# EDGAR Filing Document

**Accession Number:** 0002123771
**File Stem:** 0000007431-26-000030
**Filing Date:** 2026-4
**Character Count:** 8520
**Document Hash:** 9e4ea524203223c474dcdb271e2c9372
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000007431-26-000030.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0000007431-26-000030

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260401

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260401

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Cicali Jessica Marie
- **CENTRAL INDEX KEY:** 0002123771

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-02116
- **FILM NUMBER:** 26828878

**MAIL ADDRESS:**
- **STREET 1:** 2500 COLUMBIA AVENUE
- **CITY:** LANCASTER
- **STATE:** PA
- **ZIP:** 17603
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARMSTRONG WORLD INDUSTRIES INC
- **CENTRAL INDEX KEY:** 0000007431
- **STANDARD INDUSTRIAL CLASSIFICATION:** PLASTICS PRODUCTS, NEC [3089]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 230366390
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 2500 COLUMBIA AVE
- **CITY:** LANCASTER
- **STATE:** PA
- **ZIP:** 17603
- **BUSINESS PHONE:** 7173970611

**MAIL ADDRESS:**
- **STREET 1:** 2500 COLUMBIA AVE
- **CITY:** LANCASTER
- **STATE:** PA
- **ZIP:** 17603

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ARMSTRONG CORK CO
- **DATE OF NAME CHANGE:** 19800611

## Ex-24

```

POWER OF ATTORNEY

      Know all persons by these presents, that the undersigned hereby
      constitutes and appoints Alan M. Kidd of Armstrong World Industries,
      Inc., acting individually, and with full power of substitution, the
      undersigned?s true and lawful attorney-in-fact to:

      1. execute for and on behalf of the undersigned, in the undersigned's
         capacity as an officer and/or director of Armstrong World Industries,
         Inc. (the "Company"), Forms 3, 4 and 5 (including amendments thereto)
         in accordance with Section 16(a) of the Securities Exchange Act of
         1934 and the rules and regulations thereunder and a Form ID, Uniform
         Application for Access Codes to File on Edgar, including any amendment
         thereto, and any other documents necessary or appropriate to obtain
         and maintain codes, passwords, and passphrases enabling the
         undersigned to make electronic filings with the United States
         Securities and Exchange Commission; and to act as an Account
         Administrator (as defined in the EDGAR Filer Manual) for the
         undersigned?s EDGAR account with full authority to manage users,
         update account information, and perform all administrative functions
         on the EDGAR system;

      2. do and perform any and all acts for and on behalf of the undersigned
         which may be necessary or desirable to complete and execute any such
         Forms 3, 4 or 5 or Form ID and timely file such forms (including
         amendments thereto) and application with the United States Securities
         and Exchange Commission and any stock exchange or similar authority;
         and

      3. take any other action of any type whatsoever in connection with the
         foregoing which, in the opinion of such attorney-in-fact, may be of
         benefit to, in the best interest of, or legally required by, the
         undersigned, it being understood that the documents executed by such
         attorney-in-fact on behalf of the undersigned pursuant to this Power
         of Attorney shall be in such form and shall contain such terms and
         conditions as such attorney-in-fact may approve in such attorney-in-
         fact's discretion.

      The undersigned hereby grants to each such attorney-in-fact full power
      and authority to do and perform any and every act and thing whatsoever
      requisite, necessary, or proper to be done in the exercise of any of the
      rights and powers herein granted, as fully to all intents and purposes as
      the undersigned might or could do if personally present, with full power
      of substitution or revocation, hereby ratifying and confirming all that
      such attorney-in-fact, or such attorney-in-fact?s substitute or
      substitutes, shall lawfully do or cause to be done by virtue of this
      power of attorney and the rights and powers herein granted. The
      undersigned acknowledges that the foregoing attorneys-in-fact, in serving
      in such capacity at the request of the undersigned, are not assuming any
      of the undersigned?s responsibilities to comply with Section 16 of the
      Securities Exchange Act of 1934.

      This Power of Attorney supersedes any power of attorney previously
      executed by the undersigned regarding the purposes outlined in the first
      paragraph hereof ("Prior Powers of Attorney"), and the authority of the
      attorneys-in-fact named in any Prior Powers of Attorney is hereby
      revoked.

      This Power of Attorney shall remain in full force and effect until the
      undersigned is no longer required to file Forms 3, 4 or 5 with respect
      to the undersigned's holdings of and transactions in securities issued
      by the Company, unless earlier (a) revoked by the undersigned in a signed
      writing delivered to the foregoing attorneys-in-fact or (b) superseded
      by a new power of attorney regarding the purposes outlined in the first
      paragraph hereof dated as of a later date.

      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
      be executed as of this 10th day of March, 2026.

/s/ Jessica M. Cicali
Name:

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Cicali Jessica Marie<br><sub>(Last) (First) (Middle)</sub><br>2500 COLUMBIA AVENUE<br><sub>(Street)</sub><br>LANCASTER, PA 17603<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>ARMSTRONG WORLD INDUSTRIES INC [ AWI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-04-01 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_SVP, GC & CCO, Secretary_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
Exhibit 24 - Power of Attorney

**Signature:** /s/ Alan M. Kidd, Attorney-in-fact  
**Date:** 2026-04-01

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**