Armstrong World Industries Inc filed SEC Form 8-K: Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Creation of a Direct Financial Obligation, Financial Statements and Exhibits

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): December 10, 2025

ARMSTRONG WORLD INDUSTRIES, INC.

(Exact name of registrant as specified in its charter)

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

NA

(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

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

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. ◻

Item 1.01 Entry into a Material Definitive Agreement.

On December 10, 2025 (the “Closing Date”), Armstrong World Industries, Inc. (“AWI”) entered into a first amendment to second amended and restated credit agreement (the “First Amendment”), by and among AWI, as the borrower, certain subsidiaries of AWI identified therein as guarantors, Bank of America, N.A., as the administrative agent, the collateral agent, a letter of credit issuer and the swing line lender, Citizens Bank, N.A., Manufacturers & Traders Trust Company, PNC Bank, National Association, TD Bank, N.A., and Truist Bank, as co-syndication agents, JPMorgan Chase Bank, N.A., and First National Bank of Pennsylvania, as co-documentation agents, BofA Securities, Inc., Citizens Bank, N.A., Manufacturers & Traders Trust Company, PNC Capital Markets, LLC, TD Bank, N.A., and Truist Securities, Inc., as joint lead arrangers and joint bookrunners and the other lenders and letter of credit issuers party thereto. The First Amendment amends that certain second amended and restated credit agreement, dated as of December 7, 2022, as amended, among AWI, as the borrower, certain subsidiaries of AWI, as the guarantors thereunder, Bank of America, N.A., as the administrative agent, and the other lenders and institutions from time to time party thereto (the “2022 Credit Agreement”; and the 2022 Credit Agreement as amended by the First Amendment, the “Amended Credit Agreement”).

The Amended Credit Agreement provides AWI with a $500 million revolving credit facility (the “Revolving Credit Facility”), with sublimits for letters of credit and swing line loans, and a $410,625,000 term loan (the “Term Loan”). The Revolving Credit Facility and the Term Loan are referred to as the “Amended Credit Facilities.” The Revolving Credit Facility and the Term Loan are scheduled to mature on December 10, 2030. The Amended Credit Agreement provides for an uncommitted accordion feature that allows AWI to request the existing lenders or third party financial institutions to provide additional capacity in the form of increased revolving credit commitments, and incremental term loans in an amount which, when taken together with the amount of certain other debt (i.e., “Incremental Equivalent Debt”), would not, in the aggregate, exceed the sum of (a) an amount equal to the greater of (i) $550,000,000, and (ii) 100% of consolidated ebitda for the period of the four fiscal quarters most recently ended on or prior to such date for which AWI has delivered certain financial statements, plus (b) additional amounts such that, after giving effect to the incurrence of the then-contemplated incremental loan facility or incremental equivalent debt on a pro forma basis (and assuming for such purposes that such incremental loan facility or incremental equivalent debt is fully drawn), the consolidated net secured leverage ratio would be less than 3.00:1.00.

On December 10, 2025, the signing date of the First Amendment, AWI repaid all existing debt under the 2022 Credit Agreement by way of a roll-over of such existing debt under the 2022 Credit Agreement into the Amended Credit Facility and a reallocation thereof.

Borrowings (other than swing line loans) under the Amended Credit Facilities will bear interest at a rate per annum equal to a floating rate, which will be, at AWI’s option, a base rate (per annum) or rate (per annum) equal to term SOFR (“Term SOFR”) (with a Term SOFR floor of 0%) for the relevant interest period, plus, in the case of base rate and Term SOFR borrowings, an applicable margin determined in accordance with the provisions of the Amended Credit Agreement. The base rate (per annum) will be the highest of (a) the prime rate of Bank of America, N.A., (b) the federal funds effective rate plus 1/2 of 1.00% and (c) one month Term SOFR plus 1.00%, with a base rate floor of 0%. The initial applicable margin for borrowings under the Revolving Credit Facility and the Term Loan will be 0.25% with respect to base rate borrowings and 1.25% with respect to Term SOFR borrowings, with such applicable margins subject to adjustment based on AWI’s consolidated net leverage ratio (ranging from 2.00% to 1.25% for Term SOFR borrowings and from 1.00% to 0.25% for base rate borrowings). In addition to paying interest on outstanding principal under the Amended Credit Agreement, AWI will pay a commitment fee to the lenders under the Revolving Credit Facility in respect of the unutilized commitments thereunder, at an initial rate equal to 0.20% per annum, subject to adjustment based on AWI’s consolidated net leverage ratio (such adjustment ranging from 0.250% to 0.200%). AWI must also pay customary letter of credit and agency fees.

The Amended Credit Agreement continues to require AWI to prepay, subject to certain exceptions, outstanding term loans with (i) 100% of the net cash proceeds of all non-ordinary course asset sales or other dispositions of property (including casualty and condemnation events) in excess of an aggregate of $25 million in any fiscal year, subject to reinvestment rights and certain other exceptions, and (ii) 100% of the net cash proceeds of indebtedness that is not permitted to be incurred under the Amended Credit Agreement. Additionally, such agreement requires that if at any time the aggregate amount of outstanding revolving loans exceeds the commitment amount, the amount of outstanding letters of credit exceeds the letter of credit sublimit or the amount of outstanding swing lines exceeds the swing line sublimit, AWI will be required (subject to certain conditions) to prepay outstanding loans under the Revolving Credit Facility or cash collateralize letters of credit in an amount equal to such excess.

AWI may voluntarily reduce the unutilized portion of the commitment amount and prepay outstanding loans under the Revolving Credit Facility or outstanding term loans, without premium or penalty other than customary “breakage” costs with respect to Term SOFR loans.

The Term Loan shall be repayable in consecutive quarterly installments on the last day of each calendar quarter, beginning on March 31, 2026, with each such installment in an amount equal to (i) for each of the first eight such installments, 0.625% of the sum of (A) the original principal amount of the Term Loan outstanding on the Closing Date, plus (B) the original principal amount of any

incremental add-on term loans related to the Term Loan, and (ii) for each such installments thereafter, 1.250% of the sum of (A) the original principal amount of the Term Loan outstanding on the Closing Date, plus (B) the original principal amount of any incremental add-on term loans related to the Term Loan, and with the balance of the Term Loan due on the maturity date of the Term Loan.

All obligations under the Amended Credit Agreement remain guaranteed by each of AWI’s wholly-owned domestic subsidiaries (other than certain excluded subsidiaries) that individually, or together with its subsidiaries on a consolidated basis, has assets of more than $25 million. All obligations under the Amended Credit Agreement, and guarantees of those obligations, continue to be secured, subject to certain exceptions, by the following assets:

The Amended Credit Agreement continues to contain a number of covenants that, among other things and subject to certain significant exceptions, restrict AWI’s ability and the ability of its subsidiaries to:

In addition, the Amended Credit Agreement continues to require AWI to comply with certain financial ratio maintenance covenants.

The Amended Credit Agreement continues to contain customary affirmative covenants and events of default, including a cross-default provision in respect of any other indebtedness that has an aggregate principal amount exceeding $50 million.

The description of the First Amendment and Amended Credit Agreement set forth under this Item 1.01 does not purport to be complete and is qualified in its entirety by reference to the First Amendment, which is attached hereto as Exhibit 10.1.

Item 1.02 Termination of a Material Definitive Agreement.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 1.02.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

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.

Date: December 16, 2025