Mayville Engineering Company (MEC) Proxy Filing summary

Executive summary

• Annual Meeting scheduled for April 21, 2026, to elect three directors, ratify Deloitte & Touche LLP as auditor, and hold an advisory vote on executive compensation.

• Shareholders of record as of February 20, 2026, are entitled to vote; 20,318,370 shares outstanding.

• Virtual-only meeting format with multiple voting options: online, phone, or mail.

Voting matters and shareholder proposals

• Election of three directors for terms expiring in 2029.

• Ratification of Deloitte & Touche LLP as independent auditor for 2026.

• Advisory vote to approve executive compensation (say-on-pay).

• Shareholder proposals for the 2027 meeting must be received by November 10, 2026, for proxy inclusion.

Board of directors and corporate governance

• Board consists of seven members, six of whom are independent.

• Board leadership structure separates CEO and Chair roles since July 2022.

• Corporate Governance Guidelines and Code of Conduct and Ethics in place; annual board and committee assessments.

• Board committees: Audit, Compensation, and Nominating & Corporate Governance, all with independent members.

• Board diversity and expertise emphasized in director nominations.