MAYVILLE ENGINEERING COMPANY ANNOUNCES THIRD QUARTER 2025 RESULTS MILWAUKEE, Wis., November 4, 2025 – Mayville Engineering Company (NYSE: MEC) (the "Company" or "MEC"), a leading value-added provider of design, prototyping and manufacturing solutions serving diverse end markets, today announced results for the three-months ended September 30, 2025. Exhibit 99 THIRD QUARTER 2025 RESULTS (All comparisons versus the prior year period) MANAGEMENT COMMENTARY "During the third quarter, our team continued to execu ...