ACGL: Company disclosure

ITEM 7.01 Regulation FD Disclosure. On October 30, 2026, Arch Insurance North America, part of Arch Capital Group Ltd. (“Arch”) that includes Arch’s insurance operations in the United States and Canada, announced that it had entered into an agreement to acquire Premier Dealer Holding Corp., a Dublin, Ohio-based provider of automotive finance and insurance products and services. The transaction is subject to regulatory approvals and satisfaction of other customary closing conditions. The information in this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward−looking statements. This Form 8-K or any other written or oral statements made by or on behalf of Arch Capital Group Ltd. and its subsidiaries may include forward−looking statements, which reflect the Company’s current views with respect to future events and financial performance. Actual events and results may differ materially from those expressed or implied in these statements. A non-exclusive list of the important factors that could cause actual results to differ materially from those in such forward-looking statements includes the factors identified in our other filings with the U.S. Securities and Exchange Commission (“SEC”). ITEM 9.01 Financial Statements and Exhibits. (d): The following exhibits are being filed herewith. EXHIBIT NO. DESCRIPTION 99.1 Press release dated October 30, 2026. 104 Cover Page Interactive Data File (embedded wi