ARCH CAPITAL GROUP LTD. 8-K

What Happened

• Arch Capital Group Ltd. (ACGL) announced in an 8-K filed January 22, 2026 that long-serving director John D. Vollaro informed the company on January 15, 2026 that he will not stand for reelection at the Company’s 2026 Annual Meeting of Shareholders. Mr. Vollaro has served as a director for the past 17 years and is a 24-year veteran of the company. The company said his decision is not due to any disagreement with the Company’s operations, policies or practices.

Key Details

• Announcement filed on Form 8-K dated January 22, 2026 (notification received January 15, 2026).
• John D. Vollaro: 17 years as a director, 24 years total service with the company.
• Company attached a press release dated January 22, 2026 (Exhibit 99.1) announcing the decision.

Why It Matters

• A director departure affects board composition and governance; investors should note an upcoming board vacancy to be filled or otherwise addressed at the 2026 Annual Meeting. The filing confirms the departure is voluntary and not the result of disagreement with company management or policies, which reduces governance-related uncertainty. Review future proxy materials or company announcements for information on any nominee(s) or board changes ahead of the annual meeting.