ARMSTRONG WORLD INDUSTRIES INC — Proxy Solicitation & Information Statement 2026

Apr 30, 2026

DEFA14A 1 d93199ddefa14a.htm DEFA14A DEFA14A

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☐	Definitive Additional Materials
☒	Soliciting Material Pursuant to §240.14a-12

ARMSTRONG WORLD INDUSTRIES, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than Registrant)

Payment of Filing Fee (check the appropriate box):

☒	No fee required.
☐	Fee paid previously with preliminary materials.
☐	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Your Vote Counts! ARMSTRONG WORLD INDUSTRIES, INC. 2026 Annual Meeting Vote by June 10, 2026 11:59 PM ET ARMSTRONG WORLD INDUSTRIES, INC. JESSICA M. CICALI 2500 COLUMBIA AVENUE LANCASTER, PA 17603 V92728-P49466 You invested in ARMSTRONG WORLD INDUSTRIES, INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on June 11, 2026. Get informed before you vote View the Annual Report and Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 28, 2026. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Vote Virtually at the Meeting Point your camera here and June 11, 2026 11:00 AM ET vote without entering a control number Virtually at: www.virtualshareholdermeeting.com/AWI2026 Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Voting Items Recommends 1. Election of Directors Nominees: 01) Victor D. Grizzle 06) William H. Osborne For 02) Mark A. Hershey 07) Kathleen E. Pitre 03) Richard D. Holder 08) Wayne R. Shurts 04) Kevin P. Holleran 09) Roy W. Templin 05) Barbara L. Loughran 2. To ratify the selection of KPMG LLP as our independent registered public accounting firm for 2026. For 3. To approve the 2026 Directors Stock Unit Plan. For 4. To approve, on an advisory basis, our executive compensation program. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. In their discretion, the proxy holders are authorized to vote such other business as may properly come before the meeting or any postponement or adjournment thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V92729-P49466