UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Enact Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 46-1579166 (State or other jurisdiction of incorporation or organization) For the transition period from to Commission File Number: 001-40399 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15( ...