• Armstrong World Industries published an updated investor presentation tied to its participation in Bank of America Securities Industrials, Transportation and Airlines Key Leaders Conference on May 12, 2026.
• Presentation posted in Events & Presentations section of investor relations website at www.armstrong.com.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Armstrong World Industries Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-26-217179), on May 11, 2026, and is solely responsible for the information contained therein.