Arcosa amends bylaws to align with universal proxy rules and DGCL updates

Arcosa, Inc.

• Bylaws require stockholder nominating directors to disclose intent to solicit proxies under Rule 14a-19 and provide compliance evidence.
• Stockholder proposals and nominations must include representation of compliance with state law and Exchange Act.
• Chairperson explicitly authorized to adjourn stockholder meetings if quorum is absent.
• References to classified board removed; meetings may be held remotely under Delaware law.
• Administrative and modernizing changes adopted effective December 8, 2022.