James G. Shiel - 03 Aug 2026 Form 4 Insider Report for BERKLEY W R CORP (WRB)

Reporting relationship: EVP - Investments
Issuer ticker: WRB
Reported as of: 03 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Aug 2026, 16:51:05 UTC
Prior SEC filing: 19 Dec 2025
Source filing: View source filing
Reporting owner signature: James G. Shiel

Key filing fact

James G. Shiel filed Form 4 for BERKLEY W R CORP (WRB) on 05 Aug 2026.

Key facts

This page summarizes James G. Shiel's Form 4 filing for BERKLEY W R CORP (WRB).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 05 Aug 2026, 16:51.

Change

Previous filing in this sequence was filed on 19 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001236251 Primary reporting owner

SHIEL JAMES G

Relationship: EVP - Investments
Address: W. R. BERKLEY CORPORATION, 475 STEAMBOAT ROAD, GREENWICH
Signature: James G. Shiel
Signature date: 05 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WRB transaction

Common Stock

Award

Transaction value
Shares: +14,086
Change %: +1.8%
Price: $0.000000^*
Shares after: 811,283
Date: 03 Aug 2026
Ownership: Direct
Footnotes: F1

WRB transaction

Common Stock

Tax liability

Transaction value
Shares: -650
Change %: -0.08%
Price: $72.29^*
Shares after: 810,633
Date: 03 Aug 2026
Ownership: Direct
Footnotes: F2, F3

WRB holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 208,000
Date: 03 Aug 2026
Ownership: By 2022 SLAT

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents the vesting of tranches of performance-based restricted stock units ("RSUs") granted in 2021, 2022 and 2023 under the W. R. Berkley Corporation 2018 Stock Incentive Plan for the three-year performance period ending June 30, 2026 (consisting of 5,550 shares; 4,181 shares; and 4,355 shares, respectively).

Footnote F2

Represents payment of tax liability by withholding securities incident to the vesting of RSUs.

Footnote F3

Includes 660,468 shares of common stock underlying RSUs, all of which have vested (the receipt of which has been deferred) and does not include unvested shares of common stock underlying performance-based RSUs.