ARCH CAPITAL GROUP LTD. — Director's Dealing 2025

May 9, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ARCH CAPITAL GROUP LTD. (ACGL)
CIK: 0000947484
Period of Report: 2025-05-07

Reporting Person: KILCOYNE MOIRA A. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-07	Common Shares, $.0011 par value per share	A	1564	—	Acquired	31096	Direct
2025-05-07	Common Shares, $.0011 par value per share	A	1348	—	Acquired	32444	Direct

Footnotes

F1: Subject to the terms of the restricted share agreement, represents restricted shares that will become vested on the date that is the earlier of 1) one year following the grant date or 2) Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders.

F2: Represents shares granted as part of the director-elected annual retainer for serving as a director of the Issuer.