Armstrong World Industries insider sale: 100 AWI shares at $188.78

Rhea-AI Filing Summary

Armstrong World Industries director William H. Osborne sold 100 shares of AWI common stock on 08/08/2025 at $188.78 per share, and reported the transaction on a Form 4. After the sale he directly holds 4,241 shares. The filing shows only this non-derivative sale by the reporting person and provides no additional context or plans.

Insights

Securities Analyst

TL;DR: A small, routine director sale is reported; the change in ownership appears limited and likely immaterial to valuation.

The Form 4 records a single non-derivative sale of 100 AWI shares at $188.78, leaving 4,241 shares held directly by the director. There are no derivative transactions disclosed and no indication of a planned sale program in the filing. From a market-impact perspective this filing documents insider liquidity but does not present material information that would typically alter investor valuation assumptions.

Corporate Governance Expert

TL;DR: Disclosure complies with Section 16 reporting; transaction is standard and yields no governance red flags on its face.

The report names the reporting person as a director and lists the required transaction details: security class, transaction date, transaction code, price, and post-transaction holdings. The signature is provided by an attorney-in-fact. There are no unusual instruments, no clustered insider sales, and no additional notes in the explanation section, so the filing reads as a routine disclosure under reporting rules.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Osborne William H

(Last) (First) (Middle)

C/O ARMSTRONG WORLD INDUSTRIES, INC.

2500 COLUMBIA AVENUE

(Street)

LANCASTER PA 17603

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ARMSTRONG WORLD INDUSTRIES INC [ AWI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/08/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/08/2025		S		100	D	$188.78	4,241	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Alan M. Kidd, Attorney-in-fact	08/11/2025
	** Signature of Reporting Person	Date
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.

FAQ

What transaction did AWI director William H. Osborne report on Form 4?

The filing reports a sale of 100 shares of AWI common stock.

At what price were the AWI shares sold by the director?

The shares were sold at $188.78 per share.

When was the AWI transaction executed?

The transaction date listed in the filing is 08/08/2025.

How many AWI shares does the reporting director hold after the sale?

Following the reported transaction the director directly holds 4,241 shares.

Does the Form 4 show any derivative transactions or additional context?

No. Table II is empty and the filing provides no additional explanatory context or derivative activity.