EXHIBIT 99.1 NEWS RELEASE Ducommun Incorporated Reports Third Quarter 2025 Results Record Quarterly Revenue and Gross Margins COSTA MESA, CALIFORNIA (November 6, 2025) – Ducommun Incorporated (NYSE: DCO) ("Ducommun" or the "Company") today reported results for its third quarter ended September 27, 2025. Third Quarter 2025 Recap "Ducommun had another excellent quarter as we continued to make solid progress towards our VISION 2027 goals with both gross margin and Adjusted EBITDA margin at record levels. Net r ...