UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 27, 2026

ARMSTRONG WORLD INDUSTRIES, INC.

(Exact name of registrant as specified in its charter)


Pennsylvania	1-2116	23-0366390
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(IRS Employer Identification No.)

2500 Columbia Avenue P.O. Box 3001 Lancaster, Pennsylvania		17603
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (717) 397-0611

(Former name or former address if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of


☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

     Title of each class

     Trading
Symbol(s)

     Name of each exchange on which registered

     Common Stock, $0.01 par value per share

     AWI

     New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Section 5 – Corporate Governance and Management

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On January 27, 2026, the Company and Austin K. So, the Company’s Senior Vice President, General Counsel, Head of Government Relations & Chief Sustainability Officer, Secretary, finalized their mutual agreement regarding his separation, effective April 1, 2026. This separation aligns with a broader board and management transition, which will also be effective April 1, 2026, including the previously announced appointments of a new Executive Chair of the Company’s Board of Directors and a new President and Chief Executive Officer.

There have been no changes to Mr. So’s compensatory arrangements or other terms of employment in connection with his departure. Mr. So’s separation benefits are governed by the Severance Agreement dated February 1, 2022, between the Company and Mr. So, and the applicable equity award agreements.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


ARMSTRONG WORLD INDUSTRIES, INC.

By:		/s/ Austin K. So
		Austin K. So
		Senior Vice President, General Counsel, Head of Government Relations & Chief Sustainability Officer, Secretary

Date: February 2, 2026

ARMSTRONG WORLD INDUSTRIES INC 8-K