John D. Vollaro's Trust Transactions in Arch Capital Group Ltd.

John D. Vollaro, a director of Arch Capital Group Ltd., reported transactions involving common shares held in various trusts. On August 5, 2025, Vollaro disposed of 172,155 shares held by a revocable trust where he serves as trustee and 22,844 shares held by a revocable trust where his spouse serves as trustee. On the same day, he acquired 194,999 shares held by a revocable trust where both he and his spouse serve as trustees. Additionally, Vollaro holds 163,000 shares in an irrevocable trust where his spouse is a co-trustee and 53,000 shares in an irrevocable trust where he is a co-trustee. These transactions were reported in a Form 4 filing with the SEC.