1,703 -5.94 1,919 14.43 0.0016
2025-02-13 2024-12-31 13F WR BERKLEY Common 084423102 28,674 -8,046 -21.91 1,678 -19.49 0.0013
2024-11-14 2024-09-30 13F WR BERKLEY Common 084423102 36,720 16,601 82.51 2,083 31.84 0.0016
2024-11-14 2024-06-30 13F/A-1 WR BERKLEY Common 084423102 20,119 2,938 17.10 1,581 4.02 0.0013
2024-08-13 2024-06-30 13F WR BERKLEY Common 084423102 20,119 2,938 1,581 0.0013
2024-11-14 2024-03-31 13F/A-1 WR BERKLEY Common 084423102 17,181 -7,498 -30.38 1,519 -12.95 0.0013
2024-05-13 2024-03-31 13F WR BERKLEY Common 084423102 17,181 -7,498 1,519 0.0013
2024-11-14 2023-12-31 13F/A-2 WR BERKLEY Common 084423102 24,679 -6,565 -21.01 1,745 -12.00 0.0015
2024-02-09 2023-12-31 13F WR BERKLEY Common 084423102 24,679 -6,565 1,745 0.0015
2023-11-14 2023-09-30 13F WR BERKLEY Common 084423102 31,244 6,291 25.21 1,984 33.45 0.0018
2023-08-11 2023-06-30 13F WR BERKLEY Common 084423102 24,953 -7,883 -24.01 1,486 -27.30 0.0013
2023-05-12 2023-03-31 13F WR BERKLEY Common 084423102 32,836 -4,019 -10.90 2,044 -23.56 0.0019
2023-02-13 2022-12-31 13F WR BERKLEY Common 084423102 36,855 -19,680 -34.81 2,675 -26.76 0.0026
2022-11-15 2022-09-30 13F WR BERKLEY Common 084423102 56,535 45,492 411.95 3,651 384.22 0.0038
2022-08-15 2022-06-30 13F WR BERKLEY Common 084423102 11,043 2,626 31.20 754 34.64 0.0008
2022-05-23 2022-03-31 13F/A-1 WR BERKLEY Common 084423102 8,417 2,846 51.09 560 28.15 0.0005
2022-05-13 2022-03-31 13F WR BERKLEY Common 084423102 8,417 2,846 533 0.0002
2022-02-11 2021-12-31 13F WR BERKLEY Common 084423102 5,571 5,571 437 0.0003
2017-05-10 2017-03-31 13F BERKLEY W R COMMON STOCK 084423102 0 -5,625 -100.00 0 -100.00
2017-02-06 2016-12-31 13F BERKLEY W R COMMON STOCK 084423102 5,625 170 3.12 374 18.73 0.0005
2016-11-02 2016-09-30 13F BERKLEY W R COMMON STOCK 084423102 5,455 5,455 0.00 315 0.0004
2015-07-31 2015-06-30 13F BERKLEY W R COMMON STOCK 084423102 0 -6,091 -100.00 0 -100.00
2015-05-06 2015-03-31 13F BERKLEY W R COMMON STOCK 084423102 6,091 6,091 0.00 308 0.0003
2015-02-05 2014-12-31 13F BERKLEY W R COMMON STOCK 084423102 0 -11,503 -100.00 0 -100.00
2014-11-04 2014-09-30 13F BERKLEY W R COMMON STOCK 084423102 11,503 216 1.91 550 5.16 0.0006
2014-08-05 2014-06-30 13F BERKLEY W R COMMON STOCK 084423102 11,287 5,049 80.94 523 101.93 0.0005
2014-05-05 2014-03-31 13F BERKLEY W R COMMON STOCK 084423102 6,238 -33 -0.53 259 -4.78 0.0003
2014-02-11 2013-12-31 13F BERKLEY W R COMMON STOCK 084423102 6,271 0 0.00 272 1.12 0.0003
2013-10-29 2013-09-30 13F/A-1 BERKLEY W R COMMON STOCK 084423102 6,271 0 0.00 269 5.08 0.0003
2013-10-29 2013-09-30 13F BERKLEY W R COMMON STOCK 084423102 6,492 234
2013-08-13 2013-06-30 13F BERKLEY W R COMMON STOCK 084423102 6,271 6,271 256 0.0003
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.